装载机动臂液压缸软管总成失效模式分析  

Failure Mode Analysis of Boom Cylinder Hose Assembly for Loader

作　　者：朱琼 郑小红 李光辉[1] 韦茂志 ZHU Qiong;ZHENG Xiao-hong;LI Guang-hui;WEI Mao-zhi(Liuzhou Vocational&Technical College,Liuzhou 545007,China;Guangxi Zhongyuan Machinery Co.,Ltd.,Liuzhou 545007,China)

机构地区：[1]柳州职业技术学院,广西柳州545007 [2]广西中源机械有限公司,广西柳州545007

出　　处：《液压气动与密封》2024年第4期111-114,共4页Hydraulics Pneumatics & Seals

基　　金：柳州职业技术学院2023年校级科研课题(2023KB21)。

摘　　要：某型号装载机动臂液压缸软管总成外反馈率连续居高不下,软管总成在使用过程中,经常出现软管接头扣压处渗油、爆管、胶管砂眼漏油、外胶龟裂老化等问题。通过对外反馈旧件进行故障分析,查找出造成动臂液压缸软管总成早期失效的根本原因。通过改进设计及措施实施后加以验证,改进后动臂软管外反馈率显著下降。现已推广应用于其他机型中。The external feedback rate of the hose assembly of the cylinder of a certain type of loading motor arm has remained high for three consecutive years.During the use of the hose assembly,oil seepage,pipe explosion,rubber hose sand hole oil leakage,and outer rubber cracking and aging often occur.The root cause of the early failure of the boom cylinder hose assembly was found through the fault analysis of the three old parts of the external feedback.By improving the design and tracking and verifying the implementation of the measures,the external feedback rate of the improved boom hose has been significantly reduced,and has been fully applied in various models.

关 键 词：装载机 动臂液压缸 软管总成 失效模式 

分 类 号：TH137[机械工程—机械制造及自动化]