40 results about "Torque multiplier" patented technology

To improve power efficiency of a synchronous motor in a wide speed range from a low speed to a high speed.SOLUTION: In a pole-number switching method, the current value of AC current supplied to an armature is reduced at low speed by increasing the number of poles and increasing the torque multiplier of the electric motor, thereby reducing copper loss, and loss at high-speed rotation (mainly iron loss) is reduced at high speed by decreasing the number of poles and lowering the voltage and frequency of the AC current supplied to the armature. Furthermore, a further power-efficiency improvement effect is provided by connecting the circuit such that, during driving of the electric motor, inverter power-supply current of an armature winding becomes a power supply for a field winding, and such that, during regenerative braking, current generated from the armature winding is regenerated to a battery efficiently.SELECTED DRAWING: Figure 2

An adaptor device (10) acts between a drive tool (12) (e.g. a power tool) and a driven tool (14) (e.g. fastener engagement tool). The drive tool has a central drive portion and an outer drive portion. The driven tool has at least an outer driven member. The adaptor device transmits drive from the outer drive portion of the drive tool to the outer driven member of the driven tool, which can be detachable from a portion of the adaptor. Retainer means (16) can retain the adaptor device or an outer driven member of a driven tool to an outer drive portion of a drive tool. Splined connections can be crowned or barrelled facilitating misalignment. Optional compliant means (120) between outer driven member and inner driven member enables an amount of radial misalignment. The adaptor device enables reactionless drivers to operate different types of torque multiplier type tools.

The self-adaptive double-layer vibration isolation support comprises a damping vibration isolation pad, I-shaped section steel, a bottom plate, a variable stiffness system and a top plate which are sequentially connected from bottom to top, and reactor equipment, a vibration monitoring device and a stiffness calculation device are installed on the top plate; the variable stiffness system comprises a stiffness coarse adjustment system, a stiffness fine adjustment system and a scissor jack system; the rigidity coarse adjustment system is composed of rigidity coarse adjustment springs which are vertically arranged, the lengths of the rigidity coarse adjustment springs are arranged in an echelon mode, the rigidity fine adjustment system comprises longitudinal cylindrical spiral body springs which are horizontally arranged, and the torque multiplier and the worm mechanism are driven by a motor to change the horizontal and vertical endpoint distance of the scissor jack. And the type and the compression and stretching length of the spring participating in vibration control are adjusted. Compared with the prior art, the vibration isolation support has the advantages that the vibration isolation rigidity of the support is accurately and efficiently adjusted in a self-adaptive mode, and the limitation that in the prior art, vibration isolation supports need to be independently designed for different reactor devices is overcome.

The utility model discloses a valve with a quick butt joint type integrated adapter with a torque multiplier, and relates to the field of valves. The auxiliary mechanism comprises a valve body and a speed reducer, the auxiliary mechanism comprises a first movable plate and a second movable plate, an empty groove is formed in the surface of the speed reducer, a pressing block is arranged at the other end of the second movable plate, and a through groove is formed in the surface of the first movable plate. The abutting block abuts against the edge of the flange, then a rod-shaped tool is used for prizing, the speed reducer and the valve body can be separated more easily, the method is more efficient and convenient compared with a traditional disassembling mode, direct prizing on the edge of equipment is reduced, and therefore the risk of equipment damage is reduced, and when an operator conducts disassembling, the operation efficiency is improved. And a tool does not need to be directly inserted into a narrow gap between the flange and the speed reducer, so that possible hand pinching or other safety accidents are avoided.

A patient support apparatus for supporting a patient comprising a support frame and a support deck coupled to the support frame. The support deck has a deck section arranged to articulate relative to said support frame between a first position and a second position. An actuator is interposed in force-translating relation between the support frame and the deck section to articulate the deck section. The actuator comprises a biasing device configured to store mechanical energy and having an interface. The actuator further comprises a torque multiplier coupled to the deck section and engaged with the interface to translate mechanical energy stored in the biasing device into force acting on the deck section to urge the deck section toward the first position.

The present invention relates to a torque multiplier flywheel comprising: A disc 11 having a hole 12 in the periphery thereof, the hole engaging the pin 14 of the lever arm 13 that has a grooved hole 15 at the opposite end, the grooved hole meshing with the grooves of the shaft 16, characterised in that the torque transmitted to the shaft is multiplied when the torque is transmitted through the lever arm.

