CN1508960A - Closed permanent-magnet synchronous hollow motor - Google Patents
Closed permanent-magnet synchronous hollow motor Download PDFInfo
- Publication number
- CN1508960A CN1508960A CNA021554439A CN02155443A CN1508960A CN 1508960 A CN1508960 A CN 1508960A CN A021554439 A CNA021554439 A CN A021554439A CN 02155443 A CN02155443 A CN 02155443A CN 1508960 A CN1508960 A CN 1508960A
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- rotor
- stator winding
- motor
- shell
- case
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The motor comprises case, stator winding and rotor. Connecting flanges are set at both ends of the case in hollow cylindrical form. Stator winding with its inner surface being sealed is installed inner side of the case. Rotor is a hollow cylindrical form with two ends being opened. Upper and lower two ends of rotor through bearing seat are seated on centers of flanges at upper and lower ends of the case. Drive shaft is protruded out of a flange. Rare earth permanent magnet pole is embedded in the rotor and surface of the rotor is sealed. Thus, annular space is formed between rotor and stator for liquid to pass through. Besides advantages of large starting torque, strong overload capacity and high power factor, liquid flowing through inside motor cools motor. Moreover, spatial structure of driving mechanism can be simplified, and stress states of motive power parts are improved. Static seal in flanges stops leakage of liquid from drive shaft.
Description
Technical field
The present invention relates to a kind of permagnetic synchronous motor, particularly relate to a kind of closed permanent-magnet synchronous core motor.
Background technology
Press, therefore permagnetic synchronous motor all has in a lot of fields very and uses widely owing to have that detent torque is big, overload capacity is strong and series of advantages such as power factor height.Permagnetic synchronous motor mainly is made of stator winding and rotor, is embedded with permanent magnetism magnetic pole in the rotor, and certain magnetic gap is arranged between stator winding and the rotor.The magnetic gap of permagnetic synchronous motor of the prior art is generally all very little, and the strict liquid of forbidding enters in the stator winding and rotor in the motor, and this taboo has limited the range of application of permagnetic synchronous motor to a great extent.For example, when permagnetic synchronous motor is used to drive pipeline conveying axis stream pump or oil field oil-extracting screw pump, not only can make the structure complicated of driving arrangement, and the movable sealing between driving shaft and the band hydraulic fluid is also quite difficult.
Summary of the invention
Purpose of the present invention promptly is to provide a kind of closed permanent-magnet synchronous core motor, so that fluid can flow through from the inside of motor, thereby simplifies the driving arrangement structure under some occasion and improves the force-bearing situation of power part; Simultaneously, utilize static seal to replace the bigger movable sealing of difficulty, to stop with the leakage of hydraulic fluid along motor driving shaft.
To achieve these goals, the present invention utilizes shell, stator winding and rotor to constitute a kind of closed permanent-magnet synchronous core motor.Shell is a hollow circle tube, and it is equipped with adpting flange in two ends up and down, and stator winding is installed in the inboard of shell, and its inner surface is sealing; Rotor is the hollow cylinder of both ends open, the central of two end flanges also can forward and reversely be rotated about two ends were supported on shell respectively by bearing pedestal about it, its driving shaft stretches out outside the flange, be embedded with the rare earth permanent magnet utmost point in the rotor, its outer surface is sealing, has the annular space that can supply fluid to pass through between rotor and the stator winding.
Above-mentioned closed permanent-magnet synchronous core motor is except that possessing the advantage that general permagnetic synchronous motor detent torque is big, overload capacity is strong and power factor is high, also can pass through from motor internal, thereby the structure of the driving arrangement of some occasion is simplified greatly owing to fluid; Some power part also can pass from rotor is hollow, can further simplify the structure of driving arrangement and improve the force-bearing situation of power part; The fluid that flows through from motor internal also can play the effect of cooling motor internally.In addition, the two ends of motor can utilize the sealing flange static seal to replace original rotary dynamic seal, can fundamentally stop the phenomenon that the band hydraulic fluid is revealed along driving shaft in original motor.Be described in further detail below in conjunction with the technical characterictic of specific embodiment the closed permanent-magnet synchronous core motor of the present invention.
