431 results about "Wear testing" patented technology

A wear state online monitoring method and system based on transfer learning and multi-source information fusion are provided. The method includes: separately collecting data of a friction pair to be monitored in a friction and wear testing state and in an on-ship state; performing feature extraction on the data of the friction pair to be monitored; based on the extracted features, performing feature transferring through transfer learning to obtain successfully transferred features; training a random forest model by using the successfully transferred features, and performing wear state monitoring by using the trained random forest model. The application achieves online monitoring of the wear states of the shafting, gearbox, and wear-prone components in marine and aerospace power plants. The incorporation of transfer learning and multi-source information fusion reduces the quality requirements of the collected signals and enhances the robustness of wear state monitoring, thereby broadening the application scope of the system.

The invention relates to the field of mechanical and electrical product abrasion testing, and provides an online simulation method and system for mechanical and electrical product abrasion testing, and the method comprises the following steps: collecting historical multi-dimensional monitoring data in the operation process of a mechanical and electrical product from a historical database; establishing an initial mechanical and electrical product wear prediction model based on a Bayesian network and a convolutional neural network; training and testing an initial mechanical and electrical product wear prediction model through the historical multi-dimensional monitoring data to obtain a mechanical and electrical product wear online prediction model; and collecting electromechanical product operation multi-dimensional monitoring data in the electromechanical product operation process in real time, inputting the electromechanical product operation multi-dimensional monitoring data into the electromechanical product wear online prediction model, and outputting a wear prediction result of the electromechanical product. According to the method, historical multi-dimensional monitoring data is collected, the Bayesian network and the convolutional neural network are combined to establish an initial mechanical and electrical product wear prediction model, and online wear prediction is realized after the model is trained and tested, so that the wear condition of the mechanical and electrical product is monitored and predicted in real time, and the wear test accuracy and efficiency are improved.

The invention discloses a multi-shaft fretting wear testing device for a hub bearing, which comprises an equipment rack, a hydraulic oil source system assembly, a temperature simulation environment box, a tool structure component and an auxiliary hoisting mechanism, and is characterized in that the temperature simulation environment box is mounted on the equipment rack, the tool structure component is used for mounting the hub bearing to be tested, and the auxiliary hoisting mechanism is mounted on the equipment rack; the tool structure component is installed in the temperature simulation environment box, the auxiliary hoisting mechanism is arranged above the temperature simulation environment box, and a radial load actuator, an axial load actuator and a swing actuator are arranged in the equipment rack. According to the multi-axis fretting wear testing device for the hub bearing, simulation of the environment temperature and application of loads in multiple directions can be effectively achieved, so that testing is achieved by applying swing actions.

The invention discloses an axial-radial integrated loading rotating shaft bush high-temperature swing friction-wear testing machine, and belongs to the technical field of friction-wear testing, the axial-radial integrated loading rotating shaft bush high-temperature swing friction-wear testing machine comprises a bottom plate, a loading module is arranged on the bottom plate, one side of the loading module is connected with a high-temperature clamp module, one side of the high-temperature clamp module is connected with a motion generation module, and the motion generation module is connected with the loading module. One side of the motion generation module is connected with an electric control box body, and one side of the electric control box body is connected with a control computer. According to the axial-radial integrated loading rotating shaft bush high-temperature swing friction wear testing machine disclosed by the invention, synchronous application of an axial load and a radial load is realized through cooperative control of double stepping motors in the loading module; meanwhile, the influence of the coupling on torque measurement is effectively eliminated through the self-designed coupling, and the accuracy of synchronous application is improved.

The invention relates to the technical field of disc dryer part detection, in particular to a rake blade abrasion testing system of a disc dryer and a testing method of the rake blade abrasion testing system, and solves the defects existing in the prior art. The testing system comprises a fixed table, a rake blade adjusting mechanism and a friction simulation mechanism, and one side of the fixed table is provided with a side table; a control terminal with a PLC is installed on the side wall of the side table, a first fixing frame is installed on the fixing table, a mounting shaft is arranged on the first fixing frame, a rotary table is rotationally arranged on the fixing table, the rake blade adjusting mechanism comprises a second fixing frame, rake blades and a connecting frame, one end of the second fixing frame is fixed to the mounting shaft, and the other end of the second fixing frame is fixed to the connecting frame. A fixing groove is formed in the other end of the base, and a lifting adjusting assembly is arranged in the fixing groove. Compared with the prior art, the friction between the rake blade and a disc and the friction between the rake blade and a material in actual work can be effectively simulated through the system, and the detection accuracy and completeness are improved.

The invention discloses a high-temperature and high-pressure fluid lubrication rotating plane frictional wear testing device, and belongs to the technical field of extreme working condition tribology testing. The device is characterized in that a lifting device and a loading cylinder are simultaneously fixed at the top of a test stand bracket, a piston rod of the loading cylinder is connected with a tension sensor and a water-cooling loading shaft, and the water-cooling loading shaft is connected with a lower sample piece (static ring) in a high-temperature and high-pressure test cavity through a spherical universal joint; the oil-cooling main shaft is fixedly connected with an upper sample piece (moving ring) in the high-temperature and high-pressure test cavity through a locking nut, so that the axial load of the water-cooling loading shaft and the oil-cooling main shaft in a non-concentric state can be uniformly loaded, and the end surfaces of the upper sample piece and the lower sample piece can be automatically attached to each other. The upper part of the high-temperature and high-pressure test cavity is connected with the water-cooling jacket, and the lower part is connected with the bearing cavity. High pressure of the test chamber is guaranteed by a high-pressure water station system, and high temperature is adjusted and controlled by an electric heater and a water cooling jacket. The device can realize the rotary sliding friction wear test of a friction pair in a high-temperature and high-pressure water environment.

The utility model discloses a vertical end face contact friction wear testing machine, which belongs to the technical field of tribology research and experimental test, and comprises a base and a mounting rack fixed on the base, the upper end part of the mounting rack is provided with an upper mounting seat, the lower end part of the mounting rack is provided with a lower mounting seat, and the lower mounting seat is fixedly connected with the base. A loading mechanism and a measuring structure are mounted in the mounting frame, the loading mechanism comprises a nut follow-up block, a plurality of through holes are formed in the nut follow-up block, a guide rail, a ball screw and the measuring structure are mounted in the through holes respectively, and the top of the ball screw is connected with a servo motor. The vertical end face contact friction wear testing machine disclosed by the utility model can ensure that the load between samples reaches a preset value and is stable, so that the load control is realized.

The invention relates to a real-time wear test device for a cardiovascular implant mitral valve / tricuspid valve, which comprises a plurality of test mechanisms, and each test mechanism comprises a first compliance adjusting module, a second compliance adjusting module, a liquid flowing pipeline and a driving module, a valve carrier module and a return pipe are connected between the second compliance adjusting module and the first compliance adjusting module; one end of the liquid flowing pipeline is communicated with the first compliance adjusting module, and the other end is connected with the driving module; test liquid sequentially flows through the liquid flowing pipeline, the first compliance adjusting module, the backflow pipe, the second compliance adjusting module and the valve carrier module and flows back into the first compliance adjusting module and the liquid flowing pipeline so as to perform circulating reciprocating motion. According to the invention, a test environment highly similar to human physiological conditions can be simulated, so that the credibility and the accuracy of test results of the mitral valve and the tricuspid valve are ensured, and a real and reliable basis is provided for evaluating the service life of the mitral valve and the tricuspid valve.

This invention discloses a wear and tear testing device for textile materials, comprising a chamber and a rotating device within the chamber. An air diffuser is positioned at a specific location on the agitator of the rotating device, with the air diffuser direction at a 55-degree angle to the plane of the agitator. The diameter of the air diffuser is 1.2 mm. Pressure values ​​are set to suit different ranges of textile materials with varying unit surface mass. When the force value displayed by the sensor fluctuates within ±1% for 1.0 s, an alarm sounds. By setting parameters that correspond to the state of the chamber and the textile material, the testing time for textile material wear and tear testing is reduced. A locking device on the rotating position improves automation and testing accuracy.

The invention discloses a textile processing product detection device and a detection method thereof.The textile processing product detection device comprises a rack and further comprises a control box installed on one side of the bottom end of the rack, a friction structure arranged at the telescopic end of a lifting air cylinder, an isolation structure arranged on the outer side of the friction structure and a dust removal structure arranged on one side of the isolation structure; the friction belt is driven to move downwards and make contact with the fabric through stretching of the lifting air cylinder, the electric roller is started to enable the friction belt to conduct plane abrasion testing on the fabric, the telescopic air cylinder is started to enable the supporting roller to move downwards, then the friction belt and the fabric are pushed to be bent and deformed, and abrasion testing of the fabric in the bent state is simulated; and a multi-form testing function is realized, so that the device can comprehensively simulate the testing requirements of the fabric under various form changes such as bending, stretching and twisting, and the wear resistance of the fabric can be comprehensively and deeply evaluated.

