相贯线处圆角半径对泵头体自增强性能的影响研究  

Research on effect of fillet radius at interfingering lines on autofrettage performance of the pump head

作　　者：黄天成[1] 周思柱[1] 周后俊 王宏丽[3] 袁新梅[1] 

机构地区：[1]长江大学机械工程学院,荆州434023 [2]渤海钻探公司工程技术研究院,天津719000 [3]荆州四机赛瓦石油钻采设备有限公司,荆州434024

出　　处：《机械设计与制造》2012年第3期224-226,共3页Machinery Design & Manufacture

基　　金：国家重大专项(2011ZX05048);湖北省科技攻关计划项目(2006AA101B29);湖北省高等学校科技创新团队计划项目(T200906)

摘　　要：为了研究压裂柱塞泵泵头体相贯线处圆角半径大小与其自增强性能的关系,以某型号的压裂柱塞泵泵头体为研究对象,利用有限元分析软件,建立了泵头体的参数化有限元模型,针对不同相贯线处圆角半径大小,对其进行了有限元分析。分析结果表明:相贯线处圆角半径为7mm时,泵头体极限载荷较大;相贯线圆角半径为6.35mm时,泵头体残余应力最大;在综合考虑相贯线圆角半径大小对泵头体极限载荷及自增强处理后的残余应力的影响,压裂柱塞泵泵头体相贯线处圆角半径最佳值为6.35mm。To research the relationship between the fillet radius of the interfingering lines for the fracturing plunger pump head and its autofrettage property,a fracturing plunger pump head is selected as a study object,and its parametric finite-element model is established by applying finite element software. Then finite element analysis is carried on when the fillet radius of the interfingering lines are changing, which results show that the limit load of pump head is larger when the fillet radius of the interfingering lines is 7mm,and the residual stress is maximum when the fillet radius of the interfingering lines is 6.35mm.The optimal value of the fillet radius of the interfingering lines is 6.35mm when the pump head limit load and the residual stress are comprehensively considered.

关 键 词：泵头体 自增强 残余应力 有限元 

分 类 号：TH16[机械工程—机械制造及自动化] TH322