Damper drum vibration durability test device

Abstract

The utility model relates to the technical field of shock absorber durability testing, and discloses a shock absorber drum vibration durability testing device, which is used for evaluating the durability and performance of a shock absorber by driving a drum to rotate through a motor, simulating the unevenness of a road surface and applying a periodic load to the shock absorber mounted on a tire. Protruding blocks on the rotary drum make contact with tires in the rotating process, and vibration is generated. The air cooling device is mounted on one side of the tire and is used for cooling the tire and keeping the temperature of the tire within a safe range, and heat is taken away by blowing cold air to the tire. A temperature measuring instrument is installed on the shock absorber and used for recording the temperature change of the shock absorber in the working process so as to evaluate the thermal stability of the shock absorber. The fixing device comprises a fixing seat and a balancing weight, and is used for fixing the tested shock absorber and simulating the rated static load of the motorcycle. Through the design, the stability and repeatability of the test can be ensured, and reliable data support is provided for design optimization of the shock absorber.

Description

Technical Field

[0001] The utility model belongs to the technical field of shock absorber durability testing, and particularly relates to a shock absorber drum vibration addition durability test device. Background Technique

[0002] The motorcycle shock absorber drum vibration addition durability test device is a test equipment that simulates the working state of the motorcycle shock absorber under actual driving conditions, and is mainly used to test the durability and performance of the shock absorber. In this test device, the drum plays the role of simulating road unevenness. During the durability test, the test device continuously loads the shock absorber according to the set parameters (such as vibration frequency, amplitude, load, etc.). By observing and detecting the performance changes of the shock absorber during the whole test process, its durability can be evaluated whether it meets the design requirements.

[0003] In the motorcycle shock absorber durability test, both the tire and the shock absorber will generate heat due to continuous vibration and load. If these heats cannot be effectively removed, the temperature of the tire will rise, which may lead to a decline in tire performance and even dangerous situations such as tire blowout. However, the current motorcycle shock absorber drum vibration addition durability test device lacks an air-cooling device for cooling the tire during the test to prevent the tire from being damaged due to long-term high-temperature operation.

[0004] In view of this, we propose a shock absorber drum vibration addition durability test device that blows cold air to the tire to help remove the heat on the tire surface to solve the above problems. Content of the Utility Model

[0005] The present invention aims to solve the technical problem that the tire is damaged due to long-term high-temperature operation in the above-mentioned prior art.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A shock absorber drum vibration addition durability test device, including a drum vibration addition durability testing machine and an air-cooling device. The drum on the drum vibration addition durability testing machine is driven by a motor to rotate. A convex block is provided on the surface of the drum. A fixing device for fixing the shock absorber to be tested is arranged on the vertical support of the drum vibration addition durability testing machine;

[0008] The convex block on the drum contacts the tire during rotation, and by simulating road unevenness, the tire is caused to vibrate.

[0009] The air-cooling device is installed on one side of the tire and is used to blow cold air to the tire to take away the heat on the tire surface. The air-cooling device includes a mounting frame and a fan mounted on the mounting frame.

[0010] An air-cooling device is usually used to cool the tire during the test to prevent the tire from being damaged due to long-term high-temperature operation.

[0011] Preferably, the motor is connected to the drum through a belt and pulley, a gearbox, or directly.

[0012] Preferably, a temperature measuring instrument for monitoring its own temperature change is installed on the shock absorber.

[0013] Preferably, the fixing device includes a fixing seat rotatably connected to the vertical bracket, and a counterweight for simulating the load applied to the shock absorber under the rated static load of the motorcycle is installed on the fixing seat.

[0014] Preferably, the U-shaped block on one side of the fixing seat is connected to the front shock absorber on the tire.

[0015] Preferably, a rotating connection seat A is provided at the bottom of the fixing seat, a connecting seat on the vertical bracket is rotatably provided with a support plate rotatably connected to the tire, a rotating connection seat B is provided on the support plate, and the rotating connection seat A and the rotating connection seat B are connected by a rear shock absorber.

