现代有轨电车6 号单开新型道岔设计  

Design of the New No.6 Single Turnout with 60R2 Grooved Rail for Modern Trams

作　　者：闫宇青[1] YAN Yuqing(China Railway Baoqiao Group Co.,Ltd.,Baoji,Shaanxi 721006,China)

机构地区：[1]中铁宝桥集团有限公司,陕西宝鸡721006

出　　处：《水利与建筑工程学报》2023年第5期157-162,共6页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金项目(51778484)。

摘　　要：为满足现代有轨电车正线道岔的实际需求,提出一种新型的有轨电车60R2槽型钢轨6号单开道岔结构,通过科学设计与理论检算方法分析6号单开新型道岔的平面线型、转辙器结构及辙叉及护轨结构的可靠性、安全性和养护维修的方便性。研究结果表明:在道岔转辙器设计时,引入“直+曲”组合尖轨线型和采用弹性可弯结构可消除跟端活接头结构的调道病害和道岔的不平顺性;采用合金钢尖轨的跟端固定结构能很好的限制尖轨水平、垂直、纵向等运动;采用上下层焊接的深浅槽式合金钢组合辙叉结构,能延长辙叉服役寿命,提高现代有轨电车侧向通过交叉渡线的安全性。In order to meet the actual needs of modern tram mainline switches in urban rail transit,a new type of No.6 single turnout with 60R2 grooved rail has been developed for modern tram line.Through scientific design and theoretical calculation methods,the reliability,safety,and convenience of maintenance of the plane line type,switch structure,frog and guard rail structure of the No.6 single turnout were studied and analyzed.The results are as follow.In the design of the turnout switch,the introduction of a"straight+curved"combination switch rail line and the use of an elastic and bendable structure have eliminated the track adjustment defects and unevenness of the turnout caused by the trailing end movable joint structure;The heel fixed structure using alloy steel pointed rails can effectively limit the horizontal,vertical,and longitudinal deformations of the pointed rails;A deep and shallow groove type alloy steel composite frog structure with welded upper and lower layers has been used to extend the service life of the frog and improve the safety of modern trams passing through the cross crossover laterally.

关 键 词：现代有轨电车 槽型钢轨 合金钢 道岔设计 

分 类 号：U482.1[交通运输工程—载运工具运用工程] U213.6[交通运输工程—道路与铁道工程]