一、制动机方面的原因目前铁路上应用最为广泛的主型制动机是自动空气制动机,在运用中空气制动机必须具备缓解的稳定性和制动灵敏度。车辆在长期运行中受到各种因素的影响,例如检修不到位,活塞阀块磨耗长时间没检修,油脂过多,天气寒冷油脂凝固等都可引起制动机作用不良而造成轮轨滑行,导致车轮擦伤。 First, the reasons for the brake machine At present, the most widely used main railway brake system is automatic air brake, air brake in use must have to ease the stability and braking sensitivity. Vehicles in the long run by a variety of factors, such as maintenance is not in place, the piston valve block wear for a long time without overhauling, too much oil, cold weather, can cause freezing of oil and other adverse effects caused by sliding wheel and rail, resulting in Wheel scratches.