[0016] Preferably, for the front shock absorber test, the height H of the drum bump is 30 mm or 40 mm, and the chord length L is 200 mm - 240 mm; for the rear shock absorber test, the height H of the drum bump is 20 mm or 30 mm, and the chord length L is 180 mm - 200 mm;

[0017] The circumferential speed of the drum for the front shock absorber is 15 km / h, and for the rear shock absorber is 10 km / h.

[0018] Compared with the prior art, the technical effects and advantages of the present utility model are as follows: In the drum vibration durability test device for the shock absorber, the drum vibration durability test machine drives the drum to rotate through a motor, and the bumps on the drum surface simulate road unevenness to apply a periodic load to the shock absorber on the tire. The air-cooling device is installed on one side of the tire to blow cold air to the tire, taking away the heat on the tire surface and keeping the tire temperature within a safe range. A temperature measuring instrument is installed on the shock absorber to monitor the temperature change of the shock absorber during operation and evaluate its thermal stability. The fixing device includes a fixing seat and a counterweight for fixing the shock absorber to be tested and simulating the rated static load of the motorcycle.

[0019] By simulating different road conditions and working environments, the durability and performance of the shock absorber are evaluated. The temperature of the shock absorber is monitored by a temperature measuring instrument to help optimize the shock absorber design and improve its thermal stability. The air cooling device protects the tire from excessive heat and ensures the continuity of the test. By simulating the test conditions of the front and rear shock absorbers, their performance and durability in actual work can be evaluated. The tire clamping device ensures that the tire remains stable during the test, thereby obtaining accurate and reliable test results. The design of the air cooling device improves cooling efficiency and helps protect the tire from excessive heat while maintaining consistency in test conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the drum vibration endurance test of the front shock absorber of the utility model;

[0021] Figure 2 The utility model is a schematic diagram of the structure of the rear shock absorber drum vibration endurance test.

[0022] In the figure: 1. Drum vibration endurance testing machine; 2. Drum; 3. Bump; 4. Vertical bracket; 5. Mounting frame; 6. Fan; 8. Fixed seat; 9. Counterweight; 10. U-shaped block; 11. Tire; 12. Front shock absorber; 13. Rotating connecting seat A; 14. Support plate; 15. Rotating connecting seat B; 16. Rear shock absorber. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] A shock absorber rotary vibration durability test device, comprising a rotary vibration durability test machine 1 and an air cooling device, wherein a rotary drum 2 on the rotary vibration durability test machine 1 is driven to rotate by a motor, a convex block 3 is provided on the surface of the rotary drum 2, and a fixing device for fixing the shock absorber to be tested is provided on a vertical bracket 4 of the rotary vibration durability test machine 1;

[0026] The air cooling device is installed on one side of the tire 11 and is used to blow cold air to the tire 11 to remove the heat from the surface of the tire 11 . The air cooling device includes a mounting frame 5 and a fan 6 installed on the mounting frame 5 .

[0027] The motor is connected to the drum 2 through a belt and pulley, gearbox, or directly. The motor provides rotational power. Motors with different powers and speeds can be selected according to the design of the test machine and the required rotational speed. The rotation of the motor can be adjusted by a controller to simulate different road conditions and working environments.

[0028] A temperature measuring instrument 7 for monitoring its own temperature change is installed on the shock absorber. The temperature measuring instrument 7 is used to monitor and record the temperature change of the shock absorber during operation, which can help evaluate the thermal stability of the shock absorber after long-term operation.

[0029] The fixing device includes a fixing seat 8 rotatably connected to the vertical bracket 4. A counterweight 9 for simulating the load applied to the shock absorber under the rated static load of the motorcycle is installed on the fixing seat 8. The fixing device is used to fix the shock absorber to be tested so that it can freely compress and rebound during the test, simulating the actual working state;

[0030] The U-shaped block 10 on one side of the fixing seat 8 is connected to the front shock absorber 12 on the tire 11. For the front shock absorber 12 test, the height H of the convex block 3 of the drum 2 is 30 mm or 40 mm, the chord length L is 200 mm - 240 mm, and the circumferential speed of the drum 2 for the front shock absorber 12 is 15 km / h.

