拖拉机齿轮泵轮齿接触的有限元分析  

Finite Element Analysis of Gear Contact Stress of Gear Pump on Tractor

作　　者：张青元[1] 吕新民[1,2] 

机构地区：[1]西北农林科技大学机械与电子工程学院 [2]陕西省农业装备工程技术研究中心,陕西杨凌712100

出　　处：《农机化研究》2012年第5期34-37,共4页Journal of Agricultural Mechanization Research

基　　金：陕西省科技攻关项目(2003K03-G9-01)

摘　　要：齿轮泵作为拖拉机上液压系统的加压元件,其工作状态直接影响着拖拉机的工作性能。为此,通过Pro/E参数化建模的方法,构建了齿轮泵轮齿的三维精确模型;利用Pro/E和ANSYS之间的无缝连接接口导入到AN-SYS中,采用solid95单元建立其质量较高的有限元模型,并对其复杂的边界条件进行简化处理,然后对其进行接触非线性有限元分析,得到了齿轮接触应力、应变的分布云图以及最大接触应力,为拖拉机齿轮泵的改进及优化提供依据。Gear pump is a pressurized components of tractor hydraulic system,its working status directly affects the performance of the tractor.Pair of meshing gears is presented by the method for precise modeling of gear in software Pro/E;then by the excellent data exchange interface between ANSYS and Pro/E,the model can be transferred into ANSYS.Establish its finite element model of high quality by solid45 element,simplify the complicated boundary condition,and contact stress can be calculated with finite element analysis,and provide the basis for the improving,optimization of gear pump on tractor.

关 键 词：拖拉机 齿轮泵 有限元分析 接触应力 

分 类 号：S219.032.1[农业科学—农业机械化工程]