177 results about "Life testing" patented technology

The invention relates to a dynamic adjust gyroscope life forecasting method based on gray model. By data collection of vibration effective value, random drift and environmental temperature parameter which are preprocessed using radial neural networks, influence of environmental temperature on vibration effective value and random drift is eliminated and random drift and effective value just related to time are obtained by subtracting drift constant value term, then trend term of vibration effective value and random drift are extracted by using wavelet transformation and gray model are built separately for their trend term. The smaller data in two values of life predicted of dynamic adjust gyroscope unless two predicted values exceeding performance parameter limitation when dynamic adjust gyroscope is considered losing effect. The invention uses performance parameter of life probative period of product to predict its life, showing discipline of performance parameter and life of dynamic adjust gyroscope. It is easy and convenient economical and reliable.

The invention provides a fuel cell bipolar plate coating life prediction method, and the method comprises the steps: determining a termination condition of a bipolar plate coating life test; based on the accelerated corrosion test platform and the simulated cathode potential of the fuel cell under the normal operation condition, performing an off-line real life test on the bipolar plate coating to obtain a first corresponding relation between the contact resistance and the real test time; adjusting a test condition, and performing an offline accelerated life test on the fuel cell bipolar plate coating to obtain a second corresponding relation between the contact resistance and the accelerated test time and a corresponding first accelerated test duration when the offline accelerated life test reaches a termination condition; obtaining a mapping relation between the real test time and the accelerated test time based on the first corresponding relation and the second corresponding relation; and obtaining a prediction result of the service life of the fuel cell bipolar plate coating based on the first acceleration test duration and a mapping relation between the real test time and the acceleration test time. The prediction accuracy is improved; and the prediction cost is reduced.

The invention discloses a thyristor failure test device, which relates to the technical field of thyristor life test, and comprises a power supply, a protective resistor, an artificial neutron source, a data acquisition device and a processing module, and is characterized in that the power supply is used for providing direct current bias voltages with different sizes and different polarities for a sample thyristor; the artificial neutron source is used for enabling random single-particle burnout events to occur in the sample thyristor; the protection resistor is used for limiting main loop current; the data acquisition equipment is used for acquiring bias voltage signals on the sample thyristors in real time; and the processing module is used for recording the occurrence time of the single-particle burnout event according to the bias voltage signal on the sample thyristor when the single-particle burnout event occurs in the sample thyristor, and fitting the occurrence time of the single-particle burnout event and the corresponding bias voltage signal to obtain the failure rate of the thyristor. According to the invention, the condition of irradiation failure of the thyristor under voltage bias under the actual working condition can be truly reflected.

The utility model discloses a device for testing the service life of a gear motor, and particularly relates to the technical field of detection equipment, which comprises a torque sensor and an input transition seat. The torque sensor, the input transition seat and the load gear motor are all arranged on the workbench, the tested gear motor is fixedly installed at one end of the input transition seat, and an output shaft of the tested gear motor is fixedly connected with the input end of the input transition seat. The output end of the input transition seat is fixedly connected with the input end of a torque sensor through a first coupler, and the output end of the torque sensor is fixedly connected with a rotating shaft of a load gear motor through a second coupler. According to the utility model, the load gear motor and the input transition seat are arranged, the tested gear motor is fixed on the input transition seat and is powered by the tested gear motor, and the load gear motor is arranged at the tail end to serve as a load, so that the working environment of a conventional gear motor is simulated, and the service life of the gear motor can be conveniently tested after long-time operation of the gear motor.

The invention relates to the field of electrical variable measurement, in particular to an acceleration factor calculation method for a highly accelerated life test, which comprises the following steps: carrying out heating and cooling tests on a PCB (Printed Circuit Board) product, simultaneously carrying out vibration tests on the PCB product, and calculating an acceleration factor of the PCB product for testing the life of the PCB product: H, carrying out cyclic heating and cooling on the PCB product so as to realize rapid temperature change of the PCB product; n, high-frequency random vibration waves are applied to the PCB product, so that the PCB product is in a high-frequency random vibration state; wherein the step H and the step N are carried out synchronously, so that fatigue strength generated by the step H and the step N on the PCB product is coupled to obtain an acceleration factor A; the high-frequency random vibration wave contains energy of more than 2000Hz, so that all components on the PCB product can be vibrated. According to the acceleration factor calculation method for the highly accelerated life test provided by the invention, all failure faults can be easily found in a laboratory, and the test accuracy is improved.

