Multifunctional electromechanical device for landing gear

摘要

A multifunction electromechanical device for an aircraft undercarriage. The device comprises a first shaft (10) mounted to rotate on the aircraft about an axis of rotation (R) that is substantially parallel to a hinge axis (X) of the undercarriage relative to the aircraft and a telescopic second shaft (20) mounted to rotate on the undercarriage extending downwards to the proximity of the wheels carried thereby. The device also includes a transmission (19) for transmitting rotary motion from the first shaft to the second shaft and a transmission (21) for transmitting rotary motion from the second shaft to at least one wheel carried by the undercarriage. With this configuration, if the wheel is not fitted with a brake, there is a specific brake (30) for braking one of the shafts relative to the undercarriage, and a motor (11, 15) for causing the first shaft to rotate.

主权项

1. A method of raising an aircraft undercarriage fitted with a multifunction electromechanical device from a deployed position to a stowed position, said multifunction electromechanical device comprising at least:
a first shaft mounted to rotate on the aircraft about an axis of rotation that is substantially parallel to a hinge axis of the undercarriage relative to the aircraft; a telescopic second shaft mounted to rotate on the undercarriage extending down therealong to the proximity of the wheels carried thereby; transmission means for transmitting rotary motion from the first shaft to the telescopic second shaft; transmission means for transmitting rotary motion from the telescopic second shaft to at least one wheel carried by the undercarriage; a wheel brake fitted to the wheel; and motor means for causing the first shaft to rotate;the method comprising the following steps:
(1) unlocking a side-brace member of the undercarriage; (2) preventing the second shaft of the multifunction electromechanical device from rotating relative to the undercarriage, by actuating the wheel brake; and (3) operating the motor means to cause the first shaft to rotate relative to the structure of the aircraft.