防爆液压绞车电液控制系统设计及试验  

Design and Test of Electrohydraulic Control System for Anti-Explosion Hydraulic Winch

作　　者：徐胜轲[1] 赵继云[1] 丁海港[1] 朱瑞[1] 韩国芝 石高亮[1] 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116

出　　处：《液压与气动》2014年第7期19-21,共3页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金项目(51175497)

摘　　要：针对目前防爆液压绞车存在调速精度低、平稳性差、自动化水平低、驱动与制动协同性差以及缺少状态监测系统、安全性差等问题,在原有JKY型液压绞车的液压系统基础上,增加电液比例控制阀、操纵手柄、控制器、旋转编码器等元件,构建了防爆液压电液比例控制系统,以实现液压绞车的闭环调速、制动力可调以及状态监测。在不同的工况下,对新绞车进行工业性试验,试验表明,采用电液闭环控制,液压绞车的自动化水平明显提高,调速精度更准,速度跟随特性更好,排除故障的时间明显减少,达到了设计的目的。Aiming at the anti-explosion hydraulic winch with low speed control precision, poor stability and low automation level, poor driving and braking cooperativity, poor security and lack of condition monitoring system problems of, we design an electrohydraulic proportional control system to achieve closed-loop drive by adding an electrohydraulic proportional control valve, a control handle, a controller, a rotary encoder and other components to the original hydraulic system of JKY hydraulic winch , in which the braking force is adjustable and the condition is monitoring. Then under different conditions, industrial test is conducted, and the test shows that after adopting the electrohydraulic closed-loop controI, the automation level of hydraulic winch improves obviously, and the speed regulation precision is better, the speed following improved, troubleshooting time significantly reduced.

关 键 词：防爆液压绞车 液压系统 闭环控制 设计 

分 类 号：TH137[机械工程—机械制造及自动化]