385 results about "Friction test" patented technology

The invention relates to the technical field of hard alloy tool bit machining, in particular to a hard alloy tool bit performance detection device which comprises a fixing mechanism, a wear resistance detection mechanism and a bending resistance detection mechanism, the wear resistance detection mechanism and the bending resistance detection mechanism are mounted on the fixing mechanism, and the fixing mechanism comprises a bottom table, a support and a fixing assembly, and the support and the fixing assembly are mounted on the bottom table. The alloy tool bit is primarily clamped and fixed through the clamping part, and when the first hydraulic push rod pushes the connecting disc to move rightwards to conduct friction testing on the alloy tool bit, the pushing rod is used for pushing the clamping part to conduct secondary clamping and fixing on the testing end of the alloy tool bit; and then the pushing rod and the hollow circular ring are connected and locked through the connecting part, and through linkage matching of the hollow circular ring, the clamping part, the pushing rod and the connecting part, the relative stability of the friction block and the alloy tool bit during detection is improved, and then the detection accuracy is improved.

The invention provides a radial sliding bearing with a groove-type textured surface and a friction testing method thereof.The radial sliding bearing comprises a bearing, a journal, lubricating oil and surface textures, the lubricating oil is arranged between the inner surface of the bearing and the outer surface of the journal, and the surface textures are in a groove type and are evenly distributed on the inner surface of the bearing; the shaft neck rotates around the geometric center of the shaft neck, so that lubricating oil in a bearing gap generates a fluid dynamic pressure effect to balance an external load; the centerline of the journal is parallel to the centerline of the bearing, and the film thickness of the lubricating oil in the bearing clearance is symmetrically distributed about the centerline of the bearing. According to the radial sliding bearing with the groove type textured surface and the friction testing method of the radial sliding bearing, distribution parameters and shape parameters of the surface texture are optimally designed, so that the bearing with the textured surface can obtain a more remarkable secondary fluid dynamic pressure effect, and the tribological performance of a friction pair interface of the radial sliding bearing is improved.

The invention provides a shoe sole wear resistance testing device and method.The testing device comprises a horizontal transmission assembly, an inclined transmission assembly, a vertical transmission assembly, a shoe body fixing assembly and a friction testing platform, and the horizontal transmission assembly is linearly connected to a main body support in the first direction; the inclined transmission assembly is rotationally connected to the horizontal transmission assembly in the first direction and the second direction, the vertical transmission assembly is linearly connected to the inclined transmission assembly in the third direction, the shoe body fixing assembly is arranged on the vertical transmission assembly, and the friction testing platform is linearly connected to the main body support in the third direction. Through three-dimensional motion coupling of the horizontal transmission assembly, the inclined transmission assembly and the vertical transmission assembly, a multi-degree-of-freedom motion construction of a test shoe body is constructed, then limitation of a single rotation plane of traditional equipment is broken through, continuous dynamic adjustment of a contact angle between a shoe sole and the ground is achieved, the authenticity of a test working condition is remarkably improved, and the test efficiency is improved. And the reliability of a test result is improved.

The embodiment of the invention provides a seat leather testing method and device, electronic equipment and a storage medium, and the method comprises the steps: determining a seat leather material, an opponent material, a seat foaming material and a profiling structure used by a vehicle in response to a vehicle design demand; then carrying out corresponding bonding connection treatment on the seat leather material, the opponent material, the seat foaming material and the profiling structure, and starting a friction abnormal sound tester to carry out a friction test on the seat leather material so as to determine a friction loudness value of the seat leather material; according to the method, the friction loudness value of the seat leather material is calculated, and the durability result of the seat leather material is determined according to the friction loudness value, so that the use condition of the seat leather in the whole life cycle of the whole vehicle is simulated on the friction abnormal sound tester in advance, and the possible abnormal sound problem can be accurately identified in the early stage of seat development; the situation that temporary measures with limited effects are taken in the mass production stage is avoided, the research and development cost of the whole vehicle is reduced, and the overall quality and market competitiveness of products are improved.

