CN210829603U - Wind power generator - Google Patents
Wind power generator Download PDFInfo
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- CN210829603U CN210829603U CN201921730013.9U CN201921730013U CN210829603U CN 210829603 U CN210829603 U CN 210829603U CN 201921730013 U CN201921730013 U CN 201921730013U CN 210829603 U CN210829603 U CN 210829603U
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- motor
- end cover
- shell
- main shaft
- limiting piece
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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 relates to a wind driven generator, including the motor part of fan main shaft, fan blade and fan, its characterized in that: the motor part comprises a shell, a generator stator and a generator rotor, wherein the shell is formed by connecting a motor upper end cover and a motor lower end cover; a concentricity limiting structure is arranged between the upper end cover of the motor and the lower end cover of the motor; the concentricity limiting structure comprises an upper limiting piece arranged at the lower end part of the upper end cover of the motor and a lower limiting piece arranged at the upper end part of the lower end cover of the motor; the upper limiting piece and the lower limiting piece are matched with each other to form mutual attachment in the radial direction, and the radial limiting surface of the concentricity of the upper end cover of the motor and the lower end cover of the motor can be limited. The utility model discloses can make the concentricity obtain the guarantee, the atress is more balanced during the equipment, and the stress point makes the fan also can even running under adverse circumstances by the conversion of some reach.
Description
Technical Field
The utility model belongs to the technical field of small-size aerogenerator, concretely relates to aerogenerator.
Background
The conventional wind driven generator (such as a spiral wind driven generator) is complex in overall production and assembly process, a motor rotor, an end cover and a main shaft are independent, and the motor is fixed only by 4 bolts without a positioning device after the overall assembly of the motor is finished. The drawbacks and consequences of this are: (1) during assembly, loosening caused by the fact that very individual bolts are not assembled according to the tightening torque exists; (2) in the long-term use process of customers, the bolt shows loosening signs. Above-mentioned two kinds of circumstances can lead to the fan to have very big potential safety hazard, under the strong wind condition (if during strong typhoon), fan axial force grow, shake, cluster move the aggravation, unable normal operating can cause the fan to damage under the extreme condition, leads to the fact economic loss for the customer.
In addition, the middle main shaft of the conventional wind driven generator (such as a spiral wind driven generator) is simple and crude in processing and assembling, and lacks safety guarantee. The following drawbacks exist: (1) after the conventional main shaft is machined, the upper end cover of the fan is directly inserted and welded, and the concentricity of the fan cannot be ensured; (2) because the main shaft is formed by processing a hollow steel pipe, the strength requirement cannot be ensured on the connecting surface of the main shaft and the end cover; (3) the motor main body and the main shaft are troublesome to assemble, the coaxiality requirement of each part cannot be guaranteed, and the quality of the fan after the assembly is doubtful; (3) the motor of the fan is internally provided with only one single bearing, and due to the machining precision problem and long-term operation abrasion, a rotor shaft of the fan can be caused to move back and forth in a serial mode, so that once the phenomenon is generated, potential safety hazards exist in the operation of the fan.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a wind driven generator, make the concentricity obtain the guarantee, the atress is more balanced during the equipment, and the stress point makes the fan also can even running under adverse circumstances by the conversion of some reach.
In order to solve the technical problem, the utility model discloses a technical scheme be: the wind driven generator comprises a fan main shaft, fan blades and a motor part of a fan, and is characterized in that: the motor part comprises a shell, a generator stator and a generator rotor, wherein the shell is formed by connecting a motor upper end cover and a motor lower end cover; a concentricity limiting structure is arranged between the upper end cover of the motor and the lower end cover of the motor; the concentricity limiting structure comprises an upper limiting piece arranged at the lower end part of the upper end cover of the motor and a lower limiting piece arranged at the upper end part of the lower end cover of the motor; the upper limiting piece and the lower limiting piece are matched with each other to form mutual attachment in the radial direction, and the radial limiting surface of the concentricity of the upper end cover of the motor and the lower end cover of the motor can be limited.
