CN110630445B - Permanent magnet direct-drive wind driven generator and assembly method thereof - Google Patents
Permanent magnet direct-drive wind driven generator and assembly method thereof Download PDFInfo
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- CN110630445B CN110630445B CN201910870922.0A CN201910870922A CN110630445B CN 110630445 B CN110630445 B CN 110630445B CN 201910870922 A CN201910870922 A CN 201910870922A CN 110630445 B CN110630445 B CN 110630445B
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- 238000005457 optimization Methods 0.000 abstract description 3
- 230000005389 magnetism Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a permanent magnet direct-drive wind driven generator and an assembly method thereof. Through changing the structure of dead axle flange for preceding frame flange or pivot flange can not interfere the stator when the assembly, with the realization to the optimization of assembly sequence, realize earlier with dead axle and pivot after the equipment, assemble rotor and stator again, reduce the occupation time to large-scale hoist, in order to do benefit to large-scale permanent magnetism direct drive aerogenerator's batch assembly.
Description
Technical Field
The invention relates to the field of wind power generation, in particular to a permanent magnet direct-drive wind power generator and an assembly method thereof.
Background
The direct-drive permanent magnet wind driven generator is a wind driven generator adopting a permanent magnet generator and directly coupling a wind wheel and a motor, the direct-drive permanent magnet wind driven generator cancels a heavy speed-increasing gear box, has the advantages of high efficiency, low noise, long service life, reduced unit volume, reduced operation and maintenance cost and the like, and therefore, the direct-drive wind driven generator is used as a third-generation wind power generation technology, is developed more and more rapidly, and has huge development potential and wide market prospect.
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, when the fixed shaft and the rotating shaft are assembled, 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, when the fixed shaft and the rotating shaft are assembled, the fixed shaft and the rotating shaft are assembled together with the rotor and the stator. Along with the increasing size and the increasing weight of the direct-drive wind driven generator, the lifting requirement is higher and higher, and the large-scale crane is occupied according to the assembly sequence, so that the mass production is not facilitated.
Disclosure of Invention
The invention aims to overcome the defects that a large-scale crane is occupied and mass production is not facilitated because the rotor and the stator are required to be assembled together when the fixed shaft and the rotating shaft are assembled due to the structures of the rotating shaft and the fixed shaft in the prior art.
The invention solves the technical problems by the following technical scheme:
the utility model provides a permanent magnet direct-drive wind-driven generator, includes rotor, stator, pivot and dead axle, its characterized in that, 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, preceding frame flange is located the one end of dead axle, the pivot cover is located the other end of dead axle, the dead axle flange is in the axial of dead axle is located between preceding frame flange and the pivot flange, the rotor with the pivot flange connection, wherein stator flange with the orientation of dead axle flange the terminal surface of preceding frame flange is connected and the diameter of dead axle flange with the diameter of stator flange is all greater than the diameter of preceding frame flange, or stator flange with the orientation of dead axle flange the terminal surface of pivot flange is connected and the diameter of dead axle flange with the diameter of stator flange is all greater than the diameter of pivot flange.
In this scheme, through the structure of change 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 sequence, realize earlier with after dead axle and the pivot equipment, finally reassemble rotor and stator, reduce the occupation time to large-scale assembly hoist, in order to do benefit to the batch installation of large-scale permanent magnet direct drive aerogenerator.
Preferably, a bearing is connected between the rotating shaft and the fixed shaft.
In this scheme, connect the bearing in order to realize the rotation of pivot relative to the dead axle between pivot and dead axle.
Preferably, the bearings comprise a first bearing and a second bearing, the first bearing being located adjacent the stator flange and the second bearing being located remote from the stator flange.
In the scheme, the bearings are arranged at the two ends of the rotating shaft, so that the rotating stability of the rotating shaft relative to the fixed shaft, namely the rotating stability of the rotor relative to the fixed shaft and the stator, is improved.
