127results about "Torque measurement" patented technology

The invention discloses an automatic torsion testing machine. The automatic torsion testing machine comprises a first table support, a second table support, a third table support, a fourth table support and stand bars, wherein the framework of the whole torsion testing machine is formed by the first table support, the second table support, the third table support and the fourth table support, the stand bars are installed on the bottom corners of the framework, a working table is arranged above the third table support and the fourth table support, a second part detecting sensor is installed above the third table support and on the working table, and a first part detecting sensor is installed above the fourth table support and on the working table. The automatic torsion testing machine has the advantages that working efficiency is improved, labor intensity of workers is relieved, and the integral advanced level of an enterprise can be improved.

The present invention relates to a drive unit of an electric bicycle, comprising a bearing receptacle which is designed to hold a bearing, wherein the bearing receptacle is designed to be attached directly to a frame interface of the electric bicycle by means of at least one fixing element.

This application discloses a torque detection device, comprising: a strain gauge for deforming under torque; a first strain gauge fixed on the strain gauge, the permeability of which varies with the strain applied to it; a circuit board having at least one first planar coil and the same number of second planar coils as the first planar coil; a second strain gauge disposed on the side of the circuit board away from the first strain gauge, and having the same structure and material as the first strain gauge; and a dielectric layer disposed between the circuit board and the second strain gauge; wherein the first planar coil is disposed opposite to the first strain gauge; the second planar coil is disposed opposite to the second strain gauge; and the thickness and dielectric constant of the dielectric layer are set such that the inductance parameter of the second planar coil responds to temperature changes in a manner that matches the inductance parameter of the first planar coil responds to temperature changes.

The utility model discloses a bow wire torque angle measuring device for measuring the size of the torque angle of the bending on the bow wire. The device comprises: an angle measuring scale, a clamp seat and a connecting base; the surface of the clamp seat is provided with a bow wire accommodating groove, one end of the bow wire accommodating groove abuts on the origin of the angle measuring scale, the extension direction of the bow wire accommodating groove is directly opposite to the origin of the angle measuring scale, and the reading is along the direction directly opposite to the angle measuring scale, so that the size of the torque angle on the bow wire can be accurately read. After the corresponding torque is bent, the doctor places the bow wire on the device to read the torque angle, and judges whether the torque of the bow wire is within the preset range through the reading. Therefore, after using the device, the accurate torque angle can be bent on the bow wire, the influence of the error of manual bending on the force expression effect of the bow wire is avoided, the force of the bow wire is more accurate, the correction effect is more delicate, and the treatment period is shortened.

The invention relates to a system for determining the torque applied between two rotating elements, said system comprising a test body (5) having an inner ring (6) and an outer ring (7) connected concentrically by a deformable structure of N arms (19), each extending between an inner end (19a) and an outer end (19b), said adjacent ends (19a, 19b) being separated by angles Acou and Aban, respectively, and a device for determining an angle between the rings (6, 7) which is a function of the applied torque, each ring (6, 7) being equipped with N means (6a, 7a) for fixing a corresponding ring of the encoder, said fixing means being angularly distributed to form angles ACint and ACext with the nearest arm end (19a, 19b), said angles being such that: 0.25*Aban ≤ ACext ≤ 0.35*Aban and 0.45*Acou ​​≤ ACint ≤ 0.55*Acou. Figure 2a

This utility model discloses a testing platform for new energy vehicles, applied in the field of automotive testing equipment technology. It includes a first mounting base and a second mounting base. Both the first and second mounting bases have grooves on their tops. A lifting seat is installed inside each groove. A movable groove is symmetrically formed on the top of each lifting seat. A movable block is installed inside each movable groove. A support column is installed on the top of each movable block. Limiting wheels are fixedly fitted onto the surface of each support column. An adjusting screw, threadedly connected to the movable block, is rotatably connected inside the movable groove. This utility model, by installing movable blocks on the lifting base, allows the movable blocks to move when the adjusting screw is rotated. This causes the support column on top of the movable block to drive the limiting wheels to contact the outer surface of the vehicle tires. The four limiting wheels limit the movement of the four tires, preventing tire displacement during testing.

