METHOD OF MANUFACTURING STAKING ASSEMBLY, METHOD OF MANUFACTURING HUB UNIT BEARING, STAKING DEVICE, STAKING ASSEMBLY, AND METHOD OF MANUFACTURING VEHICLE
An application position of a processing force directed radially outward is continuously changed in the circumferential direction of a cylindrical portion (25) while applying the processing force to a part of the cylindrical portion (25) of a hub main body (21) in the circumferential direction. An application position of a processing force directed radially inward is continuously changed in the circumferential direction of a staking portion intermediary body (41) while applying the processing force to a part of the staking portion intermediary body (41) in the circumferential direction.
B21D 39/03 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of sheet metal otherwise than by folding
B21K 1/05 - Making machine elements cages for bearings
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
Provided is a rolling bearing with which it is possible to suppress both white structure peeling and surface starting point peeling without performing carburization or carbonitriding treatment that would lead to a strain on the environment and an increase in manufacturing costs. This rolling bearing (radial ball bearing (1)) comprises a pair of steel raceway rings (outer ring (3) and inner ring (5)) and a plurality of rolling elements (balls (6)) rollably held between the pair of raceway rings. The ratio of lower bainite structure in the steel in raceway rings is 35-90% (inclusive), the ratio of residual austenite structure is 5-40% (inclusive), and the remainder is martensite structure and carbide.
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
3.
FILTER FOR INHIBITING DEGRADATION OF EDIBLE OILS, AND METHOD FOR PRODUCING SAME
A cooking oil degradation suppression filter that can effectively and easily suppress degradation of cooking oil without using a filter aid or the like and can prevent a decrease in the taste of food caused by separation of a degradation suppression agent. The cooking oil degradation suppression filter includes fiber (10) and at least one degradation suppression agent (13) selected from a carbonate, a silicate, a tartrate, an oxide, a hydroxide, an alginate, and a phosphate.
A ball screw device having a screw shaft, a nut, a plurality of balls, a carrier constituting a planetary reduction mechanism, a rolling bearing for rotatably supporting the carrier, where the screw shaft includes a screw portion having a spiral-shaped shaft-side ball screw groove on an outer circumferential surface thereof, and a fitting shaft portion, the carrier is fixed to the fitting shaft portion such that relative rotation is not possible, an inner ring raceway of the rolling bearing is formed directly on an outer circumferential surface of the carrier.
TOKYO METROPOLITAN INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE. (Japan)
Inventor
Kobayashi, Hideki
Masuda, Toshiki
Abstract
A wheel structure 1 includes: a drive wheel 20 which is attached to a main body portion 10 in a rotatable manner about a rotation axis Axr; a vehicle body attachment portion 30 which is capable of moving relative to the main body portion 10 along a first axis Ax1 perpendicular to the rotation axis Axr; and a link mechanism portion 40. The link mechanism portion 40 includes: a first link member 41 having a first connecting portion 41a which is connected to the main body portion 10 in a rotatable manner about a second axis Ax2 perpendicular to the first axis Ax1 and a second connecting portion 41b to which a driven wheel 50 is rotatably attached; and a second link member 42 having a fourth connecting portion 42a which is connected to a third connecting portion 41c located between the first connecting portion 41a and the second connecting portion 41b of the first link member 41 in a rotatable manner about a fourth axis Ax4 parallel to the second axis Ax2, and a fifth connecting portion 42b which is connected to the vehicle body attachment portion 30 in a rotatable manner about a fifth axis Ax5 parallel to the second axis Ax2.
B62D 61/10 - Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with more than four wheels
6.
METHOD FOR MANUFACTURING BEARING ELEMENT, METHOD FOR MANUFACTURING CYLINDRICAL MEMBER, BEARING, METHOD FOR MANUFACTURING MACHINE DEVICE, METHOD FOR MANUFACTURING VEHICLE, MACHINE DEVICE, AND VEHICLE
The method for manufacturing a bearing element includes: a first step of preparing a workpiece that has undergone upsetting processing; a second step of forming a recess (DP1), a flange (FR1), and a first axial surface (AX1) on the workpiece through one or two times of plastic processing; and a third step of punching a bottom part of the recess (DP1) of the workpiece. The recess (DP1) has an axial depth with respect to the first axial surface (AX1). The flange (FR1) extends radially outward. The first axial surface (AX1) formed in the second step provides one end surface of the bearing element. The flange (FR1) formed in the second step has a surface height that is substantially the same as or greater than the first axial surface (AX1) at the radially outer end.
A ball screw device according to the present disclosure reduces an amount of leaked grease. The ball screw device comprises: a screw shaft; a nut which has a through hole penetrating therethrough in the axial direction parallel to the screw shaft and in which the screw shaft is inserted into the through hole; and a plurality of balls which are disposed between the nut and the screw shaft. The inner peripheral surface of the nut includes a body inner peripheral surface that is provided with an inner peripheral raceway surface on which the balls roll and a reduced-diameter inner peripheral surface that is disposed closer to the end of the nut in the axial direction in comparison to the body inner peripheral surface. The diameter at the reduced-diameter inner peripheral surface is smaller than that at the body inner peripheral surface.
The present invention provides a linear motion guide device provided with a side seal to provide a seal between a slider and a guide rail. The side seal has a retaining plate disposed on the slider side, a cover, and a sealing member disposed between the cover and the retaining plate along the length direction of the guide rail. The sealing member has a body sandwiched between the retaining plate and the cover and a lip section extending from the body toward the guide rail side. In a state in which the lip section is in abutment against the guide rail, a coupling section between the lip section and the body at a predetermined location in the width direction of the guide rail is apart from the guide rail farther than a coupling section between the lip section and the body at a location other than the predetermined location.
A rolled thread screw includes: a screw part having, on an outer circumferential part of the screw part, thread crests and thread grooves disposed alternately along an axial direction of the rolled thread screw; and a columnar part adjoining at least one of both sides of the screw part in the axial direction. An axial end surface of the columnar part is provided with: a first concave surface concave in the axial direction; a second concave surface positioned to an outer circumference of the first concave surface and being concave in the axial direction; and a salient part positioned on a boundary between the first concave surface and the second concave surface and projecting further than a bottom of the first concave surface and a bottom of the second concave surface, the salient part extending in an arc-like shape along a circumferential direction of the columnar part as viewed in the axial direction.
A ball screw device according to the present disclosure comprises a nut, a screw shank, a plurality of balls, and at least one piece. The outer circumferential surface of the screw shank is provided with at least one recess that is recessed radially inward and that accommodates the piece therein. The recess has a first bottom surface that faces radially outward. At least a portion of the first bottom surface is formed to be a flat surface. The piece has: a second bottom surface that abuts the first bottom surface; a circulation groove surface which is recessed radially outward from the second bottom surface and which forms an internal space that constitutes a circulation path; a bottom opening that opens the circulation path radially inward; a pair of piece-side openings that open the circulation path in the circumferential direction and that connect the circulation path and a raceway; and a pair of tongues that guides, radially inward, the balls that have entered the circulation path from the raceway. In the first bottom surface, a portion that closes the bottom opening serves as a rolling surface for the balls that move along the circulation path.
[Problem] To provide a clutch device that is incorporated between a drive source and a driven body and is capable of preventing transmission of impact torque from the driven body to the drive source. [Solution] A clutch device 1 comprises a first rotating member 2, a second rotating member 3, a third rotating member 4, an engaging element 5, and a flywheel 6 fixed to the first rotating member 2. When torque is input to the second rotating member 3, a steady rotation state is brought about in which the first rotating member 2 and the flywheel 6 rotate integrally with the second rotating member 3, the third rotating member 4, and the engaging element 5, while the torque is transmitted between the second rotating member 3 and the third rotating member 4. When the torque acting on the third rotating member 4 rapidly increases in the steady rotation state, a torque transmission regulation state is brought about in which the torque transmitted between the second rotating member 3 and the third rotating member 4 is reduced or lost, on the basis of inertia force acting on the flywheel 6.
F16D 41/08 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
F16D 43/20 - Internally controlled automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
F16D 63/00 - Brakes not otherwise provided forBrakes combining more than one of the types of groups
13.
