| 摘要 |
PURPOSE:To enhance the uniform distribution property in the epicyclic gear unit in the caption by providing a clearance which permits epicyclic gears to move in radial direction along the whole circumference on the fitting portion between a shaft and epicyclic gears or the shaft and a carrier. CONSTITUTION:The both ends of a shaft 31 serving as a rotational center of each epicyclic gear 3 is supported by means of circular holes 41 provided in carriers 4, and annular spring plates 5 made of spring steel are pressedly inserted between the shaft 31 and the inner circumferences of circular holes 41. Each of the spring plate 5 is a circular arc in its cross section and a plurality of plate springs 5, having different diameters are interposed between the shaft 31 and the carriers 4. Accordingly, the elastic force in response to the elastic deformation capacity of the cross-sectional area in a circular arc form acts always between the shaft 31 and the carriers 4 and when the torque is transmitted, each of the epicyclic gear 3 and the shaft 31 are sure to bear the transmitting force, so that the uniform distribution property is secured and the damage and the noise of gears can be prevented.
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