The present application relates to hybrid tractor technical field, specifically relates to a kind of based on the effective stress identification method of hybrid tractor load spectrum of multi-mode operating condition, comprising the following steps: S1, the load signal of power output shaft, suspension mechanism and battery management system under multi-mode operation is collected;S2, according to the segment of operating mode switching feature, extract peak value, change rate and energy proportion to generate load feature matrix;S3, combined with engine speed and motor torque curve, calculate dynamic torque distribution coefficient;S4, according to distribution coefficient and energy proportion, resolve and synthesize load spectrum into mechanical and electric drive load spectrum;S5, introduce slope angle and soil adhesion coefficient, correct load amplitude;S6, input equivalent damage model, output component stress nephogram.The present application realizes the effective stress identification and fatigue damage assessment of key components of hybrid tractor under complex working conditions, improves the accuracy of stress calculation and the scientificity of equipment operation and maintenance.

This invention relates to a high-fidelity torque measurement device and method based on resonance suppression and measurement optimization, belonging to the field of high-precision detection technology for spacecraft, and includes a closed-loop measurement scheme in both hardware and software. The device comprises a high-precision triaxial air-bearing stage, a high-frequency torque measurement sensor system, a fiber optic inertial measurement unit, an active control actuator system, and a host computer control and data processing system. The method sequentially achieves precise locking of inertial parameters with variable weights for measurement innovations through pre-test calibration, completes wideband resonance active suppression based on inertial linkage during testing, and achieves mode-free signal purification through variational mode decomposition using multidimensional measurement optimization after testing. This invention overcomes the physical limits of traditional mechanical structures in broadening the measurement bandwidth, eliminates dynamic calibration model mismatch errors, and achieves high-fidelity and robust measurement of wideband dynamic torque, suitable for precise detection of high-frequency micro-vibration dynamic torque in spacecraft actuators.

This invention provides a method for testing the ultimate engagement torque of an electromagnetic jaw clutch, comprising: disengaging the clutch and keeping the driving motor stationary; controlling the driven motor with zero torque and calibrating a braking torque T for a magnetic powder brake connected to the driven side of the clutch, or calibrating a braking torque T for a fixed torque stall function for the driven motor; the driving motor drives the driving side of the clutch to rotate at an engagement speed n1 as the target speed; after the driving motor stabilizes at the engagement speed n1, energizing the clutch to engage the driving and driven sides of the clutch; if engagement is successful and the engagement time is within a preset engagement time range, increasing the braking torque T and repeating the above steps; if engagement fails, or engagement is successful but the engagement time exceeds the preset engagement time range, energizing and stopping the test, and taking the braking torque T of the last successful engagement with an engagement time within the preset engagement time range as the ultimate engagement torque.

A highly accurate torque sensor is provided by reducing the size of the shape. A torque sensor 10 comprises a fourth structure 14 and a fifth structure 15 provided between a first structure and a second structure, a first strain sensor 19 provided on the fourth structure, and a second strain sensor 20 provided on the fifth structure. Each of the fourth structure and the fifth structure comprises a first connection section 14a connected to one end of the first strain sensor or the second strain sensor, a second connection section 14b connected to the other end of the first strain sensor or the second strain sensor, and a third connection section 14c and a fourth connection section 14d provided between the first connection section and the second connection section and possessing stiffness lower than the first connection section and the second connection section.

The present disclosure relates to a method for determining an adverse condition of a powertrain of a vehicle. According to a first aspect, this disclosure proposes a method for determining an adverse condition of a powertrain of a vehicle and comprising one or more shafts. The method comprises determining angular displacement between angular positions of one or more shafts of the powertrain at individual points along the powertrain. The method further comprises determining, based on the monitored angular displacement, an adverse condition of one or more parts of the powertrain. The method further comprises performing an action based on the determined adverse condition. The disclosure also relates to corresponding sensor arrangement and computer program, and to a vehicle comprising the sensor arrangement.

This utility model relates to a six-dimensional torque sensor system. Through integrated circuit design and packaging within the six-dimensional torque sensor, high-precision and highly sensitive deformation sensing and electrical signal conversion output are achieved via strain gauges on the elastic beams of the main frame structure. After specific measurement using a half-bridge differential Wheatstone bridge, the measured signal is amplified, filtered, and converted from digital to analog data by an ADC chip before being sent to a lower-level computer. The lower-level computer then reads the acquired sensor measurement signal, forming a high-precision circuit design specifically matched to the six-dimensional torque sensor. The coordinated installation of the strain gauges, half-bridge differential Wheatstone bridge, and ADC chip makes it less susceptible to environmental factors and effectively suppresses noise interference while achieving high signal gain, effectively realizing the measurement output function of the six-dimensional torque sensor.

