An impact test device includes a base, a dolly capable of traveling with a test piece placed thereon, and a fall preventing structure configured to prevent the test piece from falling over. The fall preventing structure includes a first section independent of the dolly The first section is provided so as to be movable in a traveling direction of the dolly with respect to the base.
G01N 3/30 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève
The purpose of the present invention is to improve the efficiency of a changeover process of a shaft distortion correcting apparatus. According to one aspect of the present invention, provided is a shaft distortion correcting apparatus comprising: an anvil that supports a workpiece; a linear guide that supports the anvil so as to be movable in the axial direction of the workpiece; and an anvil moving unit that moves the anvil in the axial direction of the workpiece.
B21D 3/10 - Redressage ou remise en forme des barres, tubes ou profilés métalliques, ou des objets déterminés faits à partir de ces matériaux, qu'ils comportent ou non des parties en tôle entre des marteaux et des enclumes ou butées
3.
COLLISION SIMULATION TEST APPARATUS AND IMPACT TEST APPARATUS
A collision simulation test apparatus including a table to which a test piece is to be attached, the table being movable in a predetermined direction, a toothed belt for transmitting power to drive the table, a drive module capable of driving the toothed belt, and a control part capable of controlling the drive module. The control part is capable of controlling the drive module to generate an impact to be applied to the test piece, and the impact generated by the drive module is transmitted to the table by the toothed belt.
B66F 9/06 - Dispositifs pour lever ou descendre des marchandises volumineuses ou lourdes aux fins de chargement ou de déchargement se déplaçant, avec leurs charges, sur des roues ou sur un dispositif analogue, p. ex. chariots élévateurs à fourche
B66F 9/07 - Dispositifs pour stocker du plancher jusqu'au toit, p. ex. "pont stockeur", "transtockeur"
G01N 3/30 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève
G01N 3/31 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève engendrée par un volant en rotation
A tire testing device includes a vehicle, and a test unit provided in the vehicle and capable of supporting a test wheel on which a test tire is mounted in a state in which the test wheel is in contact with a road surface. The test unit includes a power unit configured to output power for rotationally driving the test wheel. The power unit includes a rotation output unit configured to output a rotational motion of a rotation speed corresponding to a traveling speed of the vehicle, and a torque applying unit configured to add torque to the rotational motion to output the torque. the rotation output unit includes a driven wheel configured to contact a road surface, a first axle coupled to the driven wheel, and a first transmission mechanism configured to couple the first axle to an input shaft of the torque applying unit.
The present invention reduces the power consumption of an electric actuator. An electric actuator (100) is formed that comprises: a motor (10) that is capable of being switched between a positive rotation and a reverse rotation; a detection unit (EN) that detects the rotation position of the motor (10); a servo amplifier (95) that drives the motor (10) in accordance with the rotation position and a command value; and a drive unit (100d) and a crank shaft (70) that have an output shaft mechanically coupled to the rotation shaft of the motor (10), convert the positive rotation and the reverse rotation of the rotation shaft into rotation in one direction, and transmit the rotation to the output shaft. The servo amplifier (95) is such that the command value is set for causing the drive unit (100d) and the crank shaft (70) to rotate the output shaft in one direction when the motor (10) is caused to make the positive rotation and the negative rotation. The command value is determined on the basis of the rotation position of the motor (10) when the motor (10) is rotated by rotating the output shaft in the one direction.
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
H02K 7/06 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa
H02P 5/74 - Dispositions spécialement adaptées à la régulation ou la commande de la vitesse ou du couple d’au moins deux moteurs électriques pour commander au moins deux moteurs dynamo-électriques à courant alternatif
A test device includes an input side drive part that drives a steering shaft of a steering device, a control part that controls the input side drive part, and a position detecting part that detects an angular position of the steering shaft. The control part restricts a maximum value of a torque of the steering shaft when the angular position reaches an end-abutment position. The control part also controls driving of the steering shaft by a position control in which the angular position is used as a controlled variable and a torque control in which the torque is used as a controlled variable. The control part performs the position control when the angular position is outside a first angular range including the end-abutment position and switches the driving of the steering shaft from the position control to the torque control when the angular position reaches within the first angular range.
A tire testing device includes a carriage configured to rotatably hold a test wheel provided with a test tire and being capable of travelling on a base along a road surface in a state where the test wheel is made to contact the road surface, and a driving system configured to drive the test wheel and the carriage. The driving system includes a carriage driving part configured to drive the carriage with respect to the road surface in a predetermined speed, a test wheel driving part configured to drive the test wheel in a rotating speed corresponding to the predetermined speed, a driving part configured to generate power to be used to drive the carriage and the test wheel, and a power distributing part configured to distribute power generated by the driving part to the carriage driving part and the test wheel driving part.
09 - Appareils et instruments scientifiques et électriques
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Machine parts other than land vehicles, namely, shafts, axles, and spindles; machine parts other than land vehicles, namely, bearings; machine parts not for land vehicles, namely, shaft couplings and connectors; machine parts not for land vehicles, namely, power transmissions and gearing; machine parts not for land vehicles, namely, shock absorbers; machine parts not for land vehicles, namely, springs; machine parts not for land vehicles, namely, brakes; machine parts not for land vehicles, namely, valves; all the foregoing to exclude elements and parts of machines used to manufacture semiconductors Tire and wheel balance, tire and wheel uniformity, tire and wheel performance, rotator balance, wheel gauge uniformity and balance, machine part balance, machine part durability, shaft straightness, impulse surge, coil winding, DC resistance, surge, insulation resistance, withstand voltage, rotation directions, vibration and impact resistance, seismic activity, stator, gear performance, and steering rack bar measuring or testing machines and instruments; material testing machines and instruments for testing tensile characteristics of industrial material; Tire and wheel balance, tire and wheel uniformity, tire and wheel performance, rotator balance, wheel gauge uniformity and balance, machine part balance, machine part durability, shaft straightness, impulse surge, coil winding, DC resistance, surge, insulation resistance, withstand voltage, rotation directions, vibration and impact resistance, seismic activity, stator, gear performance, and steering rack bar testing machines and instruments; electric actuator; electric actuator for measuring or testing machines and instruments, electric actuator for durability testing apparatus for automobiles or their parts, namely tires, transmissions, engines and steering devices; electric actuator for balance testing apparatus for automobiles or their parts, namely tires, transmissions, engines and steering devices; electric actuator for washing machines for household purposes; electric actuator for dishwashers for household purposes; electric actuator for electric wax-polishing machines for household purposes; electric actuator for vacuum cleaners for household purposes; electric actuator for electric food blenders for household purposes; electric actuator for electric flat irons; electric actuator for household electrothermic appliances, other than for beauty or sanitary purposes; electric actuator for air conditioners; electric actuator for metalworking machines and tools; electric actuator for mining machines and apparatus; electric actuator for industrial fishing machines; electric actuator for chemical processing machines and apparatus; electric actuator for textile machines and apparatus; electric actuator for food or beverage processing machines and apparatus; electric actuator for lumbering, woodworking, or veneer or plywood making machines and apparatus; electric actuator for pulp making, papermaking or paper-working machines and apparatus; electric actuator for printing or bookbinding machines and apparatus; electric actuator for sewing machines; electric actuator for shoe making machines; electric actuator for leather tanning machines; electric actuator for tobacco processing machines; electric actuator for glassware manufacturing machines and apparatus; electric actuator for painting machines and apparatus; electric actuator for packaging or wrapping machines and apparatus; electric actuator for power-operated potters' wheels; electric actuator for plastic processing machines and apparatus; electric actuator for semiconductor manufacturing machines; electric actuator for machines and apparatus for manufacturing rubber goods; electric actuator for stone working machines and apparatus; electric actuator for pneumatic or hydraulic machines and instruments; electric actuator for lawnmowers; electric actuator for electricity generators; electric actuator for hedge trimmers; electric actuator for agricultural machines and agricultural implements, other than hand-operated; electric actuator for construction machines and apparatus; electric actuator for loading-unloading machines and apparatus; electric actuator for rotating wheels of automobiles; electric actuator for steering devices for land vehicles; electric actuator for rotating wheels of two-wheeled vehicles; electric actuator for railway rolling stocks; electric actuator for aircrafts; all the foregoing to exclude machines and instruments used to test and measure semiconductors Machine parts for land vehicles, namely, shafts, axles, and spindles; machine parts for land vehicles, namely, bearings; machine parts for land vehicles, namely, shaft couplings, and connectors; machine parts for land vehicles, namely, power transmissions and gearing; machine parts for land vehicles, namely, shock absorbers; machine parts for land vehicles, namely, springs; machine parts for land vehicles, namely, brakes; automobiles and structural parts and fittings thereof
09 - Appareils et instruments scientifiques et électriques
