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大型的露天煤矿一般采用平地机来平整煤矿运输道路,平地机工矿恶劣,长时间作业后,经常出现螺栓松动现象。本文通过对GR215平地机进行螺栓振动测试,找出螺栓易出现松动的关键位置,并对螺栓松动的原因进行分析,进而提出相应的措施对关键部位进行改进,以期提高整机作业可靠性。
Large opencast coal mines generally use motor graders to smooth coal transportation roads. Hazardous motor graders lead to frequent bolt loosening after long hours of operation. In this paper, the bolt vibration test of GR215 grader is conducted to find out the key position where the bolt loosens easily and the cause of the bolt loosening is analyzed. Then the corresponding measures are put forward to improve the key parts, in order to improve the reliability of the whole machine.