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1061results about "Rotating vibration suppression" patented technology
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Adjustable gas spring tuned mass damper
Vibration in a drill string is damped with a damping system coupled to the drill string. The damping system includes a chamber, a gas and piston in the chamber, and a mass connected to the piston. The gas defines a spring having a spring coefficient that is dependent on a volume or temperature of the chamber. The damping system is tunable in real-time by varying the volume or temperature of the chamber. In alternatives with multiple chambers interconnected to one another via ports, chamber volume at the existing pressure can be varied by selective actuation of valves between the chambers or the pressure of the gas can be varied by compressing or expanding a connected bellows or by heating or cooling the temperature of the gas. The damping system can selectively damp both radial and torsional vibrations.
Owner:BAKER HUGHES OILFIELD OPERATIONS LLC
Segmented vibration absorber
ActiveUS12209632B2Rotating vibration suppressionVibration dampersRotational axisVibration absorption
A vibration absorber for securely fixing to the housing of a gearbox includes an absorber mass having a first group of segments that are rotationally symmetrical to one another with respect to a rotational axis and / or central axis of the gearbox. The segments can be rigidly connected to one another. The vibration absorber can further include connectors that are rigidly connected to two segments each.
Owner:VESTAS WIND SYSTEMS AS
Viscous vibration damping of torsional oscillation
An apparatus for damping vibrations includes an inertial mass disposed in a cavity in a rotatable downhole component, the rotatable component configured to be disposed in a borehole in a subsurface formation, such as a resource bearing formation, the inertial mass coupled to a surface of the cavity by a damping fluid and configured to move within the cavity relative to the downhole component. The apparatus also includes a damping fluid disposed in the cavity between the inertial mass and an inner surface of the cavity, where rotational acceleration of the rotatable downhole component causes shear in the damping fluid to dissipate energy from rotational acceleration of the rotatable downhole component and causing the rotational acceleration to be reduced.
Owner:BAKER HUGHES OILFIELD OPERATIONS LLC
Mass damper device, working tool and working tool holder comprising a mass damper device
A mass damper device includes a tubular housing having a first and a second longitudinal end; at least one damping mass which is received in the tubular housing with a circumferential clearance; a first resilient element and a second resilient element. At least one end closure is arranged at the first or second longitudinal end. The housing and the end closure have cooperating mounting surfaces which define a longitudinal mounting position of the first and second end closures. The mounting surfaces are arranged such that the first and second resilient elements are compressed between the damping mass and the end closure, when the first and second end closures have been mounted, at the longitudinal mounting position, to the housing.
Owner:MAQ AB
Glove box
A glove box includes a cover that is mounted in a dashboard of a vehicle in a state in which a front surface of the cover is open, a housing accommodated in a state in which an open surface thereof is covered by the cover and configured for selectively opening or closing the open front surface of the cover along a preset rotational trajectory, a plurality of transfer links that are arranged between first and second outer ends of the housing and first and second inner ends of the cover and transfer the housing along the preset rotational trajectory, and a damper that is connected between the cover and the transfer links and corrects a rotational force of the housing through length expansion / contraction.
Owner:HYUNDAI MOBIS CO LTD
Tubular drive arrangement with a resilient damper, a screening arrangement incorporating such a tubular drive arrangement, and a method of assembling a screening arrangement
A tubular drive arrangement (20) for a screening arrangement (10) for a window, in which a drive part (24) coupled to drive shaft and a motor of the drive arrangement comprise engagement means (24.1, 24.2) configured to be connected to counterpart engagement means (12.1, 12.2) of a roller tube (12) of the screening arrangement in an assembled condition. At least one resilient damper (31, 32) is connected to or connectable to the engagement means (24.1, 24.2, 24.3) of the drive part (24).
Owner:VKR HOLDING AS
Electromagnetic type semi-active three-mass flywheel damping device and control method
The invention discloses an electromagnetic type semi-active three-mass flywheel damping device and a control method. The system comprises a DMF (Dimethyl Formamide) consisting of a dual-mass flywheel assembly and a second mass flywheel, and an eddy current damper arranged in the DMF, the eddy current damper covers the second mass flywheel; the eddy current damper is used for generating eddy current damping around the second mass flywheel; the eddy current damper weakens or eliminates torsional vibration transmitted to the second mass flywheel by the dual mass flywheel assembly through eddy current damping; the advantages of a dual-mass flywheel and an eddy current damper can be innovatively combined, the dual-mass flywheel is upgraded into a semi-active shock absorber, the damping force is indirectly controlled by adjusting electromagnetic current, the problems that a traditional DMF shock absorption working principle is single, and the frequency band is narrow are solved, the more ideal shock absorption effect is achieved, the shock absorption effect is flexible and controllable, and the shock absorption effect is good. The defects in the prior art are overcome, and the method has high application value.
Owner:XIANGTAN UNIV
Bonding equipment
ActiveCN119317042APrinted circuit assemblingRotating vibration suppressionMechanical engineeringPhysics
The embodiment of the invention provides a main pressure bonding device, and relates to the technical field of hot pressure bonding of silicon-based micro display products, the main pressure bonding device comprises a support, the support is provided with a bonding device used for bonding a substrate and a PCB, a first alignment device and a second alignment device used for aligning the substrate and the PCB, and a double-coiling device used for buffering during bonding; the first alignment device is located in front of the bonding device, the second alignment device is located behind the bonding device, and the double-winding device is located below the bonding device. By arranging the double material rolling devices, one or two layers of buffer materials can be selected and used according to product process requirements; the bonding device comprises a horizontal adjusting mechanism which can conveniently adjust the levelness of a pressure head, and further comprises a force measuring mechanism which can perform a pressure test and select the optimal pressure and temperature for bonding after a period of time or when products of different specifications are replaced; and the first alignment device and the second alignment device are arranged at the front and the back, so that high-precision alignment is carried out on the substrate and the PCB, and the final bonding precision is high.
Owner:ZHEJIANG SEMIPEAK TECH CO LTD
Vibration damper
PCT designated stage expiredWO2025091362A1Rotating vibration suppressionYielding couplingMechanical engineeringVibration damper
A vibration damper, comprising a spoke spring buffer (10), wherein the spoke spring buffer (10) comprises a center portion (11), a plurality of spoke springs (12) and an outer ring portion (13), the outer ring portion (13) coaxially surrounds the radial outer side of the center portion (11), the plurality of spoke springs (12) are respectively radially connected between the outer ring portion (13) and the center portion (11) and are circumferentially arranged at intervals, and the plurality of spoke springs (12) can elastically deform to allow the outer ring portion (13) to rotate relative to the center portion (11); and further comprising a cover plate (20), wherein the cover plate (20) is fixed on an axial side of the center portion (11), and can directly or indirectly abut against the outer ring portion (13) in a relative rotation manner, such that when the outer ring portion (13) rotates relative to the center portion (11), the cover plate (20) can be in direct or indirect frictional contact with the outer ring portion (13), thereby reducing the risk of deformation of the spoke spring buffer (10) toward an axial side.
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG
Terminal-equipped damper device
The present invention provides a terminal-equipped damper device with which it is possible to achieve a reduction in size in a direction intersecting the sliding direction of a rod and leading outward of a case. This terminal-equipped damper device 10 comprises a body case 20, a rod 40, and a damper structure. The rod 40 has a pressing portion 47 that, by means of the sliding position thereof, presses against a first terminal 60 and causes the first terminal 60 to make contact with a second terminal 70. The first terminal 60 is disposed on the outer side of the body case 20 and has a first extending portion 61 that extends in the sliding direction of the rod 40, a first contact portion, and a receiving portion 62 that is pressed by the pressing portion 47. The second terminal 70 is disposed on the outer side of the body case 20 in a position facing the first terminal 69 and has a second contact portion and a second extending portion 71 that extends in the sliding direction of the rod 40.
Owner:PIOLAX INC
Disconnect mechanisms
A drive mechanism for use with an electric motor and a clutch mechanism includes a rotor shaft, a disconnect shaft, a disconnect mechanism, at least one damper element, and a part of a clutch. The rotor shaft and disconnect shaft have a longitudinal axis A. The disconnect shaft transmits torque between the rotor shaft and the clutch mechanism. The disconnect shaft comprises the part of the clutch and a shaft element. The disconnect mechanism is configured to move the disconnect shaft between an engaged position in which the part of the clutch is engaged with the clutch mechanism and a disengaged position in which the part of the clutch is not engaged with the clutch mechanism. The at least one damper element is configured to absorb at least part of any kinetic energy introduced into the disconnect shaft due to movement of the disconnect shaft.
