Orientation stabilizing device

An orientation-stabilizing device, comprising:

• a motor stator having a coil disposed on an outer circumferential surface of a center shaft, the coil being magnetized when electricity flows through it;
• a motor rotor made of a permanent magnetic material, disposed outside the coil, and configured to rotate in response to the magnetism;
• a flywheel having a central inner circumferential surface fixed to the motor rotor to rotate together with the motor rotor;
• a cover installed on the center shaft and configured to surround the flywheel;
• and
• a bearing installed between the flywheel and the cover, and configured to allow the flywheel to rotate in an aligned state inside the cover,
• wherein the motor stator and the motor rotor do not protrude toward a surface of the cover;
• wherein an outer ring of the bearing is installed on an inner circumferential surface of the flywheel, and an inner ring of the bearing is installed on the cover,
• wherein a first key is formed at an end of the center shaft, a second key is formed in a center hole of the cover, and the first key and the second key are assembled so that the motor stator and the cover are fixed together to prevent relative rotation,
• wherein the orientation-stabilizing device further comprises:
• a first stabilizer and a second stabilizer;
• and
• a base plate on which the first and second stabilizers are installed,
• wherein the first stabilizer has coupling parts formed on both sides of an inclined axis of the first stabilizer, a first coupling part of the first stabilizer is connected to a motor shaft of a first motor, and a second coupling part of the first stabilizer is installed on a bracket,
• wherein the second stabilizer has coupling parts formed on both sides of an inclined axis of the second stabilizer, a third coupling part of the second stabilizer is connected to a motor shaft of a second motor, and a fourth coupling part of the second stabilizer is installed on a bracket, and
• wherein the inclined axes of the first and second stabilizers are arranged to be orthogonal to each other.