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Steel wire rope internal multi-wire spiral contact fatigue, wear and damage detection device and detection method

A contact fatigue and damage detection technology, applied in wear and damage detection devices, in the field of multi-filament spiral contact fatigue inside wire ropes, can solve problems such as affecting the reliability of wire rope use and accelerating wire rope fatigue and wire breakage.

Active Publication Date: 2019-07-05
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mine hoisting wire ropes are subject to cyclic tension and torsion coupling, leading to crack initiation, propagation and final fracture, which accelerates the fatigue and breaking of wire ropes and affects the reliability of wire ropes.

Method used

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  • Steel wire rope internal multi-wire spiral contact fatigue, wear and damage detection device and detection method
  • Steel wire rope internal multi-wire spiral contact fatigue, wear and damage detection device and detection method
  • Steel wire rope internal multi-wire spiral contact fatigue, wear and damage detection device and detection method

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Embodiment Construction

[0094] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0095] Such as Figure 1-14 As shown, the multi-wire spiral contact fatigue, wear and damage detection device inside the steel wire rope of the present invention is mainly composed of a support device, a fatigue steel wire loading assembly arranged on the support device, an intersecting angle adjustment mechanism and a positioning mechanism arranged on the support device. The intersection angle adjustment mechanism is used to adjust the intersection angle between the loading steel wire and the fatigue steel wire;

[0096] The positioning mechanism is used to drive the loading steel wire to contact the fatigue steel wire with a certain prestress;

[0097] The supporting device includes four bottom beams 14 surrounded by a rectangle, four supporting columns 8 symmetrically arranged on the bottom beams 14, and four reinforcing ribs 26 are arranged at the bott...

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Abstract

The invention discloses a steel wire rope internal multi-wire spiral contact fatigue, wear and damage detection device and a detection method. The device comprises a supporting device and a state monitoring device; and the supporting device is provided with a fatigue steel wire loading assembly and a steel wire loading assembly which is in spiral contact with a fatigue steel wire with a certain crossing angle and a pre-stress force. With the device of the invention adopted, the spiral contact fretting fatigue damage condition of a plurality of steel wires in a steel wire rope can be simulated;the torque, friction force, temperature field and friction coefficient of the steel wires inside the steel wire rope can be monitored in real time; a multi-steel wire spiral contact fretting fatiguefracture mechanism is revealed, and the fretting damage evolution of the steel wires and the fretting fatigue lives of the steel wires can be evaluated.

Description

technical field [0001] The invention relates to a multi-wire spiral contact fatigue, wear and damage detection device and method in a steel wire rope, especially suitable for simulating the compound micro-movement modes such as pull-down-pull and pull-twist in the multi-wire spiral contact form inside a steel wire rope, and used for monitoring the steel wire rope Apparatus and method for testing fretting fatigue and friction and wear behavior of internal multi-wire helical contact. Background technique [0002] The steel wire rope is twisted into strands with a certain twist angle, and then twisted into strands into ropes. It has a three-dimensional helical space structure. It has the advantages of large bearing capacity, good flexibility, smooth movement and no noise. It is widely used in mine hoists and cranes. , elevators and aerial ropeways and other fields. [0003] The steel wire rope is a complex component composed of many helical elements (steel wires or strands). D...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/26G01N3/56
CPCG01N3/08G01N3/26G01N3/56G01N2203/0026G01N2203/0067G01N2203/0073G01N2203/028
Inventor 彭玉兴徐春明朱真才卢昊王大刚江帆曹国华周公博沈刚
Owner CHINA UNIV OF MINING & TECH
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