Device for testing fatigue performance of round-link chain

By designing a sliding fit between the slide plate and the limiting plate, and a hydraulic telescopic rod drive, the problem of the circular chain falling off during testing was solved, achieving effective limiting of the circular chain and accurate recording of tension data, thus ensuring the reliability of the test.

CN224163351UActive Publication Date: 2026-04-24SHANDONG ZHONGLIAN MINING MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ZHONGLIAN MINING MASCH CO LTD
Filing Date
2025-06-24
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In existing technologies, during fatigue performance testing, the circular link chain is prone to slippage of the clamping plate due to slippage of the jaw seat, causing the circular link chain to fall off, affecting the accuracy of the test data, and failing to effectively limit the movement.

Method used

A device for testing the fatigue performance of a circular link chain was designed, including a testing platform, a hydraulic telescopic rod, a tension sensor, and a sliding engagement between a sliding plate and a limiting plate. The hydraulic telescopic rod drives the main testing plate to move, and the connecting hook to move. The tension sensor records data and transmits it to the operation panel via a data cable. The sliding engagement between the sliding plate and the limiting plate closes the circular link chain to prevent it from falling.

Benefits of technology

It effectively limits the circular chain during the testing process, preventing it from falling and ensuring the accuracy of the test data. It also records the tensile data through a tensile sensor, which is convenient for observation and analysis.

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Abstract

The utility model discloses a device for testing the fatigue performance of a round-link chain, which belongs to the technical field of testing the fatigue performance of the round-link chain and comprises a detection table and a hydraulic telescopic rod arranged on the detection table, a tension sensor is arranged at the output end of the hydraulic telescopic rod, a main detection plate is arranged on the tension sensor, and an auxiliary detection plate is arranged on the detection table. The auxiliary detection plate and the main detection plate are both provided with connecting hooks, the main detection plate and the auxiliary detection plate are both provided with sliding plates in a sliding mode, and the sliding plates are provided with limiting plates. According to the fatigue performance testing device for the round-link chain, the sliding plate is in sliding fit with the limiting plate, the round-link chain is hung on the sliding plate, the sliding plate slides to seal the limiting plate, the round-link chain is not prone to falling off, the hydraulic telescopic rod is started to drive the main detection plate to move, then the connecting hook is driven to move, and the fatigue performance of the round-link chain is tested; tension data can be recorded and transmitted to an operation panel through a data line, and a worker observes the tension data.
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Description

Technical Field

[0001] This utility model relates to a device for testing the fatigue performance of circular link chains, and belongs to the technical field of fatigue performance testing of circular link chains. Background Technology

[0002] Circular link chains are widely used in navigation, mining, industrial cranes and other fields. Before use, the fatigue performance of the circular link chains needs to be tested.

[0003] According to utility model application number 202023283005.X, a device for testing the fatigue performance of a circular link chain is disclosed. It includes two sets of mounting components that are symmetrically mounted inside the chain links at both ends of the circular link chain and externally connected to a hydraulic universal testing machine to achieve rapid connection and fixation between the circular link chain and the hydraulic universal testing machine. In actual use, when the jaw seat is pulled, the clamping plate is prone to sliding on the jaw seat, which can cause the circular link chain to fall off easily, thus affecting the test data and making it difficult to limit the circular link chain. Utility Model Content

[0004] The main purpose of this invention is to solve the problem of the inconvenience of limiting the position of a circular link chain, and to provide a device for testing the fatigue performance of a circular link chain.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] An apparatus for testing the fatigue performance of a circular link chain includes a testing platform and a hydraulic telescopic rod mounted on the testing platform. A tension sensor is installed at the output end of the hydraulic telescopic rod. A main testing plate is installed on the tension sensor. An auxiliary testing plate is installed on the testing platform. A connecting hook is installed on both the auxiliary testing plate and the main testing plate. A sliding plate is slidably mounted on both the main testing plate and the auxiliary testing plate. A limit plate is installed on the sliding plate.

[0007] Preferably, the testing platform is equipped with a base leg, one end of which is equipped with a support frame, and a hydraulic telescopic rod is installed on the support frame.

[0008] Preferably, a guide rod is installed on the testing platform, a guide ring is slidably installed on the guide rod, a first connecting rod is installed on the guide ring, one end of the first connecting rod is connected to the main testing plate, a support ring is installed on the guide rod, a support rod is installed on the support ring, an auxiliary testing plate is installed at one end of the support rod, and the support ring is welded to the auxiliary testing plate.

