非对称塑料齿轮弯曲应力的解析法计算  

An Analytic Calculation Method for the Tooth Root Bending Stress of Asymmetric Plastic Gear

作　　者：郝瑞贤[1] 李威[2] 李元宗[1] 

机构地区：[1]太原理工大学机械工程学院,太原030024 [2]北京科技大学机械工程学院,北京100083

出　　处：《机械设计与研究》2009年第1期61-64,共4页Machine Design And Research

摘　　要：介绍了非对称渐开线塑料齿轮弯曲应力解析法的计算公式,根据尼曼实验曲线得出了重合度系数的解析表达式,并推导了齿顶到各特性啮合点的距离公式。通过实例计算了各特性啮合点的齿根弯曲应力,说明了非对称渐开线塑料齿轮比对称塑料齿轮具有更高的承载能力。The tooth root bending stress of asymmetric involute plastic gear was calculated by analytic method.The analytical expression of contact ratio coefficient was deduced according to Nicmann experimental curve,and the formulas of distance from gear tip to each characteristic meshing points were proposed.Tooth root bending stress of these points were calculated by an example to verify that the loading capacity of asymmetric plastic gear is higher than the symmetric one.

关 键 词：非对称齿廓 渐开线 塑料齿轮:齿根弯曲应力 解析法 

分 类 号：TH132.413[机械工程—机械制造及自动化]