Furthermore, the generator rotor is fixed at the lower end of the fan main shaft and rotates along with the fan main shaft; the generator stator is fixedly arranged in the shell, and the main shaft of the fan is in running fit with the shell.
Furthermore, a fan main shaft of the wind driven generator is fixed with a shell formed by connecting an upper end cover of the motor and a lower end cover of the motor, and the shell rotates along with the fan main shaft.
Further, the radial limiting surface is a circular surface along the circumferential surface of the shell, or a plurality of sections of circular arc surfaces uniformly arranged along the shell.
Furthermore, the upper limiting piece is an upper step surface arranged at the lower end part of the upper end cover of the motor, and the lower limiting piece is a lower step surface arranged at the upper end part of the lower end cover of the motor; the upper step surface is a circular step surface arranged along the circumferential direction of the upper end cover of the motor, and the lower step surface is a circular step surface arranged along the circumferential direction of the lower end cover of the motor; the surfaces which are mutually attached and formed in the radial direction after the upper step surface and the lower step surface are mutually matched are also circular surfaces along the circumferential direction.
Furthermore, the upper limiting piece is an upper step surface arranged at the lower end part of the upper end cover of the motor, and the lower limiting piece is a lower step surface arranged at the upper end part of the lower end cover of the motor; the upper step surface is provided with a plurality of arc-shaped step surfaces which are uniformly distributed along the circumferential direction of the upper end cover of the motor, and the lower step surface is provided with a plurality of arc-shaped step surfaces which are uniformly distributed along the circumferential direction of the lower end cover of the motor; the lower step surfaces correspond to the upper step surfaces one to one and are mutually attached, and a plurality of arc-shaped attaching surfaces which are distributed discontinuously are formed in the circumferential direction of the shell.
Furthermore, the upper limiting piece is an upper groove formed in the lower end portion of the upper end cover of the motor, the lower limiting piece is a lower protrusion formed in the upper end portion of the lower end cover of the motor, and the upper groove and the lower protrusion are matched with each other to form a radial limiting surface.
Furthermore, the upper limiting piece is a lower protrusion arranged at the upper end part of the lower end cover of the motor, the lower limiting piece is an upper groove arranged at the lower end part of the upper end cover of the motor, and the upper groove and the lower protrusion are matched with each other to form a radial limiting surface.
Furthermore, the fan main shaft is in running fit with the upper end cover of the motor and the lower end cover of the motor through an upper bearing and a lower bearing respectively; the upper bearing and the lower bearing are respectively pressed into the central holes of the upper end cover and the lower end cover of the motor.
Further, the fan main shaft is integrally processed into a hollow shaft body by adopting steel.
Further, the generator stator is arranged on positioning steps of the upper end cover and the lower end cover of the motor.
The utility model has the advantages of it is following:
(1) the utility model discloses well upper and lower end cover has adopted the design of step tongue and groove, and the atress is more balanced during the equipment, and the stress point makes the fan also can even running under adverse circumstances by the conversion of some reach.
(2) The utility model discloses work efficiency when greatly having promoted the equipment. Compared with the traditional wind driven generator (especially a spiral wind driven generator), the whole assembly is more convenient and faster, the assembly efficiency can be improved by 30 percent through effective data statistics, and the purchase order of a large quantity of fans in a short time by a client can be met.
(3) The whole security performance of aerogenerator has obtained effective assurance, has thoroughly avoidd traditional aerogenerator (especially screw type aerogenerator) spare part many, can't guarantee the technical requirement of each part concentricity during the equipment strictly. Because the utility model discloses a key spare part equipment integration, the concentricity is ensured, when the fan operation, guarantees each key position and operates steadily on the coaxial line, solves the shake problem after the fan long-term operation.
(4) The utility model discloses a replace traditional single bearing with upper and lower duplex bearing arrangement, this arrangement form is through long-term test, can avoid the phenomenon of fan cluster to take place, has further ensured the operation safety and the life of fan.
Drawings
Fig. 1 is a schematic view of an exploded state of the wind turbine of the present invention.
Fig. 2 is a schematic structural diagram of a housing according to a first embodiment.
