A test apparatus for detecting the performance of a sliding bearing under conditions of axial inclination of the shaft

Abstract

The utility model relates to sliding bearing performance test technical field, and disclose a kind of test equipment of detecting the performance of sliding bearing under axial line inclination operating mode, including bearing test assembly, including base, gear box shell, first oil supply shaft flange, second oil supply shaft flange, oil supply pin shaft, loading gear, loading bearing seat, loading bearing, thrust disc, flange sleeve, experimental bearing;Oil supply pin shaft is installed on loading bearing seat.The utility model provides the collaborative loading of realization high speed and big load, restores sliding bearing actual work scene, using modular design, simplifies transmission and loading structure, reduces the space occupied, while improving experimental bearing dismounting convenience, reduce maintenance cost, equipped with high-precision load sensor and pressure monitoring component, realize load, lubricating oil pressure real-time monitoring and feedback regulation, ensure that test data is accurate, through adjustable structure, adapt to the test demand of different specifications sliding bearing.

Description

Technical Field

[0001] This utility model relates to the field of sliding bearing performance testing technology, and in particular to a test device for testing the performance of sliding bearings under axial tilt conditions. Background Technology

[0002] In the fields of aviation, shipbuilding, and heavy machinery, sliding bearings need to operate stably under conditions of high speed, heavy load, and frequent start-stop cycles. Existing testing machines suffer from problems such as complex structure, low loading accuracy, and inconvenient assembly and disassembly when simulating simultaneous high speed and heavy load. Therefore, designing a sliding bearing testing machine that is compact, accurately loaded, and easy to maintain is of great significance. Utility Model Content

[0003] The purpose of this invention is to solve the problems in the prior art by proposing a test device for detecting the performance of sliding bearings under axial tilting conditions.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A testing device for detecting the performance of a sliding bearing under shaft tilting conditions, comprising: The bearing test assembly includes a base, a gearbox housing, a first oil supply shaft flange, a second oil supply shaft flange, an oil supply pin, a loading gear, a loading bearing housing, a loading bearing, a thrust plate, a flange sleeve, and a test bearing; the oil supply pin is mounted on the loading bearing housing, the loading gear mates with the oil supply pin, and the thrust plate is connected to the flange sleeve and used for axial positioning; The drive assembly includes a 110KW motor, a diaphragm coupling, a transmission gear shaft, a transmission gear, a transmission shaft flange, and a transmission shaft oil seal. The 110KW motor drives the transmission gear shaft through the diaphragm coupling, and the transmission gear meshes with the loading gear. The loading assembly includes a 20T electric cylinder, a 5T electric cylinder, a 0-15T pressure sensor, and a 0-5T pressure sensor. The 20T electric cylinder and the 5T electric cylinder apply radial loads in different directions, and the 0-15T pressure sensor and the 0-5T pressure sensor are used to detect the magnitude of the loads in different directions.

[0005] Preferably, it also includes a lubricating oil supply system, wherein the first oil supply shaft flange and the second oil supply shaft flange are connected to the oil supply pin shaft, and the lubricating oil enters the oil supply pin shaft through the first oil supply shaft flange and the second oil supply shaft flange and is delivered to the loading gear and the test bearing through the radial oil hole.

[0006] Preferably, the loading assembly further includes a 0-15T pressure sensor head and a 5T electric cylinder mounting support frame, wherein the 5T electric cylinder is fixed to the gearbox housing by the support frame.

[0007] Preferably, in the drive assembly, the transmission gear shaft is mounted inside the gearbox housing via bearings, and the transmission shaft oil seal is disposed between the transmission shaft flange and the gearbox housing to prevent lubricating oil leakage.

[0008] Preferably, an adjusting shim is provided between the thrust plate and the flange sleeve to adjust the axial clearance of the experimental bearing.

[0009] Preferably, the gearbox housing is provided with a nylon observation window for observing the meshing and lubrication status of the loading gear and the experimental bearing.

[0010] Preferably, the motor is mounted on the base via a motor pad, which allows for adjustment of the coaxiality between the motor and the drive shaft.

[0011] Compared with the prior art, this utility model provides a test device for detecting the performance of sliding bearings under axial tilt conditions, which has the following beneficial effects: 1. The test equipment for testing the performance of sliding bearings under axial tilt conditions has oil passages inside the first and second oil supply shaft flanges, which are connected to the oil passages of the oil supply pin shaft, serving as the inlet for lubricating oil to enter the test unit. The first oil supply shaft flange is the oil inlet end, and the second oil supply shaft flange is a spare oil inlet or vent end, which can be flexibly switched according to lubrication requirements.

