非圆齿轮传动弯曲强度计算方法研究  

Study on the Calculation Method of Bending Strength for Non-circular Gear

作　　者：李纪强[1] 刘忠明[1] 

机构地区：[1]郑州机械研究所,河南郑州450052

出　　处：《机械传动》2011年第11期1-4,共4页Journal of Mechanical Transmission

基　　金：郑州市科技创新团队研发项目

摘　　要：根据非圆齿轮加工原理,建立了非圆齿轮的齿廓数学模型,并与当量圆柱齿轮的齿廓进行了对比分析。在此基础上,研究了采用当量圆柱齿轮弯曲应力计算方法对非圆齿轮弯曲应力进行计算的可行性,并对非圆齿轮副压力角、重合度等几何和啮合特性参数对强度计算的影响进行了研究,提出了一种合理的非圆齿轮弯曲应力计算方法,并用有限元计算结果验证了该方法的正确性。According to the machining principle,the tooth profile mathematical model of non-circular gear is established,and differences of the tooth profile are compared between the non-circular gear and its equivalent cylindrical gear.On this basis,the feasibility is studied for using the method of cylindrical gear bending stress to calculate the non-circular gear bending stress.The effect of pressure angle,contact ratio and other geometry and meshing characteristics are analyzed.Last,a reasonable calculation method of non-circular gear bending stress is proposed,and its correctness is proved with the finite element method.

关 键 词：非圆齿轮 刀具模型 齿廓方程 弯曲强度 

分 类 号：TH132.41[机械工程—机械制造及自动化]