CN210977758U - Permanent-magnet direct-drive wind driven generator - Google Patents
Permanent-magnet direct-drive wind driven generator Download PDFInfo
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- CN210977758U CN210977758U CN201921536811.8U CN201921536811U CN210977758U CN 210977758 U CN210977758 U CN 210977758U CN 201921536811 U CN201921536811 U CN 201921536811U CN 210977758 U CN210977758 U CN 210977758U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a permanent magnetism directly drives aerogenerator, permanent magnetism directly drives aerogenerator includes the rotor, the stator, pivot and dead axle, be equipped with the pivot flange in the pivot, be provided with the stator flange on the stator, be equipped with dead axle flange and preceding frame flange on the dead axle, the terminal surface of the preceding frame flange of orientation of stator flange and dead axle flange is connected and the diameter of dead axle flange and stator flange all is greater than the diameter of preceding frame flange, or the terminal surface of the pivot flange of orientation of stator flange and dead axle flange is connected and the diameter of dead axle flange and stator flange all is greater than the diameter of pivot flange. Through the structure that changes the dead axle flange for front frame flange or pivot flange can not interfere the stator when the assembly, in order to realize the optimization to the assembly order, realize earlier after dead axle and pivot equipment, reassembling rotor and stator reduces the occupation time to large crane, in order to do benefit to large-scale permanent magnetism and directly drive aerogenerator's batched assembly.
Description
Technical Field
The utility model relates to a wind power generation field, in particular to permanent magnetism directly drives aerogenerator.
Background
The direct-drive permanent magnet wind driven generator adopts a permanent magnet generator, and a wind wheel is directly coupled with a motor, so that a heavy speed-up gear box is omitted, and the direct-drive permanent magnet wind driven generator has the advantages of high efficiency, low noise, long service life, reduced unit volume, reduced operation and maintenance cost and the like.
The direct-drive wind driven generator mainly comprises a stator and a rotor, wherein the stator is connected with a fixed shaft through a flange, the rotor is connected with a rotating shaft through a flange, and the fixed shaft is connected with a rotating shaft bearing so as to realize the relative rotation of the rotor and the stator. In the prior art, due to the structure of the fixed shaft and the rotating shaft, during assembly, the stator and the fixed shaft are connected, the rotor and the rotating shaft are connected, and then the fixed shaft and the rotating shaft are assembled, namely the fixed shaft and the rotating shaft are assembled together with the rotor and the stator. Along with the direct-drive wind driven generator is larger and larger in size and heavier, the hoisting requirement is higher and higher, a large crane is occupied according to the assembling sequence, and the mass production is not facilitated.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that the structure of pivot and dead axle in order to overcome among the prior art leads to when assembly dead axle and pivot, need assemble together with rotor and stator, occupies large crane, is unfavorable for the defect of batch production, provides a permanent magnetism and directly drives aerogenerator.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
a permanent-magnet direct-drive wind-driven generator comprises a rotor, a stator, a rotating shaft and a fixed shaft, a rotating shaft flange is arranged on the rotating shaft, a stator flange is arranged on the stator, a fixed shaft flange and a front frame flange are arranged on the fixed shaft, the front frame flange is positioned at one end of the dead axle, the rotating axle is sleeved at the other end of the dead axle, the dead axle flange is positioned between the front frame flange and the rotating shaft flange in the axial direction of the dead axle, the rotor is connected with the rotating shaft flange, wherein the end surfaces of the stator flange and the dead axle flange facing the front frame flange are connected and the diameters of the dead axle flange and the stator flange are both larger than the diameter of the front frame flange, or the stator flange and the dead axle flange are connected towards the end face of the rotating shaft flange, and the diameters of the dead axle flange and the stator flange are larger than that of the rotating shaft flange.
In this scheme, through the structure that changes dead axle flange and preceding frame flange, perhaps, change the structure of dead axle flange and pivot flange for preceding frame flange or pivot flange can not interfere the stator when the assembly, thereby realize the optimization to the assembly order, realize earlier with dead axle and pivot after the equipment, last reassembling rotor and stator reduce the occupation time to large-scale assembly hoist, in order to do benefit to large-scale permanent magnetism and directly drive aerogenerator's batched installation.
Preferably, a bearing is connected between the rotating shaft and the fixed shaft.
In the scheme, a bearing is connected between the rotating shaft and the fixed shaft to realize the rotation of the rotating shaft relative to the fixed shaft.
Preferably, the bearing comprises a first bearing proximate the stator flange and a second bearing distal from the stator flange.
