CN201928098U - Rotor structure of large direct-drive wind power double-generator - Google Patents
Rotor structure of large direct-drive wind power double-generator Download PDFInfo
- Publication number
- CN201928098U CN201928098U CN2010206494657U CN201020649465U CN201928098U CN 201928098 U CN201928098 U CN 201928098U CN 2010206494657 U CN2010206494657 U CN 2010206494657U CN 201020649465 U CN201020649465 U CN 201020649465U CN 201928098 U CN201928098 U CN 201928098U
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- rotor
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- wind power
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a rotor structure of large direct-drive wind power double-generator. The rotor structure comprises a rotor rack and a permanent magnet, wherein the rotor rack is cylindrical, the permanent magnet is fixed on the inner side of the cylindrical surface of the rotor rack, an external flange for mounting a flange is arranged at the outer end part of the cylindrical surface, and an internal flange equipped with a hub is arranged at the inner end part of the cylindrical surface of the rotor rack. In the utility model, the wind energy of the transmission system of the large direct-drive wind generator is transmitted to the hub through blades, and then transmitted to a wind generating set through the hub, compared with a conventional direct-drive wind power generation, the novel rotor structure has reduced transmission links, and less energy loss and components in the transmission process. As the rotor is mounted in the hub, the space is reasonably utilized, the structure is simplified, the size of the generator is reduced, both the wind power generating efficiency and the reliability of the system are improved, and easiness in manufacturing and mounting is realized.
Description
Technical field
The utility model relates to wind power generation field, and especially marine Large-scale Wind Turbines is refered in particular to the rotor structure that is used for large-scale directly-driven wind double-generator.
Background technology
At present, wind generating technology just develops towards large-scale permanent magnet direct-drive direction.Mainstream technology 2MW, 2.5MW, 3MW, 5MW also occur, even have proposed the technical scheme of 10MW.But, because wind speed round lower (about 18rpm) in the permanent magnet direct-drive scheme, to bring up to very big capacity to power very air gaps diameter must be arranged, such as there being the people to calculate, when power was brought up to 10MW, air-gap diameter can reach more than 10 meters, thus, make the generator volume big especially, give and make, install, move and safeguard and bring very big difficulty.
And the drive system of existing wind-driven generator is that blade acquisition wind energy is passed to wheel hub, and wheel hub is passed to axle again, and axle is passed to the rotor of generator again, and the rotation that axle also bears wheel hub simultaneously in the weight generation moment of flexure of bearing wheel hub and blade produces moment of torsion.Multistage transmission meeting is like this lost the part wind energy and is reduced generating efficiency, increases the reliability of wind-driven generator complexity and reduction system simultaneously.
In order to satisfy market to extra heavy wind power generation demand, the inventor has researched and developed a kind of large-scale directly-driven wind double-generator, according to existing technology all devices of wind-driven generator are all become big, to satisfy the increase of power, and developed a kind of rotor structure of large-scale directly-driven wind double-generator specially, this case produces thus.
The utility model content
At large-scale direct wind-driven generator, the purpose of this utility model is to provide a kind of rotor structure of large-scale directly-driven wind double-generator, and when satisfying increase power, simplified structure is saved the space, conveniently makes and installs.
To achieve these goals, the technical solution of the utility model is:
A kind of rotor structure of large-scale directly-driven wind double-generator, described rotor is made up of rotor rack and permanent magnet, being shaped as of rotor rack is cylindrical, the inboard fixed permanent magnet in the face of cylinder of rotor rack, and the outer end on the face of cylinder has the outward flange of mounting flange, inner end that the inner flange of installing with wheel hub is arranged.
The inner end thickening of described rotor rack, and inner flange is formed directly on the end face of thickening.
After adopting such scheme, the utility model is by the outward flange mounting flange, so that the corresponding supporting formation wind turbine generator of stator, stator is mounted on the main shaft, the utility model is installed on the wheel hub by inner flange, wheel hub is mounted on the moving axis, it is that wind energy is passed to wheel hub by blade that the utility model makes the drive system of large-scale direct wind-driven generator, wheel hub is passed to wind turbine generator again, than the transmission link of existing direct-drive wind power generation minimizing, therefore, reduce the loss of energy, also reduce simultaneously some parts in the transmission process, rotor is installed in the wheel hub, rationally utilize the space, simplify the structure, reduce the generator volume, improve the generating efficiency of wind power generation and the reliability of system, the convenient manufacturing and installation.
