CN203257602U - Windmill with vertical shaft - Google Patents
Windmill with vertical shaft Download PDFInfo
- Publication number
- CN203257602U CN203257602U CN 201320303830 CN201320303830U CN203257602U CN 203257602 U CN203257602 U CN 203257602U CN 201320303830 CN201320303830 CN 201320303830 CN 201320303830 U CN201320303830 U CN 201320303830U CN 203257602 U CN203257602 U CN 203257602U
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- CN
- China
- Prior art keywords
- impeller
- wind
- windmill
- barge
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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 wind-driven generators, in particular to a windmill with a vertical shaft. The windmill with the vertical shaft can efficiently catch wind. The windmill with the vertical shaft comprises a base and the like, wherein a main shaft is vertically installed on the base through a bearing, a first impeller is fixedly installed on the main shaft, a windward side of the first impeller comprises the horizontal direction and the vertical direction, a second impeller is arranged below the first impeller, the outer diameter of the second impeller is smaller than that of the first impeller, a windward side of the second impeller comprises the horizontal direction and the vertical direction, at least three wind shields are vertically installed on the base, the wind shields are evenly arranged on the circumferential side of the first impeller, the wind shields are arranged in the tangent direction of the first impeller, and an air channel formed between every two adjacent wind shields gathers together towards the windward side of the first impeller and the windward side of the second impeller. According to the windmill with the vertical shaft, the start-up wind speed of operation of the windmill is reduced, wind resistance needing to be overcome by leeward sides of impeller blades is reduced, and the use ratio of wind energy is improved.
Description
Technical field
The utility model relates to the wind-driven generator field, particularly relates to a kind of pivotal axis windmill that can efficiently catch wind for wind-driven generator.
Background technique
Present windmill especially is applicable to the pivotal axis windmill in low latitude, and its structure mainly comprises an impeller on vertical main shaft and the main shaft, rely on main shaft or impeller as power output order about the power generating equipment running.Be provided with an impeller on the main shaft of existing windmill, only can trap horizontal wind, can't trap the wind of vertical direction, and existing pivotal axis windmill do not have wind gathering mechanism, so that the lee face of impeller blade need to overcome the resistance of wind, reduced the ability of catching wind.To sum up, existing pivotal axis windmill effect little at wind-force, the unstable place of wind direction is not good enough.
The model utility content
The technical problem that (one) will solve
The utility model is can only the horizontal wind of capture in order to solve existing pivotal axis windmill, need overcome wind resistance, catch the technical problems such as the wind effect is relatively poor.
(2) technological scheme
For solving the problems of the technologies described above, the utility model provides a kind of pivotal axis windmill, is characterised in that, this windmill comprises: base; Main shaft, described main shaft vertically is installed on the described base by bearing, is used for outputting power; The first impeller, described the first impeller is fixedly mounted on the described main shaft, and the windward side of described the first impeller comprises substantially horizontal and vertical direction; The second impeller, described the second impeller are fixedly mounted on the described main shaft of described the first impeller below, and the external diameter of described the second impeller is less than the external diameter of described the first impeller, and the windward side of described the second impeller comprises substantially horizontal and vertical direction; And vertically be installed at least 3 barge boards on the described base, described at least 3 barge boards are arranged on the circumference of described the first impeller uniformly, each barge board blocks the lee face at described the first impeller, and the air passageways that forms between the adjacent barge board is gathered towards the windward side of described the first impeller and described the second impeller.
Preferably, described at least 3 barge boards are arranged in the shape of a spiral.
Preferably, described at least 3 barge boards are tangential on same incircle, and the cylindrical of described incircle and described the first impeller is concentric circle.
Preferably, one side the point of contact place that is positioned at described incircle of described barge board, the corresponding another side of described barge board is along the tangential extension of this incircle and be longer than the radius of the first impeller.
Preferably, described the first impeller and described the second impeller have respectively 4 blades.
Preferably, described barge board is set to 4.
(3) beneficial effect
The pivotal axis windmill that the utility model provides, design by bilobed wheel, and the windward side of bilobed wheel comprises the design of substantially horizontal and vertical direction, can be on the basis that captures horizontal wind, further trap vertical wind, but so that this windmill effect better be applicable to the place that wind-force is little, wind direction is unstable; Further, the windmill that the utility model provides, be provided with barge board, can play and gather wind action, reduced the startup wind speed of windmill running, and barge board can block the lee face of impeller blade, wind-force mainly concentrates on the windward side of impeller, significantly reduce the required wind resistance that overcomes of lee face of impeller blade, improved the utilization ratio of wind energy.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is the utility model embodiment 1 schematic top plan view;
Fig. 3 is the utility model embodiment 2 schematic top plan view;
Wherein: 1, base, 2, main shaft, the 3, first impeller, the 4, second impeller, 5, barge board, 6, incircle.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Embodiment 1 as shown in Figure 1, 2, a kind of pivotal axis windmill, this windmill comprise base 1, main shaft 2, the first impeller 3, the second impeller 4 and at least 3 barge boards 5, this embodiment is take 4 barge boards as example.
Base 1 wherein fixes on the ground, can be set to hollow structure in it, as the generating cabin, to hold power generating equipment etc.; Main shaft 2 is by vertical being installed on the base 1 of bearing, and main shaft 2 can rotate synchronously with impeller, is used for outputting power, and then orders about the power generating equipment that is connected with main shaft 2 and generate electricity.
