CN201818427U - Automatic starter of vertical axis wind turbine - Google Patents
Automatic starter of vertical axis wind turbine Download PDFInfo
- Publication number
- CN201818427U CN201818427U CN2010205282730U CN201020528273U CN201818427U CN 201818427 U CN201818427 U CN 201818427U CN 2010205282730 U CN2010205282730 U CN 2010205282730U CN 201020528273 U CN201020528273 U CN 201020528273U CN 201818427 U CN201818427 U CN 201818427U
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- strut
- blade
- rotating shaft
- vertical axis
- root
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Abstract
The utility model relates to the field of application of wind energy, and discloses an automatic starter of a vertical axis wind turbine, which comprises a rotating shaft (1), blades (2) and supporting bars (3), wherein the blades (2) are straight; the cross section of the supporting bar (3) is concave in the front part and sharp in the rear part; the number of the blades (2) is at least two, and at least one supporting bar is connected between each blade (2) and the rotating shaft (1); and the lower end of the rotating shaft (1) is connected with a transmission shaft of a generator. The automatic starter of the vertical axis wind turbine can improve the automatic starting performance of Phi type and H type vertical axis wind turbines, and can enhance the utilization efficiency of wind energy.
Description
Technical field
The utility model relates to the wind energy application, particularly a kind of automatic starting gear of vertical axis windmill.
Background technique
At present, application vertical axis windmill more widely mainly contains three kinds of different structures, is respectively S type structure, Φ type structure and H type structure.Wherein, S type vertical axis windmill mainly utilizes the aerodynamical resistance acting, is called shaft resistance type windmill; Aerodynamic lift acting that Φ type, H type vertical axis windmill mainly utilize aerofoil profile to produce is called the lift-type wind energy conversion system.
See also Fig. 1, Fig. 1 is the structural representation of existing a kind of S type vertical axis windmill.Wherein, S type vertical axis windmill is made up of the blade and the rotating shaft of two semi-cylindrical shapes, and wherein, the rotating shaft lower end is connected with the transmission shaft of generator, realizes the conversion of moment of torsion transmission and wind energy.S type vertical axis windmill is typical shaft resistance type windmill, and its Wind Power Utilization efficient is relatively poor, and advantage is that starting torque is bigger, fully can self-starting.
See also Fig. 2, Fig. 2 is the structural representation of existing a kind of Φ type vertical axis windmill.Wherein, Φ type vertical axis windmill is made up of the blade of three meniscus shapes, three struts and rotating shaft, wherein, each root strut is used for fixing a slice blade, the two ends and the rotating shaft of each sheet blade are fixed, the rotating shaft lower end is connected with the transmission shaft of generator, realizes the conversion of moment of torsion transmission and wind energy.Φ type vertical axis windmill shown in Figure 2 is in rotation process, and the moment of torsion that each sheet blade is produced is also inconsistent, the reciprocal moment of torsion that the blade that has also produces, and therefore, Φ type vertical axis windmill can not self-starting.
See also Fig. 3, Fig. 3 is the structural representation of existing a kind of H type vertical axis windmill.Wherein, H type wind energy conversion system is made up of three prismatic blades, six roots of sensation strut and rotating shaft, and wherein, per two struts are used for fixing a slice blade, and the rotating shaft lower end is connected with the transmission shaft of generator, realizes the conversion of moment of torsion transmission and wind energy.H type vertical axis windmill self-starting performance shown in Figure 3 is better slightly than Φ type vertical axis windmill, but still relatively poor with respect to S type vertical axis windmill and horizontal-shaft wind turbine.
The inventor finds that in practice the self-starting poor-performing of Φ type, H type vertical axis windmill has reduced Wind Power Utilization efficient.
The model utility content
A kind of automatic starting gear of vertical axis windmill is provided in the utility model, has been used to improve the self-starting performance of Φ type, H type vertical axis windmill, improved Wind Power Utilization efficient.
