矿用挖掘装载机LUDV系统研究  

Research on LUDV System of Mine Loader-digger

作　　者：王子雷[1] 

机构地区：[1]天地科技股份有限公司建井研究院,北京100013

出　　处：《煤矿开采》2013年第3期40-42,共3页Coal Mining Technology

基　　金：十一五国家科技支撑计划:遇险人员快速救护关键技术及装备(2007BAK23B04)

摘　　要：分析了煤矿挖装机常用的齿轮泵定量液压系统和负荷传感控制液压系统的优缺点。研究了负载独立流量控制系统(LUDV)的液压原理,指出该液压系统的各执行器流量与压力无关,而只与操作阀开口大小相关。根据该系统负载、速度及变化规律,确定了合理的调速控制方案和液压过载保护方式。现场应用表明,LUDV系统性能优良,能满足岩巷掘进机械施工的要求。This paper analyzed merit and demerit of gear pump＇ system usually used in mine loader-digger. It researched hydraulic s fixed delivery hydraulic system and load sensing control hydraulic mechanism of LUDV, and indicated that flow of every performer was independence from pressure and related to opening size of operation valve. Rational speed control projection and hydraulic overload pro- tection manner was determined based on the load, speed and variation rule of this system. Application showed that LUDV system had high performance and could meet requirement of driving machinery for rock roadway construction.

关 键 词：挖掘装载机 LUDV系统 液压系统 操作阀 

分 类 号：TD422.3[矿业工程—矿山机电]