Ease-off修形高减速比准双曲面齿轮接触仿真与动态性能试验  

Contact Simulation and Dynamic Performance Test of Ease-off Modified High Reduction Hypoid Gears

作　　者：古德万 魏冰阳[1] 任明辉 何宏图 Gu Dewan;Wei Bingyang;Ren Minghui;He Hongtu(School of Mechanical&Electronic Engineering,Henan University of Science&Technology,Luoyang 471000,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471000

出　　处：《机械传动》2023年第5期128-133,142,共7页Journal of Mechanical Transmission

基　　金：国家自然科学基金项目(51875174);河南省研究生教育改革与质量提升工程项目(YJS2022JD12)。

摘　　要：针对高减速比准双曲面(High Reduction Hypoid,HRH)齿轮大轮齿廓曲率不足、小轮大螺旋角齿面高度扭转的问题,提出了大轮采用刀具修形以实现齿面点接触的方法,小轮采用一般滚切法,简化机床加工参数;建立了大、小轮的三维模型,Ease-off拓扑曲面;解析了接触路径、差曲率、传动误差等齿面接触性能参数;通过三维运动仿真对比修形前后齿面的接触区,修形后避免了边缘接触,接触区位于齿面中部靠近小端,与齿轮实际接触斑点一致。完成了HRH齿轮减速器动态性能试验,齿轮啮合传动性能优良,啮合质量稳定,验证说明所设计的HRH齿轮修形量控制合理、理论计算与运动仿真正确。Aiming at the problems of insufficient curvature of the tooth profile of the wheel of the high reduction hypoid(HRH)gear,and high twist of the tooth surface of the pinion with a large helix angle,a method of using a tool to modify the wheel to realize the point contact of the tooth surface is proposed;the pinion adopts the general hobbing method,which simplifies the machining parameters of the machine tool.Three-dimensional models of wheels and pinions and Ease-off topological surfaces are established;the contact performance parameters of tooth surfaces,such as the contact path,differential curvatures,transmission error,etc.are analyzed.The contact areas of the tooth surface before and after modification are compared by 3D motion simulation,and the edge contact is avoided after modification,and the contact area is located in the middle of the tooth surface near the small end,which is consistent with the actual contact spot of the gear.The dynamic performance test of HRH gear reducers has been completed,the gear meshing transmission performance is excellent,and the meshing quality is stable,which verifies the reasonable control of the designed HRH gear modification amount,and the correct theoretical calculation and motion simulation.

关 键 词：准双曲面齿轮 刀具修形 差曲面 运动仿真 振动 

分 类 号：TH132.41[机械工程—机械制造及自动化]