The utility model discloses an anchor cable drilling machine multiplier fixing frame, which belongs to the technical field of mining fixing equipment, and comprises a jumbolter and a torque multiplier, the outer side of the jumbolter is fixedly connected with a drilling machine retainer, the two sides of the torque multiplier are connected with handles, the drilling machine retainer is rotatably provided with two symmetrically distributed U-shaped frames, and the two U-shaped frames are fixedly connected with the torque multiplier. A U-shaped clamp is connected to the middle of the U-shaped frame, and a clamping groove matched with the U-shaped clamp is formed in the top of the handle. Through the arrangement of the U-shaped frame, the handle, the U-shaped clamp and the clamping groove, the jumbolter and the torque multiplier are connected with each other, the U-shaped frame is turned over to enable the U-shaped clamp to be clamped into the clamping groove, the fixing effect can be achieved, assembly and disassembly are convenient and fast, manual holding is not needed, safety is higher, fixing is stable, falling off caused by vibration can be prevented, and the service life of the jumbolter is prolonged. And through the arrangement of the two symmetrically-distributed U-shaped frames, the fixing effect is improved.

The application provides an adjustable torque multiplier checking device and relates to the technical field of torque multiplier checking. The bottom support is provided with linear guide rails on both sides, a moving frame is slidably installed on the upper side of the linear guide rails through a sliding seat, an installation plate is fixedly installed on the lower side of the bottom support, a multiplier fixing plate is fixedly installed on the upper side of the bottom support, a large-range torque sensor is fixedly installed on the upper surface of the installation plate, a small-range torque sensor is fixedly installed on the inner upper end of the moving frame, and a first adapter is installed on the input end of the large-range torque sensor and the small-range torque sensor. The second adapter is internally provided with a movable shaft which can move up and down, and the foot-operated operation of the control assembly can realize the quick automatic connection and disconnection with the input end of the torque multiplier, significantly reduces the installation process and checking preparation time, simplifies the disassembly and replacement process, and improves the checking preparation efficiency.

The torque multiplier comprises a core transmission assembly, a torsion head, a driving square head and a counter-force mechanism, the torsion head is arranged at the top of the core transmission assembly, the counter-force mechanism is arranged at the bottom of the core transmission assembly, and the driving square head is arranged at the bottom of the counter-force mechanism; the counter-force mechanism comprises a circumferential gear, a connecting plate, a vertical counter-force arm, a limiting sliding groove, a plurality of limiting holes, a sliding block, a spring pressing column, a transverse counter-force arm, a ball sliding groove, a ball limiting groove and an adjusting assembly. The adjusting assembly comprises an adjusting ball, a nut cylinder and a limiting ring. According to the scheme, the bearing capacity of the torque multiplier to counter-acting force is greatly improved, equipment can operate more stably, and torque fluctuation of the output shaft can be obviously reduced.

The utility model relates to the technical field of mechanical assembly, and discloses a simple torsional moment multiplier which comprises a torsional moment multiplier body, the torsional moment multiplier body is rotationally connected with an input shaft, the outer wall of the input shaft is fixedly connected with a main gear, and a plurality of pinions are rotationally installed in the torsional moment multiplier body; a gear ring is fixedly connected to the inner wall of the torsional moment multiplier body, an output block is installed on the outer wall of the bottom of the torsional moment multiplier body, a sleeve is arranged on one side of the output block, a limiting groove is formed in the inner wall of the output block, the output block is slidably connected with two trapezoidal clamping blocks, a butt joint groove is formed in the inner wall of the sleeve, and a clamping groove is formed in the inner wall of the sleeve. The whole replacement process does not need extra tools, the operation steps are simple and easy to understand, the sleeve replacement time is greatly shortened, the working efficiency is remarkably improved, the labor intensity is reduced, the structure is stable and reliable, and the risk that the sleeve falls off during working is effectively avoided.

A housing (12) accommodates actuation means (14) which are adapted to be connected to the control member (D) of a workpiece-holding chuck in order to actuate it along a chuck axis (X) and determine the opening / closure of workpiece-clamping means (1). The actuation means (14) comprise a screw-and-nut transmission (16) which is provided with a first threaded transmission member (16a) which extends along an actuator axis (X') and is adapted to be coaxially connected to the control member (D), and with a second threaded transmission member (16b) in irreversible rotary-translational engagement with the first threaded transmission member (16a). Torque multiplier means (18) are provided with a rotary input member (18a) and with a rotary output member (18b) which is integral in rotation with the second threaded member (16b) and is operatively connected to the rotary input member (18a) in a torque multiplication ratio.

