A friction lining-hoisting wire rope dynamic friction transmission test device and method

Abstract

The invention discloses a friction liner-hoisting steel wire rope dynamic friction drive test device and a friction liner-hoisting steel wire rope dynamic friction drive test method. The device comprises a base frame, a driving mechanism, a friction drive mechanism, a surrounding angle adjusting mechanism, a shock excitation mechanism, a steel wire rope and a condition monitoring mechanism, wherein the base frame comprises a stand column, a lower support platform and an upper support platform; the driving mechanism comprises a motor and a torque sensor; the friction drive mechanism comprises a friction wheel and a brake device; the surrounding angle adjusting mechanism comprises a C bracket and an adjusting wheel; the shock excitation mechanism comprises a transverse shock excitation mechanism and a longitudinal shock excitation mechanism; the condition monitoring mechanism comprises a steel wire rope tension monitoring device, a dynamic contact monitoring device, a steel wire rope vibration monitoring device and a micro-slippage monitoring device. After the device and the method are adopted, the dynamic friction drive characteristic between a friction liner and a hoisting steel wire rope can be simulated in a friction hoisting system when the hoisting steel wire rope is in a dynamic coupling vibration state, so that various changes in the friction drive process under the actions of transverse vibration, longitudinal vibration and transverse and longitudinal coupled vibration can be researched.

Description

technical field [0001] The invention relates to a friction pad-hoisting wire rope dynamic friction transmission test device and method. Background technique [0002] Mine hoisting equipment is the necessary transportation equipment for coal mines. It is a large-scale key equipment for lifting coal, gangue, personnel, various materials and equipment along the shaft. It is the hub connecting the underground production system of the mine with the ground industrial square. With the mine mining going deep and the requirements of safe and efficient production in modern large-scale mines, the application of multi-rope friction hoists is becoming larger and larger, and with its large lifting capacity, large lifting height, high safety factor, low power consumption, and small machine size , low cost and other significant advantages, it is increasingly used in the mine hoisting of deep and ultra-deep mines. With the increase of mine mining depth, in order to improve the transportatio...

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Problems solved by technology

[0006] The friction test device between the friction liner and the steel wire rope includes: Patent No. 200510134988.1 discloses a high-speed friction test machine for the liner and the steel wire rope, using the plane method to realize different relative sliding speeds between the steel wire rope and the liner through the control system (0.5 m / s to 6m / s), however, the testing machine can only slide at a uniform speed in one direction, and cannot simulate the friction transmission behavior research under the vibration state; the patent No. 200810032468 has announced a bending fatigue state of a steel wire rope for elevators The test bench can carry out the observation test of the single bending fatigue state, the combined bending fatigue state in the same direction, and the combined bending fatigue state in the opposite direction, and can change various winding methods, wrap angles and tensions according to different actual needs. However, it cannot Analyze the dynamic contact and friction transmission behavior between the steel wire rope and the friction liner; Patent No. 201110436607.0 discloses a sliding friction tester for the friction hoist liner, which can study the overall sliding friction between the hoisting wire and the friction liner Behavior and its influence law of sliding velocity and sliding acceleration, but can not explore the influence of dynamic creep (small local slip) and slip state between the friction liner and the hoisting wire rope bent and wound on the friction wheel; patent No. 201220707814.5 discloses a friction-type hoist wire rope anti-skid device. By moving the brake seat, the liner clamps the lifting wire rope. The tooth-shaped staggered structure of the liner can compensate for the external wear of the wire rope in real time and avoid dangerous sliding of the lifting wire rope. The testing machine only studies the overall sliding friction behavior between the friction lining and the wire rope, and cannot investigate the dynamic creep (small local slip) and micro-slip behavior between the friction lining and the hoisting wire rope

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