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Machine parts other than land vehicles, namely, shafts, axles, and spindles; machine parts other than land vehicles, namely, bearings; machine parts not for land vehicles, namely, shaft couplings and connectors; machine parts not for land vehicles, namely, power transmissions and gearing; machine parts not for land vehicles, namely, shock absorbers; machine parts not for land vehicles, namely, springs; machine parts not for land vehicles, namely, brakes; machine parts not for land vehicles, namely, valves; all the foregoing to exclude elements and parts of machines used to manufacture semiconductors Tire and wheel balance, tire and wheel uniformity, tire and wheel performance, rotator balance, wheel gauge uniformity and balance, machine part balance, machine part durability, shaft straightness, impulse surge, coil winding, DC resistance, surge, insulation resistance, withstand voltage, rotation directions, vibration and impact resistance, seismic activity, stator, gear performance, and steering rack bar measuring or testing machines and instruments; material testing machines and instruments for testing tensile characteristics of industrial material; Tire and wheel balance, tire and wheel uniformity, tire and wheel performance, rotator balance, wheel gauge uniformity and balance, machine part balance, machine part durability, shaft straightness, impulse surge, coil winding, DC resistance, surge, insulation resistance, withstand voltage, rotation directions, vibration and impact resistance, seismic activity, stator, gear performance, and steering rack bar testing machines and instruments; electric actuator; electric actuator for measuring or testing machines and instruments, electric actuator for durability testing apparatus for automobiles or their parts, namely tires, transmissions, engines and steering devices; electric actuator for balance testing apparatus for automobiles or their parts, namely tires, transmissions, engines and steering devices; electric actuator for washing machines for household purposes; electric actuator for dishwashers for household purposes; electric actuator for electric wax-polishing machines for household purposes; electric actuator for vacuum cleaners for household purposes; electric actuator for electric food blenders for household purposes; electric actuator for electric flat irons; electric actuator for household electrothermic appliances, other than for beauty or sanitary purposes; electric actuator for air conditioners; electric actuator for metalworking machines and tools; electric actuator for mining machines and apparatus; electric actuator for industrial fishing machines; electric actuator for chemical processing machines and apparatus; electric actuator for textile machines and apparatus; electric actuator for food or beverage processing machines and apparatus; electric actuator for lumbering, woodworking, or veneer or plywood making machines and apparatus; electric actuator for pulp making, papermaking or paper-working machines and apparatus; electric actuator for printing or bookbinding machines and apparatus; electric actuator for sewing machines; electric actuator for shoe making machines; electric actuator for leather tanning machines; electric actuator for tobacco processing machines; electric actuator for glassware manufacturing machines and apparatus; electric actuator for painting machines and apparatus; electric actuator for packaging or wrapping machines and apparatus; electric actuator for power-operated potters' wheels; electric actuator for plastic processing machines and apparatus; electric actuator for semiconductor manufacturing machines; electric actuator for machines and apparatus for manufacturing rubber goods; electric actuator for stone working machines and apparatus; electric actuator for pneumatic or hydraulic machines and instruments; electric actuator for lawnmowers; electric actuator for electricity generators; electric actuator for hedge trimmers; electric actuator for agricultural machines and agricultural implements, other than hand-operated; electric actuator for construction machines and apparatus; electric actuator for loading-unloading machines and apparatus; electric actuator for rotating wheels of automobiles; electric actuator for steering devices for land vehicles; electric actuator for rotating wheels of two-wheeled vehicles; electric actuator for railway rolling stocks; electric actuator for aircrafts; all the foregoing to exclude machines and instruments used to test and measure semiconductors Machine parts for land vehicles, namely, shafts, axles, and spindles; machine parts for land vehicles, namely, bearings; machine parts for land vehicles, namely, shaft couplings, and connectors; machine parts for land vehicles, namely, power transmissions and gearing; machine parts for land vehicles, namely, shock absorbers; machine parts for land vehicles, namely, springs; machine parts for land vehicles, namely, brakes; automobiles and structural parts and fittings thereof
10.
TEST DEVICES, HEDGE TRIMMER, AND ELECTRIC ACTUATOR
A vibration test device includes a vibrating table on which an object to be vibrated is to be attached, an electric actuator that vibrates the vibrating table in a predetermined direction, and a controller that controls the electric actuator. The electric actuator includes an electric motor of which rotation can be switched between forward and reverse rotations, and a drive device that is supplied with electric power from a power source and controlled by the controller to supply driving electric power for vibrating the vibrating table at desired amplitude and frequency to the electric motor. The drive device includes a power regenerative converter that regenerates electric power that is not consumed by acceleration of the electric motor, among electric power regenerated from the electric motor when the vibrating table is vibrated at the desired amplitude and frequency, to the power source.
An electric actuator includes an electric motor, a drive device that drives the electric motor to output a first rotary motion using power accumulated in a capacitor, and a motion converter that is coupled to the electric motor and converts the first rotary motion into a second rotary motion. The first rotary motion is forward and reverse rotary motions that are output by the electric motor as the drive device drives the electric motor to repeat forward rotation and reverse rotation. The second rotary motion is a unidirectional rotary motion. Regenerative electric power generated in the electric motor by the electric motor repeating the forward rotation and the reverse rotation is supplied to the capacitor.
H02K 7/06 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa
H02K 7/00 - Dispositions pour la mise en œuvre d'énergie mécanique associées structurellement aux machines dynamo-électriques, p. ex. association structurelle avec des moteurs mécaniques d'entraînement ou des machines dynamo-électriques auxiliaires
12.
TIRE TESTING METHOD, TIRE TESTING DEVICE, AND COMPUTER-READABLE MEDIUM
A tire testing method includes measuring a μ-S characteristic of a test tire using a first tire testing device causing the tire to travel along a road surface where the tire is made to contact the road surface, measuring the μ-S characteristic of the tire using a second tire testing device that causes the tire to rotate where the tire contacts a road surface provided on an outer periphery of a rotating drum, comparing the μ-S characteristic measured by the first testing device with the μ-S characteristic measured by the second testing device and obtaining a relationship between the two μ-S characteristics, converting the p-S characteristic measured by the second testing device to the p-S characteristic by the first testing device based on the relationship between the two μ-S characteristics, and synthesizing the μ-S characteristic measured in the first measurement step and the μ-S characteristic obtained by the conversion.
A wheel testing system adapted for testing a wheel of a railroad vehicle includes a first testing device including a rail on which a test wheel rolls, a second testing device including a rail wheel that rotates together with the test wheel while being in contact with the test wheel, and a test data processing device that processes pieces of test data of μ-S characteristics obtained by the first testing device and the second testing device. The test data processing device converts a test result by the second testing device into a test result by the first testing device based on the test result by the first testing device and the test result by the second testing device.
09 - Appareils et instruments scientifiques et électriques
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Machine parts other than land vehicles, namely, shafts, axles, and spindles; machine parts other than land vehicles, namely, bearings; machine parts not for land vehicles, namely, shaft couplings and connectors; machine parts not for land vehicles, namely, power transmissions and gearing; machine parts not for land vehicles, namely, shock absorbers; machine parts not for land vehicles, namely, springs; machine parts not for land vehicles, namely, brakes; machine parts not for land vehicles, namely, valves; all the foregoing to exclude elements and parts of machines used to manufacture semiconductors Tire and wheel balance, tire and wheel uniformity, tire and wheel performance, rotator balance, wheel gauge uniformity and balance, machine part balance, machine part durability, shaft straightness, impulse surge, coil winding, DC resistance, surge, insulation resistance, withstand voltage, rotation directions, vibration and impact resistance, seismic activity, stator, gear performance, and steering rack bar measuring and testing machines and instruments; material testing machines and instruments for testing tensile characteristics of industrial material; Tire and wheel balance, tire and wheel uniformity, tire and wheel performance, rotator balance, wheel gauge uniformity and balance, machine part balance, machine part durability, shaft straightness, impulse surge, coil winding, DC resistance, surge, insulation resistance, withstand voltage, rotation directions, vibration and impact resistance, seismic activity, stator, gear performance, and steering rack bar testing machines and instruments; electric actuator; electric actuator for measuring or testing machines and instruments, electric actuator for durability testing apparatus for automobiles or their parts, namely tires, transmissions, engines and steering devices; electric actuator for balance testing apparatus for automobiles or their parts, namely tires, transmissions, engines and steering devices; electric actuator for washing machines for household purposes; electric actuator for dishwashers for household purposes; electric actuator for electric wax-polishing machines for household purposes; electric actuator for vacuum cleaners for household purposes; electric actuator for electric food blenders for household purposes; electric actuator for electric flat irons; electric actuator for household electrothermic appliances, other than for beauty or sanitary purposes; electric actuator for air conditioners; electric actuator for metalworking machines and tools; electric actuator for mining machines and apparatus; electric actuator for industrial fishing machines; electric actuator for chemical processing machines and apparatus; electric actuator for textile machines and apparatus; electric actuator for food or beverage processing machines and apparatus; electric actuator for lumbering, woodworking, or veneer or plywood making machines and apparatus; electric actuator for pulp making, papermaking or paper-working machines and apparatus; electric actuator for printing or bookbinding machines and apparatus; electric actuator for sewing machines; electric actuator for shoe making machines; electric actuator for leather tanning machines; electric actuator for tobacco processing machines; electric actuator for glassware manufacturing machines and apparatus; electric actuator for painting machines and apparatus; electric actuator for packaging or wrapping machines and apparatus; electric actuator for power-operated potters' wheels; electric actuator for plastic processing machines and apparatus; electric actuator for semiconductor manufacturing machines; electric actuator for machines and apparatus for manufacturing rubber goods; electric actuator for stone working machines and apparatus; electric actuator for pneumatic or hydraulic machines and instruments; electric actuator for lawnmowers; electric actuator for electricity generators; electric actuator for hedge trimmers; electric actuator for agricultural machines and agricultural implements, other than hand-operated; electric actuator for construction machines and apparatus; electric actuator for loading-unloading machines and apparatus; electric actuator for rotating wheels of automobiles; electric actuator for steering devices for land vehicles; electric actuator for rotating wheels of two-wheeled vehicles; electric actuator for railway rolling stocks; electric actuator for aircrafts; all the foregoing to exclude machines and instruments used to test and measure semiconductors Machine parts for land vehicles, namely, shafts, axles, and spindles; machine parts for land vehicles, namely, bearings; machine parts for land vehicles, namely, shaft couplings, and connectors; machine parts for land vehicles, namely, power transmissions and gearing; machine parts for land vehicles, namely, shock absorbers; machine parts for land vehicles, namely, springs; machine parts for land vehicles, namely, brakes; automobiles and structural parts and fittings thereof
An oscillating device includes a vibrating table to which an oscillated object is to be attached, and an oscillating unit that oscillates the vibrating table in a predetermined direction. The vibrating table includes a hollow part in which the oscillated object is accommodated, a bottom plate, a frame part that protrudes perpendicularly from an edge portion of the bottom plate, and an intermediate plate arranged inside the frame part. The intermediate plate has a shape of a lattice protruding perpendicularly from the bottom plate.
