Cable bending fatigue testing device

Abstract

The utility model relates to the related technical field of cable bending testing, in particular to a cable bending fatigue testing device which comprises a testing table, a positioning mechanism is arranged on one side of the top face of the testing table, a clamping mechanism is arranged at the upper end of the positioning mechanism, a rotating disc is arranged above the testing table, and a clamping mechanism is arranged at the lower end of the rotating disc. A center shaft is welded to the upper portion of the rotating disc, a bending hole is formed in the upper portion of the rotating disc, a bending shaft is embedded in the bending hole, supporting holes are formed in the two ends of the top face of the rotating disc, supporting shafts are arranged in the supporting holes, and universal wheels are installed on the bottom face of the testing table. According to the cable bending fatigue testing device, through the arrangement of the clamping mechanism, in the using process, the clamping mechanism can clamp and fix cables with different diameters, then testing operation is carried out, the overall operation is simple and rapid, a clamping fixture does not need to be replaced due to different sizes of the cables, and the testing efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cable bending testing, and in particular to a cable bending fatigue testing device. Background Technology

[0002] Cables are a general term for items such as optical cables and electrical cables. Cables have many uses, primarily for control installation, equipment connection, and power transmission, making them a common and indispensable part of daily life. Because cables are live, installation requires special care. Repeated bending of cables can cause insulation materials to age or crack, increasing the risk of leakage and short circuits. Testing can identify the fatigue strength of materials, preventing fires or electric shocks caused by insulation failure. By simulating dynamic bending scenarios, the fatigue limit of the cable's metallic conductor can be detected, preventing equipment downtime or signal interruption due to breakage. Therefore, a cable bending fatigue testing device is particularly needed.

[0003] However, in the use of existing cable bending fatigue testing devices, most of them use springs for positioning support parts. However, due to issues such as spring coefficient, material, and pressure, springs are prone to deformation or even breakage, rendering the entire cable bending fatigue testing device unusable. Utility Model Content

[0004] The purpose of this utility model is to provide a cable bending fatigue testing device to solve the problem mentioned in the background art that most existing cable bending fatigue testing devices use springs for positioning support parts during use. However, due to issues such as spring coefficient, material, and pressure, springs are prone to deformation or even breakage, making the entire cable bending fatigue testing device unusable.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable bending fatigue testing device, comprising a testing platform, a positioning mechanism provided on one side of the top surface of the testing platform, a clamping mechanism provided at the upper end of the positioning mechanism, a rotating disk provided above the testing platform, a central shaft welded above the rotating disk, a bending hole provided above the rotating disk, a bending shaft embedded inside the bending hole, support holes provided at both ends of the top surface of the rotating disk, a support shaft provided inside the support hole, and casters installed on the bottom surface of the testing platform;

[0006] The clamping mechanism includes a support base, a second limiting groove, a second lead screw, a screw head, a third limiting block, a fourth limiting block, a second fixing block, and a clamping plate. The upper end of the positioning mechanism is connected to the support base. A second limiting groove is opened on one side of the support base. A second lead screw is arranged inside the second limiting groove. A screw head is provided at one end of the second lead screw. A third limiting block is connected to the top of the support base. A fourth limiting block is connected inside the second limiting groove. A second fixing block is sleeved on one end of the second lead screw. A clamping plate is connected to one end of the second fixing block.

[0007] Preferably, the second lead screw passes through the second fixing block and is welded to the screw head.

[0008] Preferably, the second fixing block is embedded and connected to the clamping plate.

[0009] Preferably, the positioning mechanism includes a first limiting groove, a first lead screw, a first limiting block, a second limiting block, a first fixing block, a first threaded hole, and a handle, and the first limiting groove is provided on the upper side of the test platform.

[0010] Preferably, a first lead screw is provided inside the first limiting groove, one end of the first lead screw is connected to a first limiting block, the other end of the first lead screw is connected to a second limiting block, one end of the first lead screw is provided with a first fixing block, one side of the first fixing block is provided with a first threaded hole, and one end of the first limiting block is connected to a handle.

[0011] Preferably, one end of the first lead screw is fixedly connected to the first limiting block, the other end of the first lead screw is fixedly connected to the second limiting block, and the other end of the first limiting block is welded to the handle.

[0012] Preferably, the bending hole is embedded in the bending shaft.

[0013] Preferably, the support hole is embedded in the support shaft.

[0014] Preferably, the casters are provided in four sets.

[0015] Preferably, the omnidirectional wheel is an omnidirectional brake wheel.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the cable bending fatigue testing device, through the setting of the clamping mechanism, can clamp and fix cables of different diameters during use, and then perform the testing operation. The overall operation is simple and quick, and there is no need to change the clamping fixture due to different cable sizes, which greatly improves the testing efficiency. Attached Figure Description

[0017] Figure 1 This is a side view of the appearance structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the bending hole and the bending shaft of this utility model.

[0021] In the diagram: 1. Test bench; 2. Positioning mechanism; 201. First limiting groove; 202. First lead screw; 203. First limiting block; 204. Second limiting block; 205. First fixing block; 206. First threaded hole; 207. Handle; 3. Clamping mechanism; 301. Support base; 302. Second limiting groove; 303. Second lead screw; 304. Screw head; 305. Third limiting block; 306. Fourth limiting block; 307. Second fixing block; 308. Clamping plate; 4. Rotary disk; 5. Central shaft; 6. Bending hole; 7. Bending shaft; 8. Support hole; 9. Support shaft; 10. Caster wheel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a cable bending fatigue testing device, including a test platform 1, a positioning mechanism 2 is provided on one side of the top surface of the test platform 1, a clamping mechanism 3 is provided at the upper end of the positioning mechanism 2, a rotating disk 4 is provided above the test platform 1, a central shaft 5 is welded above the rotating disk 4, a bending hole 6 is provided above the rotating disk 4, a bending shaft 7 is embedded inside the bending hole 6, support holes 8 are opened at both ends of the top surface of the rotating disk 4, a support shaft 9 is opened inside the support hole 8, and a caster wheel 10 is installed on the bottom surface of the test platform 1;

[0024] The clamping mechanism 3 includes a support base 301, a second limiting groove 302, a second lead screw 303, a screw head 304, a third limiting block 305, a fourth limiting block 306, a second fixing block 307, and a clamping plate 308. The upper end of the positioning mechanism 2 is connected to the support base 301. A second limiting groove 302 is formed on one side of the support base 301. A second lead screw 303 is installed inside the second limiting groove 302, and a screw head 304 is installed at one end of the second lead screw 303. A third limiting block 305 is connected to the top of the support base 301, and a fourth limiting block 306 is connected inside the second limiting groove 302. A second fixing block 307 is fitted onto one end of the second lead screw 303, and a clamping plate 308 is connected to one end of the second fixing block 307. With the support base 301, the second limiting groove 302, the second lead screw 303, the screw head 304, the third limiting block 305, the fourth limiting block 306, the second fixing block 307, and the clamping plate 308, in use, the second lead screw 303 is passed through the third limiting block 305 and simultaneously spiraled through the second fixing block 307. Then, by rotating the screw head 304, the position of the second fixing block 307 is adjusted, thereby adjusting the position of the clamping plate 308, which can clamp and fix the cable.

[0025] Furthermore, the second lead screw 303 passes through the second fixing block 307 and is welded to the screw head 304. With the screw head 304 in place, the position of the second fixing block 307 can be adjusted by rotating the screw head 304 during use. The second fixing block 307 drives the position of the clamping plate 308 to move, thereby realizing the fixing and supporting function of the clamping plate 308 on the reinforcing bar.

[0026] Furthermore, the second fixing block 307 is embedded and connected to the clamping plate 308.

[0027] Furthermore, the positioning mechanism 2 includes a first limiting groove 201, a first lead screw 202, a first limiting block 203, a second limiting block 204, a first fixing block 205, a first threaded hole 206, and a handle 207. The first limiting groove 201 is provided on one side of the upper part of the test platform 1. The first lead screw 202 is disposed inside the first limiting groove 201. One end of the first lead screw 202 is connected to the first limiting block 203, and the other end of the first lead screw 202 is connected to the second limiting block 204. One end of the first lead screw 202 is provided with the first fixing block 205. A first threaded hole 206 is provided on one side of the first fixing block 205. One end of the first limiting block 203 is connected to the handle 207. The positioning mechanism 2 is connected to the first limiting groove 201 and the first lead screw 202. The arrangement of the first limiting block 203, the second limiting block 204, the first fixing block 205, the first threaded hole 206, and the handle 207 allows the first lead screw 202 to be screwed through the first threaded hole 206 and connected to the first fixing block 205 during use. The first limiting block 203 and the second limiting block 204 are welded to both ends of the first lead screw 202. By setting the first limiting block 203 and the second limiting block 204, the first lead screw 202 can maintain its position when the handle 207 is turned. At the same time, the first lead screw 202 and the first threaded hole 206 are rotatably connected, and the position can be adjusted when the handle 207 is rotated. After the position is determined, the first fixing block 205 is fixed in the appropriate position by stopping the rotation of the handle 207.

[0028] Furthermore, one end of the first lead screw 202 is fixedly connected to the first limiting block 203, and the other end of the first lead screw 202 is fixedly connected to the second limiting block 204. The other end of the first limiting block 203 is welded to the handle 207. By setting the handle 207, the position of the first fixing block 205 can be adjusted by rotating the first lead screw 202 during use.

[0029] Furthermore, the bending hole 6 is embedded in the bending shaft 7, and the support hole 8 is embedded in the support shaft 9. With the setting of the bending hole 6, cables of different diameters can be bent during use.

[0030] Furthermore, four sets of casters 10 are provided. Casters 10 are universal brake casters. With the setting of casters 10, the test platform 1 can be moved efficiently during use.

[0031] Working principle: First, place one end of the cable on the rotating disk 4, close to the central shaft 5. Then, fix the bending shaft 7 in the bending hole 6 to fix one end of the reinforcing bar. Next, fix the support shaft 9 in the support hole 8 to fix the other end of the cable. Then, move the first fixing block 205 by rotating the handle 207 to move the positioning mechanism 2 to the appropriate position so that the cable end close to the support shaft 9 is between the clamping plates 308. Then, rotate the screw head 304. The rotation of the screw head 304 moves the second fixing block 307, which drives the clamping plate 308 to move and clamp the cable. Then, turn on the switch of the test bench 1. The rotation of the bending shaft 7 on the rotating disk 4 will cause the cable to bend, thereby performing a bending fatigue test on the cable.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable bending fatigue testing device, comprising a testing table (1), characterized in that: A positioning mechanism (2) is provided on one side of the top surface of the test platform (1). A clamping mechanism (3) is provided at the upper end of the positioning mechanism (2). A rotating disk (4) is provided above the test platform (1). A central shaft (5) is welded above the rotating disk (4). A bending hole (6) is provided above the rotating disk (4). A bending shaft (7) is embedded inside the bending hole (6). Support holes (8) are opened at both ends of the top surface of the rotating disk (4). A support shaft (9) is opened inside the support hole (8). A caster wheel (10) is installed on the bottom surface of the test platform (1). The clamping mechanism (3) includes a support base (301), a second limiting groove (302), a second lead screw (303), a screw head (304), a third limiting block (305), a fourth limiting block (306), a second fixing block (307), and a clamping plate (308). The upper end of the positioning mechanism (2) is connected to the support base (301). The support base (301) has a second limiting groove (302) on one side. The second limiting groove (302) is provided with a second lead screw (303) inside. One end of the second lead screw (303) is provided with a screw head (304). The top end of the support base (301) is connected to the third limiting block (305). The second limiting groove (302) is connected to the fourth limiting block (306). One end of the second lead screw (303) is fitted with a second fixing block (307). One end of the second fixing block (307) is connected to a clamping plate (308).

2. The cable bending fatigue testing device according to claim 1, characterized in that: The second lead screw (303) passes through the second fixing block (307) and is welded to the screw head (304).

3. The cable bending fatigue testing device according to claim 1, characterized in that: The second fixing block (307) is embedded and connected to the clamping plate (308).

4. The cable bending fatigue testing device according to claim 1, characterized in that: The positioning mechanism (2) includes a first limiting groove (201), a first lead screw (202), a first limiting block (203), a second limiting block (204), a first fixing block (205), a first threaded hole (206), and a handle (207). The first limiting groove (201) is provided on the upper side of the test platform (1).

5. The cable bending fatigue testing device according to claim 4, characterized in that: The first limiting groove (201) is provided with a first lead screw (202), one end of the first lead screw (202) is connected to a first limiting block (203), the other end of the first lead screw (202) is connected to a second limiting block (204), one end of the first lead screw (202) is provided with a first fixing block (205), one side of the first fixing block (205) is provided with a first threaded hole (206), and one end of the first limiting block (203) is connected to a handle (207).

6. The cable bending fatigue testing device according to claim 5, characterized in that: One end of the first lead screw (202) is fixedly connected to the first limiting block (203), the other end of the first lead screw (202) is fixedly connected to the second limiting block (204), and the other end of the first limiting block (203) is welded to the handle (207).

7. The cable bending fatigue testing device according to claim 1, characterized in that: The bending hole (6) is embedded in the bending shaft (7).

8. The cable bending fatigue testing device according to claim 7, characterized in that: The support hole (8) is embedded in the support shaft (9).

9. The cable bending fatigue testing device according to claim 1, characterized in that: The universal wheels (10) are provided in four sets.

10. A cable bending fatigue testing device according to claim 9, characterized in that: The omnidirectional wheel (10) is an omnidirectional brake wheel.

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