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一、问题的提出为了保持汽车制动性能,防止汽车制动跑偏,对于车轮制动器,应使制动蹄同制动鼓有良好的接触状态。 EQ140汽车制动鼓直径是φ420~(+0.38),制动蹄外圆半径是R210_(-0.47),一般情况下,制动鼓的半径大于制动蹄的半径。装配后,制动蹄同制动鼓理论上是线接触,接触的部位可能是制动蹄外圆的任何部位,必须通过转动蹄片轴和移动凸轮支座的办法进行调整,使制动蹄同制动鼓有良好的接触部位(通过调整臂调整凸轮轴转角的办法,不能
First, the issue raised In order to maintain the car braking performance, to prevent vehicle brake deviation, for the wheel brakes, brake shoes should make a good contact with the brake drum. EQ140 car brake drum diameter is φ420 ~ (+0.38), brake shoe outer radius is R210 _ (- 0.47), under normal circumstances, the brake drum radius is greater than the brake shoe radius. After assembly, the brake shoe is theoretically in line contact with the brake drum. The contact area may be any part of the outer circumference of the brake shoe and must be adjusted by turning the shoe shaft and moving the cam support so that the brake shoe Brake drum with a good contact parts (by adjusting the camshaft angle adjustment method can not