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Preventing Loose Methods and Loosening of Close Parts with MG375/750 Shearer
Author(s): DING Zhiyong, MA Jisheng
Pages: 46-
47
Year: 2001
Issue:
4
Journal: COAL
Keyword: 紧固件; 防松; 偏心螺母;
Abstract: MG375/750双滚筒采煤机各大部件之间都采用螺栓紧固联结,由于采煤机在运行过程中要切割顶、底板及夹石层,机械振动特别大,采煤机紧固件经常发生螺母松动,降低了采煤机的可靠性.提出了使用高强度螺栓、锯齿形垫片组和新设计制造的偏心螺母这一防松新方法,着重介绍了偏心螺母的结构及其工作原理.
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