49 results about "Torque limiter" patented technology

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.

The application relates to a damping device. The damping device comprises a side plate assembly including a first side plate and a second side plate coaxially fixedly connected and axially spaced apart; a damping flange coaxially arranged relative to the side plate assembly and axially located between the first side plate and the second side plate; a damping spring abutting between the damping flange and the side plate assembly in a rotation direction; an output hub coaxially arranged relative to the damping flange; and a torque limiter including a first friction disc torsionally connected with the side plate assembly and a second friction disc torsionally connected with the output hub, the first friction disc and the second friction disc capable of abutting each other in an axial direction to transmit torque through friction; wherein the first side plate has an axially extending axial section, the torque limiter is radially located between the axial section and the output hub, and the first friction disc is torsionally connected with the axial section. The damping device of the application is simple in structure and low in cost.

This invention relates to the field of mechanical engineering, specifically to a method and device for calibrating the anti-tilting entry angle of the main boom in lifting equipment. This application employs an automatic calibration process under no-load conditions. First, it collects the main boom's self-weight torque and force-related parameters based on the initial low-position angle. Then, it identifies the actual entry angle by utilizing the abrupt change in torque difference during uniform boom lifting. Finally, it calibrates the torque of auxiliary components based on this angle. Its beneficial effects are derived as follows: Manual calibration is prone to errors in the perceived entry angle and the actual force applied. This application eliminates the subjective errors of manual calibration by determining the entry angle through the abrupt change in torque difference. With accurate actual entry angle, the torque limiter can match the actual force state of the hydraulic cylinder during calculation, avoiding the error of "prematurely calculating / omitting the anti-tilting torque," thus significantly reducing the deviation between the theoretical and actual lifting weight. This solves the problem of false overload alarms affecting operational efficiency and avoids safety hazards caused by deviations in lifting weight calculation.

A torque limiter includes a first side plate, a second side plate, a friction disc, a pressure plate and a biasing member. The first side plate includes an attachment surface facing in an axial direction so as to be attached to a flywheel. The second side plate has a smaller outer diameter than an outer diameter of the first side plate. The second side plate is disposed so as to not overlap the attachment surface as seen in the axial direction. The second side plate is attached to the first side plate and is thicker than the first side plate. The friction disc is disposed between the first side plate and the second side plate in the axial direction. The a pressure plate is in contact with the friction disc. The biasing member biases the pressure plate toward the friction disc.

This invention discloses a pile cyclic load testing device with adjustable offset cyclic force loading function. The device includes a model box, a pile clamp, and an upper loading system. The upper loading system consists of a servo motor, an input shaft, a crank, a connecting rod, a rack, a gear, a gear shaft, a bidirectional torque limiter, a rack push rod, a buffer spring, an adjustable cantilever, a pulley, a loading cable, and loading weights. This invention allows for the adjustment of the torque limiter threshold, the weight mass, and the servo motor speed to achieve cyclic loads of different amplitudes, offset degrees, and frequencies. The mechanical transmission structure avoids frequent motor reversals, improving test stability and device lifespan. This device is suitable for studying the dynamic response of piles under cyclic loading conditions such as wind, waves, vehicle loads, and mechanical vibrations, providing a reliable testing method for pile foundation design and dynamic performance evaluation.

The application relates to a torque limiter, belonging to the technical field of mechanical manufacturing. The torque limiter comprises a driving end flange, a driven end flange and a plurality of ejector pin devices. The plurality of ejector pin devices are arranged at intervals along the circumference of the driven end flange and are connected with the driven end flange; and the plurality of ejector pin devices are arranged in pairs symmetrically relative to the central axis of the driven end flange. The ejector pin devices are movably connected with the driving end flange. In normal working conditions, the torque is transmitted by the contact between the force applied by the ejector pin devices and the driving end flange; when the system is overloaded, the overload force overcomes the force applied by the ejector pin devices to make the ejector pin slide or displace to cut off the power, thereby quickly responding to the protection system, and the torque limiter can be automatically reset after the overload is eliminated. In addition, the torque is uniformly distributed due to the symmetric distribution and the movable connection characteristics, the work is stable, and the convenience and the work efficiency of the equipment are remarkably improved.

