Device for detecting wear resistance of lubricating oil for electric automobile

Abstract

The invention relates to the field of wear resistance detection, in particular to a lubricating oil wear resistance detection device for an electric automobile, which comprises a detection component, a four-ball wear testing machine, a processing area arranged on the four-ball wear testing machine, a main shaft arranged on the four-ball wear testing machine and an upper ball seat arranged on the main shaft, the oil box is arranged on the four-ball abrasion testing machine; the two arc-shaped plates are arranged on the rear side of the main shaft; the noise reduction part comprises a power assembly arranged on the main shaft, a guide assembly arranged on the power assembly, a lifting assembly arranged on the power assembly and a transmission assembly arranged on the lifting assembly; the anti-abrasion part comprises an anti-loosening assembly arranged on the arc-shaped plate and a guide assembly arranged on the anti-loosening assembly; according to the device, protection can be automatically formed when the four steel balls are rapidly rubbed, noise transmission is blocked, noise reduction is achieved, and the health of workers is protected.

Description

Technical Field

[0001] The invention relates to the field of wear resistance performance detection, in particular to a wear resistance performance detection device for lubricating oil used in electric vehicles. Background Art

[0002] In electric vehicles, lubricating oil is needed in gearboxes, connectors, shock absorption systems, cooling systems, etc. In order to ensure the performance of each component, the lubricating oil needs to be tested. Common tests include wear resistance, aging resistance, high temperature and high shear, etc. Wear resistance is a basic indicator that needs to be tested. The common testing device is a four-ball wear tester.

[0003] During use, the steel balls are fixed in the upper ball seat and oil box of the four-ball wear tester respectively, and the sample is poured into the oil box so that the sample covers the steel balls and reaches the joint between the pressure ring and the nut. Then the motor is turned on to allow the steel balls to rub against each other. Finally, the wear degree of the steel balls is observed under a microscope to measure the wear resistance. In this method, due to the rapid friction between the four steel balls and the open state of the periphery for the convenience of placing the ball seat, oil box, etc., the noise is relatively large, which will affect the health of the test personnel over time (mainly causing damage to the eardrum). Summary of the invention

[0004] In view of the above or existing problems in the prior art, when the four-ball wear tester is tested, the four steel balls rub against each other quickly, and in order to facilitate the insertion of the ball seat, oil box, etc., the periphery is kept open, resulting in high noise and affecting the health of the tester, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: including a detection component, including a four-ball wear tester, a processing area arranged on the four-ball wear tester, a main shaft arranged on the four-ball wear tester, an upper ball seat arranged on the main shaft, an oil box arranged on the four-ball wear tester, and two arc plates arranged on the rear side of the main shaft; a noise reduction component, including a power assembly arranged on the main shaft, a guide assembly arranged on the power assembly, a lifting assembly arranged on the power assembly, and a transmission assembly arranged on the lifting assembly; an anti-wear component, including an anti-loosening assembly arranged on the arc plate, and a guide assembly arranged on the anti-loosening assembly; a filling component, including a pump air assembly arranged on the power assembly, and a sealing assembly arranged on the pump air assembly.

[0006] As a preferred solution of the lubricating oil wear resistance detection device for electric vehicles of the present invention, the power assembly includes a mounting ring fixedly connected to the top of the processing area, the mounting ring is provided with a mounting groove, the main shaft passes through the mounting ring, a rigid rope is fixedly connected to the side wall of the main shaft, a transmission ball is fixedly connected to the rigid rope, a lifting ring is provided in the mounting ring, and the lifting ring is provided with a strip opening whose width is smaller than the diameter of the transmission ball.

[0007] As a preferred solution of the wear resistance testing device of lubricating oil for electric vehicles of the present invention, the guide assembly includes a guide bar fixedly connected to the side wall of the main shaft, and the lifting ring is provided with a guide opening matched with the guide bar.

