Novel cable bending torsion testing machine

Abstract

The utility model discloses a novel cable bending torsion testing machine which comprises a first platform. A torsion mechanism and a bending mechanism are arranged at the upper end of the platform I; the torsion mechanism comprises a servo motor speed reducer and a chain wheel transmission mechanism; the bending mechanism comprises a platform II; a plurality of screw rod sliding table modules are arranged on the platform II; the lead screw sliding table module comprises a sliding table base and a lead screw assembly. An outer side bending wheel is arranged on the sliding table seat; a middle moving platform is arranged on the platform II; the middle moving platform is connected with the second platform through a sliding rail and sliding seat mechanism. The second platform is provided with a positive and negative tooth lead screw assembly. A left inner side bending wheel and a right inner side bending wheel are arranged on the positive and negative tooth screw rod assembly; the first platform is further provided with a front end moving platform assembly. One side of the front-end moving platform assembly is connected with the counterweight mechanism; a main driving motor is arranged at the bottom of the first platform. The device can accurately and quantitatively measure bending and torsion resistance data of different cables under a fixed test condition before cable cores are broken, so that the product quality is improved.

Description

Technical Field

[0001] The utility model relates to a novel cable bending and torsion testing machine, belonging to the technical field of wire and cable. Background Art

[0002] In the wire and cable industry, the performance of cables directly affects their reliability and safety in actual applications. The bending and torsion performance of cables are important factors affecting their service life and electrical performance. Therefore, the measurement and evaluation of these performances are particularly important. Wire and cable usually consist of multiple layers such as conductors, insulating layers, and sheaths. The selection of different materials directly affects the mechanical and electrical properties of the cable. During the installation and use of the cable, it is often affected by bending. The bending performance of the cable mainly refers to whether the cable can maintain its electrical performance and mechanical strength in the bent state, and avoid insulation failure or conductor breakage.

[0003] With the continuous expansion of the cable application fields, especially in high-end manufacturing, transportation, and new energy industries, the performance requirements for cables are getting higher and higher. The industry urgently needs a special equipment that can simultaneously measure the bending and torsion performance of cables under specific tensions to ensure that the cables can meet strict usage standards and safety requirements. Content of the Utility Model

[0004] Aiming at the problems existing in the above-mentioned prior art, the utility model provides a novel cable bending and torsion testing machine to solve the above technical problems.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a novel cable bending and torsion testing machine, including a platform one; a torsion mechanism and a bending mechanism are arranged on the upper end of the platform one; the torsion mechanism includes a servo motor reducer and a sprocket transmission mechanism; one side of the servo motor reducer is connected with the sprocket transmission mechanism; the other side sprocket mounting seat of the sprocket transmission mechanism is arranged on one side of the cable mounting frame; the cable mounting frame is a base with a through channel in the center, and one side of it clamps and fixes the test cable through a cable torsion fixture;

[0006] The bending mechanism includes a platform two; a plurality of lead screw sliding table modules are arranged on the platform two; the lead screw sliding table module includes a sliding table seat and a lead screw assembly; an outer bending wheel is arranged on the sliding table seat; an intermediate moving platform is arranged on the platform two; the intermediate moving platform is connected with the platform two through a slide rail and slide block mechanism;

[0007] A left-right hand lead screw assembly is arranged on the platform two; two inner bending wheels are arranged on the left-right hand lead screw assembly; the two inner bending wheels move relatively on the left-right hand lead screw assembly;

[0008] There is also a front-end mobile platform component provided on the first platform; a fixed seat is provided on the front-end mobile platform component for installing and fixing test cables;

[0009] One side of the front-end mobile platform component is connected to a counterweight mechanism through a chain and multiple intermediate sprockets; the counterweight mechanism includes a counterweight block and a connecting frame;

[0010] A main drive motor is provided at the bottom of the first platform; the main drive motor drives a gear and a rack in cooperation through a transmission mechanism to drive the second platform to move back and forth, and the rack is arranged at the bottom position of the second platform.

[0011] Furthermore, the cable torsion fixture adopts a metal pipe clamp structure, which specifically consists of a detachable clamp body and a clamp mouth; fixing holes are provided on the clamp body so that the pipe clamp can be fixed to the support structure of the cable mounting rack through bolts or other fixing parts.

[0012] Furthermore, 4 groups of screw slide table modules are provided, and they are arranged in pairs on both sides of the horizontal center line of the test cable; the screw slide table modules are also symmetrically arranged in pairs around the left and right sides of the middle moving platform.

