Epicyclic gear train integral sun gear coupling design

Details Epicyclic gear train integral sun gear coupling design Epicyclic gear train integral sun gear coupling design

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 1/48 (2006.01) B23P 15/14 (2006.01) F16H 1/28 (2006.01)

Patent

CA 2580171

A coupling system for connecting a sun gear to a shaft within a planetary gear train, includes a sun gear coupling connecting the sun gear to the shaft. The sun gear coupling has at least one undulant flexible section joined to an inflexible spindle for accommodating misalignment between the sun gear and the shaft. The flexible section comprises a cylindrical ring having a diameter greater than the diameter of the spindle, and joined to the spindle by two longitudinally spaced apart diaphragms. The juncture between the diaphragms, the ring, and the spindle is curved in cross section on an outer side to improve flexibility and minimize stress concentrations, and the inner sides of the diaphragms are straight edges which result in a non-symmetric contour of the diaphragm walls.

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