Machine element or mechanism – Elements – Gear casings
Patent
1981-03-26
1983-12-20
Staab, Lawrence J.
Machine element or mechanism
Elements
Gear casings
74665T, 74677, 74687, 180 644, 180 67, F16H 3706
Patent
active
044209916
ABSTRACT:
A drive system for a track-laying vehicle has a main drive shaft connectable to an engine and to primary inputs of right and left summing transmission having secondary inputs and having outputs connected to the secondary inputs of the summing transmissions so that when the compensating shaft is rotated in one direction the one input is rotated one way and the other the opposite way and vice versa. A planetary-gear transmission has a pair of separate inputs and an output connected to the compensating shaft. A variable speed hydrostatic transmission has its input connected to the main drive shaft and its output connected to one of the inputs of the planetary-gear transmission. A first clutch has one side connected to the output of the hydrostatic transmission and to one input of the planetary-gear transmission and another side connected to the compensating shaft. A second clutch has one side connected to the other input of the planetary-gear transmission and another side operatively connected to the main drive shaft. This first clutch is closed and the second clutch is open for low-range steering, and vice versa for high-range steering for a sharp turn.
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Dubno Herbert
Rolnicki Joseph M.
Ross Karl F.
Staab Lawrence J.
Zahnradfabrik Friedrichshafen AG
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