JPS5783140A - Operating method for rotary electric machine with magnetic bearing - Google Patents

Operating method for rotary electric machine with magnetic bearing

Info

Publication number
JPS5783140A
JPS5783140A JP55157699A JP15769980A JPS5783140A JP S5783140 A JPS5783140 A JP S5783140A JP 55157699 A JP55157699 A JP 55157699A JP 15769980 A JP15769980 A JP 15769980A JP S5783140 A JPS5783140 A JP S5783140A
Authority
JP
Japan
Prior art keywords
bearing
magnetic bearing
rotary electric
electric machine
mechanical
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
JP55157699A
Other languages
Japanese (ja)
Inventor
Yorihiko Takeda
Kenzo Kondo
Shuetsu Uno
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 JP55157699A priority Critical patent/JPS5783140A/en
Publication of JPS5783140A publication Critical patent/JPS5783140A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/09—Structural association with bearings with 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
    • 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
    • F16C32/0442—Active magnetic bearings with devices affected by abnormal, undesired or non-standard conditions such as shock-load, power outage, start-up or touchdown
    • 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
    • F16C39/02—Relieving load on bearings using mechanical means
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

PURPOSE:To reduce the capacity of the magnetic bearing, and to miniaturize the rotary electric machine by a method wherein the magnetic bearing and a mechanical bearing are mounted, the mechanical bearing is used when stopping and when turning the machine at low speed, and the magnetic bearing is excited and the mechanical bearing is removed when normally operating the machine. CONSTITUTION:The magnetic bearing 4 consisting of a stator 1, a rotor 2 and an exciting coil 3 is mounted to a shaft 5 while the mechanical bearing 7 such as a roller bearing is set up. The mechanical bearing 7 is detachably mounted previously by means of a bolt 10. When stopping the rotary electric machine and when turning it at low speed, the mechanical bearing 7 is operated, and the size of a gap G of the magnetic bearing 4 is held previously at value at the time of normal operation. When starting normal operation, the magnetic bearing 4 is excited while the mechanical bearing 7 is removed.
JP55157699A 1980-11-11 1980-11-11 Operating method for rotary electric machine with magnetic bearing Pending JPS5783140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55157699A JPS5783140A (en) 1980-11-11 1980-11-11 Operating method for rotary electric machine with magnetic bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55157699A JPS5783140A (en) 1980-11-11 1980-11-11 Operating method for rotary electric machine with magnetic bearing

Publications (1)

Publication Number Publication Date
JPS5783140A true JPS5783140A (en) 1982-05-24

Family

ID=15655442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55157699A Pending JPS5783140A (en) 1980-11-11 1980-11-11 Operating method for rotary electric machine with magnetic bearing

Country Status (1)

Country Link
JP (1) JPS5783140A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015120090A1 (en) * 2014-02-07 2015-08-13 Nidec Motor Corporation Rotor shaft jack
US9917492B2 (en) 2014-02-07 2018-03-13 Nidec Motor Corporation Rotor shaft jack

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015120090A1 (en) * 2014-02-07 2015-08-13 Nidec Motor Corporation Rotor shaft jack
US9917492B2 (en) 2014-02-07 2018-03-13 Nidec Motor Corporation Rotor shaft jack

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