Silent wear-resistant track of wire and cable repeated bending testing machine

Abstract

The invention belongs to the technical field of cable performance testing, and relates to a silent wear-resistant track of a wire and cable repeated bending testing machine. The silent wear-resistant track of the wire and cable repeated bending testing machine comprises a combined sliding block and two SBR cylindrical guide rails arranged in parallel, and the combined sliding block slides on the SBR cylindrical guide rails; the integral combined sliding block comprises an upper rail wheel, an outer rail wheel, an inner rail wheel, a weight reduction steel plate, a fastening shaft A and a fastening shaft B; the integral combined sliding block is in central symmetry; the outer rail wheel and the inner rail wheel of the SBR cylindrical guide rails are vertically fastened on the lower surface of the weight reduction steel plate through the fastening screw A and the fastening shaft B, and the outer rail wheel and the inner rail wheel play a main sliding role. According to the silent wear-resistant track of wire and cable repeated bending testing machine of the invention, extremely few materials and a simple combination mode are adopted, the flexibility and deflection resistance of a wire and a cable in a drag chain can be more accurately simulated and tested, and the cracking degree of the insulation sheath of the wire under a certain number of times and the fracture condition of a wire core can be tested.

Description

technical field [0001] The invention belongs to the technical field of cable performance testing, and in particular relates to a silent and wear-resistant track of a repeated bending test machine for electric wires and cables. Background technique [0002] In today's society, with the rapid development of science and technology, people's demand for various electric devices is increasing (including automatic devices), and wires and cables are an important basic component of various electric mechanical devices. Wire repeated bending test machine is mainly used to simulate the softness and deflection resistance of wires and cables loaded in the towline, etc., to test the cracking degree of the insulation of the wire and the fracture of the wire core under a certain number of times, and to inspect the wire and cable. the quality of. The working part of this kind of machine is the track inside the machine. Most of the machines on the market now use Shangyin guide rail sliders fr...

AI Technical Summary

Problems solved by technology

The working part of this kind of machine is the track inside the machine. Most of the machines on the market now use Shangyin guide rail sliders from Taiwan, China. This kind of track has a complex structure, low noise and high precision under low-speed operation. , but in the case of high-speed operation, the noise is very loud, and the service life is greatly shortened. Once damaged, only a complete set of parts can be replaced, and the cost is relatively high; this is extremely unfavorable for resource conservation and environmental protection. Huge noise pollution is generated in the process, which brings extreme discomfort to the operator

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