JPS57186618A - Magnetic bearing device - Google Patents
Magnetic bearing deviceInfo
- Publication number
- JPS57186618A JPS57186618A JP7167781A JP7167781A JPS57186618A JP S57186618 A JPS57186618 A JP S57186618A JP 7167781 A JP7167781 A JP 7167781A JP 7167781 A JP7167781 A JP 7167781A JP S57186618 A JPS57186618 A JP S57186618A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- bearing
- spring force
- axially
- constant
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C39/00—Relieving load on bearings
- F16C39/06—Relieving load on bearings using magnetic means
- F16C39/063—Permanent magnets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
- F16C32/0425—Passive magnetic bearings with permanent magnets on both parts repelling each other for radial load mainly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
PURPOSE:To improve the stability of bearing function by supporting a permanent magnet on the static side in such a manner as to move only axially so that even if a permanent magnet on the rotation side is displaced axially, supporting functions are always shown at a fixed bearing constant. CONSTITUTION:A bearing 12 is rotatably attached to the outer peripheral surface of a second permanent magnet 6 disposed on the static side, and the permanent magnet 6 which is movable axially and immovable radially is hung down from the upper wall of a guide member 11 through a spring 13. When a first permanent magnet 4 on the rotation side is moved in the direction of an arrow Y1 for DELTAY1, the distance between each N-pole of the permanent magnets 4, 6 is shortened to increase a spring force K1, and on the countrary, a spring force K2 between S-poles decreases. The permanent magnet 6 is pushed up in the direction of Y1 by a difference between the spring force K1 and K2 to be stable at a balanced position. Therefore, the relative position between the permanent magnets 4, 6 is always kept constant, so that the bearing constant is fixed from the assembling time to the operation time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7167781A JPS57186618A (en) | 1981-05-13 | 1981-05-13 | Magnetic bearing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7167781A JPS57186618A (en) | 1981-05-13 | 1981-05-13 | Magnetic bearing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57186618A true JPS57186618A (en) | 1982-11-17 |
Family
ID=13467440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7167781A Pending JPS57186618A (en) | 1981-05-13 | 1981-05-13 | Magnetic bearing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57186618A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2660112A1 (en) * | 1990-03-20 | 1991-09-27 | Gen Electric Cgr | Weight compensation device for X-ray tube including passive magnetic bearings |
US5521448A (en) * | 1994-08-01 | 1996-05-28 | Mechanical Technology Incorporated | Damping for passive magnetic bearings |
CN108518347A (en) * | 2018-06-11 | 2018-09-11 | 杭州大路实业有限公司 | A kind of integral shaft synchronizes canned motor pump to suspension permanent magnet |
-
1981
- 1981-05-13 JP JP7167781A patent/JPS57186618A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2660112A1 (en) * | 1990-03-20 | 1991-09-27 | Gen Electric Cgr | Weight compensation device for X-ray tube including passive magnetic bearings |
US5117448A (en) * | 1990-03-20 | 1992-05-26 | General Electric Cgr S.A. | Weight compensation device for x-ray tube comprising passive magnetic bearings |
US5521448A (en) * | 1994-08-01 | 1996-05-28 | Mechanical Technology Incorporated | Damping for passive magnetic bearings |
CN108518347A (en) * | 2018-06-11 | 2018-09-11 | 杭州大路实业有限公司 | A kind of integral shaft synchronizes canned motor pump to suspension permanent magnet |
CN108518347B (en) * | 2018-06-11 | 2024-03-15 | 杭州大路实业有限公司 | Integrated axial suspension permanent magnet synchronous shielding pump |
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