JPS57171118A - Magnetic bearing - Google Patents

Magnetic bearing

Info

Publication number
JPS57171118A
JPS57171118A JP5627281A JP5627281A JPS57171118A JP S57171118 A JPS57171118 A JP S57171118A JP 5627281 A JP5627281 A JP 5627281A JP 5627281 A JP5627281 A JP 5627281A JP S57171118 A JPS57171118 A JP S57171118A
Authority
JP
Japan
Prior art keywords
magnets
shaft
cylinder
poles
axial direction
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
JP5627281A
Other languages
Japanese (ja)
Inventor
Koji Kamisaka
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
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 Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP5627281A priority Critical patent/JPS57171118A/en
Publication of JPS57171118A publication Critical patent/JPS57171118A/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
    • 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
    • F16C32/0434—Passive magnetic bearings with permanent magnets on both parts repelling each other for parts moving linearly

Abstract

PURPOSE:To improve the axial moving property of an unsecured member, by providing a plurality of magnets at circumferential intervals on the inside of a cylinder and on the outside of a central shaft so that the same poles of the magnets are opposed to each other and by securing one of the cylinder and the shaft and enabling the other to move in the axial direction. CONSTITUTION:Magnets 211-214 are mounted at circumferential intervals on the four internal sides of a cylinder 20 so that the pole faces of the magnets extend in parallel with the internal sides and are oriented inwards and the poles of the adjacent magnets face each other. Other magnets 231-234 are mounted on the external sides of a shaft 22 so that the direction of line of magnetic force between the poles of each magnet is perpendicular to the side of the shaft and the magnets repulse the formers 211-214. One of the cylinder 20 and the shaft 22 is secured so that the other's rotation is hindered by the repulsive force between the magnets 21, 23 and the unsecured member is moved in the axial direction. The movement can smoothly be casued with a large stroke under no mechanical friction.
JP5627281A 1981-04-16 1981-04-16 Magnetic bearing Pending JPS57171118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5627281A JPS57171118A (en) 1981-04-16 1981-04-16 Magnetic bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5627281A JPS57171118A (en) 1981-04-16 1981-04-16 Magnetic bearing

Publications (1)

Publication Number Publication Date
JPS57171118A true JPS57171118A (en) 1982-10-21

Family

ID=13022448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5627281A Pending JPS57171118A (en) 1981-04-16 1981-04-16 Magnetic bearing

Country Status (1)

Country Link
JP (1) JPS57171118A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992016762A1 (en) * 1991-03-15 1992-10-01 Koyo Seiko Co., Ltd. Superconductive bearing device
WO2006116460A3 (en) * 2005-04-28 2006-12-14 Honeywell Int Inc Magnetic bearings for damping and/or isolation systems
JP2017070018A (en) * 2015-09-28 2017-04-06 日本電産コパル株式会社 Linear vibration motor
CN107327482A (en) * 2016-04-29 2017-11-07 上海微电子装备（集团）股份有限公司 Magnetically suspended guide rail and its air gap thickness control method
WO2023148076A1 (en) * 2022-02-04 2023-08-10 Precitec Gmbh & Co. Kg Laser machining head with hermetically encapsulated movable optical unit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992016762A1 (en) * 1991-03-15 1992-10-01 Koyo Seiko Co., Ltd. Superconductive bearing device
US5801469A (en) * 1991-03-15 1998-09-01 Koyo Seiko Co., Ltd Superconducting bearing device
WO2006116460A3 (en) * 2005-04-28 2006-12-14 Honeywell Int Inc Magnetic bearings for damping and/or isolation systems
JP2017070018A (en) * 2015-09-28 2017-04-06 日本電産コパル株式会社 Linear vibration motor
WO2017057315A1 (en) * 2015-09-28 2017-04-06 日本電産コパル株式会社 Linear vibration motor
CN108025332A (en) * 2015-09-28 2018-05-11 日本电产科宝株式会社 Linear vibration motor
US10560010B2 (en) 2015-09-28 2020-02-11 Nidec Copal Corporation Linear vibration motor
CN107327482A (en) * 2016-04-29 2017-11-07 上海微电子装备（集团）股份有限公司 Magnetically suspended guide rail and its air gap thickness control method
CN107327482B (en) * 2016-04-29 2019-04-30 上海微电子装备（集团）股份有限公司 Magnetically suspended guide rail and its air gap thickness control method
WO2023148076A1 (en) * 2022-02-04 2023-08-10 Precitec Gmbh & Co. Kg Laser machining head with hermetically encapsulated movable optical unit

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