158 results about "Wear testing" patented technology

This invention provides a testing device and method for corrosion and wear testing of sliding guide rails under corrosive environments. The device includes a support module, a drive module, a guide rail, a test slider, a tension sensor, a pull rod, and a test tank module. The test slider is slidably mounted on the guide rail and contains a counterweight to simulate a load. The drive module drives the pull rod to slide along the length of the guide rail. The tension sensor is connected between the pull rod and the test slider. The test tank module holds the test solution to simulate a corrosive environment. This invention features a compact overall structure, simple component installation, and a simple slider force transmission method. It can realistically simulate the corrosion and wear phenomena of the sliding guide rail moving pair under seawater conditions. Furthermore, the adjustable counterweight and replaceable test solution enable this invention to conduct corrosion and wear tests on moving pairs under different load conditions and corrosive environments.

A test method for anti-slip long effectiveness of an anti-slip ceramic tile. The test method includes: performing a wear test on a testing surface of a to-be-tested anti-slip ceramic tile; performing an anti-slip performance test on the worn testing surface, to obtain a wear test value; and determining an anti-slip long effectiveness grade of the to-be-tested anti-slip ceramic tile according to the wear test value. In the embodiments, the worn to-be-tested anti-slip ceramic tile is subjected to the anti-slip performance test, to obtain the anti-slip long effectiveness grade, thus explaining the performance of the worn anti-slip ceramic tile, which is conductive to determining the long effectiveness anti-slip performance of the anti-slip ceramic tile, and provides the long effectiveness anti-slip performance test method and determination basis for the manufacturing of the anti-slip ceramic tile.

The utility model provides a novel flow distribution and wear testing device, include: linear force motor (1), valve core (2), through rod (4), reflector disc (5), laser displacement sensor (8), through rod (4) is connected with linear force motor (1), is driven by linear force motor (1) and does linear motion, valve core (2) is set up on through rod (4), and through rod (4) end is provided with reflector disc (5), laser displacement sensor (8) is set up to reflector disc (5) and is consistent with reflector disc (5) height, is used for emitting laser to reflector disc (5), and obtains the displacement of valve core (2) according to the laser signal of reflection. Can improve the repeatability, stability, accuracy of hydraulic element performance detection, improve the detection efficiency.

The invention discloses a processing method of a storage device, electronic equipment and a storage medium, the storage device is arranged in the electronic equipment after leaving a factory, and the processing method of the storage device comprises the following steps: when the electronic equipment is idle, carrying out wear test on all storage blocks in the storage device; wherein the memory device is not subjected to the wear test before leaving a factory; in the wear test process, responding to failure of executing the test instruction on any storage block, and marking the corresponding storage block as a bad block. Through the method, after the storage device leaves the factory, the wear test is performed on the storage device in the electronic equipment, so that the test task of a production test end on the storage device is reduced, the test cost of the storage device is effectively reduced, in addition, in the wear test process, bad blocks in the storage device can be marked, and the test efficiency is improved. Therefore, data loss caused by writing the data into the bad block is avoided.

This utility model discloses an adjustable cantilever for OPC wear testing, including a support base. A positioning column is connected to one side of the support base, and a telescopic groove is formed on the other side. An adjusting column is slidably installed inside the telescopic groove. A drive motor is mounted on one side of the positioning column, and a rotating shaft is rotatably mounted on one side of the adjusting column. Both the output ends of the rotating shaft and the drive motor are connected to support covers. An adjusting frame is provided on the surface of the support base, and a testing cantilever is rotatably installed inside the adjusting frame. A cantilever adjustment mechanism is provided between the testing cantilever and the adjusting frame. This utility model has the following advantages: it stably clamps both ends of the OPC drum to be tested within two support covers. The cantilever adjustment mechanism allows for free adjustment of the testing cantilever, thereby adjusting the testing position and pressure on the OPC drum surface during wear testing. This more accurately simulates the wear condition of OPC in actual use, improving the accuracy and reliability of the measurement results.