Description of reference numerals: 1-a fan main shaft, 2-a fan blade, 3-a motor part, 4-a fan blade mounting rod, 5-a flange base, 301-a motor upper end cover, 302-a motor lower end cover, 303-a generator stator, 304-a generator rotor, 305-an upper bearing, 306-a lower bearing, 307-a first bushing, 308-a second bushing, 309-a first bearing retainer ring, 310-a second bearing retainer ring, 311-a locking nut, 312-an end cover fixing piece, 601-an upper step surface and 602-a lower step surface.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1: in the embodiment, a spiral wind driven generator is taken as an example to explain the structure of the wind driven generator, and the structure comprises a fan main shaft 1, fan blades 2 and a motor part 3 of a fan, wherein the fan blades 2 are spiral blades, the spiral blades are arranged on the fan main shaft 1 through a fan blade mounting rod 4, the fan main shaft 1 is integrally processed into a hollow shaft body by adopting 45# steel, the existing hollow steel pipe is replaced, the overall strength can be increased, and the fan stability in extreme weather is improved; the motor part 3 comprises a motor upper end cover 301, a motor lower end cover 302, a generator stator 303, a generator rotor 304, an upper bearing 305, a lower bearing 306, a first bushing 307, a second bushing 308, a first bearing retainer 309, a second bearing retainer 310 and a locking nut 311; the motor upper end cover 301 and the motor lower end cover 302 are connected through four sets of end cover fixing pieces 312 to form a housing for mounting the generator stator 303 and the generator rotor 304, and in this embodiment, the end cover fixing pieces 312 are bolt and nut pieces; the generator stator 303 is arranged on positioning steps of the upper motor end cover 301 and the lower motor end cover 302, and the generator stator 303 is relatively fixed with a shell formed by the upper motor end cover 301 and the lower motor end cover 302; the lower end of the fan main shaft 1 is inserted into the shell, a generator rotor 304 is arranged on a step at the lower end of the fan main shaft 1, and the generator rotor 304 and the fan main shaft 1 are relatively fixed and rotate along with the fan main shaft 1; the fan main shaft 1 is in running fit with the motor upper end cover 301 and the motor lower end cover 302 through an upper bearing 305 and a lower bearing 306 respectively; the upper bearing 305 and the lower bearing 306 are pressed into the central holes of the upper end cover 301 and the lower end cover 302 of the motor, the upper end of the upper bearing 305 is provided with a first bearing retainer ring 309, a first bushing 307 is arranged between the lower end of the upper bearing 305 and the generator rotor 304, the lower end of the lower bearing 306 is provided with a second bearing retainer ring 310, and a second bushing 308 is arranged between the upper end of the lower bearing 306 and the generator rotor 304; the blower main shaft 1 is provided with a locking nut 311 extending out of the lower end of the housing, and in this embodiment, the locking nut 311 may be a cap nut or the like.
A concentricity limiting structure is arranged between the upper end cover 301 of the motor and the lower end cover 302 of the motor; the concentricity limiting structure comprises an upper step surface 601 arranged at the lower end part of the upper end cover 301 of the motor and a lower step surface 602 arranged at the upper end part of the lower end cover 302 of the motor, after the upper end cover 301 of the motor and the lower end cover 302 of the motor are assembled together, the upper step surface 601 and the lower step surface 602 are provided with surfaces which are mutually attached in the radial direction to form a radial limiting surface, the mutually attached limiting surfaces can enable stress points to be converted into one surface from the former four points when the upper end cover 301 of the motor and the lower end cover 302 of the motor are installed, the requirement of the concentricity of the fan is guaranteed by the conversion of the points and the surfaces, and meanwhile, the installation is convenient.
In this embodiment, the upper step surface 601 is a circular step surface arranged along the circumferential direction of the upper end cover 301 of the motor, and the lower step surface 602 is a circular step surface arranged along the circumferential direction of the lower end cover 302 of the motor; the surfaces, which are formed in the radial direction after the upper step surface 601 and the lower step surface 602 are matched with each other, are also circular surfaces along the circumferential direction.
The bottom of the motor part 3 is provided with a flange base 5.
