掘进机常见故障及分析

Analysis of common faults of driving machine

针对掘进机的常见故障问题对它们进行了分析,在机械方面,包括机体跑偏、齿轮磨损、煤岩粉尘增多,截齿产生火花、截齿失效等,其中截齿失效表现最为突出,具体表现在：截齿磨损、合金脱落、合金折断、齿身弯曲、齿身折断、截齿丢失等：液压方面,在系统的运作过程中,管路中的液体常会因快速换向和阀门的突然关闭而引发液压冲击,液压卡紧是另一种主要的故障表现形式,为以后进一步研究掘进机提供了帮助。

Common troubles of the tunneling machine are analyzed.In mechanical aspect,among machine running offside,gear wheel wear and tear,coal rock dust increase,cut tooth producing sparks,cut tooth losing efficiency losing is prominent,which shows concretely as follows:cut tooth wearing and tearing,alloy coming off,alloy broken,the tooth body crooked,cut tooth losing etc.In hydraulic pressure respect,in the course of systematic operation of the system,the hydraulic pressure would cause impact because the liquid in the pipeline is reversing fast and the valve suddenly closes.It is another kind of main form of expression of troubles that the hydraulic pressure card is tight.It will provide help for further study on tunneling machine.