Preferably, the rotor is in bolted connection with the rotating shaft flange, and the stator flange is in bolted connection with 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 by 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 by one.
In the scheme, through holes are formed in the stator flange and the rotor flange, bolts can conveniently pass through the through holes, and threaded holes are formed in the fixed shaft flange and the rotating shaft flange, so that the bolts can be conveniently fixed.
Preferably, the rotor comprises a rotor body and a rotor cover plate, the rotor cover plate is connected with the rotor body, the rotor cover plate is arranged at intervals between the stator and one side close to the front frame flange, the rotor body is connected with 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 that the rotor and the stator are assembled conveniently because the rotor cannot be assembled due to interference during assembly of the rotor and the stator.
Preferably, the rotor cover plate is annular, and the rotor cover plate is connected with the rotor body through bolts.
In this scheme, the rotor apron sets up to the ring shape, and the rotor apron of being convenient for on the one hand is connected with the rotor body, and on the other hand is favorable to improving the stationarity of rotor apron when rotating along with the pivot, also is convenient for process moreover. The rotor cover plate is connected with the rotor body through bolts, so that the installation and the disassembly are facilitated.
An assembly method for assembling the permanent magnet direct drive wind driven generator is characterized by comprising the following steps:
s1: the rotating shaft is connected 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 carried out, 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 carried out,
S2.1, sleeving the connected integral hoisting of the rotating shaft and the fixed shaft into the rotor body, connecting the rotor flange with the rotating shaft flange, sleeving the stator on the fixed shaft from one side of the front frame 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 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: and connecting the rotor cover plate with the rotor body.
In this scheme, assemble a little assembly with dead axle and pivot earlier with small-size hoist, then according to dead axle flange's structural feature, accomplish the equipment of rotor and stator, whole process greatly reduced large-scale hoist'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 simultaneously carry out the assembly of a plurality of generators, and the mass production is facilitated.
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.
The invention has the positive progress effects that: according to the invention, the structure of the fixed shaft flange of the permanent magnet direct-drive wind driven generator is improved, so that the rotating shaft and the fixed shaft can be assembled into a small assembly body during assembly, and then the stator and the rotor body are installed according to the structural characteristics of the fixed shaft flange. 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 turbine according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a fixed shaft in the 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 mounted in 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 shaft is sleeved into the first bearing.
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 fixed shaft.
Fig. 6 is a schematic structural diagram of a rotor body in the permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention after the rotor body is connected to a flange of a rotating shaft.
Fig. 7 is a schematic structural diagram of a stator and a fixed shaft flange in a permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention.
Fig. 8 is a schematic structural diagram of a rotor cover plate and a rotor body in the permanent magnet direct-drive wind turbine according to embodiment 1 of the present invention.
Fig. 9 is a schematic diagram of an assembly flow in the 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 turbine according to embodiment 2 of the present invention.
Fig. 11 is a schematic structural diagram of a stator and a fixed shaft flange in a permanent magnet direct-drive wind turbine according to embodiment 2 of the present invention.
Fig. 12 is a schematic structural diagram of a rotor body in the permanent magnet direct-drive wind turbine according to embodiment 2 of the present invention after the rotor body is connected to a flange of a rotating shaft.
Fig. 13 is a schematic structural diagram of a rotor cover plate and a rotor body in a permanent magnet direct drive wind turbine according to embodiment 2 of the present invention.
Fig. 14 is a schematic diagram of an assembly flow in a permanent magnet direct drive wind turbine according to embodiment 2 of the present invention.
Reference numerals illustrate:
fixed shaft 10
Fixed shaft flange 101
Front frame flange 102
Rotating shaft 20
Rotating shaft flange 201
Rotor 30
Rotor body 301
Rotor cover plate 302
Rotor flange 303
Stator 40
Stator flange 401
First bearing 50
Second bearing 60
S1 to S3 steps
Detailed Description
The invention will now be more fully described by way of example only and with reference to the accompanying drawings, but the invention is not thereby limited to the scope of the examples described.
