典型线路下重载机车胶泥缓冲器泄漏故障分析  

Leakage Failure Analysis of the Elastomer Buffer of Heavy Load Locomotive on Typical Line

作　　者：张海 金希红 曾燕军 肖乾 付伟 ZHANG Hai;JIN Xihong;ZENG Yanjun;XIAO Qian;FU Wei(The Ministry of Education Key Laborary of Conveyance and Equipment,Nachang Jiangxi 330013,China;The State Key Laboratory of Heavy Duty AC Drive Electric Locomotive Systems Integration,Zhuzhou Hunan 412001,China)

机构地区：[1]华东交通大学载运工具与装备教育部重点实验室,江西南昌330013 [2]大功率交流传动电力机车系统集成国家重点实验室,湖南株洲412001

出　　处：《润滑与密封》2018年第12期16-21,26,共7页Lubrication Engineering

基　　金：中车株洲电力机车有限公司科技研发项目(2017CJA002-1);中国铁路总公司科技研发项目(2015J007-C)

摘　　要：针对典型线路下重载机车使用的缓冲器QKX100出现的胶泥泄漏现象,使用铁科院纵向动力学计算软件进行典型线路下重载货运列车的纵向动力学计算;结合胶泥芯子的结构原理,分析钩缓系统故障产生的原因。分析结果表明:在持续的陡坡线路上,变坡度会引起车钩力的剧烈变化,而在进行循环制动时,列车的中后部出现较大纵向冲动;而在此种线路条件下,QKX100弹性胶泥缓冲器的作用也越频繁,因此缓冲器动密封圈的磨损就会加大,胶泥泄漏的也就越大。为了改善缓冲器工作状态,应采用适当的机车操作、合理的列车编组以及更严格的缓冲器生产管控。Aimed at the cement leakage phenomenon of the QKX100 buffer of heavy load locomotive on typical line,the longitudinal dynamics calculation of heavy load train was carried out by using longitudinal dynamic simulation software of CARS.Combined with structure principle of cement core,the cause of the trouble of the coupler buffer system was analyzed.It is found that on the continuous steep slope line,the change of slope will cause the sharp change of coupler force.While in the course of circulating braking,there is a great longitudinal impulse in the middle and rear part of the train.In these line conditions,operation of QKX100 is more frequently,the response frequency of the seal components of QKX100 is also greater.So the wear of sealing ring of buffer will increase,and its cement leakage is greater.In order to improve the working state of the buffer,proper locomotive operation,reasonable train formation and more strict buffer production control should be adopted.

关 键 词：重载机车 车钩缓冲器 弹性胶泥缓冲器 长陡坡线路 

分 类 号：U268.3[机械工程—车辆工程] TH136[交通运输工程—载运工具运用工程]