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Testing device and method for multi-wire spiral contact in lifting steel wire rope

A test device and wire rope technology, which is applied in the direction of measuring device, test wear resistance, test material strength by applying repetitive force/pulsation force, etc., can solve the problems that cannot be completed, and achieve the effect of reliable function and simple structure

Active Publication Date: 2020-01-31
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, the friction and wear observation of the internal multi-filament helical contact of the steel wire rope cannot be completed with the existing technical means.

Method used

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  • Testing device and method for multi-wire spiral contact in lifting steel wire rope
  • Testing device and method for multi-wire spiral contact in lifting steel wire rope
  • Testing device and method for multi-wire spiral contact in lifting steel wire rope

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Experimental program
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Embodiment Construction

[0073] The present invention will be described in detail below in conjunction with specific embodiments.

[0074] Such as Figure 1-8 , lifting the internal multi-wire helical contact test device of the steel wire rope, including a worktable, an internal multi-wire helical contact mechanism of the steel wire rope placed on the workbench, a multi-wire internal loading mechanism of the steel wire rope and a roller loading mechanism;

[0075] The workbench includes four profile columns 47, two beams 46 welded between the profile columns, the workbench table top 1 supported by the four columns, the column 48 symmetrically welded on the workbench, and two beams welded on one side of the workbench. Rectangular holes for preventing interference on columns and workbenches.

[0076] In this embodiment, the central steel wire pulling and twisting mechanism is used to perform torsion and tension testing on the central steel wire in the steel wire strand. One end of the central steel wir...

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PUM

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Abstract

The invention discloses a testing device and a method for multi-wire spiral contact in a lifting steel wire rope. The device comprises a workbench, and an internal multi-wire spiral contact mechanismof a steel wire rope, an internal multi-wire loading mechanism of the steel wire rope and a roller loading mechanism all placed on the workbench. The testing device can realize conditions of the multi-wire spiral contact in the steel wire rope on one experimental device, and effectively simulates frictional wear between steel wires in the steel wire rope and frictional wear between steel layers.

Description

technical field [0001] The invention relates to a multi-filament spiral contact testing device and method inside a hoisting wire rope. Background technique [0002] The steel wire rope is a flexible hoisting structure with a three-dimensional helical space structure, which is twisted into strands at a certain twist angle, and then twisted into strands. Because it can transmit long-distance loads, it has a large bearing capacity, good flexibility, and smooth movement. Noise can withstand large axial loads, and has the advantages of low bending and torsional stiffness, so it is widely used in various practical engineering applications such as cranes, elevators, and mine hoists. However, due to its complex and changeable working conditions, including harsh working conditions such as high temperature, water (ice) and corrosive gas (liquid). As a result, the friction and wear of the steel wire inside the steel wire rope is serious, reducing the service life of the steel wire rop...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N3/38G01N3/02G01N3/04
CPCG01N3/02G01N3/04G01N3/38G01N3/56G01N2203/0005G01N2203/0026G01N2203/005G01N2203/028G01N2203/0423G01N2203/0676G01N2203/0682
Inventor 彭玉兴黄坤朱真才卢昊曹国华周公博沈刚徐春明王方方
Owner CHINA UNIV OF MINING & TECH
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