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
A collision simulation test apparatus including a table to which a test piece is to be attached, the table being movable in a predetermined direction, a toothed belt for transmitting power to drive the table, a drive module capable of driving the toothed belt, and a control part capable of controlling the drive module. The control part is capable of controlling the drive module to generate an impact to be applied to the test piece, and the impact generated by the drive module is transmitted to the table by the toothed belt.
B66F 9/06 - Dispositifs pour lever ou descendre des marchandises volumineuses ou lourdes aux fins de chargement ou de déchargement se déplaçant, avec leurs charges, sur des roues ou sur un dispositif analogue, p. ex. chariots élévateurs à fourche
B66F 9/07 - Dispositifs pour stocker du plancher jusqu'au toit, p. ex. "pont stockeur", "transtockeur"
G01N 3/30 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève
G01N 3/31 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève engendrée par un volant en rotation
A tire testing device includes a carriage configured to rotatably hold a test wheel provided with a test tire and being capable of travelling on a base along a road surface in a state where the test wheel is made to contact the road surface, and a driving system configured to drive the test wheel and the carriage. The driving system includes a carriage driving part configured to drive the carriage with respect to the road surface in a predetermined speed, a test wheel driving part configured to drive the test wheel in a rotating speed corresponding to the predetermined speed, a driving part configured to generate power to be used to drive the carriage and the test wheel, and a power distributing part configured to distribute power generated by the driving part to the carriage driving part and the test wheel driving part.
A linear actuator comprises a base, a fixed part support mechanism attached to the base, a fixed part elastically supported by the fixed part support mechanism, and a movable part driven to reciprocate in a predetermined drive direction with respect to the fixed part. The fixed part support mechanism comprises a linear guide that couples the fixed part to the base to be slidable in the predetermined drive direction, and an elastic member that couples the fixed part to the base to be elastically movable in the predetermined drive direction. The linear guide includes a rail attached to the fixed part, and a runner block attached to the base, the runner block being engaged with the rail slidably in the drive direction.
H02K 33/12 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits se déplaçant dans des directions opposées par alimentation alternée de systèmes à deux bobines
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
An electric linear actuator includes an outer cylinder, an electric motor attached to the outer cylinder, a ball screw configured to convert rotational motion output by the electric motor into linear motion in a predetermined direction, and a ball spline configured to transmit only the linear motion in the predetermined direction, The ball screw includes a screw shaft coupled to a shaft of the electric motor, and a first nut fitted to the screw shaft. The ball spline includes a spline shaft connected to the first nut, and a second nut attached to the outer cylinder and fitted to the spline shaft.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
H02K 7/06 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
The present invention improves the power efficiency of a device equipped with an electric motor. A vibration test device according to one embodiment of the present invention is provided with a vibration table on which an object to be excited is attached, an electric actuator that vibrates the vibration table in a predetermined direction, and a controller that controls the electric actuator. The electric actuator includes an electric motor that can switch between forward rotation and reverse rotation, and a drive device that is supplied with electric power from a power source and that is controlled by the controller to supply the electric motor with driving electric power that excites the vibration table at the desired amplitude and frequency. The drive device includes a power source regeneration converter that, when the vibration table is excited at the desired amplitude and frequency, causes electric power not consumed by acceleration of the electric motor, out of the electric power generated from the electric motor, to be regenerated in the power source.
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
H02K 7/075 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa utilisant des manivelles ou des excentriques
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
H02P 5/74 - Dispositions spécialement adaptées à la régulation ou la commande de la vitesse ou du couple d’au moins deux moteurs électriques pour commander au moins deux moteurs dynamo-électriques à courant alternatif
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
The purpose of the present invention is to improve the usage efficiency of regenerative energy. An electric actuator of one embodiment of the present invention comprises: an electric motor that repeats forward rotation and reverse rotation, at a desired frequency; and a motion converter that converts the forward/reverse rotational motion output from the electric motor to unidirectional rotational motion.
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
B60L 7/14 - Freinage dynamo-électrique par récupération pour véhicules propulsés par moteurs à courant alternatif
B60L 9/18 - Propulsion électrique par source d'énergie extérieure au véhicule utilisant des moteurs à courant alternatif à induction alimentés par des lignes à courant continu
H02K 7/06 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa
H02K 7/075 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa utilisant des manivelles ou des excentriques
H02P 5/74 - Dispositions spécialement adaptées à la régulation ou la commande de la vitesse ou du couple d’au moins deux moteurs électriques pour commander au moins deux moteurs dynamo-électriques à courant alternatif
09 - Appareils et instruments scientifiques et électriques
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Actuators; machine elements, not for land vehicles; shafts,
axles or spindles, machine elements other than land
vehicles; bearings, machine elements not for land vehicles;
shafts, couplings or connectors, machine elements not for
land vehicles; power transmissions and gearing, machine
elements not for land vehicles; shock absorbers, machine
elements not for land vehicles; springs, machine elements
not for land vehicles; brakes, machine elements not for land
vehicles; valves, machine elements not for land vehicles. Measuring or testing machines and instruments; material
testing machines and instruments. Actuators and other machine elements for automobiles;
mechanical elements for land vehicles; shafts, axles or
spindles, machine elements for land vehicles; bearings,
machine elements for land vehicles; shaft couplings or
connectors, machine elements for land vehicles; power
transmissions and gearing, machine elements for land
vehicles; shock absorbers, machine elements for land
vehicles; springs, machine elements for land vehicles;
brakes, machine elements for land vehicles; automobiles and
their parts and fittings.
09 - Appareils et instruments scientifiques et électriques
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Actuators; machine elements, not for land vehicles; shafts,
axles or spindles, machine elements other than land
vehicles; bearings, machine elements not for land vehicles;
shafts, couplings or connectors, machine elements not for
land vehicles; power transmissions and gearing, machine
elements not for land vehicles; shock absorbers, machine
elements not for land vehicles; springs, machine elements
not for land vehicles; brakes, machine elements not for land
vehicles; valves, machine elements not for land vehicles. Measuring or testing machines and instruments; material
testing machines and instruments; testing machines and
instruments. Actuators and other machine elements for automobiles;
mechanical elements for land vehicles; shafts, axles or
spindles, machine elements for land vehicles; bearings,
machine elements for land vehicles; shaft couplings or
connectors, machine elements for land vehicles; power
transmissions and gearing, machine elements for land
vehicles; shock absorbers, machine elements for land
vehicles; springs, machine elements for land vehicles;
brakes, machine elements for land vehicles; automobiles and
their parts and fittings.
A tire testing device includes a road surface, and a carriage configured to rotatably hold a test wheel and traveling along the road surface. The carriage includes an alignment part configured to adjust wheel alignment of the test wheel. The alignment part includes a load adjusting part configured to adjust load acting on the test wheel. The load adjusting part includes a first movable frame movable up and down, a linear guide that guides the movement of the first movable frame, and a first driver that drives the first movable frame up and down. One of a rail and a traveling part of the linear guide is fixed to the first movable frame. The carriage includes a main frame having an alignment mechanism support part that accommodates the alignment part. The other of the rail and the traveling part is fixed to the alignment mechanism support part.
A collision simulation test apparatus including a table to which a test piece is to be attached, the table being movable in a predetermined direction, a toothed belt for transmitting power to drive the table, a drive module capable of driving the toothed belt, and a control part capable of controlling the drive module. The control part is capable of controlling the drive module to generate an impact to be applied to the test piece, and the impact generated by the drive module is transmitted to the table by the toothed belt.
G01N 3/30 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève
B66F 9/06 - Dispositifs pour lever ou descendre des marchandises volumineuses ou lourdes aux fins de chargement ou de déchargement se déplaçant, avec leurs charges, sur des roues ou sur un dispositif analogue, p. ex. chariots élévateurs à fourche
B66F 9/07 - Dispositifs pour stocker du plancher jusqu'au toit, p. ex. "pont stockeur", "transtockeur"
G01N 3/31 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève engendrée par un volant en rotation
The purpose of the present invention is to provide a vehicle wheel test device which makes it possible to perform a test which is nearer the actual travel state. A vehicle wheel test system according to one embodiment of the present invention which is equipped with a first test device provided with a rail along which a test wheel rolls, a second test device provided with a rail wheel which rotates along with the test wheel while contacting the test wheel, and a test data processing device which processes the test data obtained from the first test device and the second test device, wherein the test data processing device converts the test results from the second test device into the test results from the first test device on the basis of the test results from the first test device and the test results from the second test device.