[0009] Preferably, a movable rod is mounted on the auxiliary detection plate, a movable ring is slidably mounted on the movable rod, a second connecting rod is mounted on the movable ring, one end of the second connecting rod is connected to the slide plate, and the movable ring is connected to the movable rod by a spring.

[0010] Preferably, the skateboard is equipped with a first grip, and the first grip is equipped with a second anti-slip pad.

[0011] Preferably, the bottom of the testing platform is equipped with multiple support legs, and the bottom of each support leg is equipped with a third anti-slip pad.

[0012] Preferably, a support column is installed on the testing platform, a slide is installed at one end of the support column, and an operation panel is slidably installed on the slide.

[0013] Preferably, a slide bar is installed on the slide carriage, and a slider is installed on the operation panel. The slider has a sliding hole that cooperates with the slide bar.

[0014] Preferably, an auxiliary magnet is mounted on the slider, and a main magnet that cooperates with the auxiliary magnet is mounted on the carriage.

[0015] Preferably, a second grip is installed on the operation panel, and a second anti-slip pad is installed on the second grip.

[0016] The beneficial technical effects of this utility model are as follows:

[0017] 1. The device for testing the fatigue performance of a circular link chain according to this utility model, by setting a sliding plate and a limiting plate to slide together, hangs the circular link chain on the sliding plate, and the sliding plate closes the limiting plate, which can prevent the circular link chain from falling off.

[0018] 2. The hydraulic telescopic rod starts and moves the main detection plate, which in turn moves the connecting hook to perform fatigue performance testing on the circular chain. By setting up a tension sensor, the tension data can be recorded and transmitted to the operation panel via a data cable for observation by the staff. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the operation panel structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the support ring structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting plate structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the slide bar structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the slider structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the main magnet structure of this utility model.

[0026] In the diagram: 1. Testing platform; 2. Support leg; 3. Guide rod; 4. Main testing plate; 5. First connecting rod; 6. Guide ring; 7. Support ring; 8. Support rod; 9. Auxiliary testing plate; 10. Connecting hook; 11. Slide plate; 12. Limiting plate; 14. First grip; 15. Moving ring; 16. Second connecting rod; 17. Moving rod; 18. Spring; 19. Tension sensor; 20. Hydraulic telescopic rod; 21. Support frame; 22. Base leg; 23. Carriage; 24. Operation panel; 25. Support column; 26. Slide rod; 27. Second grip; 28. Main magnet; 29. ​​Slider; 30. Auxiliary magnet. Detailed Implementation

[0027] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0028] like Figures 1-7 As shown, the device for testing the fatigue performance of a circular link chain provided in this embodiment includes a testing platform 1 and a hydraulic telescopic rod 20 installed on the testing platform 1. A tension sensor 19 is installed at the output end of the hydraulic telescopic rod 20, and a main testing plate 4 is installed on the tension sensor 19. An auxiliary testing plate 9 is installed on the testing platform 1. A connecting hook 10 is installed on both the auxiliary testing plate 9 and the main testing plate 4. A sliding plate 11 is slidably installed on both the main testing plate 4 and the auxiliary testing plate 9. A limit plate 12 is installed on the sliding plate 11. A support column 25 is installed on the testing platform 1, and a slide 23 is installed at one end of the support column 25. The slide 23 slides on the slide 23. The control panel 24 is installed. By setting the sliding plate 11 and the limiting plate 12 to slide together, the circular chain is hung on the sliding plate 11. The sliding plate 11 closes the limiting plate 12, which can prevent the circular chain from falling off. The hydraulic telescopic rod 20 is activated to drive the main detection plate 4 to move, which in turn drives the connecting hook 10 to move, so as to perform fatigue performance testing on the circular chain. By setting the tension sensor 19, the tension data can be recorded and transmitted to the control panel 24 via the data cable for the operator to observe. The sliding frame 23 and the support column 25 cooperate with each other to facilitate the support of the control panel 24.

