CN102042176B - Constant speed wind driven generator with self-adjusting blade angle - Google Patents
Constant speed wind driven generator with self-adjusting blade angle Download PDFInfo
- Publication number
- CN102042176B CN102042176B CN2009101971863A CN200910197186A CN102042176B CN 102042176 B CN102042176 B CN 102042176B CN 2009101971863 A CN2009101971863 A CN 2009101971863A CN 200910197186 A CN200910197186 A CN 200910197186A CN 102042176 B CN102042176 B CN 102042176B
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- blade
- rotor
- generator
- rocking arm
- constant speed
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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
Abstract
The invention relates to a constant speed wind driven generator with a self-adjusting blade angle. The constant speed wind driven generator comprises a generator system and a rotor system, wherein the rotor system consists of a rotor seat, a plurality of blade groups and an adjusting dish; each blade group consists of a blade, a short shaft, a rocker arm and a compression spring; the short shaft is arranged on a bearing seat of the rotor seat; one side of the short shaft is connected with the blade, and the other side of the short shaft is connected with the rocker arm; the compression spring is positioned between the concave outer edge surface of the rocker arm and the end face of the rotor seat; the adjusting dish has a bowl shape; the adjusting dish and the rotor of the generator system are formed into a helical pair; and the adjusting dish automatically adjusts the blade angle. In the generator provided by the invention, the blade angle of the blade has the maximum tangental angle under the action of the compression spring when the blade is started or rotated at low speed, higher wind energy can be obtained, and the rotation speed can be further improved. When the rotation speed of the blade exceeds a certain value, the adjusting dish slips along a transmission thread under the action of centrifugal force, the bowl outer edge of the adjusting dish overcomes the spring force to compress the rocker arm to drive the blade to rotate so as to reduce the tangental angle of the blade, and a fan is operated at constant speed.
Description
Technical field
The present invention relates to a kind of wind power generator rotor system, more specifically to a kind of constant speed wind-driven generator of generator adjusting blade angle by self.
Background technique
The outstanding difficulty that the wind motor technical field faces is exactly that the wind speed wind energy changed is lacked to effective capture ability, thereby has restricted the usage space of wind energy conversion system.Common-sense principle according to the relevant aerofoil profile of aerodynamics and lift, we know: the blade certain for aerofoil profile, under the certain prerequisite of wind speed, changes the angle of attack of blade, ratio of lift coefficient to drag coefficient that can the synchronous change blade and slurry square, but ratio of lift coefficient to drag coefficient is relevant with the rotating speed of blade again with the slurry square while.Our experiments show that when blade keeps the large angle of attack, it produces larger rotation torque under low wind friction velocity, but in the very large resistive torque of the next generation of high wind speed condition, it in fact becomes the resistance that hinders the rotor rotation; Same when blade keeps Low Angle Of Attack, its can produce very large lift moment of torsion and less resistive torque under the high wind speed condition, but it can only produce very little rotation torque under low wind friction velocity, very limited to the startup help of rotor.But existing fan rotor blade is mostly the fixedly angle of attack, can't effectively utilize the wind speed wind energy.
Summary of the invention
The objective of the invention is provides a kind of simple in structure, constant speed wind-driven generator that can effectively utilize the generator adjusting blade angle by self of wind speed wind energy for the prior art deficiency.
The objective of the invention is to realize by following measures: a kind of constant speed wind-driven generator of generator adjusting blade angle by self, it comprises generator system, rotor-support-foundation system, and its special way is, and described rotor-support-foundation system is comprised of rotator seat, some blade groups, adjustment disk, rotator seat is comprised of some bearing supports that axle sleeve and end face are provided with the Central Symmetry layout, described blade group is by blade, minor axis, rocking arm, stage clip forms, described minor axis is arranged on the bearing support of rotator seat, minor axis one side is fixedly connected with blade by key, the minor axis opposite side is fixedly connected with rocking arm by key, described rocker body is " S " shape, the convex outer fringe surface of rocking arm one side touches mutually with the rotator seat end face, between the concavity outer fringe surface of rocking arm opposite side and rotator seat end face, be provided with stage clip, described adjustment disk is bowl-shape, its place, axle center is provided with cloudy motion thread, bowl-shape inner cylinder and rotator seat axle sleeve outer rim match, described rotator seat axle sleeve is fixedly connected with by key with the generator system rotor, the overhanging end that the generator system rotor stretches out the rotor cover for seat is positive motion thread, it is corresponding with the cloudy motion thread in place, adjustment disk axle center, the cloudy motion thread of adjustment disk and generator system rotor sun motion thread form screw pair, and the rocking arm of the bowl-shape the rim of a bowl outer rim of adjustment disk and each blade group is on the cylinder of same diameter.
Described some blade groups are three blade groups.
Between the concavity outer fringe surface of described rocking arm opposite side and rotator seat end face, be provided with stage clip, concavity outer fringe surface and the rotator seat end face of rocking arm are equipped with flange, and stage clip end cover for seat is on two flanges.
Compared with prior art, constant speed wind-driven generator due to the generator adjusting blade angle by self that has adopted the present invention to propose, the generator blade is adjustment disk and blade composition separated state when starting, blade leaf angle is in maximum corner cut under the effect of stage clip, be convenient to obtain larger wind energy, when reaching after certain rotating speed under the effect of adjustment disk at centrifugal force along the motion thread slippage, its rim of a bowl outer rim overcomes spring force compressing rocking arm and drives blade and rotate and reduce the blade corner cut, makes blower fan turn round under constant rotating speed.Modern design of the present invention, simple in structure, fabricating cost is low, is conducive to penetration and promotion.
The accompanying drawing explanation:
Fig. 1 is the example structure schematic diagram that the present invention proposes.
Fig. 2 is Fig. 1 embodiment leaf-group structure broken away view.
Fig. 3 is adjustment disk adjusting rock arm schematic diagram.
Embodiment:
Below in conjunction with accompanying drawing, embodiment is elaborated:
Fig. 1～Fig. 2 shows it is the example structure schematic diagram that the present invention proposes.In figure, a kind of constant speed wind-driven generator of generator adjusting blade angle by self, it comprises generator system, rotor-support-foundation system, described rotor-support-foundation system is comprised of rotator seat 1, some blade groups 2, adjustment disk 3.Rotator seat 1 is comprised of some bearing supports 12 that axle sleeve 11 and end face are provided with the Central Symmetry layout, and axle bed number of the present invention is 3.Described blade group 2 is also 3, it is comprised of blade 21, minor axis 22, rocking arm 23, stage clip 24, described minor axis 22 is arranged on the bearing support 12 of rotator seat, minor axis 22 1 sides are fixedly connected with blade 21 by key, minor axis 22 opposite sides are fixedly connected with rocking arm 23 by key, and the corner cut of blade also changes thereupon when rocking arm rotates.Described rocker body is " S " shape; the convex outer fringe surface of rocking arm 23 1 sides touches mutually with rotator seat 1 end face; between the concavity outer fringe surface of rocking arm 23 opposite sides and rotator seat end face, be provided with stage clip 24; in this example, the concavity outer fringe surface of rocking arm and rotator seat end face are equipped with flange, stage clip end cover for seat is on two flanges.Stage clip is difficult for displacement like this.Described adjustment disk 3 is bowl-shape, and its place, axle center is provided with cloudy motion thread, and bowl-shape inner cylinder and rotator seat axle sleeve outer rim match, accessible when move along the rotator seat shaft axis adjustment disk position.Described rotator seat axle sleeve is fixedly connected with by key with the generator system rotor, the overhanging end that the generator system rotor stretches out the rotor cover for seat is positive motion thread, it is corresponding with the cloudy motion thread in place, adjustment disk axle center, the cloudy motion thread of adjustment disk and generator system rotor sun motion thread form screw pair 31, and the rocking arm of the bowl-shape the rim of a bowl outer rim of adjustment disk and each blade group is on the cylinder of same diameter.The fan blade sheet start or wind speed hour, adjustment disk and vane group composition are from state, blade angle is in maximum corner cut under the effect of stage clip, be convenient to like this obtain larger wind energy, after absorbing, wind energy improves rotating speed, when reaching after certain rotating speed under the effect of adjustment disk at centrifugal force along the motion thread slippage, its the rim of a bowl outer rim overcomes spring force compressing rocking arm drive blade rotation and reduces the blade corner cut, do not make the generator hypervelocity and make its deceleration, otherwise when rotating speed is worth lower than certain, adjustment disk centrifugal force reduces, adjustment disk can discharge rocking arm makes it under the elastic force of stage clip, rotate, increase the blade corner cut, absorbing wind energy raising rotor speed makes generator turn round under constant rotating speed.