The invention discloses a device for testing the service life of a disc spring under a special working condition, which belongs to the technical field of disc spring testing and comprises a base and a disc spring body, four testing cylinders and a testing lifting plate are sequentially arranged above the base, a limiting cover plate is arranged above each testing cylinder, a driving assembly and a fixing rod are arranged in each testing cylinder, and a liquid storage tank is fixed on the outer side wall of the base. By arranging the wave-shaped action grooves and the spraying channels which are alternately arranged, the driven pressing plate synchronously generates axial lifting motion during rotation so as to compress and release the disc spring body, acid mist is sprayed to the surface of the disc spring body through the spraying pipe, fatigue stress and a dynamic corrosion environment are synchronously applied in a single device, and the service life of the device is prolonged. Through cooperative use of the action gear and the adjusting assembly, when the rotating shaft is adjusted to rotate, the action gear generates a time sequence difference by using the notch to control the locking and unlocking states of the locking blocks with different heights in the fixed rod, so that sequential independent loading test of odd-numbered and even-numbered disc springs in the same disc spring group is realized.

The invention relates to the technical field of lithium batteries, in particular to a rapid charging method of a lithium iron phosphate battery and a cycle life testing method, and the rapid charging method comprises the following steps: carrying out at least one section of constant current charging on the lithium iron phosphate battery; and stopping charging the lithium iron phosphate battery when the current of the tail-section constant current charging is not greater than the set current and the cut-off voltage of the constant current charging is not less than the set cut-off voltage. According to the rapid charging method provided by the invention, the lithium iron phosphate battery is subjected to multi-section constant-current charging, so that the charging time of the lithium iron phosphate battery is shortened, the rapid charging capability of the lithium iron phosphate battery is improved, and the technical problem of inaccurate SOC estimation of the lithium iron phosphate battery system by a traditional rapid charging method is solved.

The invention belongs to the technical field of fault diagnosis and maintenance of mechanical equipment, and provides a bearing residual service life prediction method considering a service degradation diffusion phenomenon, and the method comprises the steps: picking up the accelerated life test data of a rolling bearing at each measurement point through an acceleration sensor; recombining the normalized data into a two-dimensional matrix, dividing the two-dimensional matrix into a training data set and a test data set, and creating a label; constructing a pre-training condition time diffusion network prediction model, and performing feature extraction on the training data set by using a pre-training condition encoder to obtain a condition vector; a prediction sequence is obtained by using the diffusion model and the condition vector, then the prediction sequence is smoothed by using a Lowess method, and a residual service life value of the bearing is obtained in combination with a least square method; and a difference loss function and an optimization algorithm are utilized to optimize training and construct a pre-training condition time diffusion network prediction model, and the residual service life of the bearing is predicted. The method can accurately predict the residual service life of the bearing.

The utility model provides a notebook computer rotating shaft service life testing machine. The notebook computer rotating shaft service life testing machine comprises a bottom plate, a torsion detection device, a swinging device, a clamping device and a clamping jig, the torsion detection device and the swinging device are distributed on the bottom plate left and right; the torsion detection device comprises a supporting plate, a torsion sensor and a connecting frame; the supporting plate is fixed on the bottom plate; the connecting frame is installed on the right side of the supporting plate through the torsion sensor. The clamping device is fixed to the connecting frame and used for clamping and fixing the clamping jig. The clamping jig comprises a lower clamping seat and an upper clamping plate; the upper clamping plate is locked on the lower clamping seat through a screw, and a fixing piece of a product is clamped and fixed between the upper clamping plate and the lower clamping seat; the swinging device comprises a rotary driving device, a swinging arm, a connecting block and two limiting columns; the rotation driving device is installed on the bottom plate, and the power output end is connected with one end of the swing arm and used for driving the swing arm to swing around the X axis. The connecting block is mounted on the left of the swing arm; and the two limiting columns are distributed and mounted on the connecting block up and down.

