An apparatus for fatigue testing the elastic properties of an elastic webbing

Abstract

The utility model discloses a kind of equipment to the elastic performance fatigue resistance test of elastic fabric belt, belong to fabric belt testing equipment technical field, comprising: box;Box is provided with two groups of sliding slot groups corresponding to be set up in upper and lower;Box inside is provided with sliding seat;Sliding seat is provided with slide rail;Two sliding blocks are slidably arranged on slide rail, and mounting plate is provided on sliding block;Two support rods are provided on mounting plate;Support rod is extended to the outside of box by sliding slot.This utility model uses, connects as annular, is set on the upper and lower two support rods, is moved by motor driving support rod, realizes elastic performance fatigue resistance test, simple structure and stable, using box insulation transmission mechanism and fabric belt, can improve safety.Motor connection control device, can control stretching frequency and support rod displacement amplitude, cycle number and other parameters by control device, improve the applicability of test equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of webbing testing equipment, specifically to a device for testing the fatigue resistance of elastic webbing. Background Technology

[0002] Elastic webbing is widely used in various fields due to its excellent elasticity. The fatigue resistance of its elastic properties directly affects the service life and quality of products; therefore, fatigue testing of elastic webbing is crucial. Existing equipment suffers from poor stability during testing. Due to unreasonable structural design or insufficient component precision, it is easily affected by external factors, leading to inaccurate results. Furthermore, the test parameters of existing equipment are not adjustable, making it difficult to flexibly adjust parameters such as frequency and stroke according to different materials and specifications of elastic webbing, thus failing to meet diverse testing needs and limiting the application range of the equipment. Therefore, this utility model provides a device for testing the fatigue resistance of elastic webbing. Utility Model Content

[0003] The purpose of this invention is to provide a device for testing the fatigue resistance of elastic webbing.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0005] A device for testing the fatigue resistance of elastic webbing elastic properties includes: a housing; the housing has two sets of sliding slots arranged vertically and vertically; the sliding slots include a plurality of sliding slots evenly distributed along the length of the housing.

[0006] The housing is equipped with several sliding seats; each sliding seat corresponds to two sliding slots and is positioned between the two sliding slots; each sliding seat is equipped with a slide rail; two sliding blocks are slidably mounted on the slide rail; each sliding block corresponds to two sets of sliding slots, and each sliding block is equipped with a mounting plate; two support rods are mounted on the mounting plate; the support rods extend from the sliding slots to the outside of the housing.

[0007] A motor is installed at the bottom of the sliding seat; the motor is connected to a lead screw installed on the sliding seat; the surface of the lead screw has two sets of threads in different directions, which respectively engage with the threads of the two sliding blocks to achieve synchronous reverse movement of the two sliding blocks.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme, the mounting plate is U-shaped, with the middle part fixedly connected to the sliding block, and two sliding slots corresponding to the two sides. The mounting plate also has through slots on both sides corresponding to the sliding slots. The support rod is slidably connected in the through slots.

[0009] Based on the above scheme and as a preferred embodiment, the support rod is fixedly connected to the mounting plate by a nut.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme, two clamping plates are provided on the stage where the support rod is located outside the box body.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme, an extreme position sensor is provided between two adjacent sliding seats; the number of extreme position sensors is two, which are respectively set at the extreme positions of the up and down movement of the mounting plate.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects: In use, the elastic webbing is connected into a loop and fitted onto two support rods. A motor drives the support rods to move, achieving fatigue resistance testing of elastic properties. The structure is simple and stable. The use of a housing to isolate the transmission mechanism and the webbing improves safety. The motor is connected to a control device, which can control parameters such as the stretching frequency, support rod displacement amplitude, and number of cycles, improving the applicability of the testing equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the box body after the back panel is hidden.

[0015] Figure 3 This is a schematic diagram of the internal structure of the box body of this utility model.

[0016] Figure 4 This is a partial structural diagram of the present utility model.

[0017] Figure 5 This is a schematic diagram of the mounting plate and support rod structure of this utility model.

[0018] In the diagram: 1. Housing; 2. Sliding slot; 3. Sliding seat; 4. Slide rail; 5. Sliding block; 6. Mounting plate; 7. Support rod; 8. Motor; 9. Lead screw; 10. Through slot; 11. Nut; 12. Clamping plate; 13. Limit position sensor. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0020] like Figure 1 and Figure 2 As shown, an apparatus for testing the fatigue resistance of elastic webbing includes: a housing 1, with two sets of vertically corresponding sliding slots on one side of the housing 1. Each sliding slot set includes several sliding slots 2 evenly distributed along the length of the housing 1. The sliding slots 2 have a certain length to meet the movement requirements.

[0021] Preferably, the side wall of the housing 1 with the sliding slot 2 is an integrated laser-engraved aluminum alloy panel. The aluminum alloy panel has the characteristics of high strength and light weight, making the structure more stable, reducing resonance during testing, and reducing testing noise. The sliding slot 2 is laser-engraved and cut.

[0022] The housing 1 has several sliding seats 3 inside, each sliding seat 3 corresponding to two sliding slots 2 and positioned between the two sliding slots 2. Half of the length of the sliding seat 3 is located in the upper sliding slot group, and the other half is located in the lower sliding slot group.

