关键词: 齿形, 螺旋锥齿轮, 强度, 噪声

Abstract: 　　A need kind of spiral bevel gear is presented which is based on long tooth height and shoot-shoot addendum modification. By the optimal technique, it is possible to gain the contact ratio more than 2.1～2.7. For spiral angle βm>25°, there are always double pair teeth in mesh on one half of full loading. The theoretical analysis and experiment show clearly that this new kind of spiral bevel gear have a good quality of low sound and high strength. It can be cut by any current tool machine and standard cutters.

Key words: Sound, Spiral bevel gear, Strength, Tooth form