JPH0482430U - - Google Patents
Info
- Publication number
- JPH0482430U JPH0482430U JP12431190U JP12431190U JPH0482430U JP H0482430 U JPH0482430 U JP H0482430U JP 12431190 U JP12431190 U JP 12431190U JP 12431190 U JP12431190 U JP 12431190U JP H0482430 U JPH0482430 U JP H0482430U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- circumferential surface
- rotating shaft
- annular
- rotating body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims description 3
Description
第１図は、本考案の一実施例によるスラスト磁
気軸受の断面図、第２図は第１図の一点鎖線内の
部分を変更した第２実施例の断面図である。
図中、１……固定軸、２……回転スリーブ（回
転軸）、３……ハウジング、４……取付フランジ
、５……動圧ミゾ、６……ポリゴンミラー、７…
…モータ・ロータ、８……モータ・ステータ、９
……カバー、１０……環状永久磁石、１１……環
状磁性板、１２……ミラー取付鍔、１３ａ，１３
ｂ……外周面、１４ａ，１４ｂ……内周面。
FIG. 1 is a sectional view of a thrust magnetic bearing according to an embodiment of the present invention, and FIG. 2 is a sectional view of a second embodiment in which the portion within the dashed line in FIG. 1 is modified. In the figure, 1... Fixed shaft, 2... Rotating sleeve (rotating shaft), 3... Housing, 4... Mounting flange, 5... Dynamic pressure groove, 6... Polygon mirror, 7...
...Motor/rotor, 8...Motor/stator, 9
... Cover, 10 ... Annular permanent magnet, 11 ... Annular magnetic plate, 12 ... Mirror mounting collar, 13a, 13
b...outer peripheral surface, 14a, 14b...inner peripheral surface.
Claims (1)
記固定軸に回転自在に装着された円筒状の回転軸
２と、前記回転軸の外周に配置され外周面を有す
る磁性回転体と、前記磁性回転体の外周面に対向
する内周面を有しかつ前記ハウジングに固定され
た環状磁性板１１と、該環状磁性板に挟持された
環状永久磁石１０とを含み、前記磁性回転体の外
周面及び前記環状磁性板の内周面を通つて作用す
る前記環状永久磁石からの磁力作用により前記回
転軸を浮上させるようにしたスラスト磁気軸受に
おいて、前記磁性回転体及びその外周面の前記回
転軸の一部に併設し、前記回転軸に前記磁性回転
体の機能を併含させるようにしたことを特徴とす
るスラスト磁気軸受。 (2) 前記回転軸の一部に多面鏡を支持する多面
鏡取付鍔を有し、前記多面鏡取付鍔の外周に前記
磁性回転体の外周面を形成したことを特徴とする
実用新案登録請求の範囲第１項記載のスラスト磁
気軸受。 (3) 前記環状磁性板の２つの内周面に対向する
前記磁性回転体の外周面は単一の面から成ること
を特徴とする実用新案登録請求の範囲第２項記載
のスラスト磁気軸受。[Claims for Utility Model Registration] (1) A fixed shaft 1 fixed to a housing 3, a cylindrical rotating shaft 2 rotatably attached to the fixed shaft, and an outer circumferential surface arranged on the outer periphery of the rotating shaft. an annular magnetic plate 11 having an inner circumferential surface facing the outer circumferential surface of the magnetic rotating body and fixed to the housing, and an annular permanent magnet 10 sandwiched between the annular magnetic plates. In the thrust magnetic bearing, the rotating shaft is levitated by the magnetic force from the annular permanent magnet acting through the outer circumferential surface of the magnetic rotating body and the inner circumferential surface of the annular magnetic plate. and a thrust magnetic bearing, characterized in that the thrust magnetic bearing is provided along with a part of the rotating shaft on its outer circumferential surface so that the rotating shaft also has the function of the magnetic rotating body. (2) A request for registration of a utility model characterized in that a part of the rotating shaft has a polygonal mirror mounting collar for supporting a polygonal mirror, and the outer peripheral surface of the magnetic rotating body is formed on the outer periphery of the polygonal mirror mounting collar. A thrust magnetic bearing according to item 1. (3) The thrust magnetic bearing according to claim 2, wherein the outer circumferential surface of the magnetic rotating body that faces the two inner circumferential surfaces of the annular magnetic plate consists of a single surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12431190U JPH0482430U (en) | 1990-11-28 | 1990-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12431190U JPH0482430U (en) | 1990-11-28 | 1990-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0482430U true JPH0482430U (en) | 1992-07-17 |
Family
ID=31871969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12431190U Pending JPH0482430U (en) | 1990-11-28 | 1990-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0482430U (en) |
-
1990
- 1990-11-28 JP JP12431190U patent/JPH0482430U/ja active Pending
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