Above-described embodiment is not construed as limiting the invention, and all employings are equal to replaces or technological scheme that the form of equivalent transformation obtains, within all dropping on protection scope of the present invention.
Claims (3)
1. the constant speed wind-driven generator of a generator adjusting blade angle by self, it comprises generator system, rotor-support-foundation system, it is characterized in that, described rotor-support-foundation system is comprised of rotator seat, some blade groups, adjustment disk, rotator seat is comprised of some bearing supports that axle sleeve and end face are provided with the Central Symmetry layout, described blade group is by blade, minor axis, rocking arm, stage clip forms, described minor axis is arranged on the bearing support of rotator seat, minor axis one side is fixedly connected with blade by key, the minor axis opposite side is fixedly connected with rocking arm by key, described rocking arm is " S " shape, the convex outer fringe surface of rocking arm one side touches mutually with the rotator seat end face, between the concavity outer fringe surface of rocking arm opposite side and rotator seat end face, be provided with stage clip, described adjustment disk is bowl-shape, its place, axle center is provided with cloudy motion thread, bowl-shape inner cylinder and axle sleeve outer rim match, described axle sleeve is fixedly connected with by key with the generator system rotor, the overhanging end that the generator system rotor stretches out axle sleeve is positive motion thread, it is corresponding with the cloudy motion thread in place, adjustment disk axle center, the cloudy motion thread of adjustment disk and generator system rotor sun motion thread form screw pair, and the rocking arm of the bowl-shape the rim of a bowl outer rim of adjustment disk and each blade group is on the cylinder of same diameter.
2. the constant speed wind-driven generator of generator adjusting blade angle by self according to claim 1, is characterized in that described some blade groups are three blade groups.
3. the constant speed wind-driven generator of generator adjusting blade angle by self according to claim 1, is characterized in that the concavity outer fringe surface of described rocking arm and rotator seat end face are equipped with flange, and stage clip two ends seat is enclosed within respectively on two flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101971863A CN102042176B (en) | 2009-10-15 | 2009-10-15 | Constant speed wind driven generator with self-adjusting blade angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101971863A CN102042176B (en) | 2009-10-15 | 2009-10-15 | Constant speed wind driven generator with self-adjusting blade angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102042176A CN102042176A (en) | 2011-05-04 |
| CN102042176B true CN102042176B (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101971863A Expired - Fee Related CN102042176B (en) | 2009-10-15 | 2009-10-15 | Constant speed wind driven generator with self-adjusting blade angle |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488032B (en) * | 2018-04-08 | 2019-06-28 | 王从相 | A kind of wind power generating wind wheel device |
| CN110242500A (en) * | 2019-07-02 | 2019-09-17 | 中国大唐集团新能源科学技术研究院有限公司 | Wind energy conversion system vane change device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1340662A (en) * | 2000-08-26 | 2002-03-20 | 张近锡 | Motive power generating device by use of wind force |
| CN2546647Y (en) * | 2002-03-28 | 2003-04-23 | 哈尔滨工程大学 | Self-stabilizing speed wind wheel for small wind power generator |
| CN2782976Y (en) * | 2005-01-07 | 2006-05-24 | 曹海珠 | Automatic vane adjusting speed limiter for small wind driven power generator |
| CN101520023A (en) * | 2009-03-26 | 2009-09-02 | 徐剑雄 | Variable propeller pitch wind wheel of wind powered generator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57191475A (en) * | 1981-05-22 | 1982-11-25 | Hitachi Ltd | Pitch controlling mechanism for wind power generator |
| NZ555848A (en) * | 2007-06-12 | 2010-04-30 | Storm Rider Holdings Ltd | Improved wind generator |
-
2009
- 2009-10-15 CN CN2009101971863A patent/CN102042176B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1340662A (en) * | 2000-08-26 | 2002-03-20 | 张近锡 | Motive power generating device by use of wind force |
| CN2546647Y (en) * | 2002-03-28 | 2003-04-23 | 哈尔滨工程大学 | Self-stabilizing speed wind wheel for small wind power generator |
| CN2782976Y (en) * | 2005-01-07 | 2006-05-24 | 曹海珠 | Automatic vane adjusting speed limiter for small wind driven power generator |
| CN101520023A (en) * | 2009-03-26 | 2009-09-02 | 徐剑雄 | Variable propeller pitch wind wheel of wind powered generator |
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| CN102042176A (en) | 2011-05-04 |
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