Description of drawings
Fig. 1 is the cutaway view (saving pylon) that the utility model applies to large-scale directly-driven wind double-generator;
Fig. 2 is that the utility model and stator are installed the cut-away view of forming wind turbine generator;
Fig. 3 is the installation process figure that the utility model applies to large-scale directly-driven wind double-generator;
Fig. 4 is the cutaway view of rotor rack.
Label declaration
Pylon 1 base 2
Left side generating set 3 right generating sets 4
Left side flange 62 right flanges 63
Left side flange 82 right flanges 83
Bearing 9 bolts 10.
Embodiment
As shown in Figures 1 to 4, the utility model has disclosed a kind of rotor 11 structures of large-scale directly-driven wind double-generator, form by rotor rack 111 and permanent magnet 112, being shaped as of rotor rack 111 is cylindrical, the inboard fixed permanent magnet 112 in the face of cylinder of rotor rack 111, the outer end on the face of cylinder has outward flange 113, the inner end of mounting flange 1 that the inner flange of installing with wheel hub 6 114 is arranged, the inner end thickening of figure rotor frame 111, inner flange 114 is direct by on the end face that is formed on thickening, further simplified structure.
The utility model is applicable to large-scale directly-driven wind double-generator system, and this system comprises pylon 1, base 2, left generating set 3, right generating set 4, blade 5, wheel hub 6, moving axis 7 and main shaft 8.As shown in Figure 2, rotor 11 of the present utility model is mounted to left generating set 3 or right generating set 4 with stator 12 by ring flange 13, wherein, the outward flange 113 of rotor 11 and the outward flange 124 of stator 12 are installed on the ring flange 13 respectively earlier, so that corresponding rotor 11 and stator 12 supporting formation wind turbine generator 3 or 4, and after the whole system installation, the bolt between outward flange 124 and the ring flange 13 10 is removed, generator can be worked.
As shown in Figure 3, earlier moving axis 7 is installed on the main shaft 8 by bearing 9 when whole system is installed, constitutes the main shaft external member; And base 2 is installed on the pylon 1.Again the base flange 81 of main shaft external member by main shaft 8 is installed on the base 2.Then, successively the spindle flange 125 of left generating set 3 by its stator frame 121 is installed on the left flange 82 of main shaft 8; The wheel hub 6 that blade 5 has been installed is installed on the moving axis 7 by its moving axis flange 65, and left generating set 3 is installed on the left flange 62 of wheel hub 6 by the inner flange 114 of its rotor rack 111.At last, the spindle flange 125 of right generating set 4 by its stator frame 121 is installed on the right flange 83 of main shaft 8, and installs on the right flange 63 of wheel hub 6 by the inner flange 114 of its rotor rack 111.Remove the outward flange 124 of left generating set 3 stator frames 121 and the connecting bolt 10 between the ring flange 13, and the outward flange 124 of right generating set 4 stator frames 121 and the connecting bolt 10 between the ring flange 13, the system that promptly finishes installs.
It below only is preferred embodiment of the present utility model; be not qualification, in the ken that those of ordinary skills possessed, based on the key points in design of this case to its practical range; the many variations that can make its concrete example, but all should fall in the protection range of this case.
Claims (2)
1. the rotor structure of a large-scale directly-driven wind double-generator, it is characterized in that: form by rotor rack and permanent magnet, being shaped as of rotor rack is cylindrical, the inboard fixed permanent magnet in the face of cylinder of rotor rack, the outer end on the face of cylinder has the outward flange of mounting flange, inner end that the inner flange of installing with wheel hub is arranged.
2. the rotor structure of a kind of large-scale directly-driven wind double-generator as claimed in claim 1 is characterized in that: the inner end thickening of described rotor rack, and inner flange is formed directly on the end face of thickening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206494657U CN201928098U (en) | 2010-12-09 | 2010-12-09 | Rotor structure of large direct-drive wind power double-generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206494657U CN201928098U (en) | 2010-12-09 | 2010-12-09 | Rotor structure of large direct-drive wind power double-generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928098U true CN201928098U (en) | 2011-08-10 |
Family
ID=44431933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206494657U Expired - Fee Related CN201928098U (en) | 2010-12-09 | 2010-12-09 | Rotor structure of large direct-drive wind power double-generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201928098U (en) |
-
2010
- 2010-12-09 CN CN2010206494657U patent/CN201928098U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |