HXN3系列内燃机车用单元制动器支撑轴断裂原因分析  

Analysis on the fracture causes of the unit brake’s supporting shaft for HXN3 diesel locomotives

作　　者：柳军 梁泽溥 LIU Jun;LIANG Zepu(Dalian Locomotive Department,China Railway Shenyang Group Co.,Ltd.,Dalian 116022,China)

机构地区：[1]中国铁路沈阳局集团大连机车监造项目部,辽宁大连116022

出　　处：《铁道机车与动车》2022年第8期44-48,38,I0002,共7页Railway Locomotive and Motor Car

摘　　要：随着和谐型内燃机车运用里程逐年增加,使用时间已逼近了C6修年限,在普遍重载、小运转、推驼峰等运用工况下,单元制动器的工作状态直接影响机车运行安全。通过对和谐型内燃机车装用的单元制动器部分悬挂铰接进行研究,分析其基础设计思路,校核设计方案,论证其设计合理性以及优化改善空间,提升机车运行可靠性。As the mileage of the HX diesel locomotives increases year by year,the service time is approaching the C6 repair life. Under the operating conditions of heavy haul,exchange operation,and hump-shunting,the working state of the unit brake directly affects the safety of locomotives. Through researching the articulated part suspension mode of the unit brake,we analyzed its basic design ideas, checked the design scheme, and demonstrated the design rationality and improvement space to improve the reliability of locomotive operation.

关 键 词：单元制动器 悬挂 支撑轴 固结 断裂 

分 类 号：U260.3[机械工程—车辆工程]