| 摘要 |
The speed reducer comprises a first shaft which is supported so as to be able to slide axially, is suitable for being rotatingly actuated and a pinion whose set of teeth are slightly beveled is located thereon. A second shaft is supported so as to be able to slide axially with an axis parallel to the first shaft and a gear and a further pinion, are located thereon both having sets of teeth slightly beveled in opposite directions and suitable for meshing respectively with the pinion of the first shaft and with a further gear which is fixedly located on an output shaft, coaxial to the first shaft. A device is provided for adjusting the axial position of the first shaft, so as to move the sides of the conical sets of teeth of the gears closer in order to eliminate the related clearances.
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