地铁车辆制动系统撒砂装置的应用

Application of Sanding of Brake System for Metro Vehicles

国内城市轨道交通项目中露天高架地铁线路逐渐增多,车辆在雨雪天气易发生车轮滑行现象,并导致冲欠标、紧急制动等问题。青岛地铁车辆配置了撒砂功能,用以改善轮轨间的黏着系数,提高车辆进站的停车精度,减少滑行对运营造成的影响。

The open-air elevated metro lines in domestic urban rail transit projects are gradually increased,the phenomenon of wheel sliding of vehicles is easy to occur in the rain and snow weather,which causes the problems of trainout of the station or away from the station,emergency braking and etc.The vehicles in Qingdao metro are equipped with sanding function to improve the wheel-rail adhesion coefficient,which increase the parking accuracy of vehicles in the station,and the impact of sliding on operation is reduced.