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文章编号： 1672-6987（2022）02-0095-09； DOI： 10.16351/j.1672-6987.2022.02.015
胡德兴， 杨福芹*， 耿春晖(青岛科技大学 机电工程学院，山东 青岛 266061)
摘要： 建立新型滚珠式三叉杆万向联轴器滚珠与滑块槽点接触等效润滑模型，结合汽车在实际运行中的档位参数对联轴器进行了热弹流润滑分析，并考察了槽壳半径r、滚珠半径R、轴交角δ对联轴器热弹流润滑特性的影响。结果表明：在档位固定情况下，增大槽壳半径r、滚珠半径R会使膜厚增大，同时降低油膜压力及温升，这对改善联轴器润滑状况均是有利的。此外，虽然增大轴交角δ会使油膜压力及温升增大，但油膜厚度的增幅更加明显，这同样有利于联轴器润滑状况的改善。
关键词： 滚珠式三叉杆万向联轴器； 热弹流润滑； 油膜厚度； 油膜压力； 温升
中图分类号： TH 117.2文献标志码： A
引用格式： 胡德兴， 杨福芹， 耿春晖. 车用滚珠式三叉杆万向联轴器热弹流润滑特性［J］. 青岛科技大学学报(自然科学版), 2022, 43(2): 95-103.
HU Dexing, YANG Fuqin, GENG Chunhui. Thermal elastohydrodynamic lubrication characteristics of the ball-type tripod universal joint for vehicles［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2022， 43（2）： 95-103.
Thermal Elastohydrodynamic Lubrication Characteristics of the
Ball-Type Tripod Universal Joint for VehiclesHU Dexing, YANG Fuqin, GENG Chunhui
(College of Electromechanical Engineering, Qingdao University of Science and Technology， Qingdao 266061，China)
Abstract: Equivalent lubrication model of ball-to-slider groove point contact of new ball-type tripod universal joints was established. Thermal elastohydrodynamic lubrication (TEHL) analysis was carried out on the joints in combination with gear parameters in actual operation of the vehicle, and the effects of groove shell radius r, ball radius R and shaft intersection angle δ on the TEHL characteristics of the coupling were investigated. The results show that under the condition of fixed gear, increasing the radius of groove shell radius r, ball radius R is advantageous to improve the lubrication condition of the joints. In addition, although increasing the shaft angle δ will increase the oil film pressure and temperature rise, the increase of oil film thickness is more obvious, which is also conducive to the improvement of the lubrication condition of the joints.
Key words: the ball-type tripod universal joint; thermal elastohydrodynamic lubrication; oil film thickness; oil film pressure; temperature rise
收稿日期： 2021-03-08
基金项目： 山东省重点研发计划项目(2018GGX103015).
作者简介： 胡德兴（1996—），男，硕士研究生.*通信联系人.
