TWO DEGREES OF FREEDOM BALL BEARING SUSPENSION FOR A ROTOR OF A GYROSCOPE

摘要

A two degrees of freedom ball bearing suspension for a rotor of a gyroscope to compensate for coercive torques through the provision of a torque wire connected between a drive element of a motor and the rotor of the gyroscope, the drive element of the motor being rotatably carried by internal roller bearings mounted in a stator element of the motor and the rotor of the gyroscope being rotatably mounted on a universal ball bearing joint supported by the stator element of the motor, the rotor of the gyroscope being axially biased toward the universal ball bearing joint under tension applied through the torque wire by a disc type belleville spring positioned between an end of the internal roller bearings and an internal surface of the stator element so that the coercive torques may be minimized by a negative spring action effected by the torque wire due to the tension therein so that the total elastic restraint of the ball bearing suspension may be brought extremely close to zero.