关键词: 煤矿液压绞车, 液压控制系统, 自动化控制, 闭环控制

Abstract: Abstract: Aiming at the problem of manual control of hydraulic system for the hydraulic winch in coal mine, proposed rehabilitation programs of electro-hydraulic proportional control for drive and braking systems, closed-loop control of hydraulic winch lifting speed and coordinated control of drive and braking systems are implemented, these effectively improve automation level and speed accuracy of coal mine hydraulic winch. Experimental results show that the scheme can effectively improve the speed control precision and stability of hydraulic winch, At the same time, the design of parallel dual system to further protect the safety of coal mine hydraulic winch.