Lever mechanism for vehicle sideslip test bench

Abstract

The utility model relates to a lever mechanism for a vehicle sideslip test bed, which belongs to the technical field of vehicle sideslip test beds and comprises a test bed body, a sliding groove is arranged in the test bed body, a fixing seat is slidably mounted in the sliding groove, and a hydraulic cylinder is fixedly mounted on the inner wall of the sliding groove. The beneficial effects of the utility model lie in that the lateral force is applied to the tested vehicle through the lever structure to simulate the sideslip condition possibly encountered by the vehicle in the driving process so as to assess the stability and the controllability of the vehicle, and the balancing weight is additionally arranged on the lever I to balance the weight of the lever, so that the stability and the precision of the lever structure can be improved; meanwhile, a sideslip sensor is adopted as a measuring device to improve the measuring precision, the magnitude of the applied lateral force is conveniently adjusted through the arrangement of the hydraulic cylinder, and the lateral force applied to the tested vehicle can be accurately controlled by adjusting the pressure of the hydraulic cylinder or the air cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle sideslip test benches, in particular to a lever mechanism for a vehicle sideslip test bench. Background Art

[0002] The phenomenon that the wheels of a certain axle or two axles of a moving car move laterally (i.e. swing to the side) due to braking, rotational inertia and other reasons is called skidding. There are three types of car skidding: four-wheel skidding, front-wheel skidding and rear-wheel skidding. Car skidding, especially rear-wheel skidding, poses a greater threat to safe driving and often causes serious traffic accidents such as collisions, rollovers and falling into ditches. In order to ensure the straight-line rolling of the steering wheels of the car without lateral movement, the camber angle and wheel toe must be properly matched. When the wheel toe value does not match the vehicle camber angle, the vehicle may not roll purely in a straight line and produce lateral skidding. When this skidding phenomenon is too severe, it will destroy the adhesion conditions of the wheels, lose the ability to drive in a directional manner, cause traffic accidents and lead to abnormal wear of the tires. The size and direction of the lateral skidding can be checked on a car side skidding test bench.

[0003] Conventional methods include using large hydraulic systems or complex mechanical transmission mechanisms to apply lateral force. Although these methods are effective, they have high equipment costs, occupy a large area, and are difficult to maintain. In addition, these systems are often bulky and not conducive to installation and use in limited spaces. Utility Model Content

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a lever mechanism for a vehicle sideslip test bench.

[0005] The technical solution of the utility model is as follows: a lever mechanism for a vehicle sideslip test bench, comprising a test bench body, a sliding groove is opened inside the test bench body, a fixed seat is slidably installed inside the sliding groove, a hydraulic cylinder is fixedly installed on the inner wall of the sliding groove, a piston rod of the hydraulic cylinder is fixedly connected to a transmission seat, a lever 2 is arranged between the transmission seat and the fixed seat, a lever 1 is slidably installed inside the lever 2, a counterweight block is fixedly connected to the outer side of the lever 1, and a sideslip sensor is fixedly installed on the outer side of the lever 1 and on one side of the counterweight block.

[0006] By adopting the above technical solution, a lateral force is applied to the test vehicle through a lever structure to simulate the side slip situation that the vehicle may encounter during driving, so as to evaluate the stability and handling of the vehicle, and a counterweight block is added to the lever to balance the weight of the lever, which can improve the stability and accuracy of the lever structure and reduce measurement errors. At the same time, a side slip sensor is used as a measuring device to improve measurement accuracy, and the hydraulic cylinder is set to facilitate the adjustment of the size of the applied lateral force.

[0007] As a preferred embodiment, a second hinge is provided at one end of the first lever away from the second lever. The second hinge is rotatably connected to the end of the first lever away from the second lever, and the second hinge is fixedly connected to the bottom end of the fixed seat. A first hinge is provided at one end of the second lever away from the first lever. The first hinge is rotatably connected to the second lever, and a U-shaped plate is provided on the outer side of the transmission seat. The U-shaped plate is fixedly connected to the first hinge.

[0008] By adopting the above technical solution, through the arrangement of the second hinge and the first hinge, it can cooperate with the lever structure to rotate.

[0009] As a preferred embodiment, an adjusting mechanism is provided inside the second lever and the first lever. The adjusting mechanism includes mounting holes equidistantly opened inside the second lever and the first lever. The mounting holes penetrate through the inside of the second lever and the first lever. A pin is inserted into the inside of one of the mounting holes, and the pin penetrates through the two mounting holes.

[0010] By adopting the above technical solution, by adjusting the length of the lever, it can adapt to test vehicles of different sizes and weights to meet different test requirements.

[0011] As a preferred embodiment, a limiting mechanism is provided inside the test bench body. The limiting mechanism includes a limiting groove opened at the bottom end of the inner wall of the test bench body. A limiting block is slidably connected inside the limiting groove, and the limiting block is fixedly connected to the bottom end of the fixed seat.

