Mine hoisting steel wire rope abrasion area and steel wire rope safety coefficient prediction method

Abstract

The invention relates to a mine hoisting steel wire rope abrasion area and steel wire rope coefficient prediction method, and belongs to the technical field of safety of mine hoisting steel wire ropes. The steel wire rope abrasion area and safety coefficient prediction method comprises the following steps that (1) according to hosting system parameters, dynamic tension of each position of the steel wire rope in the lifting process is calculated through lifting dynamics; (2) micro-motion parameters among steel wires inside the steel wire rope are calculated in the lifting process; (3) the abrasion area of the steel wires is calculated by combining the micro-motion parameters and the steel wire abrasion coefficient acquired through an experiment; (4) summation of all abrasion areas of the steel wires is performed to obtain the abrasion areas of the steel wire rope; and (5) the safety coefficient of the steel wire rope is obtained by calculating the cross sectional area reduction amount of the steel wire rope. The method has the advantages that the abrasion of the steel wire rope in the using process is considered, the abrasion area and the safety coefficient of the mine hoisting steel wire rope in the hoisting process can be predicted, and the actual bearing area of the steel wire rope which changes along with the use time and the safety coefficient of the steel wire rope are obtained.

Description

technical field [0001] The invention relates to the technical field of mine hoisting wire rope safety technology, in particular to a method for predicting the wear area of ​​a mine hoisting wire rope and its safety factor. Background technique [0002] At present, in the design stage of the mine hoisting system, the steel wire rope can only be selected from the aspects of structure, diameter, and breaking force of the steel wire rope, and there is a lack of quantitative prediction methods for the dynamic evolution of the hoisting wire rope wear and safety factor during service. It is impossible to predict the service life and reliability of hoisting wire ropes. [0003] The hoisting wire rope is connected to the hoist and the hoisting container, and is responsible for the task of transporting coal, production equipment and coal mine workers. Its bearing strength and service life are directly related to the normal production of the coal mine and the safety of personnel. Duri...

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Problems solved by technology

[0004] Most of the existing literature is researched on the mechanical model of the steel wire rope or the wear or fatigue life of the steel wire inside the steel wire rope. However, it has not been seen that the mechanical model of the steel wire rope is associated with the wear model of the steel wire to realize the prediction of the wear amount of the steel wire rope and its safety factor. There are reports

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