Be installed with the first impeller 3 and the second impeller 4 at main shaft 2, the second impeller 4 is positioned at the first impeller 3 belows, the windward side of the first impeller 3 and the second impeller 4 comprises substantially horizontal and vertical direction, namely, with the windward side of the blade of the first impeller 3 and the second impeller 4 arrange oblique lower, the concrete curvature of blade is flexible design according to the wind-force of different occasions, as long as satisfy horizontal wind and wind straight up all can order about vane rotary, accordingly, place in the wind direction shakiness, horizontal wind can order about the first impeller 3 and the second impeller 4 drives main shaft 2 rotations, and on this basis, because of the temperature difference formed from ground up air-flow, and the air-flow that makes progress that is transformed into after by the second impeller 4 of horizontal wind also can promote the rotation of the first impeller 3 and the second impeller 4 to a certain extent.
4 barge boards 5 are centered around the circumference of the first impeller 3 uniformly, and vertical is installed on the base 1,4 barge boards 5 are clockwise or counterclockwise helical along overlooking direction, so that the air passageways along continuous straight runs that forms between the adjacent barge board 5 is gathered towards the windward side of described the first impeller 3 and described the second impeller 4, and then reduced the startup wind speed of this windmill, preferably, each barge board 5 is tangential on same incircle, the cylindrical of this incircle and described the first impeller is concentric circle, one side of barge board 5 is positioned at the place, point of contact of the incircle 6 of 4 barge boards 5, corresponding another side is along the tangential extension of this incircle 6 and be longer than the radius (being length of blade) of the first impeller 3, to realize that the blade that will be in leeward state all covers, and then reduce to blow to the wind of impeller lee face, reduce horizontal wind to the resistance of impeller.The diameter of the incircle 6 of 4 barge boards 5 greater than with the external diameter of the first impeller 3, in rotary course, touch barge board 5 to avoid blade.
In addition, the external diameter of the first impeller 3 is set to the external diameter greater than the second impeller 4, synchronous operated the first impeller 3 is different with the linear velocity of the second impeller 4, the first impeller 3 is different with the level of disruption of the air-flow in the zone of the second impeller 4 difference correspondences, and then cause the air pressure of 3 corresponding regions of the first impeller less than the air pressure of 4 corresponding regions of the second impeller, promoted the gas in the semiclosed zone that baffle plate surrounds upwards to flow, the air-flow of rising has further promoted the rotation of the first impeller 3 and the second impeller 4.
Suitable with 4 barge boards 5, preferably the first impeller 3 and the second impeller 4 are set to respectively have 4 blades, both guaranteed that impeller has above-mentioned characteristics, had controlled again fabricating cost.For further controlling cost, 3 barge boards also can be set, corresponding, the first impeller 3 and the second impeller 4 are set to respectively have 3 blades.
In addition, for the further collection wind effect that improves barge board 5, and the seal degree of strengthening 5 regions of barge board, barge board 5 quantity can be set more than 4, embodiment 2 as shown in Figure 3, the arrangement mode that is set to 5,6 barge boards of 6 barge boards is identical with embodiment 1.
It should be noted that at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those skilled in the art are to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. a pivotal axis windmill is characterised in that, this windmill comprises:
Base;
Main shaft, described main shaft vertically is installed on the described base by bearing, is used for outputting power;
The first impeller, described the first impeller is fixedly mounted on the described main shaft, and the windward side of described the first impeller comprises substantially horizontal and vertical direction;
The second impeller, described the second impeller are fixedly mounted on the described main shaft of described the first impeller below, and the external diameter of described the second impeller is less than the external diameter of described the first impeller, and the windward side of described the second impeller comprises substantially horizontal and vertical direction;
And vertically be installed at least 3 barge boards on the described base, described at least 3 barge boards are arranged on the circumference of described the first impeller uniformly, each barge board blocks the lee face at described the first impeller, and the air passageways that forms between the adjacent barge board is gathered towards the windward side of described the first impeller and described the second impeller.
2. pivotal axis windmill according to claim 1 is characterized in that, described at least 3 barge boards are arranged in the shape of a spiral.
3. pivotal axis windmill according to claim 2 is characterized in that, described at least 3 barge boards are tangential on same incircle, and the cylindrical of described incircle and described the first impeller is concentric circle.
4. pivotal axis windmill according to claim 3 is characterized in that, one side the point of contact place that is positioned at described incircle of described barge board, the corresponding another side of described barge board is along the tangential extension of this incircle and be longer than the radius of the first impeller.
5. the described pivotal axis windmill of arbitrary claim is characterized in that according to claim 1-4, and described the first impeller and described the second impeller have respectively 4 blades.
6. pivotal axis windmill according to claim 5 is characterized in that, described barge board is set to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320303830 CN203257602U (en) | 2013-05-29 | 2013-05-29 | Windmill with vertical shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320303830 CN203257602U (en) | 2013-05-29 | 2013-05-29 | Windmill with vertical shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257602U true CN203257602U (en) | 2013-10-30 |
Family
ID=49470172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320303830 Expired - Fee Related CN203257602U (en) | 2013-05-29 | 2013-05-29 | Windmill with vertical shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108674449A (en) * | 2018-07-18 | 2018-10-19 | 王玲 | A kind of traffic train rail maintenance construction safety warning device |
-
2013
- 2013-05-29 CN CN 201320303830 patent/CN203257602U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108674449A (en) * | 2018-07-18 | 2018-10-19 | 王玲 | A kind of traffic train rail maintenance construction safety warning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20160529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |