准双曲面齿轮齿面接触应力过程计算

Calculation on Tooth Surface Contact Stress Course of Hypoid Gears

针对准双曲面齿轮疲劳破坏中出现几率最高的齿面接触疲劳强度问题 ,在齿面接触分析 ( TCA)和承载接触分析 ( L TCA)的基础上 ,采用弹性力学中 2个空间曲面弹性接触计算方法 ,计算了齿轮副在整个啮合过程中齿面最大接触应力的变化过程 ,指出了最大接触应力所在的齿面位置。这一点与现有的强度计算方法不同 ,为实际工程中准双曲面齿轮的接触强度设计与校核提供了更为精确的方法。

On the basis of Tooth Contact Analysis(TCA) and Load Tooth Contact Analysis(LTCA), an approach for calculating the maximal tooth surface contact stress course in the whole meshing period of hypoid gear drive has been represented by using the theory of elasticity. It is pointed out the point of maximal contact stress on a tooth surface and is not as the same as nowaday method. Taking the tooth surface geometry, the exerted load, the tooth deformation and manufacturing errors into account, this approach provided a valid results of contact stress for optimizing the design of hypoid gears.