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1 问题的提出 洛阳车辆段配属的客车主要是22型和25型,其中装用206型或209型转向架的客车有223辆。该型转向架在运用中常出现闸瓦间隙调整螺栓折断的情况。自1997年4月1日客车提速后,在运用中因反复制动、缓
1 PROBLEM PROBLEMS The passenger cars allocated to Luoyang depot are mainly Type 22 and Type 25, of which 223 are equipped with 206 or 209 bogies. This type of bogie often appears in the use of brake shoe gap adjustment bolts broken situation. Since April 1, 1997 passenger car speed, in the use of repeated braking, slow