In this scheme, all set up the bearing at the both ends of pivot, do benefit to and improve the pivot for the stationary shaft pivoted stationarity, that is to say rotor for stationary shaft and stator pivoted stationarity.
Preferably, the rotor is bolted to the rotating shaft flange, and the stator flange is bolted to the fixed shaft flange.
In this scheme, bolted connection convenient to detach, easy maintenance.
Preferably, a rotor flange is arranged on the rotor, a plurality of first through holes are formed in the rotor flange, a plurality of first threaded holes are formed in the rotating shaft flange, and the first through holes correspond to the first threaded holes one to one.
Preferably, a plurality of second through holes are formed in the stator flange, a plurality of second threaded holes are formed in the dead axle flange, and the second through holes correspond to the second threaded holes one to one.
In this scheme, set up the through-hole on stator flange and rotor flange, the bolt of being convenient for passes, set up the fixed of screw hole bolt of being convenient for on dead axle flange and pivot flange.
Preferably, the rotor includes a rotor body and a rotor cover plate, the rotor cover plate is connected to the rotor body, the rotor cover plate is spaced from the stator on a side close to the front frame flange, the rotor body is connected to the rotating shaft flange, and the rotor body and the rotor cover plate rotate around the stator and the fixed shaft simultaneously.
In this scheme, the rotor is provided in two parts, so as to facilitate the assembly of the rotor and the stator, in order to avoid the problem that the rotor and the stator cannot be assembled due to interference when the rotor and the stator are assembled.
Preferably, the rotor cover plate is circular, and the rotor cover plate is connected with the rotor body through bolts.
In this scheme, the rotor apron sets up to the ring form, and the rotor apron of being convenient for on the one hand is connected with rotor body, and on the other hand is favorable to improving the rotor apron along with the stationarity of pivot when rotating, and the processing of also being convenient for moreover. The rotor cover plate is connected with the rotor body through bolts, and installation and disassembly are facilitated.
The assembling method of the permanent magnet direct-drive wind driven generator comprises the following steps:
s1: connecting the rotating shaft with the fixed shaft through a bearing;
s2: if the diameters of the fixed shaft flange and the stator flange are both larger than the diameter of the front frame flange, the step S2.1 is performed, if the diameters of the fixed shaft flange and the stator flange are both larger than the diameter of the rotating shaft flange, the step S2.2 is performed,
s2.1, integrally hoisting the connected rotating shaft and the fixed shaft to be sleeved into the rotor body, connecting the rotor flange with the rotating shaft flange, and then sleeving the stator on the fixed shaft from one side of the front rack flange and connecting the stator with the fixed shaft flange;
s2.2: hoisting the stator, sleeving the connected whole of the rotating shaft and the fixed shaft from one end of the rotating shaft, connecting the stator with the fixed shaft flange, hoisting the rotor body and sleeving the rotor body into the rotating shaft and connecting the rotor body with the rotating shaft flange,
after completion of step S2.1 or step S2.2,
s3: connecting the rotor cover plate with the rotor body.
In this scheme, assemble into a little assembly body with dead axle and pivot with small crane earlier, then according to the structural feature of dead axle flange, accomplish the equipment of rotor and stator, whole process greatly reduced large crane's use amount. The number of the small-tonnage cranes in the production workshop is far more than that of the large-tonnage cranes, so that the assembly sequence can be used for assembling a plurality of generators simultaneously, and the mass production is facilitated.
On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.
The utility model discloses an actively advance the effect and lie in: the utility model discloses a structure to permanent magnetism direct drive aerogenerator's dead axle flange improves to make when the assembly, can assemble into a little assembly body with pivot and dead axle earlier, then install stator and rotor body according to the structural feature of dead axle flange again. The assembly sequence greatly reduces the use amount of the large crane, is beneficial to simultaneously carrying out the assembly of a plurality of generators and is beneficial to batch production.
Drawings
Fig. 1 is a schematic structural diagram of a permanent magnet direct-drive wind power generator according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a dead axle in a permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of the permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention after the first bearing is assembled into the fixed shaft.
Fig. 4 is a schematic structural diagram of the permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention after the first bearing is sleeved in the rotating shaft.
Fig. 5 is a schematic structural diagram of the permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention after the second bearing is installed between the rotating shaft and the dead axle.
Fig. 6 is a schematic structural diagram of the permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention after the rotor body is connected to the rotating shaft flange.
Fig. 7 is a schematic structural diagram of the permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention after the stator is connected to the fixed shaft flange.
