铁道车辆车钩分离事故是当前铁路运输五害之一。由于车钩分离,将引起运行中的列车解体,车轮擦伤,甚至会引起列车颠覆的重大事故。笔者在学习钩缓理论书刊及各检修工艺文件的基础上,结合车辆检修生产实践,谈谈以2号车钩为主的车钩分离的原因和防止车钩分离事故的一些意见。 Railway car coupler separation accident is one of the five railway transport. Due to the separation of the coupler, it will cause the disintegration of the train in operation, the abrasion of the wheel and even a major accident that will cause the train to subvert. On the basis of learning publications of slow release theory and various overhauling technological documents, the author, combining with vehicle maintenance and production practice, talks about the reasons for the separation of the coupler with No. 2 coupler and some opinions on the accident prevention of the coupler.