车轮在运用中完成以下几方面的任务:车辆在线路上运行时的导向,传递制动力,在机车上还传递牵引力,承受车辆的重量及裁荷,还经常当作制动盘用。本文研究了采用车轮踏面制动时对闸瓦的影响。车轮抱死时的损伤或故障在运行时,如果发生车轮抱死,通常轮轨间小的接触面积变大,这是因滑行而产生热量,使轮辋(整体车轮)的滑行区域加热。轮辋热至很高的温度,致使材料的珠光体中的渗 Wheel in the use of the completion of the following tasks: When the vehicle is running on the line guidance, transfer braking force, the transmission of traction in the locomotive also to withstand the weight of the vehicle and the load, but also often used as a brake disc. This paper studies the effect of braking on wheel brakes using wheel tread brake. Injury or failure during wheel lock In the event of a wheel lock, the small contact area between wheel and rail is usually increased. This is due to the heat generated by taxiing, which heats up the area where the wheel rim (whole wheel) slides. The rim is hot to very high temperatures, causing permeation in the material’s pearlite