[0012] 2. This test equipment for testing the performance of sliding bearings under axial tilt conditions has an axial main oil passage inside the pin shaft and multiple radial oil holes machined on the side wall. The lubricating oil is diverted from the main oil passage to the radial oil holes and accurately delivered to the contact surface between the loading gear and the test bearing to achieve lubrication. The two ends of the pin shaft are installed on the loading bearing seat through the loading bearing to ensure rotational stability.

[0013] 3. This test equipment for testing the performance of sliding bearings under axial tilt conditions uses a loading gear to form a friction pair with the inner or outer ring of the test bearing, transmitting the power of the motor to the test bearing through the gear, while simultaneously bearing the load applied by the loading component; the gear hub is provided with a positioning step, which cooperates with the shoulder of the oil supply pin to ensure accurate axial positioning. Attached Figure Description

[0014] Figure 1 This is a perspective view of a sliding bearing testing machine according to one embodiment of the present invention; Figure 2 This is a front view of a sliding bearing testing machine according to one embodiment of the present invention; Figure 3 for Figure 2 A cross-sectional view along the AA axis; Figure 4 This is a top view of a sliding bearing testing machine according to one embodiment of the present invention; Figure 5 for Figure 4 A cross-sectional view along the BB axis.

[0015] In the diagram: 1 110KW motor, 2 20T electric cylinder, 3 gearbox housing, 4 base, 5 5T electric cylinder, 6 nylon observation window, 7 first oil supply shaft flange, 8 second oil supply shaft flange, 9 0-5T pressure sensor, 10 5T electric cylinder mounting support frame, 11 diaphragm coupling, 12 loading gear, 13 drive shaft flange, 14 drive gear, 15 drive gear shaft, 16 oil supply pin, 17 loading bearing seat, 18 loading bearing, 19 thrust plate, 20 flange sleeve, 21 drive shaft oil seal, 22 0-15T pressure sensor head, 23 0-15T pressure sensor, 24 motor pad, 25 experimental bearing. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-5 A test apparatus for detecting the performance of sliding bearings under axial tilting conditions, comprising: The bearing test assembly includes a base 4, a gearbox housing 3, a first oil supply shaft flange 7, a second oil supply shaft flange 8, an oil supply pin 16, a loading gear 12, a loading bearing housing 17, a loading bearing 18, a thrust plate 19, a flange sleeve 20, and a test bearing 25. The oil supply pin 16 is mounted on the loading bearing housing 17, the loading gear 12 cooperates with the oil supply pin 16, and the thrust plate 19 is connected to the flange sleeve 20 and used for axial positioning. The drive assembly includes a 110KW motor 1, a diaphragm coupling 11, a transmission gear shaft 15, a transmission gear 14, a transmission shaft flange 13, and a transmission shaft oil seal 21. The 110KW motor 1 drives the transmission gear shaft 15 through the diaphragm coupling 11, and the transmission gear 14 meshes with the loading gear 12. The loading components include a 20T electric cylinder 2, a 5T electric cylinder 5, a 0-15T pressure sensor 23, and a 0-5T pressure sensor 9. The 20T electric cylinder 2 and the 5T electric cylinder 5 apply radial loads in different directions, and the 0-15T pressure sensor 23 and the 0-5T pressure sensor 9 are used to detect the magnitude of the loads in different directions.

[0018] It also includes a lubricating oil supply system, with the first oil supply shaft flange 7 and the second oil supply shaft flange 8 connected to the oil supply pin 16. The lubricating oil enters the oil supply pin 16 through the first oil supply shaft flange 7 and the second oil supply shaft flange 8 and is delivered to the loading gear 12 through the radial oil hole to contact the experimental bearing 25.

[0019] The loading assembly also includes a 0-15T pressure sensor head 22 and a 5T electric cylinder mounting support frame 10, with the 5T electric cylinder 5 fixed to the gearbox housing 3 via the support frame 10.

[0020] In the drive assembly, the transmission gear shaft 15 is mounted inside the gearbox housing 3 via bearings, and the transmission shaft oil seal 21 is provided between the transmission shaft flange 13 and the gearbox housing 3 to prevent lubricating oil leakage.