A kind of automatic starting gear of vertical axis windmill comprises:
Rotating shaft (1), blade (2) and strut (3);
Described blade (2) is a prismatic blade; The cross section of described strut (3) is preceding recessed metacone shape;
Wherein, the quantity of described blade (2) is at least two, and is connected a described strut (3) at least between the described blade of each sheet (2) and the described rotating shaft (1);
Described rotating shaft (1) lower end connects the transmission shaft of generator.
Alternatively, the windward side of the described strut of each root (3) is groove shapes, and lee face is "＞" shape.
Alternatively, the quantity of described blade (2) is three, and is connected two described struts (3) between the described blade of each sheet (2) and the described rotating shaft (1); Wherein, three described struts (3) are positioned at same horizontal plane, and three described struts (3) are positioned at another horizontal plane in addition.
Wherein, the line direction of pointing to the lee face of the described strut of next root (3) from the windward side of the described strut of each root (3) of same horizontal plane is counterclockwise or clockwise direction.
Wherein, the distance between two horizontal planes is less than or equal to the length of described blade (2).
Preferably, the rectification covering of lines type is laid on the surface of the described strut of each root (3).
A kind of automatic starting gear of vertical axis windmill comprises:
Rotating shaft (1), blade (2) and strut (3);
Described blade (2) is meniscus shape; The cross section of described strut (3) is preceding recessed metacone shape;
Wherein, the fixedly connected described rotating shafts in the two ends of the described blade of each sheet (2) (1), and be connected a described strut (3) at least between the inward flange of the described blade of each sheet (2) and the described rotating shaft (1);
Described rotating shaft (1) lower end connects the transmission shaft of generator.
Alternatively, the windward side of the described strut of each root (3) is groove shapes, and lee face is "＞" shape.
Alternatively, the quantity of described blade (2) is three, and is connected a described strut (3) between the described blade of each sheet (2) and the described rotating shaft (1); Wherein, three described struts (3) are positioned at same horizontal plane.
Wherein, the line direction of pointing to the lee face of next root strut (3) from the windward side of the described strut of each root (3) is counterclockwise or clockwise direction.
Preferably, the rectification covering of lines type is laid on the surface of the described strut of each root (3).
Compared with prior art, the embodiment of the invention has following beneficial effect:
In the automatic starting gear of the vertical axis windmill that the utility model provides, made full use of the strut (3) that is fixedly connected between rotating shaft (1) and the blade (2), strut (3) is designed to cross section is preceding recessed metacone shape, produce pressure reduction after making less wind enter strut (3) concave surface, form thrust and promote the vertical axis windmill running, realize self-starting.Thereby the utility model can improve the self-starting performance of Φ type, H type vertical axis windmill, improves Wind Power Utilization efficient.
Description of drawings
In order to be illustrated more clearly in the utility model or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing a kind of S type vertical axis windmill;
Fig. 2 is the structural representation of existing a kind of Φ type vertical axis windmill;
Fig. 3 is the structural representation of existing a kind of H type vertical axis windmill;
The structural representation of the automatic starting gear of a kind of vertical axis windmill that Fig. 4 provides for the utility model;
The enlarged view of strut that Fig. 5 provides for the utility model (3) and blade (2) joint;
The cross sectional representation of a kind of strut (3) that Fig. 6 provides for the utility model;
The structural representation of the automatic starting gear of the another kind of vertical axis windmill that Fig. 7 provides for the utility model.