[0031] Embodiment 2

[0032] As Figure 2 shown, on the basis of Embodiment 1, the difference from Embodiment 1 is that: the fixing device includes a fixing seat 8 rotatably connected to the vertical bracket 4. A counterweight 9 for simulating the load applied to the shock absorber under the rated static load of the motorcycle is installed on the fixing seat 8. A rotating connection seat A13 is provided at the bottom of the fixing seat 8. A support plate 14 rotatably connected to the tire 11 is rotatably provided on the connection seat of the vertical bracket 4. A rotating connection seat B15 is provided on the support plate 14. The rotating connection seat A13 and the rotating connection seat B15 are connected by a rear shock absorber 16.

[0033] The rotating connection seat A13, the support plate 14, and the rotating connection seat B15 form a clamping device for the tire 11, which is used to fix and support the motorcycle tire 11 to be tested to ensure that the tire 11 maintains the correct position and angle during the test.

[0034] For the rear shock absorber 16 test, the height H of the convex block 3 of the drum 2 is 20 mm or 30 mm, the chord length L is 180 mm - 200 mm; the circumferential speed of the drum 2 for the rear shock absorber 16 is 10 km / h.

[0035] During the rotation of the drum 2, the bump 3 on the drum contacts the tire 11, simulating the road surface unevenness to cause the tire 11 to vibrate. When the tire 11 rotates, the contact between the bump 3 and the tire 11 generates an impact, thereby applying a periodic load to the shock absorber installed on the tire 11. Such a test can simulate various road conditions encountered during the actual driving of a motorcycle to ensure that the shock absorber can work properly under these conditions and has sufficient durability.

[0036] An air-cooling device is usually used to cool the tire 11 during the test to prevent the tire 11 from being damaged due to long-term high-temperature operation. The air-cooling device blows cold air towards the tire 11 to help remove the heat on the surface of the tire 11, thereby keeping the temperature of the tire 11 within a safe range. This can ensure the continuous progress of the test while protecting the tire 11 from the influence of excessive heat. The design of the air-cooling device can ensure that the cooling air acts directly on the side of the tire 11 to improve the cooling efficiency. The air-cooling device also helps to keep the air pressure of the tire 11 stable during the test because temperature changes will affect the air pressure of the tire 11. By maintaining a constant air pressure, the consistency of the test conditions can be ensured, thus obtaining accurate and reliable test results. It is used to manage and adjust various parameters of the testing machine, such as the speed of the drum 2, the frequency and amplitude of vibration, etc. This is usually achieved by the cooperation of the control system and computer software, which can monitor the test data in real time and analyze it.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A shock absorber drum vibration durability test device, characterized in that: include: A rotary drum vibration endurance testing machine (1), wherein a rotary drum (2) on the rotary drum vibration endurance testing machine (1) is driven to rotate by a motor, a convex block (3) is provided on the surface of the rotary drum (2), and a fixing device for fixing the shock absorber to be tested is provided on a vertical support (4) of the rotary drum vibration endurance testing machine (1); An air cooling device is installed on one side of the tire (11) and is used to blow cold air to the tire (11) to remove heat from the surface of the tire (11). The air cooling device comprises a mounting frame (5) and a fan (6) installed on the mounting frame (5).

2. The shock absorber rotary drum vibration durability test device according to claim 1, characterized in that: The motor and the rotating drum (2) are connected via a belt and a pulley, a gear box or directly.

3. The shock absorber rotary drum vibration durability test device according to claim 1, characterized in that: The fixing device comprises a fixing seat (8) rotatably connected to the vertical bracket (4), and a counterweight block (9) is installed on the fixing seat (8) for simulating the load applied to the shock absorber under the rated static load of the motorcycle.

4. The shock absorber rotary drum vibration durability test device according to claim 3, characterized in that: A U-shaped block (10) on one side of the fixing seat (8) is connected to a front shock absorber (12) on a tire (11).

5. The shock absorber rotary drum vibration durability test device according to claim 3, characterized in that: A rotatable connecting seat A (13) is provided at the bottom of the fixed seat (8), a supporting plate (14) rotatably connected to the tire (11) is rotatably provided on the connecting seat on the vertical bracket (4), a rotatable connecting seat B (15) is provided on the supporting plate (14), and the rotatable connecting seat A (13) and the rotatable connecting seat B (15) are connected via a rear shock absorber (16).

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