Cable bending test device

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a cable bending testing device which comprises supporting rods, a mounting table is fixedly mounted on the upper portions of the four supporting rods, an inclined groove is formed in the surface of the upper portion of the mounting table, a straight groove is formed in the upper portion of the mounting table, and a bending angle adjusting mechanism is arranged on the inner side of the inclined groove. And a bending test mechanism is arranged on the inner side of the straight groove. According to the cable bending test device, the action of adjusting the bending angle of the cable is realized by arranging the bending angle mechanism, and the bending test mechanism realizes bending test actions of different degrees on the cable; the technical problem that an existing electric wire and cable bending testing device can only bend electric wires and cables at a single bending degree is solved.

Description

Technical Field

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

[0002] In existing technologies, such as the cable bending test device disclosed on the Chinese patent website with publication number CN216900011U, one end of the cable to be tested is first passed through a semi-circular sleeve fixed on the test platform, and the other end is passed through a clamp. The start button on the controller controls the start of the drive motor, which in turn retracts the push rod, thereby bending the cable to be tested and achieving a tightened state. Pressing the reset button on the controller again pushes the drive motor to extend the push rod, which in turn causes the cable to return to its original state, achieving a loosened state. Cable continuity test modules are provided at both ends of the cable, which can observe the continuity of the internal core wires of the cable in real time to determine the bending life of the cable.

[0003] In actual use, the wire and cable bending test device can only bend the wire and cable to a single degree of bending, which does not conform to the rules of winding wires and cables with different diameters, resulting in overly one-sided test results. Utility Model Content

[0004] To address the technical problem that existing wire and cable bending test devices can only perform bending tests on wires and cables at a single degree of curvature, this invention proposes a cable bending test device.

[0005] The cable bending test device proposed in this utility model includes support rods, and mounting platforms are fixedly installed on the upper parts of the four support rods. An inclined groove is formed on the upper surface of the mounting platform, and a straight groove is formed on the upper part of the mounting platform. A bending angle adjustment mechanism is provided on the inner side of the inclined groove, and a bending test mechanism is provided on the inner side of the straight groove.

[0006] Preferably, the plurality of inclined grooves are arranged in a circumferential array along the center of the mounting platform. Limiting rods are fixedly connected to the inner sidewalls of the plurality of inclined grooves. Sliding blocks are slidably inserted into the arc surface of the limiting rods. A fixed shaft is fixedly installed on the upper part of the sliding block. A rotating roller is rotatably connected to the arc surface of the fixed shaft through a ball bearing. Every two rotating rollers are arranged in a linear array along the axes of the plurality of fixed shafts. The pulley grooves of the plurality of rotating rollers are respectively connected to the cable body for transmission.

[0007] The above technical solution involves setting a fixed shaft and a rotating roller to guide the cable body. A sliding block is also provided. By moving along the inclined groove under the limit of the limiting rod, the sliding block can drive the fixed shaft to move, so that the rotating roller can guide the cable body to different bending angles.

[0008] Preferably, the cable bending angle mechanism includes an electric telescopic rod, the bottom of which is fixedly installed on the ground. A lifting plate is fixedly installed on the upper part of the telescopic end of the electric telescopic rod. A first mounting plate is fixedly installed on the arc surface of the lifting plate. A pull rod is rotatably connected between the opposite surfaces of every two first mounting plates via a pin. A second mounting plate is fixedly installed on the lower part of the sliding block. A pull rod is rotatably connected between the opposite surfaces of every two second mounting plates and one end of a plurality of pull rods via a pin.

[0009] Through the above technical solution, an electric telescopic rod is set up. Activating the electric telescopic rod can drive the lifting plate to move up and down. The up and down movement of the lifting plate can drive the sliding block to slide in the inclined groove through the pull rod, so as to realize the automatic adjustment of the cable body at different bending angles.

[0010] Preferably, the bending test mechanism includes a support block, the outer surface of which is slidably inserted into the inner wall of the straight groove, a support plate is fixedly installed on the upper part of the support block, and ball bearings are rotatably connected to the lower two sides of the support plate. The outer surface of the ball bearings is in rolling contact with the upper surface of the mounting platform. A support shaft is rotatably connected to the upper part of the support plate through a ball bearing, and a mounting block is fixedly installed on the upper part of the support shaft. A pull wire hole is opened on the outer surface of the mounting block, and the inner wall of the pull wire hole is slidably inserted into the outer surface of the cable body.

