仮想転位歯車理論に基づく実用フェースギヤの創成歯切り

概要

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Face gears are made by a continuous generating-shaping process on a Fellows Gear Shaper or similar type machine using a special fixture. Their gears, which have some advantages of easy setting, smooth mating for the mating pinion of spur or helical, low cost, and other things, are often substituted for bevel gears. In order to hob by use of a conventional hob machine and commercial hob, a theory of virtual shifted gear for determining the maximum practical outside diameter, the minimum practical inside diameter, and the face width of face gears, is proposed in face gear design. As a result, hobbed face gear could be obtained to become the point which the teeth become pointed at the outside and the point where tooth trimming occurs at the inside. In addition, contact test will be permitted to touch smoothly if being burnished enough.
1995-04-05