BEARING DIAGNOSTIC DEVICE AND BEARING DIAGNOSTIC METHOD
The present invention provides a bearing diagnostic device and a bearing diagnostic method that can estimate the occurrence of flaking. The present invention is provided with: an envelope processing unit that executes envelope processing on a vibration signal acquired by a vibration sensor; a frequency analysis processing unit that converts a time domain signal into a frequency domain signal including the signal strength for each frequency by executing fast Fourier transform processing on the time domain signal after the envelope processing; and a determination processing unit that estimates the occurrence of flaking on the basis of a signal strength n2 of an even multiple wave of a damage frequency caused by damage that has occurred on at least the orbital plane of the bearing.
[Problem] To realize a structure, with which vehicle height can be smoothly adjusted. [Solution] A controller 51 has a function of controlling an electric motor 3 such that if the vehicle height is to be adjusted, in a case in which the direction of a rotational torque reversely input into a clutch output member 11 is the same as the direction in which a clutch input member 10 is rotated, and the rotational speed of the clutch input member 10 is in a rotational speed range equal to or less than a prescribed threshold value at which a jerking phenomenon is likely to occur, the electric motor can quickly pass through the rotational speed range thereof.
F16D 41/10 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
[Problem] To provide a structure of a reverse input blocking clutch that is capable of restricting axial movement of an engagement element with respect to an output member while reducing the number of components. [Solution] The present invention comprises a pressed member 2, an input member 3, an output member 4, an engagement element 5, and a holding member 6. The holding member 6 has a first spacer part 38, a second spacer part 39, and a connection part 40 that connects the first spacer part 38 and the second spacer part 39. The engagement element 5 is attached to the output member 4 in a state in which the engagement element 5 is disposed between the first spacer part 38 and the second spacer part 39 in the axial direction of a pressed surface 7, so that axial movement of the engagement element 5 with respect to the output member 4 is restricted.
[Problem] To achieve a structure that is unlikely to generate wear in a coupling structure having a coupling part formed by screwing a male screw part and a female screw part. [Solution] This coupling structure comprises: a first member having a male screw part on an outer peripheral surface thereof; a second member having a female screw part that is screwed with the male screw part on an inner peripheral surface thereof; a rotation prevention member which is laid between the first member and the second member and prevents relative rotation between the first member and the second member; and an elastic member which imparts axial elasticity between the first member and the second member.
F16B 39/10 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by a plate or ring immovable with regard to the bolt or object
F16B 39/24 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
F16B 7/18 - Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
[Problem] To provide a structure capable of miniaturizing a suspension device. [Solution] In order to adjust a height of a vehicle body B from a ground contact surface of a wheel W to a desired height in a state where a rotational torque is reversely input to a clutch output member 11, a controller 51 includes such a function that, when a direction in which a clutch input member 10 is to be rotationally driven is opposite to a direction of the rotational torque reversely input to the clutch output member, after rotationally driving the clutch input member 10 in the direction of the rotational torque reversely inputted to the clutch output member for an extremely short predetermined time, the clutch input member 10 is rotated in a direction opposite to the direction of the rotational torque reversely inputted to the clutch output member.
F16D 41/10 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
A retainer that suppresses retainer sound, includes a main body portion, a plurality of pockets provided in a circumferential direction, and penetrates through the main body portion in a radial direction, and a retaining surface that faces a ball, and forms a C shape when viewed from the radial direction. The retaining surface includes a C-shaped outer circumferential corner portion, a C-shaped inner circumferential corner portion, a first retaining surface arranged in a first rotational direction with respect to the ball, and a second retaining surface arranged in a second rotational direction with respect to the ball. The first retaining surface extends along a first spherical surface obtained by rotating a first virtual circle around a virtual line passing through an axial center and a center of the ball. The second retaining surface extends along a second spherical surface obtained by rotating a second virtual circle around the virtual line.
A retainer that suppresses retainer sound, includes a main body portion, a plurality of pockets provided in a circumferential direction, and penetrating through the main body portion in a radial direction, and a retaining surface facing a ball, and forming a C shape when viewed from the radial direction. The retaining surface includes a C-shaped outer circumferential corner portion, a C-shaped inner circumferential corner portion, a first retaining surface arranged in a first rotational direction with respect to the ball, and a second retaining surface arranged in a second rotational direction with respect to the ball. The first retaining surface extends along a first spherical surface obtained by rotating a first virtual circle around a virtual line passing through an axial center and a center of the ball. The second retaining surface extends along a second spherical surface obtained by rotating a second virtual circle around the virtual line.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A ball screw device includes a nut having an internal thread and two outer peripheral raceway surfaces, a screw shaft having an external thread and two inner peripheral raceway surfaces, a plurality of balls arranged on two rolling paths, and two circulation components provided at one end and the other end of the nut to circulate the balls. The internal thread and the external thread hold the balls. The nut has a cylindrical shape and includes a cylindrical body having the external thread and the outer peripheral raceway surfaces, and two return paths penetrating the cylindrical body in an axial direction parallel to an axis of the screw shaft. Each of the circulation components includes a main body fixed to the cylindrical body of the nut, two communication paths penetrating the main body and communicating the two rolling paths and the two return paths, a communication path partition wall between the two communication paths so as to partition the two communication paths, and two tongues protruding from the main body to the rolling paths.
This linear motion guide device has a side seal provided with a seal member for creating a seal between a slider and a guide rail, and a connection structure for connecting the seal member and the slider. The connection structure is composed of: a metal member provided to the side seal, the metal member being provided with a fitting hole; and an elastic member provided with a protrusion that fits into the fitting hole. The fitting hole has a minimum-inside-diameter part and a maximum-inside-diameter part. In a state in which the fitting hole and the protrusion have been fitted together, the distal-end side of the protrusion is disposed on the radially inner side of the maximum-inside-diameter part and is positioned further radially outward than the minimum-inside-diameter part.
A reverse input blocking clutch (1) is provided with: an input member (2); an output member (3); and an engagement element (5) that engages with an input-side engagement part (25) of the input member (2) and an output-side engagement part (35) of the output member (3). The input-side engagement part (25) has a first contact part (P1) and a second contact part (P2) that come into contact with the engagement element (5). The output-side engagement part (35) has output-side contact parts (Q1, Q2) that come into contact with the engagement element (5). Regarding a second radial direction (D2), a distance (MI1) between the first contact part (P1) and a first reference line (L1) is greater than a distance (MO1) between the output-side contact part (Q1) and the first reference line (L1). A distance (MI2) between the second contact part (P2) and the first reference line (L1) is smaller than a distance (MO2) between the output-side contact part (Q2) and the first reference line (L1).
F16D 41/08 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
F16D 63/00 - Brakes not otherwise provided forBrakes combining more than one of the types of groups
F16D 65/22 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart
Provided is a front bearing device comprising: a rolling bearing (20) that rotatably supports a spindle (60) with respect to a housing (50); and an outer ring spacer (40) and an outer ring retainer that are fitted into the housing (50) to position an outer ring (22) of the rolling bearing (20) in the axial direction. Lubricant (G) is supplied to the inside of the rolling bearing (20) through a lubricant supply path (52). One side surface (22b) of the outer ring (22) is offset to the axial center side relative to a side surface (21b) of an inner ring (21) of the rolling bearing (20), and an opening (41) penetrating the outer ring spacer (40) in the radial direction is formed at an end surface (43) of the outer ring spacer (40) abutting the offset side surface (22b).
F16C 33/66 - Special parts or details in view of lubrication
B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
B23Q 11/12 - Arrangements for cooling or lubricating parts of the machine
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
Each of column portions has a first branch portion and a second branch portion bifurcated in the circumferential direction at one end portion in the axial direction, and a grease storage groove between the first and second branch portions, a tip-end portion of the first branch portion of one column portion and a tip-end portion of the second branch portion of an adjacent column portion are connected in the circumferential direction, and a tip-end portion of the second branch portion of the one column portion and a tip-end portion of the first branch portion of another adjacent column portion are connected in the circumferential direction.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
A wheel support rolling bearing includes an inner ring; an outer ring; and a plurality of needle rollers. The inner ring includes a first raceway surface facing the outer ring in a radial direction, and a second raceway surface and a third raceway surface facing the outer ring in an axial direction. The second raceway surface is located on an inner side in the axial direction with respect to the outer ring, and the third raceway surface is located on an outer side in the axial direction with respect to the outer ring. The plurality of needle rollers include a plurality of first needle rollers disposed between the first raceway surface and the outer ring, a plurality of second needle rollers disposed between the second raceway surface and the outer ring, and a plurality of third needle rollers disposed between the third raceway surface and the outer ring.
