Planetary transmission with hydraulic engagement and disengagement
AssigneeOtis Engineering Corporation
InventorsMarshall D. Heitman, Joe D. Butler
Life of this patent
Estimating the term…
Abstract
A hydraulically operated planetary transmission and motor assembly mounted on the hub of two or more wheels of a four wheeled vehicle for providing wheel driving torque with the transmission set in drive. In an alternate form, the transmission and motor assembly is mounted on the hub of a winch to provide the power drive. The transmission is hydraulically engageable and disengageable and includes a lock whereby the transmission can be locked in either the engaged or disengaged position. The arrangement of components provides easy access for maintenance and for change out of gears to gear sets having different gear ratios all within the same transmission housing.
Claims41
In a planetary transmission shiftable between drive engaged and drive disengaged states:
- power shift means with transmission shift output means;
- a transmission housing rotatably mounted on said power shift means;
- drive power input means adapted for drive power input from a first end of said transmission;
- a removable cover on a second end of said transmission;
- sun gear means drive connected to said drive power input means;
- a planetary carrier;
- planetary gear means rotatably mounted in said planetary carrier, and with said planetary carrier rotatably mounted within said transmission housing;
- first ring gear means non-rotatably mounted on said power shift means;
- second ring gear means rotatably mounted within said transmission housing;
- said planetary gear means driven by said sun gear means and in meshed engagement with both said first and second ring gears;
- ring gear clutch means;
- clutch means non-rotatably mounted by said transmission housing shiftable into and out of clutched engagement with said ring gear clutch means;
- and axially shiftable transmission means interconnecting shift output means of said power shift means and said clutch means non-rotatably mounted by said transmission housing.
Dependencies are inferred from the claim text.