【摘要】 通过分析货车L-C组合制动梁在车辆上出现的各种严重问题,深入探讨L-C制动梁在设计与工艺方面具体存在的问题。提出了通过提高非工作态的预应力,来减小L-C制动梁在工作状态时交变的疲劳应力。同时,通过改变零件的配合类型,来提高制动梁在动载荷下的寿命。更多还原

【Abstract】 The paper deeply studies L-C brake beam of freight car and finds some questions about it in the way of design and technique through analysis of the failure happened on L-C brake beam.It is suggested to increase pre-stress of L-C brake beam on the non-working time,which can further reduce stress on working time.Meanwhile,by changing the types of component matching the life of L-C brake can be increased on the condition of dynamic-load.更多还原