Electrical actuator for aircraft multiple rotor disc brake has main motor operating screw and nut drive with secondary motor for secondary outer drive nut

摘要

The electrical actuator for an aircraft multiple rotor disc brake has a first reversible assembly with a central screw (1) operated by an electric motor (2) and a nut (3) axially displaced on the screw. The nut has an intermediate coupling (4) to allow selective reversal of the drive. There is a second irreversible drive with an annular screw (5) attached to the exterior of the nut and a second motor (6) to drive the screw and nut. A second nut is fixed to the framework (9) but axially movable on the annular screw.