Embodiment
The utility model provides a kind of automatic starting gear of vertical axis windmill, made full use of the strut (3) that is fixedly connected between rotating shaft (1) and the blade (2), strut (3) is designed to cross section is preceding recessed metacone shape, produce pressure reduction after making less wind enter strut (3) concave surface, form thrust and promote the vertical axis windmill running, realize self-starting.Thereby, can improve the self-starting performance of Φ type, H type vertical axis windmill, improve Wind Power Utilization efficient.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme in the utility model is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one:
See also Fig. 4, the structural representation of the automatic starting gear of a kind of vertical axis windmill of providing among the utility model embodiment one is provided Fig. 4.As shown in Figure 4, this automatic starting gear can comprise:
Rotating shaft (1), blade (2) and strut (3);
Wherein, blade (2) is a prismatic blade; The cross section of strut (3) is preceding recessed metacone shape;
Wherein, the quantity of blade (2) is at least two, and is connected a strut (3) at least between each sheet blade (2) and the rotating shaft (1);
Wherein, rotating shaft (1) lower end connects the transmission shaft of generator, realizes the conversion of moment of torsion transmission and wind energy.
Among the utility model embodiment one, blade (2) can be the blade of whole piece, also can be to be connected and composed by the multistage blade.
Among the utility model embodiment one, each root strut (3) can be designed to the windward side and be groove shapes, and lee face is "＞" shape, makes the cross section of each root strut (3) be preceding recessed metacone shape.See also Fig. 5, Fig. 5 is the enlarged view of strut (3) and blade (2) joint, and wherein, A-A represents to intercept strut (3) cross section.What Fig. 6 represented is strut (3) cross sectional representation of intercepting, and as can be seen from Figure 6, the cross section of strut (3) is preceding recessed metacone shape, and wherein, windward side (4) are groove shapes, and lee face (5) is "＞" shape.
Produce pressure reduction enter the windward side that is groove shapes (4) of each root strut (3) from all directions when less wind after, form thrust and promote the vertical axis windmill running, realize self-starting.Particularly, when the area in the windward side that is groove shapes (4) of strut (3) was big more, vertical axis windmill self-starting performance was strong more.Thereby the automatic starting gear that the embodiment of the invention provides can make the also self-starting smoothly under the less situation of wind speed of H type vertical axis windmill, reduces from the requirement of wind speed automatically, improves Wind Power Utilization efficient.
As shown in Figure 4, among the utility model embodiment one, the quantity of blade (2) can be three, and is connected two struts (3) between each root blade (2) and the rotating shaft (1); Wherein, top three struts (3) are positioned at same horizontal plane, and following three struts (3) in addition are positioned at another horizontal plane.
Wherein, the distance between two horizontal planes is less than or equal to the length of blade (2), and the size of each sheet blade (2) can be identical among the utility model embodiment one.
Wherein, point to the line direction of lee face (5) of next root strut (3) from the windward side (4) of each root strut (3) of same horizontal plane for counterclockwise or clockwise direction.
Among the utility model embodiment one, the quantity of blade (2) also can be more than three, the quantity of the strut (3) that is connected between each sheet blade (2) and the rotating shaft (1) also can be more than two, the quantity of the strut (3) that is connected between each sheet blade (2) and the rotating shaft (1) also can be inequality, for example, the quantity of the strut (3) that is connected between a certain blade (2) and the rotating shaft (1) is two, and the quantity of the strut (3) that is connected between another blade (2) and the rotating shaft (1) is three.The utility model embodiment one does not limit.The line direction that only needs the windward side (4) of each root strut (3) to point to the lee face (5) of next root strut (3) is counterclockwise or clockwise direction gets final product.
Among the utility model embodiment one, an end of each root strut (3) vertically connects rotating shaft (1), and the other end vertically connects a slice blade (2), makes each sheet blade (2) parallel with rotating shaft (1).
Among the utility model embodiment one, vertical axis windmill is when rotating, the lee face (5) of each root strut (3) can be received blocking of wind-force, in order to strengthen the self-starting performance, can lay the rectification covering of lines type on the surface (comprising windward side and lee face) of each root strut (3).Wherein, the rectification covering of lines type can play the effect that reduces wind resistance, improves Wind Power Utilization efficient.
