齿轮初期啮合瞬态热胶合研究  

A Study on Gear Transient Scuffing Considering Initial Meshing

作　　者：王宇宁[1] 孙志礼[1] 杜永英[1] 杨丽[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110819

出　　处：《机械设计与制造》2014年第2期40-42,45,共4页Machinery Design & Manufacture

基　　金：航空科学基金(20110450002)

摘　　要：针对传统热胶合计算闪温法和积分温度法的不足,在考虑齿轮初期啮合和实际工况的条件下,运用有限元方法和传热学理论建立直齿圆柱齿轮模型、加载边界条件并对其瞬态温度场进行仿真,得到了轮齿瞬态温度场的分布云图,研究了温度场的分布规律,得到了轮齿瞬态温度,最后对比了轮齿瞬态温度与闪温理论值。结果表明:闪温法偏于保守,考虑初期啮合的瞬态热胶合分析结果更符合实际工况,为指导齿轮靠性设计热胶合、热应力、热变形等提供了重要依据。A iming at the shortage of flash temperature method and integral temperature method for traditional thermal scuffing calculation, considering the gear initial meshing and actual working conditions, the finite element analysis model of tooth is established through the finite element method and theory of heat transfer, loading the boundary conditions and solving the tooth transient temperature field, and then the tooth transient temperature distribution is obtained and the distribution regularity of temperature field is studied. Finally, it compared transient temperature and the theoretical value of tooth. The results show that：flashing temperature method is conservative, transient thermal scuffing analysis results of considering initial meshing conform to actual conditions, and it provides an important basis for guiding gear reliability design, thermal scuffing, thermal stress, thermal deformation and so on.

关 键 词：胶合 瞬态 边界条件 温度场 

分 类 号：TH16[机械工程—机械制造及自动化]