A method for manufacturing a bearing ring member includes an inversion step of deforming a workpiece having an annular shape by sandwiching the workpiece between a punch disposed on a first side in a predetermined direction and a die disposed on a second side. The punch has a first R surface formed in a circular arc shape. The die has a second R surface formed in a circular arc shape, and a tapered surface inclined with respect to the predetermined direction. The inversion step includes a first step of deforming the workpiece using the punch and the die in a state where the first R surface and the second R surface are in contact with the workpiece, and a second step of deforming the workpiece using the punch and the die in a state where the first R surface and the tapered surface are in contact with the workpiece.
B21D 53/10 - Making other particular articles parts of bearingsMaking other particular articles sleevesMaking other particular articles valve seats or the like
In the present invention, a side seal (50) has a seal member (41) that is in sliding contact with a guide rail (3), a first holding member (11) that is attached to a slider (20) to a greater extent than the seal member (41) and that holds the seal member (41), and a second holding member (12) that sandwiches the seal member (41) together with the first holding member (11). The first holding member (11) has a plurality of fitting projections (22) that protrude toward the second holding member (12), the second holding member (12) has a plurality of fitting holes (23) into which the plurality of fitting projections (22) are fitted, and the fitting projections (22) are fitted into the fitting holes (23), whereby the side seal (50) is integrated. The first holding member (11) is flexible, and the contact pressure between the fitting projections (22) and the fitting holes (23) increases with the deformation of the first holding member (11).
A method for manufacturing a bearing ring member includes an inversion step of sandwiching a workpiece including a workpiece body portion having an annular shape between a punch disposed on a first side in an axial direction and a die disposed on a second side opposite to the first side, and deforming the workpiece such that the workpiece body portion has a cylindrical shape. The inversion step includes, in the following order, a first step of deforming the workpiece using the punch and the die in a state where no sliding occurs between the workpiece and the die, and a second step of deforming the workpiece using the punch and the die in a state where a sliding occurs between the workpiece and the die.
B21D 53/10 - Making other particular articles parts of bearingsMaking other particular articles sleevesMaking other particular articles valve seats or the like
29.
MODULAR GRIPPING FINGER SYSTEM, GRIPPING FINGER, MODULAR GRIPPER SYSTEM AND GRIPPER FOR A ROBOT
DEUTSCHES ZENTRUM FÜR LUFT- UND RAUMFAHRT E.V. (Germany)
NSK LTD. (Japan)
Inventor
Neumann, Oliver
Friedl, Werner
Roa-Garzon, Maximo
Teshigawara, Seiichi
Pan, Siyi
Abstract
The invention relates to a modular gripping finger system for a robot, the gripping finger system comprising at least one universal actuator module type and different kinematic element types for assembling finger modules (104), wherein actuator modules (102) of the at least one universal actuator module type can be coupled to finger modules (104) assembled from kinematic elements (106, 108, 110, 112), to form complete actuated gripping fingers (100). The invention also relates to a gripping finger (100) for a robot, to a modular gripping system for a robot, and to a gripper for a robot.
In this insulating bearing, a mill scale surface is formed on at least a part of a contact surface of a bearing ring on which a resin layer is formed, the contact surface being in contact with the resin layer. Alternatively, instead of the mill scale surface, the surface roughness in the circumferential direction is roughened to Ra 3.2 μm or more or Sa 3.2 μm or more. As a result, the relative sliding between an outer ring and inner ring and an insulating film in the insulating bearing coated with the insulating film and the damage between the two surfaces due to the relative sliding can be prevented, and the deterioration of bearing accuracy and the occurrence of electrolytic corrosion can be suppressed for a longer period of time.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 35/077 - Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
The present invention simplifies a configuration equipped with a differential omnidirectional movement mechanism, and reduces manufacturing costs. This drive wheel comprises: a first drive mechanism 22A including a first drive shaft 22Ac; a second drive mechanism 22B including a second drive shaft 22Bc; a first input shaft 25A and a second input shaft 25B on the same axis; a first output shaft 40A and a second output shaft 40B; a first transmission gear mechanism 13A for transmitting the rotational force of the first drive shaft to the first output shaft through the first input shaft; a second transmission gear mechanism 13B for transmitting the rotational force of the second drive shaft to the second output shaft through the second input shaft; an axle 37 to which a wheel 15 is fixed; a first conversion gear mechanism 14A for transmitting the rotational force of the first output shaft to the axle; a second conversion gear mechanism 14B for transmitting the rotational force of the second output shaft to the axle; and a turning shaft 35 for turning the wheel through the axle. The second transmission gear mechanism includes a gear that is fixed to the second input shaft and loosely fitted around the first input shaft.
F16H 1/06 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
B62B 3/00 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor
B62D 7/14 - Steering linkageStub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
F16H 1/12 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
32.
MAGNETOSTRICTIVE TORQUE SENSOR AND METHOD FOR MANUFACTURING MAGNETOSTRICTIVE TORQUE SENSOR
A magnetostrictive torque sensor, configured to be mounted around a rotating shaft having a magnetostrictive effect and to detect torque applied to the rotating shaft, is provided with a support member having a cylindrical portion through which the rotating shaft is inserted; a flexible substrate arranged around an outer periphery of the cylindrical portion and having a plurality of coils composed of wiring patterns; and a tightening member that tightens the flexible substrate toward an outer peripheral surface of the cylindrical portion. The tightening member may be a tubular heat-shrinkable tube that shrinks upon heating. A method for manufacturing the magnetostrictive torque sensor includes placing the flexible substrate around the outer periphery of the cylindrical portion of the support member and placing the heat-shrinkable tube around an outer periphery of the flexible substrate; and tightening the flexible substrate toward the outer peripheral surface of the cylindrical portion by heating the heat-shrinkable tube to shrink the heat-shrinkable tube.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
33.
Current detection device, motor control device, and electric power steering device
A current detection device includes a current detection unit configured to detect current flowing through a switching element of a lower-side arm; a correction value calculation unit configured to calculate an offset correction value, based on a detection value of the current detected by the current detection unit in a period during which the switching element off during PWM control, and to hold and update the calculated offset correction value; and a correction unit configured to correct, by the offset correction value held by the correction value calculation unit, the detection value of the current detected by the current detection unit in a period during which the switching element is on. The correction value calculation unit is configured to not update the offset correction value in a case where a duty ratio of the PWM control is equal to or less than a duty ratio lower limit value.
H02P 1/30 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by progressive increase of frequency of supply to primary circuit of motor
B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
H02P 1/52 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor by progressive increase of frequency of supply to motor
H02P 3/00 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
The present invention addresses the problem of how to provide a differential omnidirectional movement mechanism while simplifying the configuration thereof. A drive wheel 110 comprises: a first input shaft 25A and a second input shaft 25B disposed coaxially; a first output shaft 40A disposed on a different axis from that of the first input shaft 25A and the second input shaft 25B; a first transmission mechanism 13A including a first transmission drive gear 38A and a main transmission driven gear 39 in order to transmit the rotational force of the first input shaft 25A to the first output shaft 40A; a second transmission mechanism 13B that, in order to transmit the rotational force of the second input shaft 25B to the first output shaft 40A, includes a second transmission drive gear 38B having the same number of teeth as the first transmission drive gear 38A, a main transmission driven intermediate gear 39B for meshing with the second transmission drive gear 38B and thereby reversing the direction of rotation, and a main transmission driven gear 39; a freely rotatable main shaft 50 to which a wheel 15 is connected; a first conversion gear mechanism 14A for transmitting the rotational force of the first output shaft 40A to the main shaft 50; and a pivot shaft 35 that pivotally supports the wheel 15 via the main shaft 50.
F16H 1/06 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
B62B 3/00 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor
B62D 9/00 - Steering deflectable wheels not otherwise provided for
F16H 1/12 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
35.