The present invention discloses a pin-on-disk type in-situ current-carrying friction testing system, and belongs to the technical field of friction performance testing. The friction testing system includes a pin-on-disk type friction pair, a current loading mechanism, and a magnetic field generating mechanism. The current loading mechanism includes a conductive terminal abutting against an annular sidewall of a disk specimen and used to guide a current in the disk specimen to flow along a horizontal direction, and the magnetic field generating mechanism is used to generate a magnetic field. When a pin specimen and a disk specimen rotate relatively, the pin specimen, the conductive terminal, and the magnetic field generating mechanism are relatively stationary, and an Ampere force generated by the current in the disk specimen flowing in the horizontal direction under the action of the magnetic field faces a support platform.

The utility model provides a friction testing machine, belongs to the technical field of titanium alloy ball testing equipment, and particularly relates to a friction testing machine for titanium alloy ball cladding, which comprises a base, and a supporting structure is connected above the base through a fixed gear. One side of the supporting structure is connected with a movable gear through a transmission gear corresponding to the fixed gear, a friction roller is connected above the movable gear, and through the movable gear with the friction roller arranged on the base, when different friction rollers are replaced, the friction roller drives the movable gear to adaptively abut against a to-be-tested ball, and therefore the ball can be tested. Linkage with the fixed gear is achieved through transmission of the transmission gear, the fixed gear drives the to-be-tested ball to rotate together through the supporting structure, transmission is transmitted to the movable gear to drive the friction roller to rotate, and the real use friction condition is simulated.

The invention discloses a friction testing machine and a friction testing method for an elevator traction sheave under a micro-motion working condition, and relates to the technical field of elevator traction sheave tests.The friction testing machine comprises a workbench, a traction motor and a plurality of steel wire ropes, and an output shaft of the traction motor is coaxially provided with the traction sheave; a guide wheel is rotatably arranged on the workbench, a tensioning wheel is slidably arranged on the workbench, the moving direction of the tensioning wheel is parallel to the Z-axis direction, and the central axis of the tensioning wheel, the central axis of the guide wheel and the central axis of the traction wheel are parallel to one another; a plurality of steel wire ropes are wound on the tensioning wheel, the guide wheel and the traction wheel; the tensioning wheel is further in transmission connection with a telescopic mechanism enabling the tensioning wheel to move in the Z-axis direction. A control mechanism used for controlling the traction motor to slightly move on the workbench in the Y-axis direction is further arranged on the workbench. Through a simulation test, the stress state of the traction sheave in the test process can be controlled in combination with controllable temperature, controllable stress and controllable oil supply under the micro-motion state of the traction sheave, and the abrasion state of the traction sheave is researched.

The invention relates to the technical field of PVD coating detection, in particular to a PVD coating detection device which comprises a friction testing machine shell, a precision electronic scale and a friction mechanism arranged on the friction testing machine shell, the side wall of the friction testing machine shell is fixedly connected with a T-shaped base, and the top of the T-shaped base is fixedly connected with a heightening table. The precision electronic scale is fixedly connected to the top end of the heightening table, an outlet is formed in the side wall of the friction testing machine shell, an L-shaped plate is fixedly connected to the inner side of the outlet, a sliding plate is transversely and slidably connected to the inner side of the L-shaped plate, and a top plate is longitudinally and slidably connected to the side wall of the sliding plate. A test block weighed on the precision electronic scale can be automatically placed on the friction mechanism to be tested, and the test block can be placed back to the precision electronic scale to be weighed after the test is finished, so that the test block does not need to be repeatedly disassembled by detection personnel, and the convenience performance of the device is greatly improved.

The invention relates to the technical field of steel wire rope detection, in particular to a deep sea exploration steel wire rope bending friction fatigue test device and method, a steering wheel is located at the upper end of a gap between a long wheel belt and an inner rail, a steel wire rope is attached to the arc outer wall of the steering wheel to smoothly extend, and a detection box is filled with seawater with the liquid level not higher than the lower end face of a cross beam; the long wheel belt and the inner rail are respectively provided with a wire groove, the outer diameter of the wire groove is larger than that of the steel wire rope, and a coral rock simulation layer or a rubber water belt is arranged in the wire groove. Friction is simulated through contact between the steel wire rope and the coral rock, and then bending and friction tests of the steel wire rope in a deep sea environment are simulated through reciprocating traction of the steel wire rope, so that the accuracy of simulation detection is improved, and the use safety of the steel wire rope is ensured.

