Durability testing device for new energy automobile

Abstract

The invention discloses a durability test device for a new energy automobile, and relates to the technical field of new energy automobile testing, the durability test device comprises a base, the upper end of the base is fixedly provided with a mounting rack, and two opposite side walls of the mounting rack are provided with moving grooves; the moving plate is arranged on the inner side of the mounting frame, and a connecting frame is arranged at the lower end of the moving plate; the brake pressing mechanism is arranged at the upper end of the movable plate; the downward pressing mechanism is arranged on the mounting frame, and the downward pressing mechanism is connected with a moving plate; and the rotating cylinder is arranged on the inner side of the mounting frame and located below the moving plate, a first rotating rod fixedly connected with the rotating cylinder is arranged in the middle of the rotating cylinder in a penetrating mode, and the two ends of the first rotating rod penetrate through the two side walls of the mounting frame correspondingly. According to the invention, the durability test of the brake assembly and the suspension assembly of the new energy automobile under different road surfaces, load pressures, brake pressing forces and inertias can be realized, so that the test is more comprehensive, and the test process is efficient and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle testing, and in particular to a durability testing device for new energy vehicles. Background Art

[0002] New energy vehicles (NEVs) are those that don't rely on traditional fuels, or that use traditional fuels but are equipped with new powertrains and incorporate advanced vehicle power control and drive technologies. These vehicles feature advanced technological principles and novel structures, encompassing a variety of types, including pure electric vehicles, extended-range electric vehicles, and hybrid vehicles, with pure electric vehicles dominating the market.

[0003] Since new energy vehicles are usually equipped with batteries, and the batteries are heavy, the overall weight and inertia of new energy vehicles are large, which makes the load and pressure on the vehicle's suspension assembly and brake assembly large. Therefore, durability testing of the brake assembly and suspension assembly of new energy vehicles is particularly critical and important. Usually, when testing the brake assembly and suspension assembly, the brake assembly needs to be connected to the brake components on the suspension assembly, and then by pressing the pedal of the brake assembly, the wheels of the suspension assembly can be braked through the brake components. Now it is necessary to design a durability testing device for new energy vehicles. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a durability testing device for new energy vehicles.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A durability testing device for new energy vehicles, comprising: A base, wherein a mounting frame is fixed to the upper end of the base, and movable grooves are provided on two opposite side walls of the mounting frame; A movable plate is arranged on the inner side of the mounting frame, and a connecting frame is provided at the lower end of the movable plate; A brake pressing mechanism is provided at the upper end of the movable plate; A pressing mechanism is provided on the mounting frame, and the pressing mechanism is connected to the movable plate; The rotating drum is arranged on the inner side of the mounting frame and is located below the movable plate. A first rotating rod fixedly connected to the rotating drum is provided through the middle of the rotating drum. The two ends of the first rotating rod respectively pass through the two side walls of the mounting frame, and the first rotating rod is rotatably connected to the mounting frame. Four device grooves are provided on the side walls of the rotating drum at equal intervals along its circumference. Four road surface mechanisms, the four road surface mechanisms are respectively arranged inside four device slots; a rotating mechanism connected to the first rotating rod and the movable plate, and configured to drive the rotating drum to rotate at an angle of ninety degrees when the movable plate moves upward; A driving mechanism is provided on a side wall of the mounting frame, and is used to drive the road surface mechanism to rotate; The adjusting mechanism is arranged on the other side wall of the mounting frame, and is used to adjust the mass distribution of the road surface mechanism.

[0006] As a further improvement of the present invention, the brake pressing mechanism includes a fixed plate fixedly connected to the upper end of the movable plate, a pressure plate is rotatably connected to the side wall of the fixed plate, a third hydraulic cylinder is rotatably connected to the side wall of the fixed plate, and the telescopic end of the third hydraulic cylinder is rotatably connected to the side wall of the pressure plate.

[0007] The cam is secured to the outside of the second gear and is adapted to engage the gears of the driver and the user, and the cam is secured to the outside of the second gear and is adapted to engage the gears of the driver and the user, and the cam is secured to the outside of the second gear and is adapted to engage the user.

[0008] As a further improvement of the present invention, the rotating mechanism includes a rotating plate fixedly connected to the end portion of the first rotating rod, the side wall of the rotating plate is provided with four shift grooves at equal intervals along its circumference, the side wall of the rotating plate is provided with four positioning grooves at equal intervals along its circumference, the shift grooves and the positioning grooves are arranged at intervals, the side wall of the mounting frame is rotatably connected to the rotating shaft, the outer wall of the rotating shaft is provided with a third gear through a one-way bearing, the rotating shaft is fixedly sleeved with a turntable, the disk surface of the turntable is fixedly connected with a positioning block that cooperates with the positioning groove, the positioning block is sleeved on the outer side of the rotating shaft, the disk surface edge of the turntable is fixedly connected with a shift rod that cooperates with the shift groove, one end of the movable plate is fixedly connected to a vertical rod, the side wall of the vertical rod is provided with a rack meshing with the third gear, the end of the vertical rod away from the movable plate passes through the base, and the vertical rod is slidably connected to the base.

[0009] As a further improvement of the present invention, the driving mechanism includes a motor mounted on the side wall of the mounting frame, the output shaft of the motor is fixedly connected to a connecting shaft, the connecting shaft passes through the mounting frame, and the connecting shaft is rotatably connected to the mounting frame, and the end of the connecting shaft away from the motor is fixedly connected to a first gear that cooperates with the second gear.

[0010] As a further improvement of the present invention, the adjustment mechanism includes a fixed frame fixedly connected to the side wall of the mounting frame, a second hydraulic cylinder is fixedly installed on the inner wall of the fixed frame, the telescopic end of the second hydraulic cylinder is fixedly connected to a movable rod that cooperates with the first sliding plug cavity, the movable rod passes through the mounting frame, and the movable rod is slidably connected to the mounting frame, and a plane bearing is installed on the end of the movable rod away from the second hydraulic cylinder.

[0011] As a further improvement of the present invention, the downward pressing mechanism includes two first hydraulic cylinders installed on the upper end of the mounting frame, the telescopic ends of the two first hydraulic cylinders both pass through the mounting frame and are fixed with connecting rods, and the lower ends of the two connecting rods are fixed on the upper end of the movable plate.

[0012] As a further improvement of the present invention, the two ends of the movable plate are respectively located inside the two movable grooves, and two guide rods are vertically provided inside the movable groove. The two ends of the guide rods are respectively fixedly connected to the inner top wall and the inner bottom wall of the movable groove, and the guide rods pass through the movable plate and are slidably connected to the movable plate.

[0013] Beneficial effects of the present invention: 1. The brake assembly can be pressed by the brake pressing mechanism, and the pressing force of the brake assembly can be controlled by the brake pressing mechanism, which can simulate the durability test of the brake assembly and suspension assembly under different pressing forces.

[0014] 2. Four road surface mechanisms are set up, and through the rotation of the drum, different road surface mechanisms can be brought into contact with the suspension assembly in sequence, which can simulate the durability test of the brake assembly and suspension assembly under different road conditions.

[0015] 3. The first hydraulic cylinder drives the movable plate downward. The downward movement of the movable plate can generate different downward forces on the suspension assembly, thereby simulating the durability test of the brake assembly and suspension assembly under different load pressures.

[0016] 4. The mass distribution of the road mechanism can be adjusted through the adjustment mechanism, and then the rotational inertia of the road mechanism during rotation can be adjusted, and then the road mechanism can be adjusted to make the road mechanism more difficult to brake, thereby simulating the durability test of the vehicle's brake assembly and suspension assembly under different inertia conditions.

