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文章编号： 1672-6987（2022）01-0092-08； DOI： 10.16351/j.1672-6987.2022.01.013
魏建宝， 李松梅*(青岛科技大学 机电工程学院，山东 青岛 266061)
摘要： 为了研究受粗糙度影响下的三叉杆滑块式万向联轴器的润滑性能，进一步提高其在汽车等传动轴系统的工作效率，以弹流润滑点接触理论为基础，以正弦粗糙度作为分析条件，首先对点接触润滑Reynolds方程进行量纲一化处理，然后对处理后的方程进行差分处理，利用多重网格法进行了求解，借助MATLAB软件进行了绘图，并对速度、滚滑比因素进行了研究分析。结果表明：在考虑粗糙度的热效应分析下，油膜膜厚、压力及温度都受到粗糙度的影响，且随着粗糙度值的增大，接触区的压力和温度也随之增大，在接触区域的中间及出口区位置，膜厚的变化量最大，压力与温度出现峰值,随着速度的增加，膜厚、温度随之增加，滚滑比越大，油膜温度越高。
关键词： 三叉杆万向联轴器； 点接触； 粗糙度； 热弹流润滑
中图分类号： TH 132文献标志码： A
引用格式： 魏建宝，李松梅. 考虑粗糙度下的三叉杆万向联轴器的热弹流润滑特性分析［J］. 青岛科技大学学报(自然科学版), 2022, 43(1): 92-99.
WEI Jianbao, LI Songmei. Analysis of thermal elastohydrodynamic lubrication characteristics of tripod universal joint considering roughness［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2022, 43(1): 92-99.
Analysis of Thermal Elastohydrodynamic Lubrication Characteristics of
Tripod Universal Joint Considering RoughnessWEI Jianbao, LI Songmei
(College of Electromechanical Engineering, Qingdao University of Science and Technology， Qingdao 266061， China)
Abstract: In order to study the lubrication performance of the three-fork slider-type universal coupling under roughness, and further improve its working efficiency in the transmission shaft system of automobiles, ect, this study is based on the theory of elastohydrodynamic lubrication point contact and the sinusoidal roughness. As the analysis conditions, firstly, the dimensional normalization process of the point contact lubrication Reynolds equation is carried out, and then the processed equations are processed differentially, solved by the multi-grid method, and plotted with the help of MATLAB software, and the speed, the rolling ratio factors were studied and analyzed. The results show that: under the thermal effect analysis considering the roughness, the oil film thickness, pressure and temperature are all affected by the roughness, and as the roughness increases, the pressure and temperature also increase. In the middle of the contact area and the position of the exit area, the film thickness changes the most, and the pressure and temperature peak. With the increase of speed, the film thickness and temperature increase. The greater the slip ratio, the higher the oil film temperature.
Key words: the tripod sliding universal joint; lubrication characteristics; Reynolds equation; coefficient of viscosity
收稿日期： 2021-02-10
基金项目： 山东省科技发展计划项目(2018JMRH0508)；山东省自然科学基金项目(ZR2020ME114).
作者简介： 魏建宝（1992—），男，硕士研究生.*通信联系人.