An actuator device (1) for a disc brake (2) comprises a piston (7), a first ball-in-ramp motion converter (100), having a first ramp portion (101) axially constrained and rotatable around the actuation axis (8), a second ramp portion (102) coupled with the piston (7), and a plurality of rolling elements (29) interposed in contact between ramp tracks (103) formed by the first (101 ) and second ramp portions (102), a second motion converter (4) of screw and nut type, connected between the second ramp portion (102) and the piston (7), a torque limiter (10) which provides a torsional connection between the first ramp portion (101) and the second ramp portion (102), allowing their rotation in unison around the actuation axis (8) until a predetermined torque threshold is reached in said torsional connection, and decoupling the rotation of the first ramp portion (101) relative to the second ramp portion (102) around the actuation axis (8) upon exceeding the predetermined torque threshold, as well as a position sensor (64) configured to detect a position of the second ramp portion (102) and to generate a detected position signal of the second ramp portion (102).

The utility model discloses a device for assisting in balancing weight leveling of a support, which relates to the technical field of testing equipment in the semiconductor industry and comprises a bottom plate, a driver, a PLC (programmable logic controller), a motor, a power detector, a tri-color lamp, a speed reducer and a torsion limiter, the motor is arranged on one side of the bottom plate, the speed reducer is arranged on the upper side of the motor, the driver is arranged on one side of the speed reducer, and the PLC is arranged on the other side of the speed reducer. A PLC is arranged on the lower side of the motor, a tricolor lamp and a power detector are arranged at one end of the bottom plate, a torsion limiter is arranged on the other side of the bottom plate, the motor is connected with a driver and a speed reducer, the speed reducer is connected with the torsion limiter, the torsion limiter is connected with a power shaft of the auxiliary support, and the PLC is connected with the power detector and the tricolor lamp. Through cooperative work of the PLC, the power detector and the three-color lamp, an operator can quickly determine the weight adjusting direction of the weight box according to the colors presented by the three-color lamp in real time, the debugging time of a single support is greatly saved, the production and assembly speed is remarkably increased, and then the overall production efficiency is improved.

This invention relates to a torque limiter comprising a first component, a second component, a helical spring, and a positioning component, wherein the first component, the second component, the helical spring, and the positioning component are coaxially arranged along the same axis. According to the invention, the helical spring has a spring body and a first end and a second end extending from the spring body along the axial direction, wherein the spring body is wound on at least a portion of the outer peripheral surface of the first component, and the positioning component is connected to the second component and thereby forms a receiving space accommodating the helical spring and at least a portion of the first component, such that when the second component applies a tangential force relative to the axis at the first end, the first component can rotate in a first direction, and when the positioning component applies a tangential force relative to the axis at the second end, the first component can rotate in the opposite second direction. Also related is a flip-top lid machine and a toilet with a torque limiter.

The invention relates to a torsional vibration damper (1) with a rotational axis (2) for a drive machine (3), comprising a motor shaft connection (4) for a motor shaft (5) and a hub (6) for a transmission input shaft (7), wherein in the torque curve between the hub (6) and the Motor shaft connection (4) are arranged as follows: - a torque limiter (8); and - a torsional damper unit (9) with a hub-side flange (10) and a motor-side flange (11), and an energy storage device (12) between the flanges (10, 11), wherein the hub-side flange (10) is directly connected to the hub (6) in a torque-resistant manner, wherein the torque-resistant connection between the hub-side flange (10) and the hub (6) is formed in an axially detachable, form-fit manner. The torsional vibration damper (1) is characterized in particular by the fact that an axial locking element (19) is axially secured on the rear side of the hub-side flange (10), and the axial locking element (19) has an axial holder (20) which projects axially forward relative to the hub (6), and the hub (6) is axially secured relative to the hub-side flange (10) by means of the axial holder (20) of the axial locking element (19). A torsional vibration damper is proposed here, which is easy to install and remove.

This invention discloses a copper-based powder metallurgy friction plate for wind turbine torque limiters and its preparation method. The friction plate blank is first subjected to pressureless sintering to obtain a pre-sintered blank, and then the pre-sintered blank is re-pressed to obtain a re-pressed friction plate blank. The re-pressed friction plate blank is then assembled with a copper-plated steel backing to obtain a composite blank, which is then subjected to pressure limiting sintering to obtain the final product. The preparation method of this invention, through the synergy of pressureless pre-sintering, re-pressing, and pressure limiting sintering, obtains a copper-based powder metallurgy friction plate for wind turbine torque limiters with small deformation, high density, and excellent mechanical and tribological properties.

This invention relates to the field of nuclear power equipment, and more particularly to a tool and method for installing and removing auxiliary filter bolts. The tool comprises: a vertically arranged drive shaft, positioned and supported on an upper support seat by radial bearings; a drive gear fixedly connected to the lower end of the drive shaft, directly transmitting the input torque to the drive gear; several shaft holes on the upper support seat, positioned and supported by radial bearings for a driven upper shaft; a driven gear fixed on the driven upper shaft, meshing with the drive gear; an input end of a torque limiter connected to the driven gear, and an output end connected to a driven intermediate shaft; several shaft holes on the lower support seat, positioned and supported by radial bearings for a driven lower shaft; the driven upper shaft, driven intermediate shaft, and driven lower shaft connected sequentially; the upper end of a tightening sleeve inserted into the driven lower shaft, and a spring disposed outside the driven lower shaft. This invention can simultaneously tighten or loosen multiple bolts, improving work efficiency.

The present disclosure relates to a torque limiter and a torque damping device. The torque limiter comprises: a holding plate used for introducing torque, a first cover plate used for outputting torque, a second cover plate which is axially pressed onto the first cover plate and used for outputting torque, a first friction plate axially provided between the first cover plate and the holding plate, and a second friction plate axially provided between the second cover plate and the holding plate, the first friction plate and the second friction plate being an outer ring and an inner ring formed by separating the same ring-shaped friction plate. Compared with conventional single-friction-plate designs, the separation means saves about half the material costs of friction plates.

Provided is a power transmission device and a torque limiter that can be made less expensive. The power transmission device includes a drive plate and a torque limiter. The torque limiter includes a first side plate, an inertial member, a friction plate, a pressure plate, and an urging member. The first side plate is disposed on a first side in an axial direction with respect to the drive plate. The first side plate is configured to rotate integrally with the drive plate. The inertial member is disposed on the first side in the axial direction with respect to the first side plate. The inertial member is configured to rotate integrally with the first side plate. The friction plate is configured to be able to rotate in opposition to the first side plate. The pressure plate cooperates with the first side plate to sandwich the friction plate. The urging member urges the pressure plate in the axial direction toward the first side plate.

The present invention aims to provide a dry friction base material, a dry friction material, a torque limiter, and a fixing structure for a dry friction base material, which can ensure a stable friction coefficient. The dry friction base material 1 is fixed to the surface of a plate 6 for a torque limiter, and has a fixed shape portion 2 for fixation. The shape of the fixed shape portion is preferably concave, convex, or notched. Furthermore, the shape of the dry friction base material in plan view is preferably circular, elliptical, polygonal, or arcuate.

This utility model relates to a bidirectional torque plate for an impact testing bench, comprising a torque plate body detachably mounted on a torque limiter under test. The torque plate body has lever arms extending radially to both sides, with each lever arm's end forming a torque-acting end mechanically connected to a force sensor. When the torque limiter under test is subjected to an impact load, the torque plate body tends to rotate clockwise or counterclockwise. When one lever arm applies pressure to the corresponding force sensor through its torque-acting end, the other lever arm applies tension to the corresponding force sensor through its torque-acting end, thus achieving bidirectional measurement of tensile and compressive forces. This utility model improves detection accuracy by canceling out the self-weight of symmetrical torque couples, effectively achieving precise control of the torque transmission path under impact load, thereby enhancing the stability and reliability of torque measurement data.

The present application discloses a paper separating structure, which is arranged between a paper feeding channel and a paper cassette and comprises a driving motor, a shaft arranged between the paper feeding channel and the paper cassette, a paper separating wheel coaxially sleeved on the shaft, a paper separating torque limiter connected between the shaft and the paper separating wheel, a transmission shaft connected with the driving motor to transmit power, a ratchet wheel connected with the shaft to limit the rotation direction of the shaft, and a driving torque limiter connected between the transmission shaft and the ratchet wheel.

The application discloses a radial grading torque limiter damper, comprising a damper subassembly and a torque limiter subassembly, a first-stage torque limiter is generated by a smaller-diameter friction pair, and a second-stage torque limiter is generated by a larger-diameter friction pair, so that the function of grading torque limiter is realized. The application has the advantages that the torque limiter function is provided by the cylindrical friction pair, and the number of parts of the torque limiter subassembly is reduced compared with the traditional ring-type friction pair.

An actuation device (1) for a disc brake (2), comprises a thrust plate (3), a ball ramp motion converter (5), having a first ramp portion (6) axially constrained and rotatable around the actuation axis (4), a second ramp portion (7) coupled with the thrust plate (3) and a plurality of rolling elements (8) interposed in contact between ramp tracks (9) formed by the first (6) and second ramp portion (7), a screw-nut motion converter (22) connected between the second ramp portion (6) and the thrust plate (3), a torque limiter (23) which establishes a torsional connection between the first ramp portion (6) and the second ramp portion (7), wherein the actuation device (1) comprises a joint (10) interposed between the second ramp portion (7) and the thrust plate (3), and wherein the joint (10) is configured to transfer the braking force between the second ramp portion (7) and the thrust plate (3), and to allow and accommodate rotational and / or translational displacements of the thrust plate (3) relative to the second ramp portion (7).

