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某柴油机连杆小头结构演变分析
引用本文:陈波,张利敏,王延荣,熊毕伟,刘玉婷,刘强,周海涛,李鹏,苏莉.某柴油机连杆小头结构演变分析[J].车用发动机,2015(3):7-10.
作者姓名:陈波  张利敏  王延荣  熊毕伟  刘玉婷  刘强  周海涛  李鹏  苏莉
作者单位:1. 中北大学,山西太原 030051; 中国北方发动机研究所 天津,天津 300400;2. 中国北方发动机研究所 天津,天津,300400;3. 海军装备研究院,北京,100161;4. 内蒙古第一机械集团有限公司科研所,内蒙古包头,014032
摘    要:针对某柴油机连杆小头衬套松脱问题,提出2种连杆小头结构改进方案,分别从安装状态的衬套背压、工作状态的衬套滑移以及小头内孔变形三方面研究关键参数及敏感区域对结构刚度的影响。结果表明:增加衬套壁厚、增大连杆小头支撑刚度可有效增大衬套背压,减小内孔变形,降低衬套由切向力所导致的滑动风险。

关 键 词:连杆小头  结构设计  背压  滑移

Structure Evolution Analysis of Connecting Rod Small End for Diesel Engine
CHEN Bo,ZHANG Limin,WANG Yanrong,XIONG Biwei,LIU Yuting,LIU Qiang,ZHOU Haitao,LI Peng,SU Li.Structure Evolution Analysis of Connecting Rod Small End for Diesel Engine[J].Vehicle Engine,2015(3):7-10.
Authors:CHEN Bo  ZHANG Limin  WANG Yanrong  XIONG Biwei  LIU Yuting  LIU Qiang  ZHOU Haitao  LI Peng  SU Li
Abstract:For the loose problems of the connecting rod small end bushing ,two modified structures were proposed .The influ‐ences of critical parameters and sensitive areas on structural stiffness were evaluated in terms of bushing back pressure under assembling state and sliding and bore deformation in operational condition .The results showed that the increase of bushing thickness and small end supporting stiffness can increase bushing back pressure and decrease the bore deformation and reduce the risk of tangential sliding .
Keywords:connecting rod small end  structure design  back pressure  sliding
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