Fatigue testing device for automobile stabilizer bar

Abstract

The utility model discloses an automobile stabilizer bar fatigue testing device, and relates to the field of stabilizer bar fatigue testing. The automobile stabilizer bar fatigue testing device comprises a base, and a plurality of pushing units and a plurality of transmission units are arranged on the base. According to the automobile stabilizer bar fatigue test device, force is applied to the sliding bar through the spring connected with the extrusion seat, fatigue pressure tests under different strengths are carried out by adjusting the deformation degree of the spring and changing the applied force to the sliding bar, upward thrust is applied to one side of the stabilizer bar, and downward tension is applied to the other side of the stabilizer bar; forces in different directions are simulated to be applied to the two sides of the stabilizer bar, fatigue testing is conducted, meanwhile, under the application force of the spring, it is effectively avoided that rigid extrusion is conducted on the stabilizer bar, the stabilizer bar deforms and influences follow-up measurement results, and the situation that the stabilizer bar breaks due to the rigid extrusion is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stabilizer bar fatigue test, specifically to a kind of automobile stabilizer bar fatigue test device. BACKGROUND

[0002] Stabilizer bar fatigue test is to simulate the stress situation that automobile stabilizer bar may encounter in actual working environment, to evaluate its fatigue performance and durability under long time use.

[0003] Stabilizer bar fatigue test mainly through the cyclic loading to stabilizer bar, simulates various stress situations that may be encountered in actual use process.

[0004] Usually adopt electro-hydraulic servo control system, can accurately control the size of loading force and loading rate, real-time monitoring the deformation and stress of stabilizer bar, but when exerting force to stabilizer bar by electro-hydraulic servo control system, its servo motor starts, and the rated load is applied to test joint, so that test head moves and hard extrusion is generated to stabilizer bar, leading to the deformation of stabilizer bar, which will affect the subsequent measurement results, and when hard extrusion is too large, it will lead to direct fracture, resulting in experiment cannot be carried out, so we propose a kind of automobile stabilizer bar fatigue test device. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of prior art, the utility model provides a kind of automobile stabilizer bar fatigue test device, solve the problem that servo motor starts, and the rated load is applied to test joint, so that test head moves and hard extrusion is generated to stabilizer bar, leading to the deformation of stabilizer bar, which will affect the subsequent measurement results, and when hard extrusion is too large, it will lead to direct fracture, resulting in experiment cannot be carried out.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of automobile stabilizer bar fatigue test device, including base, the base is fixedly connected with mounting seat, the mounting seat is installed with stabilizer bar, the base is provided with:

[0007] Multiple push units, the push unit includes support seat fixedly connected on base, the inner wall of support seat is slidably connected with sliding rod, the top end surface of sliding rod is fixedly connected with rotating seat, and one end of rotating seat is rotatably connected with stabilizer bar;

[0008] Multiple transmission units, the transmission unit includes screw rod rotatably connected on the inner wall of support seat, and the inner wall of screw rod is slidably connected with extrusion seat.

[0009] Preferably, one end of the screw rod is fixedly sleeved with a belt pulley.

[0010] Preferably, a plurality of moving seats are threadedly connected to the outer peripheral wall of the screw rod.

[0011] Preferably, the outer wall of the moving seat is fixedly connected with a spring.

[0012] Preferably, the other end of the spring is fixedly connected with an adjusting seat, and the adjusting seat is slidingly connected to the outer peripheral wall of the screw rod.

[0013] Preferably, a threaded rod is slidingly connected to the inner wall of the adjusting seat, and the threaded rod is fixedly connected with the extruding seat.

[0014] Preferably, a nut seat is threadedly connected to the outer peripheral wall of the threaded rod, and the nut seat is located on both sides of the adjusting seat.

[0015] Preferably, one end of the extruding seat is rotatably connected with a rotating rod, the other end of the rotating rod is rotatably connected with a connecting seat, and the connecting seat is fixedly connected with the sliding rod.