The utility model discloses an electric transmission four-wheel-drive backfill compactor which comprises an engine, a main controller and driving wheels and further comprises an FISG generator for converting mechanical energy of the engine into electric energy, an FISG generator controller for controlling the output power of the FISG generator and a high-voltage distribution box PDU. Four driving wheels are arranged, and the torque increasing devices are arranged on the driving wheels; the high-voltage distribution box PDU is connected with the four driving wheels through a traction motor and a speed reducer; the main controller is connected with the engine, the FISG generator controller, the high-voltage distribution box PDU and the four driving wheels. The FISG generator is used for converting mechanical energy into electric energy, the traction driving wheel drives the backfill compactor to walk, the transmission efficiency is high, energy is saved, and the environment is protected; the arrangement of the four drives and the torque booster is suitable for complex road conditions, the tractor and the speed reducer adjust the rotating speeds of the four driving wheels at the same time to be matched with the adjustment of the torque, the backfill compactor can get out of trouble in time, and the working efficiency is improved; the whole machine is stable in performance, energy-saving and environment-friendly.

The application discloses a large-torque nut dismounting and tightening device, which comprises a base, a supporting and clamping assembly, a supporting rod assembly, a first chuck assembly and a force applying and driving assembly. The supporting and clamping assembly is used for clamping a locking nut arranged on a second end long shaft from two opposite sides of the second end long shaft. The first chuck assembly is used for clamping a locking nut arranged on an outer circle of a first end long shaft. The first chuck assembly has lever shafts extending into cantilever arms along opposite sides of the first end long shaft. The force applying and driving assembly is vertically arranged on the base and has upper ends connected to outer side ends of the lever shafts, so that the first chuck assembly can be clamped and rotated by a set angle under the action of a downward pressure to be dismounted or tightened. The device is particularly suitable for a test bench without space for using a torque multiplier. The device can avoid damaging fasteners and equipment by drilling and cutting on site, and greatly improves the dismounting efficiency.

The utility model relates to a helicopter tail rotor hub inner and outer cup nut disassembling and assembling device which comprises a tail rotor hub shell fixing device, a torque transmission device and a torque multiplier, and the output end of the torque multiplier is vertically connected with one end of a torque multiplier reducing sleeve; the tail rotor hub shell is rotationally mounted on a working table of the tail rotor hub shell fixing device; the torque transmission device comprises a sliding rod and a wrench; a first vertical plate and a second vertical plate are arranged on the working table and located on the two sides of the tail rotor hub shell. The bottom end of the wrench can be clamped in a tooth groove of the inner cup nut or the outer cup nut, and the top end of the wrench can be perpendicularly arranged at one end of the sliding rod in a sleeving mode. The other end of the sliding rod is vertically sleeved with the other end of the torque multiplier reducing sleeve. According to the scheme, the operating torque can be reduced, the torque applied to the nut during disassembling and assembling is stable, a product is not damaged, the labor intensity is reduced, and the labor efficiency is improved.

The utility model relates to the field of underwater ROV tools, in particular to an underwater high-precision intelligent torque wrench which comprises a machine shell and a torque output connector, the torque output connector is installed on the machine shell, and a hydraulic motor, a torque sensor, a torque multiplier and an encoder are installed in the machine shell. The two ends of the torque multiplier are connected with the torque sensor and the torque output connector through couplers respectively, and the output shaft end of the torque output connector is connected with the torque sensor through a coupler. A display control unit is installed on the machine shell. The display control unit is electrically connected with the encoder and the torque sensor. A locking mechanism used for locking the torque output connector is installed on the machine shell. The torque response speed of the torque wrench can be increased.

The present invention relates to the technical field of torque multipliers, and discloses a torque calibration device for a torque multiplier, comprising a workbench, an output slot, an output slot is provided on the left side of the middle top of the workbench, a ring, rotatably connected to the inside of the workbench, a torque tester, a torque tester is passed through and installed on the middle top of the workbench, a sleeve, the sleeve is installed on the top of the torque tester, a torque multiplier, the torque multiplier is installed on the top of the sleeve, and a rotating assembly, wherein the rotating assembly comprises a rack, an output rod, and a placement slot. In the present invention, rotating the handle can drive the gear to rotate, and at the same time, the gear and the rack are meshed to drive the ring to rotate, and when the ring rotates, the output rod and the placement slot are driven to move, and the torque wrench is applied through the placement slot to rotate the adjustment disk, so as to prevent the manually pushed torque wrench from sliding and tilting, resulting in the inability to fully apply the torque to the input end of the torque multiplier, causing deviations in the test data.

