摘要
为避免露天煤矿因挖掘机失修造成大的机电事故,以WK-35和WK-10B挖掘机在运行中遇到的挖掘机故障进行研究,采用失效树分析法对齿轮的轮齿折断、齿面磨损、齿面点蚀和齿轮轴断裂等失效形式进行分析,得出齿轮失效的具体原因。基于以上研究,从挖掘机及相应的配件采购、齿轮润滑、油液监测等方面,提出相应的预防措施,并经过实践验证了以上预防措施可有效降低挖掘机齿轮发生故障的概率。
In order to avoid failures caused by the inadequate maintenance of excavator, the paper researched excavators faults happened in practice based on WK-35 and WK-10B excavators.It also analyzed four failures modes of gear broken teeth,gear tooth wear, gear tooth sur- face pitting and gear shaft fracture by the analysis method of failure tree,the specific reasons of gear failure was got.It was also indicated the preventive measures from the aspects of excavator and its corresponding parts procurement, gear lubrication, oil monitoring, and others, after the actual application, it showed that these preventive measures for reducing the gear lubrication oil monitoring of excavator gear was effective.
出处
《煤炭科学技术》
CAS
北大核心
2014年第1期69-71,111,共4页
Coal Science and Technology
关键词
挖掘机
齿轮
失效树
失效形式
预防措施
excavator
~ear
fault tree
failure modes
preventive measures