Fig. 8 is a schematic structural diagram of the permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention after the rotor cover plate is connected to the rotor body.
Fig. 9 is a schematic view of an assembly process in a permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention.
Fig. 10 is a schematic structural diagram of a permanent magnet direct-drive wind power generator according to embodiment 2 of the present invention.
Fig. 11 is a schematic structural diagram of the permanent magnet direct-drive wind turbine according to embodiment 2 of the present invention after the stator is connected to the fixed shaft flange.
Fig. 12 is a schematic structural diagram of the permanent magnet direct-drive wind turbine according to embodiment 2 of the present invention after the rotor body is connected to the rotating shaft flange.
Fig. 13 is a schematic structural diagram of the permanent magnet direct-drive wind turbine according to embodiment 2 of the present invention after the rotor cover plate is connected to the rotor body.
Fig. 14 is a schematic view of an assembly process in a permanent magnet direct-drive wind turbine according to embodiment 2 of the present invention.
Description of reference numerals:
S1-S3
Detailed Description
The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.
Example 1
As shown in fig. 1, the embodiment provides a permanent-magnet direct-drive wind turbine generator, which includes a rotor 30, a stator 40, a rotating shaft 20 and a fixed shaft 10, wherein a rotating shaft flange 201 is disposed on the rotating shaft 20, a stator flange 401 is disposed on the stator 40, a fixed shaft flange 101 and a front frame flange 102 are disposed on the fixed shaft 10, the front frame flange 102 is located at one end of the fixed shaft 10, the rotating shaft 20 is sleeved at the other end of the fixed shaft 10, the fixed shaft flange 101 is located between the front frame flange 102 and the rotating shaft flange 201 in the axial direction of the fixed shaft 10, the rotor 30 is connected with the rotating shaft flange 201, end faces of the stator flange 401 and the fixed shaft flange 101, which face the front frame flange 102, are connected, and diameters of the fixed shaft flange 101 and the stator flange 401 are greater.
By changing the structures of the dead axle flange 101 and the front frame flange 102, the front frame flange 102 does not interfere with the stator flange 401 to be sleeved on the dead axle 10 during assembly, so that the assembly sequence is optimized, the rotor 30 and the stator 40 are assembled after the dead axle 10 and the rotating shaft 20 are assembled, the occupied time of a large-scale assembly crane is reduced, and the batch assembly of the large-scale permanent-magnet direct-drive wind driven generator is facilitated.
A bearing is connected between the rotating shaft 20 and the fixed shaft 10. The bearings comprise a first bearing 50 and a second bearing 60, the first bearing 50 being adjacent the stator flange 401 and the second bearing 60 being remote from the stator flange 401. Wherein a bearing is connected between the rotating shaft 20 and the fixed shaft 10 to enable the rotating shaft 20 to rotate relative to the fixed shaft 10. The bearings are disposed at both ends of the rotating shaft 20, which is beneficial to improve the rotating smoothness of the rotating shaft 20 relative to the fixed shaft 10, that is, the rotating smoothness of the rotor 30 relative to the fixed shaft 10 and the stator 40.
The rotor 30 is bolted to the spindle flange 201, and the stator flange 401 is bolted to the fixed-axis flange 101. The rotor 30 is provided with a rotor flange 303, the rotor flange 303 is provided with a plurality of first through holes, the rotating shaft flange 201 is provided with a plurality of first threaded holes, and the first through holes correspond to the first threaded holes one to one. The stator flange 401 is provided with a plurality of second through holes, the fixed shaft flange 101 is provided with a plurality of second threaded holes, and the second through holes correspond to the second threaded holes one to one. Wherein, bolted connection is convenient for dismantle, easy maintenance. Through holes are formed in the stator flange 401 and the rotor flange 303 to facilitate bolts to pass through, and threaded holes are formed in the fixed shaft flange 101 and the rotating shaft flange 201 to facilitate the fixation of the bolts.
The rotor 30 includes a rotor body 301 and a rotor cover plate 302, the rotor cover plate 302 is connected to the rotor body 301, the rotor cover plate 302 is spaced from the stator 40 at a side close to the front frame flange 102, the rotor body 301 is connected to the rotating shaft flange 201, and the rotor body 301 and the rotor cover plate 302 rotate around the stator 40 and the fixed shaft 10 simultaneously. The rotor cover plate 302 is annular, and the rotor cover plate 302 is bolted to the rotor body 301. In which the rotor 30 is provided in two parts, and in order to prevent the rotor 30 and the stator 40 from being assembled due to interference when they are assembled, the rotor 30 is provided in two parts to facilitate the assembly of the rotor 30 and the stator 40. The rotor cover plate 302 is arranged in a circular ring shape, so that the rotor cover plate 302 is conveniently connected with the rotor body 301, the stability of the rotor cover plate 302 rotating along with the rotating shaft 20 is improved, and the processing is convenient. The rotor cover plate 302 is connected with the rotor body 301 through bolts, and installation and disassembly are facilitated.
