JPS6235160U

JPS6235160U -

Info

Publication number: JPS6235160U
Application number: JP12841285U
Authority: JP
Priority date: 1985-08-21
Filing date: 1985-08-21
Publication date: 1987-03-02

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による超電導回転
電機のシール装置を示す断面図、第２図はその縦
断面図、第３図は従来の超電導回転電機のシール
装置を示す断面図である。図において、１はケーシング、２はポールピー
ス、６は回転軸、７はブツシユ、１０は円筒磁石
、１１は一対の磁石保持枠、１２は永久磁石、１
３は磁石スペーサである。尚、図中同一符号は同
一又は相当部分を示す。 FIG. 1 is a sectional view showing a sealing device for a superconducting rotating electrical machine according to an embodiment of the invention, FIG. 2 is a longitudinal sectional view thereof, and FIG. 3 is a sectional view showing a conventional sealing device for a superconducting rotating electrical machine. In the figure, 1 is a casing, 2 is a pole piece, 6 is a rotating shaft, 7 is a bushing, 10 is a cylindrical magnet, 11 is a pair of magnet holding frames, 12 is a permanent magnet, 1
3 is a magnetic spacer. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of Claim for Utility Model Registration] (1) A casing made of a magnetic material into which a rotating shaft made of a non-magnetic material is inserted, a cylindrical magnet mounted inside the casing, and a cylindrical magnet inserted into the casing. a pair of pole pieces made of a magnetic material attached to both sides of the pole piece and supporting the rotation shaft via bearings; and a bush made of a magnetic material located on the inner peripheral side of each of the pole pieces and attached to the rotation shaft. , which is equipped with a plurality of sealing means for sealing between the bush and the pole piece using magnetic fluid, wherein the cylindrical magnet is constituted by an outer ring and an inner ring, and the contact surface between the outer ring and the inner ring is A pair of magnet holding frames each having a plurality of magnet holding grooves formed on either side, a permanent magnet inserted into the magnet holding groove of the pair of magnet holding frames, and a permanent magnet arranged on both ends of the permanent magnet. 1. A sealing device for a superconducting rotating electrical machine, characterized in that the sealing device comprises a magnetic spacer and a magnetic spacer. (2) A sealing device for a superconducting rotating electric machine according to claim 1, wherein the pair of magnet holding frames are fixed with an adhesive material. (3) A sealing device for a superconducting rotating electric machine according to claim 1 or 2 of the utility model registration claim, wherein the permanent magnet has an arc shape. (4) A sealing device for a superconducting rotating electric machine according to any one of claims 1 to 3 of the utility model registration claim, wherein the permanent magnet is fixed to a pair of magnet holding frames with an adhesive material. (5) The sealing device for a superconducting rotating electric machine according to any one of claims 1 to 4 of the claims for utility model registration, wherein the permanent magnet is constituted by a rare earth magnet. (6) The sealing device for a superconducting rotating electric machine according to any one of claims 1 to 5 of the claims 1 to 5, wherein the magnet spacer is fixed to the pair of magnet holding frames with an adhesive material. (7) A sealing device for a superconducting rotating electric machine according to any one of claims 1 to 6, wherein the magnetic spacer is made of magnetic stainless steel.