[0008] As a preferred solution of the lubricating oil wear resistance testing device for electric vehicles of the present invention, the lifting assembly includes an arc-shaped mounting seat fixedly connected to the bottom of the mounting ring, the arc-shaped mounting seat is provided with an open groove penetrating the mounting ring, an L-shaped plate is slidably connected in the open groove, the L-shaped plate is elastically connected to the inner wall of the open groove through a first spring, and a plurality of balls are rotatably connected to the lower side wall of the L-shaped plate.

[0009] As a preferred solution of the wear resistance testing device of lubricating oil for electric vehicles of the present invention, the transmission assembly includes a receiving groove arranged on the arc-shaped plate, the upper and lower ends of the receiving groove both penetrate the arc-shaped mounting seat, the bottom of the mounting ring is rotatably connected to a rotating shaft, a connecting strip is fixedly connected to the rotating shaft, the connecting strip is fixedly connected to the arc-shaped plate, a mounting port is provided on the side wall of the open groove, a guide rod penetrating the mounting port is fixedly connected to the L-shaped plate, and an arc-shaped groove cooperating with the guide rod is provided on the side wall of the rotating shaft.

[0010] As a preferred solution of the lubricating oil wear resistance testing device for electric vehicles of the present invention, the upper side wall of the arc plate fits with the lower side wall of the mounting ring, and the diameter of the circle formed by the two arc plates is smaller than the diameter of the mounting ring.

[0011] As a preferred solution of the lubricating oil wear resistance detection device for electric vehicles of the present invention, the anti-loosening component includes two support grooves arranged on two arc-shaped plates, a first clamping block is fixedly connected in the support groove at the left end, and a slider is slidably connected in the support groove at the right end, the slider is elastically connected to the inner wall of the support groove through a second spring, a second clamping block cooperating with the first clamping block is fixedly connected to the slider, a through opening is provided on the side wall of the support groove, a lever fixed to the slider is slidably connected in the through opening, and a first arc edge is provided on both the first clamping block and the second clamping block.

[0012] As a preferred solution of the wear resistance testing device of lubricating oil for electric vehicles of the present invention, the guide assembly includes a second arc edge arranged on the first clamping block, and a vertical edge is arranged on the second arc edge.

[0013] As a preferred solution of the wear resistance testing device of lubricating oil for electric vehicles of the present invention, the pump air assembly includes an elastic airbag fixedly connected to an L-shaped plate, the upper end of the elastic airbag is abutted against the top of the processing area, two air guide tubes are sealed and connected on the elastic airbag, and a ferrule matching the air guide tube is provided on the L-shaped plate.

[0014] As a preferred solution of the wear resistance testing device of lubricating oil for electric vehicles of the present invention, the closing component includes a strip airbag fixedly connected to the side wall of the arc plate, a groove cooperating with the strip airbag is provided on the inner wall of the accommodating groove, and a guide port for the air guide pipe to pass through is provided in the arc-shaped mounting seat, and the guide port is offset from the mounting port.

[0015] The beneficial effects of the wear resistance performance detection device of lubricating oil for electric vehicles of the present invention are as follows: by arranging the detection component and the noise reduction component, when the steel balls rub against each other, in the processing area, the inner bottom of the processing area, the arc-shaped mounting seat and the two arc-shaped plates are combined into a closed area, so as to block the propagation of noise and achieve the effect of noise reduction, thereby protecting the health of workers, and when the steel balls stop rubbing, the two arc-shaped plates are automatically opened, which will not affect the placement of the ball seat, the oil box, etc., and is easy to use. By arranging the anti-wear component and the filling component, the two arc-shaped plates can be prevented from loosening and the noise reduction effect is guaranteed. At the same time, the gap can be filled by the expansion of the strip airbag to further achieve the noise reduction effect, thereby solving the problem that when the four-ball wear tester is tested, the four steel balls rub quickly with each other, and in order to facilitate the placement of the ball seat, the oil box, etc., the outer periphery is kept open, thereby causing large noise and affecting the health of the test personnel, and achieving the effect of achieving noise reduction in the processing area when the steel balls rub and protecting the health of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the external structure of a lubricating oil wear resistance testing device for electric vehicles.

[0018] Figure 2 This is a schematic diagram of the external structure of the power component of the lubricating oil wear resistance performance testing device for electric vehicles.

