On the basis of relationship between meshing rigidity and noise and taking the modification, vibration deduction and noise dropping as the aims, the tooth profile modification was carried out on spur bevel gar by the use of revolving involute curve.

• 摘要根据啮合刚度和噪声之间的关系，以修形减振降噪为目的，用旋转渐开线曲线对直齿锥齿轮进行齿廓修形。