| 摘要 |
PROBLEM TO BE SOLVED: To provide a superconductive bearing for rotary equipment, which can obtain a large levitation force with the combination of a permanent magnet at a small diameter and a superconductor, and provide an electric power storing flywheel using this superconductive bearing. SOLUTION: Permanent magnets are superposed on each other in a rotating member at multiple stages in the axial direction, and a superconductor is arranged in a fixed member opposite to the permanent magnet so as to form a superconductive bearing with the pin-lock effect. In an electric power storing flywheel, a hollow outer rotor 5 is stood inside of a rotating outer ring 3, and permanent magnets 10 are superposed at multiple stages in the axial direction along the inner periphery of the outer rotor 5, and a superconductor 11 is arranged in the periphery of a fixed shaft 2, which is inserted into the outer rotor 5, opposite to the permanent magnets 10, and the outer rotor 5 is levitated by the pin-lock effect. |
