A shock absorber fatigue testing device

Abstract

The utility model relates to the technical field of shock absorber testing device, concretely speaking is a kind of shock absorber fatigue testing device. Including device shell, the inside of device shell is equipped with two detection parts and two oppositely arranged guide parts, two detection parts are horizontally parallelly connected between two guide parts, and the shock absorber to be detected is vertically connected between two detection parts;The inside of device shell is equipped with driving motor, the output shaft of driving motor is equipped with driving cam, and the detection part is equipped with connecting wheel, and the connecting wheel is oppositely contacted with the driving cam Set. Through the cooperation of the horizontally parallelly arranged two detection parts and guide parts, the bidirectional synchronous fatigue test of shock absorber is realized, the actual stress state is more truly simulated, and the reliability of test result is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of shock absorber testing devices, specifically a shock absorber fatigue testing device. Background Technology

[0002] Shock absorbers, as crucial buffer components in mechanical systems, are widely used in automobiles, aerospace, and industrial equipment. Their fatigue performance directly impacts product lifespan and safety. Traditional shock absorber fatigue testing typically employs unidirectional loading or simple cyclic loading methods, which struggle to simulate the complex multi-directional, high-frequency stress states encountered in actual operating conditions. Furthermore, existing testing devices often suffer from complex structures, inconvenient adjustments, and low testing efficiency, failing to meet the rapid testing needs of various shock absorber specifications. Especially for scenarios requiring simultaneous testing of multiple shock absorbers or different installation angles, existing equipment lacks flexible modular design, resulting in high testing costs and poor adaptability. Therefore, there is an urgent need for a compact, easy-to-operate fatigue testing device that can adapt to various shock absorber specifications to improve testing efficiency and data accuracy. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a fatigue testing device for shock absorbers.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a shock absorber fatigue testing device, including a device shell, the inside of which are configured two detection parts and two oppositely arranged guide parts, the two detection parts are horizontally parallel and connected between the two guide parts, and the shock absorber to be tested is vertically connected between the two detection parts; The device housing contains a drive motor, the output shaft of which is equipped with a drive cam. The detection part is equipped with a connecting wheel, which is in contact with the drive cam.

[0005] As an optimization, the guiding part includes a guide rod, and the end of the detection part is provided with a guide block. The guide block has a guide hole and is slidably connected to the guide rod.

[0006] As an optimization, the detection section includes a horizontally arranged connecting frame, the lower part of which is detachably equipped with a connecting rod, and the connecting rod is equipped with a plurality of connecting seats, which are used to connect the shock absorber to be tested; The lower part of the connecting frame is provided with a guide groove, and the end of the connecting rod is provided with a guide slider, which is slidably connected to the guide groove.

[0007] As an optimization, a connection port is provided in the middle of the connecting frame, and the connecting wheel is rotatably connected to the inside of the connection port.

[0008] As an optimization, the drive motor is located outside the two detection sections, and the axis of the drive motor is arranged parallel to the axis of the detection section.

[0009] As an optimization, the connecting seat is prismatic, and the two ends of the shock absorber to be tested are provided with connecting blocks. The connecting blocks have connecting holes and are sleeved on the connecting seat.

[0010] The beneficial effects of this plan are as follows: By cooperating with the guide section and the two horizontally parallel detection sections, bidirectional synchronous fatigue testing of the shock absorber is achieved, which more realistically simulates the actual stress state and improves the reliability of the test results. The drive motor transmits power through the cam-connecting wheel structure, which simplifies the transmission chain, reduces energy loss, and ensures the stability of high-frequency cyclic loading, making it suitable for long-term fatigue testing. The connecting rod and connecting frame of the detection section adopt a detachable sliding connection structure (guide groove and guide slider), which supports quick replacement of shock absorbers of different specifications, adapts to the installation requirements of various shock absorbers, and has strong expandability. Attached Figure Description

[0011] Figure 1 This is an axonometric view of the present invention.

[0012] Figure 2 This utility model Figure 1 A magnified structural diagram of part A.

[0013] Figure 3 This is a schematic diagram of the front view of this utility model.

[0014] The components are: 1. Device housing; 2. Shock absorber to be tested; 3. Drive motor; 4. Connecting wheel; 5. Drive cam; 6. Guide rod; 7. Guide block; 8. Connecting frame; 9. Connecting rod; 10. Connecting seat; 11. Guide slider. Detailed Implementation

[0015] like Figures 1-3 As shown, a shock absorber fatigue testing device includes a device housing 1. The device housing 1 is internally configured with two detection parts and two oppositely arranged guide parts. The two detection parts are horizontally parallel and connected between the two guide parts. The shock absorber 2 to be tested is vertically connected between the two detection parts. The device housing 1 is equipped with a drive motor 3, the output shaft of the drive motor 3 is equipped with a drive cam 5, the detection part is equipped with a connecting wheel 4, and the connecting wheel 4 is arranged in relative contact with the drive cam 5.

[0016] A fixing frame is provided on the inner side of the device housing 1 to fix the drive motor 3. The large-diameter part of the drive cam 5 is coaxially connected to the drive motor 3. The wheel axle of the connecting wheel 4 is connected to the detection part through a bearing.