STATE DETERMINATION DEVICE AND STATE DETERMINATION METHOD FOR BALL SCREW
Provided are a state determination device and state determination method for a ball screw, by which noise resistance can be improved. The present invention comprises: a vibration information generation unit (201) that, on the basis of a vibration signal acquired by a vibration sensor (21) during operation of a ball screw, generates vibration information indicating a relationship between a nut position of the ball screw and a frequency-vibration level characteristic that changes in accordance with the nut position; and a determination unit (202) that executes a state determination process for the ball screw on the basis of first vibration information generated on the basis of the vibration signal acquired in a first period and second vibration information acquired in a second period after the first period.
Provided to a bearing body portion of this rolling bearing is a display of lifespan information that indicates flaking life with an inclusion as an initiation point, or a display of corresponding information that corresponds to the flaking life. The inclusion is included in the rolling bearing. The flaking life is the lifespan of the rolling bearing predicted on the basis of the size of the inclusion.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
37.
GROOVE DIAMETER MEASUREMENT METHOD AND GROOVE DIAMETER MEASUREMENT DEVICE FOR BEARING, MANUFACTURING METHOD FOR ROLLING BEARING, MACHINE, AND MANUFACTURING METHOD FOR VEHICLE
A ring-shaped member (25) having a raceway groove (25d) formed in the inner circumferential surface or the outer circumferential surface thereof is prepared. The ring-shaped member (25) is supported by using a support member (33). The central axis of the ring-shaped member (25) is oriented sideways, and the support member (25) makes contact with the groove bottom surface of the raceway groove (25d) to support the gravity of the ring-shaped member (25). The height position of a movable probe (43) is measured while the movable probe (43) is on the groove bottom surface. The groove diameter of the raceway groove (25d) is calculated on the basis of the result of the measurement of the height position of the movable probe (43).
[Problem] To achieve a structure capable of suppressing rattling of an input member. [Solution] Leaf springs 6 each have: two sandwiched parts 43 that are arranged on both sides of an input-side engagement part 14 relative to a first direction which is a direction of the movement of a pressing surface 33 toward and away from a pressed surface 7, and to a second direction which is orthogonal to the central axis of an input member 3, and that are elastically held between the input-side engagement part 14 and an input-side engaged part 34; and a base part 44 that connects the two sandwiched parts 43 to each other.
F16D 41/08 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
39.
BEARING REMAINING LIFE DIAGNOSIS METHOD AND BEARING REMAINING LIFE DIAGNOSIS DEVICE
The present invention suitably predicts a remaining life of a bearing. Provided is a bearing remaining life diagnosis method that predicts the remaining life of a rolling bearing which is for use in a rotary machine and which has inner and outer bearing rings and a rolling body between the bearing rings, said method comprising: a step for calculating the most recent estimated flaking length; and a step for calculating the most recent remaining life of the bearing on the basis of the most recent flaking length of a bearing ring. The step for calculating the most recent estimated flaking length includes a step for calculating the maximum rolling body load, a step for calculating the maximum contact surface pressure from the maximum rolling body load, and a step for calculating the most recent estimated flaking length of the bearing ring from the maximum contact surface pressure of the bearing ring.
Provided are: a rolling bearing that is used in a highly clean environment, can prevent corrosion of grease used as a lubricating oil, and can reduce the amount of dust generated not only before but also after decontamination by hydrogen peroxide or the like; and an actuator provided with this rolling bearing. The rolling bearing (1) is filled with grease containing a base oil and a thickener. The base oil contains a fluorine oil, and the thickener contains a polytetrafluoroethylene resin powder. Further, the worked penetration of the grease is 200 to 295.
C10M 169/02 - Mixtures of base-materials and thickeners
C10M 107/38 - Lubricating compositions characterised by the base-material being a macromolecular compound containing halogen
C10M 119/22 - Lubricating compositions characterised by the thickener being a macromolecular compound containing halogen
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 33/66 - Special parts or details in view of lubrication
C10N 30/00 - Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
This method for calculating the evaporation amount of a lubricant within a mechanical device to the exterior includes: a calculation step in which the evaporation amount of the lubricant is calculated using a calculation formula defined so as to include a container shape parameter defined by modeling the configuration within the machine device as a container in which the lubricant is accommodated, a physical property parameter of the lubricant, an environmental parameter from the area around the lubricant, and a parameter regarding time; and an output step in which the evaporation amount calculated in the calculation step is output.
F16N 29/00 - Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditionsUse of devices responsive to conditions in lubricating arrangements or systems
This grease evaporation amount prediction method comprises: a calculation step for calculating a change in the amount of grease by using the lesser between a first substance amount and a second substance amount, the first substance amount being obtained by a first formula based on a vapor pressure drop caused by a base oil and a thickener included in the grease, and the second substance amount being obtained by a second formula based on a capillary force according to the thickener; and an output step for outputting the calculated change in amount as the amount of evaporation of the grease.
G01N 7/00 - Analysing materials by measuring the pressure or volume of a gas or vapour
C10M 169/02 - Mixtures of base-materials and thickeners
C10N 40/00 - Specified use or application for which the lubricating composition is intended
C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy
44.
ABNORMALITY DIAGNOSIS DEVICE AND ABNORMALITY DIAGNOSIS METHOD FOR BALL SCREW
Provided are an abnormality diagnosis device and an abnormality diagnosis method for a ball screw that allow for detection of abnormality such as damage or abrasion that has occurred in a screw shaft. This abnormality diagnosis device comprises: a vibration sensor (21) that detects vibration during operation of a ball screw; a filtering processing unit (23) that executes filtering processing for extracting a frequency band including at least a feature frequency corresponding to the natural vibration rate of the ball screw with respect to a vibration signal acquired using the vibration sensor (21); an envelope processing unit (241) that executes envelope processing of the vibration signal after the filtering processing; a frequency analysis processing unit (242) that executes fast Fourier transform processing on a time domain signal after the envelope processing; a peak hold and averaging processing unit (243) that executes peak hold and averaging processing of frequency domain data for each sampling period in the fast Fourier transform processing; and an abnormality determination unit (25) that determines abnormality of the ball screw on the basis of the frequency domain data after the peak hold and averaging processing.
A circumferential side surface (23a) of a column part (23) has a shape following a rolling surface (13a) of a cylindrical roller (13) on a pitch circle PCD passing through the axial center of a plurality of cylindrical rollers (13), and a circumferential gap C between the cylindrical roller (13) on the pitch circle PCD and the circumferential side surface (23a) of the column part (23) is smaller than the diameter DW × 0.01 of the cylindrical roller (13). A distance X by which the cylindrical roller (13) positioned on the pitch circle PCD can move radially outward with respect to a retainer (20) is greater than 1/2 of a radial internal gap Z of a bearing (10). There is thereby provided a cylindrical roller bearing having a long service life.
F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
[Problem] To provide a linear motion device using a highly reliable and environmentally friendly separator that improves a dimensional stability, ductility, and adhesion of greases based on poly-α-olefin oil, which are required for separators, and also prevents deformation at high speeds.
[Problem] To provide a linear motion device using a highly reliable and environmentally friendly separator that improves a dimensional stability, ductility, and adhesion of greases based on poly-α-olefin oil, which are required for separators, and also prevents deformation at high speeds.
[Solution] Provided is a linear motion device including a linear motion body (15) that is fitted onto a screw shaft (11) and moves straight along the screw shaft (11), a large number of balls (B) held in a ball groove (14) formed on an inner surface side of the linear motion body (15) and rolling between the ball groove (14) and the screw shaft (11), a separator (100) interposed 10 between each ball (B), a circulation passage (18) formed in the linear motion body (15) and circulating the ball (B) from one end side of the ball groove (14) to the other end side, where at least one of the separator (100) and the circulation passage (18) is formed from polyamide 410 by injection molding.
This machine equipment monitoring system comprises: machine equipment; an information collection device; and an information processing device. The machine equipment is equipped with a sensor; an actuator; and a communication unit that transmits a trigger signal when the actuator is in a suitable state for the sensor to detect the operating state of the actuator. The information collection device collects operating state data from the sensor upon receiving the trigger signal. The information processing device monitors the actuator on the basis of the operating state data collected by the information collection device.