[0029] In this embodiment, as Figure 1 , Figure 3 and Figure 4As shown, the testing platform 1 is equipped with a base leg 22, and a support frame 21 is installed at one end of the base leg 22. A hydraulic telescopic rod 20 is installed on the support frame 21. By setting the base leg 22 and the support frame 21 to cooperate with each other, the hydraulic telescopic rod 20 can be easily supported. The testing platform 1 is equipped with a guide rod 3, and a guide ring 6 is slidably installed on the guide rod 3. A first connecting rod 5 is installed on the guide ring 6, and one end of the first connecting rod 5 is connected to the main testing plate 4. A support ring 7 is installed on the guide rod 3, and a support rod 8 is installed on the support ring 7. An auxiliary testing plate 9 is installed at one end of the support rod 8. The support ring 7 is welded to the auxiliary testing plate 9. By setting the guide ring 6 to slide on the guide rod 3, the main testing plate 4 can be easily guided and limited. A moving rod 17 is installed on the auxiliary testing plate 9, and a moving ring 15 is slidably installed on the moving rod 17. A second connecting rod 16 is installed on the moving ring 15, and one end of the second connecting rod 16 is connected to the slide plate. 11. The moving ring 15 is connected to the moving rod 17 via the spring 18. By setting the spring 18, when the slide plate 11 is released, the spring 18 extends, thereby causing the moving ring 15 to slide on the moving rod 17. The limiting plate 12 closes the connecting hook 10, thereby limiting the circular chain hanging on the connecting hook 10. By setting the moving ring 15 and the moving rod 17 to cooperate with each other, the limiting plate 12 can be easily guided and limited. A first handle 14 is installed on the slide plate 11, and a second anti-slip pad is installed on the first handle 14. By setting the first handle 14, the slide plate 11 can be easily pulled. By setting the second anti-slip pad, the friction of the first handle 14 can be easily increased. Multiple support legs 2 are installed at the bottom of the testing platform 1. A third anti-slip pad is installed at the bottom of the support legs 2. By setting the support legs 2, the testing platform 1 can be easily supported. By setting the third anti-slip pad, the friction of the support legs 2 can be easily increased.

[0030] In this embodiment, as Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, a slide rod 26 is installed on the slide 23, and a slider 29 is installed on the operation panel 24. The slider 29 has a sliding hole that cooperates with the slide rod 26. By setting the slider 29 and the slide rod 26 to slide together, the operation panel 24 can be easily slid under the detection table 1. When the operation panel 24 is not in use, it can be stored and protected, making it less susceptible to damage from collisions. An auxiliary magnet 30 is installed on the slider 29, and a main magnet 28 that cooperates with the auxiliary magnet 30 is installed on the slide 23. By setting the auxiliary magnet 30 and the main magnet 28 to cooperate, the sliding operation panel 24 can be easily stopped. A second grip 27 is installed on the operation panel 24, and a second anti-slip pad is installed on the second grip 27. By setting the second grip 27, the operation panel 24 can be easily pulled. By setting the second anti-slip pad, the friction of the second grip 27 can be increased.

[0031] In this embodiment, as Figures 1-7 As shown in the figure, the working process of the device for testing the fatigue performance of a circular link chain provided in this embodiment is as follows:

[0032] Step 1: Hang the circular chain on the connecting hook 10, release the slide plate 11, the spring 18 extends, and thus drives the moving ring 15 to slide on the moving rod 17. The limiting plate 12 closes the connecting hook 10, thereby limiting the circular chain hanging on the connecting hook 10.

[0033] Step 2: Pull the operation panel 24 to slide the support frame 21 out from under the testing table 1;

[0034] Step 3: The hydraulic telescopic rod 20 is activated, which drives the main detection plate 4 to move, and then drives the connecting hook 10 to move, so as to perform fatigue performance testing on the circular chain. The tensile data is recorded by the tensile sensor 19 and transmitted to the operation panel 24 via the data cable for observation by the staff.