Owner:HAMILTON SUNDSTRAND CORP
Fluid type shaft driving mechanism
PendingCN119491950ASimple structureWide range of rotation anglesBarrages/weirsRotating vibration suppressionCylinder blockMechanical engineering
The invention provides a fluid type shaft driving mechanism which comprises a cylinder body, a main shaft and a transmission arm, the transmission arm is arranged in the cylinder body and can rotate in the cylinder body around the axis of the main shaft, and the cylinder body is divided into a first cavity and a second cavity by the transmission arm. The first sealing bag body is arranged in the first cavity, the second sealing bag body is arranged in the second cavity, and fluid connectors are arranged on the first sealing bag body and the second sealing bag body. When the fluid enters the first sealing bag body, the transmission arm is pushed to move towards the direction of the second cavity; and when the fluid enters the second sealing bag body, the transmission arm is pushed to move towards the direction of the second cavity. According to the fluid type shaft driving mechanism, the manufacturing cost is reduced, and the output torque of the swing driving mechanism is improved.
Owner:NANJING GEYING WATER CONSERVANCY TECH CO LTD
Centrifugal force actuated damper
A shaft system includes an outer shaft including an inner surface defining a conduit and an inner shaft extending within the conduit. The inner shaft includes a radially extending passage having a first end and a second end. A centrifugal force activated damper extends between the outer shaft and the inner shaft. The centrifugal force activated damper includes a first member arranged between the inner shaft and the inner surface at the first end of the radially extending passage, a second member arranged between the inner shaft and the inner surface at the second end of the radially extending passage, and a connecting member extending through the radially extending passage. Rotation of the shaft system causes the first member and the connecting member to shift away from the second member into the inner surface of the outer shaft.
Owner:HAMILTON SUNDSTRAND CORP
Pendular rocker damper with overload protection, and hybrid powertrain
A pendular rocker damper for a hybrid powertrain of a motor vehicle includes a primary component, a stop attached to the primary component, a secondary component rotatable relative to the primary component, a counter stop attached to the secondary component, a rocker element used for torque transmission, first and second roller bodies arranged to roll in respective guide tracks, and a compression spring. The rocker element is suspended on the primary component and the secondary component in a pendular manner. The first roller body couples the rocker element to the primary component and the second roller body couples the rocker element to the secondary component. The compression spring resiliently supports the rocker element. The stop interacts with the counter stop to support the primary component relative to the secondary component in a circumferential direction once the compression spring is displaced by a specified elastic spring deflection.
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG
Low-frequency vibration isolation rotating shaft supporting structure and construction method
The invention discloses a low-frequency vibration isolation rotating shaft supporting structure and a construction method, and the supporting structure comprises a main body frame which comprises an inner ring, an outer ring and a partition plate, the inner ring and the outer ring are respectively used for connecting an excitation end and a response end, the partition plate is arranged between the inner ring and the outer ring, and the partition plate, the inner ring and the outer ring are connected to form a plurality of spaces; and a cell disposed in each space, the cell including a cantilever beam and a mass block. The supporting structure is based on a local resonance mechanism, the cantilever beam-mass block honeycomb cells are used, the obvious vibration isolation characteristic is achieved within the target frequency range, the structure is relatively simple, a complex manufacturing process and high material cost are not needed, and the machining difficulty and cost are reduced.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Intelligent bearing device for pads of radial tilting-pad sliding bearing and online gap regulation and control method
The invention relates to an intelligent tile supporting device of a radial tilting-pad sliding bearing and an online gap regulation and control method, and relates to the technical field of sliding bearing rotor dynamics. Comprising a stepping motor, a horizontal vibration displacement sensor, a vertical vibration displacement sensor, a control processor and two intelligent fulcrum devices which are symmetrically installed in the vertical direction and are of the same structure. The horizontal vibration displacement sensor and the vertical vibration displacement sensor are installed in the horizontal direction and the vertical direction of the rotor respectively and connected with the input end of the control processor, the output end of the control processor is connected with the input end of the stepping motor, and an output shaft of the stepping motor is connected with the intelligent fulcrum device. According to the invention, working parameters such as the bearing clearance and the preload can be timely adjusted on line according to the operation working conditions of the bearing and the rotor under the condition of no shutdown or disassembly, so that the rotor system has better vibration resistance and stability, and meanwhile, the sliding bearing keeps a reliable lubrication characteristic.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Damper and internal combustion engine
The invention relates to a shock absorber and an internal combustion engine. The shock absorber includes a spoke spring buffer and a friction disk. The spoke spring buffer piece comprises an outer ring part, a plurality of spoke springs and a central part; the multiple spoke springs are connected between the outer ring part and the center part in the radial direction and distributed in the circumferential direction at intervals. The plurality of spoke springs are elastically deformable in a circumferential direction to allow the outer ring portion to rotate relative to the central portion. The friction disc and the spoke spring buffering piece are coaxially arranged, and the friction disc abuts against the multiple spoke springs in the axial direction. When the outer ring part rotates relative to the center part, the friction disc makes friction contact with the multiple spoke springs. The shock absorber is low in cost, the mounting space is saved, and the friction force is easily adjusted according to requirements.
