CN201284721Y - Thin-slab wind energy blade with rammed stiffening ribs - Google Patents
Thin-slab wind energy blade with rammed stiffening ribs Download PDFInfo
- Publication number
- CN201284721Y CN201284721Y CNU2008202024142U CN200820202414U CN201284721Y CN 201284721 Y CN201284721 Y CN 201284721Y CN U2008202024142 U CNU2008202024142 U CN U2008202024142U CN 200820202414 U CN200820202414 U CN 200820202414U CN 201284721 Y CN201284721 Y CN 201284721Y
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- CN
- China
- Prior art keywords
- stiffening rib
- blade
- wind power
- thin plate
- band
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- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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 discloses a thin-plate wind-energy leaf blade with a punching molding type strengthening rib, and comprises a leaf blade body (1), the leaf blade body is formed by punching metal thin plates with equal thickness, and the middle part of the leaf blade body is provided with at least a punching molding type strengthening rib (2). A foline section-shaped line of the thin-plate wind-energy leaf blade is a straight line or a streamline-shaped curved line; the strengthening rib forms a long strip shape and is vertical with the leaf blade body; or the strengthening rib and one side of the leaf blade body form a sharp angle, and can be flat shape; or the height of the strengthening rib is gradually reduced from a leaf root along the radial direction or is gradually reduced to the leaf blade edge along the inclined direction. The thin-plate wind-energy leaf blade with punching molding type strengthening rib has higher intensity, is applied to a wind powered generator, has small self-weight and higher intensity, is convenient for the wind powered generator to be started in low wind speed condition, not only has practical economic value, and is energy saving and environment protective and has better social benefits.
Description
Technical field
The utility model relates to a kind of wind power blade, particularly relates to the thin plate wind power blade that a kind of band strikes out the pattern stiffening rib.
Background technique
At present, global energy is exhausted day by day, and grobal environment worsens day by day, and the exploitation of renewable energy sources is extremely urgent, and wind-power electricity generation increases under the vigorously supporting of national policy just fast as current comparatively ripe renewable energy technologies.But still there is great restriction in the utilization scope of wind-powered electricity generation at present, and main concentrating is distributed in the abundant area of wind energy resourceses such as Xinjiang, the Inner Mongol and offshore islands, and the urban area big in the population density, that power consumption is high, most of wind-powered electricity generation product still can't effectively be used.Because it is higher that present most of wind-powered electricity generation product starts wind speed, efficient is low during low cruise, can't satisfy wind field operating mode work a little less than the city.
Develop the wind-driven generator that is fit to the weak wind field operation in city, must solve its low wind speed and start problem.Existing most of wind power blades adopt the profile of the aerofoil profile of aviation wing as blade, and this airfoil fan has effectively improved the efficient of blower fan, has reduced noise.But because aviation aerofoil profile profile complexity generally adopts glass fiber reinforced plastics composite material, engineering plastics or metal section processing, brought inconvenience to processing, improved cost of production, manufacturing efficiency is low, and blade is unfavorable for that from great blower fan starts operation under low wind speed.Existing blade adopts sheet with equal thickness to make, and this blade manufacturing is simple, and the manufacturing efficiency height is with low cost, but blade strength is difficult to be guaranteed.
The model utility content
The purpose of this utility model is at existing wind power blade fan starting difficulty under low wind speed, some shortcomings parts such as thin plate blade strength deficiency, it is little to design a kind of blade deadweight, and intensity is higher, and band cheap for manufacturing cost strikes out the thin plate wind power blade of pattern stiffening rib.
The purpose of this utility model is achieved in that
A kind of band strikes out the thin plate wind power blade of pattern stiffening rib, comprises blade body, and described blade body adopts the uniform thickness sheetmetal to be stamped to form, and described blade body middle part is provided with at least one and strikes out the pattern stiffening rib.
Described thin plate wind power blade foline cross section molded lines can be straight line or streamlined curve.
Described blade body is surface plate form or line panel form; Described line face lines is perpendicular to the blade turning radius, and line face gradient is 5 °～30 °.
Described stiffening rib is a long strip, the vertical vane body.
Described stiffening rib is a long strip, and is in an acute angle with blade body one side.
Described stiffening rib is a pancake.