The utility model discloses a high-pressure accelerated life testing machine. The high-pressure accelerated life testing machine comprises a testing machine body and a discharge port arranged at the front end of the testing machine body, an interlayer heat temperature difference circulating channel is arranged between the innermost wall and the secondary inner wall of the test machine body, a heating steam body is connected to the bottom of the interlayer heat temperature difference circulating channel, evaporated liquor is arranged at the position, close to the bottom, in the heating steam body, and a heating pipe is placed in the evaporated liquor. The heating pipe heats and evaporates the evaporation liquid to generate water vapor, the water vapor flows upwards to transfer heat to the outer side of the innermost wall of the test machine body for heat conduction, and the rest water vapor circulates along the layer heat temperature difference circulation channel to become water drops and flows back to the heating steam body again; compared with a traditional machine, the improved device has the advantages that condensate water on the surface of a tested product is minimum, the influence on the tested product is minimum, and compared with circulation of a fan in the same row, the heat convection circulation is better in uniformity, no mechanical structure equipment is more stable, and the like.

The utility model discloses a relay durability tester, belongs to the technical field of relay testing, and solves the technical problem that the existing relay life testing device is complex in circuit structure. The device comprises a DC power supply module and further comprises a test cabinet, the front side of the test cabinet is provided with a test panel, and the test panel is provided with a counter, a time controller and a relay connecting seat for plugging a relay to be tested; the relay connecting seat is provided with a coil pin and a normally open contact pin which correspond to a relay to be tested, the direct-current power supply module is electrically connected with the coil pin of the relay connecting seat through the time controller, the normally open contact pin of the relay connecting seat is electrically connected with the input end of the counter, and the direct-current power supply module is electrically connected with the power supply end of the counter; and the test panel is provided with a pressing mechanism for pressing the relay to be tested. According to the utility model, the counter, the time controller and the relay connecting seat are used to build the test circuit, the circuit structure is simple, and wiring is convenient.

This application provides a method, apparatus, device, and storage medium for detecting the lifespan of an in-vehicle air conditioning filter. In the method for detecting the lifespan of an in-vehicle air conditioning filter, the lifespan factor of the filter can be determined based on the air quality of the vehicle's driving environment and the circulation mode of the vehicle's air conditioning system. Based on the duration of the air conditioning fan speed being less than or equal to a specified setting, the duration of the fan speed being greater than a specified setting, the lifespan factor, and the total lifespan of the filter, the remaining lifespan of the air conditioning filter is calculated. Based on the remaining lifespan of the filter, corresponding filter maintenance reminder information is output. This implementation method can calculate the remaining lifespan of the in-vehicle air conditioning filter, eliminating the need for vehicle maintenance personnel to assess the filter's lifespan, thus saving labor costs. Furthermore, it can remind passengers to maintain the filter in a timely manner based on the remaining lifespan, preventing harm to passengers' health due to decreased filter performance.

The present invention relates to the field of battery life testing technology, and more specifically, to a fuel cell life prediction method for hydrogen-powered drones. The method first acquires and segments monitoring data. Then, by analyzing the flight monitoring data from the perspectives of the drone's flight and fuel cell output, it extracts the power demand, output capacity coefficient, and output attenuation coefficient. This data is then integrated with historical influences to obtain a corrected attenuation coefficient. Finally, the life attenuation rate is calculated based on the overall power demand. This method addresses the issue of inaccurate fuel cell life predictions caused by flight state interference, thereby improving the safety of hydrogen-powered drones during flight.

The utility model relates to the technical field of minority carrier lifetime detection, in particular to a minority carrier lifetime detection system which comprises a detection platform, a grabbing device, a feeding and discharging device and a control end. The feeding and discharging device comprises a feeding mechanism and a discharging mechanism, the feeding mechanism is arranged on one side of the detection platform, the discharging mechanism is arranged on the side, away from the feeding mechanism, of the detection platform, and the feeding mechanism and the discharging mechanism are in transmission connection; the grabbing device is arranged between the feeding mechanism and the discharging mechanism and used for taking and placing the battery pieces to be detected on the detection platform. The control end is electrically connected with the detection platform and the grabbing device. According to the utility model, the condition of minority carrier lifetime can be conveniently compared through the data recorded by the control end, and the influence on the detection result is reduced due to omission of the metal passivation process, so that the judgment can be intuitively carried out, and the state of the light injection process can be timely known.