[0017] Two guide sections are vertically arranged inside the device housing 1 to guide the detection sections, enabling the two detection sections to move up and down along the guide sections.

[0018] like Figure 1 As shown, the guiding part includes a guide rod 6, and the end of the detection part is provided with a guide block 7. The guide block 7 has a guide hole and is slidably connected to the guide rod 6.

[0019] At least two guide rods 6 are provided on the same side and are stably connected to the guide block 7. Lubricating oil can be filled between the guide block 7 and the guide rods 6.

[0020] like Figure 1 and Figure 2 As shown, the detection part includes a horizontally arranged connecting frame 8, and a connecting rod 9 is detachably configured on the lower part of the connecting frame 8. The connecting rod 9 is configured with a plurality of connecting seats 10, and the connecting seats 10 are used to connect the shock absorber 2 to be tested. The lower part of the connecting frame 8 is provided with a guide groove, and the end of the connecting rod 9 is provided with a guide slider 11, which is slidably connected to the guide groove.

[0021] The shock absorber 2 to be tested is vertically connected between the connecting rods 9 of the two testing parts. A limiting ring or limiting nut can be connected to the connecting rod 9 to limit the connection position of the shock absorber 2 to be tested. The connecting seat 10 can be fixed or movably set on the connecting rod 9. The connecting seat 10 can be replaced according to the size of the shock absorber 2 to be tested.

[0022] like Figure 1 As shown, the connecting frame 8 has a connecting port in the middle, and the connecting wheel 4 is rotatably connected to the inside of the connecting port.

[0023] The connection port is located in the middle of the connecting frame 8, which enables the connecting frame 8 to be stably stressed.

[0024] like Figure 1 and Figure 3 As shown, the drive motor 3 is located outside the two detection parts, and the axis of the drive motor 3 is arranged parallel to the axis of the detection part.

[0025] like Figure 1 As shown, the connecting seat 10 is prismatic, and the two ends of the shock absorber 2 to be tested are provided with connecting blocks. The connecting blocks have connecting prism holes and are sleeved on the connecting seat 10.

[0026] The shape of the connector 10 corresponds to and is the same as that of the connector prism hole.

[0027] In practical use, the device is first connected to the connecting rod 9 so that the end of the shock absorber 2 to be tested is sleeved on the connecting seat 10. Connect the guide sliders 11 at both ends of the connecting rod 9 to the connecting frame 8, and lock the position of the guide sliders 11 with bolts; During the test, the guide cam is driven to rotate by the drive motor 3. The guide cam is always in contact with the connecting wheel 4. When it rotates, it pushes the detection part to move instantaneously along the guide part. The two drive motors 3 operate at the same time, and force is applied to both ends of the shock absorber 2 under test at the same time. The deformation and fatigue performance of the shock absorber under bidirectional load are observed.

[0028] This application may also include mechanical sensors and displacement sensors to collect data in real time. The specific installation method is based on the usage habits and needs of those skilled in the art, and will not be elaborated here.

[0029] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the product form and style of the above-described specific embodiments. Any shock absorber fatigue testing device that conforms to the claims of this utility model and any appropriate changes or modifications made to it by a person skilled in the art should fall within the patent protection scope of this utility model.

Claims

1. A fatigue testing device for shock absorbers, comprising a housing (1), characterized in that: The device housing (1) is internally configured with two detection parts and two oppositely arranged guide parts. The two detection parts are horizontally parallel and connected between the two guide parts. The shock absorber (2) to be tested is vertically connected between the two detection parts. The device housing (1) is equipped with a drive motor (3), the output shaft of the drive motor (3) is equipped with a drive cam (5), the detection part is equipped with a connecting wheel (4), and the connecting wheel (4) is arranged in relative contact with the drive cam (5).

2. The damper fatigue testing device according to claim 1, characterized in that: The guiding part includes a guide rod (6), and the end of the detection part is provided with a guide block (7). The guide block (7) has a guide hole and is slidably connected to the guide rod (6).

3. The damper fatigue testing device according to claim 1, characterized in that: The detection section includes a horizontally arranged connecting frame (8), and a connecting rod (9) is detachably configured on the lower part of the connecting frame (8). The connecting rod (9) is configured with a plurality of connecting seats (10), and the connecting seats (10) are used to connect the shock absorber (2) to be tested. The lower part of the connecting frame (8) is provided with a guide groove, and the end of the connecting rod (9) is provided with a guide slider (11), which is slidably connected to the guide groove.

4. The damper fatigue testing device according to claim 3, characterized in that: The connecting frame (8) has a connecting port in the middle, and the connecting wheel (4) is rotatably connected to the inside of the connecting port.

5. The damper fatigue testing device according to claim 1, characterized in that: The drive motor (3) is located outside the two detection parts, and the axis of the drive motor (3) is parallel to the axis of the detection part.

6. The damper fatigue testing device according to claim 3, characterized in that: The connecting seat (10) is prismatic, and the two ends of the shock absorber (2) to be tested are provided with connecting blocks. The connecting blocks are provided with connecting prism holes and are sleeved on the connecting seat (10).

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