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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 v

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.

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1. 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, whic

1. 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, andan 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; anda 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. 2. The differential gear as claimed in claim 1, further comprising: a clutch ring, the clutch ring being rotationally locked to the differential housing and axially displaced to the differential housing, wherein the second releasable lock comprises a first clutch side of the clutch ring, and the first clutch side can be rotationally locked to the crown wheel. 3. The differential gear as claimed in claim 2, wherein the third releasable lock comprises a second clutch side of the clutch ring, opposite the first clutch side, that can be releasably connected to the fixed housing part. 4. The differential gear as claimed in claim 3, wherein the first clutch side and the second clutch side of the clutch ring are dog clutches, the second releasable lock further comprises a first dog clutch configuration that interacts with the first clutch side, wherein the first dog clutch configuration is on a first clutch half, and the first clutch half is rotationally locked to the crown wheel, and the third releasable lock further comprises a second dog clutch configuration, wherein the second dog clutch configuration is connected to the fixed housing part. 5. The differential gear as claimed in claim 3, further comprising an operating element for selective axial displacement of the clutch ring so that the clutch ring engages and disengages with a first clutch half, wherein the first clutch half is rotationally locked to the crown wheel. 6. The differential gear as claimed in claim 5, wherein the operating element is designed to produce a selective axial displacement of the clutch ring so that the clutch ring is alternately in locking engagement with the crown wheel and the fixed housing part. 7. The differential gear as claimed in claim 5, wherein the operating element comprises an annular operating sleeve, and wherein the annular operating sleeve surrounds the clutch ring and is provided with driver elements designed for axial lateral displacement of the clutch ring from an engagement position with the crown wheel to an alternative engagement position with the fixed housing part, and vice-versa. 8. The differential gear as claimed in claim 7, wherein the driver elements comprise slide elements and the slide elements adjoin a radially projecting rib on the clutch ring. 9. The differential gear as claimed in claim 7, wherein the operating element further comprises at least three pin-groove mechanisms, each pin-groove mechanism having a pin and a groove, and wherein the at least three pin-groove mechanisms are evenly spaced in a circumferential direction between the operating sleeve and the fixed housing part. 10. The differential gear as claimed in claim 9 wherein: each of the grooves is a slanting guide groove, and wherein each of the pins is a guide pin anchored in the fixed housing part, and each of the pins is designed to engage in each of the respective slanting guide grooves in the operating sleeve. 11. The differential gear as claimed in claim 9, wherein the operating element further comprises at least one tangentially acting drive device designed to rotate the operating sleeve in the circumferential direction while allowing a limited axial movement of the operating sleeve and the clutch ring, and wherein the limited axial movement is allowed by way of the driver elements and the at least three pin-groove mechanisms. 12. The differential gear as claimed in claim 2, wherein the clutch ring is axially displaceable to the differential housing via a splined connection. 13. The differential gear as claimed in claim 1, wherein the first releasable lock between the crown wheel and the first drive shaft comprises a clutch plate, the clutch plate is supported so that it is rotationally locked and axially displaceable on an output shaft in the differential gear, and the clutch plate is designed to be capable of engagement with a second clutch half associated with the crown wheel. 14. The differential gear as claimed in claim 13, further comprising an axially acting drive device designed to displace the clutch plate into and out of an engagement position with the second clutch half associated with the crown wheel. 15. The differential gear as claimed in claim 14, wherein a first clutch half of the crown wheel is arranged on an outer peripheral part of a first side of the crown wheel, and the second clutch half is arranged on a radially inner hub part of a second side of the crown wheel. 16. The differential gear as claimed in claim 1, wherein each of the differential gears comprises an axis of rotation, and the axes of rotation for each of the differential gears are parallel, and wherein the differential gears intermesh in pairs with one another in an axially overlapping relationship at circumferentially separated points around the first and second drive shafts. 17. The differential gear as claimed in claim 1, wherein each of the differential gears comprises an axis of rotation, and the axes of rotation for each of the differential gears are at right angles to the first and second drive shafts, and wherein each differential gear meshes with both the first and second drive shaft gears at circumferentially separated points around the first and second drive shafts. 18. The differential gear as claimed in claim 1, wherein the third releasable lock is designed to be kept in a locked position while the first releasable lock is in a locked position and the second releasable lock is in an open position, in order to permit rotation of the first and second drive shafts in opposite directions of rotation.