The utility model discloses a high pressure oil pipe wear testing machine, including testing machine main part, rubber pipe fixed component, polishing subassembly and drive assembly, rubber pipe fixed component is including rubber pipe fixed spare, polishing subassembly is located the top of rubber pipe fixed component, polishing subassembly at least includes slider assembly, mobile seat, connecting rod, weight and polishing block, the output of drive assembly is connected to one end of rubber pipe fixed component, makes drive assembly control rubber pipe fixed spare rotation, the other output of drive assembly is connected to mobile seat, makes drive assembly control mobile seat along the extension direction of slider assembly and moves, to make polishing block and rubber pipe fixed spare resist and along the extension direction of rubber pipe fixed spare to and fro movement, thus, drive mobile seat and drive polishing block along the accurate reciprocating linear motion of oil pipe length direction, realize the oil pipe on rubber pipe fixed component and carry out friction movement to guarantee the laboratory simulation of oil pipe high efficiency, accurate, reliable.

The utility model relates to the field of abrasion testing machines, and discloses a multifunctional reciprocating friction abrasion testing machine which comprises a working table, a supporting frame is fixedly connected to the upper side of the working table, hydraulic rods are fixedly connected to the two sides of the upper portion of the supporting frame, and the output ends of the hydraulic rods are fixedly connected with a supporting plate. The lower side of the supporting plate is fixedly connected with a fixing frame, the upper side of the supporting plate is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a rotating block, the lower side of the rotating block is fixedly connected with a first rotating plate, and the first rotating plate is rotationally connected with a second rotating plate through a first rotating shaft; and the second rotating plate is rotationally connected with a sliding block through a second rotating shaft. According to the utility model, the to-be-processed product can be conveniently driven to be conveyed, the accuracy of the to-be-processed product during testing is improved, the device has higher precision and repeatability, and consistent results can be obtained in multiple tests.

This invention provides an experimental device for friction and wear testing of an artificial knee joint, belonging to the field of material friction and wear technology. It includes a lifting module, with a femoral clamping module at its top. The femoral clamping module contains a polyurethane elastomer sealed chamber, and a tibial clamping module is connected below this chamber. An intelligent temperature-controlled circulating hydraulic pump is located on one side of the polyurethane elastomer sealed chamber. This invention achieves reciprocating motion through a reversing valve control. Combined with sub-millimeter precision adjustment of the hydraulic actuator and differentiated installation positions, it realizes high-precision flexion, extension, and torsional movements of the artificial knee joint. A stable base load is provided by a central hydraulic loading module, while the unnecessary torque from the dual electromagnetic loading modules cancels each other out. Simultaneously, instantaneous impact force is superimposed on the stable hydraulic load through instantaneous power switching, enriching the loading methods of the experimental device for friction and wear testing of an artificial knee joint.

The application relates to the technical field of acoustic signal processing and fault diagnosis, and discloses an engine alloy component wear testing method and system based on acoustic emission. The method comprises the following steps: acquiring continuous acoustic emission signals of an engine alloy component during operation and dividing the signals into multiple data frames, the signals being collected by an acoustic emission sensor; extracting a spectrum time domain feature set and an energy domain feature set based on a Teager-Kaiser energy operator for each data frame, and concatenating the two feature sets after Z-score standardization to form an initial combined feature; independently clustering in two feature spaces to generate a composite cluster label, and calculating the local covariance matrix of each composite cluster; constructing a sample relation graph with the data frames as nodes, for any two data frames, fusing the Euclidean distance between the initial combined features of the two data frames and the Riemann distance between the local covariance matrices corresponding to the composite cluster labels to which the two data frames belong through a kernel function to obtain an edge weight; and combining part of the labeled samples and determining the wear states of all the data frames through a label propagation algorithm. The application improves the accuracy of wear state recognition.

