Differential gear for a multi-shaft wheeled motor vehicle, and a drive train comprising several such differential gears
AssigneeBAE Systems Hägglunds Aktiebolag
InventorJoakim Hultgren
Life of this patent
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Abstract
A differential gear, comprising a first releasable lock (42, 44) between a crown wheel (14) and the one drive shaft, a second, releasable lock (66, 68) between the crown wheel (14) and a differential housing (24), and a third releasable lock (74, 76) between the differential housing (24) and fixed vehicle part (26). The second and third locks are designed to be opened and locked alternately with one another. It is thereby possible to achieve drive shafts rotating in opposite directions to one another on the left and right side of the vehicle and thereby to achieve a center swiveling of the vehicle when the first lock (42, 44) is simultaneously kept in the locked position.
Claims18
A differential gear for a multi-axle wheeled vehicle, the vehicle having drive to all axles, the differential gear comprising:
- a differential housing which is associated with a wheel pair of the vehicle and is coaxially connected to a respective crown wheel;
- a plurality of differential gears, which are rotatably supported in the differential housing, wherein:
- a first subset of the differential gears meshes with a first drive shaft gear, and the first drive shaft gear is configured to drive a first drive shaft of the wheel pair,
- a second subset of the differential gears meshes with a second drive shaft gear, and the second drive shaft gear is configured to drive a second drive shaft of the wheel pair, and
- an axis of rotation of the first drive shaft gear and an axis of rotation of the second drive shaft gear coincide with an axis of rotation of the crown wheel;
- and
- a first releasable lock between the crown wheel and the first drive shaft,
- wherein the connection between the crown wheel and the differential housing forms a second releasable lock, and the differential housing can be connected to a fixed housing part by way of a third releasable lock, the second and third locks being designed to be opened and locked alternately with one another.
Dependencies are inferred from the claim text.