Temporary locking device for a rotor, especially of a fly wheel rotor with magnetic suspension for space applications

摘要

according to the invention uses a geneva movement mechanism (3) (f) in rotation in one direction or the other by an electric motor (8). the mechanism (3) includes a cross of malta (31) around the axis of rotation (a) of the rotor (6) and with an annular part (5).the cross of malta (31) is coupled mechanically to a ball screw (4) coaxial to the axis of rotation (a), so as to convert the rotation movement (f) consisting of a linear component (f), to close or away will play ring (5) in such a way as to obtain a contact with the rotor (6), and a self blocking locking against a fixed wall (70).or, on the contrary, its release by a translation in the opposite direction of the annular part (5).;application to a flywheel (2) for controlling the attitude of a satellite.