[0017] The present invention can realize the durability test of the brake assembly and suspension assembly of new energy vehicles under different road surfaces, load pressures, brake pressing strengths and inertias, making the test more comprehensive and the test process efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of the present invention from one side perspective; Figure 2 It is a structural schematic diagram of the present invention from another side perspective; Figure 3 It is a structural schematic diagram of the adjustment mechanism of the present invention; Figure 4 It is a structural schematic diagram of the rotating drum, the road surface mechanism, the first rotating rod, the driving mechanism, and the rotating mechanism of the present invention; Figure 5 It is a structural schematic diagram of the road roller, the second rotating rod, and the second gear of the present invention; Figure 6 It is a structural schematic diagram of the brake pressing mechanism of the present invention; Figure 7 It is a schematic structural diagram of the cross section of the road roller, the second rotating rod, the first sliding plug cavity, the sliding plug plate, the spring, the second sliding plug cavity, the connecting channel, the sliding plug rod, and the counterweight rod of the present invention.

[0019] In the figure: 1 base, 2 mounting frame, 3 first hydraulic cylinder, 4 connecting rod, 5 movable plate, 6 movable groove, 7 guide rod, 8 brake assembly, 9 fixed plate, 10 connecting frame, 11 suspension assembly, 12 vertical rod, 13 motor, 14 rack, 15 rotating drum, 16 road roller, 17 fixed frame, 18 second hydraulic cylinder, 19 movable rod, 20 plane bearing, 21 first rotating rod, 22 connecting shaft, 23 first gear, 24 second gear, 25 device groove, 26 rotating plate, 27 shifting rod, 28 positioning block, 29 third gear, 30 one-way bearing, 31 rotating shaft, 32 rotating plate, 33 shifting groove, 34 positioning groove, 35 second rotating rod, 36 third hydraulic cylinder, 37 pressure plate, 38 first slide plug cavity, 39 slide plug plate, 40 spring, 41 connecting channel, 42 second slide plug cavity, 43 slide plug rod, 44 counterweight rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-Figure 7 , a durability testing device for new energy vehicles, comprising: A base 1, a mounting frame 2 is fixed to the upper end of the base 1, and movable grooves 6 are provided on the opposite side walls of the mounting frame 2; The movable plate 5 is arranged on the inner side of the mounting frame 2. A connecting frame 10 is provided at the lower end of the movable plate 5. The two ends of the movable plate 5 are respectively located inside the two movable grooves 6. Two guide rods 7 are vertically provided inside the movable grooves 6. The two ends of the guide rods 7 are respectively fixedly connected to the inner top wall and the inner bottom wall of the movable groove 6. The guide rods 7 pass through the movable plate 5 and are slidably connected to the movable plate 5. The brake pressing mechanism is provided at the upper end of the movable plate 5; The pressing mechanism is provided on the mounting frame 2 and connected to the movable plate 5. The pressing mechanism includes two first hydraulic cylinders 3 installed on the upper end of the mounting frame 2. The telescopic ends of the two first hydraulic cylinders 3 pass through the mounting frame 2 and are fixed with connecting rods 4. The lower ends of the two connecting rods 4 are fixed to the upper end of the movable plate 5. The rotating drum 15 is disposed inside the mounting frame 2 and below the movable plate 5. A first rotating rod 21 is provided through the middle of the rotating drum 15 and is fixedly connected to the rotating drum 15. The ends of the first rotating rod 21 respectively penetrate the two side walls of the mounting frame 2, and the first rotating rod 21 is rotatably connected to the mounting frame 2. Four device grooves 25 are provided on the side walls of the rotating drum 15 at equal intervals along its circumference. Four road surface mechanisms, the four road surface mechanisms are respectively arranged inside the four device slots 25; The rotating mechanism is connected to the first rotating rod 21 and the movable plate 5, and is used to drive the rotating drum 15 to rotate at an angle of ninety degrees when the movable plate 5 moves upward; A driving mechanism is provided on a side wall of the mounting frame 2, and is used to drive the road surface mechanism to rotate; The adjustment mechanism is provided on the other side wall of the mounting frame 2 and is used to adjust the mass distribution of the road surface mechanism.

