Whole automobile test bench

Abstract

The utility model relates to the technical field of test benches, in particular to a finished automobile test bench, which comprises a test bench main body, supporting legs are mounted at corners of the bottom of the test bench main body, and guide slopes are mounted at two ends of the outer wall of the test bench main body. Electric telescopic rods are symmetrically installed between the supporting legs on the two sides of the bottom of the test bed body, connecting rods are installed at the driving ends of the electric telescopic rods, a containing groove is formed in one end of the top of the test bed body, and two sets of test wheels are rotationally connected to the inner side of the containing groove; movable positioning mechanisms are mounted on the two groups of connecting rods; the device is simple in structure and convenient to operate, arc-shaped clamping plates of different sizes can be provided and replaced according to wheels of different thicknesses, the replacement process is rapid and time-saving and labor-saving, the clamping contact area of the arc-shaped clamping plates and the wheels during positioning is increased, and the stability of the front wheels during testing of an automobile is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of test bench technology, specifically to an automobile whole vehicle test bench. Background Technology

[0002] Electric vehicles refer to vehicles that use on-board power sources to drive their wheels with electric motors and meet all requirements of road traffic and safety regulations. With the development of electric vehicles, the social demand for new types of electric vehicles such as pure electric buses, pure electric freight trucks, and pure electric / hybrid logistics vehicles is increasing. However, current electric vehicle test benches cannot quickly fix the wheels of electric vehicles entering the test bench. Furthermore, when performing rotation tests on the wheels, the mounting base for the rotating rollers is exposed to the outside, which can cause external debris to come into contact with the mounting base and affect the service life of the rollers.

[0003] To address the aforementioned technical problems, Chinese Patent No. CN216132701U discloses a multi-purpose electric vehicle test bench, which includes a test bench. The upper surface of the test bench is symmetrically provided with a moving groove, and a rotating groove is symmetrically provided at one position on the upper surface of the test bench near the moving groove. The two ends of the moving groove are symmetrically provided with telescopic grooves.

[0004] While the aforementioned existing technical solutions prevent external debris from contacting the mounting base and provide protection, the square shape of the clamps used to fix the front wheels results in a small contact area with round wheels. Furthermore, in order for the vehicle's wheels to move over the clamps to the moving slot, the height of the clamps cannot be set too high. Moreover, the clamps are directly mounted on the upper end of the electric push rod, making them difficult to disassemble quickly. As a result, it is not possible to provide and replace clamps of different sizes and shapes according to the different wheel diameters. The square clamps also have a limited clamping contact area with the wheels, which in turn affects the stability of the front wheels during vehicle testing. Utility Model Content

[0005] The purpose of this utility model is to provide an automobile test bench to solve the problem mentioned in the background art. The test bench used to fix the front wheels has a square clamp with a small contact area with the round wheels. In order for the vehicle wheels to move over the clamp to the moving slot, the height of the clamp cannot be set too high. Moreover, the clamp is directly installed on the upper end of the electric push rod, which makes it difficult to quickly separate. As a result, it is not possible to provide and replace clamps of different sizes and shapes according to the size of wheels of different thicknesses. The square clamp also has a limited clamping contact area with the wheel, which affects the stability of the front wheels when the car is being tested.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vehicle testing bench includes a main body, with support feet installed at the corners of the bottom of the main body. Guide ramps are installed at both ends of the outer wall of the main body. Electric telescopic rods are symmetrically installed between the support feet on both sides of the bottom of the main body. A connecting rod is installed at the drive end of the electric telescopic rod. A placement groove is opened at one end of the top of the main body. Two sets of test wheels are rotatably connected inside the placement groove. Movable positioning mechanisms are installed on both sets of connecting rods. The movable positioning mechanisms include an adjusting sliding component, two sets of arc-shaped clamps, and a replacement component. The adjusting sliding component is used to adjust the position of the arc-shaped clamps, and the replacement component is used to disassemble and replace the arc-shaped clamps.

[0008] As a preferred embodiment of this utility model, the adjusting sliding assembly includes a placement seat installed at both ends of the connecting rod. The top of the placement seat is provided with an adjusting groove. A threaded rod is rotatably connected to the inner side of the adjusting groove. An adjusting plate is threadedly connected to the outer side of the threaded rod. The adjusting plate has an L-shaped cross-section. One side of the arc-shaped clamp is fixedly connected to one end of the adjusting plate.

