圆弧齿线圆柱齿轮弯曲强度研究

Study on the Bending Strength of the Circular-Arc-Tooth-Trace Cylindrical Gear

本文根据圆弧齿线圆柱齿轮轮齿的独特结构,建立了该齿轮的弯曲强度分析模型;通过大量计算获得了其弯曲强度特征系数——弯曲弧齿系数Ya。然后在此基础上提出了一种新的齿轮强度分析方法——悬臂柱壳分析法,并运用此法分析推导了圆弧齿线圆柱齿轮的齿根弯曲应力计算公式,此式可作为该齿轮的弯曲强度计算准则。

According to the special tooth structure of the Circular-Arc-Tooth-Trace cylindrical gear (CATT gear), an analysing model of its bending strength is established. The characteristic factor of the CATT gear—the bending arctooth factor Y_a is obtained by author. Based on these, this paper proposes a new method in strength analysing of gear—the cantilever cylindrical shell method and derives a calculating formula of bending stress of tooth of the CATT gear. The formula can be used in engineering.