A ball screw device has a screw shaft that has a screw portion having a spiral-shaped shaft-side ball screw groove on an outer peripheral surface thereof, and a carrier integrally formed with the screw portion and constituting a planetary speed-reducing mechanism; a nut that has a spiral-shaped nut-side bass screw portion on an inner peripheral surface thereof; a plurality of balls arranged between the shaft-side ball screw groove and the nut-side ball screw groove; and a rolling bearing for supporting the carrier which has an outer ring having an outer ring raceway, an inner ring raceway provided on a portion facing the outer ring raceway in a radial direction, and a plurality of rolling bodies arranged between the outer ring raceway and the inner ring raceway, which is directly formed on an outer peripheral surface of the carrier.
A ball screw device according to the present disclosure is provided with a nut, a screw shaft, a plurality of balls, and at least one return member for circulating the balls. An outer peripheral surface of the screw shaft is provided with at least one recess portion that is indented radially inward and accommodates the return member. An inner peripheral surface of the recess portion is provided with two screw shaft-side openings of an outer peripheral raceway surface that open toward the return member. The return member has: a pair of return member-side openings that open from the outer peripheral surface of the return member and connect to the screw shaft-side opening; a circulation groove surface that is connected to each of the pair of return member-side openings and in which the internal space constitutes a circulation path; and a pair of tangs that are disposed radially outward of the circulation groove surface and protrude toward the return member-side opening. The tip part of the tang is disposed radially outward relative to a virtual helix connecting the centers of the plurality of balls rolling on the raceway.
RfRHff; and if the speed of the device main body 10 is less than the predetermined threshold, performs control such that the driving force of the driving wheel 20 is zero.
B62B 3/00 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor
B62B 5/00 - Accessories or details specially adapted for hand carts
B62B 5/04 - Braking mechanismsLocking devices against movement
G01L 5/1627 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance of strain gauges
52.
ROTARY SUPPORT DEVICE FOR FLYING VEHICLE AND METHOD FOR MANUFACTURING SAME
Provided is a rotary support device for a flying vehicle that efficiently allows greater compactness while maintaining bearing performance. The present invention is provided with: a static body 5 that comprises a plurality of rows of outer-ring raceways 11a, 11b, each of which is of an angular type; a rotary body 6 that comprises a plurality of rows of inner-ring raceways 16a, 16b, each of which is of an angular type, and that is capable of supporting a propeller that constitutes a flying vehicle on one side in the axial direction; and balls 7a, 7b, a plurality of which are disposed in each row between the plurality of rows of outer-ring raceways 11a, 11b and the plurality of rows of inner-ring raceways 16a, 16b so that a back-combination angle of contact θ is applied. The pitch circle diameter PCD1 of a first ball 7a, which is disposed on the one side in the axial direction, and the pitch circle diameter PCD2 of a second ball 7b, which is disposed on the other side in the axial direction, mutually differ.
Provided is a flight vehicle rotation support device that easily ensures the coaxiality of a propeller with respect to a rotating body. The flight vehicle rotation support device 2 is provided with: a stationary body 5 having double-row outer ring raceways 10a, 10b on an inner peripheral surface, and capable of supporting a motor stator 8; the rotating body 6 having double-row inner ring raceways 12a, 12b on an outer peripheral surface, and capable of supporting a motor rotor 9 and the propeller 4; and a plurality of rolling elements 7a, 7b disposed between the double-row outer ring raceways 10a, 10b and the double-row inner ring raceways 12a, 12b. A propeller mounting part, to which the propeller 4 can be mounted directly, is formed in a portion of the rotating body 6 positioned on one side in the axial direction relative to the stationary body 5.
B64D 27/24 - Aircraft characterised by the type or position of power plants using steam or spring force
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
In this ball bearing with a seal, an inner ring has a seal inner ring groove provided with a bottom surface and an outer side surface intersecting the bottom surface. The seal member comprises a core metal and a seal part. The seal part has an outer part adhering to the core metal and a plate-shaped lip part extending radially inward from the outer part. The lip part has an outer surface and an end surface intersecting the outer surface, and the outer surface including an intersection part with the end surface abuts on the outer side surface.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
There is provided a rolling bearing capable of suppressing the occurrence of white structure spalling. A rolling bearing contains a structure having a solid solution carbon amount in a martensitic structure after heat treatment of 0.35 mass % or more and 0.65 mass % or less and a volume ratio of spheroidized carbides having a diameter of 200 nm or more of 4.5% or less.
A fitting shaft portion has an inner-diameter side engaging portion on an outer peripheral surface with external teeth arranged in a circumferential direction; a fitting member has an outer-diameter side engaging portion on an inner peripheral surface with internal teeth arranged in the circumferential direction and engaging with the inner-diameter side engaging portion; an engaging portion between the inner-diameter side engaging portion and the outer-diameter side engaging portion includes a portion having interference in the radial direction in a portion in the axial direction; and the fitting shaft portion has a crimped portion at an end portion on one side in the axial direction that engages in the axial direction with the fitting member.
Axial relative movement of an auxiliary member (30) and a hub body (22z) is performed, the hub body (22z) and an inner race (21) are combined with each other in an axial direction, and a part of the hub body (22z) deformed by a blade (33) of the auxiliary member (30) is disposed inside an engagement concave portion (26) of the inner race (21).
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
A double-row tapered roller bearing (20), which has an outer ring (21), an inner ring (23), and a plurality of tapered rollers (22) rollably disposed between the outer ring (21) and the inner ring (23), and rotatably supports an axle (50) of a railway vehicle, is provided with: an outer seal member (30) which has an outer cylindrical part (31) attached to an inner diameter part (21b) of the outer ring (21), and a standing plate part (32) extending radially inward from the outer end in the width direction of the outer cylindrical part (31); a small-diameter step part (26) formed in an outer diameter part (25) of the inner ring (23) adjacent to an inner diameter end (32a) of the standing plate part (32); and an elastic body (35) which is fixed to the inner diameter end (32a) of the standing plate part (32) and opposes an outer periphery of the small-diameter step part (26). The inner diameter end (32a) of the standing plate part (32) adjacent to the outer periphery of the small-diameter step part (26) opposes a side wall surface (26b) between the outer diameter part (25) of the inner ring (23) and the small-diameter step part (26) in the axle direction.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
F16J 15/3256 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
A linear motion guide device (100) comprises a guide rail (10), a slider (20), and a plurality of rolling elements (30). The slider (20) is provided with: a slider body (21) in which a raceway surface (24) and a return path (42) are formed; end caps (22) that are fixed to both ends in the longitudinal direction of the slider body (21), each end cap having an outer circular arc surface (43a) of a direction change path (43); and a return guide (26) that has an inner circular arc surface (43b) of the direction change path (43). The inner circular arc surface (43b) of the return guide (26), when viewed from the side of the return guide (26), covers all of a tip part (24a) of the raceway surface (24) formed in the slider body (21), the tip part (24a) connecting to the return guide (26).
This seal member for a ball screw comprises: an annular seal body section that is fixed to the inner circumferential surface of at least one axial-direction end portion of a nut; and a seal ridge section that is circumferentially formed on the inner-diameter side of the seal body section so as to be fitted into a screw groove of a screw shaft, and forms a labyrinth gap between the seal ridge section and the screw groove of the screw shaft, wherein the seal crest section has a hollow section circumferentially formed therein, the hollow section being formed by notching the seal crest section from one axial-direction side. As a result, more grease can be held, thereby achieving a long period of stable lubrication.
A manufacturing method of a rolling bearing ring comprising: a step of obtaining a base member; a step of forming, by laser cladding, a cladded layer made of a metal material having a higher hardness than the base member on one surface of the body member; a step of forming a rolling element guide surface by finishing a surface of the cladded layer; and a step of forming, by laser hardening, a hardened layer over the entire circumference of a surface layer portion of at least a part of the base member that is separated from the cladded layer.
A press-formed product manufacturing method includes obtaining a first piece (19, 55) by punching a metal material, obtaining a second piece (28, 50) by comprising an edge of a second surface (8) of the first piece (19, 53) sandwiching the first piece (19, 55) between a first die (25) and a second die (26), and trimming a second piece (28) by using press working.