[0013] Furthermore, a roller support frame is also provided on the first platform, which is used to support and guide the test cable.

[0014] The beneficial effects of the present utility model are:

[0015] This device can accurately quantify and measure the anti-bending and torsion data of different cables under fixed test conditions before the cable core breaks, so that cable production units can effectively control the anti-bending and torsion performance of products to improve product quality; through the overall structural design of this device, the bending test device and the torsion performance test device are integrated on a test platform, and users can perform various mechanical property tests on the same platform, improving test efficiency and reducing the time and cost of equipment switching; ensuring that samples are subjected to different types of stress in the same environment, enhancing the comparability and reliability of data. Description of the Drawings

[0016] Figure 1 It is the main structural schematic view of the present utility model;

[0017] Figure 2 It is the top structural schematic view of the present utility model.

[0018] In the figure: 1. Servo motor reducer; 2. Sprocket drive mechanism; 3. Cable torsion fixture; 4. Lead screw sliding table module; 5. Intermediate moving platform; 6. Inner bending wheel; 7. Outer bending wheel; 8. Left and right hand lead screw assembly; 9. Front end moving platform; 10. Transition sprocket; 11. Counterweight mechanism; 12. Main drive motor; 13. Gear; 14. Rack; 15. Chain; 16. Test cable; 17. Platform 1; 18. Platform 2; 19. Roller support frame. Detailed implementation mode

[0019] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0021] As Figure 1 - Figure 2 shown, a new type of cable bending and torsion testing machine includes Platform 1 17; a torsion mechanism and a bending mechanism are provided on the upper end of the Platform 1 17; the torsion mechanism includes a servo motor reducer 1 and a sprocket drive mechanism 2; one side of the servo motor reducer 1 is connected to the sprocket drive mechanism 2; the other side sprocket mounting seat of the sprocket drive mechanism 2 is arranged on one side of the cable mounting frame; the cable mounting frame is a base with a through channel in the center, and one side thereof clamps and fixes the test cable 16 through a cable torsion fixture 3;

[0022] The bending mechanism includes Platform 2 18; a plurality of lead screw sliding table modules 4 are provided on the Platform 2 18; the lead screw sliding table module 4 includes a sliding table seat and a lead screw assembly; an outer bending wheel 7 is arranged on the sliding table seat; an intermediate moving platform 5 is arranged on the Platform 2 18; the intermediate moving platform 5 is connected to the Platform 2 18 through a slide rail and slide block mechanism;

[0023] A left and right hand lead screw assembly 8 is arranged on the Platform 2 18; two inner bending wheels 6 are arranged on the left and right hand lead screw assembly 8; the two inner bending wheels 6 on the left and right perform relative movement on the left and right hand lead screw assembly 8;

[0024] A front end moving platform assembly 9 is further arranged on the Platform 1 17; a fixing seat is arranged on the front end moving platform assembly 9 for installing and fixing the test cable 16;

[0025] One side of the front-end mobile platform component 9 is connected to the counterweight mechanism 11 through a chain 15 and multiple transition sprockets 10; the counterweight mechanism includes a counterweight block and a connecting frame; by adopting the above counterweight mechanism, the effective test of the tension can be realized, and the precise test can be realized by increasing or decreasing the counterweight.

[0026] A main drive motor 12 is arranged at the bottom of the platform one 17; the main drive motor 12 drives the gear 13 and the rack 14 to cooperate through a transmission mechanism, and then drives the platform two 18 to move back and forth, and the rack 14 is arranged at the bottom position of the platform two 18.

[0027] Preferably in this embodiment, the cable torsion fixture 3 adopts a metal pipe clamp structure, which specifically consists of a detachable clamp body and a clamp mouth; fixing holes are provided on the clamp body so that the pipe clamp can be fixed on the support structure of the cable mounting rack through bolts or other fixing parts. This fixture is specifically used for the torsion performance test of the cable, and can maintain the stability of the cable while applying a torsional force, so as to accurately measure the torsion angle and torque. Due to the adjustable design of the fixture, it is applicable to various types and specifications of cables, expanding the application range of the equipment.

[0028] Preferably in this embodiment, 4 groups of lead screw slide table modules 4 are provided, and they are arranged in pairs on both sides of the horizontal center line of the test cable 16; the lead screw slide table modules 4 are also symmetrically arranged in pairs around the left and right sides of the middle moving platform 5. This structural design enables the middle platform to move flexibly during the test to adapt to test cables of different lengths and specifications.

[0029] Preferably in this embodiment, a roller support frame 19 is further arranged on the platform one 17, which is used to support and guide the test cable 16. The roller support frame provides necessary support for the test cable 16, preventing the cable from sagging or deforming due to its own weight during the test, and ensuring the stability of the test. The rollers of the roller support frame can rotate freely, so that the test cable can move smoothly along the preset path when moving or applying force, reducing the frictional resistance and improving the test efficiency. The roller support frame is designed to be adjustable, and the user can flexibly adjust the position of the support frame according to the length and specifications of different cables to meet various test requirements.

[0030] Main working principle:

[0031] A bending process: One end of the test cable 16 is installed on the cable torsion fixture 3, and the other end is installed on the front-end mobile platform 9. The front-end mobile platform 9 is connected to the counterweight through a chain 15 and a transition sprocket 10. Hang the corresponding counterweight to make the test cable 16 generate a certain tension. The main drive motor 12 starts to work. The middle moving platform 5 generates the power to move back and forth in the way of gear and rack. The inner and outer bending wheels act on the cable, making the test cable 16 generate a bending effect back and forth.

[0032] B Twisting process: After the number of bending times in one cycle is completed, the servo motor reducer 1 starts to work. Through the transmission of the sprocket, the test cable 16 is rotated by a certain angle. Keeping this angle, the cable starts the bending test of the next cycle. And relevant data are recorded.

[0033] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements 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 new type of cable bending and torsion testing machine, characterized in that, It includes Platform 1 (17); a torsion mechanism and a bending mechanism are arranged at the upper end of the Platform 1 (17); the torsion mechanism includes a servo motor reducer (1) and a sprocket transmission mechanism (2); the servo motor reducer (1) is connected to the sprocket transmission mechanism (2) on one side; the sprocket mounting seat on the other side of the sprocket transmission mechanism (2) is arranged on one side of the cable mounting frame; the cable mounting frame is a base with a through channel in the center, and a test cable (16) is clamped and fixed on one side thereof through a cable torsion clamp (3). The bending mechanism includes Platform 2 (18); a plurality of lead screw slide table modules (4) are arranged on the Platform 2 (18); the lead screw slide table module (4) includes a slide table seat and a lead screw assembly; an outer bending wheel (7) is arranged on the slide table seat; an intermediate moving platform (5) is arranged on the Platform 2 (18); the intermediate moving platform (5) is connected to the Platform 2 (18) through a slide rail and slide block mechanism. A left - right double - lead screw assembly (8) is arranged on the Platform 2 (18); two inner bending wheels (6) are arranged on the left - right double - lead screw assembly (8); the two inner bending wheels (6) on the left and right perform relative movement on the left - right double - lead screw assembly (8). A front - end moving platform assembly (9) is further arranged on the Platform 1 (17); a fixing seat for installing and fixing the test cable (16) is arranged on the front - end moving platform assembly (9). One side of the front - end moving platform assembly (9) is connected to a counterweight mechanism (11) through a chain (15) and a plurality of intermediate sprockets (10); the counterweight mechanism includes a counterweight block and a connecting frame. A main drive motor (12) is arranged at the bottom of the Platform 1 (17); the main drive motor (12) drives a gear (13) and a rack (14) to cooperate through a transmission mechanism, and further drives the Platform 2 (18) to move back and forth, and the rack (14) is arranged at the bottom position of the Platform 2 (18).

2. The novel cable bending and torsion testing machine according to claim 1, wherein The cable torsion clamp (3) adopts a metal pipe clamp structure, which is specifically composed of a detachable clamp body and a clamp mouth; fixing holes are arranged on the clamp body so that the pipe clamp can be fixed on the support structure of the cable mounting frame through bolts or fixing parts.

3. A novel cable bending and torsion testing machine according to claim 1, characterized in that, 4 groups of the lead screw slide table modules (4) are arranged, and they are arranged in pairs on both sides of the horizontal center line of the test cable (16); the lead screw slide table modules (4) are also arranged symmetrically in pairs on the left and right sides of the intermediate moving platform (5).

4. A novel cable bending and torsion testing machine according to claim 1, characterized in that, A roller support frame (19) is further arranged on the Platform 1 (17), which is used to support and guide the test cable (16).

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