某型号轻型客车挂挡困难原因分析与改进

A Type of Diesel Engine Oil Separation System Optimization

为解决某上市车型售后市场反馈换挡困难问题,对售后故障件数据分析,得到主要影响因素有离合器、换挡操纵机构及离合总泵。通过对售后故障件的检测,确定故障原因并提出改进措施,改良装配工艺、优化从动盘材料、增加散热槽数目、改良花键毂倒角及表面处理提升了离合器换挡稳定性;优化焊接工艺保证了换挡操纵机构的可靠性;改良清洁及装配工艺及运输方法解决了离合总泵漏油问题,最终解决了换挡困难问题。

In order to solve the difficult gearshift problem which is the feedback from the after-sales market,the invalid parts data has been analysised,which shows that the main influencing factors are clutch,gearshift control mechanism and clutch master cylinder.According to the test results of the invalid parts,the causes and improvement measures are proposed.The shift stability of the clutch had been improved according to optimizing the assembly process,the driven plate material,the spline hub chamfering and surface treatment,increasing the number of heat sink.welding technology optimization ensures the reliability of shift control mechanism.Improved assembly process and transportation method solved the oil leakage of clutch master cylinder.The difficult gearshift problem was solved.