CN102155355A - Vane pitch automatic adjusting device for wind driven generator - Google Patents
Vane pitch automatic adjusting device for wind driven generator Download PDFInfo
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- CN102155355A CN102155355A CN2010101094741A CN201010109474A CN102155355A CN 102155355 A CN102155355 A CN 102155355A CN 2010101094741 A CN2010101094741 A CN 2010101094741A CN 201010109474 A CN201010109474 A CN 201010109474A CN 102155355 A CN102155355 A CN 102155355A
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- blade
- vane
- joining portion
- wind
- joint end
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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 invention discloses a vane pitch automatic adjusting device for a wind driven generator. The device comprises a hub, at least three vanes, at least three guiding parts and at least three restraint parts, wherein the hub is provided with a body, and at least three joint parts are arranged on the periphery of the hub body; the vanes are provided with a long vane body respectively, one joint end is positioned at one end of the long axis of the vane body and crossly and serially connected with the corresponding joint part; each vane performs linear telescopic displacement between an extending position and a retracting position relative to the hub body along the long axial direction of each vane body; the guiding parts are arranged among the joint end and serially connected joint parts respectively, and are provided with at least one long chute and at least one plug-in board which are mutually clamped and slipped, and ensure that long axes of the chutes are inclined relative to the long axis of the corresponding vane body so as to guide each vane to change pitch angles while performing telescopic displacement; the restraint parts are arranged among the joint end and the joint parts which are serially connected for providing tensile force to maintains the corresponding vane to be positioned on the retracting position. The vane pitch automatic adjusting device has a simple structure, so that the cost is reduced, and possibility of failures is reduced.
Description
Technical field
The present invention is relevant with wind-power electricity generation, particularly about a kind of blade pitch automatic regulating apparatus of wind-driven generator.
Background technique
Wind-power electricity generation is to act on the blade of wind-driven generator by natural wind-force, order about blade rotation and drive generator operation to produce the green energy resource technology of electric power, and from mechanics, between the kind angle of attack of the aerofoil section of blade (angle of attack) and lift coefficient is to have certain relation, when the angle of attack of blade of wind-driven generator reaches to a certain degree, lift coefficient is increased to it to greatest extent, and generation stall (stall) phenomenon, the air-flow of blade surface of also promptly flowing through is peeled off and flow-disturbing is taken place, though the blade of this moment is not had a lift effect, but drag effect still exists, be with, blade promptly must make the chord length line (chord line) of blade front and rear edge binding and the angle (being the angle of attack) between the wind be maintained in the suitable operating range if wish to get lift.
Because the wind speed of natural wind is also unstable, cause the blade rotational speed of wind-driven generator also to change thereupon, generally speaking, when the rotating speed of blade is lower than rated speed, the high more then pitch of rotating speed (pitch) angle is more little can to obtain preferable lift more, therefore, in the prior art, particularly in the large-scale wind driven generator technology category, promptly utilize pitch control (pitch control, or claim swing angle to control) device, the angle of pitch by changing blade is guaranteed the existence of lift effect so that the angle of attack is maintained in the suitable operating range.
And above-mentioned pitch control gear, with in the technology in then as No. 6465901 patent of the U.S. or No. 097140081 application for a patent for invention case of TaiWan, China as the exposure, all need possess just like power sources such as motors, be arranged at wheel hub (hub) inside, and drive the blade rotation with suitable transmission component, to change the pitch angle of blade, to reach the effect of adjusting the angle of attack; Only, above-mentioned known technology is because member is numerous and diverse and be large enough to hold condition into necessity with the wheel hub inner space, therefore, vertically can be applied to large-scale wind driven generator, and non-medium and small wind-driven generator can be used.
Summary of the invention
Main purpose of the present invention is to provide a kind of blade pitch automatic regulating apparatus of wind-driven generator, and it need not to be provided with extra dynamical element can change the angle of pitch of adjusting blade automatically.