The utility model relates to the technical field of color fastness testers, in particular to a dry and wet rubbing color fastness tester which comprises an equipment box body, a supporting rod is fixedly connected to the position, close to the upper side, of the front surface of the equipment box body, a friction assembly is arranged at the front end of the supporting rod, and the friction assembly comprises a first electric cylinder and an equipment shell. An electric motor is fixedly mounted in the equipment shell, a friction head is fixedly connected to the output end of the electric motor, a first connecting rod is fixedly connected to the position, close to the lower side, of the front surface of the equipment box body, a fixing table is fixedly connected to the front end of the first connecting rod, and a fixing mechanism is arranged on the surface of the fixing table; the fixing mechanism comprises a first fixing frame, a second electric cylinder and a second fixing frame; the fixing table, the first fixing frame and the second fixing frame are matched to fix the fabric, meanwhile, the first fixing frame is lifted upwards through the second electric cylinder, the fabric is supported upwards, the elasticity of the fabric in the friction process is reduced, the friction test is effectively conducted on the fabric, and the detection precision is improved.

The invention relates to the technical field of wear resistance testing, in particular to a wear resistance testing device for a wear-resistant coating, which comprises a testing box, a mounting groove is formed in the top of the testing box, a protective cover is hinged to the top of the mounting groove, and a reciprocating rotating mechanism for a rotating friction test and a reciprocating friction test is arranged on the right side of the top of the mounting groove. A swing impact mechanism used for swing impact friction is arranged on the left side of the top of the mounting groove, supporting legs are fixedly connected to the four corners of the bottom of the test box correspondingly, and a control panel is fixedly mounted on the left side of the top of the test box. According to the device, reciprocating rotary friction testing and reciprocating linear friction testing are carried out on coatings of a plurality of substrates at the same time, the abrasion resistance of the coatings in different friction states can be tested, the detection accuracy is improved, reciprocating rolling friction testing and impact testing on the coatings are achieved through the swing impact mechanism, and the testing efficiency is improved. The wear resistance of the coating in various environments can be conveniently simulated, the detection can be performed without replacing equipment, and the test efficiency is high.

The utility model discloses a rock sample friction test device which comprises a bottom plate, a first movable seat, a second movable seat, a first force sensor and a second force sensor, the first movable seat is connected to the bottom plate in a sliding mode, the first force sensor is arranged between the bottom plate and the first movable seat, and the second force sensor is arranged between the bottom plate and the second movable seat. The force sensor is used for measuring the stress of the first movable seat and the bottom plate in the relative sliding direction; the second movable seat is connected to the first movable seat in a sliding mode, the relative sliding direction of the second movable seat and the first movable seat is perpendicular to the relative sliding direction of the first movable seat and the bottom plate, and the second force sensor is arranged between the first movable seat and the second movable seat. And the force sensor is used for measuring the stress of the second movable seat and the first movable seat in the relative sliding direction. The friction test device can be used for stably and conveniently carrying out friction test on the rock sample.

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 relates to a device and a method for testing the friction coefficient of a plate in an ultralow-temperature stamping forming process, and the device comprises a lath stretching module, a normal loading module, a lath temperature control module, a mold temperature measurement module and a guide module, the normal loading modules are arranged on the batten stretching module, horizontally located on the two sides of a batten to be tested and used for applying pressure to the batten, and the batten temperature control module is arranged on the batten stretching module, located below the normal loading modules and used for controlling the temperature of a friction test. The mold temperature measuring module is arranged in the batten stretching module to detect the initial temperature of a mold pressing block, and the guiding module is arranged on the batten stretching module and makes contact with a batten to be measured so that the batten can move in the vertical direction.

The invention discloses medicinal package friction coefficient detection equipment, and belongs to the technical field of medicine package detection. The device mainly comprises a detection seat, and a supporting plate is fixedly mounted on the back surface of the detection seat; the detection plate is arranged on the detection seat; the clamping assemblies are installed on the two sides of the detection plate through bolts, a first sliding rod is fixedly installed between the clamping assemblies, and the clamping assemblies are mainly used for clamping the medicine packaging film; the first sliding block is installed on the first sliding rod in a sliding mode. According to the medicinal package friction coefficient detection equipment, the electric heating block, the electric cooling block, the contact block and the friction block are arranged, when medicinal package friction detection is carried out, the temperature of a packaging film located in a non-area can be controlled through the electric heating block and the electric cooling block, and when the friction block makes contact with the packaging film, the friction coefficient of the packaging film is detected. The friction coefficient of the packaging film at different temperatures is detected, so that the friction test on the packaging film at different temperatures is realized.

