DEVICE FOR CONTROLLING THE BLADES OF A HELICOPTER OF SIMILAR

摘要

The invention relates to a device for controlling the blades of a helicopter rotor or similar, including a blade-supporting rotor mast (1). The control device consists of a swash plate (10) extending around the rotor mast and comprising a stationary ring (11) and a rotating ring (12) which is rotationally mounted on the stationary ring and which is connected to the blades and, therefore, rotates with the rotor; and three actuators (23) which generate the controlled movement of the rotating ring both in translation in parallel to the rotor mast and angularly about axes perpendicular to the rotor mast. According to the invention, the three actuators are disposed substantially at the swash plate in the side extension of same, each actuator including a moving part (21) which is directly connected to the stationary ring in order to form therewith a sliding joint such that the movement of the moving part of one of the actuators generates the movement of the associated part of the stationary ring along an axis of the rotor mast (Z).