21 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 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.

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 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.

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.

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.

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.

The invention discloses a torque multiplier for aero-engine nut part assembly, which comprises a shell, a sealing ring and a reduction gearbox upper cover are fixedly mounted above the shell, an input shaft is movably mounted in the shell through a bearing, and a torque amplification mechanism is mounted in the shell; the torque amplifying mechanism comprises an input gear, a transmission shaft, a large transmission gear, a small transmission gear and an output shaft assembly, and the large-torque nut installation device has the beneficial effects that through structural optimization and application of the visual inspection technology, the problems that existing equipment is low in efficiency, difficult to assemble and the like are solved, and the installation efficiency is improved. The assembling process is easier, faster and more visual, and the effect is remarkable.

The utility model discloses a portable torque multiplier auxiliary installation device, and relates to the technical field of torque multipliers. The portable torque multiplier comprises a portable torque multiplier body and further comprises a torque multiplier body, the input square groove is formed in the top of the portable torque multiplier body, a first output rod is arranged at the bottom of the portable torque multiplier body, the bottom of the portable torque multiplier body is sleeved with a retention ring, and one side of the retention ring is fixedly connected with an extension rod; and the positioning frame sleeves the surface of the extension rod. The first output rod is sleeved with the sleeve, then the first output rod is arranged on a bolt needing to be screwed or loosened in a sleeved mode, then the first output rod is matched with the reaction arm and the connecting arm to support a reaction fulcrum, and at the moment, the first rotating disc can be rotated to enable the rotating rod to enable the first bevel gear to be meshed with the second bevel gear to rotate; and the movable plate can move and extend out in the connecting arm in a limiting manner, so that the application range of the reaction fulcrum can be expanded.

The invention belongs to the field of aero-engine metering and testing, and provides a torque multiplier calibration device and method.The device comprises a fixing base, a torque loading mechanism and a torque measuring mechanism, and a calibrated torque multiplier is fixed to the side face of the fixing base; the axis of the torque loading end and the axis of the torque output end of the calibrated torque multiplier are both in the horizontal direction. The torque loading mechanism comprises a lever installed on the torque loading end, one end of the lever is a weight platform, and the torque output by the torque loading end is zero when no weight is placed on the weight platform in the initial state. And the torque measuring mechanism is arranged at the torque output end and is used for measuring a torque value output by the torque output end. According to the device, torque can be loaded at the input end in the vertical direction, the accuracy of the input torque is greatly improved, and the accuracy and reliability of calibration data for calibrating the multiple of the torque multiplier can be ensured.

The utility model relates to the technical field of torque multiplier detection, in particular to a torque multiplier detector. A torque multiplier detector comprises a workbench, the workbench is provided with a torque loading structure, the torque loading structure is used for being connected with one end of a detected torque multiplier, the end, away from the torque loading structure, of the detected torque multiplier is used for being fixed to the workbench, and the workbench is further provided with a detection structure. And the detection structure is used for simultaneously detecting torque values at two ends of the detected torque multiplier. The torque multiplier detection device has the advantages that the detection structure detects the torque values at the two ends of the detected torque multiplier at the same time, the torque values at the two ends of the detected torque multiplier are synchronously obtained as much as possible, the error of the calculated amplification factor is reduced, and the detection precision of the torque multiplier is improved.