The utility model relates to the technical field of shoe sole wear resistance testing, in particular to a clamp damage prevention structure of a shoe sole wear resistance machine, which comprises a base, two sides of the top of the base are provided with clamping parts for clamping two sides of a shoe sole, the middle of the top of the base is provided with a supporting part for supporting the shoe sole, and the upper ends of the clamping parts are provided with clamping heads. A driving part is installed in the base close to the lower end of the clamping part, and the middle of the clamping part is rotationally connected with the base through a pin shaft. According to the clamp damage prevention structure of the shoe sole wear-resisting machine, the clamping components on the two sides of the top of the base are matched with the supporting component in the middle, and a shoe sole can be fixed in multiple directions. The driving component drives the lower end of the clamping component to move, the clamping head tightly presses the side face of a shoe sole according to the lever principle, the supporting height can be flexibly adjusted by combining the jacking component at the bottom of the supporting component, and accurate and stable fixing can be achieved for conventional shoe soles or shoe soles of irregular shapes and different sizes.

The utility model provides a rockshaft and bushing high-temperature repeated rotation wear testing machine, which comprises a rack, a test assembly is arranged on the rack, the test assembly comprises rockshaft clamping devices for clamping rockshafts, a resistance type square high-temperature furnace heating device is arranged between the rockshaft clamping devices, and the resistance type square high-temperature furnace heating device is connected with the rockshaft clamping devices. The rocker arm shaft right clamp is provided with a flange plate cooling water circulation system and is matched with a coupler to be connected with a torque sensor, the torque sensor and a support are connected and installed on a middle-layer plate, friction torque between a rocker arm shaft and a lining is recorded in real time, and a power motor is arranged on a bottom plate. The power motor is connected with the variable-eccentric-distance cam device through the coupler, the variable-eccentric-distance cam device drives the loading assembly to complete up-and-down reciprocating motion and drives the rocker arm shaft to achieve reciprocating motion within a fixed angle, and the force application device is loaded on the lining and connected with the rack to adjust spring force so as to achieve preset torque.

The invention relates to the technical field of vehicle tire testing, and discloses a cyclic working condition construction method, device and equipment for a vehicle tire wear test, and the method comprises the steps: obtaining the original driving data of an actual road test; dividing kinematics fragments by taking a complete start-stop event of the vehicle as a boundary, and extracting motion features of each kinematics fragment; grouping the kinematics fragments and the motion features thereof according to the vehicle speed; performing clustering analysis on each group; screening a plurality of kinematics fragments closest to the clustering center in each class cluster, and constructing a typical kinematics fragment library; selecting candidate kinematics fragments from the typical kinematics fragment library according to a preset cyclic working condition total duration, and splicing the candidate kinematics fragments; and performing optimization selection on the candidate kinematics fragments by taking the condition that the relative deviation between the splicing working condition and the motion characteristics of the original driving data is smaller than a set threshold value as a target to obtain a cyclic working condition. The cyclic working condition constructed by the invention can accurately simulate tire wear under the actual driving condition, and the test accuracy is improved.

This invention belongs to the field of product testing technology, specifically disclosing a rapid clamping type two-dimensional composite motion corrosion and wear testing device and method. It includes a base shell and a robotic arm detachably mounted on the base shell. A movable component is located on one side of the top surface of the base shell. A sealing shell is detachably mounted on top of the base shell, and a carrier is slidably mounted inside the sealing shell. The carrier is used to move the test sample inside the sealing shell. An electrode rod and a friction rod are inserted into the sealing shell, with the friction rod passing through the output end of the robotic arm. During operation, a liquid containing the corrosion test sample is injected into the sealing shell. Subsequently, the electrode rod energizes the interior of the sealing shell, and the movable component, through the carrier, moves the test sample to rub against the friction rod. This device achieves non-contact transmission and dynamic medium control through the synergistic effect of magnetic coupling drive and suction structure, effectively improving the environmental realism, sealing reliability, and ease of operation of corrosion and wear testing.

