偏曲轴少齿差行星减速器箱体的模态分析  

Mode analysis of eccentric crankshaft less tooth difference planetary gears reducer by finite element method

作　　者：戴红娟[1] 周红良[2] 

机构地区：[1]淮海工学院机械工程学院,连云港222006 [2]连云港正大饲料有限公司,连云港222042

出　　处：《机械设计与制造》2010年第12期28-29,共2页Machinery Design & Manufacture

基　　金：淮海工学院自然科学基金资助项目(Z2006024)

摘　　要：介绍了偏曲轴少齿差行星减速器的结构组成。将箱体模型导入到ANSYS软件中进行了有限元模态分析,得到固有频率及振型。振型分析的结果表明,箱底座的结构设计较合理,在轴承孔处增加的肋板使箱体在轴承座孔的局部区域的振幅减小。箱盖在轴承孔处局部区域振幅较大,结构设计有缺陷。在箱盖每个轴承座上方加上肋板,达到降低三环减速器整机的振动和噪音的目的。该研究对减速器模态分析设计以及为后续振动问题研究提供了理论参考。The structures of the eccentric crankshaft less tooth difference planetary gears reducer are introduced.The reducer model is leaded to finite element software ANSYS and mode analysis is got.The results of mode of vibration show that structure design is reasonable.Ribbed slabs inhanced near bearing hole lower vibration amplitude near bearing support on the reducer.It a flaw of the structure design because the vibration amplitude of reducer cover is rather large.Vibration and noise of three-ring reducer are reduced using ribbed slab inhanced upon bearing supports.It offers a theoretic reference to mode analysis and design and follow-on research of vibration problems for reducers.

关 键 词：偏曲轴 少齿差行星减速器 减速器箱体 有限元模态分析 finite element method difference 结构设计 轴承座孔 轴承孔 三环减速器 ANSYS软件 振型分析 振幅 振动 箱盖 问题研究 区域 模型导入 肋板 局部 

分 类 号：TH122[机械工程—机械设计及理论] TH16