The working principle of the wind driven generator in the embodiment is as follows: the fan main shaft 1 and the generator rotor 304 are relatively fixed, when a fan blade 2 on the fan main shaft 1 bears wind power to rotate, the generator rotor 304 is driven to rotate, and the fan main shaft 1 and a shell formed by the motor upper end cover 301 and the motor lower end cover 302 are arranged in a relatively rotating mode, so that the shell is kept still in the rotating process of the generator rotor 304. In the traditional wind driven generator structure, a fan main shaft is only used for installing fan blades, and a shell can rotate along with the fan main shaft. In this embodiment, the fan main shaft 1 and the generator rotor 304 form an integrated assembly structure through the structure, so that the centers of the fan main shaft 1, the generator rotor 304, the upper bearing 305 and the lower bearing 306 can be ensured to be on the same axis, and the problems of fan shaking and fan blade scattering caused by unqualified fan concentricity are effectively solved. Meanwhile, due to the adoption of the structural arrangement of the upper bearing and the lower bearing in the embodiment, the overall strength of the fan is improved, and the movement of the main shaft of the fan is avoided.
Example two:
the wind power generator in this embodiment may be a type other than a helical wind power generator, such as an H-type wind power generator, a cage type wind power generator, and the like.
Example three:
in this embodiment, a fan main shaft 1 of the wind driven generator is fixed to a housing formed by connecting a motor upper end cover 301 and a motor lower end cover 302, and when the fan main shaft 1 rotates, the housing rotates along with the fan main shaft; the arrangement of the concentricity limiting structure between the upper motor end cover 301 and the lower motor end cover 302 is the same as that of the first embodiment.
Example four:
in this embodiment, on the basis of the first embodiment or the third embodiment, the upper step surface 601 is set as a plurality of (generally not less than four) arc-shaped step surfaces uniformly arranged along the circumferential direction of the upper end cover 301 of the motor, and the lower step surface 602 is set as a plurality of arc-shaped step surfaces uniformly arranged along the circumferential direction of the lower end cover 302 of the motor; after the upper motor end cover 301 and the lower motor end cover 302 are mounted with each other, the lower step surfaces 602 correspond to the upper step surfaces 601 one to one and are attached to each other, a plurality of arc-shaped attaching surfaces distributed discontinuously are formed in the circumferential direction of the shell, and the requirement for guaranteeing the concentricity of the fan can be met.
Example five:
in this embodiment, on the basis of the first embodiment or the third embodiment, a concentricity limit structure is arranged between the motor upper end cover 301 and the motor lower end cover 302; the concentricity limiting structure comprises an upper groove arranged at the lower end part of the upper end cover 301 of the motor and a lower protrusion arranged at the upper end part of the lower end cover 302 of the motor, and after the upper end cover 301 of the motor and the lower end cover 302 of the motor are assembled together, the upper groove and the lower protrusion are mutually matched to form a radial limiting surface.
Claims (11)
1. A wind power generator comprises a fan main shaft (1), a fan blade (2) and a motor part (3) of a fan, and is characterized in that: the motor part (3) comprises a shell, a generator stator (303) and a generator rotor (304), wherein the shell is formed by connecting a motor upper end cover (301) and a motor lower end cover (302), the generator stator (303) and the generator rotor (304) are installed in the shell, and the lower end of the fan main shaft (1) extends into the shell and is connected with the generator rotor (304); a concentricity limiting structure is arranged between the upper end cover (301) of the motor and the lower end cover (302) of the motor; the concentricity limiting structure comprises an upper limiting piece arranged at the lower end part of the upper end cover (301) of the motor and a lower limiting piece arranged at the upper end part of the lower end cover (302) of the motor; the upper limiting piece and the lower limiting piece are matched with each other to form mutual fit in the radial direction, and the radial limiting surface of the concentricity of the upper end cover (301) of the motor and the lower end cover (302) of the motor can be limited.
2. A wind power generator as claimed in claim 1, wherein: the generator rotor (304) is fixed at the lower end of the fan main shaft (1), and the generator rotor (304) rotates along with the fan main shaft (1); the generator stator (303) is fixedly arranged in the shell, and the fan main shaft (1) is in running fit with the shell.
