货车提速转向架结构探讨

Bogie Structures of Speed-Rising Freight Cars

分析了现行的转8AG、转8G、转K2、摆动式转向架的结构和性能及运用中存在的问题及转8G在运用中故障产生的原因.指出三大件式转向架无法适应货车提速的需要.适应铁路货车提速的转向架应满足下列基本要求:正常运行速度为120～130km/h;轮轨磨耗、轮轨接触应力与现行的货车转向架相当.

The structures and properties of Z8AG, Z8G and ZK2 bogies, as well as the problems often encountered in their operation, are analyzed. It is pointed out that the traditional threepiece bogies cannot be applied to the speedrising of freight cars. The bogies suitable for the purpose must meet the following basic demands: the maximum running speed is at least 120 to 130 km/h, and the wearing rate and wheel/rail contact stresses should not be larger than those of the traditional bogies.