[0011] The above technical solution involves setting up a support block that can move along the straight groove, thereby moving the mounting block and causing the cable body inside the pull hole to move. However, the cable body is guided by the rotating roller, allowing the support block to slide within the straight groove and enabling the cable body to undergo bending tests at different bending angles under the limiting guidance of the rotating roller. Ball bearings are placed under the support plate to make the sliding of the support block within the straight groove smoother. A support shaft is provided so that when the movement of the mounting block causes the cable body to bend, it will cause the mounting block to rotate around the support shaft as the center, preventing excessive bending at the connection between the cable body and the pull hole, which could damage the cable body.

[0012] Preferably, the lower part of the support block is provided with a fixing groove, and the inner top surface and inner bottom surface of the fixing groove are respectively rotatably connected to a rotating shaft through ball bearings. A rotating gear is fixedly connected to the arc surface of the rotating shaft. A spur rack is fixedly installed at the lower part of the mounting platform. The tooth groove of the spur rack meshes with the teeth of the rotating gear. The lower end of the rotating shaft passes through and extends out of the inner bottom surface of the fixing groove. A motor is fixedly installed at the lower part of the support block. The output end of the motor is fixedly connected to the lower part of the rotating shaft through a coupling.

[0013] Through the above technical solution, a motor is set up, and starting the motor can drive the rotating shaft to rotate, which in turn drives the rotating gear to rotate. The rotating gear is set to mesh with a straight rack, so that the rotation of the rotating gear can drive the support block to slide along the straight groove, so that the two support blocks can automatically reciprocate, and drive the cable body to perform bending tests at different bending angles under the limiting guidance of multiple rotating rollers.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. By setting the bending angle mechanism, the bending angle of the cable can be adjusted. The bending test mechanism enables the cable to be bent to different degrees, solving the technical problem that existing wire and cable bending test devices can only bend wires and cables to a single degree of bending.

[0016] 2. By setting a fixed shaft and a rotating roller, the cable body is guided. A sliding block is provided. The sliding block moves along the inclined groove under the limit of the limit rod, which can drive the fixed shaft to move, so that the rotating roller guides the cable body to different bending angles.

[0017] 3. By setting up a motor, starting the motor can drive the rotating shaft to rotate, which in turn drives the rotating gear to rotate. The rotating gear is set to mesh with the rack and pinion, so that the rotation of the rotating gear can drive the support block to slide along the straight groove, allowing the two support blocks to move back and forth automatically. This drives the cable body to perform bending tests at different bending angles under the limiting guidance of multiple rotating rollers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the cable bending test device proposed in this utility model;

[0019] Figure 2 This is a perspective view of the electric telescopic rod structure of the cable bending test device proposed in this utility model;

[0020] Figure 3 This is a perspective view of the support block structure of the cable bending test device proposed in this utility model;

[0021] Figure 4 A perspective view of the ball bearing structure of the cable bending test device proposed in this utility model;

[0022] Figure 5 This is a perspective view of the straight rack structure of the cable bending test device proposed in this utility model.

[0023] In the diagram: 1. Support rod; 2. Mounting platform; 3. Inclined groove; 4. Straight groove; 5. Limiting rod; 6. Sliding block; 7. Fixed shaft; 8. Rotating roller; 9. Cable body; 10. Electric telescopic rod; 11. Lifting plate; 12. First mounting plate; 13. Pull rod; 14. Second mounting plate; 15. Support block; 16. Support plate; 17. Ball bearing; 18. Support shaft; 19. Mounting block; 20. Pull wire hole; 21. Fixed groove; 22. Rotating shaft; 23. Rotating gear; 24. Straight rack; 25. Motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-5 The cable bending test device includes support rods 1, and mounting platforms 2 are fixedly installed on the upper part of the four support rods 1. The upper surface of the mounting platform 2 is provided with inclined grooves 3 and straight grooves 4. A bending angle adjustment mechanism is provided on the inner side of the inclined grooves 3 and a bending test mechanism is provided on the inner side of the straight grooves 4.

[0026] Multiple inclined grooves 3 are arranged in a circular array along the center of the mounting platform 2. Limiting rods 5 are fixedly connected to the inner sidewalls of the multiple inclined grooves 3 respectively. Sliding blocks 6 are slidably inserted into the arc surface of the limiting rods 5. A fixed shaft 7 is fixedly installed on the upper part of the sliding block 6. A rotating roller 8 is rotatably connected to the arc surface of the fixed shaft 7 through a ball bearing. Every two rotating rollers 8 are arranged in a linear array along the axis of the multiple fixed shafts 7 respectively. The pulley grooves of the multiple rotating rollers 8 are respectively connected to the cable body 9 for transmission.

