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1.问题的提出目前,球芯折角塞门已在铁道车辆上广泛使用,该球芯折角塞门与锥芯折角塞门相比,具有密封性好,通风面积大,空气流动阻力小,作用灵活等优点,这极大地方便了列检员和调车员控制列车通路开闭和车辆安全摘挂作业。但是,这种球芯折角塞门在使用中也暴露出一些缺点:(1)由于球芯折角塞门手把明显,操作简单,会被人为关闭(如坏人搞破坏)或自然关闭(如货物列车运行中,捆绑货物的绳索缠绕手把后,拉动之到关闭位),如不及时发现,就会造成行车中车辆制动机失控,运行列车长大坡道放飏,极易造成恶果,给国家和人民造成损失;(2)球芯折角塞
1. Problems raised At present, the ball core hinge door has been widely used in railway vehicles, the core hinge door and cone core plug door, compared with a good seal, ventilation area, the air flow resistance is small, the role of Flexible, etc., which greatly facilitate the inspector and shunting train control train access opening and closing and vehicle safety peg operation. However, the ball-type plug has some shortcomings in use: (1) Since the ball-type plug has a clear and easy-to-handle handle, it can be shut down by human beings (such as a bad guy) or shut down naturally When the train is running, the ropes of the bundled goods are wrapped around the handle and then pulled to the close position. If not found in time, the brake of the vehicle will be out of control and the train running up the ramp will be easily thrown away. To the country and the people caused losses; (2) ball core corner plug