Disclosed are a friction and wear test system and a friction and wear test method. To reduce the error of measured friction coefficients, the friction and wear test system of the present disclosure includes a rotating shaft, a dynamic specimen mounting structure mounted on the rotating shaft, a first static specimen mounting structure, a first loading module for applying a preset loading force to the first static specimen during the test, and a second static specimen mounting structure arranged directly opposite to the first static specimen mounting structure in the axial direction of the rotating shaft. The second static specimen mounting structure is configured with a second loading module for applying a preset loading force pointing at the dynamic specimen to the second static specimen during the test, so as to at least partially counterbalance the force loaded on the dynamic specimen by the first static specimen during the test.

This invention relates to the field of tire rubber performance testing technology, and more particularly to a method and system for evaluating and predicting the sliding wear of tread rubber under high-torque acceleration / braking conditions in new energy vehicles. The invention measures the wear amount W at a slip ratio s=10 under the same load, speed, temperature, and abrasive conditions on an improved Lambourn slip wear testing machine. 10 W 15 W 20 The slip sensitivity coefficient K was obtained by linear fitting the W-s relationship using the least squares method. slip and intercept b. Based on high slip wear and K slip Constructing evaluation index I for high torque operating conditions HT And by calibrating the model, I HT This is mapped to wear level or equivalent wear mileage. Compared with single slip rate evaluation, this invention can characterize the sensitivity of wear as slip rate increases, enhance the ability to distinguish high slip events, improve the consistency between indoor evaluation and actual vehicle wear, and is applicable to formula screening, process window determination, and mileage prediction.

The application relates to the technical field of friction and wear testing machines, in particular to a multi-mode self-positioning friction and wear equipment, which comprises a main rotating shaft, the bottom end of the main rotating shaft is connected with an upper clamp, the upper clamp is in a cylindrical structure, the upper clamp is coaxially connected with the main rotating shaft, the bottom of the upper clamp can be installed with a plurality of upper friction pairs, the plurality of upper friction pairs are circumferentially distributed around the main rotating shaft; the upper clamp is detachably connected with brushes between adjacent upper friction pairs, and all the brushes are circumferentially distributed around the main rotating shaft; a lower clamp is arranged below the upper clamp and is horizontally slidably connected to a base, and the top of the lower clamp can clamp a lower friction pair. The application can improve the stability of the upper friction pairs under the conditions of large load and high rotating speed, and improve the accuracy of the test results by arranging a plurality of upper friction pairs; the brushes can sweep away the wear debris, reduce the friction between the upper friction pairs and the wear debris, and make the test results more accurate. The lower friction pair can realize two modes of fixation and horizontal reciprocating motion under the clamping of the lower clamp.

This invention relates to the field of material surface performance testing, and discloses a multifunctional ultrasonic longitudinal vibration friction and wear testing machine with adjustable frequency and amplitude. The machine includes a housing, an oil reservoir, a quick-change tool head, a clamp, a drive system, a tunable ultrasonic longitudinal vibration system, and an oil supply system. The oil reservoir is installed inside the housing. The clamp is located inside the oil reservoir, below the quick-change tool head. The drive system is installed inside the housing and is connected to both the quick-change tool head and the clamp, driving the quick-change tool head to contact the sample on the clamp, and driving the clamp to rotate or reciprocate relative to the quick-change tool head. The tunable ultrasonic longitudinal vibration system is connected to the quick-change tool head, driving the quick-change tool head to vibrate and adjusting its vibration frequency and amplitude. The oil supply system is located on the oil reservoir and supplies oil to the contact area between the sample and the quick-change tool head, adjusting the oil supply volume and temperature. This invention solves the problem of improving the diversity and flexibility of testing.

