摘要
针对高减比准双曲面(HRH)齿轮拓扑曲面复杂的问题,利用对偶等切共轭的方法,构建了HRH齿轮齿面模型与ease-off曲面,解析得到齿面接触点曲率参数、卷吸速度、滑滚比等运动学参数。利用接触线微分单元法建立轮齿刚度、载荷与变形协调方程,进行承载接触分析(LTCA)计算,获得了齿面载荷与接触应力分布规律;结合弹流润滑(EHL)摩擦因数经验公式,解决了瞬时接触区畸变、EHL参数计算问题。分析了齿面上油膜厚度、摩擦因数、摩擦功耗的分布规律。通过传动效率试验验证了所给出的LTCA、摩擦功耗分析与啮合效率计算模型。
Aiming at the problems of complex topological surfaces of high reduction hypoid(HRH)gears,the HRH gear tooth surface model and ease-off surface were constructed by dual equitangent conjugate method,and the curvature parameters of tooth contact points,enrolling speed and kinematics parameters of roll ratio were obtained analytically.Using the contact line differential element method,coordination equations of tooth stiffness,load and deformation were established,and LTCA was carried out to obtain the distribution law of tooth surface loads and contact stresses.Combined with EHL friction factor empirical formula,the problems of instantaneous contact area distortion and the parameters calculation of EHL were solved.The distribution rules of oil film thickness,friction coefficient and friction power consumption on tooth surfaces were analyzed.The LTCA,friction power loss analysis and meshing efficiency calculation models were verified by transmission efficiency tests.
作者
魏冰阳
古德万
王永强
杨建军
WEI Bingyang;GU Dewan;WANG Yongqiang;YANG Jianjun(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang,Henan,471000;Center of Machinery Equipment Advanced Manufacturing of Henan Province,Luoyang,Henan,471000)
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2023年第13期1525-1532,共8页
China Mechanical Engineering
基金
国家自然科学基金(51875174)
河南省研究生教育改革与质量提升工程项目(YJS2022JD12)。
关键词
差曲面
微分单元
承载接触分析
弹流润滑
啮合效率
ease-off surface
differential element
loaded tooth contact analysis(LTCA)
elastohydrodynamic lubrication(EHL)
meshing efficiency
作者简介
魏冰阳,男,1966年生,教授、博士研究生导师。研究方向为齿轮啮合理论与锥齿轮设计制造技术。E-mail:bywei29@163.com;通信作者:古德万,男,1996年生,硕士研究生。研究方向为准双曲面齿轮传动与精密减速器设计。E-mail:747943271@qq.com。
