An electric percussion device comprises a frame (101), an actuator member (103) linearly movable with respect to the frame, and a linear electric machine (104) comprising a mover (105) for directing impacts to the actuator member and a stator (106) having windings for generating a magnetic force directed to the mover when electric currents are supplied to the windings The electric percussion device comprises a power electronic converter (107) for driving the linear electric machine and a controller (108) for controlling the power electronic converter to drive the linear electric machine based on a control signal that defines a temporal behavior of operation of the electric percussion device. For example, impact energy of impacts directed to the actuator member can be ramped up at a beginning phase of a percussion work. This reduces energy consumption and undesired slips of the actuator member from material under the percussion work.
An electric percussion device (100) comprises a frame (101), an actuator member (103) linearly movable with respect to the frame, and a linear electric machine (104) comprising a mover (105) for directing impacts to the actuator member and a stator (106) having windings for generating a magnetic force directed to the mover when electric currents are supplied to the windings. The electric percussion device comprises a power electronic converter (107) for driving the linear electric machine and a controller (108) for controlling the power electronic converter so that operation of the electric percussion device fulfills functionality defined by values of one or more operating parameters. The controller is configured to carry out an experiment run where the values of the one or more operating parameters are varied between temporally non-overlapping periods of percussion work and, after the experiment run, select most advantageous one or more values of the one or more operating parameters.
E02F 3/96 - DraguesEngins de terrassement entraînés mécaniquement avec des dispositions pour l'emploi alterné d'éléments de creusement différents
B25D 11/00 - Outils portatifs à percussion entraînés par moteur électrique
H02P 6/00 - Dispositions pour commander les moteurs synchrones ou les autres moteurs dynamo-électriques utilisant des commutateurs électroniques en fonction de la position du rotorCommutateurs électroniques à cet effet
09 - Appareils et instruments scientifiques et électriques
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Machines, namely electrical, mechanical, hydraulical, pneumatical and electromechanical hammering, drilling and piling machines and related construction, mining and demolition equipment; Earth working machines; Electric driving motors for machines; Linear motors for hammering, drilling and piling purposes; Hammers [machines]; Demolition hammers [machines]; Breakrock hammers [machines]; Electric Breaker Hammers [machines]; Electric Impact hammers; Electric carrier machines; machine tools, power-operated tools; motors and engines, except for land vehicles; machine coupling and transmission components, except for land vehicles; agricultural implements, other than hand-operated hand tools; incubators for eggs; automatic vending machines.. Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; recorded and downloadable media, computer software, blank digital or analogue recording and storage media; mechanisms for coin-operated apparatus; cash registers, calculating devices; computers and computer peripheral devices.. Installation, cleaning, repair, leasing and maintenance of earth working, construction, mining and demolition machines and equipment.. Software as a service [SaaS]; Platform as a service [PaaS]; Installation, maintenance and updating of software; Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.
A mover (103) for a tubular linear induction machine comprises a ferromagnetic core (102) having a rod-like shape elongated in the longitudinal direction (z) of the mover The ferromagnetic core is a single piece of ferromagnetic steel and has annular grooves on a surface of the ferromagnetic core so that the annular grooves are successively in the longitudinal direction of the mover and the annular grooves surround a longitudinal geometric center line (198) of the ferromagnetic core. The mover comprises conductor rings (103) made of electrically conductive material and placed in the annular grooves of the ferromagnetic core. As the ferromagnetic core is the single piece of ferromagnetic steel, it provides mechanical strength against impacts directed to the mover. Thus, the mover is suitable for an electric percussion device.
An electric percussion device (100) comprises a frame (101), an actuator member (103) linearly movable with respect to the frame, and a linear electric machine (104) comprising a mover (105) for directing impacts to the actuator member and a stator (106) having windings for generating a magnetic force directed to the mover when electric currents are supplied to the windings The electric percussion device comprises a sensor system (107) for detecting situations where the mover passes a control limit position with respect to the frame. The electric percussion device comprises a controller (108) configured to control the linear electric machine to decrease the magnetic force directed to the mover in response to a situation in which a predetermined time has elapsed after the mover has passed the control limit position when moving towards the actuator member. Thus unwanted current peaks can be avoided when the mover hits the actuator member.
