Device and method for testing anti-slip performance of mine hoisting friction lining

Abstract

A test device for the anti-skid performance of mine hoisting friction linings, the device includes a positioning platform, a tension loading device, two tension positioning devices, a wire rope limit device, a wire rope dragging device, two radian positioning devices and a pad loading device, all components The device is arranged on the positioning platform along the circumferential direction, and the two radian positioning devices are arranged symmetrically on both sides of the liner loading device at equal angles. Based on hydraulic cylinder loading and stepless wire rope dragging, the normal pressure and friction force on the friction liner are simulated. , use the two-radian positioning device arranged at equal angles to simulate the radian of the reel, and use the endless wire rope to drag to realize the friction and wear shape of the friction lining under different wire rope transmission speeds, different positive pressures, and different friction distances. The friction coefficient of the friction liner can effectively simulate the high-speed sliding friction condition of the liner, so that the friction liner with different rope groove radians and diameters can be tested, and the anti-skid performance of the friction liner can be accurately evaluated.

Description

technical field [0001] The invention relates to a device and a method for testing the anti-skid performance of a friction lining, in particular to a device and a method for testing the anti-skid performance of a friction lining suitable for mine hoisting. Background technique [0002] As the main mine hoisting equipment, the vertical shaft hoist is responsible for the important tasks of lifting coal gangue, lowering materials, and lifting personnel and equipment. It is the connection hub between the underground of the coal mine and the ground, and frictional lifting plays a dominant role. The friction lining is installed on the surface of the reel, and the friction between it and the steel wire rope is used to drag the lifting container up and down. When the friction lining fails, there will be relative sliding between the steel wire rope and the friction lining, which will cause the wear of the steel wire rope, and even cause major vicious accidents such as slipping and fal...

AI Technical Summary

Problems solved by technology

The above research mainly has the following problems: First, the theoretical research on fretting wear, impact wear, and sliding wear of a single type of liner cannot be uniformly tested on friction liners with different rope groove radians and diameters; second, the main The actual lifting process is simulated by pulling the steel wire rope and the friction lining relative to each other in a straight line. However, the rope groove of the real friction lining is generally curved, and the steel wire rope and the friction lining are in arc contact, which makes it impossible to accurately evaluate the wear pattern of the friction lining. ; Thirdly, it is difficult to simulate continuous high-speed sliding friction due to the limitation of wire rope diameter, minimum reel diameter, and reel capacity when the wire rope is used to pull in a straight line

Therefore, it is necessary to study an anti-skid test device, which can perform static friction and dynamic friction tests on friction linings with different rope groove radians and diameters, especially the anti-skid test under high-speed sliding of steel wire ropes, so as to test different types of friction linings produced by various manufacturers. It is of great significance to ensure the safety of friction lifting by standardizing the friction lining market and ensuring the anti-skid performance of the friction lining. However, there is currently a lack of corresponding testing devices.

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