[0009] As a preferred embodiment of this utility model, a first motor is installed at the opposite end of the two sets of placement seats. The drive end of the first motor extends to the inner side of the adjustment groove and is fixedly connected to one end of the threaded rod. The adjustment plate and the adjustment groove are slidably connected.

[0010] As a preferred embodiment of this utility model, the switching component includes a fixed base installed at the other end of the adjusting plate. A movable rod is slidably connected to one end of the fixed base. An extension groove is provided in a section of the fixed base located outside the movable rod. A locking block is installed at the bottom end of the movable rod. A docking groove is provided in the fixed base located on one side of the extension groove. A docking plate is slidably connected to the inner side of the docking groove. One side of the docking plate is fixedly connected to one side of the arc-shaped clamping plate.

[0011] As a preferred embodiment of this utility model, a sliding groove is provided at one end of the inner side of the docking plate. The sliding groove has an L-shaped cross-section. The movable rod is slidably connected to the center of the sliding groove. A rotating locking groove is provided inside the fixed seat on one side of the docking groove. A first spring is installed at the bottom of the inner wall of the rotating locking groove. A pull ring is installed at the end of the movable rod that extends to the outside of the fixed seat.

[0012] As a preferred embodiment of this utility model, a tray is installed at the other end of the first spring. The tray is slidably connected to the rotary lock groove. A rotating disk is rotatably connected to the top of the tray. A linkage groove is opened at the top of the rotating disk. A linkage block is installed at the bottom of the locking block and is slidably connected to the linkage groove. A blocking groove is opened on one side of the inner wall of the rotary lock groove. A blocking frame is slidably connected to the inner side of the blocking groove. A second spring is installed between one side of the outer wall of the blocking frame and the inner wall of the blocking groove. Corresponding inclined surfaces are opened at the contact ends of the locking block and the blocking frame.

[0013] As a preferred embodiment of this utility model, a clearance groove is provided at one top end of the locking block, a rotating rod is rotatably connected to the inner side of the clearance groove, a clearance plate is fixedly sleeved on the outer side of the rotating rod, a torsion spring is installed between the rotating rod and the inner wall of the clearance groove, a traction groove is provided at one bottom end of the blocking frame and slidably connected to the clearance plate, and the elastic force of the second spring is greater than the elastic force of the torsion spring.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the position of the arc-shaped clamping plate is adjusted by adjusting the sliding component, and the arc-shaped clamping plate is disassembled and replaced by the replacement component. The structure is simple and easy to operate. It can provide and replace arc-shaped clamping plates of different sizes according to different wheel thicknesses. The replacement process is quick, time-saving and labor-saving. It improves the clamping contact area between the arc-shaped clamping plate and the wheel during positioning, and further ensures the stability of the front wheels of the car during testing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the placement base of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the fixing base of this utility model;

[0019] Figure 4 This is a partial three-dimensional structural diagram of the movable rod of this utility model.

[0020] In the diagram: 1. Main body of the test bench; 2. Electric telescopic rod; 3. Connecting rod; 4. Test wheel; 5. Rotary lock groove; 6. Arc-shaped clamp; 7. Placement seat; 8. Threaded rod; 9. Adjusting plate; 10. First motor; 11. Fixed seat; 12. Movable rod; 13. Locking block; 14. Connecting plate; 15. First spring; 16. Tray; 17. Linkage block; 18. Barrier frame; 19. Second spring; 20. Clearance plate; 21. Torsion spring; 22. Rotary disk. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example: Please refer to Figures 1-4 This utility model provides a technical solution:

