CN201753665U - Wind generator with variable blade pitch and variable rotation angle - Google Patents
Wind generator with variable blade pitch and variable rotation angle Download PDFInfo
- Publication number
- CN201753665U CN201753665U CN2010205084509U CN201020508450U CN201753665U CN 201753665 U CN201753665 U CN 201753665U CN 2010205084509 U CN2010205084509 U CN 2010205084509U CN 201020508450 U CN201020508450 U CN 201020508450U CN 201753665 U CN201753665 U CN 201753665U
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- wind
- rotation angle
- generator
- variable
- angle
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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
A wind generator with variable blade pitch and variable rotation angle comprises the following components: a generator (7), a rotating member (8) and a vertical shaft (14), wherein the rotation angle changing range of three fan blade connection shafts (1) of a synchronous rest mechanism connected with the generator (7) is 0-30 DEG. Along with the changing of the rotation angle, the angle of the blade pitch is adjusted in -10-+10DEG. The wind generator with variable blade pitch and variable rotation angle is advantageous in that: the structure is simple, counteraction between the air pressure of wind wheel and a centrifugal force generated by self rotation of the fan blades can be realized for obtaining a purpose of higher safety of the wind generator; furthermore the blade pitch angle of the fan blades is changed while the rotation angle of the wind wheels is changed, a speed limit function for safety is performed at the states of high wind speed and gust, strong wind resistance is obtained and safer operation of the wind generator is ensured.
Description
Technical field
The utility model relates to technical field of wind power generation, and a kind of specifically feather becomes the corner wind-driven generator again.
Background technique
Because the security threat in the wind-driven generator work mainly comes under the high wind speed the blast that wind turbines rotor produced, and therefore overcomes the load of blast, effectively resists this load, become the wind-driven generator whether can be in the key of trouble free service under the strong wind.The wind-driven generator variable propeller pitch technology is because output is stable, the anti-strong wind ability is strong, and the efficient height has developed into a trend of industry, provides a kind of simple and easy reliability and durability pitch-controlled wind-driven generator to seem particularly necessary.At present domestic middle-size and small-size wind-driven generator pitching square technology also develops comparatively rapidly, and particularly the centrifugal variation paddle technology is comparatively ripe, but it is still blank to change the blower fan technology of propeller pitch angle by the variation that blast changes the angle of revolution.
The model utility content
The purpose of this utility model is that a kind of variation that changes the angle of revolution by blast of design changes propeller pitch angle, feather simple in structure becomes the corner wind-driven generator again, and this technical pattern is applicable to that leeward is to wind-driven generator.
The utility model feather becomes the corner wind-driven generator again, comprise: generator 7, solid of rotation 8, vertical shaft 14, three fan blade coupling shafts, the 1 rotation change angle of revolution scope of the synchronous reset mechanism that links to each other with generator 7 is 0 °～30 ° in addition, along with the variation of angle of revolution, propeller pitch angle is also correspondingly adjusted in-10 °～+ 10 °.
Described synchronous reset mechanism, comprise: three fan blade coupling shafts 1 link to each other with hub body 5 by pivot pin 6, fan blade coupling shaft 1 axle head is fixed with joint ball bearing 4, link to each other with joint ball bearing 4 on the synchronous disk 3 by connecting rod 2, synchronous disk 3 is locked on the spring pressure bar 19 by nut 12, spring housing 10 is fixed on the hub body 5, and spring 18 passes spring pressure bar 19 and places in the spring housing 10.
The advantage that the utility model feather becomes the corner wind-driven generator again is: simple in structure, can realize that the centrifugal force that wind wheel blast and fan blade self rotation is produced offsets, and reaches the purpose that makes wind-driven generator safer; And when changing the wind wheel angle of revolution, also change the propeller pitch angle of fan blade, under high wind speed and fitful wind situation, have the safety speed-limit effect, have the strong wind of resisting ability, guarantee the safer operation of wind energy conversion system.
Description of drawings
Fig. 1 a, b, c are the structural representation that feather becomes the corner wind-driven generator again;
Fig. 2 a, b are sectional view and the structural drawing that feather becomes the corner wind-driven generator again;
Fig. 3 is connected pivot pin angle schematic representation for feather becomes the corner hub of wind power generator again with fan blade;
Fig. 4 a, b, c are that feather becomes the corner hub of wind power generator again and is connected pivot pin angle schematic representation with fan blade.