The invention provides a SiC MOSFET DC power cycle accelerated life test system and method. The system comprises a DC power supply, a main power circuit, a conduction voltage drop measurement circuit and a controller. The main power circuit comprises N device sub-circuits which are connected in parallel, and each device sub-circuit is provided with a SiC MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor); the conduction voltage drop measuring circuit comprises N measuring sub-circuits which are respectively connected with the SiCMOSFETs of the N device sub-circuits; the measurement sub-circuit is used for measuring the conduction voltage drop of the SiC MOSFET when the connected device sub-circuit is switched on and the body diode voltage drop of the SiC MOSFET when the connected device sub-circuit is switched off in a preset cycle period; the controller is used for controlling the N device sub-circuits to be sequentially switched on within the power-on time, and only one device sub-circuit is switched on; and obtaining the body diode voltage drop sequence of the SiC MOSFET in the preset cycle period collected by each measurement sub-circuit, thereby determining the junction temperature sequence of the SiC MOSFET of each device sub-circuit. According to the invention, accelerated life tests of SiC MOSFETs under a plurality of different working conditions can be realized at the same time, and the test efficiency is improved.

This utility model discloses a comprehensive valve life testing device, belonging to the technical field of valve testing devices. The device includes a gantry frame, a base at the bottom of the gantry frame, a valve body to be tested at the top of the base, and a first half-box and a second half-box positioned opposite each other on the outside of the valve body. A fixing component is located on the top of the base, and a testing component is located on the top of the gantry frame. The fixing component includes a fixed shell fixedly connected to the top edge of the base, a first clamping unit located on the side of the fixed shell, and a second clamping unit positioned opposite each other on the outside of the fixed shell. The testing component includes a movable frame mounted on the top of the gantry frame, a sliding plate located on the top of the movable frame, a first displacement unit located between the sliding plate and the movable frame, and a commutator located on the side of the sliding plate. A second displacement unit is located between the movable frame and the gantry frame. This utility model, through its fixing and testing components, offers convenient operation and improves testing efficiency.

The invention relates to the technical field of sliding table testing, in particular to a three-axis sliding table automatic testing system and method, electronic equipment and a storage medium. The system has the advantages that the Python script is integrated with the mechanical sliding table control module, the image recognition module and the report generation module, full-closed-loop automatic testing from button pressing to result analysis is achieved, and manual operation errors are eliminated. Compared with a traditional manual method, the test efficiency is improved by more than 80%, the single test period is shortened from 8 seconds to 1.5 seconds, the method is particularly suitable for a ten thousand secondary service life test scene, the labor cost is remarkably reduced, full-process automation and test efficiency improvement are achieved, and the consistency of pressing actions is ensured by combining a dynamic G code generation technology with pressure sensor feedback; through the multi-scale SSIM algorithm and histogram equalization processing, the identification accuracy of 98% is still kept when the illumination change is + / -500 lux, the problem of misjudgment caused by ambient light interference in a traditional method is solved, and the high-precision control and environment anti-interference capability is improved.

The present invention is an accelerated life test system for motor bearings under the action of multiple stresses. The present invention relates to the technical field of motor bearing life test. By applying electric brushes to both ends of the inner and outer rings of the bearing, the voltage stress exerted on the bearing during normal operation of the motor can be fully simulated. The number of levels, amplitude, frequency, and switching speed of the analog voltage generated by the bearing voltage simulation device can be adjusted, and a single test system can simulate the real bearing voltages borne by bearings in motors of various power ratings. The temperature of the bearing is regulated by a temperature control device, and a radial loading force is applied to the rotating shaft by a radial loading device. The data acquisition device processes the signals collected by the sensors and then transmits them to the host computer for real-time monitoring and data storage. The present invention can study the influence and action mechanism of bearing current on bearing life under multiple stresses, thereby making up for the deficiencies of the missing related test devices.

The utility model relates to equipment for detecting the telescopic service life of a shock absorber. The equipment comprises a base, a baffle plate fixedly arranged on the base, a driving mechanism fixedly arranged on the base, an electric control mechanism fixedly arranged on the base, and a detection mechanism fixedly arranged on the base, the driving mechanism comprises a motor fixedly arranged on the base, a fixing assembly fixedly arranged on the base, an adjusting assembly fixedly arranged on the motor and a pushing assembly fixedly arranged on the adjusting assembly. The problem that existing shock absorber telescopic life detection equipment can only detect shock absorbers of a single model is solved.

