掩护式支架平衡千斤顶液压回路分析  

Analysis on Hydraulic Circuit of the Balance Ram in the Shield Support

作　　者：马利平[1] 廉自生[1] 

机构地区：[1]太原理工大学机械工程学院,山西太原030024

出　　处：《机械工程与自动化》2010年第5期10-13,共4页Mechanical Engineering & Automation

基　　金：国家"十一五"科技支撑计划资助项目(2007BAB13B01)

摘　　要：分析了目前掩护式支架普遍存在平衡千斤顶安全阀频繁卸液以及由于平衡千斤顶两腔供液不足而导致的支架支护能力下降等问题,探讨了采用平衡千斤顶浮动双向锁控制回路和平衡千斤顶两腔自动补液控制回路解决该问题的可行性,并分别在AMESim和MATLAB环境下对两种优化方案进行仿真分析。通过分析仿真结果可知:平衡千斤顶浮动双向锁控制回路可以有效解决安全阀频繁开启问题,而平衡千斤顶两腔自动补液控制回路可以显著增加主平衡区宽度,提高支架支护能力。This paper analyzed the common phenomena of the balance ram safety valve frequent opening and support capability reduction because of the fluid supplement shortage,discussed the feasibility of two optimal design projects,one applied the float reversible lock control,the other used the auto fluid supplement control.The two optimal design projects were simulated in AMESim and MATLAB respectively.The simulation results show that the float reversible lock control can effectively solve the problem of safety valve frequent opening and the auto fluid supplement control can significantly increase the width of balance area and raise the supporting capacity.

关 键 词：平衡千斤顶 浮动双向锁 液压回路 支架 

分 类 号：TD355.4[矿业工程—矿井建设]