337 results about "Torque limiter" patented technology

The invention relates to a powder metallurgy high-performance copper-based alloy friction plate for a torque limiter of a wind power coupler and a preparation method of the friction plate. The friction plate is composed of, by mass, 9%-14% of carbon, 1%-3% of tin, 2%-8% of friction components, 12%-18% of iron, 0%-3% of nickel and the balance copper. The preparation method comprises the steps of burdening, mixing, forming, sintering and machining. The prepared high-performance copper-based alloy friction plate is particularly suitable for a torque limiter of a wind power generation coupler. The alloy disclosed by the invention is reasonable in component design, simple and controllable in preparation process, easy to realize batch, large-scale and automatic production, high in production efficiency, energy-saving and moderate in cost; the obtained product is excellent in performance, and can greatly improve the torque control precision, save the maintenance cost and improve the operation safety and reliability of wind power equipment when being applied to a wind power coupling torque limiter.

The utility model discloses a large-section multi-fork-body heavy-load telescopic pallet fork which comprises a plurality of fork bodies, every two fork bodies are connected through a universal driving shaft, a driving assembly is installed below one fork body, each fork body comprises an upper fork, a middle fork and a lower fork which are movably connected in sequence, universal flange plates are installed at the two ends of each universal driving shaft, and the universal flange plates are connected with the universal driving shafts. The driving assembly comprises a gear motor and a first chain wheel in driving connection with an output shaft of the gear motor, a gear shaft is installed on the lower fork, a torque limiter is installed at one end of the gear shaft, the other end of the gear shaft is connected with a universal flange plate, a second chain wheel is arranged on the torque limiter and connected with the first chain wheel through a chain, and the gear motor drives the torque limiter through the first chain wheel. And the torque limiter and the gear shaft coaxially transmit power to the transmission gear on the lower fork. The automatic picking and placing device is used in cooperation with the stacking machine so as to achieve automatic picking and placing of large-load long goods in the three-dimensional warehouse.

The invention discloses an electric control protection device for a transmission system test bed and a control method of the electric control protection device. One end of the driving torque limiter is connected with the output end of the driving mechanism; one end of the tested piece is connected with the other end of the driving motor torque limiter; one end of the load torque limiter is connected with the other end of the tested piece; the output end of the load mechanism is connected with the other end of the load torque limiter; the load torque limiter and the driving torque limiter are the same in structure. And key parts of the transmission system can be prevented from being damaged when overload or overspeed occurs. The invention further provides a control method of the electric control protection device for the transmission system test bed.

The invention discloses an automatic deviation rectification control method of a tower crane moment limiter, relates to the technical field of automatic deviation rectification control of tower cranes, and is used for solving the problems that deviation rectification response of a tower crane is lagged, and a dangerous operation state caused by wind load disturbance or attitude instability cannot be avoided in time. The wind speed influence of the tower crane is calculated by monitoring the wind load deviation angle of the tower crane and the environment wind speed, and no-load state data are collected to judge whether a deviation correction mechanism is triggered or not; after triggering, the gradient in the vertical hoisting process is monitored, structural influence characteristics are generated, and whether the safety limit is lowered or not is judged by combining a wind speed influence coefficient; calculating a current moment through a moment limiter, comparing the current moment with a safety limit, and judging whether an automatic deviation correction control rule is started or not; and when the rectification rule is not started, the load swing frequency is detected in real time, the rotation posture offset is collected, the safety limit is updated in combination with the load swing frequency, and whether the rectification rule is started or not is judged again, so that automation and real-time performance of tower crane rectification are achieved, and the rectification efficiency is improved.

A testing device for simulating frictional wear behaviors of threaded joints of a drill pipe under turbid seafloor environment, including a support, an oil cylinder, upper and lower specimens, a first motor, several second motors, stirring rods, a turbidity sensor, and a test tank. The oil cylinder and test tank are arranged on the support. A piston rod of the oil cylinder is connected to the first motor. A rotating-speed sensor is arranged on a bottom surface of the first motor, facing toward an output shaft of the first motor. The output shaft of the first motor is connected to an upper end of a torque limiter. A lower end of the upper specimen fits an upper end of the lower specimen under loading of a main shaft of the first motor. The stirring rods are provided at two sides of the test tank.

The invention provides an electric anchor and mooring equipment moment limiting device and a using method, and relates to the field of electric anchor and mooring equipment. The anchor and mooring equipment comprises an anchor and mooring equipment base and a motor installed on the top of the anchor and mooring equipment base through external bolts. The speed reducer is fixed at the power output end of the motor; the main shaft assembly is fixed at the power output end of the speed reducer; the locking assembly is arranged outside the main shaft assembly, and the limiting assembly is arranged outside the locking assembly; the main shaft assembly comprises a cable main shaft fixed at the power output end of the speed reducer; the limiting grooves are formed in the surface of the cable main shaft and evenly distributed at equal intervals, and a plurality of strain gauges which are evenly distributed at equal intervals are embedded in the surface of the cable main shaft. By means of the locking assembly, the piston rod can drive the tail magnet to be inserted into the limiting groove, mechanical locking is conducted on the cable main shaft, stability is high, and after the motor fails, the cable main shaft can be rapidly locked and fixed.

