液压支架平衡千斤顶失效原因分析和预防措施  

Preventive Measures and Invalidation Reason Analysis on Hydraulic Support's Equilibrium Jack

作　　者：尚心志 徐尚信[2] 王旭[1] 袁广[1] 刘铁军[1] 郑丽伟[1] 

机构地区：[1]三一重型装备有限公司,沈阳110027 [2]北京煤炭科学研究总院安全分院,北京100013

出　　处：《煤矿机械》2010年第10期180-181,共2页Coal Mine Machinery

摘　　要：平衡千斤顶是两柱掩护式支架的重要部件,对支架的性能影响很大。掩护式液压支架在煤矿生产中多次出现因平衡千斤顶失效造成严重的事故。为了预防此类事故的发生,列举了以往平衡千斤顶失效的主要形式并分析其原因,最后提出相应的预防措施。Equilibrium jack is the very important part of a two leg shield support.It affects the performance of the hydraulic support significantly.Lots of serious accidents had happened,the key reason is the failure of equilibrium jack.Equilibrium jack failure modes and reasons were listed and appropriate preventive measures were proposed to prevent similar accidents

关 键 词：平衡千斤顶 两柱掩护式支架 预防措施 

分 类 号：TD355[矿业工程—矿井建设]