A tire testing method according to one embodiment of the present invention comprises: a first measurement step for measuring a μ-S property of a test tire with a first tire testing device that causes the test tire to travel along a road surface in a state of being in contact with the road surface; a second measurement step for measuring a μ-S property of the test tire with a second tire testing device that causes the test tire to rotate in a state of being in contact with a road surface provided to the outer periphery of a rotary drum; a comparison step for comparing the μ-S property measured by the first tire testing device and the μ-S property measured by the second tire testing device to find a relationship between the two μ-S properties; a property conversion step for converting the μ-S property measured by the second tire testing device to a μ-S property according to the first tire testing device on the basis of the relationship between the two μ-S properties; and combining the μ-S property measured in the first measurement step and the μ-S property obtained by converting in the property conversion step to acquire a μ-S property of the test tire.
A dynamic balance testing device includes a vibrating unit configured to rotatably hold a predetermined rotating body being a specimen, a first spring configured to elastically support the vibrating unit and restrict displacement of the vibrating unit in a direction parallel to a rotation axis of the predetermined rotating body, and at least three second springs configured to elastically support the vibrating unit and restrict displacement of the vibrating unit in a predetermined direction orthogonal to the rotation axis. The at least three second springs are attached to the vibrating unit on a same predetermined plane, and the vibrating unit holds the predetermined rotating body such that a projection of a center of gravity of the predetermined rotating body onto the predetermined plane is substantially at the same position as a position where the first spring is attached to the vibrating unit.
G01M 1/22 - Détermination du balourd en donnant à l'objet à tester un mouvement d'oscillation ou de rotation et en convertissant les vibrations dues au balourd en variables électriques
G01M 1/16 - Détermination du balourd en donnant à l'objet à tester un mouvement d'oscillation ou de rotation
29.
Wheel test device with rail wheel to contact test wheel while test wheel is rotatably supported
An impact test device includes a base, a dolly capable of traveling with a test piece placed thereon, and a fall preventing structure configured to prevent the test piece from falling over. The fall preventing structure includes a first section independent of the dolly The first section is provided so as to be movable in a traveling direction of the dolly with respect to the base.
G01N 3/30 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève
The present invention improves responsiveness of electric linear actuators. According to an embodiment of the present invention, an electric linear actuator is provided, which comprises: an outer cylinder; an electric motor attached to the outer cylinder; a ball screw for converting rotational motion outputted from the electric motor into linear motion in a prescribed direction; and a ball spline for transmitting only the linear motion in the prescribed direction. The ball screw includes a screw shaft coupled to a shaft of the electric motor, and a first nut attached to the outer cylinder and engaged with the screw shaft. The ball spline includes a spline shaft connected to the first nut, and a second nut attached to the outer cylinder and engaged with the spline shaft.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
A tire testing device includes a road surface, a carriage capable of traveling along the road surface in a state where a test tire is in contact with the road surface, and a guide mechanism configured to guide movement of the carriage. The guide mechanism includes a rail, and a runner. The runner includes a first roller that rolls on an upper surface of a head of the rail, and a second roller that rolls on a lower surface or a side surface of the head of the rail. The tire testing device includes a first guide mechanism and a second guide mechanism. In the first guide mechanism, the rollers except for the first roller are disposed only on one side of the rail, and in the second guide mechanism, the rollers except for the first roller are disposed only on an other side of the rail.
A linear actuator, comprising: a base; a fixed part support mechanism attached to the base; a fixed part elastically supported by the fixed part support mechanism; and a movable part driven to reciprocate in a predetermined drive direction with respect to the fixed part, wherein the fixed part support mechanism comprises: a movable block attached to the fixed part; a linear guide that couples the movable block with the base to be slidable in the predetermined drive direction; and an elastic member that is disposed between the base and the movable block and prevents transmission of a high frequency component of vibration in the predetermined drive direction.
H02K 33/12 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits se déplaçant dans des directions opposées par alimentation alternée de systèmes à deux bobines
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
A tire testing apparatus according to an embodiment of the present invention comprises: a road surface; and a carriage which rotatably holds a test wheel to which a test tire has been fitted, and which is capable of traveling along the road surface with the test tire grounded on the road surface. The carriage comprises: an axle part that rotatably supports the test wheel; and an alignment part that can adjust the wheel alignment of the test wheel by changing the orientation of the axle part. The alignment part comprises a load adjustment part that can adjust the load applied to the test wheel by changing the height of the axle part. The load adjustment part comprises: a first movable frame that is supported so as to be movable vertically; a linear guide that guides the vertical movement of the first movable frame; and a first drive unit that drives the first movable frame vertically.
A tire testing device includes a vehicle, and a test unit provided in the vehicle and capable of supporting a test wheel on which a test tire is mounted in a state in which the test wheel is in contact with a road surface. The test unit includes a power unit configured to output power for rotationally driving the test wheel. The power unit includes a rotation output unit configured to output a rotational motion of a rotation speed corresponding to a traveling speed of the vehicle, and a torque applying unit configured to add torque to the rotational motion to output the torque, the rotation output unit includes a driven wheel configured to contact a road surface, a first axle coupled to the driven wheel, and a first transmission mechanism configured to couple the first axle to an input shall of the torque applying unit.
A collision simulation test apparatus including a table to which a test piece is to be attached, the table being movable in a predetermined direction, a toothed belt for transmitting power to drive the table, a drive module capable of driving the toothed belt, and a control part capable of controlling the drive module. The control part is capable of controlling the drive module to generate an impact to be applied to the test piece, and the impact generated by the drive module is transmitted to the table by the toothed belt.
G01N 3/30 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève
B66F 9/06 - Dispositifs pour lever ou descendre des marchandises volumineuses ou lourdes aux fins de chargement ou de déchargement se déplaçant, avec leurs charges, sur des roues ou sur un dispositif analogue, p. ex. chariots élévateurs à fourche
B66F 9/07 - Dispositifs pour stocker du plancher jusqu'au toit, p. ex. "pont stockeur", "transtockeur"
G01N 3/31 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève engendrée par un volant en rotation
An embodiment of the present invention provides a wheel test device comprising: a rail wheel support which rotatably supports a rail wheel; a wheel support which rotatably supports a test wheel in a state where the test wheel is in contact with the rail wheel; a first electric motor which rotates the rail wheel and the test wheel; and a torque generation device which generates torque to be imparted to the test wheel, wherein the torque generation device comprises a rotary frame which is driven to rotate by a rotary drive device and a second electric motor which is attached to the rotary frame, and at least one of the rail wheel and the test wheel is connected to the first electric motor with the torque generation device therebetween.
A test device includes an input side drive part that drives a steering shaft of a steering device, a control part that controls the input side drive part, and a position detecting part that detects an angular position of the steering shaft. The control part restricts a maximum value of a torque of the steering shaft when the angular position reaches an end-abutment position. The control part also controls driving of the steering shaft by a position control in which the angular position is used as a controlled variable and a torque control in which the torque is used as a controlled variable. The control part performs the position control when the angular position is outside a first angular range including the end-abutment position and switches the driving of the steering shaft from the position control to the torque control when the angular position reaches within the first angular range.
According to the present invention, providing a fall prevention means independently from an impact platform makes it possible to reduce any increase in motive power needed to drive the impact platform. According to one aspect of the present invention, there is provided an impact test device comprising a base (2), a platform truck (20) that can travel while laden with sample products (W), and an anti-toppling means that prevents the sample products (W) from toppling, the anti-toppling means including a first means (50) formed independently from the platform truck (20), and the first means (50) being provided so as to be capable of moving in the travel direction of the platform truck (20) relative to the base (2). According to another aspect of the present invention, there is provided an impact test device comprising a platform truck (20) that can travel while carrying sample products (W), and a fall prevention means that prevents the sample products (W) from falling, the fall prevention means including a second means (60) installed on the platform truck (20), and the second means (60) being provided with a plurality of props (64) that are erected on the platform truck (20) and a linear member (66) that is extended between the plurality of props (64).
G01N 3/30 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève
An oscillating device including a vibrating table, an actuator configured to oscillate the vibrating table in a first direction, a coupling mechanism configured to couple the vibrating table with the actuator in such a manner that the vibrating table is movable relative to the actuator in a second direction orthogonal to the first direction, and a counter balancer attached to the vibrating table and configured to compensate an imbalance of an oscillated portion including at least the vibrating table, the imbalance being caused by attaching the coupling mechanism to the vibrating table.
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
The objective of the present invention is to enable bench testing of a tire to be performed under various road surface conditions, without moving the road surface during testing, by causing a carriage which holds a test tire to travel along the road surface. A tire testing device according to an embodiment of the present invention is provided with: a road surface; a carriage which rotatably holds a test tire to which a test tire is fitted, and which is capable of traveling along the road surface with the test tire grounded on the road surface; and a guide mechanism which guides the movement of the carriage in a direction of travel. The guide mechanism is provided with a rail which extends in the direction of travel of the carriage, and a runner which is fixed to the carriage and which is capable of traveling along the rail. The runner is provided with a roller capable of rolling along the rail, and a bearing which rotatably supports the roller, wherein the bearing is a rolling bearing provided with rolling elements that roll along a circular orbit.