[0023] A vehicle testing bench includes a main body 1. Support legs are installed at the corners of the bottom of the main body 1. Guide ramps are installed at both ends of the outer wall of the main body 1. Electric telescopic rods 2 are symmetrically installed between the support legs on both sides of the bottom of the main body 1. Connecting rods 3 are installed at the drive ends of the electric telescopic rods 2. A placement groove is opened at one end of the top of the main body 1. Two sets of test wheels 4 are rotatably connected inside the placement groove. Movable positioning mechanisms are installed on both sets of connecting rods 3. The movable positioning mechanisms include adjusting sliding components and two sets of arc-shaped clamps. The device includes a sliding adjustment component for adjusting the position of the arc-shaped clamping plate 6 and a replacement component for disassembling and replacing the arc-shaped clamping plate 6. During use, the position of the arc-shaped clamping plate 6 can be adjusted by adjusting the sliding component, and the replacement component can disassemble and replace the arc-shaped clamping plate 6. The device is simple in structure and easy to operate. It can provide and replace arc-shaped clamping plates 6 of different sizes according to different wheel diameters. The replacement process is quick, time-saving, and labor-saving, increasing the clamping contact area between the arc-shaped clamping plate 6 and the wheel during positioning, further ensuring the stability of the front wheels of the vehicle during testing.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the adjusting sliding assembly includes a placement seat 7 installed at both ends of the connecting rod 3. The top of the placement seat 7 is provided with an adjusting groove. A threaded rod 8 is rotatably connected to the inner side of the adjusting groove. An adjusting plate 9 is threadedly connected to the outer side of the threaded rod 8. The cross-section of the adjusting plate 9 is L-shaped. One side of the arc-shaped clamp 6 is fixedly connected to one end of the adjusting plate 9. First, the car is moved along the guide slope to the top of the test bench body 1, so that its rear wheels are placed between the two sets of test wheels 4. Then, the electric telescopic rod 2 is activated, which can drive the two sets of connecting rods 3 to approach the front wheels of the car.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, a first motor 10 is installed at one end of each of the two sets of placement seats 7. The drive end of the first motor 10 extends to the inside of the adjustment groove and is fixedly connected to one end of the threaded rod 8. The adjustment plate 9 is slidably connected to the adjustment groove. Then, after one end of the arc-shaped clamping plate 6 is placed above the test bench body 1, the first motor 10 can be started to drive the threaded rod 8 to rotate, so that the two sets of adjustment plates 9 slide inside the adjustment groove, driving the arc-shaped clamping plate 6 to approach and fit against the outer surface of the front wheel for clamping and positioning. Because the arc structure can increase the contact area with the front wheel and enhance the positioning effect, the test operation can be carried out after the positioning is completed.

[0026] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the replacement assembly includes a fixed base 11 installed at the other end of the adjusting plate 9. A movable rod 12 is slidably connected to one end of the fixed base 11. An extension groove is formed on the outer side of the movable rod 12 inside the fixed base 11. A locking block 13 is installed at the bottom end of the movable rod 12. A mating groove is formed on one side of the extension groove inside the fixed base 11. A mating plate 14 is slidably connected to the inner side of the mating groove. One side of the mating plate 14 is fixedly connected to one side of the arc-shaped clamping plate 6. A sliding groove is formed at one end of the mating plate 14. The cross-section is L-shaped. The movable rod 12 is slidably connected to the center of the sliding groove. The fixed seat 11 has a rotating lock groove 5 on one side of the docking groove. A first spring 15 is installed at the bottom of the inner wall of the rotating lock groove 5. A pull ring is installed at the end of the movable rod 12 that extends to the outside of the fixed seat 11. Furthermore, during assembly, the arc-shaped clamp 6 can first pull up the pull ring to lift the movable rod 12 and the locking block 13. Then, the docking plate 14 on the back of the arc-shaped clamp 6 is inserted into the docking groove. Then, the pull ring is fastened and the movable rod 12 is pressed down to drive the locking block. 13 slides into the inner side of the rotary lock groove 5 through the sliding groove. The movable rod 12 is slidably connected to the center of the sliding groove and will not slide inside the ports on both sides, achieving initial positioning. After the linkage block 17 aligns with the linkage groove, the continued downward movement will cause the locking block 13 to contact the blocking frame 18. When in contact, the two sets of inclined surfaces will also abut against each other. The blocking frame 18 can squeeze the second spring 19 inside the blocking groove to retract and avoid it. When the locking block 13 and the blocking frame 18 are misaligned, the blocking frame 18 can be driven to rebound. At this time, the avoidance plate 20 will contact the blocking frame 18. Because the elastic force of the second spring 19 is greater than that of the torsion spring 21, the avoidance plate 20 retracts and avoids on the inclined surface of 8. During the downward movement, it will continuously squeeze the tray 16, the rotating disk 22 and the first spring 15 to retract. After the avoidance plate 20 is also misaligned with the barrier frame 18 and the avoidance plate 20 is ejected by the torsion spring 21, the movable rod 12 can be pulled back to lock the avoidance plate 20 into the pulling groove on the barrier frame 18, so that the movable rod 12 can always be positioned at the center of the sliding groove.

