检修客车落车后,同一轴箱的两个圆弹簧高度差,转向架构架两端与轨面的垂直距离(简称四角高)和车钩高度等,经常达不到规定要求。 产生这些问题的生要原因是:(1)弹簧刚度弱,标牌上刻打的自重下高度值与实际值不符。(2)转向架下心盘面距轨面(自重下)高度值偏低,造成落车后的车钩偏低。(3)相关配件接近更换期限。 Overhaul passenger car, the same axle box two round spring height difference, bogie frame at both ends of the vertical distance with the rail surface (referred to as the four corners of the height) and the hook height, often fail to meet the requirements. Birth to these problems are due to: (1) the spring stiffness is weak, the sign engraved under the weight of height and the actual value does not match. (2) under the bogie heart plate from the rail surface (under weight) height value is low, resulting in low after the car hook. (3) related accessories near the replacement period.