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.

The invention discloses a friction corrosion test system based on deep sea environment simulation, and relates to the field of deep sea environment simulation and friction wear tests. The system comprises a deep sea environment simulation subsystem and a friction corrosion test subsystem, the deep sea environment simulation subsystem comprises a gas distribution unit, a liquid storage unit, a water chemical monitoring unit, a low-temperature high-pressure control unit and a PC data processing and control unit; the friction corrosion testing subsystem comprises a friction corrosion testing machine, the friction corrosion testing machine is connected with a low-temperature high-pressure control unit through a pipeline, the low-temperature high-pressure control unit supplies simulated deep sea water to the friction corrosion testing machine, and the friction corrosion testing machine comprises a high-pressure kettle composed of a kettle body and a kettle cover. A high-voltage electrochemical three-electrode system consisting of a working electrode, an auxiliary electrode and a reference electrode is arranged in the high-pressure kettle; and leads of the three electrodes penetrate out of the kettle body and then are respectively connected with an electrochemical workstation. According to the device, the friction corrosion test can be researched while the deep sea environment is dynamically simulated.

The embodiment of the invention provides a shifting fork testing system, and relates to the field of speed change shifting fork testing. Comprising a tank body for containing lubricating oil and a protective cover detachably arranged on the tank body; the driving mechanism assembly comprises a rotary driving mechanism axially penetrating through one side of the groove body; the axial driving mechanism is arranged on the same side of the groove body in a penetrating manner through a transmission mechanism; the transmission mechanism is provided with a force sensor; the shifting fork clamping module comprises a mounting plate which is detachably arranged on the side wall of the groove body; the clamping piece is slidably arranged on the mounting plate, and one end of the clamping piece is detachably connected to the transmission mechanism; the two positioning blocks can be horizontally adjusted and locked on the mounting plate; the synchronous ring clamping module comprises a connecting end detachably connected with the rotary driving mechanism and a clamping end. The device can simulate the real working condition of a gearbox to carry out fatigue and wear resistance testing on the shifting fork, can achieve the testing of different models of shifting forks, is simple and convenient to operate, can improve the testing efficiency of the shifting fork, and can reduce the cost.

The invention relates to a high / low temperature wear-corrosion coupling damage test device and a quantitative evaluation method, and belongs to the technical field of wear corrosion test and material failure analysis. The device comprises a temperature-controllable corrosion test tank, a friction-wear test machine, an electrochemical workstation and a high-low temperature external circulation temperature controller, the temperature-controllable corrosion test tank is arranged on the friction-wear test machine, and friction-wear performance testing is achieved through reciprocating motion of the friction-wear test machine. And the temperature-controllable corrosion test tank is externally connected with an electrochemical workstation and a high-low temperature external circulation temperature controller and is used for testing corrosion performance and controlling temperature. According to the invention, high-precision testing and quantitative analysis of abrasion and corrosion of the metal-based material in high and low temperature environments are realized.

The invention relates to the technical field of wear resistance testing, and particularly discloses a textile wear resistance testing device which comprises a shell assembly, the shell assembly comprises a foundation plate, an upper shell is arranged at the top of the foundation plate, a first T-shaped groove is formed in the top side of the interior of the upper shell, and a pit is formed in the top of the foundation plate. A discharging assembly is slidably connected into the first T-shaped groove, a conveying assembly is arranged above the foundation plate, a placing assembly is arranged on one side of the conveying assembly, a first transmission assembly is arranged on the side face of the placing assembly, a to-be-ground workpiece is installed between the placing assembly and the conveying assembly, and a grinding measuring assembly is arranged above the to-be-ground workpiece. According to the grinding device, the grinding measuring assembly is arranged, the number of grinding measuring heads extending out of a rotating box can be changed by utilizing the initiative of a second motor and a third motor, the mechanical structure is changed, and therefore the grinding frequency of the grinding measuring assembly is changed.

The invention discloses a fretting wear test device applied to a spline pair, which belongs to the field of vibration wear test equipment and comprises a base, a motor, a first support plate, a second support plate, a first base, a second base, an axial adjusting assembly, a radial adjusting assembly and an angle adjusting assembly. The radial adjusting assembly is installed on the base, the axial adjusting assembly is connected with the radial adjusting assembly, the first supporting plate is connected with the axial adjusting assembly, the first base is installed on the first supporting plate, the second supporting plate is rotationally connected with the base, and the second base is installed on the second supporting plate. The angle adjusting assembly is installed on the base and connected with the second supporting plate. The first base is used for mounting a spline shaft, the second base is used for mounting a spline housing, the spline shaft and the spline housing are in plug-in fit, and the motor is mounted on the second supporting plate and is in transmission connection with the spline housing, so that the application range of the test device can be widened.

