Self-aligning cantilever carrier

Planetary gear transmission systems or components – Planetary gearing or element – Floating or flexible coupling or support

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F16H 344

Patent

active

061170410

ABSTRACT:
A planetary gear set is disclosed that includes self-aligning carrier shafts for the planetary gears that greatly reduces the wear to the carrier shaft caused by torque-induced loads on the planetary gear set. The carrier shaft includes a first cantilevered member extending from a carrier deck, which is connected, to a second cantilevered member that extends toward the carrier deck. A bearing member of the planetary gear is mounted to the second cantilevered member and the planetary gear is mounted to the bearing member. Under a torque-induced load on the planetary gear, the first cantilevered member is deflected in a first direction and the second cantilevered member is deflected in a second direction opposite the first direction, thus a carrier shaft designed in accordance with the present invention enables offsetting deflections under torque-induced loads leading to a reduction in the wear of the bearing member and the carrier shaft. The disclosed carrier shaft further permits a planetary gear system that utilizes a single carrier deck rather than dual carrier decks.

REFERENCES:
patent: 3303713 (1967-02-01), Hicks
patent: 3943787 (1976-03-01), Hicks
patent: 4104932 (1978-08-01), Hansson
patent: 4719818 (1988-01-01), McCreary
patent: 4885959 (1989-12-01), Shinjo et al.
patent: 4955852 (1990-09-01), Morisawa
patent: 5368528 (1994-11-01), Farrell
patent: 5567056 (1996-10-01), Blase et al.

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