This invention relates to an experimental device for torque variation, comprising a base, two columns, a rotating assembly, a suspension assembly, a rotating body, and a counterweight assembly. The two columns are fixedly mounted on the base. The rotating assembly is rotatably mounted on the base, located between the two columns, and has a working surface inclined relative to the horizontal plane. The suspension assembly is horizontally movable and mounted on the two columns, located above the rotating assembly. The rotating body is rotatably mounted at the bottom of the suspension assembly, located between the suspension assembly and the rotating assembly. The counterweight assembly includes multiple gravity rods. These gravity rods are evenly distributed circumferentially along the rotating body and are axially slidably inserted within it. The bottom ends of the gravity rods slide against the working surface of the rotating assembly, applying gravity to the rotating assembly. The rotating assembly is connected to a torque sensor. Its beneficial effect is that it can simulate the dynamic process of torque variation with the position of the point of application under multi-point gravity, providing an effective experimental means for studying torque characteristics.

This application belongs to the technical field of testing devices and discloses an air compressor shaft power testing device, including a housing and a detection motor fixed inside the housing and capable of intelligent drive. A main pulley is fixedly fitted onto the output end of the detection motor. An adjustable mounting bracket is provided on the top of the housing, and an air compressor is detachably connected to the top of the mounting bracket. A driven pulley is detachably connected to the drive shaft of the air compressor. The output end of the air compressor drive motor rotates via a belt connecting the main pulley and the driven pulley. In this application, a torque detection device is first connected to the driven pulley. Then, the detection motor drives the main pulley to rotate. Under the transmission of the belt and the driven pulley, the drive shaft of the air compressor rotates. Simultaneously, the torque detection device measures the torque generated when the driven pulley rotates and, based on the power calculation formula, can determine the operating power of the air compressor, thereby judging the air compressor's energy consumption level, energy-saving effect, and operating efficiency.

This utility model discloses a testing device for a roller cone drill in the field of engineering machinery testing technology. The device includes a roller cone drill, a tensile testing device, a torque testing device, a test line, and an industrial computer. The roller cone drill has a power head transition drill rod, a power head motor, a base, and a chuck. The tensile testing device is connected to the power head transition drill rod through its test drill rod. The upper surface of the sensor pull rod rigidly abuts against the lower surface of the base. The tensile sensor is connected to the industrial computer via the test line to collect the actual value of the winch lifting force. The anti-rotation device of the torque testing device is installed in the chuck slot. The torque sensor is connected to the industrial computer via the test line to collect the output torque of the power motor. This utility model can efficiently and accurately complete the static tensile and torque tests of the roller cone drill without actual drilling or building a dedicated test bench, significantly reducing costs and avoiding the risk of geological interference.

This utility model discloses an encoder-based joint output torque measurement structure, including a fixed component and a motor joint. The motor joint is mounted on the fixed component, and a large flange is installed at the output end of the motor joint. A first connecting shaft is provided inside the large flange, passing through the motor joint. The first connecting shaft and the large flange are an integrated hollow structure. A front bridging flange is connected to the outside of the large flange, and a second connecting shaft is connected to the inside of the front bridging flange. The second connecting shaft is embedded inside the first connecting shaft. A connecting rod is connected to the outside of the front bridging flange. A rear bridging flange is installed at the tail of the motor joint. A large encoder disk is rotatably connected inside the rear bridging flange, and a small encoder disk is rotatably connected inside the large encoder disk. The large encoder disk is fixedly connected to the first connecting shaft, and the small encoder disk is fixedly connected to the second connecting shaft. A control board is connected to the outside of the rear bridging flange. This utility model has the characteristics of long service life and low operating cost.

The utility model provides a kind of double lug shock absorber dynamometer, belong to shock absorber manufacturing technical field, double lug shock absorber dynamometer, including rack, further include: positioning tool, the positioning tool is for vertical fixed workpiece on rack;Pressing mechanism, the pressing mechanism includes first driving part, is located in the pressing seat of first driving part output end and can be along the vertical movement of rack and is used for the pressing assembly of the radial fixed workpiece of setting in pressing seat inboard;And servo loading mechanism, the servo loading mechanism includes the second driving part of setting in the top of rack and is used for the clamping assembly of clamping workpiece lug of setting in the output end of second driving part;The utility model utilizes positioning tool to carry out circumferential fixed workpiece, workpiece is vertically pressed by first driving part drive pressing seat, and utilizes clamping assembly to realize the stable clamping of lug, to carry out stable demonstration power detection subsequently, thus can satisfy the demonstration power detection demand of double lug shock absorber.

Described herein is a sensor device comprising a mounting plate, a flexure plate positioned parallel to the mounting plate having an inner surface facing the mounting plate and an outer surface opposite the inner surface, a wall connected to the flexure plate and the mounting plate, forming an enclosure between the flexure plate and the mounting plate, at least one detector disposed on the mounting plate within the enclosure, an end-effector connected to the outer surface of the flexure plate and configured to transfer applied forces to the flexure plate, at least one mirror attached to the inner surface of the flexure plate opposite the at least one detector, and at least one emitter arm located within the enclosure and attached to the inner surface of the flexure plate, positioned to be visible by the at least one detector via the at least one mirror.

The application provides a torque detection method, system and device of a valve, an electronic device and a storage medium. The method comprises: obtaining detection data of a valve to be detected, the detection data of the valve to be detected being detected by a fiber grating torque sensor installed on a valve stem of the valve to be detected; determining a first torque reference quantity of the valve to be detected based on the detection data and fiber grating torque sensor parameters of the fiber grating torque sensor; obtaining valve stem parameters of the valve stem, and determining a torque of the valve to be detected based on the valve stem parameters and the first torque reference quantity. Through the application, the torque detection accuracy of the valve stem can be effectively improved while ensuring normal operation of the valve stem.

A method for generating a localized data map, the method including (a) traversing an area with a machine, the machine including at least one sensor, wherein the sensor is configured to receive data; (b) collecting data of the area utilizing the sensor; and (c) communicating the data to generate a localized data map. A system and method for generating a localized turf grass data map, the method including (a) traversing an area of turf grass with an outdoor power equipment machine, the outdoor power equipment machine including at least one sensor, wherein the sensor is configured to receive data; (b) collecting turf grass data utilizing the sensor; and (c) communicating the turf grass data to generate a localized turf grass data map.

The present invention relates to a torque transmission arrangement (5) for a drive device (1) of a muscle-powered vehicle. The arrangement (5) has a first torque transmission component (7) with a first circumferential toothing (13), a second torque transmission component (10) with a second circumferential toothing (17) and a sensor device (11) for measuring a load variable of one of the torque transmission components (7; 10). The first and second circumferential toothing (13, 17) mesh for torque transmission along a toothing circle (K). A play between the teeth (14) of the first circumferential toothing (13) and the teeth (18) of the second circumferential toothing (17) is designed such that contact points (16.1, 16.2, 16.3) are arranged equidistantly to one another along the toothing circle (K).

A portable on-vehicle dynamometer comprises a containment chassis (2), a drum (3) rotatably housed in said containment chassis (2) to rotate around a load shaft (4), mechanical transmission means (5) adapted to connect said load shaft (4) to the hub of a wheel of the vehicle being measured to transfer the motion of the vehicle engine to said drum (3), wherein said mechanical transmission means (5) comprise a connection flange (6) provided with a central axis of rotation and suitable to be fixed stably but removably to the hub of the vehicle wheel, wherein said mechanical transmission means (5) further comprise a CV joint (7) adapted to connect said flange (6) with one end of said load shaft (4) and designed to allow mutual angular regulation between said load shaft (4) and the central rotation axis of said flange (6) with respect to at least one inclination plane.

The utility model discloses an embodiment relates to motor technical field, especially disclose a test fixture for testing motor under test, and test fixture includes dynamometer, fixed part, support and axle seat, and the utility model discloses an embodiment can avoid replacing whole test fixture.