[0022] Reference Figure 6 The brake pressing mechanism includes a fixed plate 9 fixedly connected to the upper end of the movable plate 5, and a pressure plate 37 is rotatably connected to the side wall of the fixed plate 9. A third hydraulic cylinder 36 is rotatably connected to the side wall of the fixed plate 9, and the telescopic end of the third hydraulic cylinder 36 is rotatably connected to the side wall of the pressure plate 37.

[0023] Reference Figure 5 、 Figure 7The pavement mechanism includes a pavement roller 16 arranged inside the device groove 25. The surface of the roadside roller 16 is provided with different materials or textures to simulate different pavement conditions, such as cement, asphalt, gravel and other pavement conditions. A second rotating rod 35 fixedly connected to the pavement roller 16 is provided inside the pavement roller 16. Both ends of the second rotating rod 35 pass through the inner wall of the device groove 25 and extend to the outside of the rotating drum 15, and the second rotating rod 35 is rotatably connected to the rotating drum 15. One end of the second rotating rod 35 is provided with a first sliding plug cavity 38, and the other end of the second rotating rod 35 is fixedly sleeved with the second gear 24. A second sliding plug cavity 42 is provided in the middle of the side wall of the second rotating rod 35. Two sliding plug rods 43 arranged opposite to each other are slidably installed inside the second sliding plug cavity 42. The end of the sliding plug rod 43 away from the second rotating rod 35 is fixedly connected to the counterweight rod 44. When the pavement roller 16 and the counterweight rod 44 are regarded as a whole, the sliding plug rod 4 When the counterweight rod 44 is driven to move toward the edge of the road roller 16, the mass distribution of the aforementioned whole is made closer to the outer edge, thereby increasing the rotational inertia of the road mechanism, making it more difficult to brake the road mechanism, thereby simulating the durability test of the brake assembly 8 and the suspension assembly 11 of the vehicle under conditions of greater inertia. A connecting passage 41 is provided inside the second rotating rod 35. The first slide cavity 38 and the second slide cavity 42 are connected through the connecting passage 41. The first slide cavity 38, the second slide cavity 42, and the connecting passage 41 are all filled with hydraulic oil. A slide plate 39 is slidably mounted inside the first slide cavity 38. A spring 40 is provided inside the first slide cavity 38. One end of the spring 40 is connected to the inner wall of the first slide cavity 38, and the other end of the spring 40 is connected to the slide plate 39. The provision of the spring 40 can maintain the stability of the slide plate 39 inside the first slide cavity 38.

[0024] Reference Figure 4The rotating mechanism includes a rotating plate 32 fixedly connected to the end of the first rotating rod 21. Four shifting grooves 33 are provided on the side wall of the rotating plate 32 at equal intervals along its circumference. Four positioning grooves 34 are provided on the side wall of the rotating plate 32 at equal intervals along its circumference. The shifting grooves 33 and the positioning grooves 34 are arranged at intervals. The side wall of the mounting frame 2 is rotatably connected to the rotating shaft 31. The outer wall of the rotating shaft 31 is equipped with a third gear 29 through a one-way bearing 30. When the vertical rod 12 drives the rack 14 to move downward, the rack 14 engages with the third gear 29, which will drive the third gear 29 to rotate. However, due to the one-way transmission effect of the one-way bearing 30, at this time, the third gear 29 will not drive the rotating shaft 31 to rotate. When the rack 14 moves upward, the rotating shaft 31 can be driven to rotate through the one-way bearing 30. A rotating disk 26 is fixedly sleeved on the rotating shaft 31, and a positioning block that cooperates with the positioning groove 34 is fixedly connected to the disk surface of the rotating disk 26. The cam 22 is fixed on the outer side of the rotating shaft 31, and the edge of the rotating disk 26 is fixedly connected to the lever 27 that cooperates with the lever groove 33. One end of the movable plate 5 is fixedly connected to the vertical rod 12, and the side wall of the vertical rod 12 is provided with a rack 14 that meshes with the third gear 29. The end of the vertical rod 12 away from the movable plate 5 passes through the base 1, and the vertical rod 12 is slidably connected to the base 1. The driving mechanism includes a motor 13 mounted on the side wall of the mounting frame 2, and the output shaft of the motor 13 is fixedly connected to the connecting shaft 22. The connecting shaft 22 passes through the mounting frame 2 and is rotatably connected to the mounting frame 2. The end of the connecting shaft 22 away from the motor 13 is fixedly connected to the first gear 23 that cooperates with the second gear 24.

[0025] Reference Figure 3 The adjustment mechanism includes a fixed frame 17 fixedly connected to the side wall of the mounting frame 2, and a second hydraulic cylinder 18 is fixedly installed on the inner wall of the fixed frame 17. The telescopic end of the second hydraulic cylinder 18 is fixedly connected to a movable rod 19 that cooperates with the first sliding plug cavity 38. The movable rod 19 passes through the mounting frame 2 and is slidably connected to the mounting frame 2. A plane bearing 20 is installed on the end of the movable rod 19 away from the second hydraulic cylinder 18. When the movable rod 19 is inserted into the first sliding plug cavity 38, it contacts the sliding plug plate 39 through the plane bearing 20, and will not affect the rotation of the sliding plug plate 39, and will not hinder the normal rotation of the road roller 16.

[0026] When the present invention is used, the brake assembly 8 is installed on the upper end of the movable plate 5, and the suspension assembly 11 is installed on the lower end of the connecting frame 10. The brake assembly 8 and the suspension assembly 11 are both installed by bolts, and the brake assembly 8 is connected to the suspension assembly 11; Then the first hydraulic cylinder 3 is started to extend, driving the movable plate 5 to move downward. The downward movement of the movable plate 5 can drive the suspension assembly 11 to move downward and contact the road roller 16. The motor 13 is started to drive the connecting shaft 22 to rotate, and the first gear 23 is driven to rotate through the connecting shaft 22. Since the first gear 23 is engaged with the second gear 24, the second rotating rod 35 can be driven to rotate, and the road roller 16 is driven to rotate through the second rotating rod 35, simulating the state of the wheels of the suspension assembly 11 driving on the road. Then the motor 13 is stopped to stop driving the road roller 16, and the third hydraulic cylinder 36 is started to extend, driving the pressure plate 37 to rotate and press the pedal of the brake assembly 8, simulating the durability test of the brake assembly 8 and the suspension assembly 11 in the braking state, until the wheels of the suspension assembly 11 and the road roller 16 stop rotating; Then the first hydraulic cylinder 3 is started to extend further, driving the movable plate 5 to move further downward, increasing the load pressure on the suspension assembly 11, and at the same time the second hydraulic cylinder 18 is started to extend, driving the movable rod 19 to insert into the first sliding plug cavity 38 and contact the sliding plug plate 39 through the plane bearing 20, which can push the sliding plug plate 39 to move inside the first sliding plug cavity 38. Since the first sliding plug cavity 38 and the second sliding plug cavity 42 are connected, the sliding plug rod 43 can be moved, and the sliding plug rod 43 drives the counterweight rod 44 to move a distance toward the edge of the road roller 16, thereby increasing the rotational inertia of the road roller 16 when rotating, making it more difficult to brake the road roller 16. Then the above-mentioned operation of driving the road roller 16 to rotate is repeated, which can simulate the durability test of the brake assembly 8 and the suspension assembly 11 under a heavier load and greater inertia of the vehicle. After the durability test of the brake assembly 8 and the suspension assembly 11 is completed on a road roller 16, the second hydraulic cylinder 18, the motor 13, and the third hydraulic cylinder 36 are restored to their initial states. Then, the first hydraulic cylinder 3 is started to contract, driving the movable plate 5 to move upward. When the movable plate 5 moves upward, it drives the vertical rod 12 to move upward. When the vertical rod 12 moves upward and drives the rack 14 to engage with the third gear 29, it can drive the third gear 29 to rotate, and drives the rotating shaft 31 to rotate through the one-way bearing 30, and drives the turntable 26 and the fixed plate 26 through the rotating shaft 31. The positioning block 28 rotates, and when the positioning block 28 releases the positioning of the rotating plate 32, the toggle rod 27 is engaged in the toggle slot 33, to toggle the rotating plate 32 to complete a ninety-degree rotation, and then the positioning block 28 is re-engaged in the positioning slot 34 to position the rotating plate 32. When the rotating plate 32 rotates ninety degrees, the rotating drum 15 can be driven to rotate through the first rotating rod 21, so that the next road roller 16 rotates to the top, and then the above-mentioned test process is repeated, and the durability of the brake assembly 8 and the suspension assembly 11 can be tested on the next road roller 16.