The utility model discloses ceramic grinding ball belt material abrasion testing equipment which comprises a grinding seat, a bottom plate is arranged on the grinding seat, a grinding barrel is detachably connected to the bottom plate, a grinding support is arranged on the grinding seat, a stirrer is arranged in the grinding barrel, a first motor for driving the stirrer to rotate is arranged at the top of the stirrer, and a second motor for driving the stirrer to rotate is arranged at the bottom of the first motor. The grinding support is provided with a pushing assembly for pushing the first motor to move up and down, the grinding seat is provided with a bottom plate support, the bottom plate and the bottom plate support are connected through a rotating shaft, the rotating shaft is provided with a force arm, and the bottom plate support is provided with a force sensor for measuring the torque force of the force arm. According to the utility model, the stirrer connected to the first motor is utilized to drive the grinding medium ball in the grinding barrel to move at a high speed, so that the aim of grinding materials in the grinding barrel is fulfilled, the aim of simulating the actual use process of the grinding ball is fulfilled, and the loss of the ceramic grinding ball in unit time is measured; and calculating the abrasion loss of the ceramic grinding ball.

The invention discloses a wear test device for reciprocating dynamic sealing of an actuator cylinder, and belongs to the technical field of actuator cylinder sealing wear test equipment.The wear test device comprises a main frame body and a test mechanism movably connected to the main frame body, a replaceable to-be-tested actuator cylinder structure is arranged on one side of the main frame body, and the test mechanism comprises a moving rod; the upper end and the lower end of the moving rod are provided with a limiting assembly and a counterweight assembly respectively, the moving rod is provided with a connecting piece, and the connecting piece is hinged to one end of a piston rod in the actuator cylinder structure to be tested. According to the method, the conventional motion of the output end of the actuator cylinder in a static state and the external non-axial acting force borne by the output end of the actuator cylinder in a dynamic state can be simulated, the reliability of the sealing ring in actual work can be comprehensively evaluated through combination of the two, verification is carried out from multiple dimensions, potential risks can be found, and the requirements of safety specifications in the fields of aviation, industry and the like are better met.

The utility model relates to the technical field of machine wear detection, and discloses a bushing rotation wear testing device, which comprises a connecting block, a spring is fixedly mounted on one side of the connecting block, an auxiliary structure is fixedly mounted at one end of the spring, and the auxiliary structure comprises a mounting plate, a mounting groove, a threaded groove, a threaded rod, a limiting plate, a handle, a bearing, a clamping block and anti-skid stripes. A mounting plate is fixedly mounted at one end of the spring, a mounting groove is formed in the front face of the mounting plate, a threaded groove is formed in the mounting groove, a threaded rod is in threaded connection with the temporal portion of the threaded groove, a limiting plate is fixedly mounted at one end of the threaded rod, a handle is fixedly mounted at one end of the limiting plate, and a bearing is rotationally connected to the other end of the threaded rod. The two threaded rods are screwed out by screwing the two handles, so that the clamping block is driven to move backwards, the grinding block can be disassembled and replaced, operation is convenient, and practicability is improved.

The invention relates to the field of wear resistance testing, in particular to an automatic testing method and testing equipment for wear resistance of a mobile phone protective film. According to the method, firstly, in the process that a polishing wheel rotates at different rotating speeds, abrasive paper of different mesh numbers and types is used for polishing the mobile phone protective film, and the target abrasive paper is combined with the mesh number of the target abrasive paper, rotating speed data of the target abrasive paper during polishing of the mobile phone protective film every time and a surface image of the mobile phone protective film after polishing of the target abrasive paper every time; the grinding effect value of the target abrasive paper during grinding of the mobile phone protective film each time is obtained according to the target abrasive paper and the surface distance between the mobile phone protective film and the grinding wheel after grinding of the target abrasive paper each time, and a sequence formed by the grinding effect values of all the abrasive paper during grinding of the mobile phone protective film each time is subjected to time sequence decomposition; and evaluating the wear resistance of the mobile phone protective film according to the data change of the trend term and the data distribution level of the residual term obtained through decomposition. According to the invention, the wear resistance of the mobile phone protective film can be evaluated more comprehensively and accurately.

