液压挖掘机斗杆疲劳寿命评估  

Fatigue Life Assessment for Hydraulic Excavator Arm

作　　者：李泽军[1] 曹源文[1] 

机构地区：[1]重庆交通大学机电与汽车工程学院,重庆400074

出　　处：《机械工程师》2013年第5期73-75,共3页Mechanical Engineer

摘　　要：分析了液压挖掘机斗杆的焊接结构,采用英国钢结构疲劳设计与评估标准BS7608对斗杆进行了焊接疲劳寿命评估。评估结果表明,斗杆与动臂铰接的孔系处焊接疲劳寿命最短,与实际情况相符合,其余评估点基本满足设计要求。Welded structure of hydraulic excavator arm is analyzed, assessment arm fatigue life is assessed by using british fatigue design and assessment of steel structures BS7608. The assessment results show that the shortest welding fatigue life at articulated arm and boom, it＇s consistent with the actual situation, the rest of the assessment points arc meet the design requirements.

关 键 词：液压挖掘机 斗杆 疲劳 寿命评估 

分 类 号：U415.5[交通运输工程—道路与铁道工程]