A stator core structure (103) for a tubular linear electric machine comprises ring-shaped stator elements (107, 108) stacked in the longitudinal direction (z) of the stator core structure. Each of the ring-shaped stator elements is constituted by two oorr mmoorree sectors comprising ferromagnetic material and attached to each other, where joint surfaces between the sectors coincide geometric planes each coinciding with a longitudinal geometric center line of the stator core structure. The joints between the sectors can be oriented so that a magnetic flux does not need to penetrate the joints and thus the joints do not disturb the electro-magnetic operation of the tubular linear electric machine.
H02K 41/03 - Moteurs synchronesMoteurs pas à pasMoteurs à réluctance
H02K 7/14 - Association structurelle à des charges mécaniques, p. ex. à des machines-outils portatives ou des ventilateurs
H02K 33/12 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits se déplaçant dans des directions opposées par alimentation alternée de systèmes à deux bobines
Machines, namely electrical, mechanical, hydraulical,
pneumatical and electromechanical hammering, drilling and
piling machines and related construction, mining and
demolition equipment; earth working machines; electric
driving motors for machines; linear motors for hammering,
drilling and piling purposes; hammers [machines]; demolition
hammers [machines]; breakrock hammers [machines]; electric
breaker hammers [machines]; electric impact hammers;
electric carrier machines; machine tools, power-operated
tools; motors and engines, except for land vehicles; machine
coupling and transmission components, except for land
vehicles.
(1) Electrical, mechanical and electromechanical drilling machines for drilling, reaming, countersinking, tapping, boring and counterboring purposes and related construction, mining and demolition equipment, namely, mining machines being electric hammers, bits for mining machines, drills for the mining industry, machines for mining exploration, road construction machines being road rollers, road scrapers, and road paving machines, demolition machines being construction rammers; electrical, mechanical and electromechanical hammering machines for hammering, namely, electric hammers, punching operation, namely, punches for and presses for punching machines, filleting operation, namely, hammer drills; riveting operation and smithy operation purposes and related construction, mining and demolition equipment, namely, mining machines being electric hammers, bits for mining machines, drills for the mining industry, machines for mining exploration, road construction machines being road rollers, road scrapers, and road paving machines, demolition machines being construction rammers; hydraulic drilling machines for use in mining and road construction, namely, for hole cleaning, wellbore stabilization, cooling and lubrication, pressure controllers being parts of machines, namely, valves; pneumatic drilling machines, namely, straight air drills, angle air drills and reversible air drills; hydraulic hammering machines for construction, excavation, mining and quarry, metallurgical, trenching and demolition purposes; electrical, mechanical, hydraulic, pneumatical and electromechanical piling machines; earth working machines, namely, excavators, backhoe loaders, bulldozers, skid-steer loaders, motor-graders, trench diggers, coal and front-end loaders, and wheel tractor-scrapers, dozer loaders, compact track loaders and multi-terrain loaders, wheel loaders; electric driving motors for machines; linear motors for hammering, drilling and piling purposes; electric hammers [machines]; electric demolition hammers [machines]; electric rock hammers and breakers; electric breaker hammers [machines]; electric impact hammers; electric carrier machines, namely, unmanned transportation conveyors being electric cargo handling machines, electric conveyor belts and vertical belt conveyors; machine tools, namely, electric hammers, electric drills and piling machines; power-operated tools; machine coupling and transmission components, except for land vehicles.
Machines, namely electrical, mechanical, hydraulical, pneumatical and electromechanical hammering, drilling and piling machines and related construction, mining and demolition equipment, namely, mining machines, road construction machines, demolition machines; Earth working machines; Electric driving motors for machines; Linear motors for hammering, drilling and piling purposes; jack hammers; machines, namely, demolition hammers; machines, namely, breakrock hammers; machines, namely, electric Breaker Hammers; Electric Impact hammers; Electric carrier machines, namely, cargo handling machines; machine tools, namely, hammering, drilling and piling machines, power-operated tools, namely, tools for drilling, piling, construction, mining and demolition; motors and engines, except for land vehicles; machine coupling and transmission components, except for land vehicles
10.
