CN201739081U - Torsion spring pitch-regulating mechanism for miniature wind generator - Google Patents
Torsion spring pitch-regulating mechanism for miniature wind generator Download PDFInfo
- Publication number
- CN201739081U CN201739081U CN2010202438959U CN201020243895U CN201739081U CN 201739081 U CN201739081 U CN 201739081U CN 2010202438959 U CN2010202438959 U CN 2010202438959U CN 201020243895 U CN201020243895 U CN 201020243895U CN 201739081 U CN201739081 U CN 201739081U
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- wind
- bevel gear
- wind turbine
- hub
- torsion spring
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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 discloses a torsion spring pitch-regulating mechanism for a miniature wind generator. The pitch-regulating mechanism comprises a hub; a power shaft is fixedly connected with the exterior of the hub; a torsion bar is rotationally mounted in the center of the hub and is sleeved by a torsion spring; a central bevel gear is mounted on the torsion bar in the hub; three output shafts are distributed at the circumference of the hub in a stellated manner; a bevel gear is mounted at one end of each output shaft and is in meshed transmission with the central bevel gear; and wind turbine blades are fixedly connected with the other ends of the output shafts. In the utility model, the wing surface attack angles of the wind turbine blades are changed when the wind speed is increased, and the torsion angle of the torsion spring is changed due to the changes of the wing surface attack angles of the wind turbine blades; and when the wind speed is reduced, the reset force of the torsion spring drives the bevel gear transmission system to rotate the wind turbine blades back to the original windward angles, so as to realize the pitch-regulating cycle of the wind turbine.
Description
Technical field
The utility model relates to the wind-driven generator field, specifically is the torque spring blade pitch device of micro wind turbine generator.
Background technique
Drive wind-driven generator rotation formation generating by the fan blade that wind energy is converted to mechanical energy through speed regulating mechanism, current fan blade mainstream technology requires fan blade just can start (3s/m) under low wind speed, can bear the destruction that is higher than the 25s/m blast, can be higher than under the condition of rated wind speed, fan blade has the function of adjusting wind speed round.Wind-driven generator is divided in the design of blade system usually to be decided the slurry type and becomes slurry type two big series, because it is simple in structure to decide slurry type blade system, so generally adopted, become slurry type blade system because complex structure only just has employing in the large-scale wind driven generator blade system.Because the volume and the space of micro wind turbine generator (power section below 1000 watts) are limit, domestic up till now as yet discovery will become pulp grinder structure device and design in the product of micro wind turbine generator.
Micro wind turbine generator will become slurry type mechanism and be applied to will be significant to promoting China technical grade, the particularly reliability and the Security of universal wind-driven generator (wind light mutual complementing) street lamp of raising miniature and small-sized wind power generator in the wind wheel design.Passive change slurry type wind wheel is under the unnatural wind speed weather conditions; fan blade can change the angle of facining the wind of blade automatically with the size of wind speed; its angle of facining the wind can linear state adjustment with the change of wind-force; the test proof: the wind energy that the blade of passive change slurry type wind wheel not only can be caught under the little general mood time condition is used for generating electricity; and can be under the unnatural wind speed weather conditions; along with fan blade the reducing of angle that facing the wind; the stressed area of contour of wind wheel aerofoil is therefore along with minimizing; wind wheel can not only continue to keep the state that facings the wind; speed also can keep rated wind speed simultaneously; make unit keep uninterruptable power generation; wind wheel has at utmost utilized wind energy; and need not as deciding slurry type wind wheel to protecting unit safety, system start-up lateral deviation program.The enforcement of the above-mentioned innovative point of the utility model will make in the micro wind turbine generator product of the same type at home, quality, the technical merit level that is in a leading position.
The model utility content
The purpose of this utility model provides a kind of torque spring blade pitch device of micro wind turbine generator, and the increase of wind speed and the fan blade aerofoil angle of attack produce to be changed, the change of the fan blade aerofoil angle of attack produce the torsion angle of torsion spring to change; When wind speed reduces, the reposition force of torsion spring drives bevel gear drive system changes the fan blade angular convolution that facings the wind, and fan blade becomes the cycle of slurry motion to be realized.