[0027] By setting a fixed shaft 7 and a rotating roller 8, the cable body 9 is guided. A sliding block 6 is provided. The sliding block 6 moves along the inclined groove 3 under the limit of the limiting rod 5, which can drive the fixed shaft 7 to move, so that the rotating roller 8 guides the cable body 9 to different bending angles.

[0028] The cable bending angle mechanism includes an electric telescopic rod 10, the bottom of which is fixedly installed on the ground. A lifting plate 11 is fixedly installed on the upper part of the telescopic end of the electric telescopic rod 10. A first mounting plate 12 is fixedly installed on the arc surface of the lifting plate 11. A pull rod 13 is rotatably connected between the opposite surfaces of every two first mounting plates 12 via a pin. A second mounting plate 14 is fixedly installed on the lower part of the sliding block 6. A multiple pull rod 13 is rotatably connected between the opposite surfaces of every two second mounting plates 14 via pins.

[0029] By setting up an electric telescopic rod 10, starting the electric telescopic rod 10 can drive the lifting plate 11 to move up and down. The up and down movement of the lifting plate 11 can drive the sliding block 6 to slide in the inclined groove 3 through the pull rod 13, so as to realize the automatic adjustment of the cable body 9 at different bending angles.

[0030] The bending test mechanism includes a support block 15, the outer surface of which is slidably inserted into the inner wall of the straight groove 4, a support plate 16 is fixedly installed on the upper part of the support block 15, and ball bearings 17 are rotatably connected to the lower two sides of the support plate 16 respectively. The outer surface of the ball bearings 17 is in rolling contact with the upper surface of the mounting platform 2. A support shaft 18 is rotatably connected to the upper part of the support plate 16 through a ball bearing. An mounting block 19 is fixedly installed on the upper part of the support shaft 18. A pull wire hole 20 is opened on the outer surface of the mounting block 19, and the inner wall of the pull wire hole 20 is slidably inserted into the outer surface of the cable body 9.

[0031] By setting the support block 15, the support block 15 can move along the straight groove 4, driving the mounting block 19 to move, so that the cable body 9 in the pull hole 20 can move. However, the cable body 9 is guided by the rotating roller 8, so that the sliding of the support block 15 in the straight groove 4 can allow the cable body 9 to be bent at different bending angles under the limiting guidance of the rotating roller 8. The ball bearing 17 is set under the support plate 16, so that the sliding of the support block 15 in the straight groove 4 is smoother. The support shaft 18 is set so that when the movement of the mounting block 19 causes the cable body 9 to bend, it will cause the mounting block 19 to rotate around the support shaft 18 as the center, so that the connection between the cable body 9 and the pull hole 20 will not be bent excessively, causing damage to the cable body 9.

[0032] The lower part of the support block 15 is provided with a fixing groove 21. The inner top surface and inner bottom surface of the fixing groove 21 are respectively rotatably connected to the rotating shaft 22 by ball bearings. The arc surface of the rotating shaft 22 is fixedly connected to the rotating gear 23. The lower part of the mounting platform 2 is fixedly installed with a rack 24. The tooth groove of the rack 24 meshes with the tooth of the rotating gear 23. The lower end of the rotating shaft 22 passes through and extends out of the inner bottom surface of the fixing groove 21. The lower part of the support block 15 is fixedly installed with a motor 25. The output end of the motor 25 is fixedly connected to the lower part of the rotating shaft 22 through a coupling.

[0033] By setting up motor 25, starting motor 25 can drive rotating shaft 22 to rotate, which in turn drives rotating gear 23 to rotate. Rotating gear 23 is set to mesh with rack 24, so that the rotation of rotating gear 23 can drive support block 15 to slide along straight groove 4, so that the two support blocks 15 can automatically reciprocate, driving cable body 9 to perform bending tests at different bending angles under the limiting guidance of multiple rotating rollers 8.