The embodiment also provides an assembling method for assembling the above permanent magnet direct-drive wind power generator, as shown in fig. 2 to 9, the assembling method for a permanent magnet direct-drive wind power generator includes the following steps:
s1: connecting the rotating shaft 20 with the fixed shaft 10 through a first bearing 50 and a second bearing 60;
s2.1, integrally hoisting the connected rotating shaft 20 and fixed shaft 10 and sleeving the whole into a rotor body 301, connecting a rotor flange 303 with a rotating shaft flange 201, and then sleeving a stator 40 on the fixed shaft 10 from one side of a front frame flange 102 and connecting with a fixed shaft flange 101;
s3: the rotor cover plate 302 is connected to the rotor body 301.
In this embodiment, the diameters of the stator flange 401 and the dead axle flange 101 are both larger than the diameter of the front frame flange 102, so that during assembly, the first bearing 50 is sleeved on the dead axle 10, one end of the rotating shaft 20 is inserted into and sleeved on the first bearing 50 from one end of the dead axle 10, and the second bearing 60 is sleeved between the dead axle 10 and the rotating shaft 20, so that the assembly of the small assembly body of the rotating shaft 20 and the dead axle 10 is completed. After the small assembly body is assembled, the small assembly body is integrally hoisted and sleeved into the rotor body 301, so that the connection between the rotor flange 303 and the rotating shaft 20 can be completed, then the hoisting stator 40 is sleeved into the fixed shaft 10 from one end of the front frame flange 102 on the fixed shaft 10, namely the connection between the stator 40 and the fixed shaft 10 is completed, at this time, the stator flange 401 is positioned on one side, close to the front frame flange 102, of the fixed shaft flange 101, and finally the rotor cover plate 302 is sleeved into one end of the front frame flange 102 and connected with the rotor body 301.
In the assembling process, only a large-tonnage crane is used for assembling the stator 40 and the dead axle 10, and in other processes, the assembling can be completed by a small-tonnage crane. Therefore, the using amount of the large-scale crane is greatly reduced in the whole process, and the number of the small-tonnage cranes is far more than that of the large-tonnage cranes, so that the assembly sequence can be used for assembling a plurality of generators simultaneously, and the mass production is facilitated.
Example 2
As shown in fig. 10, the basic structure of the present embodiment is substantially the same as that of embodiment 1, except that: the end faces of the stator flange 401 and the fixed shaft flange 101 facing the rotating shaft flange 201 are connected, and the diameters of the fixed shaft flange 101 and the stator flange 401 are larger than that of the rotating shaft flange 201.
In the embodiment, the assembly method of the permanent magnet direct-drive wind driven generator is different from that of the embodiment 1 in that the step S2.2 after the rotating shaft 20 is connected with the fixed shaft 10 is that the stator 40 is hoisted, the stator flange 401 is connected with the fixed shaft flange 101, and the rotor body 301 is hoisted and sleeved into the rotating shaft 20 and is connected with the rotating shaft flange 201, wherein the whole body formed by connecting the rotating shaft 20 and the fixed shaft 10 is sleeved with one end of the rotating shaft 20.
In this embodiment, fig. 14 shows an assembly process of the permanent magnet direct-drive wind turbine generator of this embodiment, since the diameters of the fixed shaft flange 101 and the stator flange 401 are both larger than the diameter of the rotating shaft flange 201, the assembly sequence of the small assembly of the rotating shaft 20 and the fixed shaft 10 during assembly is the same as that in embodiment 1, wherein the assembly of the rotating shaft 20 and the fixed shaft 10 in this embodiment is understood with reference to fig. 2 to 5 in embodiment 1. As shown in fig. 11 to 13, after the small assembly is assembled, the stator 40 is hoisted, the stator 40 is sleeved into the fixed shaft 10 from one end of the rotating shaft 20 and connected with the fixed shaft flange 101, then the rotor body 301 is hoisted and sleeved into the rotating shaft 20, and finally the rotor cover plate 302 is sleeved into one end of the front frame flange 102 and connected with the rotor body 301, so that the assembly of the permanent magnet direct-drive wind driven generator is completed. After assembly, the stator flange 401 is located on the side of the end face of the dead axle flange facing the rotor shaft flange.
