Cable flexibility testing device and testing method thereof

Abstract

The invention discloses a cable flexibility testing device and a testing method thereof, the testing device comprises an upper support frame and a lower support frame, an upper pulley is mounted on the upper support frame, a plurality of symmetrical left mounting position holes and right mounting position holes are formed in the left side and the right side of the lower support frame, and lower pulleys mounted on the left mounting position holes and the right mounting position holes are symmetrical; the test method comprises the following steps: 1) preparing a cable sample, wherein the lengthis determined according to the maximum diameter OD of a cable finished product; 2) selecting the diameters of an upper pulley and a lower pulley and the radiuses and depths of pulley grooves of the upper pulley and the lower pulley according to the outer diameter range, and determining the pin distance; and 3) horizontally placing the cable sample on the two lower pulleys, then operating the electronic press to lower the upper pulley, stopping the upper pulley at the top of the cable sample, then pressing the upper pulley at a speed of 100mm / min, stopping pressing until a maximum force value is reached, and recording the maximum force value of the force in the test, so that the scientific and reasonable flexibility test can be carried out.

Description

technical field [0001] The invention relates to a cable flexibility testing device, which is used for testing the flexibility of cables. The present invention also relates to a testing method for the above-mentioned testing device. Background technique [0002] With the development of science and technology, key equipment in many fields, such as high-temperature boilers, charging piles, new energy electric vehicles, communication rooms, nuclear power plants, data centers, wind power generation, etc., these key equipment are small in size and small in internal space, requiring internal use The cable has high flexibility, which improves the convenience of installation, laying and use, and increases the utilization rate of equipment space. [0003] At present, the two tests related to cable flexibility in the cable industry and standards are flexure test and swing test. Flexure test: for 4mm 2 This test is required for flexible cables up to and including the size of the cabl...

AI Technical Summary

Problems solved by technology

This type of method has too many uncertain factors, no standardization, low repeatability, and the efficiency of cable verification is too low

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