行星齿轮传动系统动态温度场数值分析与实验研究  

Numerical Analysis and Experimental Study on Dynamic Temperature Field of Planetary Gear Transmission System

作　　者：刘国春 章翔峰[1] 周建星[1] 崔权维[1] 祁乐 魏征 LIU Guochun;ZHANG Xiangfeng;ZHOU Jianxing;CUI Quanwei;QI Le;WEI Zheng(School of Mechanical Engineering,Xinjiang University,Urumqi 830047,China)

机构地区：[1]新疆大学机械工程学院,乌鲁木齐830047

出　　处：《西安交通大学学报》2022年第12期174-183,共10页Journal of Xi'an Jiaotong University

基　　金：新疆维吾尔自治区重点研发计划资助项目(2021B01003-1);新疆维吾尔自治区自然科学基金资助项目(2021D01C050)。

摘　　要：针对行星齿轮系统齿面温度过高导致润滑油失效及传动系统故障的问题,提出了一种齿轮轴承转子系统的动态温度场数值分析与实验研究方法。首先,采用集中参数法建立了平移扭转耦合的多自由度行星齿轮传动系统动力学模型,求解得出了齿轮与轴承动载荷;然后,以系统动载荷为输入条件并结合传热学原理建立了包含轴承齿轮摩擦生热及传动系统散热的动态温度场数值分析模型,计算得出了传动系统动态温度;最后,采用热电偶与热成像相结合的方法,在定点温度测量的基础上得到了传动系统整体温度分布特征。数值分析结果表明:计入轴承摩擦生热时,随着负载持续增大,轴承生热对齿面温度的影响也越大;系统温度随转速变化呈对数关系,随负载变化呈线性关系。实验结果表明,系统整体温度场存在外啮合温度高于内啮合温度的现象,所提方法的理论与实验误差较传统方法减小了1.29%。As excessive tooth surface temperature of planetary gear system may cause lubricating oil failure and transmission system failure,a numerical analysis and experimental study method about dynamic temperature field of gearing-bearing-rotor system is proposed.Firstly,a translation-torsional coupling dynamic model of multi-degree-of-freedom planetary gear transmission system is established by using the centralized parameter method,and the dynamic loads of gear and bearing are obtained.Then,a numerical analysis model of dynamic temperature field including bearing-gear friction heat generation and transmission system heat dissipation is established with the dynamic load of the system as the input condition and combined with the principle of heat transfer.The dynamic temperature of the transmission system is calculated.Finally,the temperature distribution characteristics of the transmission system are obtained based on the fixed point temperature measurement by combining thermocouple and thermal imaging.The numerical analysis results show that when bearing friction heat generation is included,the bearing heat generation has a greater influence on tooth surface temperature as the load continues to increase.The system temperature has a logarithmic relationship with speed change and a linear relationship with load change.Experimental results show that the external meshing temperature is higher than the internal meshing temperature in the overall temperature field of the system.The theoretical and experimental errors of the proposed method are reduced by 1.29%compared with the traditional method.

关 键 词：行星齿轮传动系统 动态温度场 摩擦生热 系统散热 

分 类 号：TH132[机械工程—机械制造及自动化]