城市轨道交通均回流电缆与钢轨胶粘卡接方式研究  

Research on adhesive clamping mode between current-sharing and return cable and rail in urban rail transit

作　　者：刘力[1] 袁英强 张献恒 张胜龙[1] 李照星[1] Liu Li;Yuan Yingqiang;Zhang Xianheng

机构地区：[1]铁科院(北京)工程咨询有限公司,北京100081

出　　处：《现代城市轨道交通》2022年第2期93-99,共7页Modern Urban Transit

基　　金：中国铁道科学研究院集团有限公司基金课题(2019YJ178)。

摘　　要：文章首先阐述快速铜热焊、螺栓连接和低温钎焊 3 种均回流电缆与钢轨既有连接方法和特点,介绍胶粘卡接新型连接装置的结构设计和性能目标;然后通过有限元计算,验证胶粘卡接结构在预紧力和列车动载作用下的安全性;并通过接触电阻试验、浸水试验、载流量试验、温升试验、湿热老化试验和疲劳试验对设计目标值进行验证。验证结果表明该新型连接方式能够克服既有连接方式的弊端,具有良好的推广应用前景。This paper expounds the methods and characteristics of three kinds of existing connections between current-sharing and return cable and rail with connection method of rapid copper thermal welding,bolt connection and low-temperature soldering.The structure design and performance target of a new type of adhesive clamping device are introduced.The safety of adhesive clamping structure under preload and train dynamic load is verified by finite element calculation.The design target values are verified by contact resistance test,water immersion test,current carrying capacity test,temperature rise test,hydrothermal aging test and fatigue test.The new connection mode overcomes the disadvantages of the existing connection mode and has a good prospect of popularization and application.

关 键 词：城市轨道交通 均回流电缆 钢轨 胶粘卡接方式 接触电阻 电气性能 

分 类 号：U223.8[交通运输工程—道路与铁道工程]