The utility model discloses an excavator bucket tooth abrasion testing device which comprises a bottom plate, two conveying frame bodies are fixedly connected to the bottom plate, two second fixing frames are fixedly connected to the bottom plate, third driving motors are fixedly installed on the second fixing frames, and third rotating shafts are connected to output shafts of the third driving motors. The third rotating shaft is rotationally connected with the conveying frame body, a first conveying wheel is rotationally connected to the conveying frame body, the first conveying wheel is connected with the third rotating shaft, a second conveying wheel is rotationally connected to the conveying frame body, and a conveying belt is connected between the first conveying wheel and the second conveying wheel. A third driving motor is controlled to drive a third rotating shaft, a first conveying wheel, a second conveying wheel and conveying belts to rotate, a worker takes down bucket teeth on a first fixing frame for observation, then qualified products and unqualified products are placed on the two conveying belts respectively, the conveying belts can convey the different bucket teeth, and the working efficiency is improved. Therefore, the tested bucket teeth are classified, and the testing efficiency is improved.

The invention discloses an abrasion test device for a fabric self-lubricating liner. The abrasion test device comprises a workbench, an abrasion loading mechanism and a liner fixing mechanism, a plurality of placing grooves are formed in the workbench; the abrasion loading mechanism comprises loading rollers, transmission parts and a driving source, the multiple loading rollers are sequentially and detachably connected in the axial direction through the transmission parts and are arranged above the containing grooves respectively, and the driving source is connected with the loading rollers and can drive the loading rollers to rotate; the liner fixing mechanism comprises a plurality of clamping pieces, one ends of the clamping pieces are rotatably arranged beside the containing groove, and the other ends of the clamping pieces can rotate to the position above the containing groove. The wear test device for the fabric self-lubricating liner can be used for carrying out a wear test on a plurality of test pieces at the same time and terminating the wear of each test piece at different time nodes, so that the test pieces with different wear degrees can be analyzed and detected, the operation is simple and convenient, and the time required by the test is also reduced.

The invention discloses a wheel body detection method based on a high-precision wear resistance test platform, and the method achieves the precise evaluation of wear resistance under a complex working condition. The test platform is composed of a test pressurization system, a multi-dimensional monitoring system and an intelligent control system, and the test pressurization system comprises a test pressurization mechanism and a test simulation mechanism which are arranged in parallel and can simulate various road surface working conditions and pressure changes; the multi-dimensional monitoring system collects data in multiple aspects of vision, mechanics and the like in real time, and the intelligent control system achieves automatic testing and data processing. The test method comprises the steps of test preparation, initial contact calibration, multi-stage dynamic pressurization test, data processing analysis, wear resistance comprehensive evaluation and the like, a unique multi-stage dynamic loading mode is adopted, and machine learning and finite element analysis are combined; compared with the prior art, the actual working condition can be simulated more truly, all-around high-precision monitoring and precise evaluation are achieved, and powerful technical support is provided for research, development, production and quality control of the Mecanum wheel.

The invention provides a reciprocating wear testing device for a plastic-coated block of a fork foot of a shifting fork. Relates to the technical field of accessory testing equipment. The shifting fork foot plastic-coated block reciprocating abrasion testing device comprises a testing rack, a bearing box is installed on one side of the testing rack in a sliding mode, a connecting base plate is arranged below the bearing box, a plurality of clamping mechanisms are fixedly installed at the bottom of the connecting base plate and used for fixing a plastic-coated block, a plurality of pressure applying mechanisms are arranged in the bearing box, and the pressure applying mechanisms are used for applying pressure to the plastic-coated block. The pressure applying mechanisms are used for applying pressure to the plastic-coated block downwards, and the pressure applying mechanisms are connected with the connecting base plate; a pushing mechanism is arranged in the bearing box and used for driving the pressure applying mechanism to descend to achieve the pressure applying purpose, and a pressure sensor is arranged in the bearing box and matched with the pushing mechanism. The device has the advantages that a plurality of plastic coated blocks can be tested at the same time, uniform pressure applying standard is guaranteed, and the device can adapt to various friction coefficient testing scenes.

