采煤机外牵引顶部连接螺栓部位改进  

Improvements of Haulage Bar Top Connecting Bolt of Coal-winning Machines

作　　者：熊世伟[1] 张程霖 杜伟[1] 杨梅[1] 

机构地区：[1]太原矿山机器集团有限公司技术中心,山西太原030032

出　　处：《山西科技》2011年第5期109-110,共2页Shanxi Science and Technology

摘　　要：通过对采煤机外牵引顶部连接螺栓处结构的改进,避免了因内螺纹失效而导致外牵引的损坏;增加了主机架刚性,消除螺栓所受剪切力;加大螺栓连接板的焊接范围,防止焊缝撕裂。By changing the structure of haulage bar top connecting bolt of coal-winning machines,damage of haulage bar,caused by failure of inside screw thread will be avoided;rigidity of the main frame will be enforced and blade load on the bolt will be eliminated;welding ranges of bolt connecting board will be enlarged,preventing soldering laceration.

关 键 词：采煤机 外牵引 连接螺栓 

分 类 号：TD421.6[矿业工程—矿山机电]