[0023] like Figure 3 and Figure 4 As shown, a slide rail 4 is provided on the sliding seat 3, and two sliding blocks 5 are slidably mounted on the slide rail 4. The two sliding blocks 5 correspond to two sets of sliding slots respectively. A mounting plate 6 is provided on the sliding block 5, and two support rods 7 are provided on the mounting plate 6. The support rods 7 extend from the sliding slot 2 to the outside of the housing 1, serving as support components for the elastic webbing.

[0024] The mounting plate 6 is U-shaped, with its center fixedly connected to the sliding block 5. Two sliding slots 2 are provided on each side, and through slots 10 corresponding to the sliding slots 2 are provided on both sides of the mounting plate 6. The support rod 7 is slidably connected within the through slots 10, allowing for adjustment of its vertical position. Preferably, the support rod 7 is fixedly connected to the mounting plate 6 via a nut 11. A threaded section is provided at the end of the support rod 7, which is inserted into the through slot 10. The mounting plate 6 is clamped by the nut 11 and the end face of the threaded section, thus achieving a fixed connection between the support rod 7 and the mounting plate 6.

[0025] like Figure 5As shown, the support rod 7 is provided with two clamps 12 on the stage outside the box 1 to limit the coverage of the elastic webbing and prevent the elastic webbing from falling off during testing.

[0026] A motor 8 is installed at the bottom of the sliding seat 3, and the motor 8 is connected to a lead screw 9 mounted on the sliding seat 3. The lead screw 9 has two sets of threads in different directions on its surface, which respectively engage with the threads of two sliding blocks 5 to achieve synchronous and opposite movement of the two sliding blocks 5. The motor 8 drives the lead screw 9 to rotate, and the lead screw 9 drives the two sliding blocks 6 to move synchronously. Because the two sliding blocks 5 are threaded onto the threads of the lead screw 9 in two different directions, the two sliding blocks 5 move in opposite directions, causing the upper and lower support rods 7 to move closer or further apart, thus achieving the stretching and loosening of the elastic webbing.

[0027] Two limit position sensors 13 are provided between two adjacent sliding seats 3, and are respectively set at the limit positions of the vertical movement of the mounting plate 6. The limit position sensors 13 are used to monitor the limits of the movement of the mounting plate 6 to avoid structural interference caused by excessive movement.

[0028] The surface of the housing 1 is equipped with a control panel and buttons, which are connected to the control device inside the housing 1 to control the opening and closing of the motor 8 and to set various parameters.

[0029] This application is designed to evaluate the fatigue resistance of elastic webbing under repeated tension. By simulating the dynamic stress environment in actual use, it quantifies the material's durability and deformation recovery ability. It supports multiple cyclic loading modes, including constant load and constant displacement, simulating dynamic stress conditions in everyday applications. The tension frequency range and displacement amplitude are adjustable, and the number of test cycles can be preset. When the load or displacement exceeds the set range, the machine automatically stops to protect the equipment and operator safety. It allows for manual operation; after the preset program is started, the equipment automatically completes the testing process and can test multiple sets of products simultaneously. It is used for batch sampling inspection of elastic webbing production to ensure that the webbing meets design requirements. Through high-precision mechatronics design and usage environment simulation, this application evaluates the dynamic mechanical properties of elastic webbing, providing a reliable basis for product optimization and industry certification.

[0030] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A device for testing the fatigue resistance of elastic webbing, characterized in that, include: Box body (1); The box body (1) has two sets of sliding slots arranged vertically and vertically; The sliding slots include several sliding slots (2) evenly distributed along the length of the box body (1); The housing (1) is provided with a plurality of sliding seats (3); one sliding seat (3) corresponds to two sliding slots (2) and is located between the two sliding slots (2); a slide rail (4) is provided on the sliding seat (3); two sliding blocks (5) are slidably arranged on the slide rail (4); the two sliding blocks (5) correspond to two sets of sliding slots respectively, and a mounting plate (6) is provided on the sliding block (5); two support rods (7) are provided on the mounting plate (6); the support rods (7) extend from the sliding slots (2) to the outside of the housing (1); The bottom of the sliding seat (3) is provided with a motor (8); the motor (8) is connected to the lead screw (9) provided on the sliding seat (3); the surface of the lead screw (9) is provided with two sets of threads in different directions, which are threadedly engaged with the two sliding blocks (5) respectively, so as to realize the synchronous reverse movement of the two sliding blocks (5).

2. The device for testing the fatigue resistance of elastic webbing according to claim 1, characterized in that, The mounting plate (6) is U-shaped, with the middle part fixedly connected to the sliding block (5), and the two sides are provided with two sliding slots (2), and the two sides of the mounting plate (6) are provided with through slots (10) corresponding to the sliding slots (2); the support rod (7) is slidably connected in the through slots (10).

3. The device for fatigue testing of the elastic properties of elastic webbing according to claim 2, characterized in that, The support rod (7) is fixedly connected to the mounting plate (6) by a nut (11).

4. The device for testing the fatigue resistance of elastic webbing according to claim 1, characterized in that, The support rod (7) is provided with two clamps (12) on the stage outside the box (1).

5. The device for fatigue testing of the elastic properties of elastic webbing according to claim 1, characterized in that, An extreme position sensor (13) is provided between two adjacent sliding seats (3); there are two extreme position sensors (13), which are respectively located at the extreme positions of the vertical movement of the mounting plate (6).

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