渐开线圆柱齿轮齿廓修形量对轮齿应力的影响

通过对渐开线齿轮修形的分析与研究,采用新的修形方法对渐开线齿轮非工作面进行修形,并建立渐开线齿轮非工作面齿廓方程,根据齿廓方程建立不同修形量的有限元模型,运用Ansys Workbench对单个轮齿进行静力有限元分析,得到齿轮齿根应力云图,通过不同修形量之间的对比,得到修形量与齿根应力变化关系。结果表明,对齿轮进行修形可改善轮齿应力分布,随着修形量的增加,齿根应力呈现减小的趋势。

Influence of Involute Cylindrical Gear Tooth Profile Modification on the Stress of Gear Tooth

Through the analysis and study of involute gear modification,a new method is applied to modify the gear nonworking surface.And the tooth profile equation of the involute gear nonworking surface is built.According to the equation,the finite element analysis model of different modification parameters is established. The static finite element analysis of the gear is carried out by using the software of Ansys Workbench,the stress cloud diagram of gear tooth root is obtained.Through the contrast between the different amounts of modification, the relationship between the modification amount and the root stress is obtained.The results show that the gear tooth stress distribution can be improved by modifying the gear,the stress of the toot of gear is decreased as the increase of repair parameters.