Description of drawings
Fig. 1 is the structural representation of the closed permanent-magnet synchronous core motor of the present invention;
Embodiment
As shown in Figure 1, the closed permanent-magnet synchronous core motor of the present invention mainly is made of shell, stator winding and rotor.Shell 1 is a hollow circle tube, and it is respectively equipped with adpting flange 2 and following adpting flange 3 in two ends up and down.Stator winding 4 is installed in the inboard of shell 1, and its inner surface utilizes injection molded layers 5 sealings.Rotor 6 is the hollow cylinder of both ends open, its up and down two ends be supported on respectively by bearing pedestal 7 and bearing pedestal 8 shell 1 two end flanges up and down central authorities and can forward and reversely rotate, its driving shaft 9 stretches out outside the flange; Be embedded with the rare earth permanent magnet utmost point 10 in the rotor 6, its outer surface utilizes injection molded layers 11 sealings, has the annular space 12 that can supply fluid to pass through between rotor 6 and the stator winding 4.
The closed permanent-magnet synchronous core motor of the present invention is except that possessing the advantage that general permagnetic synchronous motor detent torque is big, overload capacity is strong and power factor is high, fluid can pass through from motor internal, not only can play the effect of cooling motor internally, but also the driving arrangement structure of some occasion is simplified greatly; Some power part of driving arrangement even also can pass from rotor is hollow can further be simplified the structure of driving arrangement and improve the force-bearing situation of power part.In addition, the two ends of motor can utilize the sealing flange static seal to replace original rotary dynamic seal, can fundamentally stop the phenomenon that the band hydraulic fluid is revealed along driving shaft in original motor.
Claims (2)
1, a kind of closed permanent-magnet synchronous core motor is characterized in that being made of shell, stator winding and rotor; Shell is a hollow circle tube, and it is equipped with adpting flange in two ends up and down, and stator winding is installed in the inboard of shell, and its inner surface is sealing; Rotor is the hollow cylinder of both ends open, the central of two end flanges also can forward and reversely be rotated about two ends were supported on shell respectively by bearing pedestal about it, its driving shaft stretches out outside the flange, be embedded with the rare earth permanent magnet utmost point in the rotor, its outer surface is sealing, has the annular space that can supply fluid to pass through between rotor and the stator winding.
2, closed permanent-magnet synchronous core motor according to claim 1 is characterized in that the inner surface of described stator winding and rotor outer surface utilize the injection molded layers sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021554439A CN1508960A (en) | 2002-12-13 | 2002-12-13 | Closed permanent-magnet synchronous hollow motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021554439A CN1508960A (en) | 2002-12-13 | 2002-12-13 | Closed permanent-magnet synchronous hollow motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1508960A true CN1508960A (en) | 2004-06-30 |
Family
ID=34235910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021554439A Pending CN1508960A (en) | 2002-12-13 | 2002-12-13 | Closed permanent-magnet synchronous hollow motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1508960A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969242A (en) * | 2010-09-21 | 2011-02-09 | 哈尔滨工业大学 | Permanent magnet fluid treating device |
| CN102762306A (en) * | 2010-02-23 | 2012-10-31 | 奥图泰有限公司 | Flotation machine |
| CN106685116A (en) * | 2017-01-22 | 2017-05-17 | 北京理工大学 | Direct-drive motor device |
-
2002
- 2002-12-13 CN CNA021554439A patent/CN1508960A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102762306A (en) * | 2010-02-23 | 2012-10-31 | 奥图泰有限公司 | Flotation machine |
| CN102762306B (en) * | 2010-02-23 | 2015-01-28 | 奥图泰有限公司 | Flotation machine |
| US9056287B2 (en) | 2010-02-23 | 2015-06-16 | Outotec Oyj | Flotation machine |
| CN101969242A (en) * | 2010-09-21 | 2011-02-09 | 哈尔滨工业大学 | Permanent magnet fluid treating device |
| CN106685116A (en) * | 2017-01-22 | 2017-05-17 | 北京理工大学 | Direct-drive motor device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |