JPS56153117A - Magnetic bearing - Google Patents

Magnetic bearing

Info

Publication number
JPS56153117A
JPS56153117A JP5630980A JP5630980A JPS56153117A JP S56153117 A JPS56153117 A JP S56153117A JP 5630980 A JP5630980 A JP 5630980A JP 5630980 A JP5630980 A JP 5630980A JP S56153117 A JPS56153117 A JP S56153117A
Authority
JP
Japan
Prior art keywords
magnetic
york
void
magnetic bearing
magnet
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
JP5630980A
Other languages
Japanese (ja)
Other versions
JPS5839249B2 (en
Inventor
Tsutomu Murakami
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.)
National Aerospace Laboratory of Japan
Original Assignee
National Aerospace Laboratory of Japan
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 National Aerospace Laboratory of Japan filed Critical National Aerospace Laboratory of Japan
Priority to JP5630980A priority Critical patent/JPS5839249B2/en
Publication of JPS56153117A publication Critical patent/JPS56153117A/en
Publication of JPS5839249B2 publication Critical patent/JPS5839249B2/en
Expired 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
    • F16C32/044—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 obtain a magnetic bearing with excellent controllability in spite of reduced number of parts by a method wherein the number of void magnetic paths of a magnetic bearing is made to be three including exclusive paths for permanent magnets and one electromagnetic coil is employed.
CONSTITUTION: When the magnetic bearing 10 is applied to a rotary machine, the stators 12 of the magnetic bearings 10 are arranged respectively at both ends of a fixed shaft 11 and the rotor part 13 is arranged rotatably corresponding to the stator part 12. The rotor parts 13 are connected with each other through a connecting rod 14 made up of nonmagnetic substance. The stator part 12 is made up of an electromagnetic york 16 which is void in its inner part and an electromagnetic coil 17 is wound in its cavity and a cylindrical permanent magnet 18 is installed on the upper end surface. On the other hand, the rotor part 13 is made up of a york 19 of a circular magnetic body, while the 1st void magnetic path 20 is formed between an end part facing the magnet 18 and the magnet 18, and the 2nd, the 3rd void magnetic paths 22, 23 are formed between the other end of a T-shaped section of the york 19 and the opening end of the york 16.
COPYRIGHT: (C)1981,JPO&Japio
JP5630980A 1980-04-30 1980-04-30 magnetic bearing Expired JPS5839249B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5630980A JPS5839249B2 (en) 1980-04-30 1980-04-30 magnetic bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5630980A JPS5839249B2 (en) 1980-04-30 1980-04-30 magnetic bearing

Publications (2)

Publication Number Publication Date
JPS56153117A true JPS56153117A (en) 1981-11-27
JPS5839249B2 JPS5839249B2 (en) 1983-08-29

Family

ID=13023538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5630980A Expired JPS5839249B2 (en) 1980-04-30 1980-04-30 magnetic bearing

Country Status (1)

Country Link
JP (1) JPS5839249B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5465681A (en) * 1994-03-02 1995-11-14 Eastman Kodak Company Coating roll drive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5465681A (en) * 1994-03-02 1995-11-14 Eastman Kodak Company Coating roll drive

Also Published As

Publication number Publication date
JPS5839249B2 (en) 1983-08-29

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