Experimental system for detecting broken wire of wire rope of hoist and detecting method thereof

Abstract

The invention discloses an experimental system for detecting a broken wire of a wire rope of a hoist and a detecting method thereof, and the experimental system comprises a bottom plate, a first support device, a second support device, a third support device and a detecting device, wherein the wire rope is sequentially wound around a pair of support wheels on the left side, a left tensioning wheel, a driving wheel, a right tensioning wheel, and a pair of support wheels on the right side and forms a closed loop; the detecting device comprises an excitation device and a detecting component; theexcitation device is arranged on the wire rope; and a Hall sensing array is sequentially connected to a conditioning device and a signal collecting device. The corresponding detecting method denoisesmultiple scale signals by improving the non-local mean denoising method, and uses the particle swarm optimized support vector machine model to quantitatively identify the broken wire. The experimentalsystem for detecting the broken wire of the wire rope of the hoist and the detecting method thereof perform signal acquisition and analysis under different working conditions of wire rope, realize the quantitative identification of broken wire, and have the advantages such as fast detection speed and non-contact.

Description

technical field [0001] The invention relates to the field of wire processing, in particular to an experimental system for detecting broken wires of hoist wire ropes and a detection method thereof. Background technique [0002] In modern industry, wire ropes are widely used in coal, transportation, construction, tourism and many other industries. Steel wire ropes are prone to damage such as wear, corrosion, broken wires, and local enlargement and reduction of rope diameters during use, which brings safety hazards to industrial production and equipment operation, and serious casualties. [0003] At present, domestic steel wire rope non-destructive testing methods have certain deficiencies in terms of reliability and accuracy. Traditional steel wire rope safety testing is based on experience. The method and equipment are not highly automated, most of them are large in size, inconvenient to install and disassemble, and the detection accuracy is not high. Some imported detection...

AI Technical Summary

Problems solved by technology

Steel wire ropes are prone to damage such as wear, corrosion, broken wires, and local enlargement and reduction of rope diameters during use, which brings safety hazards to industrial production and equipment operation, and serious casualties

[0003]Currently domestic wire rope non-destructive testing methods have certain deficiencies in terms of reliability and accuracy. , caliper measurement, electromagnetic and image recognition and other non-destructive testing methods, these testing methods and equipment are not highly automated, most of them are large in size, inconvenient to install and disassemble, and the detection accuracy is not high. Some imported testing equipment have high detection accuracy but are expensive

[0004]In addition, due to the harsh working environment of the wire rope, there are many interference factors, it is not convenient to shut down for maintenance, so it is required that the detection system can The degree of tightness realizes long-term non-contact quantitative detection

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