3. A wind power generator as claimed in claim 1, wherein: a fan main shaft (1) of the wind driven generator is fixed with a shell formed by connecting a motor upper end cover (301) and a motor lower end cover (302), and the shell rotates along with the fan main shaft (1).
4. A wind power generator as claimed in claim 2 or 3, characterized in that: the radial limiting surface is a circular surface along the circumferential surface of the shell or a plurality of sections of circular arc surfaces which are uniformly arranged along the shell.
5. A wind power generator as claimed in claim 2 or 3, characterized in that: the upper limiting piece is an upper step surface (601) arranged at the lower end part of the upper end cover (301) of the motor, and the lower limiting piece is a lower step surface (602) arranged at the upper end part of the lower end cover (302) of the motor; the upper step surface (601) is a circular step surface arranged along the circumferential direction of the upper end cover (301) of the motor, and the lower step surface (602) is a circular step surface arranged along the circumferential direction of the lower end cover (302) of the motor; the surfaces which are formed in the radial direction after the upper step surface (601) and the lower step surface (602) are matched with each other are also circular surfaces along the circumferential direction.
6. A wind power generator as claimed in claim 2 or 3, characterized in that: the upper limiting piece is an upper step surface (601) arranged at the lower end part of the upper end cover (301) of the motor, and the lower limiting piece is a lower step surface (602) arranged at the upper end part of the lower end cover (302) of the motor; the upper step surface (601) is provided with a plurality of sections of arc-shaped step surfaces which are uniformly arranged along the circumferential direction of the upper end cover (301) of the motor, and the lower step surface (602) is provided with a plurality of sections of arc-shaped step surfaces which are uniformly arranged along the circumferential direction of the lower end cover (302) of the motor; the lower step surfaces (602) and the upper step surfaces (601) are in one-to-one correspondence and are mutually attached, and a plurality of arc-shaped attaching surfaces which are distributed discontinuously are formed in the circumferential direction of the shell.
7. A wind power generator as claimed in claim 2 or 3, characterized in that: the upper limiting piece is an upper groove arranged at the lower end part of the upper end cover (301) of the motor, the lower limiting piece is a lower protrusion arranged at the upper end part of the lower end cover (302) of the motor, and the upper groove and the lower protrusion are matched with each other to form a radial limiting surface.
8. A wind power generator as claimed in claim 2 or 3, characterized in that: the upper limiting piece is a lower protrusion arranged at the upper end of the lower end cover (302) of the motor, the lower limiting piece is an upper groove arranged at the lower end of the upper end cover (301) of the motor, and the upper groove and the lower protrusion are matched with each other to form a radial limiting surface.
9. A wind power generator as claimed in claim 2, wherein: the fan main shaft (1) is in running fit with the motor upper end cover (301) and the motor lower end cover (302) through an upper bearing (304) and a lower bearing (306) respectively; the upper bearing (305) and the lower bearing (306) are pressed into the central holes of the upper end cover (301) and the lower end cover (302) of the motor respectively.
10. A wind power generator as claimed in claim 2, wherein: the fan main shaft (1) is integrally processed into a hollow shaft body by adopting steel.
11. A wind power generator as claimed in claim 2, wherein: and the generator stator (303) is arranged on positioning steps of the upper end cover (301) and the lower end cover (302) of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921730013.9U CN210829603U (en) | 2019-10-15 | 2019-10-15 | Wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921730013.9U CN210829603U (en) | 2019-10-15 | 2019-10-15 | Wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210829603U true CN210829603U (en) | 2020-06-23 |
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ID=71260045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921730013.9U Active CN210829603U (en) | 2019-10-15 | 2019-10-15 | Wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210829603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578655A (en) * | 2019-10-15 | 2019-12-17 | 江苏乃尔风电技术开发有限公司 | Wind power generator |
-
2019
- 2019-10-15 CN CN201921730013.9U patent/CN210829603U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578655A (en) * | 2019-10-15 | 2019-12-17 | 江苏乃尔风电技术开发有限公司 | Wind power generator |
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