车辆在长期使用后,有的车辆会出现制动蹄片偏磨现象,通过调整偏心支点销后,有的下蹄片制动间隙可调正常,上蹄片制动间隙过大,或者相反。对于这种一侧制动间隙过大,调整不易时,修理中通常采用“穿铁鞋”的方法,即在间隙大的制动蹄一端加一块薄铁皮来调整制动间隙,以恢复制动效果。 After long-term use of the vehicle, some vehicles may experience eccentric wear of the brake shoe. After the eccentric support pin is adjusted, some of the brake shoes may have normal brake clearances, and the brake shoe clearance may be excessively large or vice versa. For this side of the brake gap is too large, difficult to adjust, the repair is usually used “wear iron shoes” approach, that is, at the end of a large brake shoe plus a thin metal sheet to adjust the brake clearance to restore the brake effect.