Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1985-10-03
1987-05-05
Dorner, Kenneth J.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74797, 74730, F16H 344, F16H 5710
Patent
active
046622462
ABSTRACT:
A compact multistage planetary final drive mechanism includes a housing structure and associated wheel rotatably mounted on a hollow spindle, and a planetary gear apparatus for driving the housing structure at a relatively high speed reduction ratio in response to rotation of an input shaft. The planetary gear apparatus includes a first stage cluster gear set operatively connected to a second stage planetary gear set. A plurality of planet gears of the planetary gear set are rotatably mounted on the spindle, a parking brake mechanism is mounted within the spindle, and a first trough is defined annularly about the spindle. A second trough is defined within the housing structure, first and second pairs of wire raceways are seated within the respective troughs, and a plurality of roller bearing elements are cross connected within the wire raceways to transmit thrust and radial loads from the wheel to the spindle. The cluster gear set includes a first ring gear and the planetary gear set includes a first ring gear and the planetary gear set includes a second ring gear, and these ring gears are connected to transmit torque to the case of the housing structure independently of a releasable cover.
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Caterpillar Tractor Co., Model 205, Excavator Parts Book, using Linde Aktiengesellschaft Final Drive-Model GK27, published about Aug. 1984.
"Catalogue GB-D 401 Slewing Rings", INA-Walzlager, Germany, publication date unknown.
Cheek Michael E.
Morris William C.
Caterpillar Inc.
Dorner Kenneth J.
Lanchantin, Jr. Charles E.
Wright Dirk
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