JPH0285012U - - Google Patents
Info
- Publication number
- JPH0285012U JPH0285012U JP16558988U JP16558988U JPH0285012U JP H0285012 U JPH0285012 U JP H0285012U JP 16558988 U JP16558988 U JP 16558988U JP 16558988 U JP16558988 U JP 16558988U JP H0285012 U JPH0285012 U JP H0285012U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic bearing
- radial
- rotor
- control
- axial
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims 4
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Description
第1図はこの考案の一実施例の概略ブロツク図
である。第2図はこの考案が適用される磁気軸受
装置の断面図である。
図において、1はハウジング、2は回転軸、3
は非制御のラジアル磁気軸受、4,6,11,1
2は磁極、5は永久磁石、9はモータ、10は制
御式のスラスト磁気軸受、15は励磁巻線、16
は位置センサターゲツト、17は位置検出センサ
、20は制御回路、21,22,24,27はコ
ンパレータ、23はハイパスフイルタ、25はO
Rゲート、26はローパスフイルタを示す。
FIG. 1 is a schematic block diagram of an embodiment of this invention. FIG. 2 is a sectional view of a magnetic bearing device to which this invention is applied. In the figure, 1 is a housing, 2 is a rotating shaft, and 3 is a housing.
is an uncontrolled radial magnetic bearing, 4,6,11,1
2 is a magnetic pole, 5 is a permanent magnet, 9 is a motor, 10 is a controlled thrust magnetic bearing, 15 is an excitation winding, 16
is a position sensor target, 17 is a position detection sensor, 20 is a control circuit, 21, 22, 24, 27 are comparators, 23 is a high pass filter, 25 is O
R gate, 26 indicates a low pass filter.
Claims (1)
ステータを含んで第2の非制御なラジアル磁気軸
受の機能を有し、軸方向磁気力と釣合うように前
記制御用ステータが制御される制御式磁気軸受と
、 軸方向の位置を検出する位置検出器と、 前記軸がラジアル方向に変位を生じたとき、前
記制御用ステータと前記ロータの対向面間の〓間
を小さくする方向に、前記制御用磁気軸受が制御
されるように、少なくともその中心と周縁の高さ
が異なるような形状に形成され、前記位置検出器
に対向するように前記軸の一端に取付けられる位
置センサターゲツトとを含む1軸制御型の磁気軸
受装置の異常検出回路であつて、 前記位置検出器の出力に現われる前記ロータの
軸方向位置とラジアル方向の振動をそれぞれ判別
し、前記ラジアル方向および軸方向の振動振幅が
それぞれの方向の振動許容量を予め定める時間以
上越えたとき、異常であることを判別する異常判
別手段を備えた、磁気軸受装置の異常検出回路。[Claims for Utility Model Registration] It has the functions of an uncontrolled radial magnetic bearing and a second uncontrolled radial magnetic bearing including a rotor and a controlling stator, and has the function of a second uncontrolled radial magnetic bearing including a rotor and a controlling stator, and has the function of a second uncontrolled radial magnetic bearing, which is controlled so as to balance the axial magnetic force. a controlled magnetic bearing for controlling a stator for control; a position detector for detecting a position in an axial direction; and a position detector for detecting a position in an axial direction; In order to control the control magnetic bearing in the direction of decreasing An abnormality detection circuit for a single-axis control type magnetic bearing device including a position sensor target, which determines the axial position and radial vibration of the rotor appearing in the output of the position detector, and detects the radial direction. and an abnormality detection circuit for a magnetic bearing device, comprising an abnormality determining means for determining an abnormality when the vibration amplitude in the axial direction exceeds the permissible vibration amount in each direction for a predetermined time period or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16558988U JPH056419Y2 (en) | 1988-12-20 | 1988-12-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16558988U JPH056419Y2 (en) | 1988-12-20 | 1988-12-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0285012U true JPH0285012U (en) | 1990-07-03 |
JPH056419Y2 JPH056419Y2 (en) | 1993-02-18 |
Family
ID=31452213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16558988U Expired - Lifetime JPH056419Y2 (en) | 1988-12-20 | 1988-12-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH056419Y2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11287246A (en) * | 1998-04-03 | 1999-10-19 | Koyo Seiko Co Ltd | Control type magnetic bearing device |
JP2008169965A (en) * | 2007-01-15 | 2008-07-24 | Matsushita Electric Ind Co Ltd | Magnetic bearing device |
JP2010048420A (en) * | 1996-12-13 | 2010-03-04 | General Electric Co <Ge> | Magnetic thrust compensator |
-
1988
- 1988-12-20 JP JP16558988U patent/JPH056419Y2/ja not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010048420A (en) * | 1996-12-13 | 2010-03-04 | General Electric Co <Ge> | Magnetic thrust compensator |
JPH11287246A (en) * | 1998-04-03 | 1999-10-19 | Koyo Seiko Co Ltd | Control type magnetic bearing device |
JP2008169965A (en) * | 2007-01-15 | 2008-07-24 | Matsushita Electric Ind Co Ltd | Magnetic bearing device |
Also Published As
Publication number | Publication date |
---|---|
JPH056419Y2 (en) | 1993-02-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1406371B1 (en) | Single-phase motor | |
US5097170A (en) | Brushless d.c. electric motor | |
CA2233707A1 (en) | Integrated magnetic levitation and rotation system | |
JPH0285012U (en) | ||
JP2548475Y2 (en) | Outer rotor type brushless motor | |
JP2000046513A (en) | Rotation sensor | |
JPH0277318U (en) | ||
JPH0382359A (en) | Brushless dc motor fitted with encoder | |
JPH0753391Y2 (en) | Spindle motor | |
JPH066708Y2 (en) | DC brushless motor | |
JPH0254921U (en) | ||
JPH0254920U (en) | ||
JPH08275462A (en) | Motor with speed sensor | |
JP3268322B2 (en) | Inverter control device for magnetic bearing spindle device | |
JPH044527U (en) | ||
JPS61247288A (en) | Brushless motor | |
JPH052566U (en) | Magnetic bearing device | |
JP3803396B2 (en) | Electric motor | |
JP2657659B2 (en) | Hybrid type stepping motor with built-in magnetic sensor | |
JPS63225123A (en) | Fixing structure for speed detecting magnet | |
JPS63180723U (en) | ||
JPH01146014U (en) | ||
JPH0256914U (en) | ||
JPH02103782U (en) | ||
JPH043121U (en) |