The invention extends an existing vehicle dynamics control system to stabilise cornering on extremely low friction surfaces with an estimated friction coefficient mu in the range of approx. 0.02 - 0.05. A controller superimposes sharp-edged steering impulses around a dynamic neutral steering position δ0(t) with an asymmetric bias towards the curve direction. The impulses are synchronised with short brake pulses (preferably at the inner-rear wheel) and a drive-torque limiter so that the combined tyre force remains inside the friction ellipse sqrt(Fx2 + Fy2) ≤ mu (estimated) -TV. A state machine (ARMING, ACTIVE, STABILISATION and ABORT) activates automatically when mu (estimated) ≤ 0.05 and vehicle speed v≤ 20 km / h, and deactivates on stability restoration or driver override. The result is maintained lateral guidance and convergence of yaw / trajectory towards a desired course r_des under μ-split or polished-ice conditions. Disclosed are a method, a system, a computer program and a computer-readable medium.

This invention relates to a combined torque limiter and a wind turbine coupling having the same, in the field of wind turbine coupling technology. The torque limiter includes a torque limiter flange, at least two pressure plates, at least two friction plates, and multiple friction pads. The pressure plates are connected to the torque limiter flange via the same set of bolts. The friction plates are respectively disposed between the torque limiter flange and adjacent pressure plates, and between adjacent pressure plates. The friction pads are disposed between the flange and the friction plates, and between the pressure plates and the friction plates, forming multiple friction pairs connected in series. Adjacent friction plates are connected by end face splines to transmit torque and provide axial adjustment clearance. The bolts ensure that all friction pairs generate equal positive pressure. This invention uses the same set of bolts to uniformly tighten all friction pairs, ensuring equal force on each friction pad and eliminating pressure superposition. Within the bearing capacity limit of the friction pads, it effectively increases the slippage torque. Furthermore, it has a compact structure, is easy to debug, and operates stably and reliably, making it suitable for high-power wind turbine couplings.

This invention relates to the field of torque limiter pin technology, and discloses a 600KN heavy-duty pin for a torque limiter, comprising: a pin body disposed on the limiter, the pin body including a ball seat, a steel ball, a pin shaft, a disc spring assembly, a damping adjusting screw, a threaded pressure block, a threaded buffer sleeve, a cover, an anti-loosening screw assembly, a pin housing, a retaining ring, a wedge block assembly, and a spacer; the inner ring of the limiter has a ball groove, and the outer ring of the limiter has a through groove; the ball seat is fixedly installed in the ball groove by bolts, and the outer wall of the ball seat has a conical surface. This invention has a simple structure, reliable anti-loosening, good lubrication effect, low contact stress, and long service life; it can prevent screw loosening at any angle, and the load capacity is increased from the international maximum of approximately 330KN to over 600KN.

The present disclosure relates to a torque limiter, comprising: a flywheel; a first axial load-bearing portion; a second axial load-bearing portion, which is fixed relative to the first axial load-bearing portion in an axial direction and is spaced therefrom by a certain distance; a torque input plate, which is fixed relative to the flywheel in a radial direction and drives the flywheel to rotate integrally about a rotation axis; and a driven plate configured to output torque. The torque input plate and the driven plate are axially arranged between the first and second axial load-bearing portions, with the torque input plate closer to the first axial load-bearing portion and the driven plate closer to the second axial load-bearing portion. The torque input plate and the driven plate abut against each other with a certain axial force, and the driven plate is driven to rotate about a rotation axis by means of friction between the two. The present disclosure further relates to a transmission assembly comprising such a torque limiter and a vehicle comprising the transmission assembly.

This invention relates to a door opener, comprising a motor, a reducer, a motor support frame, and a traveling support frame. The reducer is disposed within the motor support frame, and the motor is fixed to the motor support frame and connected to the input end of the reducer. The output end of the reducer is driven by a main drive shaft, and both ends of the main drive shaft are driven by torque limiters. The torque limiters are driven by a connecting rod gear set via friction discs. The traveling support frame is movably disposed below the motor support frame via an elastic frame assembly. A drive wheel is disposed below the traveling support frame, and a drive shaft is fixed to the drive wheel. Both ends of the drive shaft are fixed to the connecting rod gear set.