The utility model discloses a kind of brake disc wear testing devices, its technical solution main point is, belong to automobile parts testing equipment field, including body and test stand, the upper end of the test stand is equipped with positioning frame, the top of the body is equipped with roof rack, the bottom of the roof rack is equipped with a pair of mounting blocks;By setting by fixed structure brake disc body is positioned to appropriate position, then start motor two, can let moving block produce movement can drive polishing disc to brake disc body at different positions to prepare friction, and its outer surface is attached, to simulate braking friction, after friction to certain time, laser range finder set on the outside of brake disc body, can start automatic push rod two to drive laser range finder to be located at brake disc body outer end, the reduction of brake disc body thickness can be detected in real time, make the device test work more convenient, improve detection accuracy, make the wear testing device apply to brake disc test work more practical.

The utility model relates to the technical field of material surface performance testing, and discloses a wear resistance testing device for a water-based UV (ultraviolet) photocuring antibacterial wear-resistant coating plate, which comprises a working table, a moving arm is mounted at the top end of the working table, a connecting arm is mounted at the front end of the moving arm, a polishing plate is mounted at the bottom end of the connecting arm, and the polishing plate is mounted on the working table. Fixing blocks are fixedly connected to the two sides of the working table top, two moving rails are fixedly connected to the top end of the working table top, moving blocks are slidably connected to the interiors of the moving rails, and a connecting plate is fixedly connected to one side of each moving block. According to the wear resistance testing device for the water-based UV photocuring antibacterial wear-resistant coating plate, the fixing mode of the coating plate is set to be modular design, so that a threaded rod does not need to be frequently screwed as in the prior art when the coating plate needs to be fixed, and then the fixing of the coating plate becomes more efficient and convenient; therefore, the test efficiency and the use experience of the coated plate are effectively improved.

The present application relates to the field of shield machine testing equipment, specifically is a kind of shield machine component performance testing equipment, including the base frame of L-shaped structure, the horizontal section of base frame is slidably connected with support plate left and right, its vertical section is rotatably connected with U-shaped frame, U-shaped frame and support plate are provided with pseudo mechanism for impacting and wearing test of cutter on it, limiting mechanism for limiting cutter is arranged on U-shaped frame, the rotating cylinder of the present application is intermittently driven by driving assembly, drives the impact ball at the end of swing rod to rise to set height, by the way of accumulating gravitational potential energy and converting into kinetic energy, impact ball violently impacts cutter surface in the form of free swing, this process highly simulates the instantaneous, high-energy impact working condition of falling stone on cutter blade circle in tunneling, effectively reveals the real damage mode of micro-crack, collapse or structural failure caused by impact load to cutter, significantly improves the pseudo of impact test.

The invention discloses a high-temperature vacuum molten salt environment rotating friction wear test system, and belongs to the technical field of molten salt test equipment, the high-temperature vacuum molten salt environment rotating friction wear test system comprises a base, a rotary furnace and a vacuum melting chamber, the base is internally provided with a power device, and the power device is in transmission connection with the rotary furnace, so that the rotary furnace rolls along the inner side wall of the rotary furnace; a vacuum melting chamber is rotationally arranged at the axis of the self-rotating furnace, and the vacuum melting chamber is in coupling transmission connection with the self-rotating furnace, so that the self-rotating furnace also rotates in the rolling process, and according to the angular momentum conservation principle, after a power system is stable, the vacuum melting chamber can obtain a high rotating speed; meanwhile, the accompanying sealing cover is fixed with the self-rotating furnace in a sealing manner and moves along with the self-rotating furnace, so that the current passes through the turning cover and the accompanying sealing cover to form a loop, an electric arc is formed in the vacuum melting chamber, molten salt can be heated by the electric arc, the electric arc and a test pipe sample in the vacuum melting chamber mutually rotate and rub, and finally an accurate test result is obtained.