A kind of automatic starting gear of vertical axis windmill is provided among the utility model embodiment one, made full use of the strut (3) that is fixedly connected between rotating shaft (1) and the blade (2), strut (3) is designed to cross section is preceding recessed metacone shape, produce pressure reduction after making less wind enter strut (3) concave surface, form thrust and promote the vertical axis windmill running, realize self-starting.Thereby, can improve the self-starting performance of H type vertical axis windmill, improve Wind Power Utilization efficient.
Embodiment two:
See also Fig. 7, the structural representation of the automatic starting gear of the another kind of vertical axis windmill that provides among the utility model embodiment two is provided Fig. 7.As shown in Figure 7, this automatic starting gear can comprise:
Rotating shaft (1), blade (2) and strut (3);
Wherein, blade (2) is meniscus shape; The cross section of strut (3) is preceding recessed metacone shape;
Wherein, the fixedly connected rotating shafts in two ends (1) of each sheet blade (2), and be connected a strut (3) at least between the inward flange of each sheet blade (2) and the rotating shaft (1);
Wherein, rotating shaft (1) lower end connects the transmission shaft of generator, realizes the conversion of moment of torsion transmission and wind energy.
In the embodiment of the invention two, blade (2) can be that the bending blade of whole piece constitutes, and also can be the blade that is meniscus shape that the multistage blade connects and composes.
Among the utility model embodiment two, each root strut (3) can be designed to the windward side and be groove shapes, and lee face is "＞" shape, makes the cross section of each root strut (3) be preceding recessed metacone shape.Wherein, the cross sectional representation of each root strut (3) is identical with Fig. 6, and the utility model embodiment two does not repeat.
As shown in Figure 7, among the utility model embodiment two, the quantity of blade (2) is three, and is connected a strut (3) between each sheet blade (2) and the rotating shaft (1); Wherein, three struts (3) are positioned at same horizontal plane.
Wherein, the line direction of pointing to the lee face (5) of next root strut (3) from the windward side (4) of each root strut (3) is counterclockwise or clockwise direction.
Among the utility model embodiment two, the quantity of blade (2) also can be more than three, the quantity of the strut (3) that is connected between each sheet blade (2) and the rotating shaft (1) also can be more than one, the quantity of the strut (3) that is connected between each sheet blade (2) and the rotating shaft (1) also can be inequality, for example, the quantity of the strut (3) that is connected between a certain blade (2) and the rotating shaft (1) is one, and the quantity of the strut (3) that is connected between another blade (2) and the rotating shaft (1) is two.The utility model embodiment two does not limit.The line direction that only needs the windward side (4) of each root strut (3) to point to the lee face (5) of next root strut (3) is counterclockwise or clockwise direction gets final product.
Among the utility model embodiment two, vertical axis windmill is when rotating, the lee face (5) of each root strut (3) can be received blocking of wind-force, in order to strengthen the self-starting performance, can lay the rectification covering of lines type on the surface (comprising windward side and lee face) of each root strut (3).Wherein, the rectification covering of lines type can play the effect that reduces wind resistance, improves Wind Power Utilization efficient.
A kind of automatic starting gear of vertical axis windmill is provided among the utility model embodiment two, made full use of the strut (3) that is fixedly connected between rotating shaft (1) and the blade (2), strut (3) is designed to cross section is preceding recessed metacone shape, produce pressure reduction after making less wind enter strut (3) concave surface, form thrust and promote the vertical axis windmill running, realize self-starting.Thereby, can improve the self-starting performance of Φ type vertical axis windmill, improve Wind Power Utilization efficient.
Among the utility model embodiment, the windward side that is groove shapes (4) of strut (3) and the curve of lee face (5), curve form need be according to the structural features of complete machine friction torque size assessment situation and strut (3) itself, utilization aerodynamics theory is carried out accurate Calculation, makes design more rationally and effectively realize self-starting function.
More than the automatic starting gear of a kind of vertical axis windmill of providing in the utility model is described in detail, used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand the utility model; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, to sum up, this description should not be construed as restriction of the present utility model.