[0012] By adopting the above technical solution, through the cooperation of the limiting groove and the limiting block, it can play a certain limiting role on the fixed seat.

[0013] As a preferred embodiment, an inspection opening is provided on one side of the test bench body.

[0014] By adopting the above technical solution, through the setting of the inspection opening, it is convenient to adjust the position of the pin in the adjusting mechanism.

[0015] As a preferred embodiment, a controller is provided on the outer side of the test bench body. Both the hydraulic cylinder and the side slip sensor are electrically connected to the controller.

[0016] By adopting the above technical solution, the controller can control the start and stop of the hydraulic cylinder and the side slip sensor.

[0017] Compared with the prior art, the advantages and positive effects of the present utility model are that,

[0018] 1. In this utility model, it has a simple structure, low cost, small floor area, and is easy to maintain and operate. This technical solution adopts a simple lever mechanism without a complex hydraulic system or mechanical transmission mechanism, thus reducing the equipment cost and maintenance difficulty. Due to the simple structure, the maintenance workload of this technical solution is small and the operation is convenient. A lateral force is applied to the test vehicle through the lever structure to simulate the side-slip situation that the vehicle may encounter during driving, so as to evaluate the stability and controllability of the vehicle.

[0019] 2. In this utility model, a counterweight is added to the first lever to balance the weight of the lever, which can improve the stability and accuracy of the lever structure and reduce the measurement error. At the same time, a side-slip sensor is used as the measuring device to improve the measurement accuracy, and through the setting of the hydraulic cylinder, it is convenient to adjust the magnitude of the applied lateral force, and by adjusting the pressure of the hydraulic cylinder or air cylinder, the lateral force applied to the test vehicle can be precisely controlled.

[0020] 3. In this utility model, by adjusting the length of the lever, it can adapt to test vehicles of different sizes and weights to meet different test requirements, and through the setting of the inspection opening, it is convenient to adjust the position of the pin in the adjustment mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall three-dimensional view of a lever mechanism for a vehicle side-slip test bench provided by this utility model;

[0022] Figure 2 It is a cross-sectional view of a lever mechanism for a vehicle side-slip test bench provided by this utility model;

[0023] Figure 3 It is a schematic diagram of the internal structure of a lever mechanism for a vehicle side-slip test bench provided by this utility model;

[0024] Figure 4 It is a schematic diagram of the adjustment mechanism structure of a lever mechanism for a vehicle side-slip test bench provided by this utility model.

[0025] Legend: 1. Test bench body; 2. Sliding groove; 3. Fixed seat; 4. Hydraulic cylinder; 5. Transmission seat; 6. First hinge; 7. Side-slip sensor; 8. Counterweight; 9. First lever; 10. Second hinge; 11. Second lever; 12. Pin; 13. Mounting hole; 14. Limit block; 15. Limit groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0027] Referring to Figures 1-4 , a lever mechanism for a vehicle side slip test bench, including a test bench body 1. A sliding groove 2 is opened inside the test bench body 1. A fixed seat 3 is slidably installed inside the sliding groove 2. A hydraulic cylinder 4 is fixedly installed on the inner wall of the sliding groove 2. The piston rod of the hydraulic cylinder 4 is fixedly connected to a transmission seat 5. A lever two 11 is arranged between the transmission seat 5 and the fixed seat 3. A lever one 9 is slidably installed inside the lever two 11. A counterweight 8 is fixedly connected to the outer side of the lever one 9. A side slip sensor 7 is fixedly installed on the outer side of the lever one 9 and on one side of the counterweight 8. A lateral force is applied to the test vehicle through the lever structure to simulate the side slip situation that the vehicle may encounter during driving, so as to evaluate the stability and controllability of the vehicle. A counterweight 8 is added to the lever one 9 to balance the weight of the lever, which can improve the stability and accuracy of the lever structure and reduce the measurement error. At the same time, a side slip sensor 7 is used as the measuring device to improve the measurement accuracy. Through the setting of the hydraulic cylinder 4, it is convenient to adjust the magnitude of the applied lateral force. By adjusting the pressure of the hydraulic cylinder or air cylinder, the lateral force applied to the test vehicle can be accurately controlled.

[0028] Referring to Figure 4 , a hinge two 10 is arranged at one end of the lever one 9 away from the lever two 11. The hinge two 10 is rotatably connected to the end of the lever one 9 away from the lever two 11. The hinge two 10 is fixedly connected to the bottom end of the fixed seat 3. A hinge one 6 is arranged at one end of the lever two 11 away from the lever one 9. The hinge one 6 is rotatably connected to the lever two 11. A U-shaped plate is arranged on the outer side of the transmission seat 5. The U-shaped plate is fixedly connected to the hinge one 6. Through the settings of the hinge two 10 and the hinge one 6, it can rotate in cooperation with the lever structure to cooperate with the vehicle to perform a lateral force test.