The valve opening and closing auxiliary device comprises a connecting shaft, one end of the connecting shaft is connected with a valve opening and closing clamping assembly through a fixed connecting sleeve, the end, away from the fixed connecting sleeve, of the connecting shaft is connected with a torque multiplier, and the input end of the torque multiplier is connected with a power conveying shaft; a torque multiplier is arranged at one end of the power transmission shaft, a counter-force arm is arranged on the torque multiplier, a supporting frame is fixedly arranged at the bottom end of the counter-force arm, the other end of the power transmission shaft is connected with an L-shaped rotating handle, and an electric driving assembly is detachably arranged on the power transmission shaft. The hand wheel disc clamping and limiting device can effectively clamp and limit hand wheel discs of different specifications, so that the whole device can adapt to opening and closing auxiliary work of valves of different specifications, meanwhile, the hand wheel disc clamping and limiting device has a manual mode and an electric mode, manpower consumption is greatly reduced, efficiency is improved, and operation risks are reduced.

The application discloses a nut dismounting device for long shaft parts, and belongs to the technical field of aero-engine part assembly, which comprises a mounting frame, a torque multiplier, a first support, a first wrench, an anti-rotation support plate, a connecting support plate, a supporting ring, a second wrench and a second support; the first support is used for being connected to the mounting frame; the anti-rotation support plate is connected with a second nut; the torque multiplier is used for driving the output shaft to rotate through the first wrench, and then assembling or disassembling the second nut; the second support is used for replacing the first support; the supporting ring is used for replacing the anti-rotation support plate; the supporting ring is used for being connected to the mounting frame through a first end and fixing the torque multiplier through a second end; the second wrench is used for replacing the first wrench and being connected to a spline shaft sleeve on the output shaft; and the torque multiplier is further used for driving the output shaft to rotate through the second wrench, and then assembling or disassembling the first nut. The application can realize the quick assembly and disassembly of the second nut and the first nut on the output shaft, and can improve the assembly quality.

A torque wrench is disclosed for use in rotating a fastener. The torque wrench may include an input end configured to receive a torsional input, a housing, and a gear train disposed inside the housing and operatively driven by the torsional input. The torque wrench may also include a torque multiplier disposed inside the housing and connected to the gear train, and an output end operatively driven by the gear train to produce a torsional output.

A drive axle system and a method of control. The method includes providing propulsion torque with an electrical machine to a vehicle wheel based on a torque command signal. A propulsion torque utilization amount is based on the torque command signal. A regeneration torque multiplier is based on the propulsion torque utilization amount and a signal indicative of speed of the vehicle. Regenerative brake torque is provided with the electrical machine to the vehicle wheel based on the regeneration torque multiplier.

One embodiment of the present application provides a rotor shaft locking nut dismounting device and method. The axial locking force of the locking nut is "unloaded" or "loaded" by a hollow hydraulic cylinder and each force transmission part, and the wrench torque is amplified by a large gear and a small gear and a torque multiplier, so that the dismounting and mounting of the heavy load locking nut of the helicopter rotor shaft are solved, the heavy load locking nut is not damaged and can be reused, and the helicopter rotor shaft disassembly and assembly are ensured and facilitated.

The present invention is directed to a load bearing direct-drive system and a variable process control system for efficiently managing the operation of fans in a cooling system such as a wet-cooling tower, air-cooled heat exchanger (ACHE), HVAC system, blowers and centrifugal blowers, mechanical towers or chiller systems. In one embodiment, the load bearing direct-drive system comprises a load bearing torque multiplier device having an output rotatable shaft connected to a fan, and a load bearing motor comprising a rotatable shaft that drives the load bearing torque multiplier device.

The utility model relates to the technical field of torque multipliers, in particular to a torque multiplier for wind power, which comprises an input shaft, a gear piece fixed at the end part of the input shaft, and an output shaft fixed at one end, far away from the input shaft, of the gear piece, and a clamping groove is formed in the side wall of the output shaft. A plurality of sleeves can be arranged on the inner wall of the clamping groove in a clamped mode, and large bolts of different models can be arranged on the sleeves in a clamped mode. The torque multiplier has the effect that the torque multiplier can conduct fastening work on large bolts of different models, and therefore the working range of the torque multiplier is enlarged.