The application discloses a semiconductor EPI process bulb life test device and a test method, and belongs to the technical field of fault prediction and health management, and comprises the following steps: collecting the resistance values of filaments in each bulb under different states through a resistance measurement module, acquiring an actual temperature change curve of the filaments, determining a nonlinear inflection point, and analyzing the aging characteristics of the filaments before and after the nonlinear inflection point; performing accelerated life test, adopting a double-voltage input cycle method to periodically load voltage on the filaments, and recording the resistance value change curves of the filaments under different voltage stress levels; and performing multidimensional test in cooperation with an execution device to simulate an actual use environment. In the technical scheme implementation process of the application, the resistance values of filaments in each bulb under different states are collected through the resistance measurement module, the temperature change curves of the filaments are acquired, then the nonlinear inflection point is determined, and the life is analyzed before and after the inflection point by using different methods, so that the current life of the bulb can be accurately acquired.

The present invention discloses bidirectional, variable-torque friction brake testing equipment and methods, comprising: a reverse drive assembly, a fixture for a test piece, a test assembly, and a forward drive assembly, all mounted axially in sequence on a base plate. The product under test is mounted within the fixture for the test piece via a bearing, the input shaft of the test piece is spline-connected to the input shaft of the fixture for the test piece, and the output shaft of the test piece is spline-connected to the output shaft of the fixture for the test piece. The present invention can be used to test the dynamic and static transmission characteristics and slip torque of the friction brake product under test at room temperature and pressure, as well as the transmission performance and slip torque of the friction brake product under test in thermal or vacuum environments. It can also be used for life testing of the friction brake product under test, among other applications.

The invention relates to the technical field of motor testing, in particular to a durability testing device for a permanent magnet type stepping motor, which comprises a testing machine, a driving piece, a piece to be tested, an electrical sensor and a grounding wire, the device is characterized by further comprising an electric measurement shielding shell, an electric isolation signal transmission shaft, a fixed plate, a bidirectional cam, an electromagnetic isolation assembly, an electric measurement signal transmission connection assembly and an electromagnetic damping type current discharge assembly, wherein the electric measurement shielding shell is fixed in the testing machine; according to the invention, the electric measurement shielding housing, the electric isolation signal transmission shaft, the bidirectional cam, the electromagnetic isolation assembly, the electric measurement signal transmission connection assembly and the electromagnetic damping type current discharge assembly cooperate with each other; the problem of test result distortion caused by thermal attenuation, electrocorrosion and electromagnetic interference in the permanent magnet type stepping motor durability test in the prior art is solved, and the permanent magnet type stepping motor durability test device has the remarkable advantages of high precision, high reliability and long service life test.

The utility model relates to a rolling bearing life testing machine, which belongs to the technical field of testing machines and comprises a base and a box body, a testing mechanism is arranged at the top of the base and comprises a motor fixedly mounted at the top of the base, a torque sensor is fixedly mounted at the top of the base, a bearing seat is fixedly mounted in the box body, and the bearing seat is fixedly mounted in the box body. And a radial hydraulic cylinder is fixedly mounted at the top of the box body. According to the rolling bearing service life testing machine, the upper limit of the rotating speed of the testing machine is high, the upper limit of the rotating speed of the motor is increased, a lubricating system is additionally arranged, the bearing seat is of an integral box type structure, and therefore testing under the condition that a tested bearing is not installed in a centered mode can be completed; the test under the condition of insufficient lubrication of the test bearing can be completed, life prediction is completed by adjusting the amount of lubricating oil entering the test bearing seat and the temperature, and the state of the bearing is judged by measuring the rotating speed and the torque of a rotating shaft by adding a dynamic torque sensor.

This invention provides a method and system for life testing of a transmission mechanism in a vehicle reducer. The method includes: assembling the transmission mechanism under test with a braking mechanism; placing a load on a track, such that the load can be subjected to force by the braking mechanism in a braking state, wherein the load simulates a vehicle, and the load's velocity relative to the track along the track's extension direction is 0 when placed on the track; controlling the transmission mechanism under test to drive the braking mechanism to move, causing the braking mechanism to continuously switch between a braking state and a releasing state; collecting state data of the transmission mechanism under test when it drives the braking mechanism; and determining the lifespan of the transmission mechanism under test based on the state data. The method provided by this invention can relatively accurately simulate the actual working state of the transmission mechanism under test, obtain state data of the transmission mechanism under test, and, by analyzing the state data, can relatively accurately detect the lifespan of the transmission mechanism.