Described stiffening rib height is begun radially to reduce gradually by blade root or reduces gradually toward blade edge along oblique.
Described stiffening rib is 2.
Described stiffening rib is many, arranges along the vein shape.
With respect to prior art, advantage of the present utility model and beneficial effect:
1, blade of wind-driven generator of the present utility model can obtain the blade body of broad, can make blade have higher intensity when not increasing vane thickness.
2, the utility model technology is simple, adopts Production of Stamping Die, and the finished product high conformity can effectively be controlled the computing ballance correction of wind wheel.
3, the utility model blade deadweight small intensity height is beneficial to the startup operation work of weak wind field wind-driven generator, and practical economic value is not only arranged, and the good social benefit is also arranged, and helps environmental protection, energy saving.
Description of drawings
Fig. 1 a is the blade plan view for band stiffening rib blade 1;
Fig. 1 b is that the A-A section is the thin plate wind power blade foline cross section molded lines of straight line among Fig. 1 a;
Fig. 1 c is that the A-A section is the thin plate wind power blade foline cross section molded lines of streamlined curve among Fig. 1 a;
Fig. 2 a is that blade body is with the A of stiffening rib blade to view for surface plate shape;
Fig. 2 b is that blade body is that the A of line panel-shaped band stiffening rib blade is to view;
Fig. 3 a is a long strip reinforcing rib structure schematic representation;
Fig. 3 b is an oblique reinforcing rib structure schematic representation;
Fig. 3 c is a tablet reinforcing rib structure schematic representation;
Fig. 4 is the side schematic view of band stiffening rib;
Fig. 5 is many stiffening rib blade schematic representation;
Fig. 6 the utility model embodiment 3 schematic representation.
Embodiment
Below embodiment of the present utility model be described in further detail, but mode of execution of the present utility model is not limited thereto.
Mode of execution 1:
Shown in Fig. 1 a, 1b, 1c, the thin plate wind power blade that band strikes out the pattern stiffening rib comprises blade body 1 and stiffening rib 2.Blade body 1 diameter is 800mm (in the blower fan field, blade diameter is commonly used to represent that blade is around disk diameter that its rotating center scans), and for radially, radial length is 370mm, employing waits Plate Steel or aluminium alloy plate impact briquetting with the radial direction of blade body 1.Thin plate wind power blade foline cross section molded lines can be straight line (shown in Fig. 1 b), also can be the streamlined curve shown in Fig. 1 c.So-called foline cross section molded lines is meant the section morphology of ignoring vane thickness and stiffening rib rear blade.Shown in Fig. 2 a, blade body 1 is the surface plate form, and blade body 1 can also be the line panel form shown in Fig. 2 b.When blade body adopted line panel form, this line face lines was perpendicular to the blade turning radius, and line face gradient is 5 °～30 °.
Stiffening rib 2 adopts single stiffening rib, along blade body 1 middle part major diameter to layout.Shown in Fig. 3 a, 4, the stiffening rib form can be long strip, the vertical vane body, and the height H=6mm of blade root place, linear decrease radially is to the height h=2mm of blade tip place.Stiffening rib 2 also can be Fig. 3 b, form that 3c illustrates.
During preparation, adopt the composite dies operation, at first will wait the Plate Steel punch process to become blade plan form, further suppress the curve form that the place needs stiffening rib blank and blade again, and adopt operations such as folder is flat, bending, pressing to obtain finished product at last at different stiffening rib types respectively.
During work, three or multi-disc vanes fixed form impeller on wheel hub, and the rotation of wind-force impeller is final to drive the purpose that generator work reaches generating.Especially under weak wind condition, the blade that the utility model relates to has less inertia because deadweight is little at same wind condition, is easier to start operation.
Mode of execution 2:
As shown in Figure 5, band strikes out the thin plate wind power blade of pattern stiffening rib: blade body 1, stiffening rib 2a and 2b.Blade body 1 diameter is 1200mm, and for radially, radial length is 550mm, employing waits Plate Steel or aluminium alloy plate impact briquetting with the radial direction of blade body 1.Thin plate wind power blade foline cross section molded lines can be straight line (shown in Fig. 1 b), also can be the streamlined curve shown in Fig. 1 c.Here so-called foline cross section molded lines is meant the section morphology of ignoring vane thickness and stiffening rib rear blade.Shown in Fig. 2 a, blade body 1 is the surface plate form, and blade body 1 can also be the line panel form shown in Fig. 2 b.When blade body adopted line panel form, this line face lines was perpendicular to the blade turning radius, and line face gradient is 5 °～30 °.