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG
Torque generation device and method and electronic equipment
The embodiment of the invention provides a torque generation device and method and electronic equipment, and the device comprises a double-shaft torque generator which is used for alternately outputting two kinds of torque which are opposite in the same axis direction; the double-shaft torque generator comprises a plurality of gyro motors and a cam connecting rod transmission device; the plurality of gyro motors comprise at least one pair of paired gyro motors; the torque acting structure is used for receiving and transmitting torque, and the torque acting structure is located between the double-shaft torque generator and the single-shaft torque compensation device and connected with the double-shaft torque generator and the single-shaft torque compensation device through ratchet wheel structures; and the single-shaft torque compensation device is used for performing compensation according to the torque which is alternately output by the double-shaft torque generator and is opposite in direction, so that the torque received and transmitted by the torque acting structure is continuous torque in the same direction. The torque generation device provided by the embodiment of the invention can generate continuous torque without reactive force.
Owner:凌憬严
Damping-adjustable inerter shock absorber
The invention discloses a damping-adjustable inerter shock absorber which comprises an inerter and a magneto-rheological shock absorber, the lower end of the inerter is connected with the upper end of the magneto-rheological shock absorber, the inerter comprises a ball screw (1) and a ball nut (2), and the magneto-rheological shock absorber comprises a base, an outer cylinder barrel (4), a piston (5) and a rotating barrel (6). The upper end of the rotating cylinder (6) is fixedly connected with the ball nut (2), the piston (5) and the outer cylinder barrel (4) are both fixedly arranged on the base, the lower end of the rotating cylinder (6) is connected with the outer cylinder barrel (4) in an inserted mode, the piston (5) is located in the rotating cylinder (6), and magnetorheological gel is filled among the outer cylinder barrel (4), the piston (5) and the rotating cylinder (6). The damper has the advantages of attenuating the vibration amplitude and accelerating the attenuation rate at the same time, and has a wide damping adjustable range.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
Damper shaft with a rotation axis for a rotor connection of an electric drive machine
The invention relates to a damper shaft (1) with a rotation axis (2) for a rotor connection (3) of an electric drive machine (5,6), comprising at least the following components: - a rotor-side torque connection (7); - a gearbox-side torque connection (8); - a stop device (9) by which a clearance angle (10) between the rotor-side torque connection (7) and the gearbox-side torque connection (8) is predetermined to a maximum angle (11) and only upon reaching the maximum angle (11) are the rotor-side torque connection (7) and the gearbox-side torque connection (8) connected to each other with a second torque stiffness by means of the stop device (9) in a torque-transmitting manner; and - a torsionally flexible connecting device (12), wherein within the clearance angle (10) the rotor-side torque connection (7) and the gearbox-side torque connection (8) are connected to each other with a first torque stiffness by means of the torsionally flexible connecting device (12), where the first torque stiffness is lower than the second torque stiffness. The damper shaft proposed here allows for the reduction of noise emissions caused by zero crossings without affecting the installation space.
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG
Propeller shaft damper with retention lip
A propeller shaft assembly includes a propeller shaft extending along an axis between a first and second shaft end. A propeller shaft yoke is operably connected to one of the first or second shaft ends and includes a body presenting a mounting surface extending circumferentially about the axis. A tuned damper extends radially outwardly from the mounting surface and includes a first damper ring disposed in abutting and encircling relationship with the mounting surface and a second damper ring disposed in abutting and encircling relationship with the first damper ring. The tuned damper includes a retention lip extending radially downwardly from the second damper ring in axially spaced relationship with the mounting hub by an axial spacing distance D for protecting the tuned damper from axial impact forces and improving the robustness of the tuned damper mounted on the mounting surface.
