Roll and roll-driving assembly

Details Roll and roll-driving assembly Roll and roll-driving assembly

F - Mech Eng,Light,Heat,Weapons

16

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74/203

F16H 1/28 (2006.01) D21G 1/00 (2006.01) F16C 13/00 (2006.01)

Patent

CA 1087877

ABSTRACT OF THE DISCLOSURE: A roll and roll-driving assembly includes an internal stationary shaft and an outer shell surrounding the internal shaft as well as a bearing structure supporting the outer shell for rotation with respect to the internal shaft. A rotary input shaft is coaxial with the stationary shaft to receive a rotary drive from an outside source. A sun gear is fixed coaxially to the rotary input shaft so as to rotate therewith, while a plura- lity of planetary gears which respectively have axes parallel to the axis of the input shaft and which mesh with the sun gear are uniformly distributed about the axis of the input shaft. An internal ring gear surrounds and meshes with the planetary gears while being supported exclusively thereby so that the in- ternal ring gear can automatically center itself with respect to the plurality of planetary gears while a load is uniformly distributed along a plurality of power-transmission paths extend- ing from the sun gear through the plurality of planetary gears to the internal ring gear. A transmission is operatively connected between the internal ring gear and the shell to transmit a drive from the ring gear to the shell and to automatically compensate for inaccuracies and/or deformations.

277783

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