A tire testing device includes a carriage configured to rotatably hold a test wheel provided with a test tire and being capable of travelling on a base along a road surface in a state where the test wheel is made to contact the road surface, and a driving system configured to drive the test wheel and the carriage. The driving system includes a carriage driving part configured to drive the carriage with respect to the road surface in a predetermined speed, a test wheel driving part configured to drive the test wheel in a rotating speed corresponding to the predetermined speed, a driving part configured to generate power to be used to drive the carriage and the test wheel, and a power distributing part configured to distribute power generated by the driving part to the carriage driving part and the test wheel driving part.
A dynamic balance testing device includes a vibrating unit configured to rotatably hold a predetermined rotating body being a specimen, a first spring configured to elastically support the vibrating unit and restrict displacement of the vibrating unit in a direction parallel to a rotation axis of the predetermined rotating body, and at least three second springs configured to elastically support the vibrating unit and restrict displacement of the vibrating unit in a predetermined direction orthogonal to the rotation axis. The at least three second springs are attached to the vibrating unit on a same predetermined plane, and the vibrating unit holds the predetermined rotating body such that a projection of a center of gravity of the predetermined rotating body onto the predetermined plane is substantially at the same position as a position where the first spring is attached to the vibrating unit.
G01M 1/22 - Détermination du balourd en donnant à l'objet à tester un mouvement d'oscillation ou de rotation et en convertissant les vibrations dues au balourd en variables électriques
G01M 1/16 - Détermination du balourd en donnant à l'objet à tester un mouvement d'oscillation ou de rotation
According to one embodiment of the present invention, provided is a tire testing device including a vehicle, and a test unit that is mounted on the vehicle and capable of supporting a test wheel having a test tire attached thereto, in a state of being in contact with a road surface. The test unit is provided with a power unit that outputs power for driving the test wheel to rotate. The power unit is provided with a rotation output unit for outputting a rotational motion of a rotational speed corresponding to the traveling speed of the vehicle, and a torque addition unit for adding and outputting torque to the rotational motion.
One embodiment of the present invention provides a test device which is provided with an input side drive unit capable of rotationally driving a steering shaft of a steering device serving as a test piece, and a control unit which controls the input side drive unit to rotationally drive the steering shaft in accordance with a prescribed test waveform, wherein the control unit is configured to be capable of executing reverse control to reverse the direction of rotation of the steering shaft immediately if an angular position of the steering shaft reaches an end contacting position, which is the end of a movable range of the steering shaft, and wherein said reverse control includes a skip process in which, when the angular position of the steering shaft has reached the end contacting position, the process jumps to the next control point at which a torque is expected to be approximately the same as at that point in time.
G01M 13/025 - Bancs d’essai avec moyens d’entraînement en rotation et de chargeSimulations de charge ou d’entraînement
B62D 3/12 - Boîtiers de direction mécaniques du type à crémaillère
B62D 7/08 - Timonerie de directionFusées ou leur montage pour roues pivotant individuellement, p. ex. sur pivot de fusée les axes de pivotement étant situés dans un même plan perpendiculaire à l'axe longitudinal du véhicule
A collision simulation test apparatus including a table to which a test piece is to be attached, the table being movable in a predetermined direction, a toothed belt for transmitting power to drive the table, a drive module capable of driving the toothed belt, and a control part capable of controlling the drive module. The control part is capable of controlling the drive module to generate an impact to be applied to the test piece, and the impact generated by the drive module is transmitted to the table by the toothed belt.
G01N 3/30 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève
G01N 3/31 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève engendrée par un volant en rotation
B66F 9/07 - Dispositifs pour stocker du plancher jusqu'au toit, p. ex. "pont stockeur", "transtockeur"
B66F 9/06 - Dispositifs pour lever ou descendre des marchandises volumineuses ou lourdes aux fins de chargement ou de déchargement se déplaçant, avec leurs charges, sur des roues ou sur un dispositif analogue, p. ex. chariots élévateurs à fourche
A linear actuator, comprising: a base; a fixed part support mechanism attached to the base; a fixed part elastically supported by the fixed part support mechanism; and a movable part driven to reciprocate in a predetermined drive direction with respect to the fixed part, wherein the fixed part support mechanism comprises: a movable block attached to the fixed part; a linear guide that couples the movable block with the base to be slidable in the predetermined drive direction; and an elastic member that is disposed between the base and the movable block and prevents transmission of a high frequency component of vibration in the predetermined drive direction.
H02K 33/12 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits se déplaçant dans des directions opposées par alimentation alternée de systèmes à deux bobines
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
One embodiment of the present invention provides a tire testing device provided with: a road surface unit including a road surface; and a carriage which rotatably holds a test wheel provided with a test tire, and which is capable of traveling along the road surface with the test wheel grounded on the road surface.
An oscillating device comprising: a vibrating table; an X-axis oscillating unit configured to oscillate the vibrating table in an X-axis direction; a Y-axis oscillating unit configured to oscillate the vibrating table in a Y-axis direction; a Z-axis oscillating unit configured to oscillate the vibrating table in a Z-axis direction; a first linear guideway configured to couple the vibrating table and the Z-axis oscillating unit slidably in the X-axis direction; and a second linear guideway configured to couple the vibrating table and the Z-axis oscillating unit slidably in the Y-axis direction, wherein the first linear guideway comprises: a first rail extending in the X-axis direction; and a first carriage configured to engage with the first rail slidably in the X-axis direction, wherein the second linear guideway comprises: a second rail extending in the Y-axis direction; and a second carriage configured to engage with the second rail slidably in the Y-axis direction, wherein the first carriage is provided with first carriage attachment holes being drilled holes, wherein the second carriage is provided with second carriage attachment holes being tapped holes, and wherein the first carriage is directly fixed to the second carriage by bolts being inserted to the first carriage attachment holes and screwed in the second carriage attachment holes.
A dynamic balance testing device includes a vibrating unit configured to rotatably hold a predetermined rotating body being a specimen, a first spring configured to elastically support the vibrating unit and restrict displacement of the vibrating unit in a direction parallel to a rotation axis of the predetermined rotating body, and at least three second springs configured to elastically support the vibrating unit and restrict displacement of the vibrating unit in a predetermined direction orthogonal to the rotation axis. The at least three second springs are attached to the vibrating unit on a same predetermined plane, and the vibrating unit holds the predetermined rotating body such that a projection of a center of gravity of the predetermined rotating body onto the predetermined plane is substantially at the same position as a position where the first spring is attached to the vibrating unit.
G01M 1/22 - Détermination du balourd en donnant à l'objet à tester un mouvement d'oscillation ou de rotation et en convertissant les vibrations dues au balourd en variables électriques
G01M 1/16 - Détermination du balourd en donnant à l'objet à tester un mouvement d'oscillation ou de rotation
59.
TIRE TESTING METHOD, TIRE TESTING DEVICE, AND DISPERSION DEVICE
The purpose of the present invention is to prevent a tire testing device from malfunctioning by preventing rubber waste produced by tire testing from adhering to the tire testing device and a test tire. One embodiment of this invention is a tire testing method including: a contact step for causing a test tire to come into contact with a simulated road surface provided on the outer circumference of a rotating drum, a rotation step for rotating the rotating drum and the test tire that has been brought into contact with the simulated road surface, and a powder dispersion step for dispersing a powder for reducing the adhesiveness of rubber waste produced through abrasion of the test tire on the outer circumferential surface of the rotating drum and/or test tire.
A dynamic balance testing device includes a plurality of support rollers having respective rotation axes extending in a predetermined direction, the plurality of support rollers being configured to support a specimen in internal contact with an inner periphery of the specimen in such a manner that the specimen is rotatable about a central axis of the inner periphery, the plurality of support rollers including, a first support roller having a first rotation axis that is parallel to the central axis of the inner periphery of the specimen, and a second support roller having a second rotation axis that is parallel to the central axis of the inner periphery of the specimen and is positionally different from the first rotation axis of the first support roller.
An oscillating device including a vibrating table, an actuator configured to oscillate the vibrating table in a first direction, a coupling mechanism configured to couple the vibrating table with the actuator in such a manner that the vibrating table is movable relative to the actuator in a second direction orthogonal to the first direction, and a counter balancer attached to the vibrating table and configured to compensate an imbalance of an oscillated portion including at least the vibrating table, the imbalance being caused by attaching the coupling mechanism to the vibrating table.
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
62.
COLLISION SIMULATION TEST APPARATUS AND IMPACT TEST APPARATUS
A collision simulation test apparatus according to an embodiment of the present invention is provided with a table to which a specimen is attached and a toothed belt for driving the table. The toothed belt is provided with a carbon core wire.
G01N 3/30 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève
The dynamic balancing tester according to an embodiment of the present invention is provided with: a vibration unit which rotatably holds a rotating body, which is a body to be tested; a first spring which elastically supports the vibration unit, and regulates displacement of the vibration unit in a direction parallel to the rotation axis of the rotating body; and at least three second springs which elastically support the vibration unit, and regulate displacement of the vibration unit in a prescribed direction orthogonal to the rotation axis; wherein the at least three second springs are attached to the vibration unit on the same prescribed plane; and the vibration unit holds the rotating body such that the center of gravity thereof is projected onto the prescribed plane at roughly the same position as the position at which the first spring is attached to the vibration unit.
A dynamic balance testing device according to one mode of embodiment of the present invention is provided with a plurality of support rollers which rotatably support a specimen around a central axis of rotation of the specimen, the plurality of support rollers including a first support roller and a second support roller, wherein the specimen has an inner peripheral surface of which the central axis of rotation is the central axis, and each of the plurality of support rollers is in internal contact with the inner peripheral surface.
A vibration application device according to an embodiment of the present application comprises: a vibration table; an X-axis vibration application unit that vibrates the vibration table in the X-axis direction; and a Y-axis linear guideway that connects the vibration table and the X-axis vibration application unit so as to be capable of sliding in the Y-axis direction, which is perpendicular to the X-axis direction. The Y-axis linear guideway comprises: an X-axis rail that extends in the Y-axis direction; and a Y-axis carriage that is engaged with the Y-axis rail so as to be capable of sliding in the Y-axis direction. A plurality, and at least five, load paths are formed between the Y-axis carriage and the Y-axis rail, and a plurality rolling elements rolls in each of the load paths.
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
66.
Oscillating device, electrodynamic actuator, cross guideway, linear guideway and vibrating table
An oscillating device comprising: a vibrating table; an X-axis oscillating unit configured to oscillate the vibrating table in an X-axis direction; a Y-axis oscillating unit configured to oscillate the vibrating table in a Y-axis direction; a Z-axis oscillating unit configured to oscillate the vibrating table in a Z-axis direction; a first linear guideway configured to couple the vibrating table and the Z-axis oscillating unit slidably in the X-axis direction; and a second linear guideway configured to couple the vibrating table and the Z-axis oscillating unit slidably in the Y-axis direction, wherein the first linear guideway comprises: a first rail extending in the X-axis direction; and a first carriage configured to engage with the first rail slidably in the X-axis direction, wherein the second linear guideway comprises: a second rail extending in the Y-axis direction; and a second carriage configured to engage with the second rail slidably in the Y-axis direction, wherein the first carriage is provided with first carriage attachment holes being drilled holes, wherein the second carriage is provided with second carriage attachment holes being tapped holes, and wherein the first carriage is directly fixed to the second carriage by bolts being inserted to the first carriage attachment holes and screwed in the second carriage attachment holes.
A bearing testing machine comprising: a testing machine shaft to which at least one test piece being a bearing is attached, the testing machine shaft being a rotation shaft extending in a Y axis direction being a horizontal direction; a rotational driving unit configured to rotate the testing machine shaft; a test piece holding unit configured to elastically holds the test piece; and an at least one axle driving unit configured to drive the testing machine shaft in a vertical direction and in an X axis direction which is a horizontal direction orthogonal to the Y axis direction.
A vibration-applying device in one embodiment of this invention is provided with a vibrating table, an x-axis vibration-applying unit that makes the vibrating table vibrate along an x-axis, a y-axis vibration-applying unit that makes the vibrating table vibrate along a y-axis, a z-axis vibration-applying unit that makes the vibrating table vibrate along a z-axis, a first linear guideway that couples the vibrating table and the z-axis vibration-applying unit together so as to be able to slide along the x-axis, and a second linear guideway that couples the vibrating table and the z-axis vibration-applying unit together so as to be able to slide along the y-axis. The x-axis linear guideway has an x-axis rail that extends along the x-axis and an x-axis carriage that engages with said x-axis rail so as to be able to slide along the x-axis, and the y-axis linear guideway has a y-axis rail that extends along the y-axis and a y-axis carriage that engages with said y-axis rail so as to be able to slide along the y-axis. The x-axis carriage is directly affixed to the y-axis carriage.
In order to be capable of performing axle bearing tests that accurately simulate the normal travel state used by a dynamic load, this bearing testing machine comprises: a testing machine shaft being a rotating shaft extending in the horizontal Y-axis direction and having attached thereto the bearing test piece; a rotation drive unit that rotates and drives the testing machine shaft; a test piece holding unit that elastically holds the test piece; and an axle drive unit that drives the testing machine shaft in the vertical direction and in the X-axis direction being the horizontal direction perpendicular to the Y-axis direction.
A control device including a simulation unit to simulate behaviors of a virtual mechanical system, and a drive control unit to control driving of servomotors based on the simulation results, is provided. The virtual mechanical system includes a first drive module, a first main shaft module connected to the first drive module, and a plurality of power transmission subsystems, each of which is connected to the first main shaft module and is associated with one of the servomotors respectively. Each of the power transmission subsystems includes an output module. The servomotor associated with the power transmission subsystem is driven according to a simulated result of input into the output module.
G05B 19/414 - Structure du système de commande, p. ex. automate commun ou systèmes à multiprocesseur, interface vers le servo-contrôleur, contrôleur à interface programmable
G01M 13/025 - Bancs d’essai avec moyens d’entraînement en rotation et de chargeSimulations de charge ou d’entraînement
A torsion tester including a plurality of driving units configured to connect with and rotate three or more input/output shafts of a test body, respectively, and a controller configured to control the plurality of driving units to be driven with one of individually-set rotational frequencies and individually-set torques, respectively.
G01N 3/22 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de torsion
G01N 3/02 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique Parties constitutives
G01M 13/02 - Mécanismes d’engrènementMécanismes de transmission
A torsion tester including a reaction force unit and a drive unit including a servo motor, a first reduction gear, a shaft transmitting an output force from the first reduction gear, a clutch having an input shaft fixed to the shaft, a second reduction gear decelerating rotation of an output shaft of the clutch, a chuck, and a connection mechanism connecting the chuck with one of the shaft and the second reduction gear, the drive unit configured to switch between a first mode where the clutch is disengaged, and the shaft is connected with the chuck by the connection mechanism and a second mode where the clutch is engaged, and the second reduction gear is connected with the chuck by the connection mechanism.
G01N 3/22 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de torsion
G01N 3/08 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique par application d'efforts permanents de traction ou de compression
73.
TWO-OUTPUT-SHAFT MOTOR, MOTOR UNIT, POWER SIMULATOR, TORSION TESTING DEVICE, ROTATIONAL TORSION TESTING DEVICE, TIRE TESTING DEVICE, LINEAR ACTUATOR AND VIBRATION DEVICE
This two-output-shaft motor is equipped with: a cylindrical main frame; a substantially plate-like first bracket that is attached to one axial end of the main frame; a substantially plate-like second bracket that is attached to the other axial end of the main frame; and a drive shaft that runs through the hollow part of the main frame, penetrates through the first bracket and the second bracket, and is rotatably supported by bearings provided in the first bracket and the second bracket. One end of the drive shaft protrudes to the outside from the first bracket and forms a first output shaft for outputting a driving force to the outside, and the other end of the drive shaft protrudes to the outside from the second bracket and forms a second output shaft for outputting the driving force to the outside.
H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction
G01L 5/00 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques
H02K 7/00 - Dispositions pour la mise en œuvre d'énergie mécanique associées structurellement aux machines dynamo-électriques, p. ex. association structurelle avec des moteurs mécaniques d'entraînement ou des machines dynamo-électriques auxiliaires
H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques
A rotational torsion tester, comprising: a first drive shaft; a second drive shaft; a load applying unit that applies a torsional load to a workpiece; at least one bearing unit including a first bearing unit that supports the load applying unit to be rotatable about a rotation axis; a rotation drive unit having a first electric motor that drives the second drive shaft and the load applying unit to rotate in phase; and a torque sensor that detects the torsional load, wherein the load applying unit comprises: a second electric motor that drives the first drive shaft; the torque sensor is attached to a part at which the first drive shaft is inserted into the shaft part; the torque sensor is disposed between a pair of first bearings; and the torque sensor includes a strain gauge adhered to a narrowed part to detect the torsional load.
G01L 3/14 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple est autre qu'un arbre élastique en torsion
G01L 3/00 - Mesure du couple, du travail, de la puissance ou du rendement mécanique en général
G01L 1/22 - Mesure des forces ou des contraintes, en général en mesurant les variations de la résistance ohmique des matériaux solides ou des fluides conducteurs de l'électricitéMesure des forces ou des contraintes, en général en faisant usage des cellules électrocinétiques, c.-à-d. des cellules contenant un liquide, dans lesquelles un potentiel électrique est produit ou modifié par l'application d'une contrainte en utilisant des jauges de contrainte à résistance
G01L 5/00 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques
G01M 13/02 - Mécanismes d’engrènementMécanismes de transmission
G01N 3/22 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de torsion
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
Provided is a torsion tester which comprises a sealed case accommodating a decelerator, and an oil cup. An internal space of the case and an internal space of the oil cup communicate with each other through a communication passage. A lubricant is filled into the case. When the lubricant in the case is thermally expanded, the surplus lubricant moves from within the case to the oil cup through the communication passage to be accumulated. When the volume of the lubricant in the case is decreased, the lubricant moves from the oil cup to within the case through the communication passage to fill the shortage so that the case always remains filled with the lubricant.
G01N 3/22 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de torsion
76.
