考虑热弹耦合的斜齿轮接触特性及修形研究  

Tooth Contact Analysis and Modification Research of Helical Gear System Considering Thermo-Elastic Coupling

作　　者：汝学斌[1] 王刚强[2] 

机构地区：[1]太原重工股份有限公司齿轮传动分公司,山西太原030024 [2]重庆大学机械传动国家重点实验室,重庆400044

出　　处：《机械设计与制造》2016年第11期101-104,共4页Machinery Design & Manufacture

基　　金：2013年国家国际科技合作项目(2013DFA71330)

摘　　要：利用ANSYS-APDL参数化建模,建立可以考虑不同齿顶修缘量的斜齿轮啮合模型。通过赫兹接触理论和摩擦学原理,计算有限元模型的边界条件和载荷,得到齿轮副本体温度场的分布。将齿轮本体温度场作为体载荷施加在啮合齿轮副上,分别对齿轮系统进行结构分析、热变形分析以及热弹耦合分析。通过对比结构分析和热弹耦合分析结果中齿轮变形和应力分布以及传动误差的分布,研究齿轮系统温度场对齿轮接触特性的影响,确定考虑齿轮系统热变形的齿廓修形参数。将修形前后齿面温度场的分布结果以及热弹耦合分析结果进行对比。结果表明轮齿热变形对啮合性能影响显著,因此修行时应考虑齿轮热变形影响。Based on ANSYS-APDL parcunetric modeling method, the meshing model of helical gears with different amounts of tip relief is established. The boundary conditions and loads of the finite element model are calculated according to the Hertz contact theory and principle of tribology, and the distribution law of the temperature field of the gear pair is obtained. Gear bulk temperature field as body loads is added to the gear meshing pair, the structure analysis, thermal deformation analysis and thermo elastic coupling analysis of gear system are researched. The influence of gear system temperature field on gear contact characteristics are studied according to the gear deformation and stress distribution and transmission error distribution comparing the results of structure analysis with the results of thermal elastic coupling analysis, and gear system tooth profile modification parameters considering the thermal deformation is determined. The distribution results of the temperature of tooth surface and the thermal elastic coupling analysis results before and after modification are compared The results represents that the thermal deformation have a great influence on gear meshing pe^ormance and modification considering the thermal deformation is necessary.

关 键 词：斜齿轮 齿廓修形 热变形 热弹耦合 

分 类 号：TH16[机械工程—机械制造及自动化]