JPS57137717A - Magnetic bearing device of rotating body - Google Patents

Magnetic bearing device of rotating body

Info

Publication number
JPS57137717A
JPS57137717A JP2150181A JP2150181A JPS57137717A JP S57137717 A JPS57137717 A JP S57137717A JP 2150181 A JP2150181 A JP 2150181A JP 2150181 A JP2150181 A JP 2150181A JP S57137717 A JPS57137717 A JP S57137717A
Authority
JP
Japan
Prior art keywords
rotating
magnetic
pair
magnetic poles
stationary
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
JP2150181A
Other languages
Japanese (ja)
Inventor
Shoichi Iikura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2150181A priority Critical patent/JPS57137717A/en
Publication of JPS57137717A publication Critical patent/JPS57137717A/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
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets

Landscapes

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

Abstract

PURPOSE:To reduce the leakage of magnetic flux and improve the rotating performance by a structure wherein a pair of rotating magnetic poles are mounted through a non-magnetic annular spacer to the rotating body. CONSTITUTION:In the captioned device, in which the pair of rotating magnetic poles 2 made of annular magnetic material with U-shaped section, is used at the side of the rotating disc 6 and the pair of stationary magnetic poles 1a composed of a permanent magnet 1 is used only at the stationary side so as to make up a closed loop magnetic circuit 3 together with the pair of rotating magnetic poles 2 in order to utilize the attractive force acting on a magnetic gap 4 between the rotating side and the stationary side as the radial centripetal force, the non-magnetic annular spacer 7 is installed between the pair of rotating magnetic poles 2 and the rotating disc 6. The distance between the pair of magnetic poles 2 and the rotating disc 6 is rendered to be variable with the configuration of the spacer 7. By changing said distance, the dispersion of rotating performance among the mass-produced devices can be reduced.
JP2150181A 1981-02-18 1981-02-18 Magnetic bearing device of rotating body Pending JPS57137717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2150181A JPS57137717A (en) 1981-02-18 1981-02-18 Magnetic bearing device of rotating body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2150181A JPS57137717A (en) 1981-02-18 1981-02-18 Magnetic bearing device of rotating body

Publications (1)

Publication Number Publication Date
JPS57137717A true JPS57137717A (en) 1982-08-25

Family

ID=12056710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2150181A Pending JPS57137717A (en) 1981-02-18 1981-02-18 Magnetic bearing device of rotating body

Country Status (1)

Country Link
JP (1) JPS57137717A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0271118U (en) * 1988-11-19 1990-05-30
WO2001031213A1 (en) * 1999-10-25 2001-05-03 Hitachi, Ltd. Rotary machine having active magnetic bearing mounted therein

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0271118U (en) * 1988-11-19 1990-05-30
WO2001031213A1 (en) * 1999-10-25 2001-05-03 Hitachi, Ltd. Rotary machine having active magnetic bearing mounted therein

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