[0021] An adjusting shim is provided between the thrust plate 19 and the flange sleeve 20 to adjust the axial clearance of the experimental bearing 25.

[0022] The gearbox housing 3 is provided with a nylon observation window 6 for observing the meshing and lubrication status of the loading gear 12 and the experimental bearing 25.

[0023] The motor 1 is mounted on the base 4 via the motor pad 24, and the coaxiality between the motor and the transmission shaft can be adjusted.

[0024] The specific structure, assembly method, and working principle of each component are as follows: (I) Bearing Test Assembly: Core Load-Bearing and Test Unit Base 4: Provides stable support for the entire equipment, ensuring no vibration or displacement during the test; the gearbox housing 3 is fixed to the base 4 with high-strength bolts, and a positioning pin is provided at the bottom to ensure assembly accuracy.

[0025] First oil supply shaft flange 9 and second oil supply shaft flange 10: Both flanges have internal oil passages that connect to the oil passages of the oil supply pin 16, serving as inlets for lubricating oil to enter the test unit. The first oil supply shaft flange 9 is the oil inlet, while the second oil supply shaft flange 10 serves as a backup oil inlet or venting end, which can be flexibly switched according to lubrication requirements. When the second oil supply shaft flange 10 is needed as a backup oil inlet, the lubricating oil passage can be guided to this flange; if it is to be used as a venting end, the relevant pipelines are adjusted to allow gas to escape from the second oil supply shaft flange 10, thus adapting to different lubrication system operating conditions.

[0026] Oil supply pin 16: The pin has an axial main oil passage inside and multiple radial oil holes machined on the side wall. The lubricating oil is distributed to the radial oil holes through the main oil passage and accurately delivered to the contact surface between the loading gear 12 and the experimental bearing 25 to achieve lubrication. The two ends of the pin are installed on the loading bearing seat 17 through the loading bearing 18 to ensure rotational stability.

[0027] Loading gear 12: forms a friction pair with the inner or outer ring of the test bearing 25, transmits the power of the motor to the test bearing through the gear, and bears the load applied by the loading component; the gear hub is provided with a positioning step, which cooperates with the shoulder of the oil supply pin 16 to ensure accurate axial positioning.

[0028] Loading bearing housing 17 and loading bearing 18: Loading bearing 18 is a double row cylindrical roller bearing, which can withstand large radial loads (5-10T) and has a certain axial positioning capability to ensure the stable rotation of oil supply pin 16 and loading gear 12.

[0029] Thrust plate 19 and flange sleeve 20: Contact the thrust surface of the test bearing 25 to achieve axial positioning; flange sleeve 20 is connected to the oil supply pin 16 via threads and has an internal step for fixing the thrust plate 19; an adjusting shim is provided between them. By increasing or decreasing the number of shims or replacing them with shims of different thicknesses, the axial clearance of the sliding bearing 25 can be adjusted to meet the testing requirements of bearings of different lengths. Shim replacement procedure: 1. Disassemble related components: First, remove the bolts fixing the thrust plate 19 to allow for easy removal of the thrust plate 19. Since the thrust plate 19 is fitted with flange sleeve 20, flange sleeve 20 also needs to be loosened to completely remove the thrust plate 19. 2. Replace shims: After removing the thrust plate 19, the adjusting shims located between it and flange sleeve 20 can be seen. Adjust the number of shims or replace them with shims of different thicknesses according to the required axial clearance of the sliding bearing 25. 3. Reinstall components: After replacing the shims, reinstall the thrust plate 19 in its original position in the reverse order of disassembly. Sliding bearing 25: The sliding bearing to be tested is fixed by the positioning step and the loading gear 12 and the thrust plate 19. When disassembling and assembling, only the flange sleeve 20 and the thrust plate 19 need to be removed, without disassembling other parts, which is convenient.

[0030] (ii) Drive components: power transmission unit 110KW Motor 1: A three-phase asynchronous frequency converter motor is selected. The speed can be adjusted through the frequency converter (Shenzhen Invt GD350-01H-110G-4-L1) to meet the testing requirements of different high-speed working conditions. The motor is installed on the base 4 through the motor pad 24. The motor pad 24 consists of two steel plates, upper and lower, with an adjustment bolt in the middle. The height of the adjustment bolt can be adjusted (when adjusting, first loosen the fixing bolt to release the adjustment space, and tighten or loosen the screw on the lower or higher side according to the measured coaxiality to achieve vertical adjustment) to correct the coaxiality of the motor output shaft and the transmission gear shaft 15, and reduce transmission deviation and vibration.

[0031] Diaphragm coupling 11: It has the ability to compensate for the relative displacement (radial, axial, and angular) of two shafts, and can effectively absorb the impact load during motor start-up and speed regulation, protecting the transmission system. The two ends of the coupling are fixed to the motor output shaft and the transmission gear shaft 15 respectively by key connection. The core force-bearing component of the diaphragm coupling is the metal diaphragm assembly (usually composed of multiple layers of thin metal sheets with a certain degree of elasticity). When the motor starts or the speed regulation generates an impact load: the impact load will cause instantaneous torque fluctuation or slight displacement between the driving end (motor output shaft) and the driven end (transmission gear shaft 15); the metal diaphragm assembly will then undergo elastic bending, torsion, or tensile deformation, converting the "instantaneous impact force" of the impact load into the "elastic potential energy" of the diaphragm, preventing the impact force from being directly transmitted to the transmission gear shaft 15 and other subsequent components; after the impact load weakens, the diaphragm relies on its own metal elasticity to restore its original shape, releasing elastic potential energy, so that the transmission system returns to a stable operating state, thereby achieving the effect of "buffering impact". When the motor starts or its speed is adjusted, slight radial, axial, or angular relative displacements may occur between the drive shaft (motor shaft) and the driven shaft (transmission gear shaft 15) due to motor vibration, minor deformation of the base, etc. If a rigid coupling (without displacement compensation capability) is used, this displacement will cause a "rigid collision," generating a severe impact load. Diaphragm couplings, with their ability to compensate for "radial, axial, and angular displacements," adaptively adjust the relative position of the two shafts through the deformation of the diaphragm, eliminating the additional stress caused by the misalignment of the two shafts and avoiding the generation of rigid impacts. The diaphragm groups of diaphragm couplings usually adopt a multi-set symmetrical distribution design (such as 2-4 sets of diaphragms evenly arranged along the circumference). When an impact load is applied, the load will be evenly distributed and transmitted through multiple sets of diaphragms, avoiding excessive stress on a single part. At the same time, the superimposed structure of multiple thin metal diaphragms can improve the overall impact toughness (compared to a single-layer thick diaphragm, a multi-layer structure is more likely to undergo uniform deformation and is less likely to break due to excessive local stress), further enhancing the absorption and bearing capacity of impact loads.

[0032] Transmission gear shaft 15 and transmission gear 14: Transmission gear shaft 15 is installed in gearbox housing 3 via deep groove ball bearings to ensure flexible rotation; the tooth profile of transmission gear 14 matches that of loading gear 12, and the transmission ratio is designed according to the test speed requirements, with multiple gear mounting positions reserved: different tooth numbers of transmission gear 14 can be reserved on gearbox housing 3 or transmission gear shaft 15. When the test speed requirements of experimental bearing 25 change, the corresponding tooth number of transmission gear 14 can be replaced without overall modification of the drive assembly; Combined with motor frequency conversion adjustment to complete the range: If a single transmission ratio cannot cover all test speed requirements, the range can be expanded by combining "fixed transmission ratio + motor frequency conversion speed regulation" (e.g., with a fixed transmission ratio of 1.5, when the motor speed is adjusted to 2400-3000 r / min, the loading gear speed can cover 1600-2000 r / min), to meet the speed test requirements of bearings of different specifications and ensure that loading gear 12 can reach the target speed; Drive shaft flange 13: Connected to the end of drive gear shaft 15 by bolts, used to seal the end opening of gearbox housing 3, and to provide an installation reference for drive shaft oil seal 21.

[0033] Drive shaft oil seal 21: Installed between drive shaft flange 13 and drive gear shaft 15, the sealing lip is in close contact with the journal to prevent lubricating oil leakage in the gearbox, while blocking external dust and impurities from entering, ensuring the cleanliness of the transmission system.

[0034] (III) Loading Components: Load Application and Detection Unit 20T Electric Cylinder 2: The servo electric cylinder FESTOEGC-HD-220-BS-25P is selected, with a rated thrust of 20T, a stroke of 50-100mm, and a positioning accuracy of ±0.01mm. It can achieve precise application and adjustment of radial load through ball screw transmission. The cylinder body is fixed on the gearbox housing 3 by the bracket, and the piston rod end is connected to the pressure head of the 0-15T pressure sensor to transmit the load to the experimental bearing 25.

[0035] 5T Electric Cylinder 5: The Xiamen Xiaolang XL100-5T small servo electric cylinder is selected, with a rated thrust of 5T, a stroke of 30-50mm, and a positioning accuracy of ±0.01mm. It is fixed to the gearbox housing 3 through the 5T electric cylinder mounting support frame 10. The end of the electric cylinder piston rod is connected to the cylindrical force sensor Spartacus SBT752-5T sensor to apply a radial load to the loading gear 12 or the experimental bearing 25.

[0036] The resultant force formed by the simultaneous application of radial loads in different directions by two electric cylinders to the experimental bearing was used to conduct experimental analysis on the sliding bearing 25.

[0037] 0-15T pressure sensor 23: A column-type tension / compression sensor (Shiquan HT-050-15T) is selected, with a range of 0-15T and an accuracy of 0.1%FS. It is installed between the piston rod of the 20T electric cylinder 2 and the pressure head of the 0-15T pressure sensor 22 to detect the axial load in real time and transmit the data to the control system to realize closed-loop control of the load and prevent overload.

[0038] 0-15T pressure sensor head 22: used to transmit the radial load of 20T electric cylinder 2, and at the same time protect the contact surface between 0-15T pressure sensor 23 and experimental bearing 25 to avoid local stress concentration that could damage the component.

[0039] Limiting rod: Installed in the slot at the head of the oil supply pin, when the test bearing shifts or rubs, the limiting rod transmits force to the PCBPiezotronics1381-01A force sensor. The shift or abnormal friction of the test bearing 25 will generate a radial thrust (or lateral pressure) on the oil supply pin. Since the limiting rod is fixed in the slot at the head of the oil supply pin, when the oil supply pin moves, it will drive the limiting rod to rotate together. The power is transmitted to the sensor to monitor the abnormal state. When the load reaches a certain coefficient (600N), the equipment is stopped immediately (the servo control system of the 110KW motor is cut off, the 20T electric cylinder 2 and the 5T electric cylinder 5 are controlled to quickly retract the electric cylinder piston rod, and the radial load on the test bearing 25 is stopped to avoid the continuous action of abnormal load and damage to the components), thus improving the safety of the equipment.

[0040] Lubricating oil supply system: Lubrication and cooling unit Oil supply path: The external lubrication station is connected to the first oil supply shaft flange 7 through an oil pipe. The lubricating oil enters the axial main oil passage of the oil supply pin 16 through the flange oil passage, and then flows through the radial oil hole to the tooth surface of the loading gear 12, the sliding contact surface of the test bearing 25 and the rolling element of the loading bearing 18, so as to realize the lubrication and cooling of key components (the lubricating oil absorbs the heat of the component surface through heat conduction, so that the component temperature is reduced. After absorbing the heat, the lubricating oil will flow away from the heat-generating area (part of it is thrown off the tooth surface with the rotation of the gear, and part of it flows back to the oil station along the gap between the components), carrying the heat out of the test machine and completing the "heat absorption-heat dissipation" cooling cycle).

[0041] (v) Status monitoring system: real-time monitoring (window observation) and security unit Core controller: An industrial-grade PLC (Siemens CPU1214CG2) is selected, with a data processing rate of ≥100ms / time, to ensure the timeliness of load adjustment and avoid accuracy deviation caused by lag; Interface module: Equipped with analog input interface (to receive sensor signals), digital / pulse output interface (to connect to electric cylinder servo driver), and reserved communication interface (such as RS485, Ethernet) for easy linkage with other systems; Anti-interference design: Shielded wires are used for critical circuits, and electromagnetic filters are added at the hardware level to reduce the impact of electromagnetic noise generated by motors and electric cylinders in the testing machine on signal transmission and ensure the accuracy of sensor data.

[0042] Software Functions: Coverage Test Management and Fault Handling Parameter preset and storage: Operators can input "target load, loading rate, load holding time" (e.g., set it to take 15 seconds to increase from 0 to 8T and hold for 30 minutes to test friction characteristics), and the system will automatically execute according to the preset process; at the same time, it will automatically record the load data, timestamps, and equipment status throughout the test, which can be exported to Excel / PDF format for easy subsequent analysis of sliding bearing performance; Fault diagnosis: With a built-in fault database, if problems such as "sensor signal loss, load adjustment error, or electric cylinder unresponsiveness" occur, the system can locate the fault point (such as a pop-up message "0-15T pressure sensor communication abnormality") and provide troubleshooting suggestions (such as checking sensor wiring or restarting the servo driver), reducing maintenance difficulty.

