CN209892383U - Wind wheel device of wind driven generator with tiltable blades - Google Patents
Wind wheel device of wind driven generator with tiltable blades Download PDFInfo
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- CN209892383U CN209892383U CN201920715146.2U CN201920715146U CN209892383U CN 209892383 U CN209892383 U CN 209892383U CN 201920715146 U CN201920715146 U CN 201920715146U CN 209892383 U CN209892383 U CN 209892383U
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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 wheel device of a wind driven generator with tiltable blades can adjust the rotating speed by changing the size of the swept wind area, a hub is connected with each blade through a hinge pin, and a torsional spring is arranged on the hinge pin of the pin. When wind is small, the swept wind area of the wind wheel is in the maximum state, the rotating speed is increased along with the increase of the wind speed, when the wind speed exceeds the rated wind speed, the blade can incline along the wind direction, the swept wind area is reduced, the rotating speed is not increased any more, at the moment, the wind power is reduced, the inclined angle of the blade is reduced, the swept wind area is increased, the rotating speed cannot be reduced, the rotating speed of the wind wheel can be kept in a certain range, and the wind resistance is enhanced.
Description
Technical Field
A wind wheel device of a wind driven generator, in particular to a wind wheel of a wind driven generator with blades capable of being inclined and regulated in speed.
Background
Most of the existing horizontal axis wind generators are regulated by deflecting wind wheels and rotating a propeller. The swept area of the wind wheel does not change with the wind force, and is small when the wind is weak and large when the wind is strong. The speed can not be regulated by utilizing the change of the swept wind area of the wind wheel.
Disclosure of Invention
In order to change the condition that the wind wheel of the existing wind driven generator can not utilize the change of the swept wind area for speed regulation. The utility model provides a blade tiltable aerogenerator wind wheel device. The wind wheel of the device changes the inclination of the blades in the downwind direction along with the wind power, so that the windward area of the wind wheel is increased or reduced, and the speed is automatically adjusted.
The utility model provides an used technical scheme of its technical problem is: a wind wheel device of a wind driven generator comprises a hub, blades and a torsional spring.
The hub is hinged to the blades through hinge pins, so that the blades can be inclined along the wind direction while the wind wheel rotates.
The torsion spring is penetrated on the hinge pin, and the torsion of the torsion spring enables the blade to be in a state that the wind sweeping area of the wind wheel is at the maximum. When wind is small, the torsion of the torsion spring is larger than the thrust of the wind to the blades, the wind sweeping area of the wind wheel is in the maximum state, and the rotating speed is improved along with the increase of the wind power. When the wind speed exceeds the rated wind speed, the thrust of wind to the blades is larger than the torsion of the torsion spring, the torsion spring is twisted, the blades incline along the wind direction, the swept wind area is reduced, the rotating speed is not improved along with the increase of the wind speed, at the moment, the wind speed is reduced, the torsion of the torsion spring is larger than the thrust of the wind to the blades, the torsion spring rotates, the inclination angle of the blades is reduced, the swept wind area is increased, and the rotating speed is not reduced along with the reduction of the wind speed. When strong wind exists, the inclination angle of the blades is greatly increased, the wind sweeping area of the impeller is small, and the blades are not easy to damage. Through the change of the inclination angle of the blades, the rotating speed of the wind wheel can be automatically kept within a certain range, and the influence of wind power change is small. In order to have a certain space when the blades are inclined, a downwind mode is generally adopted for a wind mode. Such a wind wheel is generally suitable for small wind turbines.
The beneficial effects of the utility model are that, can be at the within range automatic speed governing of broad wind-force, the rotational speed keeps the equilibrium, and anti wind-force is strong, the wind energy does benefit to the rate height. The wind wheel can also be used as the wind wheel of a wind turbine. The structure is simple, and the manufacturing and the installation are facilitated.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of a windward side structure according to an embodiment of the present invention.
Fig. 2 is a sectional view taken along line I-I of fig. 1.
In the figure, 1 is a blade, 2 is a hub, 3 is a hinge pin, and 4 is a torsion spring.
Detailed Description
In fig. 1, a blade (1) is hinged to a hub (2) by means of a hinge pin (3) to form a wind wheel. Each hinge pin (3) is provided with a torsion spring (4), when the wind speed exceeds the rated wind speed, the thrust of wind acting on the blade (1) is larger than the torsion of the torsion spring (4), the torsion of the torsion spring (4) tilts the blade (1) along the wind direction, the windward area is reduced, and the rotating speed is not increased along with the increase of the wind speed. At the moment, the wind speed is reduced, the torsion of the torsion spring (4) is greater than the thrust of wind to the blade (1), the torsion spring (4) rotates, the inclination angle of the blade is reduced, the swept wind area is increased, and the rotating speed is not reduced along with the reduction of the wind speed, so that the rotating speed of the wind wheel can be kept in a certain range.
In fig. 2, the hinge pin (3) is provided with a torsion spring (4), and two end side rods of the torsion spring (4) respectively lean against the hub (2) and the bottom of the blade (1).
Claims (2)
1. The utility model provides a blade tiltable aerogenerator wind wheel device, comprises wheel hub, blade, characterized by: the hub is hinged to each blade by a hinge pin, and a torsion spring is arranged on the hinge pin.
2. A wind turbine rotor apparatus with tiltable blades according to claim 1, characterized in that: the two end side rods of the torsion spring respectively lean against the hub and the bottom of the blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920715146.2U CN209892383U (en) | 2019-05-19 | 2019-05-19 | Wind wheel device of wind driven generator with tiltable blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920715146.2U CN209892383U (en) | 2019-05-19 | 2019-05-19 | Wind wheel device of wind driven generator with tiltable blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209892383U true CN209892383U (en) | 2020-01-03 |
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ID=69020802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920715146.2U Active CN209892383U (en) | 2019-05-19 | 2019-05-19 | Wind wheel device of wind driven generator with tiltable blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209892383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217269A (en) * | 2021-05-17 | 2021-08-06 | 中国华能集团清洁能源技术研究院有限公司 | Variable pre-cone angle device for wind wheel of wind turbine generator and use method |
-
2019
- 2019-05-19 CN CN201920715146.2U patent/CN209892383U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217269A (en) * | 2021-05-17 | 2021-08-06 | 中国华能集团清洁能源技术研究院有限公司 | Variable pre-cone angle device for wind wheel of wind turbine generator and use method |
| CN113217269B (en) * | 2021-05-17 | 2022-05-24 | 中国华能集团清洁能源技术研究院有限公司 | Variable pre-cone angle device for wind wheel of wind turbine generator and use method |
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