In this paper, a method for the dynamic modification of tooth width is used to optimize the problem of uneven loading of helical gears. Considering the meshing error caused by gear manufacturing, installation, time-varying meshing stiffness, clearance, and shaft bending, the distributed meshing transverse-torsion-pendulum nonlinear dynamic model of a helical gear pair is established. A method to modify the tooth width of the helical gear pair is proposed to optimize the uniform load characteristics of the tooth surface. Through the research of dynamic tooth width modification, the optimal modification parameters are obtained so that the dynamic load distribution of the tooth surface is uniform and the load distribution centre is close to the centre of the tooth surface, which reduces the swing phenomenon. During experimental testing, the swing vibration response of the modified gear is reduced by a maximum of 26.15%, the dynamic load coefficient is reduced by a maximum of 20.84%, and the stress distribution on the tooth surface is uniform.

在本文中，一种用于动态修改齿宽的方法被用于优化斜齿轮负载不均匀的问题。考虑到齿轮制造，安装，时变啮合刚度，游隙和轴弯曲引起的啮合误差，建立了斜齿轮副的分布式啮合横向扭转摆非线性动力学模型。提出了一种修改斜齿轮副齿宽的方法，以优化齿面的均匀载荷特性。通过对动态齿宽修改的研究，获得了最优的修改参数，使齿面的动态载荷分布均匀，载荷分布中心靠近齿面中心，减少了摆动现象。在实验测试中，