초록 ▼

A superconduction bearing is provided in which the load capacity and rigidity of a rotary member are improved, run-out of the rotary member is prevented to support the rotary member in a stable, non-contacting manner, and manufacturing cost is reduced. The superconduction bearing includes a rotary m

A superconduction bearing is provided in which the load capacity and rigidity of a rotary member are improved, run-out of the rotary member is prevented to support the rotary member in a stable, non-contacting manner, and manufacturing cost is reduced. The superconduction bearing includes a rotary member and a disk formed on the rotary member. The disk has permanent magnets provided thereon. The permanent magnets are magnetized to have opposite poles on top and bottom sides thereof. A permanent magnet section is thus formed by the disk and the permanent magnets. Superconductors are concentrically provided for rotatably supporting the rotary member. The permanent magnet section and the superconductor section are positioned opposite to each other. The width and thickness of the permanent magnets are set to 5 to 10 times the distance between the permanent magnet section and the superconductor section.

대표청구항 ▼

A superconduction bearing comprising: a rotor including an axle-like rotary member and a disk disposed around said axle-like rotary member; a supporting means, cooled by cooling medium, for supporting a plurality of superconductors, said supporting means including at least a horizontally extending f

A superconduction bearing comprising: a rotor including an axle-like rotary member and a disk disposed around said axle-like rotary member; a supporting means, cooled by cooling medium, for supporting a plurality of superconductors, said supporting means including at least a horizontally extending flat plate having a central hole formed therein and an upstanding circumferential wall provided on said flat plate; said disk including a ring-shaped series of recesses formed therein; superconductors arranged, at even intervals, in a concentric circle surrounding said axle-like rotary member; said axle-like rotary member being oriented in a vertical direction so that a lower end of said axle-like rotary member is passed through said central hole; said disk being placed above said flat plate and radially inside of said circumferential wall; and a plurality of permanent magnets disposed at a distance from said superconductors, each of said magnets disposed in one of said series of recesses; each of said permanent magnets having a top surface and a bottom surface, said top surface and said bottom surface of each of said permanent magnets being oppositely magnetized relative to each other, each of said permanent magnets having a width which is 5 to 10 times as large as said distance between said superconductors and permanent magnets.