东风_4型机车牵引电机抱轴瓦设计中对节油考虑不甚完备,致使平时使用保养存在油位偏低、润滑不充分的问题。本文着重分析了原设计的不足之处以及因此造成的不良后果,并提出如何改造加油口,消除使用保养中发生的虚油位问题。 Dongfeng _4 locomotive traction motor axle bearing design considerations less fuel-efficient, resulting in the usual use of low oil level maintenance exist, the problem of inadequate lubrication. This article focuses on the analysis of the original design of the inadequacies and the resulting adverse consequences, and proposed how to transform the fuel filler port, the use of maintenance to eliminate the occurrence of the problem of virtual oil level.