[0027] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A durability testing device for new energy vehicles, characterized in that: include: A base (1), a mounting frame (2) being fixed to the upper end of the base (1), and movable grooves (6) being provided on opposite side walls of the mounting frame (2); A movable plate (5) is arranged on the inner side of the mounting frame (2), and a connecting frame (10) is provided at the lower end of the movable plate (5); A brake pressing mechanism is provided at the upper end of the movable plate (5); A pressing mechanism is provided on the mounting frame (2), and the pressing mechanism is connected to the movable plate (5); A rotating drum (15) is arranged on the inner side of the mounting frame (2), and the rotating drum (15) is located below the movable plate (5). A first rotating rod (21) fixedly connected to the rotating drum (15) is provided through the middle of the rotating drum (15), and both ends of the first rotating rod (21) respectively pass through the two side walls of the mounting frame (2), and the first rotating rod (21) is rotatably connected to the mounting frame (2). Four device grooves (25) are provided on the side walls of the rotating drum (15) at equal intervals along the circumference thereof; Four road surface mechanisms, the four road surface mechanisms being respectively arranged inside four device slots (25); a rotating mechanism, the rotating mechanism being connected to the first rotating rod (21) and the movable plate (5), the rotating mechanism being used to drive the rotating drum (15) to rotate at an angle of ninety degrees when the movable plate (5) moves upward; A driving mechanism is provided on a side wall of the mounting frame (2), and is used to drive the road surface mechanism to rotate; An adjustment mechanism is provided on the other side wall of the mounting frame (2), and the adjustment mechanism is used to adjust the mass distribution of the road surface mechanism.

2. A durability testing device for new energy vehicles according to claim 1, characterized in that: The brake pressing mechanism includes a fixed plate (9) fixedly connected to the upper end of the movable plate (5), a pressure plate (37) is rotatably connected to the side wall of the fixed plate (9), a third hydraulic cylinder (36) is rotatably connected to the side wall of the fixed plate (9), and the telescopic end of the third hydraulic cylinder (36) is rotatably connected to the side wall of the pressure plate (37).

3. The durability testing device for new energy vehicles according to claim 1, characterized in that: The pavement mechanism comprises a pavement roller (16) arranged inside a device groove (25), a second rotating rod (35) fixedly connected to the pavement roller (16) is provided inside the pavement roller (16), both ends of the second rotating rod (35) pass through the inner wall of the device groove (25) and extend to the outside of the rotating drum (15), and the second rotating rod (35) is rotatably connected to the rotating drum (15), one end of the second rotating rod (35) is provided with a first sliding plug cavity (38), the other end of the second rotating rod (35) is fixedly sleeved with a second gear (24), a second sliding plug cavity (42) is provided in the middle of the side wall of the second rotating rod (35), and two sliding plug rods ( 43), one end of the sliding plug rod (43) away from the second rotating rod (35) is fixedly connected to the counterweight rod (44), the second rotating rod (35) is provided with a connecting channel (41), the first sliding plug cavity (38) and the second sliding plug cavity (42) are connected through the connecting channel (41), the first sliding plug cavity (38), the second sliding plug cavity (42), and the connecting channel (41) are all filled with hydraulic oil, the interior of the first sliding plug cavity (38) is slidably installed with a sliding plug plate (39), the interior of the first sliding plug cavity (38) is provided with a spring (40), one end of the spring (40) is connected to the inner wall of the first sliding plug cavity (38), and the other end of the spring (40) is connected to the sliding plug plate (39).

