少齿数非对称齿轮参数对温度场影响分析

发布时间：2018-02-20 21:18

本文关键词： 少齿数非对称齿轮温度场参数齿轮副传热模型　出处：《机械传动》2017年03期 　论文类型：期刊论文

【摘要】：温度场分布对齿轮齿面胶合失效具有重要影响,进而对齿轮传动的可靠性及寿命具有重要影响。基于少齿数非对称齿轮副啮合齿面间产生的摩擦热,运用齿轮空间啮合理论、传热学和有限元方法,分析摩擦热流量及其影响参数沿啮合线的分布情况,建立齿数非对称齿轮的温度场热平衡温度方程,创建齿轮副的有限元模型。通过运用ANSYS参数化设计语言APDL依次对单元节点的摩擦热流量进行加载,得到精确的少齿数非对称齿轮温度场的分析结果。可知:齿顶附近和齿根附近时齿轮温度分布的两个峰值位置;分析齿轮几何参数和工况参数变化对温度场的影响,增加变位系数,齿顶滑动速度增加,导致齿轮的温度上升;为齿轮的优化设计和润滑改进提供可靠依据。
[Abstract]:The distribution of temperature field has an important influence on the failure of gear tooth surface bonding, and then on the reliability and life of gear transmission. Based on the friction heat between the tooth surfaces of asymmetric gear pair with less tooth number, the theory of gear space meshing is applied. The heat transfer theory and finite element method are used to analyze the distribution of friction heat flux and its influence parameters along the meshing line, and the temperature equilibrium temperature equation of the tooth number asymmetric gear is established. The finite element model of gear pair is established. The friction heat flux of element node is loaded by using ANSYS parametric design language APDL. The results of accurate analysis of temperature field of asymmetric gear with less tooth number are obtained. It is known that the two peak positions of gear temperature distribution near the tooth top and the tooth root, the influence of gear geometric parameters and operating parameters on the temperature field is analyzed. With the increase of the displacement coefficient, the sliding speed of the top of the tooth increases, which leads to the rise of the temperature of the gear, which provides a reliable basis for the optimization of the gear design and the improvement of lubrication.
【作者单位】：湖北交通职业技术学院汽车与航空学院;
【基金】：湖北省自然科学基金(2013CDB05126)
【分类号】：TH132.41

【相似文献】