综采面支架平衡千斤顶控制回路的分析与改进  

Analysis and Improvement of Support Balance Control Circuit in Fully Mechanized Mining Face

作　　者：孙宇 Sun Yu(Datong Coal Mine Group Electro-Mechanical Equipment Co.,Ltd. Central Machine Factory,Datong Shanxi 037001)

机构地区：[1]大同煤矿集团机电装备有限公司中央机厂,山西大同037001

出　　处：《机械管理开发》2019年第4期53-54,57,共3页Mechanical Management and Development

摘　　要：通过对目前常见的平衡千斤顶控制回路的分析,获得这些控制回路的优点和缺点,并根据平衡千斤顶容腔的压力特征,对目前现有的平衡千斤顶控制回路进行了改进。改进的控制回路可以将平衡千斤顶的有杆腔和无杆腔进行自动卸载负荷及补充油液,可以有效提高安全阀的使用寿命。Through the analysis of the common balance Jack control loop at present,the advantages and disadvantages of these control loops are obtained,and according to the pressure characteristics of the balance Jack cavity,the existing balance Jack control loop is improved. The improved control loop can automatically unload the balance Jack with and without the rod cavity and replenish the oil,which can effectively improve the service life of the safety valve.

关 键 词：液压支架 平衡千斤顶 控制回路 安全阀 

分 类 号：TD355.4[矿业工程—矿井建设]