The application discloses a high-bearing-column-piston pump friction pair friction and wear testing machine, wherein the lower sample is installed on a lower sample clamp, the lower end of the lower sample clamp is provided with a lifting mechanism for driving the vertical movement of the lower sample to make the lower sample contact or separate from the upper sample, and the upper end of the upper sample is connected with a rotary driving device for driving the rotation of the upper sample through an upper sample clamp. The loading of the testing machine is matched with a lead screw through an optimized mechanical structure design, the loading precision is high, the accuracy of experimental results is improved, stepless loading can be realized, and the testing machine is suitable for the friction and wear characteristic research of friction pairs under various pressures; the testing machine is provided with an oil collecting mechanism, the oil at any moment during the experiment can be collected, the change of the physicochemical indexes of the oil during the whole experiment can be detected, and the influence of the change of the physicochemical indexes of the oil on the friction and wear of the friction pair can be accurately analyzed.

The invention provides a friction and wear test device suitable for shaft seats of multiple specifications and a use method. The device comprises a test table board, an assembly type clamp, a crank-link mechanism and an oil cylinder loading system, the assembly type clamp is arranged on the test bench surface and is used for clamping the dual shaft; the dual shaft is used for mounting a shaft seat tested piece; the assembly type clamp comprises an inner side bearing base and an outer side bearing base which are both movably installed on the test bench surface. The dual shaft is rotationally connected with the crank connecting rod mechanism, so that the swing friction test of the dual shaft in the shaft seat tested piece is realized; and the oil cylinder loading system is arranged below the shaft seat tested piece and is used for providing radial pressure for the shaft seat tested piece. The distance between the inner bearing base and the outer bearing base can be adjusted through the inner bearing base and the outer bearing base which are movably mounted on the test bench surface, so that the device adapts to shaft seats with different lengths and is used for friction and wear tests of shaft seats with multiple specifications.

The invention discloses an aviation transmission part fretting friction wear test device and method, and belongs to the field of aerospace manufacturing, and the device comprises a supporting assembly, an axial force loading assembly, a transverse vibration assembly, a first test piece and a second test piece; the supporting assembly comprises a vibration platform, a first support and a second support, the first support is fixed on the vibration platform, the axial force loading assembly comprises a sliding plate, a servo motor, a lead screw and a nut, the sliding plate is in sliding connection with the vibration platform, the servo motor is connected with the lead screw, the nut is fixedly connected with the sliding plate, and the second support is fixed on the sliding plate; the transverse vibration assembly comprises a variable frequency motor, an eccentric wheel, a connecting rod, a vibration rod and a limiting plate, the variable frequency motor is fixed to the sliding plate, the eccentric wheel comprises a rotating shaft and an eccentric shaft, the variable frequency motor is in transmission connection with the rotating shaft, and one end of the connecting rod is rotationally connected with the eccentric shaft while the other end is rotationally connected with the vibration rod; therefore, the working condition of the aviation transmission part in a transverse vibration environment can be simulated.

The invention relates to the field of fretting wear testing, in particular to a high-temperature and high-pressure water impact fretting wear testing device and a using method thereof. The high-pressure kettle adopts a vertical structure that a lower base, a middle kettle body and an upper kettle cover are sequentially connected from bottom to top, the high-pressure kettle is fixed on a rack through the lower base, and a normal impact shaft connected with a driving mechanism extends into an inner cavity of the high-pressure kettle from the base and corresponds to the lower side of an impact material B in the inner cavity of the high-pressure kettle; the impacted material A and the impact material B correspond to each other up and down, the fixed base of the impact material B clamp is fixed at the top end of the normal impact shaft, the impact material B is driven to move up and down through the movement of the normal impact shaft, normal impact is performed on the impacted material A, and the impact fretting wear test is realized. The problems that in-situ impact fretting wear testing is difficult to complete in a high-temperature and high-pressure water environment, impact amplitude and frequency are difficult to accurately control, and plate-pipe or pipe-grillwork contact fretting wear testing is difficult to achieve are solved.

