| 摘要 |
The reduction gear box comprises a housing, an input shaft having its longitudinal axis horizontal and coupled to a drive shaft, an output shaft having its longitudinal axis horizontal and coupled to a utilizer shaft, and several drive reduction stages within the housing between the input shaft and the output shaft. One stage after the first stage includes a gear pair constituted by a hypoid bevel pinion and a bevel crown gear with mutually perpendicular axes, the axis of the pinion being offset from the axis of the crown gear by an offset distance equal to the algebraic sum of the offset of interaxial spacing between the other gear stages measured in the direction of the offset distance of the gear pair such that the axes of the input shaft and of the output shaft intersect at right angles and lie in the same horizontal plane.
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