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论述了面齿轮传动的研究现状及需要进一步研究的问题。作者对面齿轮传动中受到刀具数量多和齿宽窄的限制提出了新认识，认为机械产品的型号是有限的，相应所用齿轮参数也是有限的；同时通过使用现代设计方法可以充分地利用有效齿宽，需要采用现代分析技术对面齿轮的强度作进一步的深入研究。由于接触斑点的位置不仅与几何尺寸有关，还与变形及各种误差有关，这些误差又都是随机的。因此，作者在文中提出了概率弹性啮合分析的新概念。
The research status of face gear transmission and the problems that need further research are discussed. The author has come to a new understanding of the limitation of the number of tools and the width of the tooth in the opposite gear drive. The model of mechanical products is limited and the corresponding gear parameters are limited. At the same time, the effective tooth width can be fully utilized through the use of modern design methods, Need to use the modern analysis of the intensity of gear on the side for further in-depth study. Since the location of contact spots is not only related to the geometry, but also to the deformation and various errors, these errors are random. Therefore, the author proposed a new concept of probabilistic elastic meshing analysis.