The technical solution of the utility model is as follows:
The torque spring blade pitch device of micro wind turbine generator, include wheel hub, the outer fixing of wheel hub is connected with line shaft, described wheel hub center is rotatablely equipped with torsion bar, the torsion bar outside is set with torque spring, is positioned on the torsion bar of wheel hub center bevel gear is installed, and the circumferential star of wheel hub is distributed with three radially output shafts, one end of output shaft is equipped with bevel gear and described center bevel gear transmission engagement, and the other end is fixedly connected with the fan blade of blower fan.
Be different from the mounting structure of deciding slurry type fan blade, becoming slurry type fan blade is not once to be fixed in the wind wheel wheel hub, and being installed and connected in the wind wheel wheel hub that linkage rotates, the petiole of fan blade radially is the transmission shaft that star distributes, the end of power train connects spring and determines angle position (the original angle that facings the wind of fan blade), and the spring the other end is fixed in wheel hub.Fan blade wind-engaging aerofoil rotates under the effect of unnatural wind speed wind-force, thereby changes the angle of facining the wind of fan blade aerofoil.After changing the angle of facining the wind of fan blade aerofoil, the area of its wind-engaging projection aerofoil reduces, and after wind-receiving face reduced, the turned moment of its acceptance also adapted and reduces.Fan blade wind-engaging aerofoil under the effect of unnatural wind speed wind-force, rotate the rear driving spring, store the moment of rotation energy, when wind-force reduces, spring releases energy, with moment of rotation oppositely passback give fan blade, make that fan blade is proportional to be resetted, until the state that is returned to original fixed.
It is exactly wind-force that the utility model drives the facing the wind motive force at angle of fan blade, spring torsion is designed to wind wheel limit wind-force 1.1 times of rated wind speed, under these technical specifications, wind-driven generator can become slurry, when meteorological wind-force is worth greater than this, under the promotion of crossing wind speed wind-force, the warping force that fan blade will overcome former design torque spring deflects, the angle thereby the original installation of change fan blade is facingd the wind; Design becomes slurry synchronously in order to make three fan blades, and three fan blades are arranged on one on the standard pitch circle of a center cone gear.Since spring force with change the linear relationship that torsion angle keeps, the angle of attack of fan blade is also with the change of the big or small linear state of wind-force;
The rotating speed and the wind-force of wind-driven generator are proportional, the big more rotating speed of wind-force is high more, but after changing the angle that facings the wind of fan blade, can adjust the blowing area of fan blade, thereby change the blowing area of fan blade reality, reach the rotating speed after fan blade is adjusted wind-driven generator input wind-force.Wind turbines rotor can keep the best angle that facings the wind at 1.1 times below the rated wind speed, but when the angle changes with the wind-force increasing owing to facing the wind, the effective wind of input wind wheel but can remain on specified wind-force, and the rotating speed of wind-driven generator remains unchanged, and the efficient of wind-driven generator is improved.
When wind speed less than safety value (less than the torsion of spring design), spring releases energy simultaneously, the torsion that spring releases energy drives aforesaid Transmitted chains more in the other direction makes fan blade be reset to the original angle of facining the wind.Spring windup-degree, fan blade fan blade under the unnatural wind speed angle (become blade angle degree) of facining the wind is directly proportional with the thrust of unnatural wind speed, unnatural wind speed thrust is big more, fan blade becomes the blade angle degree and the spring windup-degree is just big more, along with reducing of wind speed, the resilience of spring phase ratio, also phase ratio revolution of fan blade, until when wind speed meets rated wind speed, spring reset is to original shape, and fan blade also returns to original setting angle, and the overall process that becomes slurry is finished.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, the torque spring blade pitch device of micro wind turbine generator, include wheel hub 1, the outer fixing of wheel hub 1 is connected with line shaft 2, and wheel hub 1 center is rotatablely equipped with torsion bar 3, and torsion bar 3 outsides are set with torque spring 4, be positioned on the torsion bar 3 of wheel hub 1 center bevel gear 5 is installed, wheel hub 1 circumferential star is distributed with three radially output shafts 6, and an end of output shaft 6 is equipped with bevel gear 7 and center bevel gear 5 transmissions engagement, and the other end is fixedly connected with the fan blade 8 of blower fan.