[0027] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, a tray 16 is installed at the other end of the first spring 15. The tray 16 is slidably connected to the rotary lock groove 5. A rotating disk 22 is rotatably connected to the top of the tray 16. A linkage groove is opened at the top of the rotating disk 22. A linkage block 17 is installed at the bottom of the locking block 13 and is slidably connected to the linkage groove. A blocking groove is opened on one side of the inner wall of the rotary lock groove 5. A blocking frame 18 is slidably connected to the inside of the blocking groove. A second spring 19 is installed between one side of the outer wall of the blocking frame 18 and the inner wall of the blocking groove. Corresponding inclined surfaces are opened at the contact ends of the locking block 13 and the blocking frame 18. A clearance groove is opened at one top end of the locking block 13. A rotating rod is rotatably connected to the inside of the clearance groove. A clearance plate 20 is fixedly sleeved on the outside of the rotating rod. A torsion spring 21 is installed between the rotating rod and the inner wall of the clearance groove. One end of the bottom of 18 is provided with a traction groove that slides with the avoidance plate 20. The elastic force of the second spring 19 is greater than that of the torsion spring 21. Furthermore, when it is necessary to replace the arc-shaped clamp 6 to position wheels of different thicknesses, the pull ring can be fastened again to drive the movable rod 12 down, squeezing the rotating disk 22 and the tray 16 to make the second spring 19 retract. After the avoidance plate 20 is pulled out of the traction groove, the movable rod 12 can be twisted in conjunction with the rotating disk 22 to make the locking block 13 rotate to the longitudinal direction. At this time, when the movable rod 12 is pulled back, the locking block 13 will not contact the blocking frame 18 when it moves. It can be pulled directly to the inside of the extension groove along the transfer groove. At this time, the arc-shaped clamp 6 of the same size can be removed along with the docking plate 14, and the arc-shaped clamp 6 of the corresponding size can be assembled.

[0028] The implementation principle of a vehicle testing bench according to an embodiment of this application is as follows: First, the car is moved along the guide slope to the top of the test bench body 1, with its rear wheels positioned between two sets of test wheels 4. Then, the electric telescopic rod 2 is activated, which drives the two sets of connecting rods 3 closer to the front wheels of the car. After one end of the arc-shaped clamping plate 6 is placed above the test bench body 1, the first motor 10 is activated to drive the threaded rod 8 to rotate, causing the two sets of adjusting plates 9 to slide inside the adjusting groove. This causes the arc-shaped clamping plate 6 to approach and fit against the outer surface of the front wheel for clamping and positioning. Because the arc-shaped structure increases the contact area with the front wheel, it enhances the positioning effect. After positioning, the test operation can be performed. When assembling the curved clamp 6, first pull up the pull ring to lift the movable rod 12 and the locking block 13. Then, insert the mating plate 14 on the back of the curved clamp 6 into the mating groove. Next, hold the pull ring and press down on the movable rod 12 to drive the locking block 13 through the sliding groove into the inside of the rotary lock groove 5. The movable rod 12 is slidably connected to the center of the sliding groove and will not slide inside the ports on both sides, achieving initial positioning. After the linkage block 17 aligns with the linkage groove, continuing to move downwards will cause the locking block 13 to contact the blocking frame 18. When in contact, the two sets of inclined surfaces will also abut against each other. The blocking frame 18 can squeeze the second spring 19 inside the blocking groove to retract and avoid the obstruction. When the locking block 17... When the barrier frame 18 is misaligned with the barrier plate 20, the barrier frame 18 can be driven to rebound. At this time, the clearance plate 20 will contact the inclined surface of the barrier frame 18. Because the elastic force of the second spring 19 is greater than the elastic force of the torsion spring 21, the clearance plate 20 retracts and avoids the barrier plate 20 inside the clearance groove. During the downward movement, it will continuously squeeze the tray 16, the rotating disk 22 and the first spring 15 to retract. After the clearance plate 20 is also misaligned with the barrier frame 18 and the clearance plate 20 is ejected by the torsion spring 21, the movable rod 12 can be pulled back to make the clearance plate 20 lock into the pulling groove on the barrier frame 18 to achieve locking, so that the movable rod 12 can always be in the center of the through groove for positioning. When it is necessary to replace the arc-shaped clamp 6 to position wheels of different sizes, the pull ring can be fastened again to drive the movable rod 12 down, squeezing the rotating disk 22 and the tray 16 to cause the second spring 19 to retract. After the avoidance plate 20 is pulled out of the inner side of the pulling groove, the movable rod 12 can be twisted in conjunction with the rotating disk 22 to make the locking block 13 rotate to the longitudinal direction. At this time, when the movable rod 12 is pulled back, the locking block 13 will not contact the blocking frame 18 when it moves. It can be pulled directly to the inner side of the extension groove along the transfer groove. At this time, the arc-shaped clamp 6 of the same size can be removed along with the docking plate 14, and the arc-shaped clamp 6 of the corresponding size can be assembled.

