Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1987-03-19
1988-10-11
Wright, Dirk
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74705, 74682, 74675, 180 644, F16H 3706
Patent
active
047762365
ABSTRACT:
A no-slip, imposed differential uses a first unlimited slip differential 15 connected for driving a pair of axle shafts 16 and 17 and a second unlimited slip differential 20 connected between a pair of control shafts 22 and 23. One of the axle shafts and one of the control shafts are connected for rotation in the same direction, and the other axle shaft and the other control shaft are connected for rotation in opposite directions. An input control gear 40 meshed with a ring gear 21 for second differential 20 can rotate control shafts 22 and 23 to impose differential rotation on axle shafts 16 and 17 via the shaft connecting means. This provides a no-slip drive when control gear 40 is not turning and a steering drive by imposed differential rotation when control gear 40 turns. A clutched power take-off 82 can direct propulsion torque to the steering control input for rapid pivot turns.
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Gleasman James Y.
Gleasman Keith E.
Gleasman Vernon E.
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