This invention discloses a vehicle powertrain and exhaust gas linkage detection system and method. The system encompasses clamping, damping, exhaust gas treatment, multi-component detection, and a fully closed-loop control system. The roller clamping unit uses a telescopic cylinder to drive an arc-shaped clamping roller, achieving full-range contact with the lower half of the tire to prevent slippage and displacement. Simultaneously, a torque acceleration sensor is directly mounted on the main shaft, ensuring accurate data reflection of the engine status. The damping roller, driven by a motor, gears, and belts, allows for flexible adjustment of damping force, adapting to various operating conditions and providing uniform and stable transmission. The exhaust gas collection unit's height is adjusted by a push cylinder to accommodate different vehicle exhaust pipes, preventing leakage and providing recovery and collision protection. A spray structure separates exhaust combustion products. Multiple detection mechanisms collaborate to complete full-component detection. The control system integrates operating condition damping linkage and synchronous data acquisition, and enables intelligent fault diagnosis and automatic data re-acquisition, comprehensively ensuring reliable test results.

The present application belongs to the technical field of assembly in narrow space, and particularly relates to a compact precise torque and rotation angle control tool. The tool comprises a micro torque sensor, a gear box and a micro rotation angle sensor. The micro rotation angle sensor is arranged on an input shaft of the gear box, and the micro torque sensor is arranged on an output shaft of the gear box. The micro torque sensor is used for measuring the output torque of the gear box. The micro torque sensor comprises a torque shaft, a conductive slip ring and a strain gauge. The torque shaft is connected with the output shaft of the gear box. The strain gauge is arranged on the torque shaft and is used for converting the torsional strain of the torque shaft into a voltage signal. The conductive slip ring is sleeved on the torque shaft and is connected with the strain gauge. After calibration and correction, the tool can be used for measuring the torque and rotation angle in narrow space, and can realize real-time data transmission, abnormal alarm and rapid adjustment during the tightening process of the sensor, thereby further improving the assembly efficiency and precision.

The torque sensor enables the first structure to be correctly mounted relative to the arm. The first structure (11) includes an annular first surface (11a), an annular second surface (11b) parallel to the first surface, a third surface (11c) connecting the outer periphery of the first and second surfaces, and a fourth surface (11d) connecting the inner periphery of the first and second surfaces. An annular second structure (12) is concentrically disposed inside the first structure. A plurality of third structures (13) connect the first and second structures. A plurality of strain sensors (14) are connected between the first and second structures. The first structure has a plurality of protrusions (11f) on a portion of the third surface. Each protrusion (11f) includes an inclined portion (11g) that increases in height from the first surface toward the second surface, and a linear contact portion (11h) extending from the apex of the inclined portion and parallel to the third surface.

The utility model relates to torque test technical field discloses a kind of drying module torque test equipment, including cabinet, the inner chamber of the cabinet is equipped with placing seat, supporting assembly is provided on the placing seat, for supporting drying module to prevent displacement of drying module, the inner chamber of the cabinet is equipped with supporting plate, lifting drive assembly is provided on the supporting plate, drying module can be placed to supporting assembly, it is driven rotary drive assembly to go down by lifting drive assembly set, makes connecting head insert into the molecular sieve of drying module, again by rotary drive assembly driving connecting head to rotate, drive molecular sieve to rotate, again by detection component detection molecular sieve's torque, by the support component set, when again rotary drive assembly drives molecular sieve to rotate, drying module assembly can be positioned, prevent the displacement of drying module to reduce the effect of detection.

The utility model discloses a hinge torque test fixture relates to hinge torque measurement technical field, including fixed ring, the top of fixed ring is equipped with detachable connecting block, the top of connecting block is fixedly connected with the base, the one side fixedly connected with front positioning block of base top, the one side fixedly connected with rear protection board of base top, the one side fixedly connected with rear positioning block of rear protection board. The utility model discloses through setting up rear protection board and rear positioning block to make the plugboard of hinge and insert in the slot of rear positioning block, make the chain plate of one of hinge fixed, extrude through extruding device again to make to prevent the chain plate of hinge from separating from the jack in one step, and the torque measuring instrument drives the rotation of fixed device and another chain plate and carries out the measurement of torque, can fix the whole to the hinge when measuring, ensure the accuracy of measurement.

A bicycle capable of measuring power is disclosed. The bicycle comprises a spider including a torque input section and at least one torque output section; a crank assembly coupled with the spider through the torque input section and applying an input torque to the spider; a chainring mounted to the spider through the at least one torque output section and receiving an output torque from the spider; a gauge disposed and oriented generally along a tangential direction or a quasi-tangential direction with respect to the torque input section and the at least one torque output section; and a circuitry coupled to the gauge and receiving a signal from the gauge.