Multiaxis fretting corrosion fatigue damage monitoring device and multiaxis fretting corrosion fatigue damage monitoring method for kilometer deep shaft hoisting rope

Abstract

The invention discloses a multiaxis fretting corrosion fatigue damage monitoring device and a multiaxis fretting corrosion fatigue damage monitoring method for a kilometer deep shaft hoisting rope. The device comprises a fretting system arranged on a base rack, a tension-torsional fatigue system and a constant-temperature corrosion system, wherein the constant-temperature corrosion system comprises an anti-corrosion tank, a constant-temperature control system, a cooling system and an electrochemical corrosion system; the fretting system comprises an upper loading unit, a lower loading unit and a fatigue steel wire; the upper loading unit comprises a clump weight, an anti-corrosion linear guide rail, a two-dimensional force sensor, an anti-corrosion loading steel wire clamp and a loading steel wire; the lower loading unit comprises a loading clump weight, an anti-corrosion fiber rope, a guide bracket, a guide pulley, an anti-corrosion linear guide rail and a friction gasket; the tension-torsional fatigue system comprises an angular displacement sensor, a double-shaft motor, a torque sensor, a fatigue steel wire clamp, a tension sensor and an electric cylinder. The device and the method are capable of realizing multiaxis fretting corrosion fatigue test for the kilometer deep shaft hoisting rope under different temperatures, different corrosion liquid PH values and multiaxis fretting fatigue parameters.

Description

Technical field [0001] The invention patent relates to a multi-axis fretting corrosion fatigue damage monitoring device and method for a thousand-meter deep well hoisting wire rope, which is used to study the pulling-twisting multi-axis of a thousand-meter deep well hoisting wire rope under different corrosive solution media, temperature environments and multi-axis fretting fatigue parameters The evolution mechanism of fretting corrosion fatigue damage. Background technique [0002] In my country, 53% of the proven coal resources are buried deep below the ground of one thousand meters. The multi-rope friction hoisting system (including hoist, hoisting wire rope, hoisting container, etc.) has large hoisting capacity, high hoisting height, and fast hoisting speed. , The advantages of high safety factor and small size of the machine are widely used in the lifting of a kilometer deep vertical shaft, which is responsible for the tasks of lifting coal, lowering materials, lifting person...

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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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