A sheet alignment device includes a roller that moves a sheet on a sheet transport route so that a side edge of the sheet abuts against an alignment member, a first one-way clutch that transmits a first rotative driving force for making a roller support device pivot upward with respect to the shaft of the roller support device, when a motor rotates in a first direction, a first torque limiter that disconnects the transmission of the first rotative driving force, when a rotation control device limits the rotation of the shaft, a second one-way clutch that rotates with a second rotative driving force, and making the roller support device pivot downward, when the motor is stopped, and a second torque limiter that stops the rotation of the shaft, by being subjected to a rotational torque of the second one-way clutch.

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 invention relates to the technical field of electrostatic mist sprayers, and discloses an orchard electrostatic mist sprayer three-dimensional spraying device based on distance self-adaption, the orchard electrostatic mist sprayer three-dimensional spraying device comprises an electrostatic mist sprayer, a nozzle and a torque limiter, one side of the electrostatic mist sprayer is provided with an expansion assembly, and one side of the electrostatic mist sprayer is provided with an adjusting assembly; the expansion assembly comprises a fixing bin, a two-way lead screw is rotationally embedded in the fixing bin, the two-way lead screw is connected with two sets of threaded blocks through a ball nut pair, one sides of the outer surfaces of the two sets of threaded blocks are fixedly connected with connecting rods, and one sides of the outer surfaces of the two sets of connecting rods are fixedly connected with baffles. The invention aims to solve the problems that when an existing orchard electrostatic mist sprayer works in a close-planting and closed crop environment, most nozzles directly spray mist to canopies, an active dredging mechanism for branches and leaves is lacked, dense fruit and vegetable branches and leaves can directly shield a mist droplet transmission path, and consequently mist droplets are difficult to penetrate into the canopies.

The utility model relates to the technical field of straw smashing equipment, in particular to straw returning and smashing equipment. Straw returning and smashing equipment comprises a rack and an upper cover, the detachable upper cover is installed at the upper end of the rack, a traction frame is fixedly connected to the front end of the rack, a connecting frame is fixedly connected to the upper portion of the front end of the rack, a first bearing table and a second bearing table are connected between the connecting frame and the traction frame, and a gearbox is installed on the first bearing table; an output shaft on one side of the gearbox is connected with a torsion limiter, one side of the torsion limiter is connected with a driven shaft, and the driven shaft is connected with a smashing mechanism through a transmission device. According to the crushing disc, the crushing teeth can be directly detached and replaced when damaged, other parts do not need to be detached, and operation is easy and fast; and secondly, if the crushing mechanism is clamped by hard objects during working, the torque limiter can automatically disconnect power transmission of the output shaft and the driven shaft due to overtorque, so that the crushing mechanism and other parts are prevented from being damaged, the defects in the prior art are overcome, and the practicability is high.

Providing a cam clutch that has a torque limiter function adaptable to high torque with a simple structure, excellent accuracy, stability, and durability, and can be downsized and have an increased service life. The cam clutch includes: a plurality of cams disposed in a circumferential direction between at least one pair of an inner ring and an outer ring that are coaxial with each other and rotatable relative to each other; and biasing means for biasing the plurality of cams so as to come into contact with the inner ring and the outer ring. Each of the cams includes an inclination restricting portion that restricts inclination of the cam in an engaging direction by coming into contact with a locking portion that is provided in a portion of the cam clutch other than cam receiving surfaces of the inner ring and the outer ring.

The braking system (10) sets a torque limit and includes a torque limiter assembly (48) associated with the electromechanical actuation system. The torque limiter assembly (48) includes a ring gear (62) that meshes with a planetary gear set (70), and the ring gear (62) includes a first race (86) that extends circumferentially thereof. The torque limiter assembly (48) includes a preload member having a second race (88) that extends circumferentially thereof. Balls or rollers (84) are engaged between the first race (86) and the second race (88). The first race (86) and / or the second race (88) includes a series of peaks and valleys and slopes extending therebetween. Below the torque limit, the balls or rollers (84) are engaged within the valleys, keeping the ring gear (62) rotatably captured and causing the planetary gear (70) set to orbit. Above the torque limit, the balls or rollers (84) slide over the peaks, rotating the ring gear (62) and keeping the planetary gear set (70) rotatably captured.

