计入行星架柔性的行星传动啮合特性分析及修形可靠性研究  

Analysis of the Mesh Characteristic and Study on the Modification Reliability for Planetary Gear Train with Flexible Carrier

作　　者：郭凡[1] 张俊[1] 

机构地区：[1]安徽工业大学机械工程学院,安徽马鞍山243032

出　　处：《机械传动》2014年第9期1-4,共4页Journal of Mechanical Transmission

基　　金：国家自然科学基金(50905122;51375013);安徽省自然科学基金(1208085ME64)

摘　　要：以大功率风电齿轮箱中低速行星级传动为研究对象,通过建立计入行星架结构柔性的多体模型,对行星架进行静态分析求得其位移幅值和应力云图,并据此分析行星架柔性引起的传动件附加位移对行星级内外齿轮副啮合特性的影响。在此基础上,采用正交试验原理开展行星轮系的齿轮修形研究,以减轻因行星架柔性变形引起的啮合错位对齿轮啮合性能的负面效应。最后,针对提出的齿轮微观修形策略,运用可靠性理论研究因误差等随机因素引起的啮合错位量和齿轮微观修形参数的随机不确定性对传递误差波动量造成的影响。可靠性分析结果表明,啮合错位量和修形参数的随机不确定性对传递误差波动量的影响很小,表明所提的修形策略可用于指导行星齿轮的微观齿面修形。Taking the planetary gear low speed stage in an MW wind turbine gearbox as an exam- ple to research the planet carrier displacement amplitude and stress nephogram by static analysis and research the effects of planet carrier flexible on inside and outside mesh gears of planetary gear meshing characteristic based on multibody model with flexible carrier. Based on this, gear modification is pro- posed through orthogonal experiment simulations to alleviate the effect of mesh misalignment caused by planet carrier deformation on gear meshing negative characteristic. Finally, using reliability theory research the effects of random uncertainty of mesh misalignment and micro modification parameters caused by random factors on transmission error fluctuation. Reliability analysis results indicate that the transmission error fluctuation is less sensitive to the random uncertainty of mesh misalignment and modification parameters, the proposed modification strategy can be used to guide the micro modifica- tion of planetary gear.

关 键 词：行星架柔性 啮合特性 齿轮修形 可靠性 

分 类 号：TH132.425[机械工程—机械制造及自动化]