In the assembling process, the stator 40 is assembled with the fixed shaft 10, a large-tonnage crane is used for assembling the rotor body 301 with the rotating shaft 20, and a small-tonnage crane is used for completing the assembling in other processes. Therefore, the using amount of the large-scale crane is greatly reduced in the whole process, and the number of the small-tonnage cranes is far more than that of the large-tonnage cranes, so that the assembly sequence can be used for assembling a plurality of generators simultaneously, and the mass production is facilitated.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (8)
1. A permanent magnet direct-drive wind driven generator comprises a rotor, a stator, a rotating shaft and a fixed shaft, and is characterized in that a rotating shaft flange is arranged on the rotating shaft, a stator flange is arranged on the stator, a fixed shaft flange and a front frame flange are arranged on the fixed shaft, the front frame flange is positioned at one end of the fixed shaft, the rotating shaft is sleeved at the other end of the fixed shaft, the fixed shaft flange is positioned between the front frame flange and the rotating shaft flange in the axial direction of the fixed shaft, and the rotor is connected with the rotating shaft flange; the stator flange and the dead axle flange face the end face of the front frame flange and are connected, and the diameters of the dead axle flange and the stator flange are larger than the diameter of the front frame flange, or the stator flange and the dead axle flange face the end face of the rotating shaft flange and are connected, and the diameters of the dead axle flange and the stator flange are larger than the diameter of the rotating shaft flange.
2. The permanent magnet direct drive wind power generator as claimed in claim 1, wherein a bearing is connected between said rotating shaft and said dead axle.
3. The permanent magnet direct drive wind generator as set forth in claim 2 wherein said bearing comprises a first bearing and a second bearing, said first bearing being proximate said stator flange and said second bearing being distal from said stator flange.
4. The permanent magnet direct drive wind power generator as set forth in claim 1, wherein said rotor is bolted to said shaft flange and said stator flange is bolted to said dead axle flange.
5. The permanent magnet direct-drive wind power generator as claimed in claim 1, wherein a rotor flange is arranged on the rotor, a plurality of first through holes are arranged on the rotor flange, a plurality of first threaded holes are arranged on the rotating shaft flange, and the first through holes and the first threaded holes are in one-to-one correspondence.
6. The permanent magnet direct-drive wind driven generator according to claim 1, wherein a plurality of second through holes are formed in the stator flange, a plurality of second threaded holes are formed in the dead axle flange, and the second through holes correspond to the second threaded holes one to one.
7. The permanent magnet direct drive wind power generator as set forth in claim 1, wherein said rotor comprises a rotor body and a rotor cover plate, said rotor cover plate being connected to said rotor body, said rotor cover plate being spaced from said stator on a side thereof adjacent to said front frame flange, said rotor body being connected to said spindle flange, said rotor body and said rotor cover plate simultaneously rotating around said stator and said spindle.
8. The permanent magnet direct drive wind power generator as claimed in claim 7, wherein said rotor cover plate is circular ring shaped, and said rotor cover plate is bolted to said rotor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921536811.8U CN210977758U (en) | 2019-09-16 | 2019-09-16 | Permanent-magnet direct-drive wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921536811.8U CN210977758U (en) | 2019-09-16 | 2019-09-16 | Permanent-magnet direct-drive wind driven generator |
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| Publication Number | Publication Date |
|---|---|
| CN210977758U true CN210977758U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921536811.8U Active CN210977758U (en) | 2019-09-16 | 2019-09-16 | Permanent-magnet direct-drive wind driven generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630445A (en) * | 2019-09-16 | 2019-12-31 | 上海电气风电集团股份有限公司 | Permanent magnet direct-drive wind driven generator and assembly method thereof |
| CN113007028A (en) * | 2021-03-23 | 2021-06-22 | 上海电气风电集团股份有限公司 | Wind generating set |
-
2019
- 2019-09-16 CN CN201921536811.8U patent/CN210977758U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630445A (en) * | 2019-09-16 | 2019-12-31 | 上海电气风电集团股份有限公司 | Permanent magnet direct-drive wind driven generator and assembly method thereof |
| CN113007028A (en) * | 2021-03-23 | 2021-06-22 | 上海电气风电集团股份有限公司 | Wind generating set |
| CN113007028B (en) * | 2021-03-23 | 2022-05-20 | 上海电气风电集团股份有限公司 | Wind generating set |
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