牵引齿轮是电力机车主要的传动部件之一。而韶山1型电力机车近几年来,小齿轮损坏情况日趋严重。据统计,宝鸡电力机务段仅在1978年,由于小齿轮损坏而更换200多个,造成电机临修达53次之多,占牵引电机总临修的35.6％。不但浪费数以万计的资金,而且直接影响机车的正常运行。对此问题,有关部门 Traction gears are one of the main drive components of electric locomotives. The Shaoshan 1-type electric locomotive in recent years, the increasingly serious damage to the pinion. According to statistics, only in 1978, the locomotive depot of Baoji changed more than 200 due to the damaged pinion, resulting in a total of 53 times of motor repair, accounting for 35.6% of the total maintenance of the traction motor. Not only was it a waste of tens of thousands of dollars, it had a direct impact on the normal operation of the locomotive. On this issue, the relevant departments