Claims (1)
1. the torque spring blade pitch device of micro wind turbine generator, include wheel hub, the wheel hub outer fixing is connected with line shaft, it is characterized in that: described wheel hub center is rotatablely equipped with torsion bar, the torsion bar outside is set with torque spring, is positioned on the torsion bar of wheel hub center bevel gear is installed, and the circumferential star of wheel hub is distributed with three radially output shafts, one end of output shaft is equipped with bevel gear and described center bevel gear transmission engagement, and the other end is fixedly connected with the fan blade of blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202438959U CN201739081U (en) | 2010-06-30 | 2010-06-30 | Torsion spring pitch-regulating mechanism for miniature wind generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202438959U CN201739081U (en) | 2010-06-30 | 2010-06-30 | Torsion spring pitch-regulating mechanism for miniature wind generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739081U true CN201739081U (en) | 2011-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202438959U Expired - Fee Related CN201739081U (en) | 2010-06-30 | 2010-06-30 | Torsion spring pitch-regulating mechanism for miniature wind generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739081U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146881A (en) * | 2011-04-22 | 2011-08-10 | 江阴江源新能源科技有限公司 | Intelligent flexible pitch-changing device for wind power generator |
| CN103790776A (en) * | 2012-11-01 | 2014-05-14 | 唐安祥 | Independent variable-pitch wind turbine for wind generating sets |
| CN110425081A (en) * | 2019-08-30 | 2019-11-08 | 王少华 | A kind of wind-force conversion power wheel and a kind of wind aerator |
| CN111472933A (en) * | 2020-04-03 | 2020-07-31 | 贵州电网有限责任公司 | Small wind driven generator |
| CN111594380A (en) * | 2020-04-03 | 2020-08-28 | 贵州电网有限责任公司 | Small-size aerogenerator aircraft nose of variable oar |
| CN112610418A (en) * | 2020-12-10 | 2021-04-06 | 刘明 | New forms of energy are with high-efficient collection device of wind energy that has anti-wind ability |
-
2010
- 2010-06-30 CN CN2010202438959U patent/CN201739081U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146881A (en) * | 2011-04-22 | 2011-08-10 | 江阴江源新能源科技有限公司 | Intelligent flexible pitch-changing device for wind power generator |
| CN102146881B (en) * | 2011-04-22 | 2013-03-06 | 江阴江源新能源科技有限公司 | Intelligent flexible pitch-changing device for wind power generator |
| CN103790776A (en) * | 2012-11-01 | 2014-05-14 | 唐安祥 | Independent variable-pitch wind turbine for wind generating sets |
| CN110425081A (en) * | 2019-08-30 | 2019-11-08 | 王少华 | A kind of wind-force conversion power wheel and a kind of wind aerator |
| CN111472933A (en) * | 2020-04-03 | 2020-07-31 | 贵州电网有限责任公司 | Small wind driven generator |
| CN111594380A (en) * | 2020-04-03 | 2020-08-28 | 贵州电网有限责任公司 | Small-size aerogenerator aircraft nose of variable oar |
| CN111594380B (en) * | 2020-04-03 | 2022-04-15 | 贵州电网有限责任公司 | Small-size aerogenerator aircraft nose of variable oar |
| CN111472933B (en) * | 2020-04-03 | 2022-05-20 | 贵州电网有限责任公司 | Small wind driven generator |
| CN112610418A (en) * | 2020-12-10 | 2021-04-06 | 刘明 | New forms of energy are with high-efficient collection device of wind energy that has anti-wind ability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20130630 |