The invention discloses a bearing friction test device for simulating a deep sea environment. The bearing friction test device comprises an autoclave body, a bearing friction test unit and a data acquisition unit, a water inlet is formed in the bottom of the autoclave body, a water outlet is formed in the top of the autoclave body, high-pressure and low-temperature water for simulating the deep sea environment is injected into the autoclave body through the water inlet so as to simulate the deep sea environment in the autoclave body, and a friction test is performed in the deep sea environment simulated by the autoclave body; the bearing bush friction test unit comprises a torque assembly and a tension assembly, the torque assembly is in rotary friction with the inner wall of the bearing bush, the tension assembly applies tension perpendicular to the rotating direction of the rotating shaft to the bearing bush, and the friction force of the bearing bush is adjusted through the tension assembly; according to the invention, a material part-level bearing friction test is carried out in a simulated deep sea environment, the wear and wear performance of a material as a part-level bearing in the deep sea environment is truly evaluated, a basis and guidance are provided for development, material selection and protection of deep sea equipment bearing materials, and the method has important scientific significance and engineering application value.

The invention provides a method and a device for testing the wear resistance of a self-lubricating gasket and a method for optimizing the assembly stress of a self-lubricating knuckle bearing. The method for testing the wear resistance of the self-lubricating gasket comprises the following steps: attaching the self-lubricating gasket to the surface of a substrate; a pressure load is applied to the surface of the base body attached with the self-lubricating gasket, the pressure load is determined based on preset pressure stress and the area of the surface of the base body attached with the self-lubricating gasket, and the preset pressure stress is set according to the assembly stress of the self-lubricating knuckle bearing installed on the bearing seat; and carrying out friction test on the self-lubricating gasket after the pressure load is applied, and evaluating the wear resistance of the self-lubricating gasket. According to the method, the stress condition of the self-lubricating gasket in the actual service process after the self-lubricating joint bearing is mounted on the bearing race in an interference manner can be simulated without using a finished bearing, and the influence of the assembly stress of the self-lubricating joint bearing on the wear resistance of the self-lubricating gasket can be accurately evaluated; and guidance is provided for optimization of installation and fixing process parameters and service parameters of the self-lubricating bearing.

The invention discloses a data driving-physical model fused gear meshing efficiency prediction method and system, and belongs to the technical field of gear meshing efficiency prediction. The method comprises the following steps: establishing a data driving model for predicting a sliding friction coefficient; constructing a gear pair meshing efficiency model in combination with gear dynamics and kinematics theories; the sliding friction coefficient output by the data driving model is substituted into the gear pair meshing efficiency model, a data driving-physical model fused gear average meshing efficiency prediction model is obtained, and gear meshing efficiency prediction is achieved. Compared with the prior art, the method has the beneficial effects that more than 6000 groups of basic friction test data are learned based on a machine learning algorithm XGBoost, data-driven tooth surface friction coefficient calculation is realized, the obtained friction coefficient is combined with a gear kinematics and dynamics model, and effective prediction of gear meshing power loss and meshing efficiency is realized.

The invention discloses a wide-temperature-range self-lubricating coating friction and wear performance evaluation method and a test system. The method comprises the following steps: preparing a sample of a self-lubricating coating on the surface of a matrix, cleaning the matrix sample and a counter-abrasion sample, carrying out friction test at multiple temperature points by adopting set parameters, recording change data of friction coefficients along with time in real time, calculating stable friction coefficients at each temperature point according to the data of the friction coefficients, and calculating the abrasion rate according to the abrasion crack condition. Therefore, accurate, reliable and repeatable coating tribological performance data can be obtained. According to the method, the change rule of the coating performance along with the temperature can be comprehensively represented, the problems that an existing test method is large in data fluctuation and cannot truly reflect the wide-temperature-range service performance are solved, and a key test basis is provided for research, development, screening and application of the high-performance self-lubricating coating.

