Gasket sliding friction testing machine for mine friction hoisting machine

Abstract

A gasket sliding friction hoisting machine for a mine friction hoisting machine comprises a stand, wherein a tension sensor is arranged at the upper part of the right end of the stand; a tensioning hydraulic cylinder is arranged at the lower part of the right end of the stand; a roller is arranged at the left end of the stand and is erected in a bearing block on the stand through a roller central shaft; the roller central shaft is connected with a motor through a torque tachometer; the roller is wound by a steel wire rope; the upper end socket of the steel wire rope is connected with the tension sensor fixed at the upper part of the right end of the stand; and the lower end socket of the steel wire rope is connected with the tensioning hydraulic cylinder fixed at the right end of the stand. According to the gasket sliding friction testing machine, the sliding friction work condition between the gasket and the steel wire rope when the mine fiction hoisting machine slides can be simulated and gasket friction properties under the conditions of different sliding speeds and accelerations can be researched. The gasket sliding friction testing machine has the advantages of simple and compact structure, simple and convenient method, accurate test result and convenience for mounting.

Description

technical field [0001] The invention relates to a friction hoist liner sliding friction testing machine, which is especially suitable for simulating the sliding friction working conditions of the mine friction hoist liner and the steel wire rope, so as to study the tribological performance of the liner under different sliding working conditions. Background technique [0002] The mine friction hoist relies on the friction between the liner and the wire rope to transmit power. Under normal lifting conditions, the sliding speed between the liner and the wire rope is lower than 10mm / s; when a high-speed slipping accident occurs, the relative sliding speed between the liner and the wire rope increases rapidly at a certain acceleration, and the highest sliding speed can reach tens of meters per second. The tribological properties between the liner and the wire rope under different sliding conditions will directly threaten the safety and reliability of the mine friction hoist. Ho...

AI Technical Summary

Problems solved by technology

At present, based on the plane method (clamping the steel wire rope by two pads), research has been carried out on the friction tester between the liner and the steel wire rope. The application number is 201010567284.4, which discloses a "friction pad testing machine". The above two testing machines can only simulate low-speed (sliding speed lower than 10mm / s) sliding conditions; the patent number is CN200510134988.1, which discloses a "wire rope High-speed friction test machine with liner", the test machine can simulate the sliding condition of 0.5mm / s to 6m / s, but the sliding distance of the test machine is limited and cannot simulate the accelerated sliding condition

It can be seen that the existing liner and steel wire rope friction testing machine has the following problems: (1) the existing testing machine uses two liners to clamp the steel wire rope, and then twitches the steel wire rope to measure the friction performance of the liner, which is different from mine friction. The arc liner on the roller in the hoist does not match the actual sliding friction condition of the wire rope; (2) The existing testing machine cannot realize the accelerated sliding condition; (3) The sliding distance in the existing testing machine is limited, especially for high-speed sliding When the length of the wire rope is limited, it is impossible to achieve long-term sliding friction

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