[0019] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of .

[0020] Figure 4 This is an exploded view of the noise reduction components of the lubricant wear resistance testing device for electric vehicles.

[0021] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at B.

[0022] Figure 6 This is a cross-sectional view of the lifting assembly of a lubricating oil wear resistance testing device for electric vehicles.

[0023] Figure 7 This is an exploded view of the transmission components of the lubricant wear resistance testing device for electric vehicles.

[0024] Figure 8 This is a cross-sectional view of the closed components of a lubricant wear resistance testing device for electric vehicles.

[0025] Fig. 9 This is a schematic diagram of the cooperation between the first clamping block and the second clamping block of a lubricating oil wear resistance testing device for electric vehicles.

[0026] In the figure: 100, detection component; 101, four-ball wear tester; 102, processing area; 103, spindle; 104, upper ball seat; 105, oil box; 106, arc plate; 200, noise reduction component; 201, power assembly; 201a, mounting ring; 201b, mounting groove; 201c, rigid rope; 201d, transmission ball; 201e, lifting ring; 201f, strip mouth; 202, guide assembly; 202a, guide strip; 202b, guide mouth; 203, lifting assembly; 203a, arc mounting seat; 203b, opening groove; 203c, L-shaped plate; 203d, first spring; 203e, ball; 204, transmission assembly; 204a, receiving groove; 204b, Rotating shaft; 204c, connecting strip; 204d, mounting port; 204e, guide rod; 204f, arc groove; 300, anti-wear component; 301, anti-loosening component; 301a, supporting groove; 301b, first clamping block; 301c, sliding block; 301d, second spring; 301e, second clamping block; 301f, through-hole; 301g, lever; 301h, first arc edge; 302, guiding component; 302a, second arc edge; 302b, vertical edge; 400, filling component; 401, pump air component; 401a, elastic air bag; 401b, air guide tube; 401c, ferrule; 402, closing component; 402a, strip air bag; 402b, groove; 402c, guiding port. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] Example 1, reference Figures 1 to 9 , which is the first embodiment of the present invention, and provides a lubricant wear resistance testing device for electric vehicles, which can achieve the effect of reducing noise in the processing area 102 and blocking noise propagation, and includes a four-ball wear tester 101, a processing area 102 arranged on the four-ball wear tester 101, a spindle 103 arranged on the four-ball wear tester 101, an upper ball seat 104 arranged on the spindle 103, an oil box 105 arranged on the four-ball wear tester 101, and two arc plates 106 arranged on the rear side of the spindle 103; a noise reduction component 200, It includes a power assembly 201 arranged on the main shaft 103, a guide assembly 202 arranged on the power assembly 201, a lifting assembly 203 arranged on the power assembly 201, and a transmission assembly 204 arranged on the lifting assembly 203; the anti-wear component 300 includes an anti-loosening component 301 arranged on the arc plate 106, and a guide component 302 arranged on the anti-loosening component 301; the filling component 400 includes a pump air component 401 arranged on the power assembly 201, and a sealing component 402 arranged on the pump air component 401.

[0029] Specifically, a motor is arranged on the four-ball wear tester 101, and a protective shell with a sound insulation board is arranged on the outside of the motor, so that when the motor rotates, noise can be well reduced. At the same time, the output shaft of the motor is connected to the main shaft 103 to drive the main shaft 103 to rotate. A joint is also arranged on the main shaft 103 to fix it with the upper ball seat 104. A support is also arranged at the bottom of the oil box 105. The setting of the support places the oil box 105 between the upper ball seat 104 and the support. An area for placing weights is also provided on the support. This is the prior art and will not be elaborated here.

[0030] Furthermore, the power assembly 201 includes a mounting ring 201a fixedly connected to the top of the processing area 102, the mounting ring 201a is provided with a mounting groove 201b, the main shaft 103 passes through the mounting ring 201a, a rigid rope 201c is fixedly connected to the side wall of the main shaft 103, a transmission ball 201d is fixedly connected to the rigid rope 201c, a lifting ring 201e is provided in the mounting ring 201a, and the lifting ring 201e is provided with a strip opening 201f whose width is smaller than the diameter of the transmission ball 201d; the guide assembly 202 includes a guide strip 202a fixedly connected to the side wall of the main shaft 103, and the lifting ring 201e is provided with a guide opening 202b cooperating with the guide strip 202a.