B21D 53/10 - Making other particular articles parts of bearingsMaking other particular articles sleevesMaking other particular articles valve seats or the like
F16C 19/30 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for axial load mainly
F16C 33/54 - Cages for rollers or needles made from wire, strips, or sheet metal
A double-row tapered roller bearing (20) having an outer ring (21), an inner ring (23), and a plurality of tapered rollers (22), which are rollably disposed between the outer ring (21) and the inner ring (23), and rotatably supporting an axle, in which end sections have wheels of a railroad car attached thereto, comprises: a seal member (30) which is attached to the outer ring (21) and extends radially inward from the outer ring (21); and a one-step radial step section (26) formed on an outer diameter section (25) of the inner ring, the outer diameter section (25) being adjacent to the inner diameter portion of the seal member (30). Two-step radial gaps (41, 42) are formed between the inner diameter section of the seal member (30) and the outer diameter section (25) of the inner ring (23) in which the step section (26) is formed.
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
A rail cap (20) comprises: a lid member (20a) having a disk part (21) set apart from the inner peripheral surface of a seat hole (16) across a prescribed gap, and a circular columnar or cylindrical small-diameter part (22) that protrudes from the lower surface of the disk part (21) and is concentric with the disk part (21); and a fitting member (20b) that is attached to a groove part (23) of the lid member (20a) and that has an outer peripheral surface that is in planar contact with the inner peripheral surface of the seat hole (16) in a state in which the rail cap (20) has been fitted into the seat hole (16), and a slit (28) that extends in the vertical direction of the fitting member (20b). The groove part (23), in which the outer peripheral surface of the small-diameter part (22) is recessed inward in the radial direction, is formed in the upper end part of the small-diameter part (22).
F16C 29/06 - Ball or roller bearings in which the rolling bodies circulate partly without carrying load
F16C 29/08 - Arrangements for covering or protecting the ways
65.
COMPONENT SUPPLY SYSTEM, METHOD FOR MANUFACTURING ASSEMBLY, METHOD FOR MANUFACTURING BEARING, METHOD FOR MANUFACTURING MACHINE, METHOD FOR MANUFACTURING VEHICLE, AND PROGRAM
A component supply system according to the present invention is provided with a control device (3), a mobile robot (4), a transfer device, and a measurement device (25). The mobile robot (4), on the basis of a command from the control device (3), moves between a component stock site (1) and assembly equipment (2) in a trackless manner to convey a component case that accommodates components. The transfer device transfers the component case between the assembly equipment (2) and the mobile robot (4). The control device (3) measures the positional relationship between the assembly equipment (2) and the mobile robot (4) by using the measurement device (25), and corrects the stop position of the mobile robot (4) with respect to the assembly equipment (2).
G05D 1/43 - Control of position or course in two dimensions
B23P 19/00 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes
B23P 21/00 - Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
B25J 5/00 - Manipulators mounted on wheels or on carriages
A transmission includes a first shaft unit connected to a drive shaft of a drive unit. The first shaft unit includes a first shaft having a first shaft raceway surface on an outer peripheral surface thereof, a first output gear provided on the first shaft, a first outer ring attached to a first support part, the first outer ring having a first outer ring raceway surface on an inner peripheral surface thereof, and a plurality of first rolling elements disposed between the first shaft raceway surface and the first outer ring raceway surface.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
This ball-guide-type ball bearing retainer comprises: at least one annular part; and a plurality of columnar parts which have widths in the radial direction of the annular part and are erected in the axial direction from the annular part. The plurality of columnar parts are disposed at positions which define pocket parts at regular intervals along the circumferential direction of the annular part. Pocket part-facing surfaces of the columnar parts each have a plane parallel to the axial direction or an axial cylindrical surface parallel to the axial direction. A pocket part-facing surface of the annular part is a partially arc-shaped concave curved surface formed along the circumferential direction and has the same axial cross-sectional shape in the circumferential direction.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
[Problem] To sufficiently ensure a coupling strength between a bobbin and a magnetic ring regardless of temperature changes, while satisfactorily ensuring coaxiality between the bobbin and the magnetic ring. [Solution] A magnetostrictive torque sensor 1 comprises: a bobbin 3 having a bobbin-side cylindrical portion 7 disposed around a rotating shaft 2, a cylindrical-surface-shaped bobbin-side mating surface 8, and a bobbin-side locking hole 9; a detecting portion 4 having a detection coil disposed around the bobbin-side cylindrical portion 7; a magnetic ring 5 including a ring-side cylindrical portion 13 disposed around the detecting portion 4, a ring-side mating surface 14 which mates with the bobbin-side mating surface 8, and a ring-side locking hole 15; and a positioning member 6 spanning the bobbin-side locking hole 9 and the ring-side locking hole 15.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
Provided is a magnetostrictive torque sensor that can be reduced in size. A magnetostrictive torque sensor 1 is provided with: a resin holder 2 having a cylindrical part 21 into which a rotating shaft 9 having a magnetostrictive effect is inserted; a flexible substrate 4 that has a detection part 40 having formed in a wiring pattern a coil group obtained by combining a plurality of detection coils arranged in a prescribed direction and that has a signal line part 400 in which a plurality of signal lines 491-494 for electrically connecting the coil group and an external device 8 are formed in the wiring pattern; and a cylindrical magnetic ring 5 made of a soft magnetic material disposed on the outer circumference of the cylindrical part 21 of the holder 2. The detection part 40 is disposed between the cylindrical part 21 of the holder 2 and the magnetic ring 5, and the signal line part 400 is led out to the outside of the holder 2. The holder 2 has an annular wall 23 that surrounds the outer circumference of one axial end part of the magnetic ring 5, and the holder 2 and the magnetic ring 5 are fixed by a shaft-like fastener 6 which is inserted into a fastening hole 510 of the magnetic ring 5 by penetrating through the annular wall 23.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
This linear guide comprises a guide rail, a slider, and a lubrication unit. The lubrication unit includes a lubricant supply member, a case accommodating the lubricant supply member, and a pressing means. The pressing means has a first pressing part that is disposed in a recess to press the recess outward in the left-right direction of the slider, and a second pressing part that is an arc-shaped projection for pressing a side surface of the lubricant supply member inward in the left-right direction toward the guide rail, and that is disposed on the outside in the left-right direction and the lower side of a mounting part.
Provided is a linear guide comprising a lubrication unit, the lubrication unit including a lubricant supply member, and a case. The lubricant supply member includes a first recessed part formed at a position above a guide rail, a pair of second recessed parts formed at both right and left side-surface positions of the guide rail, and a protruding part that slides in contact with a rail side raceway surface. The case includes a first pressing part disposed in the first recessed part, and a pair of second pressing parts disposed in the pair of second recessed parts. In each of the second pressing parts, downward interference by a lower pressing part is greater than upward interference by an upper pressing part.
A magnetostrictive torque sensor is configured to be attached around a rotating shaft exhibiting a magnetostrictive effect and detects torque transmitted by the rotating shaft. The magnetostrictive torque sensor includes a holder being composed of a resin and including a cylinder portion with a hollow cavity in a center through which the rotating shaft is inserted, a flexible substrate that includes a detection portion on which a coil group composed of a combination of a plurality of detection coils aligned in a predetermined direction is formed by a wiring pattern, and a signal line portion on which a plurality of signal lines electrically connecting the coil group to an external device are formed by a wiring pattern, and a cylindrical magnetic ring being composed of a soft magnetic material and being arranged around an outer circumference of the cylinder portion of the holder. The flexible substrate is arranged in such a manner that the detection portion is curved and located between the cylinder portion of the holder and the magnetic ring, and a portion of the signal line portion is led out of the holder. The holder includes an annular wall surrounding an outer circumference of one axial end of the magnetic ring. The magnetic ring includes a retention hole that opens on an outer circumferential surface facing an inner circumferential surface of the annular wall. The holder and the magnetic ring are fixed by a shaft-shaped fastener that penetrates the annular wall and is inserted into the retention hole of the magnetic ring.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
73.
METHOD FOR PREDICTING LIFE OF ROLLING BEARING, AND METHOD FOR PREDICTING WEIBULL DISTRIBUTION OF LIFE OF ROLLING BEARING
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 19/10 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly
F16C 19/52 - Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
A ball bearing on one rotary shaft, out of a first rotary shaft and a second rotary shaft, on which a rotation member corresponding to a larger value of a ratio out of values of ratios of a rotation speed of a first rotation member and a rotation speed of a second rotation member relative to a rotation speed of a third rotation member is arranged does not include an inner race. Thereby, a ball PCD can be reduced while securing durability of a ball bearing on the one rotary shaft, and dragging loss between balls of the ball bearing and the inner race can be reduced. Since the ball bearing integrally configured with the rotary shaft is arranged on the one rotary shaft, reducing dragging loss of the ball bearing relatively largely reduces motive power loss on the third rotary shaft due to dragging loss of the ball bearing.