[0043] System Integration: Collaborating with other components to build a secure network The control system does not operate independently; it needs to be integrated with other core components of the testing machine to achieve comprehensive control. Linked with 5T electric cylinder 5 and 0-5T pressure sensor 9: When the 20T electric cylinder applies axial load, the control system synchronously receives radial load data from 0-5T pressure sensor 9, coordinates the load application logic of the two electric cylinders, and ensures that the composite load borne by the experimental bearing meets the test requirements. Linked with limit rod and cylindrical force sensor: If the experimental bearing offset triggers the limit rod to transmit force to the cylindrical force sensor, the sensor signal is transmitted to the control system, and the system will simultaneously cut off the electric cylinder load output to avoid damage to the equipment caused by the superposition of "radial abnormal force + axial load"; Linked with manual monitoring via the nylon observation window 6: When operators discover abnormal gear meshing or insufficient lubrication through the observation window, they can manually trigger the "pause loading" or "emergency unloading" commands on the control interface. The control system will respond immediately to ensure test safety.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A testing device for detecting the performance of a sliding bearing under axial tilting conditions, characterized in that: include: The bearing test assembly includes a base (4), a gearbox housing (3), a first oil supply shaft flange (7), a second oil supply shaft flange (8), an oil supply pin (16), a loading gear (12), a loading bearing seat (17), a loading bearing (18), a thrust plate (19), a flange sleeve (20), and a test bearing (25). The oil supply pin (16) is mounted on the loading bearing seat (17), the loading gear (12) is engaged with the oil supply pin (16), and the thrust plate (19) is connected to the flange sleeve (20) and used for axial positioning. The drive assembly includes a 110KW motor (1), a diaphragm coupling (11), a transmission gear shaft (15), a transmission gear (14), a transmission shaft flange (13), and a transmission shaft oil seal (21). The 110KW motor (1) drives the transmission gear shaft (15) through the diaphragm coupling (11), and the transmission gear (14) meshes with the loading gear (12). The loading components include a 20T electric cylinder (2), a 5T electric cylinder (5), a 0-15T pressure sensor (23), and a 0-5T pressure sensor (9). The 20T electric cylinder (2) and the 5T electric cylinder (5) apply radial loads in different directions, and the 0-15T pressure sensor (23) and the 0-5T pressure sensor (9) are used to detect the magnitude of the loads in different directions.

2. The test equipment for detecting the performance of sliding bearings under axial tilting conditions according to claim 1, characterized in that: It also includes a lubricating oil supply system. The first oil supply shaft flange (7) and the second oil supply shaft flange (8) are connected to the oil supply pin (16). The lubricating oil enters the oil supply pin (16) through the first oil supply shaft flange (7) and the second oil supply shaft flange (8) and is delivered to the loading gear (12) and the experimental bearing (25) through the radial oil hole.

3. The test equipment for detecting the performance of sliding bearings under axial tilting conditions according to claim 1, characterized in that: The loading assembly also includes a 0-15T pressure sensor head (22) and a 5T electric cylinder mounting support frame (10), wherein the 5T electric cylinder (5) is fixed to the gearbox housing (3) by the support frame (10).

4. The test equipment for detecting the performance of sliding bearings under axial tilting conditions according to claim 1, characterized in that: In the drive assembly, the transmission gear shaft (15) is mounted in the gearbox housing (3) via bearings, and the transmission shaft oil seal (21) is provided between the transmission shaft flange (13) and the gearbox housing (3) to prevent lubricating oil leakage.

5. The test equipment for detecting the performance of sliding bearings under axial tilting conditions according to claim 1, characterized in that: An adjusting shim is provided between the thrust plate (19) and the flange (20) to adjust the axial clearance of the experimental bearing (25).

6. The test equipment for detecting the performance of sliding bearings under axial tilting conditions according to claim 1, characterized in that: The gearbox housing (3) is provided with a nylon observation window (6) for observing the meshing and lubrication status of the loading gear (12) and the experimental bearing (25).

7. The test equipment for detecting the performance of sliding bearings under axial tilting conditions according to claim 1, characterized in that: The motor (1) is mounted on the base (4) via a motor pad (24), and the coaxiality of the motor and the transmission shaft can be adjusted.

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