[0031] Among them, the inner walls of the mounting ring 201a and the arc plate 106 are both provided with sound insulation cotton, which can achieve the effect of noise reduction. The lifting ring 201e is provided with a strip opening 201f with a width smaller than the diameter of the transmission ball 201d, which can prevent the transmission ball 201d from moving to the upper side of the strip opening 201f. The guide strip 202a cooperates with the guide opening 202b, so that the lifting ring 201e can also be lifted and lowered during the rotation process.

[0032] Preferably, the lifting assembly 203 includes an arc-shaped mounting seat 203a fixedly connected to the bottom of the mounting ring 201a, and an open groove 203b penetrating the mounting ring 201a is provided on the arc-shaped mounting seat 203a, and an L-shaped plate 203c is slidably connected in the open groove 203b, and the L-shaped plate 203c is elastically connected to the inner wall of the open groove 203b through a first spring 203d, and a plurality of balls 203e are rotatably connected to the lower side wall of the L-shaped plate 203c; the transmission assembly 204 includes a receiving groove 204a provided on the arc plate 106, and the upper and lower ends of the receiving groove 204a both penetrate the arc-shaped mounting seat 203a The bottom of the mounting ring 201a is rotatably connected to a rotating shaft 204b, and a connecting strip 204c is fixedly connected to the rotating shaft 204b. The connecting strip 204c is fixedly connected to the arc plate 106. A mounting opening 204d is provided on the side wall of the opening groove 203b. A guide rod 204e that passes through the mounting opening 204d is fixedly connected to the L-shaped plate 203c, and an arc groove 204f that cooperates with the guide rod 204e is provided on the side wall of the rotating shaft 204b; the upper side wall of the arc plate 106 is in contact with the lower side wall of the mounting ring 201a, and the diameter of the circle formed by the two arc plates 106 in contact is smaller than the diameter of the mounting ring 201a.

[0033] It should be noted that the L-shaped plate 203c extends into the mounting ring 201a, and the lower side wall of the horizontal side of the L-shaped plate 203c abuts against the upper side wall of the lifting ring 201e. The provision of multiple balls 203e prevents significant wear between the L-shaped plate 203c and the lifting plate. The guide rod 204e cooperates with the arc groove 204f to enable the rotating shaft 204b to rotate, thereby rotating the connecting block, driving the arc plate 106 to rotate, and allowing the two arc plates 106 to rotate and fit together.

[0034] When in use, in the initial state, the two arc plates 106 are in a separated state, and it is convenient to put the oil box 105 and the upper ball seat 104 into the processing area 102. After they are placed, the motor of the four-ball wear tester 101 is turned on, and the rotation of the motor drives the main shaft 103 to rotate, so that the rigid rope 201c rotates around the rotating shaft 204b. During the movement, under the action of centrifugal force, the rigid rope 201c slowly changes from tilt to horizontal, and at this time drives the transmission ball 201d to move upward, thereby causing the lifting ring 201e to move upward. Due to the setting of the guide strip 202a and the guide port 202b, during the rotation of the main shaft 103, the lifting ring 201e rotates synchronously with the main shaft 103, so that there will be no relative sliding between the transmission ball 201d and the lifting ring 201e, avoiding the friction between the transmission ball 201d and the lifting ring 201e to generate noise, while reducing the friction between the two. The wear between the transmission ball 201d and the lifting ring 201e is increased, and the service life of the transmission ball 201d and the lifting ring 201e is increased. When the lifting ring 201e moves upward, the L-shaped plate 203c is driven to move upward, and the first spring 203d is extended, so that the guide rod 204e moves upward and cooperates with the arc groove 204f, driving the rotating shaft 204b to rotate, so that the connecting bar 204c rotates, thereby driving the two arc plates 106 to move closer. When the two arc plates 106 are against each other, the bottom of the mounting ring 201a, the inner bottom of the processing area 102, the arc mounting seat 203a and the two arc plates 106 are combined into a closed area, so as to block the noise of the processing area 102, reduce the spread of noise, and achieve noise reduction. When the spindle 103 stops rotating, the L-shaped plate 203c is automatically reset under the action of the first spring 203d, and the two arc plates 106 are opened through transmission. At this time, it is convenient to take out the oil box 105 for observation.

[0035] In summary, by setting the noise reduction component 200, when the main shaft 103 rotates, the two arc plates 106 are deflected through transmission, so that the bottom of the mounting ring 201a, the inner bottom of the processing area 102, the arc mounting seat 203a and the two arc plates 106 are combined into a closed area, thereby blocking the processing area 102, reducing the propagation of noise, and achieving the noise reduction effect. The power comes from the rotation of the main shaft 103, and no external power is required, which is easy to use.

[0036] Example 2, reference Figures 1 to 8, which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides an anti-wear component 300 of a lubricant wear resistance performance testing device for electric vehicles, which solves the problem of how to avoid constant friction between the ball 203e and the lifting ring 201e, and prevent the two arc plates 106 from automatically separating. It includes an anti-loosening component 301, including two support grooves 301a arranged on the two arc plates 106, a first clamping block 301b is fixedly connected in the left end support groove 301a, and a slider 301c is slidably connected in the right end support groove 301a, and the slider 301c is elastically connected to the inner wall of the supporting groove 301a through the second spring 301d, and the slider 301c is fixedly connected with the second clamping block 301e cooperating with the first clamping block 301b. A through hole 301f is provided on the side wall of the supporting groove 301a, and a lever 301g fixed to the slider 301c is slidably connected in the through hole 301f. The first clamping block 301b and the second clamping block 301e are both provided with a first arc edge 301h, and the guide assembly 302 includes a second arc edge 302a arranged on the first clamping block 301b, and the second arc edge 302a is provided with a vertical edge 302b.

[0037] Specifically, the first arc edge 301h is provided to prevent the first block 301b and the second block 301e from getting stuck when they abut against each other, and the lever 301g is provided to facilitate pushing the slider 301c from the outside to move the first block 301b and the second block 301e apart.

[0038] When in use, during the process of the two arc-shaped plates 106 abutting against each other, the second clamping block 301e first cooperates with the first arc edge 301h of the first clamping block 301b. At this time, due to the abutment between the first clamping block 301b and the second clamping block 301e, the second clamping block 301e moves upward, so that the slider 301c moves upward, compressing the second spring 301d. When the right side wall of the second clamping block 301e is directly opposite to the second arc edge 302a (such as Fig. 9As shown in the figure, the lifting ring 201e just moves to the limit position. Different from the embodiment 1, a gap is left between the two arc plates 106 at this time. Then, under the action of the second spring 301d, the slider 301c moves downward. At this time, the second block 301e cooperates with the second arc edge 302a on the first block 301b, so that the second block 301e can continue to move a short distance to the left, so that the rotating shaft 204b will also rotate a small arc, so that the guide rod 204e continues to rise, and the L-shaped plate 203c moves a short distance upward, and the ball 203e is separated from the lifting ring 201e. Therefore, when the lifting ring 201e continues to rotate, it will not continue to rub against the ball 203e, thereby avoiding noise and increasing the service life of the ball 203e. When the second clamping block 301e moves to the vertical side 302b, the right side wall of the second clamping block 301e abuts against the vertical side 302b of the first clamping block 301b to prevent the first clamping block 301b and the second clamping block 301e from loosening. At this time, the two arc plates 106 are tightly attached to each other and cannot be separated automatically. At this time, even if the rotation speed of the main shaft 103 changes, the arc plates 106 will not be separated automatically, so that the L-shaped plate 203c cannot be reset under the action of the first spring 203d, and the noise reduction effect is maintained. When the oil box 105 needs to be taken out, it is only necessary to move the lever 301g to make the second clamping block 301e move to the upper side of the first clamping block 301b, and then under the action of the first spring 203d, the two arc plates 106 can be separated by transmission.

[0039] In summary, by setting the anti-wear component 300, after the two arc plates 106 are fitted together, the two arc plates 106 can be prevented from automatically separating. At the same time, when the two arc plates 106 are fitted together, the L-shaped plate 203c can be driven to move upward, so that the ball 203e is separated from the lifting ring 201e, thereby avoiding wear between the two, and avoiding noise caused by wear between the lifting ring 201e and the ball 203e.

[0040] Example 3, reference Figures 1 to 8, which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a filling component 400 of a lubricant wear resistance testing device for electric vehicles, which solves the problem of how to fill the gap between the arc plate 106 and the arc mounting seat 203a. It includes a pump air component 401, including an elastic airbag 401a fixedly connected to the L-shaped plate 203c, the upper end of the elastic airbag 401a is against the top of the processing area 102, and the elastic airbag 401a is Two air ducts 401b are provided for sealing connection, a ferrule 401c cooperating with the air duct 401b is provided on the L-shaped plate 203c, the closing assembly 402 comprises a strip air bag 402a fixedly connected to the side wall of the arc plate 106, a groove 402b cooperating with the strip air bag 402a is provided on the inner wall of the accommodating groove 204a, a guide port 402c for the air duct 401b to pass through is provided in the arc-shaped mounting seat 203a, and the guide port 402c is offset from the mounting port 204d.

[0041] Specifically, the setting of the groove 402b can accommodate the strip airbag 402a, so that the sealing effect is better. The elasticity of the second spring 301d is greater than the pressure of the elastic airbag 401a, thereby ensuring that the second block 301e can cooperate with the second arc edge 302a.

[0042] When in use, when the L-shaped plate 203c moves upward, it can squeeze the elastic airbag 401a, and pump the gas in the elastic airbag 401a into the strip airbag 402a through the air guide tube 401b, filling the gap between the arc plate 106 and the arc mounting seat 203a. The setting of the groove 402b here can prevent the strip airbag 402a from getting stuck. At the same time, the setting of the groove 402b allows the strip airbag 402a to sink into the groove 402b, resulting in a better sealing effect.

[0043] In summary, by setting up the filling component 400, during the movement of the L-shaped plate 203c, the strip airbag 402a can be supplied with air by squeezing the elastic airbag 401a. The strip airbag 402a expands to fill the gap between the arc plate 106 and the arc mounting seat 203a, thereby achieving better sealing effect and better noise reduction effect.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for testing the wear resistance of lubricating oil for electric vehicles, characterized in that: include, The detection component (100) comprises a four-ball wear tester (101), a processing area (102) arranged on the four-ball wear tester (101), a main shaft (103) arranged on the four-ball wear tester (101), an upper ball seat (104) arranged on the main shaft (103), an oil box (105) arranged on the four-ball wear tester (101), and two arc-shaped plates (106) arranged on the rear side of the main shaft (103); The noise reduction component (200) comprises a power assembly (201) arranged on the main shaft (103), a guide assembly (202) arranged on the power assembly (201), a lifting assembly (203) arranged on the power assembly (201), and a transmission assembly (204) arranged on the lifting assembly (203); An anti-wear component (300) comprising an anti-loosening component (301) arranged on the arc-shaped plate (106), and a guide component (302) arranged on the anti-loosening component (301); The filling component (400) comprises a pumping component (401) arranged on the power component (201), and a sealing component (402) arranged on the pumping component (401).

2. The wear resistance testing device for lubricating oil for electric vehicles according to claim 1, characterized in that: The power assembly (201) comprises a mounting ring (201a) fixedly connected to the top of the processing area (102), the mounting ring (201a) being provided with a mounting groove (201b), the main shaft (103) passing through the mounting ring (201a), a rigid rope (201c) being fixedly connected to the side wall of the main shaft (103), a transmission ball (201d) being fixedly connected to the rigid rope (201c), a lifting ring (201e) being provided in the mounting ring (201a), and a strip-shaped opening (201f) having a width smaller than the diameter of the transmission ball (201d) being provided on the lifting ring (201e).

3. The wear resistance testing device for lubricating oil for electric vehicles according to claim 2, characterized in that: The guide assembly (202) comprises a guide strip (202a) fixedly connected to the side wall of the main shaft (103), and the lifting ring (201e) is provided with a guide opening (202b) that cooperates with the guide strip (202a).

4. The wear resistance testing device for lubricating oil for electric vehicles according to claim 3, characterized in that: The lifting assembly (203) comprises an arc-shaped mounting seat (203a) fixedly connected to the bottom of the mounting ring (201a); the arc-shaped mounting seat (203a) is provided with an open groove (203b) penetrating the mounting ring (201a); an L-shaped plate (203c) is slidably connected in the open groove (203b); the L-shaped plate (203c) is elastically connected to the inner wall of the open groove (203b) via a first spring (203d); and a plurality of balls (203e) are rotatably connected to the lower side wall of the L-shaped plate (203c).

5. The wear resistance testing device for lubricating oil for electric vehicles according to claim 4, characterized in that: The transmission assembly (204) comprises a receiving groove (204a) arranged on the arc-shaped plate (106); the upper and lower ends of the receiving groove (204a) both penetrate the arc-shaped mounting seat (203a); the bottom of the mounting ring (201a) is rotatably connected to a rotating shaft (204b); a connecting strip (204c) is fixedly connected to the rotating shaft (204b); the connecting strip (204c) is fixedly connected to the arc-shaped plate (106); a mounting opening (204d) is provided on a side wall of the open groove (203b); a guide rod (204e) penetrating the mounting opening (204d) is fixedly connected to the L-shaped plate (203c); and an arc-shaped groove (204f) cooperating with the guide rod (204e) is provided on the side wall of the rotating shaft (204b).

6. The wear resistance testing device for lubricating oil for electric vehicles according to claim 5, characterized in that: The upper side wall of the arc-shaped plate (106) fits with the lower side wall of the mounting ring (201a), and the diameter of the circle formed by the two arc-shaped plates (106) fitting together is smaller than the diameter of the mounting ring (201a).

7. The wear resistance testing device for lubricating oil for electric vehicles according to claim 6, characterized in that: The anti-loosening component (301) comprises two supporting grooves (301a) arranged on two arc-shaped plates (106); a first clamping block (301b) is fixedly connected in the left supporting groove (301a); a sliding block (301c) is slidably connected in the right supporting groove (301a); the sliding block (301c) is elastically connected to the inner wall of the supporting groove (301a) via a second spring (301d); a second clamping block (301e) matched with the first clamping block (301b) is fixedly connected to the sliding block (301c); a through hole (301f) is provided on the side wall of the supporting groove (301a); a lever (301g) fixed to the sliding block (301c) is slidably connected in the through hole (301f); and a first arc edge (301h) is provided on both the first clamping block (301b) and the second clamping block (301e).

8. The wear resistance testing device for lubricating oil for electric vehicles according to claim 7, characterized in that: The guide assembly (302) comprises a second arc edge (302a) arranged on the first clamping block (301b), and a vertical edge (302b) is provided on the second arc edge (302a).

9. The wear resistance testing device for lubricating oil for electric vehicles according to claim 7 or 8, characterized in that: The air pump assembly (401) comprises an elastic airbag (401a) fixedly connected to an L-shaped plate (203c), the upper end of the elastic airbag (401a) abuts against the top of the processing area (102), two air guide tubes (401b) are provided on the elastic airbag (401a) in sealing communication, and a ferrule (401c) matching the air guide tube (401b) is provided on the L-shaped plate (203c).

10. The wear resistance testing device for lubricating oil for electric vehicles according to claim 9, characterized in that: The closure assembly (402) comprises a strip-shaped air bag (402a) fixedly connected to the side wall of the arc-shaped plate (106); a groove (402b) cooperating with the strip-shaped air bag (402a) is provided on the inner wall of the accommodating groove (204a); a guide opening (402c) for the air guide tube (401b) to pass through is provided in the arc-shaped mounting seat (203a); the guide opening (402c) is offset from the mounting opening (204d).

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