A brake system comprising a torque limiter assembly that sets a torque limit and associated with an electromechanical actuation system. The torque limiter assembly comprises a ring gear meshed with two or more planetary gears, the ring gear comprising a first race extending circumferentially therearound. The torque limiter assembly comprises a pre-loaded member comprising a second race extending circumferentially therearound. Balls are engaged between the first and second races. The first and / or second races comprise a series of peaks and valleys, and slopes extending therebetween. Below the torque limit, the balls are engaged within the valleys causing the ring gear to remain rotationally captive and the planetary gears to orbit. At and above the torque limit, the balls slip over the peaks, causing the ring gear to rotate and the planetary gears to remain orbitally captive.

The invention discloses a detection device for a torque limiter. The detection device comprises a torque limiter detection station, a driving assembly, a transmission piece, a pressurizing piece and a locking piece, the driving assembly is arranged below the torque limiter detection station, and the rotating end of the driving assembly is used for installing the torque limiter; the transmission piece is arranged above the torque limiter detection station and is connected with the torque limiter; the first distance between the pressurizing piece and the transmission piece is adjustable, and the loading force of the loading assembly is inversely proportional to the first distance; when the first distance is smaller than or equal to the locking distance, the locking piece is located at the locking position and abuts against the pressurizing piece. In the rotating process of the transmission piece, the working conditions of the torque limiter under different loads are simulated by changing the position of the pressurizing piece; meanwhile, the first interval is set to be smaller than the locking interval, the locking piece is made to move to the locking position, the locking piece is used for limiting the pressurizing piece, it is ensured that the torque limiter enters the slipping state, and therefore the detection precision in the two states is guaranteed.

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.

To provide a new torque limiter capable of preventing a lubricant flowing out from an external apparatus from entering the inside of an outside member as much as possible.SOLUTION: A circular recessed part 10 or an annular recessed groove side 210b continuously extending in the peripheral direction is formed in the center of axial both side end surfaces of an inside member 4, and cylindrical preventive walls 42 and 48 entering the recessed part 10 or the recessed groove side 210b are formed in a pair of support walls 26 and 46.SELECTED DRAWING: Figure 1

Vehicle steering system comprising: an input configured to receive a signal (42) representing a target steering angle (δDES); an output configured to provide a torque output command to a steering motor based on the target steering angle (δDES); and a torque limiter module (54) configured to receive the torque output command and apply a torque limit (TDE, TMAX, TLIMIT) to it before providing it to the steering motor (24b), wherein the torque limit (TDE, TMAX, TLIMIT) is dynamically configurable based on at least one vehicle parameter, the at least one vehicle parameter being a steering input parameter applied by a driver; wherein the torque limiter module (54) is configured to maintain the motor torque value as long as a steering input parameter applied by the driver is below a first threshold, the threshold being non-zero.wherein a maximum permissible system torque (TMAX) corresponds to an upper torque threshold (TMAX_AB) as long as the steering input parameter (TFAHRER) is less than a first threshold; wherein the torque limiter module (54) is configured to limit the engine torque value to reduce the influence of the signal proportional to an increase in the steering input parameter applied by the driver when the steering input parameter applied by the driver is above the first threshold and below a second threshold that is higher than the first threshold; and wherein the torque limiter module (54) is configured to reduce the engine torque value to essentially zero when the steering input parameter applied by the driver reaches or exceeds the second threshold; wherein the target steering angle (δDES) is specified by an automated driving control device (6).

The invention provides a crane fifth supporting leg state detection system, which comprises a fifth supporting leg, a telescopic oil cylinder, a metal spacer bush arranged in the telescopic oil cylinder and provided with a detection surface a, a detection surface b and a detection surface c, and the detection surface b is concave downwards relative to the detection surface a and the detection surface c; the stretching-in-place detection switch and the retracting-in-place detection switch are installed at the lower limiting position and the upper limiting position of a telescopic oil cylinder of the fifth supporting leg respectively and used for detecting the state of the detection face of the metal spacer bush; the chassis controller is used for receiving a signal of the detection switch, processing the state information of the fifth supporting leg and sending the state information of the fifth supporting leg to the boarding moment limiter; the loading moment limiter receives the state information of the fifth supporting leg and calls the operation performance of the crane according to the state information; the lifting operation safety of the crane can be guaranteed, and the accident risk caused by manual judgment errors of the fifth supporting leg and the risk that the supporting leg is collided and damaged due to the fact that the fifth supporting leg does not retract in place are eliminated.

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.

