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JPH02109014U - - Google Patents

Info

Publication number
JPH02109014U
JPH02109014U JP1989018028U JP1802889U JPH02109014U JP H02109014 U JPH02109014 U JP H02109014U JP 1989018028 U JP1989018028 U JP 1989018028U JP 1802889 U JP1802889 U JP 1802889U JP H02109014 U JPH02109014 U JP H02109014U
Authority
JP
Japan
Prior art keywords
magnetic bearing
spindle
axial
air turbine
radial
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
JP1989018028U
Other languages
Japanese (ja)
Other versions
JPH0645700Y2 (en
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 filed Critical
Priority to JP1989018028U priority Critical patent/JPH0645700Y2/en
Publication of JPH02109014U publication Critical patent/JPH02109014U/ja
Application granted granted Critical
Publication of JPH0645700Y2 publication Critical patent/JPH0645700Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • F16C37/00—Cooling of bearings
    • F16C37/005—Cooling of bearings of 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
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators

Landscapes

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

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案に係る磁気軸受スピンドルの
縦断面図、第２図は同上におけるエアタービン部
分の正面図、第３図はエアタービンの他の例を示
す縦断面図である。 １……ケーシング、２……主軸、３，４……タ
ツチダウン軸受、５，６……ラジアル磁気軸受、
７……アキシヤル磁気軸受、８，９……ラジアル
位置センサ、１０……ロータ、１１，１２……電
磁石、１３……エアタービン、１４……タービン
羽根、１５……ノズル、１６……デイフユーザー
、１７……エア入口、１９，２０，２１……エア
通路、２２，２３……エア出口。 FIG. 1 is a longitudinal cross-sectional view of a magnetic bearing spindle according to this invention, FIG. 2 is a front view of the air turbine portion of the same, and FIG. 3 is a longitudinal cross-sectional view showing another example of the air turbine. 1...Casing, 2...Main shaft, 3, 4...Touch-down bearing, 5, 6...Radial magnetic bearing,
7... Axial magnetic bearing, 8, 9... Radial position sensor, 10... Rotor, 11, 12... Electromagnet, 13... Air turbine, 14... Turbine blade, 15... Nozzle, 16... Diff User, 17... Air inlet, 19, 20, 21... Air passage, 22, 23... Air outlet.

Claims (1)

【実用新案登録請求の範囲】 (1) 主軸を、二つのラジアル磁気軸受と、両ラ
ジアル磁気軸受間に位置するアキシヤル磁気軸受
とで非接触に支持した磁気軸受スピンドルにおい
て、主軸の駆動のためのエアタービンをアキシヤ
ル磁気軸受に設けたことを特徴とする磁気軸受ス
ピンドル。 (2) エアタービンが、アキシヤル磁気軸受のロ
ータ外周にタービン羽根を形成し、制御用電磁石
の一方にノズルと他方にデイフユーザーを設けて
構成されている請求項(1)に記載の磁気軸受スピ
ンドル。 (3) アキシヤル磁気軸受のエアタービンに供給
するエアがラジアル磁気軸受の冷却を兼ねている
請求項(1)に記載の磁気軸受スピンドル。[Claims for Utility Model Registration] (1) A magnetic bearing spindle in which the main shaft is supported in a non-contact manner by two radial magnetic bearings and an axial magnetic bearing located between both radial magnetic bearings, for driving the main shaft. A magnetic bearing spindle characterized by having an air turbine installed in an axial magnetic bearing. (2) The magnetic bearing according to claim (1), wherein the air turbine is configured by forming turbine blades on the outer periphery of the rotor of the axial magnetic bearing, and providing a nozzle on one side of the control electromagnet and a differential user on the other side. spindle. (3) The magnetic bearing spindle according to claim 1, wherein the air supplied to the air turbine of the axial magnetic bearing also serves to cool the radial magnetic bearing.
JP1989018028U 1989-02-17 1989-02-17 Magnetic bearing spindle Expired - Fee Related JPH0645700Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989018028U JPH0645700Y2 (en) 1989-02-17 1989-02-17 Magnetic bearing spindle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989018028U JPH0645700Y2 (en) 1989-02-17 1989-02-17 Magnetic bearing spindle

Publications (2)

Publication Number Publication Date
JPH02109014U true JPH02109014U (en) 1990-08-30
JPH0645700Y2 JPH0645700Y2 (en) 1994-11-24

Family

ID=31232307

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989018028U Expired - Fee Related JPH0645700Y2 (en) 1989-02-17 1989-02-17 Magnetic bearing spindle

Country Status (1)

Country Link
JP (1) JPH0645700Y2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0861366A (en) * 1994-08-25 1996-03-08 Koyo Seiko Co Ltd Magnetic bearing device
EP1717468A1 (en) * 2003-07-04 2006-11-02 Mitsubishi Denki Kabushiki Kaisha Magnetic bearing device
WO2008146453A1 (en) * 2007-05-18 2008-12-04 Ntn Corporation Motor-integrated magnetic bearing
EP2808571A1 (en) * 2013-05-27 2014-12-03 Nuovo Pignone S.r.l. Electro-magnetic bearing assembly with inner ventilation to cool the bearing
JP2016118226A (en) * 2014-12-19 2016-06-30 株式会社Ihi Magnetic bearing and rotary machine
JP2017040357A (en) * 2015-08-17 2017-02-23 財團法人工業技術研究院Ｉｎｄｕｓｔｒｉａｌ Ｔｅｃｈｎｏｌｏｇｙ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ Magnetic levitation rotor mechanism

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS485201U (en) * 1971-06-03 1973-01-22
JPS4877603U (en) * 1971-12-24 1973-09-25

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS485201U (en) * 1971-06-03 1973-01-22
JPS4877603U (en) * 1971-12-24 1973-09-25

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0861366A (en) * 1994-08-25 1996-03-08 Koyo Seiko Co Ltd Magnetic bearing device
EP1717468A1 (en) * 2003-07-04 2006-11-02 Mitsubishi Denki Kabushiki Kaisha Magnetic bearing device
EP1717468A4 (en) * 2003-07-04 2009-12-16 Mitsubishi Electric Corp Magnetic bearing device
WO2008146453A1 (en) * 2007-05-18 2008-12-04 Ntn Corporation Motor-integrated magnetic bearing
EP2808571A1 (en) * 2013-05-27 2014-12-03 Nuovo Pignone S.r.l. Electro-magnetic bearing assembly with inner ventilation to cool the bearing
WO2014191311A1 (en) * 2013-05-27 2014-12-04 Nuovo Pignone Srl Electro-magnetic bearing assembly with inner ventilation to cool the bearing
CN105378314A (en) * 2013-05-27 2016-03-02 诺沃皮尼奥内股份有限公司 Electro-magnetic bearing assembly with inner ventilation to cool the bearing
AU2014273308B2 (en) * 2013-05-27 2017-08-31 Nuovo Pignone Tecnologie - S.R.L. Electro-magnetic bearing assembly with inner ventilation to cool the bearing
US10119572B2 (en) 2013-05-27 2018-11-06 Nuovo Pignone Srl Electro-magnetic bearing assembly with inner ventilation to cool the bearing
JP2016118226A (en) * 2014-12-19 2016-06-30 株式会社Ihi Magnetic bearing and rotary machine
JP2017040357A (en) * 2015-08-17 2017-02-23 財團法人工業技術研究院Ｉｎｄｕｓｔｒｉａｌ Ｔｅｃｈｎｏｌｏｇｙ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ Magnetic levitation rotor mechanism

Also Published As

Publication number Publication date
JPH0645700Y2 (en) 1994-11-24

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees