滚柱包络端面啮合蜗杆传动弹流润滑分析  

Analysis of Elastohydronamic Lubrication of the Roller Enveloping End Face Engagement Worm Drive

作　　者：王小龙 Wang Xiaolong(School of Mechanical Engineering,Chengdu University,Chengdu 610106,China)

机构地区：[1]成都大学机械工程学院,四川成都610106

出　　处：《机械传动》2020年第9期128-132,共5页Journal of Mechanical Transmission

摘　　要：为了研究滚柱包络端面啮合蜗杆传动的润滑性能,在滚柱包络端面啮合蜗杆传动啮合理论和弹性流体动力润滑理论的基础上,建立了滚柱包络端面啮合蜗杆传动的简化弹性流体动力润滑模型;基于各润滑状态区内近似膜厚和膜厚比计算公式,运用Matlab软件进行了数值仿真,得出了该传动副在整个传动过程中的润滑状态、最小油膜厚度时域分布规律,结果表明,该传动副具有较好的润滑性能;最后,分析了滚柱半径R和喉径系数k对该传动副润滑性能的影响,结果表明,要使该传动副保持良好的润滑性能,滚柱半径R不宜过大,喉径系数k不宜过小。To study the lubrication performance of roller enveloping end face engagement worm drive,the elastohydrodynamic lubrication(EHL)model is established based on meshing theory of roller enveloping end face engagement worm drive and the theory of EHL.Based on calculation formula of approximate film thickness and film thickness ratio in every lubrication condition area,the simulation is conducted using Matlab software,and the time-domain distribution of lubrication condition,minimum film thickness and film thickness ratio are analyzed,it can be concluded as that this transmission pair has better lubrication performance.Finally,the influences of roller radius R and orifice coefficient k on lubrication performance of the transmission pair are analyzed.The results show that the roller radius R should not too bigger,orifice coefficient k should not too smaller,for effectively improving the lubrication performance of the roller enveloping end face engagement worm drive.

关 键 词：滚柱包络 端面啮合蜗杆 弹性流体动力润滑 润滑性能 最小油膜厚度 

分 类 号：TH132.44[机械工程—机械制造及自动化]