In order to reach above-mentioned purpose, the blade pitch automatic regulating apparatus of wind-driven generator provided by the present invention, it includes:
One wheel hub has a hub body, and at least three joining portion are all sides that branch is located at this hub body;
At least three blades have a microscler blade respectively, and a joint end is to be positioned at this blade major axis one end, and the joining portion corresponding with the ground serial connection combination that overlaps, with so that respectively this blade be combined on this wheel hub;
Respectively this blade is respectively must be along the long axis direction of this blade respectively, separately with respect to this hub in one stretch out and a retracted position between be linear telescopic displacement;
And also include:
At least three lead portion, be be located at a joint end respectively and the joining portion that is connected in series between, have separately and be at least one microscler chute and at least one slotting body that mutual inlay card slips, divide and be located in opposite directions between end face of this joint end and this joining portion, and the major axis that makes this chute is oblique with respect to the blade major axis of correspondence, in order to guiding respectively this blade in telescopic displacement, change the angle of pitch;
At least three restrain part, are that branch is located between the joint end and joining portion that is serial connection each other, are positioned on this retracted position to keep corresponding blade in order to pulling force to be provided.
Each described joining portion is to be poroid, and be plugged in wherein by a corresponding joint end.
Each is described, and to lead the chute quantity that portion has be to be respectively a pair of, and divide with being mutually symmetrical and be located at corresponding joint end in opposite directions on the side of this joining portion hole wall, and respectively this slotting body quantity of leading that portion has is to be respectively a pair of, and be based in separately on the hole wall at corresponding joining portion, and slip in the chute of correspondence with the end end intercalation of projection.
Each described chute is to separate into one in regular turn along long axis direction respectively to be adjacent to reverse section of joint end free end end, and one with the reverse section forward section that is connected, and make that respectively this slope of forward and reverse section is different each other.
Each described contained part is to be respectively extension spring.
Beneficial effect of the present invention: the blade pitch automatic regulating apparatus of wind-driven generator provided by the present invention is to utilize centrifugal force that the angle of pitch of blade is produced self-adjusting effect, with respect to for technology, the formation of its part is simplified, and need not complicated structures such as extra electric controller and power source, except that can reducing cost, more lowered the possibility of fault and improved reliability.
Description of drawings
Below, lift a preferred embodiment of the present invention now, and cooperate graphic being described further, wherein:
Fig. 1 is the stereo appearance figure of a preferred embodiment of the present invention;
Fig. 2 is the exploded view of a preferred embodiment of the present invention;
Fig. 2 A is an A place enlarged view among Fig. 2;
Fig. 3 is the action plane schematic representation of a preferred embodiment of the present invention, is to show the not state of expanding-contracting action of blade;
Fig. 4 is the action plane schematic representation of a preferred embodiment of the present invention, is the different visual angles view of demonstration and Fig. 3 equal state;
Fig. 5 is the action plane schematic representation of a preferred embodiment of the present invention, is to show the protruding operating state that is moved to the stage casing of blade;
Fig. 6 is the action plane schematic representation of a preferred embodiment of the present invention, is the different visual angles view of demonstration and Fig. 5 equal state;
Fig. 7 is the action plane schematic representation of a preferred embodiment of the present invention, is to show the protruding operating state that is moved to back segment of blade;
Fig. 8 is the action plane schematic representation of a preferred embodiment of the present invention, is the different visual angles view of demonstration and Fig. 7 equal state.
Embodiment
See also Fig. 1 to shown in Figure 8, the blade pitch automatic regulating apparatus 10 of the wind-driven generator that provides in a preferred embodiment of the present invention, it mainly leads portion 40 by a wheel hub 20, three blades 30, three and three contained parts 50 are formed, wherein:
Each blade 30 is the blades 31 that have a suitable length and aerofoil profile respectively, the joint end 32 of one tubulose is in coaxial mode in these blade 31 major axis, be shaped on major axis one end of this blade 31, and be plugged in the pore of a corresponding tubular engagement section 23 with the free end end coaxially, but be connected in series and relative displacement and overlap with corresponding engagement portion 23, in order to do making respectively this blade 30 must be with it along blade 31 long axis directions separately, with respect to this wheel hub 20 in one stretch out and a retracted position between be the telescopic displacement of linearity.
