As a new type of gear transmission developed in recent years, curve-face gear transmission has not appeared before. In order to solve the problem of root bending strength of the eccentric straight and helical curve face gear, a calculating method of the tooth root bending strength was proposed. According to the principle of space meshing, differential geometry and design of machinery, the parametric equations of pitch curve was obtained, the pressure angle and the contact ratio in the meshing process were derived. The plane equivalent pitch curve was obtained, and the formula for calculating the equivalent tooth form factor and the equivalent stress correction factor was acquired. The calculation method of the bending strength of the gear pair was established, and the influence of the basic structural parameters on the bending stress was also analyzed in detail. The position of the stress hazard of the eccentric curve-face gear was determined. Through the finite element analysis and transmission experiment, the accuracy of the calculation method of strength of the gear pair was verified.

作为近年来发展起来的新型齿轮传动装置，曲面齿轮传动装置从未出现过。为了解决偏心直斜螺旋曲面齿轮的齿根弯曲强度问题，提出了齿根弯曲强度的计算方法。根据空间啮合原理，微分几何和机械设计原理，得到了节距曲线的参数方程，推导了啮合过程中的压力角和接触比。获得了平面等效螺距曲线，并获得了计算等效齿形因子和等效应力校正因子的公式。建立了齿轮副抗弯强度的计算方法，并详细分析了基本结构参数对弯曲应力的影响。确定了偏心曲线齿轮的应力危险位置。通过有限元分析和传动实验，验证了齿轮副强度计算方法的准确性。