CONTROL PROGRAM, CONTROL METHOD, AND CONTROL DEVICE
The present invention is provided with a simulation unit for simulating the operation of a virtual mechanical mechanism, and a drive control unit for controlling the driving of a plurality of servomotors on the basis of the result of the simulation. The virtual mechanical mechanism is provided with: a first drive module; a first main shaft module connected to the first drive module; and a plurality of power transmission subsystems that are connected to the first main shaft module and are respectively associated with the plurality of servomotors. Each of the power transmission subsystems is provided with: a second drive module; a differential gear module having a main input shaft, an auxiliary input shaft, and an output shaft; and an output module. The main input shaft is connected to the first main shaft module, the auxiliary input shaft is coupled to the second drive module via a first clutch module, and the output shaft is connected to the output module.
G05B 13/04 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs
G05B 19/18 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique
G05D 3/12 - Commande de la position ou de la direction utilisant la contre-réaction
G06F 3/05 - Entrée numérique utilisant l'échantillonnage d'une quantité analogique à intervalles réguliers de temps
H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques
H02P 5/00 - Dispositions spécialement adaptées à la régulation ou la commande de la vitesse ou du couple d’au moins deux moteurs électriques
Provided is a torsion tester that is provided with a drive unit, which rotatably holds one end of a test specimen, and a reaction force unit, which is affixed to the other end of the test specimen, and that imparts a torsion load to the test specimen by means of rotating the one end of the test specimen by means of the drive unit. The drive unit is provided with: a servo motor; a first reduction gear that reduces the rotation of the servo motor by a first reduction ratio; a shaft that transmits the output of the first reduction gear; a clutch to the input shaft of which the shaft is affixed; a second reduction gear that reduces the rotation of the output shaft of the clutch by a second reduction ratio; a chuck that is rotatably supported; and a coupling means that switchably couples the shaft or the output shaft of the second reduction gear to the chuck. When the input shaft and the output shaft of the clutch are separated and the shaft is coupled to the clutch by means of the coupling means, operation is performed in a first mode, and when the input shaft and the output shaft of the clutch are coupled and the output shaft of the second reduction gear is coupled to the chuck by means of the coupling means, operation is performed in a second mode.
G01N 3/22 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de torsion
The present invention is provided with a first drive unit that is connected to the input shaft of a test specimen, and a second drive unit that is connected to the output shaft of the test specimen. The first and second drive units are provided with: a servo motor; a reduction gear that reduces and outputs the rotation of the output shaft of the servo motor; a chuck to which the input shaft or the output shaft of the test specimen is connected, and that transmits the output of the reduction gear to the input shaft or the output shaft of the test specimen; a torque sensor that transmits the output of the reduction gear to the chuck and detects the torque that the reduction gear outputs; and a tachometer that detects the rotational frequency of the chuck.
G01N 3/22 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de torsion
G01N 3/34 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires engendrés par des moyens mécaniques, p. ex. chocs de marteau
79.
ELECTRODYNAMIC ACTUATOR AND ELECTRODYNAMIC EXCITATION DEVICE
An electrodynamic actuator provided with: a substantially cylindrical fixed portion; a mobile portion that is at least partially accommodated inside an empty portion of the fixed portion and that is reciprocally driven in the axial direction of the fixed portion; and a plurality of mobile portion support mechanisms that laterally support the mobile portion so as to enable the reciprocal drive thereof in the axial direction of the fixed portion. The mobile portion support mechanisms are arranged around the periphery of the axis of the fixed portion at substantially equal intervals and each is provided with: a rail that is mounted to the side surface of the mobile portion and that extends in the axial direction of the fixed portion; and a runner block that is mounted to the fixed portion and that engages with the rail.
H02K 33/12 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits se déplaçant dans des directions opposées par alimentation alternée de systèmes à deux bobines
F16C 29/06 - Roulements à billes ou à rouleaux dans lesquels les billes ou rouleaux ne supportent la charge que sur une partie du chemin de roulement
B06B 1/04 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par électromagnétisme
F16F 15/02 - Suppression des vibrations dans les systèmes non rotatifs, p. ex. dans des systèmes alternatifsSuppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif
G01N 3/32 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires
G05D 3/00 - Commande de la position ou de la direction
The present invention comprises: a first drive shaft for rotating about a predetermined axis of rotation, one end of a workpiece being attached thereto; a second drive shaft for rotating about an axis of rotation, the other end of the workpiece being attached thereto; a load-imparting unit for supporting the first drive shaft, driving the first drive shaft to rotate, and imparting a torsional load to the workpiece; at least one first bearing for supporting the load-imparting unit rotatably about an axis of rotation; a rotational drive unit for driving the first drive shaft and the load-imparting unit to rotate in the same phase; and a torque sensor for detecting the torsional load. The load-imparting unit is provided with a frame having a cylindrical shaft part into which the first drive shaft is inserted, the frame being supported by the first bearing and supporting the first drive shaft within the shaft part. The torque sensor is configured so as to be mounted onto the portion of the first drive shaft that is inserted into the shaft part and so as to detect the torsional load of the portion.
G01N 3/22 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de torsion
G01M 13/02 - Mécanismes d’engrènementMécanismes de transmission
Provided is a material testing machine that measures the strain of a test piece by applying internal pressure and stress in the tube-axis direction to a tubular test piece. The material testing machine is provided with: a plurality of radial-direction-displacement detection units that detect displacement in the radial direction of the outer peripheral surface at the central region of the effective length in the tube-axis direction of the test piece; an axial-direction-displacement detection unit that detects displacement in the tube-axis direction of the outer peripheral surface at the central region of the effective length of the test piece; and a computation unit that computes the strain in the tube-axis direction and the circumferential direction at the central region of the effective length of the test piece on the basis of the detection results of the radial-direction-displacement detection units and the axial-direction-displacement detection unit. The plurality of radial-direction-displacement detection units are configured in a manner so as to each detect displacement in a different direction around the tube axis of the test piece.
G01N 3/08 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique par application d'efforts permanents de traction ou de compression
G01N 3/06 - Adaptations particulières des moyens d'indication ou d'enregistrement
There is provided a hydraulic system, including an oil tank storing operating oil, a hydraulic actuator, and a hydraulic pump which draws the operating oil from the oil tank and supplies the operating oil to the hydraulic actuator. The hydraulic system is provided with an operating oil separating unit which is located at a midway point of a main tube sending the operating oil from the hydraulic pump to the hydraulic actuator and which separates a part of the operating oil supplied from the hydraulic pump to return the part of the operating oil to the oil tank. A universal testing machine including the hydraulic system is also provided.
F16D 31/02 - Accouplements ou embrayages à fluide avec des groupes de pompage du type volumétrique, c.-à-d. dans lesquels passe un volume déterminé de liquide par tour de pompe utilisant des pompes à pistons ou à plongeurs travaillant dans des cylindres
83.
MOVING BELT MECHANISM FOR TRAVELLING TEST DEVICE, AND ENDLESS BELT
Disclosed are a moving belt mechanism for a travelling test device, and an endless belt. The moving belt mechanism for a travelling test device has an endless belt which is wound onto a meander correction roller for correcting meandering of said endless belt by being inclined about an axis perpendicular to the axis of rotation. An inner peripheral-side protective sheet for protecting substantially the entire inner peripheral surface of the endless belt is provided on the inner peripheral surface of the endless belt, and the endless belt has sufficient flexural rigidity so as not to deform under stress which is applied in such a way that the endless belt is bent due to distortion of the inner peripheral-side protective sheet.
Provided is a hydraulic system equipped with an oil tank storing hydraulic oil, a hydraulic actuator, and a hydraulic pump whereby hydraulic oil is pumped up from the oil tank and is supplied to the hydraulic actuator. This hydraulic system is such that at an intimidate location in a main pipeline feeding hydraulic oil from the hydraulic pump to the hydraulic actuator, a hydraulic oil flow dividing means is provided whereby part of the hydraulic oil supplied by the hydraulic pump is subjected to flow division and is returned to the oil tank. Furthermore, a general-purpose test device is provided which is equipped with this hydraulic system.
G01N 3/08 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique par application d'efforts permanents de traction ou de compression
F15B 11/16 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs
A suspension device (1) provided with an active shock-absorbing mechanism, the suspension device preventing vibration from being transmitted from a bearing (B) for supporting an axle (S) to the vehicle body (F). The active shock-absorbing mechanism (100) is provided with a speed sensor (400) for measuring the vibration of the vehicle body (F), an actuator (130) for driving the bearing (B) relative to the vehicle body (F), and a control unit for controlling, on the basis of the result of the measurement by the speed sensor (400), the drive of the actuator (130) so that the vehicle body (F) does not vibrate.
B60G 17/016 - Suspensions élastiques permettant d'ajuster les caractéristiques des ressorts ou des amortisseurs de vibrations, de réguler la distance entre la surface porteuse et la partie suspendue du véhicule ou de bloquer la suspension pendant l'utilisation pour s'adapter aux conditions variables du véhicule ou du terrain, p. ex. en fonction de la vitesse ou de la charge les moyens de régulation comportant des éléments électriques ou électroniques caractérisés par leur réponse à un mouvement ou une condition donnés ou à l'action du conducteur, lors du déplacement du véhicule
B60G 17/019 - Suspensions élastiques permettant d'ajuster les caractéristiques des ressorts ou des amortisseurs de vibrations, de réguler la distance entre la surface porteuse et la partie suspendue du véhicule ou de bloquer la suspension pendant l'utilisation pour s'adapter aux conditions variables du véhicule ou du terrain, p. ex. en fonction de la vitesse ou de la charge les moyens de régulation comportant des éléments électriques ou électroniques caractérisés par le type ou l'agencement des capteurs
B61F 5/24 - Moyens pour amortir ou minimiser les mouvements de roulis, lacet, galop ou tangage des châssis
F16F 15/02 - Suppression des vibrations dans les systèmes non rotatifs, p. ex. dans des systèmes alternatifsSuppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif
An antivibration apparatus of the present invention has a first frame and a second frame supported movably relative to the first frame so that any vibration is not transmitted to the first frame. The apparatus is further provided with a velocity measuring means that is capable of sending velocity signals representing the velocity of the first frame and an actuator that drives the second frame relative to the first frame in response to the velocity signals. The actuator moves the second frame at the velocity of the first frame but in the opposite direction.