Claims (11)
1. the automatic starting gear of a vertical axis windmill is characterized in that, comprising:
Rotating shaft (1), blade (2) and strut (3);
Described blade (2) is a prismatic blade; The cross section of described strut (3) is preceding recessed metacone shape;
Wherein, the quantity of described blade (2) is at least two, and is connected a described strut (3) at least between the described blade of each sheet (2) and the described rotating shaft (1);
Described rotating shaft (1) lower end connects the transmission shaft of generator.
2. automatic starting gear according to claim 1 is characterized in that, the windward side of the described strut of each root (3) is groove shapes, and lee face is "＞" shape.
3. automatic starting gear according to claim 2 is characterized in that, the quantity of described blade (2) is three, and is connected two described struts (3) between the described blade of each sheet (2) and the described rotating shaft (1); Wherein, three described struts (3) are positioned at same horizontal plane, and three described struts (3) are positioned at another horizontal plane in addition.
4. automatic starting gear according to claim 3 is characterized in that, the line direction of pointing to the lee face of the described strut of next root (3) from the windward side of the described strut of each root (3) of same horizontal plane is counterclockwise or clockwise direction.
5. automatic starting gear according to claim 3 is characterized in that, the distance between two horizontal planes is less than or equal to the length of described blade (2).
6. according to each described automatic starting gear of claim 1～5, it is characterized in that the rectification covering of lines type is laid on the surface of the described strut of each root (3).
7. the automatic starting gear of a vertical axis windmill is characterized in that, comprising:
Rotating shaft (1), blade (2) and strut (3);
Described blade (2) is meniscus shape; The cross section of described strut (3) is preceding recessed metacone shape;
Wherein, the fixedly connected described rotating shafts in the two ends of the described blade of each sheet (2) (1), and be connected a described strut (3) at least between the inward flange of the described blade of each sheet (2) and the described rotating shaft (1);
Described rotating shaft (1) lower end connects the transmission shaft of generator.
8. automatic starting gear according to claim 7 is characterized in that, the windward side of the described strut of each root (3) is groove shapes, and lee face is "＞" shape.
9. automatic starting gear according to claim 8 is characterized in that, the quantity of described blade (2) is three, and is connected a described strut (3) between the described blade of each sheet (2) and the described rotating shaft (1); Wherein, three described struts (3) are positioned at same horizontal plane.
10. automatic starting gear according to claim 9 is characterized in that, the line direction of pointing to the lee face of next root strut (3) from the windward side of the described strut of each root (3) is counterclockwise or clockwise direction.
11., it is characterized in that the rectification covering of lines type is laid on the surface of the described strut of each root (3) according to each described automatic starting gear of claim 7～10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205282730U CN201818427U (en) | 2010-09-13 | 2010-09-13 | Automatic starter of vertical axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205282730U CN201818427U (en) | 2010-09-13 | 2010-09-13 | Automatic starter of vertical axis wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818427U true CN201818427U (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205282730U Expired - Lifetime CN201818427U (en) | 2010-09-13 | 2010-09-13 | Automatic starter of vertical axis wind turbine |
Country Status (1)
| Country | Link |
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| CN (1) | CN201818427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943108A (en) * | 2010-09-13 | 2011-01-12 | 青海风发科技发展有限公司 | Self-starting equipment of vertical axis wind turbine |
-
2010
- 2010-09-13 CN CN2010205282730U patent/CN201818427U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943108A (en) * | 2010-09-13 | 2011-01-12 | 青海风发科技发展有限公司 | Self-starting equipment of vertical axis wind turbine |
| WO2012034370A1 (en) * | 2010-09-13 | 2012-03-22 | 青海风发科技发展有限公司 | Vertical axis wind turbine with self starting device |
| CN101943108B (en) * | 2010-09-13 | 2012-07-11 | 青海风发科技发展有限公司 | Self-starting equipment of vertical axis wind turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110504 Effective date of abandoning: 20120711 |