[0016] The utility model discloses a kind of automobile stabilizer bar fatigue testing devices, it has the beneficial effects as follows:

[0017] The automobile stabilizer bar fatigue testing device, the spring connected with extruding seat exerts force to sliding rod, the deformation degree of spring is adjusted, the exerted force to sliding rod is changed, fatigue pressure test under different force is carried out, upward thrust is exerted to one side of stabilizer bar, downward pull is exerted to the other side of stabilizer bar, different direction force is simulated to both sides of stabilizer bar, fatigue test is carried out, simultaneously under the exerted force of spring, effectively avoid rigid extrusion to stabilizer bar, lead to the deformation of stabilizer bar influence subsequent measurement result, effectively avoid rigid extrusion to lead to the fracture of stabilizer bar. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0019] Fig. 1 It is the structure schematic view of the utility model;

[0020] Fig. 2 It is the structure schematic view of the other side of the utility model;

[0021] Fig. 3 It is the structure schematic view of the utility model push unit and transmission unit.

[0022] In the diagram: 1. Base; 2. Mounting seat; 201. Stabilizing rod; 3. Pushing unit; 301. Support seat; 302. Sliding rod; 303. Rotating seat; 304. Connecting seat; 305. Rotating rod; 4. Transmission unit; 401. Lead screw; 402. Pressing seat; 403. Adjusting seat; 404. Threaded rod; 405. Moving seat; 406. Spring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] This application provides a fatigue testing device for automotive stabilizer bars, solving the problem that when a servo motor starts and applies a rated load to the test connector, the test head moves and exerts a hard squeeze on the stabilizer bar, causing deformation that affects subsequent measurement results. Furthermore, excessive hard squeeze can lead to breakage, making the experiment impossible. The device achieves this by applying force to the sliding rod 302 via a spring 406 connected to the compression seat 402. By adjusting the deformation of the spring 406, the applied force to the sliding rod 302 is changed, allowing for fatigue pressure testing under different forces. An upward pushing force is applied to one side of the stabilizer bar 201, and a downward pulling force is applied to the other side, simulating forces applied to both sides of the stabilizer bar 201 in different directions for fatigue testing. Simultaneously, the force applied by the spring 406 effectively avoids hard squeeze on the stabilizer bar 201, preventing deformation that could affect subsequent measurement results and thus preventing breakage.

[0025] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0026] This utility model discloses a fatigue testing device for automotive stabilizer bars.

[0027] According to the appendix Figs. 1-3 As shown, it includes a base 1, a mounting base 2 fixedly connected to the base 1, a stabilizing rod 201 mounted on the mounting base 2, and the base 1 is provided with:

[0028] Multiple pushing units 3, each pushing unit 3 includes a support base 301 fixedly connected to the base 1, a sliding rod 302 slidably connected to the inner wall of the support base 301, a rotating seat 303 fixedly connected to the top end face of the sliding rod 302, the rotating seat 303 being rotatably connected to one end of the stabilizer 201, the sliding rod 302 driving the rotating seat 303 to move, applying pressure to the stabilizer 201, and performing a fatigue pressure test on the stabilizer 201;

[0029] Multiple transmission units 4 are included. Each transmission unit 4 includes a lead screw 401 rotatably connected to the inner wall of the support base 301. A pressing seat 402 is slidably connected to the inner wall of the lead screw 401. A spring 406 connected to the pressing seat 402 applies force to the sliding rod 302. By adjusting the deformation of the spring 406, the applied force to the sliding rod 302 is changed, and fatigue pressure tests are conducted under different forces. An upward pushing force is applied to one side of the stabilizer 201, and a downward pulling force is applied to the other side of the stabilizer 201, simulating the application of forces in different directions to the two sides of the stabilizer 201 for fatigue testing. At the same time, under the applied force of the spring 406, the stabilizer 201 is effectively prevented from being subjected to hard compression, which would cause deformation of the stabilizer 201 and affect the subsequent measurement results. The stabilizer is prevented from breaking due to hard compression.

[0030] One end of the lead screw 401 is fixedly fitted with a pulley, and the lead screw 401 rotates when the pulley is driven by the drive mechanism.

[0031] Multiple movable seats 405 are threadedly connected to the outer peripheral wall of the lead screw 401. The movable seats 405 are moved by rotating the lead screw 401.

[0032] A spring 406 is fixedly connected to the outer wall of the movable base 405.

