端面谐波齿轮传动啮合性能的分析

端面谐波齿轮传动较径向谐波齿轮传动有不同的特点,它是在轴向变形力的作用下迫使端面齿柔轮变形使其与端面齿刚轮啮合并产生相对运动。对端面谐波齿轮传动来说,啮入深度、齿侧间隙等是分析和评价其啮合性能的质量指标,而齿形角、柔轮的变形规律和变形量的大小,又是影响啮入深度和齿侧间隙的主要因素。为此本文利用已建立的啮合分析计算方法,通过计算机绘出的图形,着重分析齿形角、最大变形量等对啮入深度和齿侧间隙的影响,并从中获得了一些有实用价值的结论,从而为端面谐波齿轮传动选取合理的啮合参数和结构参数提供了依据。

Analysis of the Meshing Performance of the Contrate Harmonic Gear Drive

The contrate harmonic gear drive has different characteristics from the radial harmonic gear drive, such as the axial deformation in contrate harmonic drive produces the contrate flexspline deformation and thus produces the relative movement by meshing with the contrate circular spline. The depth of engaging and the mashing backlash are the quality index for analyzing and evaluating its meshing performance. The nominal pressure angle, deformation regulation and the deformative value of contrate flexspline are the main factors effecting on the depth of engaging and meshing backlash. This paper analyzes the effects of the nominal pressure angle and the maximum deformation upon the depth of eng aging and meshing backlash using an established method of meshing analysis and calculation and drawings made by computer and then obtains some useful conclusions. It provides the basis for choicing the suitable meshing and structural parameters for contrate harmonic gear drive.