The utility model discloses a turbine rotor fulcrum bearing mounting device which comprises a chassis, and a locking assembly, a first supporting assembly, a first mounting assembly, a second supporting assembly, a second mounting assembly and a third supporting assembly are sequentially arranged from one end to the other end of the chassis. The locking assembly is provided with sleeve teeth used for being matched with a spline of the rotating shaft. The first supporting assembly, the second supporting assembly and the third supporting assembly are all used for supporting a rotating shaft of the turbine rotor. The first mounting assembly and the second mounting assembly are both used for mounting the torque multiplier. The first supporting assembly, the second supporting assembly and the third supporting assembly are arranged for supporting from different positions of the rotating shaft, the locking assembly is arranged for ensuring that the rotating shaft cannot rotate around the axis of the rotating shaft, and the first mounting assembly and the second mounting assembly are arranged for mounting the torque multiplier; by means of the two torsion multipliers which can correspond to the two fulcrum bearings respectively, the two fulcrum bearings can be installed, the turbine rotor does not need to be turned over in the installation process, and safety is higher.

This invention discloses a tightening device and method for spline nuts on aero-engines, belonging to the field of aero-engine assembly technology. The device includes a movable support unit, a locking mechanism, a multi-directional adjustment mechanism, and a tightening gun assembly. The multi-directional adjustment mechanism includes a Z-axis adjustment mechanism, a Y-axis adjustment mechanism, and an X-axis adjustment mechanism, stacked sequentially, used to adjust the position of the tightening gun assembly in the Z, Y, and X directions, respectively. The tightening gun assembly includes an electric tightening gun, a torque multiplier, and a spline sleeve connected in sequence. The spline sleeve has an external spline at its end for engaging with the internal spline interface of the spline nut to be tightened. The method includes locking, alignment, engagement, and tightening / loosening steps. This invention ensures operational stability through the locking mechanism and achieves precise alignment between the spline sleeve and the nut through the multi-directional adjustment mechanism, effectively improving the efficiency, accuracy, and safety of tightening and disassembling spline nuts on aero-engines.

The utility model discloses a tool for testing a static torque sensor by simulating a deep sea working condition, which comprises a shell, an input connecting piece, a plurality of square keys, an output connecting piece and a torque multiplier, and an inner cavity of the shell is used for accommodating the static torque sensor to be tested; the input connecting piece is connected with the upper part of the shell; a plurality of square grooves are formed in the input connecting piece; a plurality of slots are formed in the upper part of the shell, and adjusting screws are arranged in the slots; the output connecting piece is connected with the lower part of the shell; the output connecting piece is provided with a workbench connecting part, and the output connecting piece is fixedly connected with the workbench through the workbench connecting part. The output end of the torque multiplier is connected with the input connecting piece. According to the utility model, the working condition of the static torque sensor in the deep-sea high-pressure environment can be simulated, so that the torque measurement value of the static torque sensor in the deep-sea high-pressure environment can be obtained.

A drive axle system and a method of control. The method includes providing propulsion torque with an electrical machine to a vehicle wheel based on a torque command signal. A propulsion torque utilization amount is based on the torque command signal. A regeneration torque multiplier is based on the propulsion torque utilization amount and a signal indicative of speed of the vehicle. Regenerative brake torque is provided with the electrical machine to the vehicle wheel based on the regeneration torque multiplier.

A rolling bearing press-fitting tooling belongs to the technical field of assembly tooling. The upper end of the fixture body is connected to the lower ends of multiple struts, the upper ends of the multiple struts are fixedly connected to the top plate, a central hole is provided in the middle of the top plate, a fixed sleeve is coaxially sleeved outside the cylinder body of the hydraulic cylinder, and the fixed sleeve is coaxially fixed in the central hole. The hydraulic cylinder is vertically arranged, and the lower end of the piston rod of the hydraulic cylinder is cooperatively arranged with the top nail, and the lower end of the top nail is cooperatively arranged with the middle part of the pressing cover. The pressing cover is placed on the upper end face of the inner ring of the bearing to be press-fitted, and a jack corresponding to the pressing cover is provided in the middle of the fixture body. The present invention facilitates the replacement of the hydraulic cylinder, enables production to be no longer limited by the length of the shaft body and the magnitude of the pressing force required by the bearing, and is applicable to the production requirements of shaft bodies with different lengths and different bearing pressing forces; reduces the axial distance of the reverse torque transmission of the torque multiplier, and reduces the risk of the shaft body itself bearing the reverse torque; can reduce the handling of the shaft body between the fixture bodies and reduce the risk of the shaft body being bruised by collision.

1. Name of the product in this design: Torque multiplier for aviation. 2. Application of this design: Used in aircraft engines and gas turbines to transmit torque. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.