This utility model relates to the field of hydraulic oil testing technology for engineering machinery, specifically a hydraulic oil oxidation life testing device. The device includes a main body with an outer frame. An equipment cavity is formed inside the outer frame, and an oil tank is fixed to the bottom of the equipment cavity. In this utility model, during a circulation simulation process in a circulating pipeline, a plunger pump, in conjunction with this testing device, can simulate the operating conditions of engineering machinery equipment. Hydraulic oil oxidation durability tests are conducted under high temperature, high pressure, ventilation, and the presence of a Cu catalyst. By examining indicators such as changes in oil viscosity, increase in acid value, sludge formation, and remaining oxidation life, the device can monitor the performance change trend during oil degradation, comprehensively evaluate the oxidation durability of the hydraulic oil, predict the service life of the oil in the equipment, thereby reflecting the true lifespan of the oil, improving evaluation efficiency, and also enabling comparative experiments with multiple samples, which is more conducive to the screening of oil formulations.

1. Name of the product in this design: Combustion Controller Tester. 2. Purpose of this design: To test all performance parameters and lifespan of the controller. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A method for conducting structural fatigue life testing of a bearing, in which a cam embedded in the bearing under test generates a rotational dynamic radial expansion and transmits the expansion through the bearing to a load collar compactly mounted on the periphery of the bearing, forcing the load collar to deform synchronously with the expansion, thereby applying, together with the cam, a rotational dynamic strain pressure load, mainly in the radial direction in both inward and outward directions, to the bearing, based on the elasticity of the load collar itself, as a test load for the structural fatigue life testing of the bearing. Based on the above method, the present invention also provides a holding mechanism that provides a rotation-resistant support for the load collar and a bearing rotation test rig capable of assembling the holding mechanism.

This invention relates to the field of shift lever flexibility and life testing technology, specifically to a shift lever flexibility and life testing device, including a testing robot, a base, a shift lever, and a testing platform. The base is placed on the testing platform, and the shift lever is hinged to the base. The testing robot is fixedly installed on the top of the shift lever. A locking device is bolted to the testing platform, comprising a lower mold mounted on the testing platform by screws, an upper mold cooperating with guide posts above the lower mold, motors mounted on both sides of the top wall of the upper mold by screws, a gear one fixedly installed at the motor output end, a housing threaded to both sides of the upper mold, a worm gear rotatably mounted on the upper part of the housing, a gear two fixedly mounted on the side of the worm gear near the upper mold, and a rotating shaft rotatably mounted on the lower part of the housing. This invention uses a worm gear mechanism to fix the upper and lower molds, preventing loosening, and utilizes the mold-closing mechanism to increase the force-bearing area on the shift lever base, enhancing the fixing effect.

The invention relates to the technical field of rotating shaft damping testing, and discloses a rotating shaft damping life testing machine. Comprising supporting legs, adjusting nuts in threaded connection with the surfaces of the supporting legs, a bottom plate arranged on the surfaces of the supporting legs in a sleeving mode, a supporting frame fixedly connected to the side wall of the bottom plate, a mounting assembly fixedly connected to the side wall of the supporting frame, a counting assembly fixedly connected to one side of the mounting assembly and a driving assembly fixedly connected to the other side of the mounting assembly. And the connecting assembly is fixedly connected to the surface of the counting assembly. The upper adjusting nut and the lower adjusting nut are arranged to be matched to adjust and lock the height, operation requirements of different testers are effectively met, the servo motor is adopted as a driving source, it is guaranteed that power output is stable and steering switching is rapid in the testing process, testing continuity and consistency are guaranteed, and testing efficiency is improved. A dense hole structure formed in the surface of the supporting plate can dredge and discharge friction scraps in time, so that the cleanliness of a test area is maintained, and cleaning and maintenance are facilitated.

The utility model discloses a lubricating grease service life testing device, which comprises a temperature control box and a grease service life testing mechanism, the grease service life testing mechanism is arranged in the temperature control box, the grease service life testing mechanism comprises a driving piece, a first gear, a second gear and a load assembly, the driving piece is in transmission connection with the first gear, and the second gear is in transmission connection with the load assembly. The first gear is meshed with the second gear, and the load assembly is installed on the second gear. Through friction meshing of the first gear and the second gear, the service state of lubricating grease in actual operation can be simulated, and accelerated aging conditions under actual working conditions can be simulated through applying a load by the load assembly, providing a preset temperature by the temperature control box and adjusting the rotating speed by the driving piece; therefore, the time required by traditional long-term whole machine testing can be greatly shortened, the evaluation efficiency can be improved, and the requirement for rapid model selection in product development can be met.