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SE8008897L - RING SIZE MAGNET SYSTEM - Google Patents

RING SIZE MAGNET SYSTEM

Info

Publication number
SE8008897L
SE8008897L SE8008897A SE8008897A SE8008897L SE 8008897 L SE8008897 L SE 8008897L SE 8008897 A SE8008897 A SE 8008897A SE 8008897 A SE8008897 A SE 8008897A SE 8008897 L SE8008897 L SE 8008897L
Authority
SE
Sweden
Prior art keywords
rotor
magnet
axial
magnetic
supported
Prior art date
Application number
SE8008897A
Other languages
Swedish (sv)
Other versions
SE442660B (en
Inventor
W J T H Luitjen
Original Assignee
Ultra Centrifuge Nederland Nv
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 Ultra Centrifuge Nederland Nv filed Critical Ultra Centrifuge Nederland Nv
Publication of SE8008897L publication Critical patent/SE8008897L/en
Publication of SE442660B publication Critical patent/SE442660B/en

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
    • F16C32/0408—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

Landscapes

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

Abstract

An elongated rotor 16 supported by a thrust bearing at its bottom end, is supported at the top end by coaxial tubular magnets 11 and 15. The magnet 15 is of shorter axial length and is mounted on the rotor. The inner magnet 11, poled in the same direction, is adhered or bonded to a magnet holder 12 mounted for damped radial movement by means of resilient rods 13 attached to the rotor housing. Axial relative movement of the magnets resulting from transverse forces acting on the rotor when rotating causes changes in radial stiffness and in axial forces due in each case to the magnetic interaction. The axial force can be tensile when the rotor is stationary and progressively change to a pressure against the thrust bearing as the rotor runs up to speed. Composite magnet construction, special shapes and forms of magnetization and magnetic screening can be used to control the magnetic interactions. <IMAGE>
SE8008897A 1979-12-19 1980-12-17 MAGNETIC STORAGE DEVICE FOR A HIGH SPEED ROTOR SE442660B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7909129,A NL189929C (en) 1979-12-19 1979-12-19 RING MAGNETIC SYSTEM.

Publications (2)

Publication Number Publication Date
SE8008897L true SE8008897L (en) 1981-06-20
SE442660B SE442660B (en) 1986-01-20

Family

ID=19834342

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8008897A SE442660B (en) 1979-12-19 1980-12-17 MAGNETIC STORAGE DEVICE FOR A HIGH SPEED ROTOR

Country Status (6)

Country Link
JP (1) JPS56130903A (en)
AU (1) AU544924B2 (en)
DE (1) DE3048071A1 (en)
GB (1) GB2066380B (en)
NL (1) NL189929C (en)
SE (1) SE442660B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2138060T3 (en) * 1994-07-25 2000-01-01 Sulzer Pumpen Ag CENTRIFUGAL PUMP WITH A LIFTING DEVICE.
CN103629232A (en) * 2013-11-18 2014-03-12 钱坤喜 Permanent-magnetic de-loading radial roller bearing
CN103758869A (en) * 2014-02-12 2014-04-30 钱坤喜 Permanent magnet bearing and roller bearing combined bearing
WO2020018869A1 (en) * 2018-07-19 2020-01-23 Alcon Inc. Radially repulsive magnetic bearing for self-aligning elements of coupled platforms
CN112178058B (en) * 2020-10-30 2022-09-30 江苏理工学院 Variable-rigidity radial permanent magnet bearing

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305416A (en) * 1941-11-19 1942-12-15 Gen Electric Magnetic suspension
US2436939A (en) * 1943-10-21 1948-03-02 Hoover Co Magnetic coupling and bearing
GB655429A (en) * 1947-02-25 1951-07-18 Hermann Heidenwolf Apparatus for measuring temperature
DE1165144B (en) * 1961-01-12 1964-03-12 Siemens Ag Drive unit
DE2136371A1 (en) * 1971-07-21 1973-02-01 Braun Karl MAGNETIC STORAGE OF SHAFTS OR THE LIKE
DE2314436A1 (en) * 1973-03-23 1977-12-29 Boehringer Andreas Vibration damping system for high yield speed centrifuges - having both electromagnetic and mechanical damping components
CH582838A5 (en) * 1975-03-18 1976-12-15 Bbc Brown Boveri & Cie
FR2368638A1 (en) * 1976-10-21 1978-05-19 Anvar Magnetic centring appts. for axially rotating parts - the magnets being made of cobalt and rare earth mixts. of high magnetic stability
NL189575C (en) * 1978-01-25 1993-05-17 Ultra Centrifuge Nederland Nv ROTOR WITH SUPPORT.
JPS5536635A (en) * 1978-09-04 1980-03-14 Sumitomo Special Metals Co Ltd Magnetic bearing
JPS5833936B2 (en) * 1979-03-28 1983-07-23 株式会社日立製作所 magnetic bearing

Also Published As

Publication number Publication date
DE3048071C2 (en) 1993-01-07
JPS56130903A (en) 1981-10-14
NL189929C (en) 1993-09-01
DE3048071A1 (en) 1981-09-17
GB2066380A (en) 1981-07-08
AU544924B2 (en) 1985-06-20
SE442660B (en) 1986-01-20
NL189929B (en) 1993-04-01
AU6541380A (en) 1981-06-25
NL7909129A (en) 1981-07-16
GB2066380B (en) 1983-09-21

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