axle-box

The main difference between various bogie frame is the structure and parameters of spring suspension system 、 the method of load transfer along vertical and lateral 、 the supporting of wheelset 、 the location of axle-box and the type and fixing of arresting gear and so on.

各种转向架构架的主要区别在于弹簧悬挂系统的结构与参数、垂向与横向载荷的传递方式、轮对支承方式、轴箱定位方式和制动装置的类型与安装等诸多方面。

And the design of axle-box suspension takes account of wheelset locating, wheel-rail lateral force and travel stability, etc., the friction damper method is, therefore, one of the key technology in axle-box suspension.

轴箱悬挂设计需要兼顾轮对定位、轮轨横向力和运行平稳性等多方面性能，因而摩擦减振方式仍然是轴箱悬挂的关键技术之一。

The locating stiffness of the axle-box pull rod has an important relation with the dynamics performance of the locomotive, it also has a very big influence to the critical speed of the locomotive.

轴箱拉杆定位刚度与机车动力学性能密切相关，同时对机车的临界运行速度也有很大的影响。