[0029] Referring to Figure 4 , an adjusting mechanism is arranged inside the lever two 11 and the lever one 9. The adjusting mechanism includes mounting holes 13 that are equidistantly opened inside the lever two 11 and the lever one 9. The mounting holes 13 penetrate through the inside of the lever two 11 and the lever one 9. A pin 12 is inserted into one of the mounting holes 13. The pin 12 penetrates through the two mounting holes 13. By adjusting the length of the lever, it can adapt to test vehicles of different sizes and weights to meet different test requirements.

[0030] Referring to Figure 3, a limiting mechanism is arranged inside the test bench body 1. The limiting mechanism includes a limiting groove 15 formed at the bottom end of the inner wall of the test bench body 1. A limiting block 14 is slidably connected inside the limiting groove 15. The limiting block 14 is fixedly connected to the bottom end of the fixed seat 3. By the cooperative use of the limiting groove 15 and the limiting block 14, a certain limiting effect can be exerted on the fixed seat 3 to ensure the success of the lateral force test.

[0031] Refer to Figure 4 , an inspection opening is arranged on one side of the test bench body 1. Through the arrangement of the inspection opening, it is convenient to adjust the position of the bolt 12 in the adjusting mechanism.

[0032] Refer to Figure 1 , a controller is arranged on the outer side of the test bench body 1. The hydraulic cylinder 4 and the side slip sensor 7 are both electrically connected to the controller. The start and stop of the hydraulic cylinder 4 and the side slip sensor 7 can be controlled through the controller.

[0033] Working principle: First, a lateral force is applied to the test vehicle through a lever structure to simulate the side slip situation that the vehicle may encounter during driving, so as to evaluate the stability and controllability of the vehicle. A counterweight block 8 is added to the lever 9 to balance the weight of the lever, which can improve the stability and accuracy of the lever structure and reduce the measurement error. At the same time, the side slip sensor 7 is used as a measuring device to improve the measurement accuracy. Through the setting of the hydraulic cylinder 4, it is convenient to adjust the magnitude of the applied lateral force. By adjusting the pressure of the hydraulic cylinder or the air cylinder, the lateral force applied to the test vehicle can be accurately controlled. By adjusting the length of the lever, test vehicles of different sizes and weights can be adapted to meet different test requirements.

[0034] The above are only the preferred embodiments of the present application and are not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lever mechanism for a vehicle side slip test bench, comprising a test bench body (1), characterized in that: The test bench body (1) is provided with a sliding groove (2) inside, a fixed seat (3) is slidably mounted inside the sliding groove (2), a hydraulic cylinder (4) is fixedly mounted on the inner wall of the sliding groove (2), a piston rod of the hydraulic cylinder (4) is fixedly connected to a transmission seat (5), a lever 2 (11) is provided between the transmission seat (5) and the fixed seat (3), a lever 1 (9) is slidably mounted inside the lever 2 (11), a counterweight (8) is fixedly connected to the outside of the lever 1 (9), and a side slip sensor (7) is fixedly mounted on the outside of the lever 1 (9) and on one side of the counterweight (8).

2. The lever mechanism for a vehicle sideslip test bench according to claim 1, characterized in that: The end of the lever one (9) away from the lever two (11) is provided with a hinge two (10), and the hinge two (10) is rotatably connected to the end of the lever one (9) away from the lever two (11), and the hinge two (10) is fixedly connected to the bottom end of the fixed seat (3), and the end of the lever two (11) away from the lever one (9) is provided with a hinge one (6), and the hinge one (6) is rotatably connected to the lever two (11), and a U-shaped plate is provided on the outer side of the transmission seat (5), and the U-shaped plate is fixedly connected to the hinge one (6).

3. The lever mechanism for a vehicle sideslip test bench according to claim 1, characterized in that: The second lever (11) and the first lever (9) are provided with an adjustment mechanism, the adjustment mechanism comprising mounting holes (13) equidistantly arranged inside the second lever (11) and the first lever (9), the mounting holes (13) passing through the inside of the second lever (11) and the first lever (9), a latch (12) being inserted into the inside of one of the mounting holes (13), the latch (12) passing through the two mounting holes (13).

4. The lever mechanism for a vehicle sideslip test bench according to claim 1, characterized in that: A limiting mechanism is arranged inside the test bench body (1), the limiting mechanism comprising a limiting groove (15) formed at the bottom end of the inner wall of the test bench body (1), the limiting groove (15) being internally slidably connected to a limiting block (14), and the limiting block (14) being fixedly connected to the bottom end of the fixing seat (3).

5. The lever mechanism for a vehicle sideslip test bench according to claim 1, characterized in that: A maintenance opening is provided on one side of the test bench body (1).

6. The lever mechanism for a vehicle sideslip test bench according to claim 1, characterized in that: A controller is provided on the outside of the test bench body (1), and the hydraulic cylinder (4) and the sideslip sensor (7) are both electrically connected to the controller.

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