驼峰重载车辆减速器的研制  

Development of Hump Heavy Haul Car Retarder

作　　者：杨峥[1] 高立中[1] 邱战国[1] 

机构地区：[1]铁道科学研究院通信信号研究所,北京100081

出　　处：《中国铁道科学》2007年第5期139-144,共6页China Railway Science

基　　金：国家科技部项目(2004EG123135)

摘　　要：在不改变驼峰调车场控制和传动方式的条件下,以现有重力式减速器为基础,研制重载车辆减速器。根据曲拐偏心距与传动压力关系的计算与分析,确定曲拐偏心距的选择范围,保证减速器性能的安全性;通过应力分析和计算,结合疲劳试验和有限元分析,确定关键零件的结构,满足减速器在重载条件下的机械强度要求;采用人性化设计,便于现场维护和维修。解决在低压传动条件下,实现减速器对重载货车的制动锁闭和缓解解锁的关键技术。满足轴重25 t重载车辆的运输需求,将重力式间隔制动减速器的使用寿命由原来轴重21 t时的2×106次,提高到轴重25 t时的3×106次。自2006年4月开始实地安装使用,其工作状态良好。Under the condition of not changing current hump yard control and driving type and on the basis of the existing gravity retarder, heavy haul car retarder is developed. According to computation and analysis of the relation between the eccentric distance of crank and the transmission pressure, the choice range for the eccentric distance of crank is defined to guarantee the security of retarder performance. Through stress analysis and the computation, and in combination with fatigue test and finite element analysis, the structures for key components are fixed, which can meet the requirements for the mechanical strength of the retarder under heavy haul condition. Humanization design is adopted to facilitate on-site maintenance and repair. The key technology of the brake locking and release for heavy haul freight cars applied by the retarder has been realized under low pressure transmission. The retarder can meet the transportation demand for heavy haul car with 25 t axle load. The service life of gravity spacing braking retarder is prolonged from the previous 21 t axle load 2×10^6 cycles to 25 t axle load 3×10^6 cycles. The retarder has been working well since its on the spot application in April, 2006.

关 键 词：重载车辆减速器 驼峰调车场 间隔制动 

分 类 号：U284.92[交通运输工程—交通信息工程及控制]