The invention relates to the technical field of testing devices, and discloses a bionic micro-texture guide rail friction wear testing device and testing method. The bionic micro-texture guide rail friction wear testing device comprises a base, a mounting frame fixedly mounted at the top end of the base, a lower clamp arranged above the base and a driving mechanism arranged on the base and used for driving the lower clamp to horizontally reciprocate, and an upper sliding table and a lower sliding table are slidably mounted on the inner side of the mounting frame; uniform oil dripping is achieved through cooperation of the flow dividing pipe and the multiple oil outlets and movement of the lower sample, meanwhile, the scraper blade is combined for blade coating of lubricating oil, the piston in the flow dividing pipe can synchronously move along with adjustment of the oil suction assembly so as to automatically close the oil outlet in the outer side, the working range of the oil outlets can adapt to the lower samples of different sizes, and the working efficiency is improved. The dripping amount of the lubricating oil is effectively controlled, the situation of excessive adding or insufficient adding caused by different sizes of lower samples during manual dripping is avoided, the waste of oil liquid is reduced, and the accuracy and uniformity of lubricating oil coating are improved.

The utility model provides a reciprocating driving mechanism of an abrasion testing machine and a testing device of the reciprocating driving mechanism, two vertical inner sides of a reciprocating frame of the reciprocating driving mechanism are provided with sliding chutes, a cross-shaped motion sliding block is arranged in the sliding chutes of the reciprocating frame, and an eccentric wheel is arranged in a mounting hole in the center of the cross-shaped motion sliding block; the eccentric shaft is connected with the eccentric wheel shaft hole; reciprocating shafts are arranged on the opposite outer sides of the reciprocating frame. The testing device comprises a rack, a heating base, a linear reciprocating assembly, a testing groove, a pressure loading assembly, a testing clamp and a driving motor. The linear reciprocating assembly is simple in structure, the amplitude of the reciprocating linear motion is guaranteed through the double-eccentric structure design of the eccentric shaft and the eccentric wheel, and the test reciprocating stroke is adjustable. The reciprocating friction-wear testing machine is used for testing under a material extreme pressure condition and an oil product extreme pressure condition. The equipment is attractive in overall structural design, convenient to operate, high in automation degree, good in equipment operation stability and high in test precision, the actual working condition state of a material is simulated, and the test accuracy is improved.

A device for wear testing includes a frame, a rotary actuator, and a linear actuator spaced apart from the rotary actuator along a longitudinal axis of the frame. The device further includes first and second specimen holding units. The first specimen holding unit includes a seat connected to the linear actuator, a plate engaging with the seat, and a first thrust bearing connected to the plate and at least one first diaphragm plate connected to the frame. The second specimen holding unit includes a shaft connected to the rotary actuator and a second thrust bearing connected the frame. The rotary actuator is configured to rotate a second specimen about the longitudinal axis. The linear actuator is configured to move a first specimen along the longitudinal axis, such that the first specimen engages with the second specimen.

The application discloses a kind of electric field shielded rotary friction and wear testing machine, comprising: rotary drive device, can drive ring sample mounting rod positive and negative rotation;Ring sample mounting rod, ring sample can be installed;Vertical loading device, can drive block sample mounting table lifting, so that the block sample on block sample mounting table and the ring sample on ring sample mounting rod abut to exert loading force, and adjust the size of loading force;Detection device, between vertical loading device and block sample mounting table, including loading force sensor and two opposite friction force sensors, loading force sensor is used to detect vertical loading force, the axial direction of ring sample mounting rod, the force direction of loading force sensor and friction force sensor is perpendicular;Block sample mounting table, can install block sample;Electric field shielding box, above rack, block sample mounting table and ring sample mounting rod are located in electric field shielding box. To provide a kind of can simultaneously meet the test demand of rotary friction pair and swing friction pair friction and wear testing machine.