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(一)后变速箱的惯性故障东风、东风2、东风3型内燃机车的后变速箱(东风2为前变速箱,为便于叙述,文中统称为后变速箱)在运用和检修中,当前经常出现两个惯性故障:一个是后变速箱从动轴前、后轴承孔惯性磨损,使箱体孔呈现深度为0.1～0.3毫米的偏磨扩大带。1977年1～10月份在我厂大修的内燃机车中,因后变速箱从动轴箱体孔磨损扩大的计有61台,占同期大修内燃机车总数的39.6％。从每月的发生率来看,趋势是增长的。随着内燃机车运用时间的增长,这个问题显得更为突出。另一个是从动轴后端
(A) rear gearbox inertia failure Dongfeng, Dongfeng 2, Dongfeng 3 diesel locomotive rear gearbox (Dongfeng 2 for the front gearbox, for ease of description, referred to herein as the rear gearbox) in the operation and maintenance, the current often There are two inertia failure: one is the rear gearbox driven shaft inertia wear of the front and rear bearing holes, so that the box hole depth of 0.1 ~ 0.3 mm eccentric wear expansion zone. From January to October 1977, there were 61 diesel locomotives undergoing overhaul in our factory, accounting for 39.6% of the total number of diesel locomotives undergoing overhauls in the same period. From the monthly incidence point of view, the trend is to grow. With the increasing use of diesel locomotives, the problem is even more prominent. The other is the driven shaft rear end