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一前言在工业上,伞齿轮用于相交轴的动力传动是很多的,而且这类相交轴大概都是以90°轴交角为多;非90角者亦有,但是比较起来,数量上是极少数。伞齿轮的应用范围,除一般工业上机械动力传动外,应用最多的有汽车后轴传动及飞机推进器的减速装置等。在一般的正齿轮中,有直齿轮(Spur gear)及螺旋齿轮(Helical gear)之分。伞齿轮同正齿轮的分类一样,有直伞齿轮(Straight bevel gear)及螺旋伞齿轮(Spiral bevel gear)之分。其他尚有变曲面伞齿轮(Hypoid gear)等,但不在本文讨论范围之内。螺旋伞齿轮之所以被大量采用,尤其是在高速
I. INTRODUCTION In industry, the bevel gears are used for the power transmission of intersecting shafts, and such intersecting shafts are mostly at an angle of more than 90 °. The non-90-angle ones also have, but in comparison, they are extremely polar few. Bevel gear applications, in addition to the general industrial mechanical power transmission, the most used car rear axle drive and aircraft propeller deceleration devices. In a general spur gear, there is a spur gear and a helical gear. Bevel gear with the same classification as spur gear, straight bevel gear (Straight bevel gear) and the spiral bevel gear (Spiral bevel gear) points. Others still have curved gears (Hypoid gear), but not in the scope of this article. The reason why spiral bevel gear is used in large quantities, especially at high speed