采煤机液压调高系统改进  

Improvement of Height-adjusting Hydraulic System of Electrical Haulage Coal Winning Machine

作　　者：刘士阁[1] 刘文东[1] 张锋[1] 

机构地区：[1]三一重型装备有限公司,沈阳110027

出　　处：《煤矿机械》2011年第6期184-185,共2页Coal Mine Machinery

摘　　要：现在许多采煤机都选用平衡阀为液压锁,收到良好效果,用同样办法,应用到某型号采煤机液压调高系统却出现了问题,当采煤机滚筒由最高点开始下降时,滚筒和摇臂出现了抖动现象,通过对此问题分析,提出了改进办法,达到满意结果。At present,balance valves are employed as hydraulic lock and good results are received in most miners,however,these balance valves are implied in a sort of miner in same way,which brings about vibration of rock arm and rotary drum,with analyzing on shaking phenomenon from rotary drum of some kind of coal winning machine when it begin to descend at the highest position of rotary drum,a solution is provided and is satisfied.

关 键 词：采煤机 液压调高 平衡阀 抖动 

分 类 号：TD421.6[矿业工程—矿山机电]