新型高速铁路接触网腕臂与定位装置研究

Design on New Cantilever and Positioning Device of Overhead Contact System of High-speed Railway

对现有4种典型腕臂及定位装置的结构特点进行分析,并利用ABAQUS软件对4种腕臂结构及定位装置在非工作支最大工作载荷下的应力及挠度进行校核。结果表明:各结构在该受力情况下均能满足铁路标准中规定的应力和挠度要求。吸纳现有腕臂和定位装置的优点,在设计原则指导下,以功能需求为出发点,从技术合理性、经济性、感观适宜性综合考量分析后,推荐一种新型腕臂结构及定位装置方案。采用集约化设计理念,使腕臂及定位装置结构更加简洁、合理,零部件数量减小,整套装置的内在质量和外观品质均有所提升,具有创新性、简约化、安全性、经济性和便捷性特点。利用有限元软件对该方案在应力和挠度方面进行校验,结果满足标准要求。

In this paper,the structural characteristics of the four typical existing cantilevers and positioning devices of overhead contact system of high-speed railway were analyzed.The ABAQUS software was used to analyze the deflection and stress of the four kinds of cantilevers and positioning devices under the maximum working load.The results show that all the structures have met the deflection and stress requirements specified in the railway standard.Based on the advantages of the existing cantilever and positioning device,under the guidance of design principles,a new type of cantilever and positioning device with combination structure parts was designed based on the functional requirements under the comprehensive consideration and analysis of technical rationality,economy and sensory suitability.The scheme adopts an intensive design concept,which results in more concise and reasonable cantilever and positioning device,reduced number of parts,and improved intrinsic quality and appearance quality of the device.The device is characterized by innovation,simplicity,safety,economy and convenience.The results from the analysis using the finite element analysis software to analyze the stress and strain of the structure of the scheme have met the standard requirements.