列车管路连接密封性能试验研究  

Experiment research on sealing performance of train pipe connection

作　　者：敬俊娥[1] 钟睦[2] 

机构地区：[1]南车青岛四方机车车辆股份有限公司,山东青岛266111 [2]中南大学轨道交通安全教育部重点实验室,湖南长沙410075

出　　处：《电力机车与城轨车辆》2013年第3期37-40,共4页Electric Locomotives & Mass Transit Vehicles

基　　金：国家科技支撑项目(2009BAG12A01)

摘　　要：经历长时间运行后,列车管路连接接头的密封有可能失效。针对这一问题,通过静态试验和动态试验,对列车上常用的螺纹式、卡套式、压紧式和快速接头连接管路的密封性进行试验,分析各种因素对其密封性能的影响。试验结果表明:对于螺纹式和压紧式接头连接管路,紧固力矩和密封圈的寿命是影响密封性的主要因素;对于卡套式接头连接管路,管件及接头的精度、紧固力矩和管件对中度是影响密封性的主要因素;对于快速接头连接管路,管子的硬度、插入长度和切口不平度是影响密封性的主要因素。After long time run, connection adapters of the train pipes maybe leak. To solve this problem, static and dynamic experiments have been carried on with four kinds of the pipe connection, such as screw type, sleeve type,pressing type and quick fitting type,and the influence of various factors has been analysed. The results show that the fastening torque and sealing ring life are the most important factors for the screwed connection and pressing connection. Manufacturing accuracy of the pipe and adapter,fastening torque and pipe centering are the major factors for the sleeved connection. Hardness, inserting depth and unevenness of the pipe are the major factors for the quick fitting connection.

关 键 词：列车 管路 接头 密封 试验 

分 类 号：U260.14[机械工程—车辆工程]