CN201393121Y - Megawatt wind power generation permanent magnet directly driven generator - Google Patents
Megawatt wind power generation permanent magnet directly driven generator Download PDFInfo
- Publication number
- CN201393121Y CN201393121Y CN200920020468U CN200920020468U CN201393121Y CN 201393121 Y CN201393121 Y CN 201393121Y CN 200920020468 U CN200920020468 U CN 200920020468U CN 200920020468 U CN200920020468 U CN 200920020468U CN 201393121 Y CN201393121 Y CN 201393121Y
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- Prior art keywords
- rotor
- bearings
- power generation
- permanent magnet
- rear end
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- Expired - Fee Related
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Abstract
The utility model discloses a megawatt wind power generation permanent magnet directly driven generator which comprises a case, a stator, a front cover, a rotor, a rotor support shaft, a stand and a rear cover; two bearings are arranged between the rotor support shaft and the rotor, and the two bearings are respectively arranged on both ends of the rotor; and the rotor support shaft and the rear cover are fixed on the stand. Both ends of the rotor are provided with the support bearings, and the load which is distributed to each bearing is one second of the load born by the prior bearing; and therefore, the bearing capability requirement for the bearings is low, so that the manufacturing and the processing difficulty of the bearings is greatly reduced, and the cost is low. In addition, the rotor support shaft and the rear cover are fixed with the stand, and the rotor support shaft and the load born by the rotor support shaft are not loaded onto the rear cover, thereby reducing the load of the rear cover and prolonging the service life thereof.
Description
Technical field
The utility model relates to a kind of wind-driven generator, particularly a kind of megawatt level wind power generation permanent magnet direct-drive generator.
Background technology
At present, megawatt level wind power generation permanent magnet direct-drive generator is divided into internal rotor and two kinds of forms of external rotor, and the complete machine closure of external rotor is bad.Flying dust can enter the generator internal influence generator life-span.From wind-driven generator to the wind wheel route via is to pass through from the generator outside.Both inconvenience was also dangerous when maintenance and installation.The rotor of internal rotor wind driven electric generator only by a bearings on the rotor supports axle, need the intensity of bearing high, bearing is made processing difficulties, cost height.The bearings axle is fixed on the front and rear cover, and rear end cap is fixed on the support again, makes rear end cap will bear casing, stator, rotor, front end housing, rotor supports axle, be fixed on epitrochanterian impeller and the weight of himself.The load that rear end cap bears is too big, and complete machine rear end cap in lifting and high wind process is yielding, causes generator failure to take place.Pass course from the wind-driven generator cabin to wind wheel is a human body by passing through outside the generating shell in addition, has to fall the hidden danger of people's tumble injury.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of load to be evenly distributed, the bearing load carrying capacity of rear end cap and support rotor is required low megawatt level wind power generation permanent magnet direct-drive generator.
In order to solve the problems of the technologies described above, the utility model comprises casing, stator, front end housing, rotor, rotor supports axle, support and rear end cap, be provided with two bearings between described rotor supports axle and the rotor, two bearings lay respectively at the two ends of rotor, and rotor supports axle and rear end cap all are fixed on the support.
For the ease of fixing of rear end cap, rotor supports axle and support, described rotor supports axle is provided with and is in the outer retaining platform of rear end cap, and rear end cap, retaining platform and support are connected in series fixing by connector II successively.
Pass through for the ease of the attendant, described rotor supports axle is the taper hollow shaft, and the big end and the support of taper hollow shaft fix.
The beneficial effects of the utility model are: the two ends of rotor of the present utility model are equipped with spring bearing, the load of sharing on each bearing is the load of being born 1/2 of a bearing in the past, therefore, bearing capacity to bearing requires little, greatly reduce the manufacturing difficulty of processing of bearing, cost is lower.And rotor supports axle and rear end cap are all fixed with support, and rotor supports axle and the load of being born thereof no longer are carried on the rear end cap, the load of the rear end cap that reduces greatly.Prolonged the useful life of rear end cap.And the rotor supports axle is designed to the taper hollow shaft, can guarantee that the rotor supports axle has enough intensity, is convenient to the attendant again and passes through, and improves security performance.
Description of drawings
Fig. 1 is the utility model structural representation;
Among the figure: 1, casing, 2, connector I, 3, stator, 4, front end housing, 5, rotor, 6, sealing ring, 7, bearing I, 8, the rotor supports axle, 9, support, 10, connector II, 11, bearing I I, 12, rear end cap.
Embodiment
A kind of specific embodiment as shown in Figure 1, it comprises casing 1, stator 3, front end housing 4, rotor 5, bearing I 7, rotor supports axle 8, support 9 and rear end cap 12, rotor supports axle 8 is the taper hollow shaft, the big end of rotor supports axle 8 has the retaining platform that turns up, rotor 5 is arranged on the rotor supports axle 8 by bearing I 7 and bearing I I 11, bearing I 7 and bearing I I 11 lay respectively at the two ends of rotor 5, rotor supports axle 8, stator 3 and rotor 5 are arranged in the casing 1, front end housing 4 and rear end cap 12 shutoff are in the front and back of casing 1 side, and the retaining platform that makes rotor supports axle 8 is attached to the outside of rear end cap 12, the front end of rotor supports axle 8 and rotor 5 reaches outside the front end housing 4, be provided with sealing ring 6 between rotor 5 and the front end housing 4, front end housing 4 and rear end cap 12 fix rear end cap 12 by connector I 2 with casing 1 respectively, the retaining platform of rotor supports axle 8 and support 9 are connected in series fixing successively by connector II 10.
Claims (3)
1. megawatt level wind power generation permanent magnet direct-drive generator, comprise casing (1), stator (3), front end housing (4), rotor (5), rotor supports axle (8), support (9) and rear end cap (12), it is characterized in that: be provided with two bearings between described rotor supports axle (8) and the rotor (5), two bearings lay respectively at the two ends of rotor (5), and rotor supports axle (8) and rear end cap (12) all are fixed on the support (9).
2. megawatt level wind power generation permanent magnet direct-drive generator according to claim 1, it is characterized in that: described rotor supports axle (8) is provided with and is in the outer retaining platform of rear end cap (12), and rear end cap (12), retaining platform and support (9) are connected in series fixing successively by connector II (10).
3. megawatt level wind power generation permanent magnet direct-drive generator according to claim 1 and 2 is characterized in that: described rotor supports axle (8) is the taper hollow shaft, and the big end of taper hollow shaft and support (9) fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920020468U CN201393121Y (en) | 2009-04-07 | 2009-04-07 | Megawatt wind power generation permanent magnet directly driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920020468U CN201393121Y (en) | 2009-04-07 | 2009-04-07 | Megawatt wind power generation permanent magnet directly driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201393121Y true CN201393121Y (en) | 2010-01-27 |
Family
ID=41599942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920020468U Expired - Fee Related CN201393121Y (en) | 2009-04-07 | 2009-04-07 | Megawatt wind power generation permanent magnet directly driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201393121Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195423A (en) * | 2011-05-20 | 2011-09-21 | 国电联合动力技术有限公司 | Double-stator permanent magnetic direct-driven generator supported by fixed axles |
| CN102457069A (en) * | 2010-10-22 | 2012-05-16 | 上海万德风力发电股份有限公司 | High protection level direct current grid-connected permanent magnet direct drive wind power system |
| CN102629793A (en) * | 2012-04-13 | 2012-08-08 | 国电联合动力技术(连云港)有限公司 | Motor applicable to megawatt type direct-driven wind turbine |
| CN106160312A (en) * | 2016-08-17 | 2016-11-23 | 中国船舶重工集团公司第七〇二研究所 | A kind of New Marine propulsion electric machine |
-
2009
- 2009-04-07 CN CN200920020468U patent/CN201393121Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457069A (en) * | 2010-10-22 | 2012-05-16 | 上海万德风力发电股份有限公司 | High protection level direct current grid-connected permanent magnet direct drive wind power system |
| CN102195423A (en) * | 2011-05-20 | 2011-09-21 | 国电联合动力技术有限公司 | Double-stator permanent magnetic direct-driven generator supported by fixed axles |
| CN102629793A (en) * | 2012-04-13 | 2012-08-08 | 国电联合动力技术(连云港)有限公司 | Motor applicable to megawatt type direct-driven wind turbine |
| CN106160312A (en) * | 2016-08-17 | 2016-11-23 | 中国船舶重工集团公司第七〇二研究所 | A kind of New Marine propulsion electric machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20140407 |