B60K 6/40 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
Provided is a grease deterioration detecting method which can detect deterioration of grease and in which the amount of grease necessary for detecting deterioration is small. The grease deterioration detecting method includes a dilution step of diluting grease with a diluent to obtain diluted grease, and a measurement step of measuring a color of the diluted grease with a sensor.
This linear motion device comprises: a guide shaft which is provided with a first ball rolling surface on the outer circumferential surface; a mobile body which is provided with a second ball rolling surface on the inner circumferential surface so as to face the first ball rolling surface and which moves relative to the guide shaft; and balls which roll in a space formed between the first ball rolling surface and the second ball rolling surface. In at least one of the first ball rolling surface and the second ball rolling surface, the average surface roughness Sa excluding a prescribed ball rolling-direction component is at least 0.1 μm.
A connecting structure includes a first member having a male screw portion on its outer-circumferential surface, a second member having a female screw portion on its inner-circumferential surface that is screwed with the male screw portion, a rotation restraining member placed between the first member and the second member and preventing relative rotation between the first member and the second member, and an elastic member applying elasticity in the axial direction between the first member and the second member.
F16H 63/06 - Final output mechanisms thereforActuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
F16H 25/22 - Screw mechanisms with balls, rollers, or similar members between the co-operating partsElements essential to the use of such members
Provided are: a retainer that minimizes any decrease in the amount of oil in an oil film on a rolling surface to minimize seizure and wear, the retainer being capable of handling higher rotation speeds of a roller bearing and not being damaged even when the bearing is assembled; and a roller bearing in which seizure, wear, and the like are minimized and higher rotation speed is made possible. A roller-bearing retainer (1) is composed of an annular flat plate having a width that can be accommodated in a gap between an outer ring (110) and an inner ring (120) of a rolling bearing, the roller-bearing retainer (1) comprising: a pair of annular members (5A, 5B) provided with the same number of circular holes as rolling elements (130), the circular holes being formed at equal intervals along the widthwise center; and a connecting member (15 (16, 17)) that connects the pair of annular members (5A, 5B) in a spaced-apart state so that holes (10A, 10B) are made to face each other. The rolling elements (130) are enclosed between the pair of annular members (5A, 5B), and parts of the outer peripheral surfaces of the rolling elements (130) are accommodated in the holes (10A, 10B), whereby the rolling elements (130) are retained.
F16C 33/42 - Ball cages made from wire or sheet-metal strips
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
79.
ROTATION DEVICE TEMPERATURE ESTIMATION METHOD, TEMPERATURE ESTIMATION DEVICE, AND PROGRAM
The present invention provides a temperature estimation method for estimating the temperatures of a plurality of parts constituting a device. The temperature estimation method includes: a setting step for setting a heat balance formula based on a thermal circuit network model specified in correspondence with the plurality of parts; an acquisition step for acquiring information related to heat generation of the device during operation; a calculation step for calculating the temperature of at least one of the plurality of parts by using the heat balance formula and the information acquired in the acquisition step; and an output step for outputting the temperature calculated in the calculation step.
G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
80.
METHOD FOR PRODUCING COMPOSITE MATERIAL MOLDED ARTICLE, METHOD FOR PRODUCING RETAINER AND ROLLING BEARING, AND METHOD FOR PRODUCING GEARBOX CONSTITUENT COMPONENT
A method for producing a composite material molded article includes a process of, from a solution in which reinforcing fibers with an average fiber length of 0.5 mm or more and thermosetting resin are dispersed and mixed in a solvent, removing the solvent by paper-making to form a preform, and a process of press molding the obtained preform using a mold set at a temperature equal to or higher than a curing temperature of the thermosetting resin to form the composite material molded article.
B29C 70/68 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers
B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
B29C 70/12 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of short length, e.g. in the form of a mat
B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
A flight vehicle rotation support device 1 comprises: a stationary body 2 having double row outer ring raceways 5a, 5b on the inner circumferential surface and capable of supporting a motor stator; a rotating body 3 having double row inner ring raceways 10a, 10b on the outer circumferential surface and capable of supporting a motor rotor and a propeller; and a plurality of rolling elements 4a, 4b disposed between the double row outer ring raceways 5a, 5b and the double row inner ring raceways 10a, 10b in a rollable manner. At least one outer ring raceway of the double row outer ring raceways 5a, 5b is directly formed on the inner circumferential surface of the stationary body 2 and/or at least one inner ring raceway of the double row inner ring raceways 10a, 10b is directly formed on the outer circumferential surface of the rotating body 3.
B64U 30/29 - Constructional aspects of rotors or rotor supportsArrangements thereof
B64U 50/19 - Propulsion using electrically powered motors
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
This rolling bearing comprises: an inner ring having an inner raceway formed in an outer circumferential surface thereof; an outer ring having an outer raceway formed in an inner circumferential surface thereof; a plurality of rolling elements that are provided between the inner raceway and the outer raceway so as to be freely rollable; and a retainer having a plurality of pockets in which the rolling elements are retained. The retainer has a pair of annular parts that are disposed side by side in the axial direction, and a plurality of columnar parts that are disposed spaced away from each other in the circumferential direction so as to connect between the pair of annular parts. At least one of the pair of annular parts has a plurality of bulgingly protruding portions that are formed on the outer circumferential surface in the circumferential direction so as to be spaced away from each other and that are guided by the inner circumferential surface of the outer ring. The bulgingly protruding portions are disposed adjacent to the respective pockets in the axial direction.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
Provided is a component for suppressing cooking oil degradation that does not comprise a special device such as a fryer having a cycle filtration mechanism and thus does not require exchange of filter papers or filters, does not require collection of solid matters produced in cooling oil such as bits of deep-fried batter and reduces the number of production processes. A component (10) for suppressing cooking oil degradation comprises: a degradation suppressing agent (1) containing at least one of an oxide and a hydroxide; and a fiber substrate for carrying the degradation suppressing agent (1), and is immersed in cooking oil when used.
A grease composition for vehicular hub unit bearings is provided, in which a base oil is a synthetic hydrocarbon oil having a kinematic viscosity at 40° C. of 25-50 mm2/s, a thickener is an alicyclic aliphatic diurea compound, based on a total mass of the composition, 0.1-5% by mass of a carboxylic acid-based corrosion inhibitor, 0.1-5% by mass of a carboxylic acid salt-based corrosion inhibitor, and 0.1-3% by mass of an amine salt of a fatty acid are contained, and a worked penetration is 220-270.
C10M 171/02 - Specified values of viscosity or viscosity index
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 129/10 - Hydroxy compounds having hydroxy groups bound to a carbon atom of a six-membered aromatic ring
A linear actuator of the present disclosure includes a ball screw device, a piston, and a rotation stopper. A screw shaft includes a screw shaft body, a male spline portion, and a step surface. A nut includes a first end surface, a first opening portion, and a first stopper. The piston includes a piston body, a cylindrical portion having a cylindrical shape, protruding in a second direction from a central portion of an opposite surface, and fitted into the male spline portion, and a second stopper protruding in the second direction from the opposite surface. The first stopper and the second stopper abut on each other and form the rotation stopper when the screw shaft is at an initial position. The step surface is arranged in the second direction compared to the first opening portion and is located inside the nut when the screw shaft is at the initial position.
Provided is a method for evaluating a filtration filter that is simple, requires only a small amount of sampling, and allows immediate on-site evaluation of filtration performance and degradation inhibition performance, without the need for a large-scale detection device. This method for evaluating a filtration filter used for regenerating used fats and oils comprises: an imaging step for imaging fats and oils filtered through the filtration filter or diluted with a solvent, together with a color sample (1), by means of an imaging device; an image information acquisition step for acquiring, on the basis of image information for the imaged color sample (1), image information for the imaged fats and oils or fats and oils diluted with a solvent; a fat and oil degradation determination step for determining the degradation state of the fats and oils on the basis of the image information; and a filtration filter evaluation step for evaluating the filtration performance and the anti-degradation performance of the filtration filter on the basis of the determination result of the fat and oil degradation determination step.
G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
A23D 9/00 - Other edible oils or fats, e.g. shortenings or cooking oils
A23D 9/02 - Other edible oils or fats, e.g. shortenings or cooking oils characterised by the production or working-up
A47J 37/12 - Deep fat fryers, e.g. for frying fish or chips
B01D 24/00 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
B01D 29/00 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor
B01D 35/02 - Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
A detection method for detecting a state of a bearing device including a plurality of rollers and first and second members configuring rolling surfaces of the rollers, the method including: applying an AC voltage to an electrical circuit configured by the rollers and the first and second members; measuring an impedance and a phase angle of the electrical circuit when applying the AC voltage; and deriving, based on the impedance and the phase angle, an oil film thickness and a metal contact ratio in at least one of between the first member and the rollers and between the second member and the rollers, in which the oil film thickness and the metal contact ratio are derived using a calculation equation corresponding to an electrical circuit configured by a line contact occurring between a roller and at least one of the first and second members in the bearing device.
An electric power steering device includes an assist pinion shaft, a worm wheel attached to an end part on the Z2 side of the assist pinion shaft, a worm shaft that has shaft teeth meshing with wheel teeth, and a casing that houses the worm shaft and the worm wheel. Among a plurality of parts of the wheel teeth, a first part is a part that meshes with the shaft teeth, and a second part is a part located on the opposite side of the first part with a central axis interposed therebetween. The first distance from an end surface on the Z1 side of the first part to a tip end of a casing end part is greater than the second distance from an end surface on the Z1 side of the second part to a tip end of the casing end part.
An actuator with reverse input blocking clutch has a function of switching the reverse input blocking clutch to a state in which torque can be transmitted between an input member and an output member, in a state in which reverse torque is input to the output member from an output-side mechanism, by applying torque to the input member by an actuator in an opposite direction to a direction of the reverse torque, and then by giving an instruction to the actuator to apply torque having a magnitude smaller than a magnitude of the reverse torque to the input member in the opposite direction, transmitting the reverse torque to the input member.
B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
F16D 43/21 - Internally controlled automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members
90.
BEARING RACEWAY RING FLAKING DEVELOPMENT ANALYSIS METHOD, FLAKING DEVELOPMENT ANALYSIS DEVICE, AND PROGRAM
This flaking development analysis method involves: acquiring the presence or absence of flaking of a raceway ring and the shape of a flaked portion; calculating a rolling element load acting on a rolling element, in consideration of progression in the shape of the flaked portion, when the rolling element passes an exit portion of the flaked portion of the raceway ring, on the basis, at least, of the acquired shape of the flaked portion, the specifications of a rolling bearing, and the operating conditions of the rolling bearing; calculating a speed of development of flaking in consideration of progression in the shape of the flaked portion, on the basis of the rolling element load at the exit portion of the flaked portion; and calculating a relationship between elapsed time and the shape of the flaked portion on the basis of the speed of development of flaking.
The nut according to the present disclosure includes a nut main body and a circulation component. The nut main body includes a housing part having a bow shape when viewed from an axial direction, a seat surface forming a bottom surface of the housing part, a through hole passing through the seat surface, and a pair of side surfaces arranged on both sides in the axial direction with respect to the housing part.
A roller includes chamfered portions and roller inclined surfaces formed on both axial ends of a roller outer circumferential surface. When in a cross section taken along a plane including a rotation axis of the roller and a bearing central axis, an intersection angle between a tangent line of the roller inclined surface at the first position of the roller inclined surface corresponding to an end portion of a guide surface and a perpendicular line of the rotation axis is defined as α, an intersection angle between a tangent line of the roller inclined surface at the second position corresponding to a boundary between the chamfered portion and the roller inclined surface and a perpendicular line of the rotation axis is defined as β, and an intersection angle between the guide surface and a perpendicular line of the bearing central axis is defined as θ, α<θ<β is satisfied.
F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
This actuator comprises: a motor; a planetary gear mechanism having a carrier; and a ball screw device having a screw shaft which is coupled to the carrier, a nut, and a plurality of balls. The carrier has: a carrier body having a first surface facing one side in the axial direction, and a second surface facing the other side in the axial direction; a boss part protruding to the other side in the axial direction from a central part of the second surface; and a female spline hole passing through the carrier body and the boss part in the axial direction. The screw shaft has a male spline part, and a screw shaft body including an outer circumferential orbit plane on the outer circumferential surface thereof. The screw shaft body is formed with a larger diameter than the male spline part. The boundary between the screw shaft body and the male spline part is provided with a step surface facing the one side in the axial direction. The boss part has an end surface facing the other side in the axial direction, and which has undergone flattening. The end surface abuts on the step surface.
This method for manufacturing a ring-shaped member includes: a step for preparing a workpiece (Wp); a step for pressing a first member (14a) against the workpiece (Wp) to form a recess (16) having an axial-direction depth in the workpiece (Wp); a step for using a second member (14b) to punch out a bottom portion (17) of the recess (16) in the workpiece (Wp); and a step for deforming a circumferential wall (Cw) in conjunction with relative displacement between the workpiece (Wp) and a third member (14c).
The efficiency of assembling a reverse-input blocking clutch including an elastic member is improved. A reverse-input blocking clutch 1 includes a pressed member 2 having a pressed surface 7, an input member 3 having an input-side engaging portion 22, an output member 4 having an output-side engaging portion 33, an engaging element 5 having a pressing surface 45, an input-side engaged portion 50, and an output-side engaged portion and arranged between the pressed surface 7 and the output-side engaging portion 33 with respect to a first direction which is a direction of moving toward or away from the pressed surface 7, an elastic member 6 that elastically urge the pressing surface 45 toward the pressed surface 7 in the first direction, and a displacement prevention means for preventing relative displacement in the axial direction of the engaging element 5 with respires to the output member 4.
F16D 41/063 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by moving along the inner and the outer surface without pivoting or rolling, e.g. sliding wedges
96.
INDUCTION HEATING METHOD AND INDUCTION HEATING DEVICE FOR RING-LIKE MEMBER, MANUFACTURING METHOD FOR RING-LIKE MEMBER, MANUFACTURING METHOD FOR BEARING, MANUFACTURING METHOD FOR VEHICLE, AND MANUFACTURING METHOD FOR MECHANICAL DEVICE
This induction heating method comprises: a step for supplying a ring-like member (Mr) in a predetermined section which is a section to be heated by using an induction coil; and a step for moving the ring-like member (Mr) along a reference axis so as to pass through the predetermined section. The moving step involves controlling, by means of a contact control unit (54), the contact between the ring-like member (Mr) and another member.
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races
This method for producing a resin retainer comprises a step for blending two or more resin materials having different contents of reinforcing fibers so as to achieve a desired amount of reinforcing fibers in a retainer (50) after molding and a step for molding the retainer (50) from a resin material containing two or more resin materials blended therein so that the amount of reinforcing fibers in the retainer (50) after molding is uniform throughout the retainer (50).
C08L 101/00 - Compositions of unspecified macromolecular compounds
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A rolling bearing (10) comprising: an outer ring (20) having an outer-ring raceway groove (21) provided in the inner circumferential surface (22), and an annular groove (24) that is provided in the outer circumferential surface (23) and that is for having an O-ring (42) attached thereto; an inner ring (30) having an inner-ring raceway groove (31) provided in the outer circumferential surface (32); and a plurality of rolling elements (40) freely rollably arranged between the outer-ring raceway groove (21) and the inner-ring raceway groove (31), wherein the outer-ring raceway groove (21) and the annular groove (24) do not overlap when the rolling bearing (10) is viewed in a radial direction.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A multi-row ball screw includes a nut having a plurality of spiral grooves on an inner peripheral surface thereof, a screw shaft having a plurality of spiral grooves on an outer peripheral surface thereof, and a plurality of balls disposed so as to be rollable on rolling paths constituted by the plurality of spiral grooves of the nut and the plurality of spiral grooves of the screw shaft. The spiral groove of the nut includes a U-shaped first spiral groove having left and right flanks that are respectively able to come into contact with two-row balls and separated from each other in an axial direction, and two second spiral grooves continuous with each row of the first spiral groove and each having left and right flanks that are able to come into two-point contact with the ball.
