Planetary gear transmission systems or components – Planetary gearing or element – Floating or flexible coupling or support
Patent
1999-06-11
2000-09-12
Wright, Dirk
Planetary gear transmission systems or components
Planetary gearing or element
Floating or flexible coupling or support
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:
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Avery Bennett W.
Cobb Laurence J.
Wiest Valerie R.
Caterpillar Inc.
Myers Jeffrey L.
Wright Dirk
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