GYROSCOPIC INSTRUMENT Russian patent published in 2002 - IPC

FIELD: control systems of guided artillery projectiles. SUBSTANCE: gyroscopic instrument includes case, rotor put on internal gimbal suspension oriented along longitudinal axis of projectile, spring motor for acceleration of rotor, supporting bushing mounted between rotor and case for longitudinal movement by springy member. Gimbal suspension is installed in base mounted in case for turning by springy member. Supporting bushing comes in the form of double-stepped cylinder placed with step of smaller diameter in cylindrical part of case and kinematically coupled to base of gimbal suspension in angular direction. Face surface of its step of bigger diameter contacts base surface of rotor and case that has grooves matched with protrusions of supporting bushing when turned. Depth of grooves is not less than height of protrusions. Torque of springy member is directed in opposition and is less in value than moment of spring motor applied to base of gimbal suspension. EFFECT: raised accuracy of instrument by way of reduction of change of angular position ( malfunction ) of axis of rotor in process of uncaging. 2 dwg