JPH01318566A - Rotating apparatus using superconductor - Google Patents

Abstract

PURPOSE:To eliminate an energy loss due to friction by levitating the rotating part of an apparatus with the aid of the Meissner effect of a superconductor. CONSTITUTION:The surrounding part of the center shaft 1 of the rotating part of a rotating apparatus is constituted by a superconductor 2, and a magnet 3 is arranged so as to surround the periphery of the superconductor 2. Thus, a part of the superconductor 2 (the surrounding part of the center shaft 1 of the rotating part) levitates by the Meissner effect within the magnet 3, and an energy loss due to friction between the center shaft 1 and bearing of rotating part is eliminated completely. Also, in this case, one end of the center shaft 1 is provided with a metal conductor 4, and a rotary magnet 5 is provided so as to face the metal conductor 4, and is rotated so that the metal conductor 4 revolves to enable rotation of the center shaft 1 of the rotating part.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for rotating an object, and particularly to a device suitable for efficiently rotating an object for a long time with little energy.

[Prior Art] In the conventional technology, the central axis of the rotating part is always placed on a bearing, and a considerable amount of energy loss occurs due to friction between the central axis of the rotating part and the bearing.

[Problems to be Solved by the Invention] The object of the present invention is to eliminate friction between the central axis of the rotating part and the bearing.

[Means for Solving the Problem] The above problem is solved by providing a superconductor in a part of the rotating part and arranging a magnet around it so that the rotating part floats with respect to the magnet.

[Operation] By utilizing the Meissner effect of superconductors, the rotating parts containing the superconductors are suspended and can rotate without bearings.

[Example] An embodiment of the present invention will be described using FIGS. 1 and 2.

In FIG. 1, a superconductor 2 is arranged around a central axis 1 of a rotating part, and magnets 3 are arranged so as to surround the superconductor 2. In FIG. By doing this, the superconductor 2
The part around the central axis 1 of the rotating part floats inside the magnet 3 due to the Meissner effect, and there is no loss of energy due to friction between the central axis 1 of the rotating part and the bearing, which was a problem in the past. It disappears. At this time, in order to rotate the central axis 1 of the rotating part, a metal conductor 4 is provided at one end of the central axis 1 of the rotating part, a rotating magnet 5 is provided opposite to it, and this rotating magnet 5 is rotated. By doing so, the metal conductor 4 rotates, and the central axis 1 of the rotating portion can be rotated.

Similarly, as a method of rotating using a metal conductor attached to one end, it goes without saying that methods using the principle of an induction motor or an alternating current motor can also be considered.

Furthermore, as a rotation method based on another principle, as shown in FIG. By placing an electromagnet 9 on the S pole 7 and N pole 8 of the permanent magnet in the disk 6, and reversing the polarity of this electromagnet,
There is also a method in which the electromagnet 9 is rotated using the force that attracts the south pole 7 or the north pole 8.

[Effects of the Invention] According to the present invention, there is no loss of energy due to friction between the central axis of the rotating part and the bearing, and efficient rotation is possible.

[Brief explanation of the drawing]

FIG. 1 is a schematic vertical cross-sectional view of a rotating device according to an embodiment of the present invention, and FIG. 2 is a front view of a rotation drive section of a rotating device according to another embodiment of the present invention. 1: Central axis of rotating part, 2: Superconductor, 3: Magnet, 4:
Metal conductor, 5: Rotating magnet, 6: Superconductor disk, 7:
S pole of permanent magnet, 8: N pole of permanent magnet, 9: Electromagnet.

Claims (1)

[Scope of Claims] 1. A rotating part made of a superconductor having a part of ferromagnetic material, a magnet that floats the rotating part and at the same time fixes the movement in the axial direction, and a magnet provided at one end of the central axis of the rotating part. 1. A rotating device using a superconductor, characterized in that it has a metal conductor and a rotating magnet provided opposite to the metal conductor. 2. A rotating part in which S and N poles of permanent magnets are alternately embedded along the circumferential direction of a superconductor disk, and the permanent magnet S
A superconductor characterized by having an electromagnet provided on a pole and a north pole, and means for rotating the electromagnet by reversing the polarity of the electromagnet using the force that attracts the electromagnet to the south pole or the north pole. Rotating device.