JPS5659027A - Magnetic bearing - Google Patents

Magnetic bearing

Info

Publication number
JPS5659027A
JPS5659027A JP13549279A JP13549279A JPS5659027A JP S5659027 A JPS5659027 A JP S5659027A JP 13549279 A JP13549279 A JP 13549279A JP 13549279 A JP13549279 A JP 13549279A JP S5659027 A JPS5659027 A JP S5659027A
Authority
JP
Japan
Prior art keywords
permanent magnets
magnetic bearing
fitting
magnets
revolving shaft
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
Application number
JP13549279A
Other languages
Japanese (ja)
Other versions
JPS6327577B2 (en
Inventor
Masaharu Miki
Tadao Ishizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP13549279A priority Critical patent/JPS5659027A/en
Publication of JPS5659027A publication Critical patent/JPS5659027A/en
Publication of JPS6327577B2 publication Critical patent/JPS6327577B2/ja
Granted legal-status Critical Current

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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0474—Active magnetic bearings for rotary movement
    • F16C32/0476—Active magnetic bearings for rotary movement with active support of one degree of freedom, e.g. axial magnetic bearings
    • 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
    • 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
    • F16C32/044—Active magnetic bearings
    • F16C32/0459—Details of the magnetic circuit
    • F16C32/0461—Details of the magnetic circuit of stationary parts of the magnetic circuit
    • F16C32/0465—Details of the magnetic circuit of stationary parts of the magnetic circuit with permanent magnets provided in the magnetic circuit of the electromagnets

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

PURPOSE: To increase a damping effect in the radial direction by fitting a part of stationary magnets in a radial bearing vertically movably to the revolving shaft and packing a viscous material between the movable magnet and a stationary fitting.
CONSTITUTION: In a magnetic bearing, repulsion type radial magnetic bearings A are provided at both ends and a thrust direction control magnetic bearing B is in the middle. Each repulsion type radial magnetic bearing A consists of permanent magnets 5 secured to a revolving shaft 8 and three permanent magnets 6 provided on the side of a stator and opposed to the permanent magnets 5. Of the three permanent magnets 6, the intermediate magnet 6' can be shifted in the radial direction at right angles with the revolving shaft 8 and the rest two permanent magnets 6", 6" are fixed to fittings 7. The magnets 6', 6" and 5, 6 are disposed so as to repel each other, respectively. A viscous material 9 such as an oil is packed between the magnet 6' and the fitting 7 to control a damping force.
COPYRIGHT: (C)1981,JPO&Japio
JP13549279A 1979-10-19 1979-10-19 Magnetic bearing Granted JPS5659027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13549279A JPS5659027A (en) 1979-10-19 1979-10-19 Magnetic bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13549279A JPS5659027A (en) 1979-10-19 1979-10-19 Magnetic bearing

Publications (2)

Publication Number Publication Date
JPS5659027A true JPS5659027A (en) 1981-05-22
JPS6327577B2 JPS6327577B2 (en) 1988-06-03

Family

ID=15152992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13549279A Granted JPS5659027A (en) 1979-10-19 1979-10-19 Magnetic bearing

Country Status (1)

Country Link
JP (1) JPS5659027A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231720A (en) * 1985-07-31 1987-02-10 Copal Electron Co Ltd Damper device of magnetic bearing
JPS62177314A (en) * 1986-01-30 1987-08-04 Shimadzu Corp Magnetic floating type rotary machine
JPS63190928A (en) * 1987-02-03 1988-08-08 Koyo Seiko Co Ltd Dynamic pressure bearing
US5514924A (en) * 1992-04-30 1996-05-07 AVCON--Advanced Control Technology, Inc. Magnetic bearing providing radial and axial load support for a shaft
US5521448A (en) * 1994-08-01 1996-05-28 Mechanical Technology Incorporated Damping for passive magnetic bearings
US5804899A (en) * 1995-04-07 1998-09-08 Aerospatiale Societe Nationale Industrielle Miniature magnetic bearing with at least one active axis
JP2005322829A (en) * 2004-05-11 2005-11-17 Nittoku Eng Co Ltd Center pressing device and method for winding machine
CN104832538A (en) * 2015-05-25 2015-08-12 哈尔滨工业大学 Magnetically decoupled permanent magnet bias active and passive hybrid axial radial magnetic bearings
WO2016166006A1 (en) * 2015-04-16 2016-10-20 Montres Breguet S.A. Magnetic antishock system for a timepiece arbor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54121143U (en) * 1978-02-13 1979-08-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54121143U (en) * 1978-02-13 1979-08-24

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231720A (en) * 1985-07-31 1987-02-10 Copal Electron Co Ltd Damper device of magnetic bearing
JPS62177314A (en) * 1986-01-30 1987-08-04 Shimadzu Corp Magnetic floating type rotary machine
JPS63190928A (en) * 1987-02-03 1988-08-08 Koyo Seiko Co Ltd Dynamic pressure bearing
US5514924A (en) * 1992-04-30 1996-05-07 AVCON--Advanced Control Technology, Inc. Magnetic bearing providing radial and axial load support for a shaft
US5521448A (en) * 1994-08-01 1996-05-28 Mechanical Technology Incorporated Damping for passive magnetic bearings
US5804899A (en) * 1995-04-07 1998-09-08 Aerospatiale Societe Nationale Industrielle Miniature magnetic bearing with at least one active axis
JP2005322829A (en) * 2004-05-11 2005-11-17 Nittoku Eng Co Ltd Center pressing device and method for winding machine
WO2016166006A1 (en) * 2015-04-16 2016-10-20 Montres Breguet S.A. Magnetic antishock system for a timepiece arbor
JP2018508024A (en) * 2015-04-16 2018-03-22 モントレー ブレゲ・エス アー Magnetic shock resistant system for watch arbor
US10474107B2 (en) 2015-04-16 2019-11-12 Montres Breguet S.A. Magnetic anti-shock system for a timepiece arbor
CN104832538A (en) * 2015-05-25 2015-08-12 哈尔滨工业大学 Magnetically decoupled permanent magnet bias active and passive hybrid axial radial magnetic bearings
CN104832538B (en) * 2015-05-25 2017-03-22 哈尔滨工业大学 Magnetic circuit decoupled permanent magnet biased active and passive hybrid axial and radial magnetic suspension bearing

Also Published As

Publication number Publication date
JPS6327577B2 (en) 1988-06-03

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