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JPS57173615A - Magnetic bearing - Google Patents

Magnetic bearing

Info

Publication number
JPS57173615A
JPS57173615A JP5940381A JP5940381A JPS57173615A JP S57173615 A JPS57173615 A JP S57173615A JP 5940381 A JP5940381 A JP 5940381A JP 5940381 A JP5940381 A JP 5940381A JP S57173615 A JPS57173615 A JP S57173615A
Authority
JP
Japan
Prior art keywords
magnetic
permanent magnet
line
magnetic flux
full
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
Application number
JP5940381A
Other languages
Japanese (ja)
Inventor
Shiro Hagiwara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5940381A priority Critical patent/JPS57173615A/en
Publication of JPS57173615A publication Critical patent/JPS57173615A/en
Pending 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
    • F16C32/0459—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
    • 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

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 attain enough durability against centrifugal force in rapid rotation, by shifting a permanent magnet to a stator. CONSTITUTION:The magnetic flux outgoing from the north pole of a permanent magnet 4a mounted on a stator 6 enters into a first annular magnetic passage 2a through the upper core of an electromagnet 3a and a gap G1 or through the lower core and a gap G2 and returns to the south pole of the permanent magnet 4a through a cylindrical magnetic circuit 2c, a second annular magnetic passage 2b and an electromagnet 3b, as shown by the full-line arrows in the drawing. The magnetic fluxes of the electromagnets 3a, 3b extend around through their cores and the annular magnetic passages 2a, 2b in their poles. In the gaps G1, G3, the magnetic flux shown by the dotted line is added to that shown by the full line. In the other gaps G2, G4, the magnetic flux shown by the dotted line is subtracted from that shown by the full line.
JP5940381A 1981-04-20 1981-04-20 Magnetic bearing Pending JPS57173615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5940381A JPS57173615A (en) 1981-04-20 1981-04-20 Magnetic bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5940381A JPS57173615A (en) 1981-04-20 1981-04-20 Magnetic bearing

Publications (1)

Publication Number Publication Date
JPS57173615A true JPS57173615A (en) 1982-10-26

Family

ID=13112272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5940381A Pending JPS57173615A (en) 1981-04-20 1981-04-20 Magnetic bearing

Country Status (1)

Country Link
JP (1) JPS57173615A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0844410A1 (en) * 1996-11-25 1998-05-27 AEROSPATIALE Société Nationale Industrielle Longitudinally and transversely active magnetic bearing
CN1293319C (en) * 2005-01-27 2007-01-03 北京航空航天大学 Low-consumption permanent-magnet offset external rotor radial magnetic bearing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5565719A (en) * 1978-11-04 1980-05-17 Teldix Gmbh Magnetic bearing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5565719A (en) * 1978-11-04 1980-05-17 Teldix Gmbh Magnetic bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0844410A1 (en) * 1996-11-25 1998-05-27 AEROSPATIALE Société Nationale Industrielle Longitudinally and transversely active magnetic bearing
FR2756335A1 (en) * 1996-11-25 1998-05-29 Aerospatiale MAGNETIC BEARING LONGITUDINALLY AND TRANSVERSELY ACTIVE
CN1293319C (en) * 2005-01-27 2007-01-03 北京航空航天大学 Low-consumption permanent-magnet offset external rotor radial magnetic bearing

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