JPS643318A - Rotary device - Google Patents
Rotary deviceInfo
- Publication number
- JPS643318A JPS643318A JP62158864A JP15886487A JPS643318A JP S643318 A JPS643318 A JP S643318A JP 62158864 A JP62158864 A JP 62158864A JP 15886487 A JP15886487 A JP 15886487A JP S643318 A JPS643318 A JP S643318A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- cylinder section
- small
- end side
- housing
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 abstract 1
- 230000000452 restraining effect Effects 0.000 abstract 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
PURPOSE:To prevent vibration caused by resonance by coupling the small cylinder section of a rotor with the large cylinder section of a housing from the open end side thereof so as to be dynamic pressure bearing, arranging a motor in a hermetic space between both of the cylinders, and further forming a small hole communicating to open air. CONSTITUTION:A housing 15 including a large cylinder section 3 and a center projection section 11 is opened at one end side, and the outer diameter of the small cylinder section 2 of a rotor 20 is somewhat smaller than the inner diameter of the large cylinder section 3 with its one end side opened so as to couple these ends with each other. There is a small gap between the bearing surface 13 of the inner circumferential surface of the large cylinder section 3 and the outer circumferential surface of the small cylinder section 2, thereby forming grooves 12 acting as the dynamic pressure bearing. A space 10 is hermetic, including a motor 22 inside for the rotor 20, and the hermetic space 10 is communicated to open air through the small hole 9 of the rotor 20. And thrust magnets 7 and 8 attract each other so as to allow the rotor 20 to be floated from the housing 15. In this case, when disturbance is caused from outside, the rotor 20 starts vibrating to the thrust direction so as to let air come in and out through the small hole while acting as resistance for restraining the rotor from being vibrated by the damping action thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62158864A JPH0681963B2 (en) | 1987-06-26 | 1987-06-26 | Rotating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62158864A JPH0681963B2 (en) | 1987-06-26 | 1987-06-26 | Rotating device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS643318A true JPS643318A (en) | 1989-01-09 |
JPH0681963B2 JPH0681963B2 (en) | 1994-10-19 |
Family
ID=15681067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62158864A Expired - Fee Related JPH0681963B2 (en) | 1987-06-26 | 1987-06-26 | Rotating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0681963B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0339714U (en) * | 1989-05-15 | 1991-04-17 | ||
JPH046266U (en) * | 1990-05-02 | 1992-01-21 | ||
JPH0418512A (en) * | 1990-05-14 | 1992-01-22 | Sankyo Seiki Mfg Co Ltd | Dynamic pressure air bearing motor |
US5434479A (en) * | 1992-09-22 | 1995-07-18 | Matsushita Electric Works, Ltd. | Full-bridge inverter for discharge lamp lighting device with varied transistor zero voltage period |
US5702534A (en) * | 1996-05-24 | 1997-12-30 | Armco Inc. | Hydrogen peroxide pickling of stainless steel |
US6215217B1 (en) | 1999-01-06 | 2001-04-10 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Dynamic pressure bearing motor |
US20100284637A1 (en) * | 2007-10-09 | 2010-11-11 | Martin Sentmanat | Compact non-contact mechanical coupling, damping and/or load bearing device |
JP2016524448A (en) * | 2013-07-02 | 2016-08-12 | ロジャー, デイビッドRODGER, David | Reduction of bearing force in electric machines |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49128422A (en) * | 1973-04-16 | 1974-12-09 | ||
JPS5152100Y2 (en) * | 1972-03-08 | 1976-12-14 |
-
1987
- 1987-06-26 JP JP62158864A patent/JPH0681963B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5152100Y2 (en) * | 1972-03-08 | 1976-12-14 | ||
JPS49128422A (en) * | 1973-04-16 | 1974-12-09 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0339714U (en) * | 1989-05-15 | 1991-04-17 | ||
JPH046266U (en) * | 1990-05-02 | 1992-01-21 | ||
JPH0418512A (en) * | 1990-05-14 | 1992-01-22 | Sankyo Seiki Mfg Co Ltd | Dynamic pressure air bearing motor |
US5434479A (en) * | 1992-09-22 | 1995-07-18 | Matsushita Electric Works, Ltd. | Full-bridge inverter for discharge lamp lighting device with varied transistor zero voltage period |
US5702534A (en) * | 1996-05-24 | 1997-12-30 | Armco Inc. | Hydrogen peroxide pickling of stainless steel |
US6215217B1 (en) | 1999-01-06 | 2001-04-10 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Dynamic pressure bearing motor |
US20100284637A1 (en) * | 2007-10-09 | 2010-11-11 | Martin Sentmanat | Compact non-contact mechanical coupling, damping and/or load bearing device |
US8562217B2 (en) * | 2007-10-09 | 2013-10-22 | Smartin Technologies Llc | Compact non-contact mechanical coupling, damping and/or load bearing device |
JP2016524448A (en) * | 2013-07-02 | 2016-08-12 | ロジャー, デイビッドRODGER, David | Reduction of bearing force in electric machines |
Also Published As
Publication number | Publication date |
---|---|
JPH0681963B2 (en) | 1994-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |