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本文提出用分度圆锥角的综合变位(分锥角不等移距变位为主,齿厚切向变位为辅)原理来设计和加工螺旋锥齿轮。这种新齿形,实践证明,比传统齿形(目前国内外普遍采用的分锥角不变位齿形,包括径向不变位,高度变位和高度与齿厚切向综合变位三种齿形),具有更为优良的传动啮合性能,更高的承载能力和更广泛的工作适应性。例如:可以获得比传统齿形高得多的综合强度(即同时加强接触强度、弯曲强度、抗胶合能力和抗磨损能力,并实现两轮齿的等寿命等弯强),可以实现齿数和小于20的少齿数传动,这都是传统齿形不可能做到的。这种新齿形的螺旋齿轮完全可以用传统齿形的加工机床和刀具加工出来。因此,这种新型的螺旋锥齿轮,具有很广阔的发展前途。
In this paper, we design and process the spiral bevel gear by the principle of the comprehensive displacement of the indexing cone angle (the variation of the taper angle is mainly based on the displacement of the taper angle and the tangential displacement of the tooth thickness is supplemented). This new toothed shape has been proved to be more effective than the traditional toothed form (at present, the taper angle invariant toothed shape commonly used at home and abroad includes the radial invariant position, the height displacement, and the height and thickness tangential composite displacement three Kind of tooth), with more excellent transmission meshing performance, higher carrying capacity and wider work adaptability. For example, it is possible to achieve a composite strength much higher than that of a conventional toothed shape (that is, to simultaneously increase the contact strength, the bending strength, the anti-gluing ability and the abrasion resistance and to achieve the bending strength such as the life of two teeth) 20 teeth less transmission, which are impossible to do with the traditional tooth shape. This new toothed helical gear can be machined with conventional toothed machining tools and tools. Therefore, this new spiral bevel gear, has a very broad development prospects.