The invention discloses a fretting wear test device applied to a shaft neck and a shaft shoulder of a bearing matching surface, and belongs to the field of vibration wear test equipment, the fretting wear test device comprises a base, and a rotation driving assembly, a supporting assembly, an axial force loading assembly and a first radial force loading assembly which are arranged on the base; the supporting assembly comprises two first bases and a second base, the two first bases are used for supporting the transmission shaft, the transmission shaft is sleeved with a first bearing, and the second base is arranged between the two first bases and used for supporting the first bearing; the axial force loading assembly comprises a first threaded piece, and the first threaded piece is in threaded connection with one of the two first bases; the first radial force loading assembly comprises a second threaded piece, and the second threaded piece is in threaded connection with the second base; the rotation driving assembly is in transmission connection with the transmission shaft to drive the transmission shaft to rotate, thereby improving the application range of the test device.

The present invention discloses a micro-friction and wear testing device and method for aviation transmission components, which belongs to the field of aerospace manufacturing. The device comprises a support assembly, an axial force loading assembly, a lateral vibration assembly, a first test piece and a second test piece. The support assembly comprises a vibration platform, a first support and a second support, the first support is fixed on the vibration platform, the axial force loading assembly comprises a sliding plate, a servo motor, a lead screw and a nut, the sliding plate is slidably connected to the vibration platform, the servo motor is connected to the lead screw, the nut is fixedly connected to the sliding plate, and the second support is fixed on the sliding plate; the lateral vibration assembly comprises a variable frequency motor, an eccentric wheel, a connecting rod, a vibration rod and a limit plate, the variable frequency motor is fixed on the sliding plate, the eccentric wheel comprises a rotating shaft and an eccentric shaft, the variable frequency motor is transmission-connected to the rotating shaft, one end of the connecting rod is rotationally connected to the eccentric shaft, and the other end is rotationally connected to the vibration rod, thereby simulating the working condition of the aviation transmission component in a lateral vibration environment.

The present invention provides a friction and wear test system and method for simulated working conditions of aviation tail nozzle kinematic pairs, including a motion loading module, a fixture module and a frame; the vertical loading motor driving end is connected to the fixture base, the horizontal loading electric cylinder and the vertical loading electric cylinder are connected through a lower fixture, or the horizontal loading electric cylinder and the vertical loading electric cylinder are each connected to a lower fixture; the fixture base drives the workpiece to be tested to rotate and load on the horizontal plane through the vertical loading motor, the vertical loading electric cylinder drives the workpiece to be tested to move in the vertical direction, and the horizontal loading electric cylinder drives the workpiece to be tested to move in the horizontal direction. The wear test system disclosed in the present invention breaks through the limitation of the single experimental object of the previous special friction and wear testing machine, and can realize the testing of three types of kinematic pairs involved in the triangular pull rod and cam roller test pieces, namely the rotating pair, the ball-and-socket pair and the cam pair, thereby improving the test range of the testing machine.

The invention discloses an electronic component wear resistance testing machine, and relates to the technical field of electronic component testing. By arranging the abrasion testing head quick-changing mechanism, a rubber friction testing assembly, a steel wool friction testing assembly, an alcohol friction testing assembly and a standby testing assembly which are high in use frequency in the abrasion resistance testing process can be preset in advance, and the friction testing assemblies of the corresponding types can be quickly selected according to testing requirements before abrasion resistance testing is conducted on electronic elements; the positions of different types of wear-resistant test heads at different positions can be switched, compared with a traditional wear-resistant test head dismounting and replacing mode, the wear-resistant test head replacing speed is higher, the service time is shorter, operation is easy, the test piece efficiency of electronic elements can be improved, and the test efficiency of the electronic elements can be improved. The cleaning mechanism can utilize the suction power assembly to suck external air and purge high-speed flowing air to the electronic element in the test through the air nozzle, so that the effect of cleaning chippings falling off from the wear-resistant test surface of the electronic element is achieved.

The invention provides a pendulum type bearing stress wear testing machine, which comprises a detection table, a driving assembly and a loading assembly, the detection table is provided with a bearing seat, the bearing seat is provided with a shell sleeve in which an outer ring of a bearing to be tested is sleeved, the bearing seat is arranged on the detection table in a sliding manner, the driving assembly comprises a rotating shaft, and the rotating shaft is arranged on the loading assembly. The rotating shaft is driven by a motor to rotate, the rotating shaft extends corresponding to the axial direction of the to-be-tested bearing and can drive the inner ring of the to-be-tested bearing to rotate repeatedly along with the rotating shaft, the loading assembly comprises a loading shaft, the loading shaft is driven by an air cylinder to stretch out and draw back, and the loading shaft extends in the radial direction and can abut against the shell sleeve. Aiming at the defects in the prior art, the invention provides the pendulum type bearing stress wear testing machine capable of simulating the actual operation condition and better acquiring the operation data.