DF_4型机车柴油机气门座研磨机改造探讨

Improvement of DF_4 locomotive engine valve seat grinder

简要介绍了气门座研磨机技术改造的必要性,分析其设计不合理地方,探讨了改造方案,现场实际运用表明改造合理,工作可靠,达到了生产的要求。

The necessity for improving DF_4 locomotive engine valve seat grinder is explained,the disadvantage of the grinder pointed out,and an improvement scheme proposed. By way of practice,it is shown that the improvement of the grinder is successful.