This paper sets forth the fact that the eccentric action of coil spring is an important factor in the causation of abnormal vibration of vehicle and severe wear on bolster guide.
本文指出螺旋弹簧有偏离中心的弹性作用，是引起车辆不正常振动和摇枕纵向挡严重磨损的一个重要因素。
2
The load spectrum of the bolsterspring is determined by means of establishing the mechanics model of bolster and spring of Zhuan 8a type bogie, and by using a known load spectrum of the bolster.
An automatic inspection and grouping of the bolsterspring is realized with PLC as the control unit and linear encoder and rotary encoder as the measuring units.