459 results about "Torque limiter" patented technology

The present disclosure relates to a torque limiter including a flywheel; a first axial bearing part; the second axial bearing part and the first axial bearing part are relatively fixed in the axial direction, and a certain distance is formed between the second axial bearing part and the first axial bearing part; the torque input disc is fixed relative to the flywheel in the radial direction and drives the flywheel to integrally rotate around the rotation axis; and the driven disc is used for outputting torque. The torque input disc and the driven disc are axially disposed between the first and second axial load bearing portions, the torque input disc being closer to the first axial load bearing portion and the driven disc being closer to the second axial load bearing portion. The torque input disc and the driven disc abut against each other with a certain axial force, and the driven disc is driven to rotate around the rotation axis through the friction force between the torque input disc and the driven disc. The present disclosure also relates to a transmission assembly including such a torque limiter and a vehicle including the transmission assembly.

A torque limiting coupling assembly shields a valve actuator from abnormally high levels of torque. In normal operation, an actuator coupling transfers a driving torque from an actuator coupling to a valve shaft coupling and the valve shaft coupling engenders a shaft torque on a shaft of a valve. In torque actuated operation, when a counter torque applied to the shaft coupling exceeds a threshold value, the actuator coupling freely rotates relative to the valve shaft coupling and the driving torque is transferred to a biasing element of the torque limiting coupling assembly rather than to the valve shaft coupling, thereby shielding the valve or the actuator from high levels of torque.

A rotating power tool assembly may include a rotating power tool and a torque control accessory. The rotating power tool may include a tag sensor and an electronic torque limiter operably coupled to an electric motor and a spindle. The electronic torque limiter being controllable by control circuitry to adjust a maximum torque output to the spindle. The torque control accessory may include a torque indicator tag and a visible torque value indicia. The torque control accessory being removably attachable to the rotating power tool. The torque indicator tag being configured to output a tag signal that indicates a maximum torque value associated with the torque control accessory for receipt by the tag sensor to control the torque limiter. The visible torque value indicia may also indicate the maximum torque value.

An automobile hub bearing load friction torque testing machine and a testing method thereof relate to the technical field of bearing testing, and the automobile hub bearing load friction torque testing machine comprises a driving assembly, a mechanical shaft suspension assembly, a test bearing tool assembly, a friction torque measuring assembly and an axial loading assembly which are sequentially connected to the upper part of a testing machine tool body; a loading connector assembly is arranged outside the mechanical shaft suspension assembly, and the axial loading assembly and the radial loading assembly arranged at the lower part of the test machine tool body are connected with the loading connector assembly; a hydraulic bearing suspension system and a clutch mounting seat are fixed on a mounting bottom plate B of the friction torque measuring assembly at intervals, a dynamic torque sensor is fixed on a left side panel of the clutch mounting seat, and the hydraulic bearing suspension system and the dynamic torque sensor are fixedly connected through a torque limiter and a coupler in sequence. The right side of the dynamic torque sensor is connected with an electromagnetic clutch; the defect that in the prior art, the additional torque of a hydraulic / pneumatic bearing cannot be removed is overcome, and torque measurement is more accurate.

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.

A media feeding apparatus includes a feed roller, a separation roller, a torque limiter, a unit, a pressing portion, and a reaction-force generator. The feed roller feeds a medium. The separation roller faces the feed roller and is located on a rotation shaft to which power is not transmitted. The torque limiter is located on the rotation shaft. The separation roller is driven by the feed roller when a torque greater than a predetermined torque is applied to the torque limiter. The unit supports the rotation shaft. The pressing portion applies a pressing force to the unit to swing the unit in a direction in which the separation roller is pressed against the feed roller. The reaction-force generator generates a reaction force to swing the unit in a direction in which the separation roller moves away from the feed roller as the separation roller rotates.

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.

The utility model discloses a bidirectional testing device for a two-axis torque limiter, relates to the field of workpiece performance testing, solves the problems that an existing loading testing function is single in test, the reliability of a test result is not high, and the workpiece performance cannot be accurately evaluated, and comprises a test bed, a workpiece clamp arranged on the test bed, an axial loading piece and a lateral loading piece. The workpiece clamp comprises a base arranged on the test bed, a fixing plate for installing a workpiece, a test rod arranged on the base and a limiting ring coaxially arranged at one end of the test rod, the limiting ring and the workpiece are located on one side of the fixing plate, the fixing plate is arranged on the base, and the limiting ring is arranged on the base. A grating ruler for measuring displacement is arranged between the base and the test bench, and a locking piece is arranged between the test rod and the base; the output end of the axial loading piece can abut against the test rod, and the output end of the lateral loading piece can abut against the limiting ring. The method has the effect of improving the reliability of the test result.

The invention relates to a power transmission mechanism for actuating a movable component of an item of household equipment, having a plurality of power transmission branches arranged in parallel for moving a linearly movable coupling part for push and / or pull-transmitting coupling with this movable component, wherein the power transmission branches are provided sequentially depending on sections of a limited movement range of the coupling part and at least one of the power transmission branches includes a torque limiter.

