重载条件下驼峰调速制式的研究

Research on Rail Car Rolling Speed Regulating Mode of Hump Yard under Heavy Load Conditions

本文进行27t轴重货车驼峰试验,发现重载条件下编组站驼峰存在制动能力不足的问题,将导致驼峰的效率和安全性都有所降低。为适应重载运输需求,对驼峰改造提出两个方案:分别在各制动位增加调速设备能力;集中在调车线内增设四部位减速器。本文就两种方案进行研究探讨,分析其优势和不足,选取典型站场的实际运行数据进行间接验证,重点通过构建仿真测试平台模拟两种方案在27t轴重条件下的溜放作业过程。研究结果表明:方案2在溜放作业效率和安全两方面都比方案1有较大提高。

This paper firstly introduced the test of 27 t-axle heavy freight cars in railway hump yards.The test showed that insufficient braking ability in the hump yard under heavy load conditions resulted in the decrease of efficiency and safety of the hump yard.In order to meet the demand for heavy load operation in hump yards,two schemes were proposed for hump yard modification.The first scheme was to increase the capacity of the speed regulating equipment at each braking position.The second scheme was to add the forth braking position within the shunting line.The two schemes were studied and their advantages and and disadvantages were analyzed.The actual operation data of typical hump yards were selected for indirect verification of the schemes.Based on the establishment of the simulation platform for hump yard break-up operation,the car rolling operation of each scenario was simulated on the platform under 27 t-axle heavy load conditions.The simulation data show that the second scheme has higher efficiency and safety than the first scheme,which will promote the development of heavy load railway.