Example 1
As shown in fig. 1, this embodiment provides a permanent magnet direct-driven wind power generator, including rotor 30, stator 40, pivot 20 and dead axle 10, be equipped with pivot flange 201 on the pivot 20, be provided with stator flange 401 on the stator 40, be equipped with dead axle flange 101 and preceding frame flange 102 on the dead axle 10, preceding frame flange 102 is located the one end of dead axle 10, the other end of dead axle 10 is located to pivot 20 cover, dead axle flange 101 is located between preceding frame flange 102 and pivot flange 201 in the axial of dead axle 10, rotor 30 and pivot flange 201 connect, wherein stator flange 401 and the terminal surface of dead axle flange 101 towards preceding frame flange 102 are connected and the diameter of dead axle flange 101 and stator flange 401 is all greater than the diameter of preceding frame flange 102.
By changing the structures of the fixed shaft flange 101 and the front frame flange 102, the front frame flange 102 can not interfere the stator flange 401 to be sleeved on the fixed shaft 10 during assembly, so that the optimization of the assembly sequence is realized, the rotor 30 and the stator 40 are assembled after the fixed shaft 10 and the rotating shaft 20 are assembled, the occupied time of a large-scale assembly crane is reduced, and the large-scale 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 include a first bearing 50 and a second bearing 60, the first bearing 50 being proximate the stator flange 401 and the second bearing 60 being remote from the stator flange 401. Wherein a bearing is connected between the rotation shaft 20 and the fixed shaft 10 to enable the rotation of the rotation shaft 20 with respect to the fixed shaft 10. Bearings are provided at both ends of the rotating shaft 20, which is advantageous for improving the rotation stability of the rotating shaft 20 relative to the fixed shaft 10, that is, the rotation stability of the rotor 30 relative to the fixed shaft 10 and the stator 40.
The rotor 30 is bolted to the shaft flange 201, and the stator flange 401 is bolted to the fixed shaft 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 and the first threaded holes are in one-to-one correspondence. The stator flange 401 is provided with a plurality of second through holes, and 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 by one. Wherein, bolted connection convenient to detach, easy maintenance. Through holes are formed in the stator flange 401 and the rotor flange 303 so as to facilitate bolts to pass through, and threaded holes are formed in the fixed shaft flange 101 and the rotating shaft flange 201 so as to facilitate bolt fixation.
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 apart from the stator 40 at a side close to the front frame flange 102, the rotor body 301 is connected to the shaft flange 201, and the rotor body 301 and the rotor cover plate 302 are simultaneously rotated around the stator 40 and the stator shaft 10. Rotor cover plate 302 is annular, and rotor cover plate 302 is connected with rotor body 301 through bolts. In which the rotor 30 is provided in two parts, in order to avoid the inability to assemble due to interference when the rotor 30 and the stator 40 are assembled, the rotor 30 is provided in two parts to facilitate the assembly of the rotor 30 and the stator 40. Rotor cover plate 302 is arranged in a circular ring shape, so that on one hand, rotor cover plate 302 is convenient to connect with rotor body 301, on the other hand, stability of rotor cover plate 302 along with rotation of rotating shaft 20 is improved, and processing is also convenient. The rotor cover plate 302 is connected with the rotor body 301 through bolts, and is beneficial to installation and disassembly.
The embodiment also provides an assembly method for assembling the permanent magnet direct-drive wind driven generator, as shown in fig. 2 to 9, the assembly method of the permanent magnet direct-drive wind driven generator comprises 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, sleeving the integral hoisting of the connected rotating shaft 20 and the fixed shaft 10 into the rotor body 301, connecting the rotor flange 303 with the rotating shaft flange 201, sleeving the stator 40 on the fixed shaft 10 from one side of the front frame flange 102 and connecting the stator with the fixed shaft flange 101;
s3: the rotor cover plate 302 is connected with the rotor body 301.
