JPS6445032U - - Google Patents

Info

Publication number
JPS6445032U
JPS6445032U JP1987140470U JP14047087U JPS6445032U JP S6445032 U JPS6445032 U JP S6445032U JP 1987140470 U JP1987140470 U JP 1987140470U JP 14047087 U JP14047087 U JP 14047087U JP S6445032 U JPS6445032 U JP S6445032U
Authority
JP
Japan
Prior art keywords
rotating body
axial direction
stationary member
bearing device
bearing
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
JP1987140470U
Other languages
Japanese (ja)
Other versions
JP2509468Y2 (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 JP1987140470U priority Critical patent/JP2509468Y2/en
Publication of JPS6445032U publication Critical patent/JPS6445032U/ja
Application granted granted Critical
Publication of JP2509468Y2 publication Critical patent/JP2509468Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16C32/0408—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
    • F04D19/048—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps comprising magnetic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/058—Bearings magnetic; electromagnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Sliding-Contact Bearings (AREA)
  • Support Of The Bearing (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Description

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

第１図、第２図は本考案による回転体軸受装置
の一実施例を示す図であり、第１図は本考案によ
る回転体軸受装置が応用された真空ポンプの断面
図、第２図は本考案の作用を説明する永久磁石１
０，１１の拡大図である。 １……ケーシング、２……ステータ翼、３……
ロータ（回転体）、４……ロータ翼、５，１３…
…ベース、６……高周波モータ、７……支持プレ
ート、７ａ……孔、８……永久磁石固定用ブロツ
ク、８ａ……ネジ軸、９……ホルダ、１０，１１
……永久磁石、１２……スパイラルグルーブベア
リング（動圧滑り軸受）、１４……受け（動圧滑
り軸受）、１５……凹部、１６……バネ受け、１
７……コイルスプリング、１８……空間、１９…
…ナツト。 1 and 2 are diagrams showing an embodiment of the rotating body bearing device according to the present invention, FIG. 1 is a sectional view of a vacuum pump to which the rotating body bearing device according to the present invention is applied, and FIG. Permanent magnet 1 explaining the action of the present invention
It is an enlarged view of 0,11. 1...Casing, 2...Stator blade, 3...
Rotor (rotating body), 4...Rotor blades, 5, 13...
... Base, 6 ... High frequency motor, 7 ... Support plate, 7a ... Hole, 8 ... Permanent magnet fixing block, 8a ... Screw shaft, 9 ... Holder, 10, 11
... Permanent magnet, 12 ... Spiral groove bearing (hydrodynamic sliding bearing), 14 ... Reception (hydrodynamic sliding bearing), 15 ... Recess, 16 ... Spring receiver, 1
7...Coil spring, 18...Space, 19...
...Natsuto.

Claims (1)

【実用新案登録請求の範囲】 (1) 円筒状のケーシングと、このケーシング内
に縦軸周りに回転可能に収納される回転体と、こ
の回転体の上部と静止部材とのそれぞれに互いに
対向して設けられる複数の永久磁石から構成され
回転体の径方向を支持する磁気軸受と、前記回転
体の下部と静止部材との間に設けられ回転体の径
方向および軸方向をともに支持する動圧滑り軸受
と、を備えた回転体軸受装置において、前記互い
に対向して設けられる永久磁石を互いに回転体の
軸方向に相対移動可能にする位置調整手段を設け
たことを特徴とする回転体軸受装置。 (2) 前記位置調整手段としてネジ機構を用いた
ことを特徴とする実用新案登録請求の範囲第１項
記載の回転体軸受装置。[Claims for Utility Model Registration] (1) A cylindrical casing, a rotating body rotatably housed in the casing around a vertical axis, and an upper part of the rotating body and a stationary member facing each other. A magnetic bearing is provided between a lower part of the rotating body and a stationary member and supports both the radial direction and the axial direction of the rotating body. A rotating body bearing device comprising a sliding bearing, further comprising a position adjusting means that allows the permanent magnets provided facing each other to move relative to each other in the axial direction of the rotating body. . (2) The rotating body bearing device according to claim 1, wherein a screw mechanism is used as the position adjustment means.
JP1987140470U 1987-09-14 1987-09-14 Rotor bearing device Expired - Lifetime JP2509468Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987140470U JP2509468Y2 (en) 1987-09-14 1987-09-14 Rotor bearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987140470U JP2509468Y2 (en) 1987-09-14 1987-09-14 Rotor bearing device

Publications (2)

Publication Number Publication Date
JPS6445032U true JPS6445032U (en) 1989-03-17
JP2509468Y2 JP2509468Y2 (en) 1996-09-04

Family

ID=31404671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987140470U Expired - Lifetime JP2509468Y2 (en) 1987-09-14 1987-09-14 Rotor bearing device

Country Status (1)

Country Link
JP (1) JP2509468Y2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04339197A (en) * 1991-05-15 1992-11-26 Ebara Corp Magnetic bearing device
JP2010169547A (en) * 2009-01-23 2010-08-05 Seiko Instruments Inc Bearing structure and timepiece equipped with same
JP2013050110A (en) * 2003-09-18 2013-03-14 Thoratec Corp Rotary blood pump
JP2015113981A (en) * 2013-12-13 2015-06-22 プファイファー・ヴァキューム・ゲーエムベーハー Rotation system
JP2016089824A (en) * 2014-11-07 2016-05-23 プファイファー・ヴァキューム・ゲーエムベーハー Vacuum pump
EP3447299A1 (en) * 2017-08-23 2019-02-27 Pfeiffer Vacuum Gmbh Adjusting ring

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119094A (en) * 1982-12-24 1984-07-10 Hitachi Ltd Molecular turbo-pump
JPS6028630U (en) * 1983-08-03 1985-02-26 日立金属株式会社 magnetic bearing
JPS60244913A (en) * 1984-05-21 1985-12-04 Toshiba Corp Supporting device for rotating body
JPS61269115A (en) * 1985-05-24 1986-11-28 Toshiba Corp Device for supporting rotary body

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119094A (en) * 1982-12-24 1984-07-10 Hitachi Ltd Molecular turbo-pump
JPS6028630U (en) * 1983-08-03 1985-02-26 日立金属株式会社 magnetic bearing
JPS60244913A (en) * 1984-05-21 1985-12-04 Toshiba Corp Supporting device for rotating body
JPS61269115A (en) * 1985-05-24 1986-11-28 Toshiba Corp Device for supporting rotary body

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04339197A (en) * 1991-05-15 1992-11-26 Ebara Corp Magnetic bearing device
JP2013050110A (en) * 2003-09-18 2013-03-14 Thoratec Corp Rotary blood pump
JP2010169547A (en) * 2009-01-23 2010-08-05 Seiko Instruments Inc Bearing structure and timepiece equipped with same
JP2015113981A (en) * 2013-12-13 2015-06-22 プファイファー・ヴァキューム・ゲーエムベーハー Rotation system
JP2016089824A (en) * 2014-11-07 2016-05-23 プファイファー・ヴァキューム・ゲーエムベーハー Vacuum pump
EP3018373B1 (en) * 2014-11-07 2018-08-08 Pfeiffer Vacuum GmbH Vacuum pump
EP3447299A1 (en) * 2017-08-23 2019-02-27 Pfeiffer Vacuum Gmbh Adjusting ring

Also Published As

Publication number Publication date
JP2509468Y2 (en) 1996-09-04

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