The Research And Analysis Of Vertical Shaft Friction Hoisting System

Lifting equipment in coal mine is one of the large fixed equipment of mine, its main task is to promote coal, coal gangue through the wellbore, shipping material, lift personnel and equipment, etc. Lifting equipment in coal mine is mine and the ground between the important hub of shipping material, personnel and equipment, known as the throat of the mine transportation, therefore in the exploration and production of the mine lifting equipment in coal mine has an indispensable status. So how can completely effective solution to the problem of mine hoist over rolling and improve the safety and reliability of the mine lifting equipment is become one of the important task to ensure coal mine safety production.Based on the vertical shaft friction hoisting system as an example, the main research content is as follows:1), through the relevant data access and vertical shaft friction hoisting system, in view of the vertical shaft friction hoisting system through analyzing the structure and characteristics.2), the vertical shaft friction hoisting system overwinding protection process research and analysis, and vertical shaft friction hoisting system are given respectively in different circumstances overwind on both sides of the wire rope tension and friction wheel contact formula, formula of wire rope and the promotion of the tension of the contact points of the container. Generally when roll shaft friction hoisting system happened, first through the braking system for brake, if not timely and effective braking system braking, braking device of overwind buffer and then will pass, if none of the braking system and overwind buffer device can carry on the brake to the hoisting system, finally will set the wellhead anti-collision beams braking protection.3), the vertical shaft friction hoisting system overwinding vessel displacement, velocity and acceleration of the research and analysis to determine the vertical shaft friction hoisting system of degree.4), the vertical shaft friction hoisting system overwinding protection in the process of the braking system of braking force, buffering device the size of the buffer force, the anticollision beam impact force and time to conduct research and analysis, select overwinding protection device. In view of the three kinds of protection in the process of friction wheel and the position of contact point on both sides of the wire rope tension and the tension of wire rope and improve container contact friction are studied to determine the vertical shaft hoisting system in the process of overwinding protection will slip line and broken line accident.5), USES the example of vertical shaft friction hoisting system in three volumes (put) protection in the process of displacement, velocity, acceleration, the friction of the contact points of the wheel and on both sides of the wire rope tension and the tension of wire rope and ascend container contact MATLAB simulation analysis.6), according to the results of the MATLAB simulation, and gives the conclusion of several kinds of practical application.This article summarizes the shaft friction hoisting system overwinding protection process of some of the basic research theory, through the vertical shaft friction hoisting system in the process of three kinds of overwinding protection slip line and broken line analysis and the calculation formulas to studied the security problems, has certain representativeness and universality and practicability.