Respectively this is led 40 in portion and is located at respectively to be each other 32 of the joining portion 23 of pegging graft and joint ends, in order to guide corresponding blade 30 when carrying out this telescopic displacement, changed the angle of pitch of blade, the chute 41 that has a pair of strip separately is the both sides tube walls that run through corresponding joint end 32 respectively with being mutually symmetrical, and make chute 41 major axis be oblique extension with respect to blade 31 major axis, it is to be installed on the relative position of the inboard hole wall of corresponding joining portion 23 pores with an end respectively coaxially to each other that pair of columnar is inserted body 42, and hold with other in the chute 41 of insertion correspondence, and with to chute 41 be the state of slipping, in view of the above, when respectively this blade 30 is at telescopic displacement, be to make each slotting body 42 produce relative displacement synchronously with one another with the gliding mass 41 that is slipped; And wherein, each chute 41 is further separated into one along self long axis direction to be adjacent to reverse section 411 of joint end 32 free end ends in order, an and forward section 412 that is connected with this backward end, and make each forward and reverse section 412,411 and be oblique slope with respect to blade 31 major axis, different each other.
Each contained part 50 is made of at least one extension spring respectively, and be installed with in the inside pore of a corresponding joint end 32 separately, and do not show the structure of its connection respectively mutually in the map interlinking with wheel hub 20 and corresponding blade 30 with two ends, only this is the general spring technique for fixing of usefulness, promptly be not statement in addition at this, in order to a flexible binding force to be provided, making respectively, this blade 30 flexibly is maintained on this retracted position.
The blade pitch automatic regulating apparatus 10 of this wind-driven generator is to be used on the wind-driven generator, and by above-mentioned composition, when air-flow acts on each blade 30 and when wheel hub 20 is rotated, will change with the height of rotating speed because of rotating the centrifugal force that is produced, therefore, when rotating speed is high more, bigger centrifugal force can act on each blade 30, when centrifugal force greater than respectively should restrain the pulling force that part 50 produced the time, respectively this blade 30 promptly outwards moves start toward this extended position axis of orientation from this retracted position thereupon, the degree of its displacement also is directly proportional with the size of centrifugal force, in view of the above, when the rotating speed of this blade 30 respectively is in rated speed, action of centrifugal force is to make that respectively this blade 30 is protruding, and simultaneously by the forward section 412 of this guide groove respectively and the angle of pitch of slotting each blade 30 of body 42 synchronous changes that is slipped, and can reach the effect of automatically adjusting blade pitch angle with rotation speed change, thereby the angle of attack that can make blade is maintained in the suitable operating range, avoid the situation generation ， Ci Department of stall can see also Fig. 5 and shown in Figure 6 according to this;
See also Fig. 7 and shown in Figure 8 again, when the rotating speed of blade 30 is higher than rated speed, its suffered centrifugal force is that more aforesaid situation is for high, and make that the protruding shift length of blade 30 is bigger, hereat, respectively respectively guiding of being provided of this blade 30 of 40 pairs in portion is provided for this, promptly provide a reverse pitch adjustment by this reverse section 411, the angle of pitch that changes each blade avoids blade 30 to produce excessive rotating speed, to guarantee the Security of element to reduce the lift that air-flow is produced blade 30 according to this.
To sum up institute is old, the blade pitch automatic regulating apparatus 10 of wind-driven generator provided by the present invention is to utilize centrifugal force that the angle of pitch of blade is produced self-adjusting effect, with respect to for technology, the formation of its part is simplified, and need not complicated structures such as extra electric controller and power source, except that can reducing cost, more lower the possibility of fault and improved reliability, its effect is showing from belonging to.
Claims (5)
1. the blade pitch automatic regulating apparatus of a wind-driven generator, it includes:
One wheel hub has a hub body, and at least three joining portion are all sides that branch is located at this hub body;
At least three blades have a microscler blade respectively, and a joint end is to be positioned at this blade major axis one end, and the joining portion corresponding with the ground serial connection combination that overlaps, with so that respectively this blade be combined on this wheel hub;
It is characterized in that:
Respectively this blade is respectively must be along the long axis direction of this blade respectively, separately with respect to this hub in one stretch out and a retracted position between be linear telescopic displacement;
And also include:
At least three lead portion, be be located at a joint end respectively and the joining portion that is connected in series between, have separately and be at least one microscler chute and at least one slotting body that mutual inlay card slips, divide and be located in opposite directions between end face of this joint end and this joining portion, and the major axis that makes this chute is oblique with respect to the blade major axis of correspondence, in order to guiding respectively this blade in telescopic displacement, change the angle of pitch;
At least three restrain part, are that branch is located between the joint end and joining portion that is serial connection each other, are positioned on this retracted position to keep corresponding blade in order to pulling force to be provided.
2. the blade pitch automatic regulating apparatus of wind-driven generator according to claim 1, it is characterized in that: each described joining portion is to be poroid, and be plugged in wherein by a corresponding joint end.
3. the blade pitch automatic regulating apparatus of wind-driven generator according to claim 2, it is characterized in that: each is described, and to lead the chute quantity that portion has be to be respectively a pair of, and divide with being mutually symmetrical and be located at corresponding joint end in opposite directions on the side of this joining portion hole wall, and respectively this slotting body quantity of leading that portion has is to be respectively a pair of, and be based in separately on the hole wall at corresponding joining portion, and slip in the chute of correspondence with the end end intercalation of projection.
4. according to the blade pitch automatic regulating apparatus of claim 1 or 3 described wind-driven generators, it is characterized in that: each described chute is to separate into one in regular turn along long axis direction respectively to be adjacent to reverse section of joint end free end end, and one with the reverse section forward section that is connected, and make that respectively this slope of forward and reverse section is different each other.
5. the blade pitch automatic regulating apparatus of wind-driven generator according to claim 2, it is characterized in that: each described contained part is to be respectively extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101094741A CN102155355A (en) | 2010-02-12 | 2010-02-12 | Vane pitch automatic adjusting device for wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101094741A CN102155355A (en) | 2010-02-12 | 2010-02-12 | Vane pitch automatic adjusting device for wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102155355A true CN102155355A (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101094741A Pending CN102155355A (en) | 2010-02-12 | 2010-02-12 | Vane pitch automatic adjusting device for wind driven generator |
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| CN (1) | CN102155355A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269119A (en) * | 2011-08-22 | 2011-12-07 | 朱克彦 | Impellor of self-regulating wind driven generator |
| CN107061145A (en) * | 2017-06-05 | 2017-08-18 | 哈尔滨工程大学 | Wave of the sea energy wind-energy collecting device |
| CN110030156A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | Automatic pitch-controlled system with counter weight device |
| CN110030154A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | A kind of resilient movement steering system |
| CN110030149A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | A kind of resilient movement steering system with counter weight device |
| CN112455649A (en) * | 2020-11-26 | 2021-03-09 | 广东国士健科技发展有限公司 | Translational wing aircraft adjusting structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010013703A1 (en) * | 2000-02-16 | 2001-08-16 | Valere Croes | Device for using wind power or generating wind and pitch system for such a device |
| GB2371837A (en) * | 2000-12-19 | 2002-08-07 | Pro Design Solutions Ltd | Pitch adjustment mechanism |
| JP2004060646A (en) * | 2002-06-05 | 2004-02-26 | Furukawa Co Ltd | Starting wind speed reducing device for wind mill |
-
2010
- 2010-02-12 CN CN2010101094741A patent/CN102155355A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010013703A1 (en) * | 2000-02-16 | 2001-08-16 | Valere Croes | Device for using wind power or generating wind and pitch system for such a device |
| GB2371837A (en) * | 2000-12-19 | 2002-08-07 | Pro Design Solutions Ltd | Pitch adjustment mechanism |
| JP2004060646A (en) * | 2002-06-05 | 2004-02-26 | Furukawa Co Ltd | Starting wind speed reducing device for wind mill |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269119A (en) * | 2011-08-22 | 2011-12-07 | 朱克彦 | Impellor of self-regulating wind driven generator |
| CN107061145A (en) * | 2017-06-05 | 2017-08-18 | 哈尔滨工程大学 | Wave of the sea energy wind-energy collecting device |
| CN110030156A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | Automatic pitch-controlled system with counter weight device |
| CN110030154A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | A kind of resilient movement steering system |
| CN110030149A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | A kind of resilient movement steering system with counter weight device |
| CN112455649A (en) * | 2020-11-26 | 2021-03-09 | 广东国士健科技发展有限公司 | Translational wing aircraft adjusting structure |
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Application publication date: 20110817 |