A gearmotor assembly comprises a stepper motor, a reduction gearbox, and a torque limiter. The stepper motor is configured to receive input power to selectively rotate a motor shaft about a motor axis. The reduction gearbox includes a reduction gear assembly, a motor shaft coupling configured to operably couple the motor shaft and the reduction gear assembly, and a gearbox coupling operably coupled to the reduction gear assembly and having a gearbox coupling axis. The torque limiter is positioned to operably couple the stepper motor, the reduction gear assembly, and the gearbox coupling when a relative net torque between the stepper motor, the reduction gear assembly, and the gearbox coupling is below a maximum torque and to operably decouple the stepper motor, the reduction gear assembly, and the gearbox coupling when the relative net torque is at or above the maximum torque.

The utility model relates to the field of torsion limiter, especially one -way torsion limiter convenient to overhaul. Including driving shaft, driving shaft cover is equipped with copper ring, tablet, disc spring, fixed sheet, copper ring cover is equipped with first friction piece, sprocket and second friction piece, and sprocket both ends are respectively with first friction piece and second friction piece mutually cooperate, and tablet and second friction piece mutually cooperate, and disc spring and tablet are engaged, and fixed sheet and disc spring mutually cooperate, and driving shaft is connected with end cover, and end cover is connected with bolt, and bolt and fixed sheet resist, and driving shaft is connected with ratchet wheel, and sprocket rotatably connects with stand, and stand is connected with pawl, and sprocket detachably connects with vertical plate, and vertical plate is connected with spring no.

This invention discloses a method for preparing a resin-based friction material for enhancing torque limiters, comprising the following steps: Step 1, performing surface and interface modification treatment on the metal powder, thereby constructing a multi-level composite interface structure on the surface of the metal powder, consisting of a roughening layer, an activation transition layer, and an organic coupling layer. The organic coupling layer is composed of organic molecules containing active groups, used to form chemical bonds between the metal surface and the resin; Step 2, mixing the metal powder with the multi-level composite interface structure with modified phenolic resin, fibers, and fillers; Step 3, pressing and heating the mixed material to form a friction composite material with a continuous interface bridging structure; the corresponding formulation is also disclosed. The wear rate of the product of this invention is reduced by more than 50% compared with the unmodified system, the compressive strength is increased by more than 20%, and the friction coefficient is significantly improved and remains stable, exhibiting excellent comprehensive friction performance.

The invention relates to a cleaning tool for an aerosol-generating device. The cleaning tool comprises a cleaning head and a handle. At least a part of the cleaning head is rotatably mounted in the handle. The cleaning tool further comprises at least one suspension element arranged between the cleaning head and the handle. The suspension element is arranged to engage the cleaning head or the handle to prevent relative rotation between the cleaning head and the handle, if a torque below a predetermined threshold is applied between the cleaning head and the handle. The suspension element is configured to disengage the cleaning head or the handle, if a torque above a predetermined threshold is applied between the cleaning head and the handle.

A paper feeding device and an image processing device, the paper feeding device of an embodiment has a paper feeding roller and a separation roller that line up in a line-up direction and clamp a sheet. The paper feeding device has the paper feeding roller, the separation roller, a shaft, a holding member, and a rotation-stopping portion. The paper feeding roller conveys the sheet in a conveying direction. The separation roller pushes against the paper feeding roller. The shaft rotatably supports the separation roller through a torque limiter. The holding member has a support portion. On the support portion, a first guide surface and a second guide surface that oppose each other and extend along the line-up direction are provided. The rotation-stopping portion is attached to the shaft. The rotation-stopping portion is inserted between the first guide surface and the second guide surface. The rotation-stopping portion has a first sliding surface and a second sliding surface. The first sliding surface opposes the first guide surface on the paper feeding roller side in the line-up direction and on the downstream side in the conveying direction with respect to the rotation axis of the separation roller. The second sliding surface opposes the second guide surface on the opposite side of the paper feeding roller in the line-up direction and on the upstream side in the conveying direction with respect to the rotation axis of the separation roller.

An actuating device for a disc brake may have a piston, and a first ramp-ball motion converter having a first ramp portion axially constrained and actuatable in rotation around and actuating axis. The device may also have a second ramp portion coupled to the piston and a plurality of rolling elements interposed in contact between ramp tracks formed by the first and second ramp portion. The device may also have a second screw and nut motion converter connected between the second ramp portion and the piston. The device may also have a torque limiter that implements a torsional connection of the first ramp portion with the second ramp portion. The torque limiter may also decouple the rotation of the first ramp portion with respect to the second ramp portion about the actuating axis when a predetermined limit torque is exceeded.