The invention relates to the technical field of detection equipment, in particular to a textile fabric wear resistance testing device which comprises a base, a multi-unit friction mechanism and an auxiliary mechanism are arranged on the base, each unit friction mechanism comprises a pressing block inserted into the inner wall of the base in a sliding mode, and the pressing blocks are used for pressing cloth. And a mounting frame for driving the friction unit to rotate is mounted on the inner wall of the top of the pressing block. Through the arranged multi-unit friction mechanism, in the process that a mounting frame drives a grinding block and a grinding disc to revolve, the grinding block slides in a reciprocating mode in the radial direction, meanwhile, an impact rod continuously impacts cloth at the circle center, and a second gear drives the grinding disc to rotate; therefore, friction tests in different forms can be carried out on circumferential areas with different radiuses of the cloth, the test effect is greatly improved, the contingency of a detection result is prevented, and the conditions that the friction form of a detection mode in the prior art is relatively single, the detection mode is difficult to adapt to different types of cloth, and the detection effect is relatively poor are avoided.

The invention discloses a friction test bench, which comprises a vibration isolation platform, a sliding table, a heating piece, a first bracket, a pressure sensor and a temperature sensor, and is characterized in that the vibration isolation platform extends along a first direction; the sliding table is movably connected with the vibration isolation platform. And the heating piece is connected to the top surface of the sliding table and is used for mounting a lower friction sample and heating the lower friction sample. The first support is connected with the vibration isolation platform. One end of the pressure sensor is connected with the first support, the other end of the pressure sensor is used for installing an upper friction sample, and the upper friction sample is located on the top face of the lower friction sample. The temperature sensor is connected with the vibration isolation platform and used for sensing the temperature of the lower friction sample.

According to the grain friction coefficient measuring device and the measuring method thereof, the sensor is used for judging grain falling, the inclination angle during static friction measurement is controlled through a sensor signal, the precision is high, measurement is carried out according to multiple grains falling for multiple times, the measuring efficiency is high, and the measuring precision is high. And the static and dynamic friction coefficients of the same sampling batch can be continuously measured. According to the measuring method, the average angle is calculated through weight of different falling angles and the number of multiple grains sampled at a time, and the method is closer to a static friction test of a comprehensive whole. Comprising a static friction measuring table used for measuring the static friction coefficient, and a disc collecting bin mechanism used for receiving materials falling from the static friction measuring table at different inclination angles; the single-grain discharging mechanism is used for receiving the materials output by the discharging holes and discharging the materials in a single-grain mode. And the dynamic friction coefficient measuring mechanism is used for receiving the material falling from the single grain discharging mechanism and measuring the dynamic friction coefficient of the grains.

The invention relates to a device and a method for testing friction force of a launch canister, and belongs to the field of devices for testing specific target force. A method for testing the friction force of a launch canister comprises the following steps of: vertically placing the launch canister, hoisting a load into the launch canister at a constant speed or taking the load out of the launch canister at a constant speed by using a hoisting mechanism, and measuring the corresponding relationship between the tension of the load and time by using a tension sensor, friction force can be obtained according to the tension and the gravity, a displacement time detection mechanism located in the launch canister is used for detecting the corresponding relation between displacement and time when the load is loaded or unloaded, the corresponding relation between the friction force and the time is obtained according to the tension and the gravity, and finally the friction force corresponds to time in the relation between the friction force and the time and the relation between the displacement and the time. Therefore, a problem that only the relationship between the friction force and the time can be obtained and the influence of each position of the launching canister on the friction force cannot be known in the prior art can be solved.

The invention relates to the technical field of friction performance testing equipment, in particular to multidirectional dynamic loading sealing rubber ring wear resistance testing equipment which comprises a testing box, a base plate is arranged at the bottom of the testing box in a sliding mode through an adjusting rod, and a plurality of testing cylinders are installed on the top of the base plate in the length direction. A mounting plate is fixed between two opposite side walls in the test box, a plurality of rotating shafts are rotatably arranged on the mounting plate in a penetrating manner in the length direction, one end, penetrating through the mounting plate, of each rotating shaft extends into the test cylinder, and the bottom of one end, extending into the test cylinder, of each rotating shaft is in threaded sleeve connection with a sliding sleeve; an anti-rotation mechanism is arranged between the sliding sleeve and the testing cylinder, a second fixing sleeve is rotationally arranged on the outer side of the sliding sleeve, and a rubber ring positioning mechanism is arranged on the second fixing sleeve. The rubber ring friction testing device can conduct friction testing on a rubber ring in multiple modes, the testing mode of the rubber ring is expanded, and the range breadth of a testing result is improved; therefore, an accurate friction test result is obtained.