[0035] In summary, in this embodiment, the device for testing the fatigue performance of a circular link chain uses a sliding plate 11 and a limiting plate 12 to slide together, allowing the circular link chain to be hung on the sliding plate 11. The sliding plate 11 closes the limiting plate 12, preventing the circular link chain from falling off. The hydraulic telescopic rod 20 is activated, moving the main detection plate 4, which in turn moves the connecting hook 10, thus performing a fatigue performance test on the circular link chain. A tension sensor 19 records the tension data, which is transmitted to the operation panel 24 via a data cable for observation by the operator. The sliding frame 23 and support column 25 cooperate to support the operation panel 24. The base leg 22 and support frame 21 cooperate to support the hydraulic telescopic rod 20. The guide ring 6 and guide rod 3 are slidably connected, guiding and limiting the main detection plate 4. A spring 18 is used; when the sliding plate 11 is released, the spring 18 extends, causing the moving ring 15 to slide on the moving rod 17. The limiting plate 12 then closes the connecting hook 10. The hook 10 is closed, thereby limiting the circular chain hanging on the connecting hook 10. The movable ring 15 and the movable rod 17 cooperate to guide and limit the limiting plate 12. The first grip 14 makes it easy to pull the slide plate 11. The second anti-slip pad increases the friction of the first grip 14. The support leg 2 supports the detection table 1. The third anti-slip pad increases the friction of the support leg 2. The slider 29 and the slide rod 26 are slidably connected, making it easy to slide the operation panel 24 under the detection table 1. When the operation panel 24 is not in use, it can be stored and protected, making it less susceptible to damage from collisions. The auxiliary magnet 30 and the main magnet 28 cooperate to limit the sliding operation panel 24. The second grip 27 makes it easy to pull the operation panel 24. The second anti-slip pad increases the friction of the second grip 27.

[0036] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0037] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0038] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An apparatus for testing the fatigue performance of a circular link chain, characterized in that, The device includes a testing platform (1) and a hydraulic telescopic rod (20) installed on the testing platform (1). A tension sensor (19) is installed at the output end of the hydraulic telescopic rod (20). A main testing plate (4) is installed on the tension sensor (19). An auxiliary testing plate (9) is installed on the testing platform (1). A connecting hook (10) is installed on both the auxiliary testing plate (9) and the main testing plate (4). A sliding plate (11) is slidably installed on both the main testing plate (4) and the auxiliary testing plate (9). A limit plate (12) is installed on the sliding plate (11).

2. The apparatus for testing the fatigue performance of a circular link chain according to claim 1, characterized in that, The testing platform (1) is equipped with a base leg (22), and a support frame (21) is installed at one end of the base leg (22). A hydraulic telescopic rod (20) is installed on the support frame (21).

3. The apparatus for testing the fatigue performance of a circular link chain according to claim 1, characterized in that, A guide rod (3) is installed on the testing platform (1). A guide ring (6) is slidably installed on the guide rod (3). A first connecting rod (5) is installed on the guide ring (6). One end of the first connecting rod (5) is connected to the main testing plate (4). A support ring (7) is installed on the guide rod (3). A support rod (8) is installed on the support ring (7). An auxiliary testing plate (9) is installed at one end of the support rod (8). The auxiliary testing plate (9) is welded to the support ring (7).

4. The apparatus for testing the fatigue performance of a circular link chain according to claim 1, characterized in that, A movable rod (17) is installed on the auxiliary detection plate (9). A movable ring (15) is slidably installed on the movable rod (17). A second connecting rod (16) is installed on the movable ring (15). One end of the second connecting rod (16) is connected to the slide plate (11). The movable ring (15) is connected to the movable rod (17) by a spring (18).

5. The apparatus for testing the fatigue performance of a circular link chain according to claim 4, characterized in that, The skateboard (11) is equipped with a first grip (14), and a second anti-slip pad is installed on the first grip (14).

6. The apparatus for testing the fatigue performance of a circular link chain according to claim 1, characterized in that, The bottom of the testing platform (1) is equipped with multiple support legs (2), and the bottom of the support legs (2) is equipped with a third anti-slip pad.

7. The apparatus for testing the fatigue performance of a circular link chain according to claim 1, characterized in that, The testing platform (1) is equipped with a support column (25), and a slide (23) is installed at one end of the support column (25). An operation panel (24) is slidably installed on the slide (23).

8. The apparatus for testing the fatigue performance of a circular link chain according to claim 7, characterized in that, A slide rod (26) is installed on the slide (23), and a slider (29) is installed on the operation panel (24). The slider (29) has a sliding hole that cooperates with the slide rod (26).

9. The apparatus for testing the fatigue performance of a circular link chain according to claim 8, characterized in that, An auxiliary magnet (30) is installed on the slider (29), and a main magnet (28) that cooperates with the auxiliary magnet (30) is installed on the carriage (23).

10. The apparatus for testing the fatigue performance of a circular link chain according to claim 9, characterized in that, The operation panel (24) is equipped with a second grip (27), and the second grip (27) is equipped with a second anti-slip pad.

Citation Information

Patent Citations

  • Device for testing fatigue performance of round-link chain

    CN213812870U