提速道岔用改进型滑床板的结构研究  

Research on the Optimum Structure of Slide Bar Used for Speed-increase Turnout

作　　者：王阿利[1] 费维周[1] 

机构地区：[1]中铁宝桥股份有限公司,陕西宝鸡721006

出　　处：《铁道工程学报》2008年第3期15-19,共5页Journal of Railway Engineering Society

摘　　要：研究目的:针对提速道岔用滑床板存在扣压力失效、弹片与销钉出现裂纹、滑床台板表面阻力大、轨距调整困难等问题,改进和优化了提速道岔用滑床板的结构。研究结论:研制的改进型滑床板一方面能持久、可靠地扣压基本轨内侧,保持扣压力的恒定,另一方面能够方便、灵活地配合基本轨进行轨距调整;另外,滚轮滑床板减小了道岔转换阻力,降低了尖轨的不足位移,能确保道岔的转换可靠,满足了铁路快速发展对道岔滑床板的使用要求。Research purposes： The improvement and optimum are made for the structure of slide bar of speed - increase turnout for the purpose of solving the existing problems of it, such as failure of tightening force, cracks in spring shim and pin, large surface resistance of slide bed - plate, difficulty in gauge adjusting and so on. Research conclusions：On the one hand, the improved slide bar can consistently and reliably pressure the inner side of stock rail to keep the consistent pressure, on of stock rail. In addition, the slide bar can the other hand, it can be easily and flexibly adaptable to gauge adjustment reduce the switching resistance of turnout and insufficient displacement of switch rail to guarantee the reliable switching of turnout, which meets the requirement of railway for slide bar.

关 键 词：提速道岔 滑床板 优化 弹性扣压 减摩 轨距调整 

分 类 号：U213.6[交通运输工程—道路与铁道工程]