In this embodiment, the diameters of the stator flange 401 and the fixed shaft flange 101 are larger than the diameter of the front frame flange 102, so that during assembly, the first bearing 50 is sleeved on the fixed shaft 10, then one end of the rotating shaft 20 is penetrated from one end of the fixed shaft 10 and sleeved on the first bearing 50, and then the second bearing 60 is sleeved between the fixed shaft 10 and the rotating shaft 20, thus completing the assembly of the small assembly of the rotating shaft 20 and the fixed shaft 10, and in this process, the assembly can be completed only by using a small-tonnage crane. After the assembly of the small assembly is completed, the small assembly is integrally lifted and sleeved into the rotor body 301, the connection between the rotor flange 303 and the rotating shaft 20 can be completed, then the lifting stator 40 is sleeved into the fixed shaft 10 from one end of the front frame flange 102 on the fixed shaft 10, 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 of the fixed shaft flange 101, which is close to the front frame flange 102, and finally the rotor cover plate 302 is sleeved into one end of the front frame flange 102 and is connected with the rotor body 301.
In this assembly process, only a large tonnage crane is used for assembling the stator 40 with the stator shaft 10, and in other processes, a small tonnage crane is used for completing the assembly. Therefore, the whole process greatly reduces the use amount of the large-sized cranes, and the number of the small-tonnage cranes is often far more than that of the large-tonnage cranes, so that the assembly sequence can simultaneously carry out the assembly of a plurality of generators, thereby being beneficial to mass production.
Example 2
As shown in fig. 10, the basic structure of this 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 the diameter of the rotating shaft flange 201.
In the present embodiment, the assembly method of the permanent magnet direct drive wind turbine is different from that of embodiment 1 in that the step S2.2 after connecting the rotating shaft 20 with the fixed shaft 10 is that the stator 40 is hoisted, the stator flange 401 is sleeved into the connected whole of the rotating shaft 20 and the fixed shaft 10 from one end of the rotating shaft 20, and is connected with the fixed shaft flange 101, and then the rotor body 301 is hoisted and sleeved into the rotating shaft 20 and is connected with the rotating shaft flange 201.
In the present embodiment, fig. 14 shows the assembly flow of the permanent magnet direct drive wind turbine of the present embodiment, and since the diameters of the stator flange 401 and the stator flange 101 are larger than those of the rotor flange 201, the assembly sequence of the minor assembly of the rotor shaft 20 and the stator 10 is the same as that of embodiment 1 when the assembly is performed, wherein the assembly of the rotor shaft 20 and the stator 10 in the present embodiment is understood with reference to fig. 2 to 5 in embodiment 1. As shown in fig. 11 to 13, after the assembly of the small assembly, the stator 40 is hoisted, the stator 40 is sleeved into the fixed shaft 10 from one end of the rotating shaft 20 and is 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 from one end of the front frame flange 102 and is connected with the rotor body 301, thus completing the assembly of the permanent magnet direct-drive wind driven generator. After assembly, the stator flange 401 is located on the side of the stator flange facing the end face of the rotor shaft flange.
In this assembly process, the stator 40 is assembled with the stator shaft 10, a large-tonnage crane is used for assembling the rotor body 301 with the rotating shaft 20, and in other processes, the assembly can be completed by using a small-tonnage crane. Therefore, the whole process greatly reduces the use amount of the large-sized cranes, and the number of the small-tonnage cranes is often far more than that of the large-tonnage cranes, so that the assembly sequence can simultaneously carry out the assembly of a plurality of generators, thereby being beneficial to mass production.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and 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 principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (7)
1. The permanent magnet direct-drive wind driven generator comprises a rotor, a stator, a rotating shaft and a fixed shaft, and is characterized in that the rotating shaft is provided with a rotating shaft flange, the stator is provided with a stator flange, the fixed shaft is provided with a fixed shaft flange and a front frame flange, 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 is connected with the end face of the dead axle flange, which faces the front frame flange, 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 is connected with the end face of the dead axle flange, which faces the rotating axle flange, and the diameters of the dead axle flange and the stator flange are larger than the diameter of the rotating axle flange;
a bearing is connected between the rotating shaft and the fixed shaft;
The rotor is connected with the rotating shaft flange through bolts, and the stator flange is connected with the fixed shaft flange through bolts.