[0034] Working principle: First, the cable body 9 to be bent is passed through the pull holes 20 on the two mounting blocks 19. When bending tests are performed on the cable body 9 at different bending angles, the electric telescopic rod 10 is activated to drive the lifting plate 11 to move up and down. The pull rod 13 drives the sliding block 6 to slide in the inclined groove 3, so that the sliding block 6 drives the fixed shaft 7 and the rotating roller 8 to a suitable position. Then, the motor 25 under the support block 15 on one side is activated to drive the rotating shaft 22 to rotate, which drives the rotating gear 23 to rotate. The rotating gear 23 is set to mesh with the rack 24, so that the rotation... The rotation of the moving gear 23 can drive the support block 15 to slide along the straight groove 4, so that the two support blocks 15 can move automatically, and drive the cable body 9 to perform bending tests at different bending angles under the limiting guidance of multiple rotating rollers 8. The ball bearing 17 is set under the support plate 16 to make the sliding of the support block 15 in the straight groove 4 smoother. The support shaft 18 is provided so that when the movement of the mounting block 19 causes the cable body 9 to bend, it will cause the mounting block 19 to rotate around the support shaft 18 as the center, so that the connection between the cable body 9 and the pull hole 20 will not bend excessively and cause damage to the cable body 9.

[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. Cable bending test device comprising a support rod (1), characterized in that: The upper part of four supporting rods (1) is fixedly installed with a mounting table (2), the upper surface of the mounting table (2) is provided with an inclined groove (3), the upper part of the mounting table (2) is provided with a straight groove (4), the inner side of the inclined groove (3) is provided with a bending angle adjusting mechanism, and the inner side of the straight groove (4) is provided with a bending test mechanism. The bending angle mechanism realizes the action of adjusting the bending angle of the cable; The bending test mechanism realizes the bending test action of the cable in different degrees.

2. The cable bend test apparatus of claim 1, wherein: A plurality of inclined grooves (3) are arranged in a circumferential array along the center of the mounting table (2), the inner side walls of the plurality of inclined grooves (3) are respectively fixedly connected with limiting rods (5), the circular arc surfaces of the limiting rods (5) are slidingly connected with sliding blocks (6), the upper part of the sliding block (6) is fixedly installed with a fixed shaft (7), the circular arc surface of the fixed shaft (7) is rotatably connected with a rotating roller (8) through a ball bearing, and every two rotating rollers (8) are arranged in a linear array along the axis of the plurality of fixed shafts (7), and the belt wheel grooves of the plurality of rotating rollers (8) are respectively drivingly connected with cable bodies (9).

3. The cable bend test apparatus of claim 2, wherein: The cable bending angle mechanism comprises an electric telescopic rod (10), the bottom of the electric telescopic rod (10) is fixedly installed on the ground, the telescopic end of the electric telescopic rod (10) is fixedly installed with a lifting plate (11) at the upper part, the circular arc surface of the lifting plate (11) is fixedly installed with a first mounting plate (12), and every two first mounting plates (12) are rotatably connected with a pull rod (13) through a pin shaft between the opposite surfaces.

4. The cable bend test apparatus of claim 3, wherein: The lower part of the sliding block (6) is fixedly installed with a second mounting plate (14), and every two second mounting plates (14) are rotatably connected with one end of a plurality of pull rods (13) through a pin shaft between the opposite surfaces.

5. The cable bend test apparatus of claim 2, wherein: The bending test mechanism comprises a supporting block (15), the outer surface of the supporting block (15) is slidingly connected with the inner side wall of the straight groove (4), the upper part of the supporting block (15) is fixedly installed with a supporting plate (16), the lower part of the supporting plate (16) is rotatably connected with a ball (17) on both sides, the outer surface of the ball (17) is in rolling contact with the upper surface of the mounting table (2), the upper part of the supporting plate (16) is rotatably connected with a supporting shaft (18) through a ball bearing, the upper part of the supporting shaft (18) is fixedly installed with a mounting block (19), the outer surface of the mounting block (19) is provided with a pull line hole (20), and the inner side wall of the pull line hole (20) is slidingly connected with the outer surface of the cable body (9).

6. The cable bend test apparatus of claim 5, wherein: The lower part of the supporting block (15) is provided with a fixed groove (21), the inner top surface and the inner bottom surface of the fixed groove (21) are rotatably connected with a rotating shaft (22) through a ball bearing, the circular arc surface of the rotating shaft (22) is fixedly connected with a rotating gear (23), the lower part of the mounting table (2) is fixedly installed with a straight rack (24), and the gear groove of the straight rack (24) is engaged with the gear teeth of the rotating gear (23).

7. The cable bend test apparatus of claim 6, wherein: The lower end of the rotating shaft (22) penetrates and extends out of the inner bottom surface of the fixed groove (21), the lower part of the supporting block (15) is fixedly installed with a motor (25), and the output end of the motor (25) is fixedly connected with the lower part of the rotating shaft (22) through a shaft coupling.

Images