| 摘要 |
The invention relates to a device for coupling two shafts that are intended to rotate in the continuation of one another with respect to a casing ( 4 ). A dog clutch couples the two shafts. The device comprises clutch-release means allowing the dog clutch ( 9 ) to be uncoupled. According to the invention, the clutch-release means comprise a ramp ( 17 ) secured to the casing ( 4 ), the ramp ( 17 ) having a helical shape around the axis ( 1 ), a flat disk ( 19 ) secured to the first shaft ( 3 ) the plane of which is more or less perpendicular to the axis ( 1 ), an element ( 20 ) intended to roll between the ramp ( 17 ) and the disk ( 19 ) so as to cause a translational movement of the first shaft ( 3 ) with respect to the casing ( 4 ) more or less along the axis ( 1 ), the translational movement allowing the dog clutch ( 9 ) to be uncoupled. The specific structure of the clutch-release means enables the shafts to be uncoupled while they are in rotation.
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