Cable torsion resistance test device

Abstract

The utility model discloses a cable torsion resistance test device, which comprises a worm and gear reducer, a dynamic torque sensor, a torsion transmission shaft, a bearing seat, a cable fixing clamp, a screw rod sliding table, a linear guide rail sliding group, a counterweight and a servo motor, the servo motor is connected with the worm and gear speed reducer; the output end of the worm and gear speed reducer is connected with a dynamic torque sensor; one side of the dynamic torque sensor is connected with a torsion shaft; the torsion shaft is supported by a bearing seat; one side of the torsion shaft is connected with one end; the two ends of the cable are fixed through cable fixing clamps. The cable fixing clamp located on one side of the torsion shaft fixes the connecting end of the cable and the torsion shaft. The cable fixing clamp on the other side is arranged on the screw rod sliding table; the lead screw sliding table is installed on the linear guide rail sliding set. The other end of the cable is connected with the counterweight through a connecting piece. The device has the advantages of simple structure, low cost and the like, and the torsion resistance of different cables can be confirmed by comparing and measuring the measurement results of the different cables under the same test condition.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable torsion resistance test device belongs to the technical field of wire and cable. BACKGROUND

[0002] In the use process of wire and cable, torsion is an inevitable phenomenon, especially in some special application occasions, such as power transmission, automation equipment, robots and other environments that require flexible wiring. The cable will be subjected to the dual action of tension and torsional force when in use, which has a significant impact on the performance and life of the cable. Specifically, the insulating material, metal sheath and internal conductor of the cable may appear creases, relaxation and even breakage after being twisted.

[0003] Although the torsional performance of the cable is crucial in design and application, there is still a lack of systematic standards and exact data to define the tolerance limit of the cable under torsion. For example, how to quantify the torsion resistance performance of the cable under certain torsion angle and load conditions, and the damage degree of the cable after a certain number of torsions, these problems have not been effectively solved.

[0004] The existing cable detection equipment often focuses on other performance indicators, such as electrical characteristics, heat resistance and mechanical strength, while the test device specifically for torsion resistance performance is relatively scarce. This makes cable manufacturers lack quantitative and standardized testing methods in the design and quality control process of the cable, leading to potential risks in the actual application of the cable.

[0005] In order to fill this gap, it is particularly important to develop a detection device that can quantitatively measure the torsion resistance performance of the cable. UTILITY MODEL CONTENT

[0006] In view of the problems existing in the prior art, the utility model provides a cable torsion resistance test device, thereby solving the above technical problems.

[0007] In order to achieve the above purpose, the utility model adopts the technical scheme of: a cable torsion resistance test device, comprising a worm gear reducer, a dynamic torque sensor, a torsion shaft, a bearing seat, a cable fixing clamp, a screw rod sliding table, a linear guide rail sliding group, a counterweight and a servo motor.

[0008] The servo motor is connected with a worm gear reducer, the output end of the worm gear reducer is connected with a dynamic torque sensor, one side of the dynamic torque sensor is connected with a torsion shaft, the torsion shaft is supported through a bearing seat, one side of the torsion shaft is connected with one end of a cable, the two ends of the cable are fixed through cable fixing clamps respectively, the connecting end of the cable fixed clamp on one side of the torsion shaft is connected with the torsion shaft, the cable fixing clamp on the other side is arranged on a screw sliding table, the screw sliding table is installed on a linear guide rail sliding group, and the other end of the cable is connected with a counterweight through a connecting piece.

[0009] Further, the connecting piece comprises a pulley piece, the pulley piece is installed on one side of a platform where the device is located through a fixing support, a connecting line is arranged on the pulley piece, one end of the connecting line is connected with the cable, and the other end is connected with the counterweight.

[0010] Further, limit blocks are arranged on the two sides of the linear guide rail sliding group, and the limit blocks are used for preventing the screw sliding table from exceeding a sliding range.

[0011] The cable torsion resistance test device can effectively test the torsion resistance performance of the cable through the cooperative work of the various components. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is a structural schematic front view of the utility model;

[0014] Figure 3 It is a structural schematic plan view of the utility model;

[0015] Figure 4 It is a structural schematic left view of the utility model.

[0016] In the drawing: 1, worm gear reducer, 2, dynamic torque sensor, 3, torsion shaft, 4, bearing seat, 5, cable, 6, cable fixing clamp, 7, screw sliding table, 8, linear guide rail sliding group, 9, counterweight, 10, servo motor, 11, pulley piece, 12, fixing support, 13, fixing support. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model will be further described in detail below through the drawings and examples. However, it should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the scope of the utility model.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

[0019] As shown in Figures 1-4 A kind of cable torsion resistance test device, including worm gear reducer 1, dynamic torque sensor 2, torsion transmission shaft 3, bearing seat 4, cable fixing clamp 6, screw slide 7, linear guide rail sliding group 8, counterweight 9 and servo motor 10;

[0020] Servo motor 10 is connected with worm gear reducer 1;The output end of worm gear reducer 1 is connected with dynamic torque sensor 2;Dynamic torque sensor 2 side is connected with torsion shaft 3;Torsion shaft 3 is supported by bearing seat 4;Torsion shaft 3 side is connected with one end of cable 5;The both ends of cable 5 are fixed by cable fixing clamp 6 respectively;Cable fixing clamp 6 located in the side of torsion shaft 3 is fixed with the connecting end of cable 5 and torsion shaft 3;The cable fixing clamp 6 of other side is arranged on screw slide 7;Screw slide 7 is installed in linear guide rail sliding group 8;The other end of cable 5 is connected with counterweight 9 by connecting piece.