F16F 15/02 - Suppression des vibrations dans les systèmes non rotatifs, p. ex. dans des systèmes alternatifsSuppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif
G01P 3/52 - Dispositifs caractérisés par l'utilisation de moyens électriques ou magnétiques pour mesurer une vitesse linéaire en mesurant l'amplitude du courant ou de la tension engendrés
87.
HYDRAULIC ACTUATOR AND HYDRAULIC VIBRATION TEST DEVICE
A hydraulic actuator provided with a hydraulic pump and a hydraulic cylinder unit. The hydraulic pump has a first suction and discharge opening and a second suction and discharge opening and can be reversely operated. The hydraulic cylinder unit is provided with a piston, a sleeve having an inner space partitioned by the piston into a first pressure chamber and a second pressure chamber, and a piston rod connected to the piston and having a front end projecting to the outside of the sleeve. The hydraulic actuator is provided with first piping for interconnecting the first pressure chamber and the first suction and discharge opening, and also with second piping for interconnecting the second pressure chamber and the second suction and discharge opening. When the hydraulic piston is reversely operated, hydraulic pressure is alternately applied to the first and second pressure chambers to vertically move the piston. The hydraulic actuator is further provided with a bypass pipe for interconnecting the first and second piping and also with an accumulator provided in the middle of the bypass pipe and applying back pressure to the first and second pressure chambers. A vibration test device equipped with the hydraulic actuator is also provided.
A vibration testing device which allows to reduce a space for performing a vibration test and to vertically vibrate the bearing of a vehicle without using a vibration mechanism of large output. The vibration testing device comprises a bearing unit which rotatably supports the axle of the truck of a vehicle an axle drive mechanism which rotates the axle, a vertical vibration unit which vertically vibrates the bearing unit, an air cylinder mechanism which applies an upward load to the bearing unit, and a reaction frame which presses the truck from above.
A vibration testing system which can perform vibration test by vibrating a work with a long period and a large acceleration amplitude. A direct drive converter in the vibration testing system comprises a direct drive converter frame fixed to the frame of the vibration testing system, an input shaft pivotally supported rotatably for the direct drive converter frame and coupled with the rotating shaft of a servo motor, a square thread formed at least partially on the outer circumferential surface of the input shaft, a roller having a tubular surface abutting against the flank of the square thread, a roller unit having a rotating shaft embedded therein for pivotally supporting the roller rotatably through a cylindrical roller bearing which is substantially entirely contained in the groove of the square thread, a rail fixed to the direct drive converter frame and sliding the roller unit straight along the axial direction of the square thread, and an output shaft coupled with the roller unit directly or indirectly and supporting a movable table at the upper end thereof wherein the roller screwing together with the square thread moves along the groove of the square thread as the input shaft rotates, and the output shaft interlocked with straight movement of the roller unit along the rail also moves straight to move the movable table up and down.
A vertical impact test device has an impact block, a movable table, drive means for driving the movable table downward toward the impact block to make a sample body collide with the impact block, attitude holding means for holding the attitude of the sample body by holding the sample body between the attitude holding means and the movable table, and control means for causing the movable table to descend and controlling the attitude holding means so that the attitude holding means retreats immediately before the sample body collides with the impact block. A horizontal impact test device has a platform car on which a sample body is mounted and which can move on a base, an arm capable of making contact with the platform car, drive means for driving the arm, an impact plate fixed on the platform car, and an impact member mounted on the base so as to collide with the impact plate. When driven, the arm makes contact with the platform car to drive the platform car, and the speed at which the arm is driven is reduced immediately before the impact plate collides with the impact member. This causes the platform car to separate from the arm and move by inertia toward the impact member.
G01N 3/30 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant une force unique et brève
An electrodynamic vibration testing system for shaking a specimen comprises a fixed section, a movable section which can reciprocate in a predetermined direction with respect to the fixed section, a voice coil motor for driving the movable section, a table attached to the movable section for fixing the specimen, an air spring which supports the movable section to the fixed section from below, and a reaction plate attached to the fixed section for sandwiching the specimen between the table, and the reaction plate.
Provided is an electrodynamic vibration test equipment which comprises: first and second electrodynamic actuators that can vibrate a table in first and second directions orthogonal to each other; a first coupling means for enabling the table to slide in the second direction with respect to the first electrodynamic actuator; and a second coupling means for enabling the table to slide in the first direction with respect to the second electrodynamic actuator. Each actuator can slide with respect to the table in the direction orthogonal to the vibration direction of the actuator, so that even when the table is vibrated by one of the actuators, since the table slides with respect to the other actuator, the other actuator is not displaced and the vibration direction of the other actuator is not changed. Thus, crosstalk does not occur, so that the electrodynamic vibration test equipment vibrates a table in orthogonal two-axis directions or three-axis directions.
Provided is a fatigue testing device which can acquire such an amplitude of the angle of an axis of rotation of a servomotor automatically and quickly as to be set when a test is done with the fluctuation widths of a force to be applied to a work being adjusted constant. The fatigue testing device comprises deformation detecting means for measuring the deformation of the work, force measuring means for measuring the magnitude of the force to be applied to the work, spring constant calculating means for calculating the spring constant of the work, while increasing the amplitude of the angle of the rotation axis of the servomotor gradually, on the basis of the measurement results of the deformation detecting means and the force measuring means, and control means for controlling the servomotor on the basis of the spring constant calculated by the spring constant calculating means, so that the amplitude of the magnitude of the force to be applied to the work may be a predetermined magnitude.
G01N 3/32 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires
G01N 3/34 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires engendrés par des moyens mécaniques, p. ex. chocs de marteau
Provided is a fatigue test device that makes it possible to calculate a target waveform for a servo amplifier that enables to give a desired operation to works. The fatigue test device converts input waveform data for at least one discrete period to a fluctuation waveform spectrum of a deformation amount of the works and generates initial spectrum data; multiplies each spectrum component of the initial spectrum data by a correction coefficient to generate first spectrum data and obtains the first spectrum data; carries out a reverse conversion of the first spectrum data to obtain test waveform data and imposes a load on test works based on the test waveform data; obtains output waveform data to show fluctuation of a deformation amount of the test works on which the load is imposed; converts the output waveform data to a fluctuation waveform spectrum of the deformation amount of the test works to obtain second spectrum data; and revises the correction coefficient based on each frequency spectrum component of the input spectrum data and a frequency spectrum component corresponding to the second spectrum data.
G01N 3/32 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires
G01N 3/34 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires engendrés par des moyens mécaniques, p. ex. chocs de marteau
It is an object to provide a fatigue test device that enables a speed-amplitude constant sweep test in a wide frequency band including a high frequency region. The object has been attained by a fatigue test device comprised of a speed detection means that detects a deformation speed of works and a control means that, based on the detected result, controls a servo motor to set the ratio of the deformation speed to a predetermined speed in a predetermined range regardless of a period to repeatedly impose a load on the works whenever the period to impose the load changes. Further, it is an object to provide a fatigue test device that enables an acceleration amplitude constant sweep test in a wide frequency band including a high frequency region. The object has been attained by a fatigue test device comprised of an acceleration detection means that detects a deformation acceleration of works and a control means that, based on the detected result, controls a servo motor to set the ratio of the deformation acceleration to a predetermined acceleration in a predetermined range regardless of a period to repeatedly impose a load on the works whenever the period to impose the load changes.
G01N 3/34 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires engendrés par des moyens mécaniques, p. ex. chocs de marteau
A vibration test apparatus for vibrating a table on which a test piece is secured. The apparatus comprises first and second actuators for vibrating a table in mutually perpendicular first and second directions, first coupling means for enabling the table to slide in the second direction with respect to the first actuator, and second coupling means for enabling the table to slide in the first direction with respect to the second actuator. Preferably, the apparatus further comprises a third actuator for vibrating the table in a third direction perpendicular to both the first and second directions and third coupling means for coupling the table to the third actuator slidably in the first and second directions, and the first and second coupling means couple the table to the first and second actuators slidably in the third direction.
In a general-purpose test device and a linear actuator which drive a cross head by a servo motor and a feed screw mechanism, the servo motor and a linear guide of the feed screw mechanism are fixed to a single support plate. It is preferable that a drive shaft of the servo motor be coupled to the feed screw by a rigid coupling or a semi-rigid coupling. Moreover, in a twist test device which applies a twist load to a test piece by the servo motor and a speed reduction mechanism, both of the servo motor and the speed reduction mechanism are fixed to a first support member as a single member. It is preferable that a drive shaft of the servo motor be coupled to an input shaft of the speed reduction mechanism by the rigid coupling or the semi-rigid coupling.
G01N 3/34 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires engendrés par des moyens mécaniques, p. ex. chocs de marteau
