DEVICE FOR SELECTIVE CONNECTION OF A MOTOREDUCTEUR TO AN AIRCRAFT WHEEL, TO PERMIT ITS SELECTIVE TRAINING BY THE MOTOREDUCER.

摘要

The invention relates to a device for connecting a geared motor to an aircraft wheel, comprising: a casing carrying a shaft (4) rotatable to be driven by the geared motor, the shaft having a fluted portion ( 7) on which a pinion (8) is slidably mounted along a longitudinal axis of the shaft (4) without rotation with respect thereto; - A ring gear (9) intended to be secured in rotation to the aircraft wheel; means for axially moving the pinion (8) between a retracted position in which it is disengaged from the ring gear (9) and an engaged position in which the pinion (8) meshes with the ring gear (9). According to the invention, the axial displacement means of the pinion (8) comprise a hollow screw / nut assembly (11, 13) extending around the shaft (4), one of the elements of the assembly nut being axially secured to the pinion but prevented from rotating by an anti-rotation member, and the other of the elements of the screw / nut assembly being rotatably mounted in the housing (1) to be selectively driven by an electric motor (20). ), so that a rotation of the electric motor (20) causes an axial displacement of the pinion (8).