Owner:NEAPCO INTELLECTUAL PROPERTY HOLDINGS LLC
Vibration reduction assembly, suspension device and vehicle
The invention discloses a vibration reduction assembly, a suspension device and a vehicle. The vibration reduction assembly comprises a vibration reduction part, a fluid pump and a motor, the vibration reduction part comprises a cavity and a piston piece, an inner cavity is formed in the cavity, at least part of the piston piece is movably attached to the inner side wall of the inner cavity and divides the inner cavity into a first cavity and a second cavity, the fluid pump communicates with the first cavity and the second cavity, and the motor is in transmission connection with the fluid pump. The fluid pump can drive the motor through fluid flowing through the fluid pump, and / or the motor can drive the fluid pump to drive the fluid in the fluid pump to flow. According to the vibration reduction assembly, the piston piece can do piston motion in the inner cavity, so that fluid is pressed to react on the piston piece, and damping vibration reduction is achieved. The fluid can drive the motor to rotate when flowing through the fluid pump, the motor can convert kinetic energy of the fluid into electric energy, and energy recovery is achieved. Damping vibration attenuation and energy recovery can be independently controlled and decoupled and can also be mutually coordinated and matched, and the applicability can be improved.
Owner:BYD CO LTD
Composite damping device for vibration reduction of tower drum and blades of offshore wind turbine
PendingCN121162646ARotating vibration suppressionInertia force compensationVibration controlCoupling
A composite damping device for vibration reduction of a tower drum and blades of an offshore wind turbine belongs to the technical field of vibration reduction of wind driven generators, and is characterized by comprising a blade integration unit and a tower drum tuning unit, the blade integration unit adopts a cylindrical particle damping cavity, the center of the cylinder is connected with a mass ball through a spring, and the cavity is filled with damping particles; the steel wire rope is fixed in the blade to restrain vibration displacement; the tower tube tuning unit is connected with the mass block through a steel wire rope, the mass block is circumferentially provided with the springs and connected with the tower tube wall, the lower portion of the mass block is connected with the mass ball, and the upper periphery and the lower periphery of the mass block are connected with the tower wall through the hydraulic inerter dampers. And the working space is obviously reduced, the multi-direction vibration control capability is improved, and the method is suitable for vibration control of offshore wind turbine towers and blades.
Owner:QINGDAO UNIV OF TECH
Self-adaptive parameter-adjusting semi-active wind turbine blade damping system and control method
InactiveCN120083652ARotating vibration suppressionWind motor controlTurbine bladeClassical mechanics
The invention discloses a self-adaptive parameter-adjusting semi-active wind turbine blade damping system and a control method, belongs to the technical field of wind power generation, and solves the problem of how to reduce the vibration amplitude of an existing wind turbine blade. The device comprises a data processing module and a modal control module, the data processing module comprises a blade aeroelastic response monitoring unit and a data integration calculation unit, the modal control module comprises a control shell, a sliding rail is arranged at the bottom in the control shell, and a magnet and a constant mass block are arranged on the sliding rail through sliding blocks; frequency adjusting mechanisms acting on the magnet and the constant mass block are arranged at the two ends of the sliding rail; a damping adjusting mechanism acting on the magnet and the constant mass block is arranged above the magnet and the constant mass block. The data integration calculation unit is electrically connected with the frequency adjusting mechanism and the damping adjusting mechanism. By reconstructing the structural dynamic characteristics of the blade system, the vibration amplitude of an existing wind turbine blade is reduced, and the requirement for long-term stable operation of the wind turbine blade is met.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Master-slave shaft restraining coupling buffering and damping method
PendingCN120120361ARotating vibration suppressionMechanical oscillations controlMotion parameterElectric cables
The invention discloses a master-slave shaft suppression coupling buffer damping method, and relates to the technical field of servo driver damping. The method comprises the following steps: realizing real-time communication and motion parameter exchange between a main shaft servo driver and a slave shaft servo driver through a special interface communication cable, calculating the torque upper limit of the slave shaft driver according to the torque of the main shaft driver and a preset damping parameter, and enabling the slave shaft driver to reversely move to offset the impact momentum of the main shaft; meanwhile, the speed and acceleration of the main shaft are obtained, the slave shaft driver moves reversely at the matched speed and acceleration, and it is ensured that the slave shaft driver can bear the impact of the main shaft by considering the load ratio. The method can effectively reduce the coupling effect and vibration, improve the stability and precision of the system, adapt to different working conditions, simplify the design and control process, and prolong the service life of the system.
