| 摘要 |
The invention relates to a device for coupling two shafts which are intended for rotating in the prolongation of one another with respect to a casing. A dog clutch ensures that the two shafts are coupled. The device comprises clutch release means making it possible to uncouple the dog clutch. According to the invention, the clutch release means comprise a screw secured to one of the shafts, a nut secured to a flywheel and cooperating with the screw, the screw and the nut having an axis coinciding substantially with the axis of rotation of the shafts, and a brake for braking the rotation of the flywheel with respect to the casing, and, in the clutch engagement position, the braking of the flywheel slackens the nut of the screw and drives one of the shafts in translational motion along said axis, so as to uncouple the dog clutch. The particular structure of the clutch release means makes it possible to uncouple the shafts when these are in rotation.
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