[0033] The other end of the spring 406 is fixedly connected to an adjusting seat 403, which is slidably connected to the outer peripheral wall of the lead screw 401. The spring 406 is compressed by the movement of the moving seat 405, so that the spring 406 exerts a thrust on the threaded rod 404.

[0034] A threaded rod 404 is slidably connected to the inner wall of the adjusting seat 403, and the threaded rod 404 is fixedly connected to the pressing seat 402.

[0035] A nut seat is threaded onto the outer peripheral wall of the threaded rod 404. The nut seats are located on both sides of the adjusting seat 403. The adjusting seat 403 is fixedly connected to the adjusting seat 403 through the nut seats, thereby connecting the adjusting seat 403 to the pressing seat 402. By adjusting the distance between the adjusting seat 403 and the pressing seat 402, the pressure of the moving seat 405 on the pressing seat 402 is controlled, thereby changing the different forces applied to both sides of the stabilizing rod 201 and conducting different fatigue tests.

[0036] One end of the extrusion seat 402 is rotatably connected to a rotating rod 305, and the other end of the rotating rod 305 is rotatably connected to a connecting seat 304. The connecting seat 304 is fixedly connected to the sliding rod 302. When the lead screw 401 drives multiple moving seats 405 to move, the moving seats 405 push the spring 406 to compress, causing the spring 406 to push the extrusion seat 402 to apply a thrust. One of the extrusion seats 402 pushes the rotating rod 305 to move upward, which drives the connecting seat 304 to push the sliding rod 302 and the rotating seat 303 to push the stabilizing rod 201 to apply an upward thrust on one side.

[0037] Another compression seat 402 pulls the rotating rod 305 to move, causing the connecting seat 304 to pull the sliding rod 302 and the rotating seat 303 downward, applying a downward pulling force to the other side of the stabilizer 201, simulating the application of forces in different directions to both sides of the stabilizer 201, and conducting fatigue testing.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fatigue testing device for automotive stabilizer bars, characterized in that, Includes a base (1), on which a mounting base (2) is fixedly connected, and on which a stabilizing rod (201) is mounted, and the base (1) is provided with: Multiple pushing units (3), each pushing unit (3) includes a support base (301) fixedly connected to the base (1), a sliding rod (302) slidably connected to the inner wall of the support base (301), a rotating seat (303) fixedly connected to the top end face of the sliding rod (302), and the rotating seat (303) rotatably connected to one end of the stabilizing rod (201); Multiple transmission units (4), each transmission unit (4) includes a lead screw (401) rotatably connected to the inner wall of a support base (301), and a pressing seat (402) slidably connected to the inner wall of the lead screw (401).

2. The automobile stabilizer bar fatigue testing device according to claim 1, characterized in that, A pulley is fixedly sleeved at one end of the lead screw (401).

3. The automobile stabilizer bar fatigue testing device according to claim 2, characterized in that, The lead screw (401) has multiple movable seats (405) threadedly connected to its outer peripheral wall.

4. The automobile stabilizer bar fatigue testing device according to claim 3, characterized in that, A spring (406) is fixedly connected to the outer wall of the movable seat (405).

5. The automobile stabilizer bar fatigue testing device according to claim 4, characterized in that, The other end of the spring (406) is fixedly connected to an adjusting seat (403), which is slidably connected to the outer peripheral wall of the lead screw (401).

6. The automobile stabilizer bar fatigue testing device according to claim 5, characterized in that, A threaded rod (404) is slidably connected to the inner wall of the adjusting seat (403), and the threaded rod (404) is fixedly connected to the pressing seat (402).

7. The automobile stabilizer bar fatigue testing device according to claim 6, characterized in that, The threaded rod (404) has a nut seat threadedly connected to its outer peripheral wall, and the nut seat is located on both sides of the adjusting seat (403).

8. The automobile stabilizer bar fatigue testing device according to claim 7, characterized in that, One end of the extrusion seat (402) is rotatably connected to a rotating rod (305), and the other end of the rotating rod (305) is rotatably connected to a connecting seat (304). The connecting seat (304) is fixedly connected to the sliding rod (302).

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