The present invention relates to a universal power modulator, comprising: a variable force multiplier, comprising: a sun gear (1) connected to an input end of the modulator, a floating ring gear (4), a first group of a plurality of interconnected pinions (2) meshed with the sun gear (1) and the floating ring gear (4), wherein the first group of a plurality of interconnected pinions (2) is connected to an output end of the modulator; a force reactor, comprising: a sun gear (1), a floating ring gear (4), a second group of a plurality of interconnected pinions (3), the second group of a plurality of interconnected pinions (3) meshed with the sun gear (1) and the floating ring gear (4); and a rotary motion actuator, comprising: a sun gear (1), a fixed ring gear (7), a third group of a plurality of interconnected pinions (6), the third group of a plurality of interconnected pinions (6) meshed with the sun gear (1) and the fixed ring gear (7), and the third group of a plurality of interconnected pinions (6) and the second group of a plurality of interconnected pinions (3) are connected via a torque limiter (5).

An aircraft includes a first propulsion unit, a second propulsion, and a controller configured to increase thrust output in one of the first propulsion unit or the second propulsion unit in response to a detected thrust reduction from the other of the first propulsion unit. Each of the first propulsion unit and the second propulsion unit include a rotor driven by a gas turbine engine with a drive shaft, an output shaft coupled between the drive shaft and the driven rotor and a mechanical coupler for decoupling the output shaft from the drive shaft.

The integrated torque limiter assembly comprises a shock absorber unit, a limiter unit and a flexible disc, the shock absorber unit comprises a driven disc, a shock absorption disc, a first belleville spring, a first friction face shock absorption lining, a disc hub and a second friction face shock absorption lining, and the first belleville spring, the first friction face shock absorption lining, the disc hub and the second friction face shock absorption lining are sequentially arranged between the driven disc and the shock absorption disc. A first bent part facing the left side is arranged on the periphery of the driven disc, so that the driven disc body forms a middle sedimentation platform relative to the first bent part. The limiter unit comprises a supporting disc, a pressing plate and a flywheel, friction plates are riveted and fixed to the left side and the right side of the supporting disc, the supporting disc is connected with the shock absorber unit through second rivets, and a second bent part which faces the right side and is inserted into the flexible disc is arranged on the periphery of the pressing plate. The torque limiter solves the problems that an existing torque limiter is large in part number, large in size and high in cost.

The utility model discloses an automobile electric small door double-damping clutch actuator which comprises a motor, a first transmission assembly and a second transmission assembly, and the second transmission assembly is connected to the output final stage of the actuator. The first transmission assembly comprises a first input component, a first output component coaxial with the first input component, and a first torque limiter. The second transmission assembly comprises a second input component in meshing transmission with the first output component, a second output component coaxial with the second input component, a second torque limiter and a one-way transmission part, wherein the second torque limiter and the one-way transmission part are arranged between the second input component and the second output component. The limit torque of the first torque limiter is larger than the limit torque of the second torque limiter, and the one-way transmission part is arranged to fix the second input component and the second output component on the torque transmission path in the opening direction and release the second input component and the second output component on the torque transmission path in the closed direction.

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 assembly tool for rapidly positioning an integrated torque limiter bolt comprises a fixed bottom plate, a positioning mandrel, a bolt guide sleeve, a holding handle and a connecting bolt. The center of the fixed bottom plate is sleeved with the positioning mandrel, six fixing holes are evenly formed in the fixed bottom plate around the center, and the bolt guide sleeves are fixedly connected with the fixing holes respectively. And the holding handle is connected with the positioning mandrel through a connecting bolt. The tool is attractive in appearance, exquisite in process, simple in structure, reliable in performance, convenient to install and use, high in practicability and capable of effectively reducing the labor intensity of operators, improving the takt and reducing the manufacturing cost when used on an assembly line.

Described is a retainer assembly for securing a first component relative to a second component using a fastener. The retainer assembly includes a modular clip with a cylindrical body featuring a through hole for the fastener shank and an arm. A base component with a retainer secures the first component and contains a limiter aperture to accommodate the cylindrical body. Additionally, multiple alignment apertures are arranged around the limiter aperture, each corresponding to a specific orientation and to receive a portion of the arm for secure positioning.

The utility model belongs to the technical field of electronic aluminum foil casting equipment, and relates to an inner guide type oil cylinder shear pin type torque limiter which comprises a shell and a connecting piece, and the top of the shell is connected with jacked equipment; the connecting piece is arranged in the shell, and the lower portion of the connecting piece is fixedly connected to an oil cylinder plunger rod head flange. A cover plate is arranged on the upper portion of the connecting piece, and a shear pin is arranged between the cover plate and the connecting piece. And a transmission piece for transmitting torque is arranged between the cover plate and the shell. When the torque is larger, the shear pin is sheared off, so that the plunger rod of the oil cylinder below is protected from being affected by the torque, and an inner guide key and a key groove of the cylinder body in the oil cylinder are protected from being damaged.