The utility model discloses a shield tunnel synchronous grouting groutability test device which comprises an air compressor, the air compressor is connected with an air cylinder through a slurry air pressure pipeline, the slurry air pressure pipeline is fixedly installed with an inlet of the air cylinder, a piston capable of sliding left and right is arranged in the air cylinder, and the piston is connected with the air cylinder. A grouting pipeline is fixedly mounted at an outlet of the air cylinder; and a pressure gauge I and a pressure gauge II are mounted on the grouting pipeline. The device combines the characteristics of synchronous grouting construction, quantitatively measures the fluidity of the slurry based on the flowing pressure difference of the slurry, not only solves the problem that the slurry with the fluidity greater than 30cm cannot be tested by a jumping table method, but also considers the friction between the slurry and the pipe wall, so that the test result is closer to the actual situation on site, and the test result is more accurate. And a test basis is provided for optimization of the fluidity of the slurry.

The invention relates to a spindle friction testing device and method, and the method comprises the following steps: carrying out the positioning of a friction sensitive region of a target spindle based on a stress distribution result, and obtaining the friction sensitive region of the target spindle; performing microstructure imaging on the friction sensitive area to obtain a microstructure image of the friction sensitive area; performing texture feature analysis on the friction sensitive area microstructure image to obtain a microstructure texture feature set; carrying out wear mode identification based on the microstructure texture feature set to obtain a wear mode of the target main shaft under the friction effect; and carrying out surface topography evolution analysis on the target main shaft based on the wear mode to obtain a surface wear evolution rule, and formulating a maintenance strategy of the target main shaft based on the surface wear evolution rule, thereby solving the technical problem that there is no effective means to position and analyze a friction sensitive area in the main shaft.

The invention relates to an interior trim part abnormal sound simulation analysis method and device, test equipment and a test system. The simulation analysis method comprises the steps that an abnormal sound simulation analysis model is adopted to conduct simulation analysis on a target friction position corresponding to a target interior trim part, and the maximum relative displacement corresponding to the target friction position is determined; performing friction testing on a target friction position corresponding to the target interior trim part, and determining a friction abnormal sound displacement interval corresponding to the target friction position; and according to the maximum relative displacement corresponding to the target friction position and the friction abnormal sound displacement interval, the abnormal sound risk probability is determined. The method can quickly determine the abnormal sound risk of the interior trim part in the design stage.

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 discloses a high-frequency reciprocating friction testing machine for simulating a high-temperature gas environment atmosphere and a testing method, and relates to the technical field of basic tribology testing of kinematic pairs under complex working conditions. The high-frequency reciprocating friction testing machine comprises a weight loading and force measuring module, a high-frequency reciprocating motion and temperature control module and a gas environment adjusting module, the weight loading and force measuring module comprises a loading mechanism lifting platform, a loading mechanism and a quick-release clamp; the loading mechanism lifting platform is connected with a loading mechanism, and a quick-release clamp is connected below the loading mechanism; the high-frequency reciprocating motion and temperature control module comprises a lower sample mounting container and a high-frequency voice coil motor module; the sample mounting container is driven by the high-frequency voice coil motor module to reciprocate; the gas environment adjusting module comprises a gas environment box and a gas tank. Multiple influence factors such as the temperature, the motion frequency, the motion stroke, the loading force and the environment atmosphere are comprehensively considered, and a reliable basic tribology test system is established for the kinematic pair under the complex working condition.

The invention discloses a shock absorber friction force test device, and relates to the technical field of shock absorber testing. The three-degree-of-freedom platform is used for driving the workbench to move along the X axis, move along the Y axis and rotate around the Z axis; the suspension mechanism comprises an installation frame, a shock absorber, a swing arm assembly and wheels. The mounting frame is arranged on the workbench; one end of the damper is connected with the swing arm assembly, and the other end of the damper is connected with the mounting rack; a displacement sensor and a force sensor are arranged on the shock absorber; the driving mechanism is used for driving the wheels to rotate; the bearing assembly is used for bearing wheels; the vibration mechanism is arranged on the rack and used for driving the bearing platform to vibrate up and down; and a processor. The damper friction force testing device can effectively simulate the state of the damper in the real working condition, and then the displacement sensor and the force sensor are used for recording the excitation speed and the damping force of the damper respectively, so that the friction force borne by the damper in the real working condition can be analyzed.