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目前,对汽车制动性能的检测,大多数采用滚筒反力式制动试验台。被测车的车轮放置在试验台的两个滚筒上,滚筒由电动机驱动并带动车轮旋转,当对被测车轮施以制动时,车轮给滚筒以与驱动方向相反的力,该力与制动力大小相等、方向相反。滚筒作为活动路面,支承被测车辆并承受和传递制动力,是制动试验台最重要的部件。滚筒的形式比较多,其中有一种滚筒由圆柱钢筒外加涂敷层组成。涂敷层材料有金属颗粒、
At present, most of the testing of the braking performance of the car adopts the roller anti-braking test stand. The wheel of the car to be measured is placed on two rollers on the test bed. The roller is driven by the motor and drives the wheel to rotate. When braking is applied to the wheel under test, the wheel gives the roller an opposite force to the driving direction. Motive power is equal and in the opposite direction. Roller as the active pavement, supporting the vehicle under test and transmitting and transmitting braking force, is the most important part of the brake test rig. There are many types of drums, one of which consists of a cylindrical steel cylinder plus a coating. The coating material is made of metal particles,