Embodiment
As shown in Figure 1, three fan blade coupling shafts 1 link to each other with hub body 5 by pivot pin 6, by 6 lock bolts 26 fan blade coupling shaft 1 and pivot pin 6 are locked, three fan blade coupling shafts 1 can rotate freely by relative together hub body 5 with pivot pin 6, fan blade coupling shaft 1 axle head is fixed with joint ball bearing 4, links to each other with joint ball bearing 4 on the synchronous disk 3 by connecting rod 2.Like this, just formed cover lazy-tongs between three fan blade coupling shafts 1 and the synchronous disk 3, the rotatablely moving of fan blade coupling shaft 1 can pass to synchronous disk 3 and become linear reciprocating motions.Synchronous disk 3 is locked on the spring pressure bar 19 (Fig. 2) by nut 12, and 18 compressions of spring pressure bar 19 shell stiff springs form resetting-mechanism.Motor 7 is fixed on the solid of rotation 8, and solid of rotation 8 vertical shaft 14 relatively rotates freely, and vertical shaft 14 is connected by bolt 13 with damping disc 16 interval beams 15, forms damper mechanism, and fan blade coupling shaft 1 links to each other with fan blade 25.
As shown in Figure 2, hub body 5 adopts taper fit to be connected by locking nut 23 with motor shaft 22, spring housing 10 is fixed on the hub body 5, spring 18 is positioned in the spring housing 10, solid of rotation 8 is connected with vertical shaft 14 by metal (upper 20, vertical shaft 14 upper ends are fixed with current collection slip ring 17, are responsible for the motor electricity and transfer out along tower bar 21 inwalls, and damping disc 16 is fixing with tower bar 21 by fixing bolt 27.
As shown in Figure 3, fan blade coupling shaft 1 and the relative wind wheel plane of rotation of hub body pivot pin center of rotation C A angle C degree.
As shown in Figure 4, left figure Fv1 is the blast that the wind speed before the rated wind speed produces, A is a wind wheel rotation horizontal plane, B is the actual plane of rotation of wind wheel, two planes coincide, at this moment wind wheel pounce on wind area maximum, fan blade also is in optimum speed ratio and best lift conditions, therefore wind wheel at this moment is most effective, better generates electricity at the following blower fan of rated wind speed.Middle graph Fv2 is the blast when surpassing rated wind speed, at this moment blast Fv2 forces blade to change the angle of revolution, and blade is because the reposition force of centrifugal force Fb that the deadweight rotation produces and spring makes blade trend wind direction, blast and centrifugal force and spring reset power offset like this, then the load minimum that is subjected to of fan blade 25 and hub body 5.When right figure changed to a certain degree when the angle of revolution of blade, the relative blade tip rolling tangential of fan blade 25 blade tip string heart line D F became negative angle, and then blade loses aerodynamical moment, and wind speed round reduces.When wind speed reduced, blade can be got back to initial position again under the effect of spring reset power.
Claims (2)
1. a feather becomes the corner wind-driven generator again, comprise: generator (7), solid of rotation (8), vertical shaft (14), it is characterized in that: three fan blade coupling shafts (1) of the synchronous reset mechanism that links to each other with generator (7) rotation change angle of revolution scope is 0 °～30 ° in addition, along with the variation of angle of revolution, propeller pitch angle is also correspondingly adjusted in-10 °～+ 10 °.
2. feather according to claim 1 becomes the corner wind-driven generator again, it is characterized in that: described synchronous reset mechanism, comprise: three fan blade coupling shafts (1) link to each other with hub body (5) by pivot pin (6), fan blade coupling shaft (1) axle head is fixed with joint ball bearing (4), link to each other with joint ball bearing (4) on the synchronous disk (3) by lever (2), synchronous disk (3) is locked on the spring pressure bar (19) by nut (12), spring housing (10) is fixed on the hub body (5), and spring (18) passes spring pressure bar (19) and places in the spring housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205084509U CN201753665U (en) | 2010-08-26 | 2010-08-26 | Wind generator with variable blade pitch and variable rotation angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205084509U CN201753665U (en) | 2010-08-26 | 2010-08-26 | Wind generator with variable blade pitch and variable rotation angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201753665U true CN201753665U (en) | 2011-03-02 |
Family
ID=43621397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205084509U Expired - Fee Related CN201753665U (en) | 2010-08-26 | 2010-08-26 | Wind generator with variable blade pitch and variable rotation angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201753665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936260A (en) * | 2010-08-26 | 2011-01-05 | 黄石华科新能源科技有限公司 | Pitch and revolving angle-changing wind power generator |
| CN103206347A (en) * | 2012-01-16 | 2013-07-17 | 住友重机械工业株式会社 | Wind power generation apparatus |
-
2010
- 2010-08-26 CN CN2010205084509U patent/CN201753665U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936260A (en) * | 2010-08-26 | 2011-01-05 | 黄石华科新能源科技有限公司 | Pitch and revolving angle-changing wind power generator |
| CN103206347A (en) * | 2012-01-16 | 2013-07-17 | 住友重机械工业株式会社 | Wind power generation apparatus |
| CN103206347B (en) * | 2012-01-16 | 2015-06-17 | 住友重机械工业株式会社 | Wind power generation apparatus |
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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: 20110302 Termination date: 20150826 |
|
| EXPY | Termination of patent right or utility model |