A brake for linear movement and a hammer device comprising the same
A brake (101) for linear movement comprises a frame structure (102), a linearly moveable annular element (103), a linearly moveable center element (104) surrounded by the annular element, and a spring (106) for moving the annular element in a direction (+z) in which a volume of an annular chamber (105) whose wall is constituted by the annular element increases. The center element comprises a collar (107) for moving the annular element together with the center element against a spring force of the spring. The annular element comprises apertures for conducting damper fluid to and from the annular chamber. The spring is a plate spring that gradually closes the apertures when the annular element moves against the spring force so that a plate of the spring gets gradually parallel with a surface of the annular element around the apertures.
A linear electric machine includes a mover and a stator. The mover includes permanent magnets, and the stator includes a ferromagnetic core-structure and windings for conducting electric currents. The linear electric machine includes support structures on both sides of the ferromagnetic core-structure and supporting the mover to be linearly movable with respect to the stator in the longitudinal direction of the linear electric machine. At least one of the support structures includes a support element arranged to keep the mover a distance away from solid metal constituting a frame-portion of the support structure. The support element includes material whose electrical conductivity is less than that of the solid metal. As the mover is kept the distance away from the solid metal, eddy currents induced by the moving permanent magnets to the solid metal are reduced.
B25D 11/06 - Moyens d'entraînement de la pièce en mouvement
H02K 15/03 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques comportant des aimants permanents
H02K 41/03 - Moteurs synchronesMoteurs pas à pasMoteurs à réluctance
09 - Appareils et instruments scientifiques et électriques
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Machines, namely electrical, mechanical, hydraulical, pneumatical and electromechanical hammering, drilling and piling machines and related construction, mining and demolition equipment; Earth working machines; Electric driving motors for machines; Linear motors for hammering, drilling and piling purposes; Hammers [machines]; Demolition hammers [machines]; Breakrock hammers [machines]; Electric Breaker Hammers [machines]; Electric Impact hammers; Electric carrier machines; machine tools, power-operated tools; motors and engines, except for land vehicles; machine coupling and transmission components, except for land vehicles; agricultural implements, other than hand-operated hand tools; incubators for eggs; automatic vending machines. Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; recorded and downloadable media, computer software, blank digital or analogue recording and storage media; mechanisms for coin-operated apparatus; cash registers, calculating devices; computers and computer peripheral devices. Installation, cleaning, repair, leasing and maintenance of earth working, construction, mining and demolition machines and equipment. Software as a service; Platform as a service; Installation, maintenance and updating of software; Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.
A linear electric machine comprises a mover (101) and a stator (105). The mover comprises permanent magnets, and the stator comprises a ferromagnetic core-structure and windings for conducting electric currents. The linear electric machine comprises support structures (108, 109) on both sides of the ferromagnetic core-structure and supporting the mover to be linearly movable with respect to the stator in the longitudinal direction of the linear electric machine. At least one of the support structures comprises a support element (111) arranged to keep the mover a distance away from solid metal constituting a frame-portion of the support structure. The support element comprises material whose electrical conductivity is less than that of the solid metal. As the mover is kept the distance away from the solid metal, eddy currents induced by the moving permanent magnets to the solid metal are reduced.
A hammer device (100) comprises a frame (101), an actuator member (103) linearly movable with respect to the frame, and a linear electric machine for linearly moving the actuator member. The frame comprises attachment members (102) for attaching to a working machine so that the frame is nondestructively detachable from the working machine. The linear electric machine comprises a mover (104) for linearly moving the actuator member and a stator (105) connected to the frame and comprising windings (106) for generating a magnetic force directed to the mover in response to electric current supplied to the windings.
E02F 3/96 - DraguesEngins de terrassement entraînés mécaniquement avec des dispositions pour l'emploi alterné d'éléments de creusement différents
E01C 23/12 - Dispositifs ou aménagements pour travailler la surface terminéeDispositifs pour réparer la surface des revêtements endommagés pour enlever, arracher ou briser les revêtements
E02F 5/30 - Dispositifs annexes, p. ex. pour dégeler, défoncer, faire éclater, ou pour d'autres traitements préparatoires du sol