4. The durability testing device for new energy vehicles according to claim 1, characterized in that: The rotating mechanism comprises a rotating plate (32) fixedly connected to the end of the first rotating rod (21), four shifting grooves (33) are provided on the side wall of the rotating plate (32) at equal intervals along its circumference, four positioning grooves (34) are provided on the side wall of the rotating plate (32) at equal intervals along its circumference, the shifting grooves (33) and the positioning grooves (34) are arranged at intervals, a rotating shaft (31) is rotatably connected to the side wall of the mounting frame (2), a third gear (29) is installed on the outer wall of the rotating shaft (31) through a one-way bearing (30), and a rotating disk (26) is fixedly sleeved on the rotating shaft (31). A positioning block (28) that cooperates with the positioning groove (34) is fixedly connected to the surface of the turntable (26), and the positioning block (28) is sleeved on the outside of the rotating shaft (31). A shift rod (27) that cooperates with the shift groove (33) is fixedly connected to the edge of the surface of the turntable (26). One end of the movable plate (5) is fixedly connected to a vertical rod (12), and a rack (14) that meshes with the third gear (29) is provided on the side wall of the vertical rod (12). The end of the vertical rod (12) away from the movable plate (5) passes through the base (1), and the vertical rod (12) is slidably connected to the base (1).

5. The durability testing device for new energy vehicles according to claim 3, characterized in that: The driving mechanism comprises a motor (13) mounted on a side wall of the mounting frame (2), an output shaft of the motor (13) being fixedly connected to a connecting shaft (22), the connecting shaft (22) passing through the mounting frame (2), and the connecting shaft (22) being rotationally connected to the mounting frame (2), and an end of the connecting shaft (22) away from the motor (13) being fixedly connected to a first gear (23) cooperating with a second gear (24).

6. The durability testing device for new energy vehicles according to claim 3, characterized in that: The adjustment mechanism comprises a fixed frame (17) fixedly connected to the side wall of the mounting frame (2), a second hydraulic cylinder (18) fixedly mounted on the inner side wall of the fixed frame (17), a movable rod (19) matched with the first sliding plug cavity (38) fixedly connected to the telescopic end of the second hydraulic cylinder (18), the movable rod (19) passing through the mounting frame (2), and the movable rod (19) is slidably connected to the mounting frame (2), and a plane bearing (20) is mounted on the end of the movable rod (19) away from the second hydraulic cylinder (18).

7. The durability testing device for new energy vehicles according to claim 1, characterized in that: The pressing mechanism comprises two first hydraulic cylinders (3) mounted on the upper end of the mounting frame (2), the telescopic ends of the two first hydraulic cylinders (3) both pass through the mounting frame (2) and are fixed with connecting rods (4), and the lower ends of the two connecting rods (4) are both fixed to the upper end of the movable plate (5).

8. The durability testing device for new energy vehicles according to claim 1, characterized in that: The two ends of the movable plate (5) are respectively located inside the two movable grooves (6). Two guide rods (7) are vertically provided inside the movable groove (6). The two ends of the guide rods (7) are respectively fixedly connected to the inner top wall and the inner bottom wall of the movable groove (6). The guide rods (7) pass through the movable plate (5) and are slidably connected to the movable plate (5).

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