Device and method for monitoring multi-axis fretting corrosion fatigue damage of hoisting wire rope in thousand-meter deep well

Abstract

The invention discloses a multi-axis fretting corrosion fatigue damage monitoring device and method for hoisting a steel wire rope in a thousand-meter deep well. Corrosion-resistant box, constant temperature control system, cooling system, electrochemical corrosion system, micro-motion system includes upper loading unit, lower loading unit and fatigue steel wire, upper loading unit includes counterweight, corrosion-resistant linear guide rail, two-dimensional force sensor, Corrosion-resistant loading steel wire fixture, loading steel wire, the lower loading unit includes loading weights, corrosion-resistant fiber ropes, guide brackets, guide pulleys, corrosion-resistant linear guides, friction linings, tension-torsion fatigue system includes angular displacement sensors, double-axis motors , Torque sensor, fatigue wire clamp, tension sensor, electric cylinder. The invention can realize the multi-axis fretting corrosion fatigue experiment of the hoisting wire rope in a thousand-meter deep well under different temperatures, pH values ​​of corrosion solutions and multi-axis fretting fatigue parameters.

Description

technical field [0001] The patent of the invention relates to a multi-axis fretting corrosion fatigue damage monitoring device and method for hoisting steel wire ropes in a thousand-meter deep well, which is used to study pull-torsion multi-axis of hoisting wire ropes in a thousand-meter deep well under different corrosion solution media, temperature environments and multi-axis fretting fatigue parameters Evolution mechanism of fretting corrosion fatigue damage. Background technique [0002] In our country, 53% of the proven coal resources are buried deep below 1,000 meters. The multi-rope friction hoisting system (including hoist, hoisting wire rope, hoisting container, etc.) , high safety factor and small machine size are widely used in the hoisting of the kilometer deep shaft, and are responsible for the tasks of lifting coal, lowering materials, lifting personnel and equipment. "Coal Mine Safety Regulations" stipulates that the hoisting wire rope of the friction hoistin...

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Problems solved by technology

[0004] The experimental devices related to fretting fatigue are: Patent No. CN201510311531.7 discloses a fretting fatigue test method and testing machine with real-time adjustable contact load, which can realize fretting fatigue test with real-time change of contact load, and is used for research The influence of contact load, amplitude and frequency on the fretting fatigue damage mechanism, but the influence of torsional load, temperature and corrosion environment cannot be considered; Patent No. CN201410525508.3 discloses a steel wire multi-axis fretting fatigue test device and method, which can realize The multi-axis fretting fatigue experiment of steel wire under compound motion modes such as tension-tension fatigue, torsion and variable crossing angle swing, but the influence of corrosion and temperature environment factors cannot be considered; Patent No. CN201210062350.1 discloses a controllable test environment The multi-directional fretting fatigue testing machine and its test method can realize the research on the multi-directional fretting friction and wear behavior of materials in artificially controlled specific atmosphere and / or liquid environment, but the influence of torsional load and temperature cannot be considered; Patent No. CN200910182122 .6 A steel wire fretting fatigue testing machine and method are disclosed, which can realize the steel wire fretting fatigue test under the joint action of fretting wear and axial fatigue stress, but the influence of torsional load, temperature and corrosive solution environmental factors cannot be considered; patent No. CN200810304928.3 discloses an axial fatigue test method and device with superimposed wear loads, which can realize the axial fatigue and transverse wear effects of rigid specimens, but is not suitable for flexible steel wire specimens, and cannot consider torsional load, temperature and Influence of Environmental Factors of Corrosive Solution

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