Owner:东莞市智赢智能装备有限公司
Active vibration reduction mechanism of heading machine for civil construction
ActiveCN119617058AImprove stabilityfirmly connectedRotating vibration suppressionSpringsConstruction engineeringElectric machinery
The invention belongs to the technical field of civil construction, and discloses an active vibration reduction mechanism of a heading machine for civil construction. The active vibration reduction mechanism of the tunneling machine for civil construction comprises a shield tunneling machine body and a cutterhead, a driving motor is fixedly connected to the left side of the shield tunneling machine body, a stabilizing mechanism is arranged on the shield tunneling machine body and located on the outer side of the driving motor, the output end of the driving motor is fixedly connected with the cutterhead, and the active vibration reduction mechanism is arranged on the cutterhead. The shield tunneling machine body is further provided with a monitor. According to the active vibration reduction mechanism of the heading machine for civil construction, through the design of the stabilizing mechanism and the cooperation of monitoring of the monitor, vibration generated during operation of the driving motor is restrained, the output end of the driving motor is restrained, and therefore the connecting position of the driving motor and a cutter head is stabilized; therefore, the stability between the driving motor and the cutter head is effectively improved, and noise generated by vibration during equipment operation is reduced.
Owner:CHINA RAILWAY 18TH BUREAU GRP CO LTD +2
Drop-resistant fire rescue device
ActiveCN222482819UImprove drop resistanceImprove impact resistanceRotating vibration suppressionCasings/cabinets/drawers detailsSimulationFire - disasters
Owner:SICHUAN ZHOUJI EMERGENCY SERVICE CO LTD
Centrifugal force pendulum comprising radially internal stop damper
A centrifugal force pendulum includes two pendulum flanges, a pendulum mass, a stop damper and roller bodies. The two pendulum flanges are rotationally fixed together, include respective flange cutouts, and define a pendulum mass receiving space therebetween. The pendulum mass is arranged in the pendulum mass receiving space and includes a mass cutout and a radial inner face. The stop damper is arranged on the radial inner face and includes two through-openings. The roller bodies extend through the flange cutouts and the mass cutout. The flange cutouts and the mass cutout define a movement path, the pendulum mass is movable relative to the two pendulum flanges along the movement path, and fastening elements extend through the two through-openings to connect the stop damper to the pendulum mass. A torsional vibration damper including the centrifugal force pendulum is also disclosed.
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG
Vibration reduction process method based on combination of liquid medium and double-mass sphere
InactiveCN119412470AIncrease the absorption areaImprove liquidityRotating vibration suppressionMaintainance and safety accessoriesLiquid mediumHigh density
The invention discloses a vibration reduction process method based on combination of a liquid medium and a double-mass sphere, and particularly relates to the technical field of machining, which comprises the following steps: step 1, by utilizing the principle that the sphere can freely float in the liquid medium, placing two kinds of spheres with different densities in the liquid medium, under the action of centrifugal force generated by rotation of the workpiece, the ball body is attached to the inner surface of the workpiece to form a layer capable of absorbing vibration energy, and the vibration energy of the workpiece is transmitted to a liquid medium and a machine tool system; 2, the high-density balls mainly absorb vibration impact energy, and the low-density balls efficiently transmit self vibration displacement to a liquid medium in a liquid volume discharging mode (displacement) mainly by means of the large density difference between the low-density balls and the liquid medium. The problems caused by vibration in precision machining of the hollow thin-wall slender shaft are solved.
Owner:ZHUZHOU SHENGDA IND CO LTD
Power transmission device and torque limiter
To provide a power transmission device that can be made low-cost. [Solution] The power transmission device comprises a drive plate and a torque limiter. The torque limiter comprises a first side plate, an inertia member, a friction plate, and a biasing member. The first side plate is configured to be positioned on a first axial side relative to the drive plate. The first side plate is configured to rotate integrally with the drive plate. The inertia member is positioned on a first axial side relative to the first side plate. The inertia member is configured to rotate integrally with the first side plate. The friction plate is positioned to rotate relative to the first side plate. The pressure plate clamps the friction plate in cooperation with the first side plate. The biasing member biases the pressure plate axially toward the first side plate.
Owner:EXEDY CORP