铁路运输以安全为本,列车制动系统作用良好是列车安全运行的根本保证。由于工作中的偶然疏忽使列车或机车折角塞门关闭,将会使列车制动失灵而发生列车相撞的重大事故。另外,人为关闭机后折角塞门造成列车相撞的破坏事故确有发生。为了保证铁路运输的安 Safety-oriented railway transport, train braking system is a good guarantee for the safe operation of the train. As a result of accidental negligence in the work of the train or locomotive folding door closed, the train brake failure will occur and the train hit a major accident. In addition, the human-induced closure of the machine after the crash caused by the train collision occurred. In order to ensure the safety of railway transport