JPS5783140A - Operating method for rotary electric machine with magnetic bearing - Google Patents
Operating method for rotary electric machine with magnetic bearingInfo
- 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
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.
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)
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 |
-
1980
- 1980-11-11 JP JP55157699A patent/JPS5783140A/en active Pending
Cited By (2)
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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