[0021] In the preferred embodiment of the present application, the connecting piece includes pulley piece 11;The pulley piece 11 is installed on the side of the platform where the device is located by fixed support 12;Connection line 13 is provided on pulley piece 11;One end of connection line 13 is connected with one end of cable 5, and the other end is connected with counterweight 9.

[0022] In the preferred embodiment of the present application, limit block is provided on both sides of linear guide rail sliding group 8, which is used to prevent screw slide 7 from exceeding the sliding range.

[0023] The main purpose of the cable torsion resistance test device is to test the cable under torsion and evaluate its performance and durability under torsion load. The following is a detailed analysis of the working principle of the device:

[0024] Drive of servo motor 10: servo motor 10 as driving source, provides stable torsion power through worm gear reducer 1. Servo motor can control the speed and torque accurately, to ensure that the torsion speed and angle can be adjusted according to the demand in the test process.

[0025] Worm gear reducer 1: Worm gear reducer 1 converts the high-speed rotating motion output by the servo motor into low-speed high-torque output, ensuring that sufficient torque can be generated to twist the cable. The function of the reducer is to increase the output torque and slow down the speed to adapt to the test requirements of the cable.

[0026] Dynamic torque sensor 2: Dynamic torque sensor 2 is connected to the output end of worm gear reducer 1, which monitors the torque applied to the cable during the twisting process in real time. This sensor can provide high-precision torque data to ensure the accuracy of test results.

[0027] Twist drive shaft 3 is connected to cable 5: One end of twist shaft 3 is connected to cable 5, and the other end is supported by bearing seat 4 to ensure stability and smoothness during the twisting process. Cable 5 is used as the test object in the test, and its torsional resistance is directly affected by the force applied to the twist shaft.

[0028] Cable fixing clamp 6: The two ends of the cable are fixed by cable fixing clamp 6 to ensure that the cable does not slip or fall off during the test. The clamp on one side of the twist shaft 3 fixes the connection end of the cable and the twist shaft, while the clamp on the other side is installed on the lead screw sliding table 7 to facilitate adjustment of the relative position of the clamp and the cable.

[0029] Lead screw sliding table 7 and linear guide rail sliding group 8: The lead screw sliding table 7 moves smoothly through the linear guide rail sliding group 8, allowing the tension or slack of the cable to be adjusted as needed during the test. This design helps simulate the twisting of the cable under different working conditions.

[0030] Counterweight 9: The other end of the cable is connected to the counterweight 9 through a connecting piece, and the counterweight serves to apply a certain tension to the cable to simulate the load the cable may encounter in actual use. This design can effectively enhance the authenticity and reliability of the test.

[0031] Through the coordinated work of the above components, the cable torsional resistance test device can effectively test the torsional resistance of the cable. The torque generated by the servo motor driving the worm gear reducer is applied to the cable through the twist shaft, and the dynamic torque sensor monitors the torque changes in real time during the test to ensure the accuracy of the test data. The design of the entire system aims to simulate the twisting conditions that the cable may encounter in actual use, thereby providing an important basis for improving the design and material selection of the cable.

[0032] The above description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model. Any modification, equivalent replacement or improvement made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cable torsion resistance test device characterized by comprising: Including worm gear reducer (1), dynamic torque sensor (2), torsion shaft (3), bearing seat (4), cable fixing fixture (6), screw slide (7), linear guide rail slide group (8), counterweight (9) and servo motor (10); The servo motor (10) is connected with the worm gear reducer (1); the output end of the worm gear reducer (1) is connected with the dynamic torque sensor (2); one side of the dynamic torque sensor (2) is connected with the torsion shaft (3); the torsion shaft (3) is supported by the bearing seat (4); one side of the torsion shaft (3) is connected with one end of the cable (5); the two ends of the cable (5) are respectively fixed by the cable fixing fixture (6); the cable fixing fixture (6) on one side of the torsion shaft (3) is fixed with the connecting end of the cable (5) and the torsion shaft (3); the other cable fixing fixture (6) is arranged on the screw slide (7); the screw slide (7) is installed on the linear guide rail slide group (8); the other end of the cable (5) is connected with the counterweight (9) through a connecting piece.

2. A cable torsion resistance test apparatus according to claim 1, wherein The connecting piece includes a pulley piece (11); the pulley piece (11) is installed on one side of the platform where the device is located through a fixed support (12); a connecting line (13) is arranged on the pulley piece (11); one end of the connecting line (13) is connected with one end of the cable (5), and the other end is connected with the counterweight (9).

3. The cable torsion resistance test apparatus according to claim 1, wherein The linear guide rail slide group (8) is provided with a limit block on both sides, which is used to prevent the screw slide (7) from exceeding the sliding range.

Images