The invention relates to a construction kit (1) comprising a one-piece flywheel (2), which can be screw-connected directly to a crankshaft of an internal combustion engine, and a torque limiter (3) for transferring torque from the internal combustion engine to a downstream gearbox of a vehicle drive train, wherein the torque limiter (3) comprises two friction linings (4) between which a torque transfer plate (5) is clamped, and wherein one of the friction linings (4) is in contact with the flywheel (2). The invention also relates to a vehicle drive train comprising an internal combustion engine, a gearbox and a construction kit (1) according to the invention arranged / interposed between them.

The invention belongs to the field of wheel type driving, and discloses a wheel type driving anti-skid and anti-sinking device convenient to mount and dismount, which comprises a central mechanical body, a flexible body connected with the central mechanical body, a tightening rope penetrating through all fan blades of the flexible body and entering the central mechanical body, and an execution program, the central mechanical body comprises a winding wheel, a torsion limiter, a winding wheel coaxial gear, a pawl, a pawl shifting rod mechanism and a central gear, the torsion limiter is located between the winding wheel and the winding wheel coaxial gear, the winding wheel coaxial gear drives the winding wheel to rotate through the torsion limiter, the flexible body is provided with a protruding body, and the protruding body is connected with the pawl shifting rod mechanism. The protruding body enables the contact area between the flexible body and the ground to be increased; in the using environment, the road surface can be used for non-paving road environments such as sand, mud and gravel, can also be used for road environments with snow accumulation and freezing rain freezing in winter, and plays a role in various scenes.

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.

The utility model relates to the technical field of self-service equipment, and provides an anti-pinch gate mechanism and financial self-service device.The anti-pinch gate mechanism comprises a rack, a gate, a motor, a self-locking assembly and a torque limiter; the gate is arranged on the machine frame in a sliding mode, the motor is arranged on the machine frame, the motor is connected with the torque limiter, the torque limiter is connected with the self-locking assembly, and a gear of the self-locking assembly is meshed with a rack on the gate. By arranging the torque limiter, when the gate makes contact with the hand of a user, the gate bears resistance, the force is fed back to the torque limiter, the torque limiter and the self-locking assembly slip, a shaft of the self-locking assembly loses rotating force, the gear stops rotating, then the gate stops moving, and the situation that the gate plate clamps the hand of the user is avoided; the anti-pinch function is always in an effective state, so that the operation safety of the user is ensured; the gate can be prevented from being opened by a user outside through the self-locking assembly, and safety is guaranteed.

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 utility model discloses a mechanical overload protection transmission device which comprises a transmission shaft provided with a first transmission groove; the transmission wheel is provided with a through hole matched with the transmission shaft, the transmission shaft penetrates through the through hole, and a second transmission groove corresponding to the first transmission groove in the radial direction is formed in the transmission wheel; the torque limiter is arranged in the first transmission groove and comprises a transmission key and an elastic pre-tightening component, and the elastic pre-tightening component applies pre-tightening force to the transmission key, so that the transmission key extends out of the first transmission groove and is kept in radial joint with the second transmission groove under preset torque; when the transmission wheel or the transmission shaft is subjected to overload torque, the transmission key is forced to be separated from the second transmission groove, and the transmission wheel idles relative to the transmission shaft to implement overload protection. In addition, the utility model further discloses a lifting driving system of the shifting machine adopting the mechanical overload protection transmission device and the shifting machine.

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.

The utility model discloses a torque overload protection transmission device, which comprises a torque input component, a torque output component, a torque overload protection component, a torque overload protection component and a torque overload protection component, and is characterized in that the torque input component comprises an input transmission body and an input connector which rotate synchronously; the torque output component comprises an output transmission body and an output connecting body which rotate synchronously, and the output connecting body is provided with a second transmission groove; the torque limiter comprises an elastic pre-tightening part and a transmission part capable of moving in the radial direction of the torque input part and the torque output part; wherein the elastic pre-tightening part applies pre-tightening force to the transmission part, so that the transmission part is simultaneously kept in joint with the first transmission groove and the second transmission groove under preset torque; the torque output component forces the transmission part to move in the radial direction to be separated from the first transmission groove and / or the second transmission groove when bearing overload torque, so that the torque output component idles relative to the torque input component, and overload protection is implemented. In addition, the utility model further discloses a lifting driving system of the shifting machine and the shifting machine.

The invention relates to the field of drilling engineering, in particular to a rock burst drilling tool and a rock burst rock blasting method. The rock burst drilling tool mainly comprises a bypass valve assembly, a liquid distribution valve assembly, a metal motor assembly, a torque limiter assembly, a transmission shaft assembly and a rock burst drill bit, the rock burst drilling tool is of an all-metal structure and is resistant to high temperature, and in the drilling process of a 10000-meter deep part, under the condition of high crustal stress, the rock burst drilling tool can work normally. According to the rock burst drilling tool, the crustal stress of the rock under the drill bit is periodically unloaded, the rock is induced to release energy, and the rock is subjected to tensile failure and rock burst, so that the rock breaking efficiency is improved, the deeper the well is, the larger the rock burst energy is, and the critical geothermal drilling becomes easier.

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).