| 摘要 |
The device has a casing that is provided to rotate a tree intended to be driven by the motor reducer. The tree is provided with one grooved portion on which a pinion went up to slide along a longitudinal axis of the tree without rotation. A crown wheel is intended to be solidarized in rotation with the wheel of aircraft. A hollow screw unit/nut is extended around the tree. One element of the screw unit is axially interdependent of the pinion, and other element is gone up in the casing, so that a rotation of electrical motor causes an axial displacement of the pinion. |