2. The permanent magnet direct drive wind generator of claim 1, wherein said bearings comprise a first bearing and a second bearing, said first bearing being proximate said stator flange and said second bearing being distal said stator flange.
3. The permanent magnet direct-drive wind driven generator according to claim 1, wherein 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 and the first threaded holes are in one-to-one correspondence.
4. 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 by one.
5. The permanent magnet direct drive wind turbine of claim 1, wherein the rotor includes a rotor body and a rotor cover plate, the rotor cover plate being coupled to the rotor body, the rotor cover plate being spaced from the stator on a side adjacent to the front frame flange, the rotor body being coupled to the shaft flange, the rotor body and the rotor cover plate being simultaneously rotatable about the stator and the stator shaft.
6. The permanent magnet direct drive wind turbine of claim 5, wherein the rotor cover plate is annular and is bolted to the rotor body.
7. An assembly method for assembling the permanent magnet direct drive wind turbine according to any one of claims 1-6, characterized in that the assembly method comprises the steps of:
s1: the rotating shaft is connected 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 carried out, 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 carried out,
S2.1, sleeving the connected integral hoisting of the rotating shaft and the fixed shaft into the rotor body, connecting the rotor flange with the rotating shaft flange, sleeving the stator on the fixed shaft from one side of the front frame 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 into the rotating shaft and connecting the rotor body with the rotating shaft flange,
After completion of step S2.1 or step S2.2, step S3 is entered,
S3: and connecting the rotor cover plate with the rotor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870922.0A CN110630445B (en) | 2019-09-16 | 2019-09-16 | Permanent magnet direct-drive wind driven generator and assembly method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870922.0A CN110630445B (en) | 2019-09-16 | 2019-09-16 | Permanent magnet direct-drive wind driven generator and assembly method thereof |
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| CN110630445A CN110630445A (en) | 2019-12-31 |
| CN110630445B true CN110630445B (en) | 2024-07-16 |
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| CN112814847A (en) * | 2021-02-25 | 2021-05-18 | 上海电气风电集团股份有限公司 | Wind generating set |
| CN114654182A (en) * | 2022-02-28 | 2022-06-24 | 明阳智慧能源集团股份公司 | Method for replacing bearing tower of semi-direct-drive permanent magnet wind power generator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931224A (en) * | 2019-04-17 | 2019-06-25 | 上海电气风电集团有限公司 | Outer rotor type direct drive wind power generating set |
| CN210977758U (en) * | 2019-09-16 | 2020-07-10 | 上海电气风电集团股份有限公司 | Permanent-magnet direct-drive wind driven generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK2063117T3 (en) * | 2007-11-26 | 2016-12-19 | Siemens Ag | A device for a direct drive generator, a direct drive generator, turbine and the method for mounting a generator |
| CN102536666B (en) * | 2010-12-09 | 2015-05-13 | 厦门蓝溪科技有限公司 | Large-size direct-drive double wind-driven generator system and installation method thereof |
| CN110195685B (en) * | 2019-05-27 | 2020-11-27 | 上海电气风电集团股份有限公司 | Brake system and outer rotor type direct-drive wind generating set |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931224A (en) * | 2019-04-17 | 2019-06-25 | 上海电气风电集团有限公司 | Outer rotor type direct drive wind power generating set |
| CN210977758U (en) * | 2019-09-16 | 2020-07-10 | 上海电气风电集团股份有限公司 | Permanent-magnet direct-drive wind driven generator |
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