[0029] The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle testing bench, comprising a main body (1), characterized in that: Support feet are installed at the corners of the bottom of the test bench body (1). Guide slopes are installed at both ends of the outer wall of the test bench body (1). Electric telescopic rods (2) are symmetrically installed between the support feet on both sides of the bottom of the test bench body (1). A connecting rod (3) is installed at the drive end of the electric telescopic rod (2). A placement groove is opened at one end of the top of the test bench body (1). Two sets of test wheels (4) are rotatably connected inside the placement groove. Movable positioning mechanisms are installed on both sets of connecting rods (3). The movable positioning mechanism includes an adjusting sliding component, two sets of arc-shaped clamps (6) and a replacement component. The adjusting sliding component is used to adjust the position of the arc-shaped clamps (6). The replacement component is used to disassemble and replace the arc-shaped clamps (6).

2. The vehicle testing bench according to claim 1, characterized in that: The adjusting sliding assembly includes a placement seat (7) installed at both ends of the connecting rod (3). The top of the placement seat (7) is provided with an adjusting groove. A threaded rod (8) is rotatably connected to the inner side of the adjusting groove. An adjusting plate (9) is threadedly connected to the outer side of the threaded rod (8). The cross-section of the adjusting plate (9) is L-shaped. One side of the arc-shaped clamp (6) is fixedly connected to one end of the adjusting plate (9).

3. The automobile testing bench according to claim 2, characterized in that: The two sets of placement seats (7) are equipped with a first motor (10) at opposite ends. The drive end of the first motor (10) extends to the inner side of the adjustment groove and is fixedly connected to one end of the threaded rod (8). The adjustment plate (9) is slidably connected to the adjustment groove.

4. The automobile testing bench according to claim 3, characterized in that: The switching assembly includes a fixed base (11) installed at the other end of the adjusting plate (9). A movable rod (12) is slidably connected to one end of the fixed base (11). An extension groove is provided in a section of the fixed base (11) located outside the movable rod (12). A locking block (13) is installed at the bottom end of the movable rod (12). A docking groove is provided in one side of the extension groove inside the fixed base (11). A docking plate (14) is slidably connected to the inside of the docking groove. One side of the docking plate (14) is fixedly connected to one side of the arc-shaped clamp (6).

5. The automobile test bench according to claim 4, characterized in that: The docking plate (14) has a sliding groove at one end, the sliding groove has an L-shaped cross section, the movable rod (12) is slidably connected to the center of the sliding groove, the fixed seat (11) has a rotating lock groove (5) on one side of the docking groove, the bottom of the inner wall of the rotating lock groove (5) is equipped with a first spring (15), and a pull ring is installed at one end of the movable rod (12) extending to the outside of the fixed seat (11).

6. The automobile testing bench according to claim 5, characterized in that: A tray (16) is installed at the other end of the first spring (15). The tray (16) is slidably connected to the rotary lock groove (5). A rotating disk (22) is rotatably connected to the top of the tray (16). A linkage groove is opened at the top of the rotating disk (22). A linkage block (17) is installed at the bottom of the locking block (13) and is slidably connected to the linkage groove. A blocking groove is opened on one side of the inner wall of the rotary lock groove (5). A blocking frame (18) is slidably connected to the inner side of the blocking groove. A second spring (19) is installed between one side of the outer wall of the blocking frame (18) and the inner wall of the blocking groove. Corresponding inclined surfaces are opened at the contact ends of the locking block (13) and the blocking frame (18).

7. The vehicle testing bench according to claim 6, characterized in that: The top end of the locking block (13) is provided with a clearance groove, and a rotating rod is rotatably connected to the inside of the clearance groove. A clearance plate (20) is fixedly sleeved on the outside of the rotating rod. A torsion spring (21) is installed between the rotating rod and the inner wall of the clearance groove. A traction groove is provided at the bottom end of the blocking frame (18) and is slidably connected to the clearance plate (20). The elastic force of the second spring (19) is greater than the elastic force of the torsion spring (21).

Images