主颚板机械强度理论计算与有限元分析研究  

Theoretical calculation of mechanical strength and finite element analysis about the primary jaw plate

作　　者：成浩[1] 周井玲[1] 程志明[1] 陆鹏鹏 何云华 

机构地区：[1]南通大学机械工程学院,南通226019 [2]江苏如东通用石油机械股份有限公司,南通226499

出　　处：《现代制造工程》2015年第3期67-70,共4页Modern Manufacturing Engineering

基　　金：江苏省"六大人才高峰"项目(2011-ZBZZ009)

摘　　要：为了确保液压动力钳的上扣质量,针对液压动力钳主颚板的结构特点以及受力情况,利用确定结构危险截面的方法,推导出了主颚板机械强度的理论计算公式,并通过实例应用,分别采用理论计算公式与有限元分析方法进行计算,二者误差仅为3.1%,验证了理论计算公式的正确性。同时针对主颚板存在的应力集中现象,利用有限元法对不同大小的过渡圆角半径进行分析比较,发现最佳过渡圆角半径为R3mm,此时主鄂板的最大应力降低了10%,应力集中现象得以改善。In order to ensure the quality of make-up by hydraulic power tongs ,calculating formulation of mechanical strength of primary jaw plate has been derived ,according to the structure character and stress situation about primary jaw plate .Through an practical example was presented ,used the methods of the theoretical calculation and finite element analysis .Found the error of the result was just 3.4 percent.Meanwhile to against the stress concentration in primary jaw plate ,compared the result of transition fillet radius by finite element analysis .Found the best radius was 3 mm,the stress concentration was improved 10%.

关 键 词：液压动力钳 主颚板 强度校核 节点应力 路径映射 

分 类 号：TH123.3[机械工程—机械设计及理论]