Stiffening rib 2 adopts two stiffening ribs, is long strip, and is in an acute angle with blade body 1 one sides, shown in Fig. 3 b, radially arrange the height H=6mm of stiffening rib 2a blade root place, linear decrease radially, to the height h=2mm of blade tip place, stiffening rib 2a and blade body 1 angle are 45 °; Height H=the 4mm of stiffening rib 2b blade root place, radially linear decrease decays to the height h=0mm of radial length 400mm place, and stiffening rib 2b and blade body 1 angle are 0 °.
During preparation, adopt the composite dies operation, at first will wait the Plate Steel punch process to become blade plan form, further suppress the curve form that the place needs stiffening rib blank and blade again, and adopt operations such as folder is flat, bending, pressing to obtain finished product at last at different stiffening rib types respectively.
During work, three or multi-disc vanes fixed form impeller on wheel hub, and the rotation of wind-force impeller also finally drives the purpose that generator work reaches generating.Especially under weak wind condition, the blade that the utility model relates to has less inertia because deadweight is little at same wind condition, is easier to start operation.
Mode of execution 3:
As shown in Figure 6, band strikes out the thin plate wind power blade of pattern stiffening rib: blade body 1, stiffening rib 2a and 2b.Blade body 1 diameter is 1200mm, and for radially, radial length is 550mm, employing waits Plate Steel or aluminium alloy plate impact briquetting with the radial direction of blade body 1.Thin plate wind power blade foline cross section molded lines can be straight line (shown in Fig. 1 b), also can be the streamlined curve shown in Fig. 1 c.Here so-called foline cross section molded lines is meant the section morphology of ignoring vane thickness and stiffening rib rear blade.Shown in Fig. 2 a, blade body 1 is the surface plate form, and blade body 1 can also be the line panel form shown in Fig. 2 b.When blade body adopted line panel form, this line face lines was perpendicular to the blade turning radius, and line face gradient is 5 °～30 °.
Stiffening rib 2 adopts many stiffening ribs, is long strip, and vertical vane body 1 is arranged along the vein shape, as shown in Figure 6.Radially the stiffening rib 2 of Bu Zhiing is at the height H=6mm of blade root place, and linear decrease radially is to the height h=2mm of blade tip place; Stiffening rib 2b draws oblique layout by stiffening rib 2a, and the section start height equates with junction 3 place's height, along oblique linear decrease, decays to the height h=0mm of diagonal length 260mm place; The stiffening rib form also can be tablet shown in oblique shown in Fig. 3 b or Fig. 3 c.
During preparation, adopt the composite dies operation, at first will wait the Plate Steel punch process to become blade plan form, further suppress the curve form that the place needs stiffening rib blank and blade again, and adopt operations such as folder is flat, bending, pressing to obtain finished product at last at different stiffening rib types respectively.
During work, three or multi-disc vanes fixed form impeller on wheel hub, and the rotation of wind-force impeller also finally drives the purpose that generator work reaches generating.Especially under weak wind condition, the blade that the utility model relates to has less inertia because deadweight is little at same wind condition, is easier to start operation.
Claims (9)
1, a kind of band strikes out the thin plate wind power blade of pattern stiffening rib, comprises blade body, it is characterized in that: described blade body adopts the uniform thickness sheetmetal to be stamped to form, and described blade body middle part is provided with at least one and strikes out the pattern stiffening rib.
2, band as claimed in claim 1 strikes out the thin plate wind power blade of pattern stiffening rib, it is characterized in that, described thin plate wind power blade foline cross section molded lines is straight line or streamlined curve.
3, band as claimed in claim 1 strikes out the thin plate wind power blade of pattern stiffening rib, it is characterized in that, described blade body is surface plate form or line panel form; Described line face lines is perpendicular to the blade turning radius, and line face gradient is 5 °～30 °.
4, band as claimed in claim 3 strikes out the thin plate wind power blade of pattern stiffening rib, it is characterized in that, described stiffening rib is a long strip, the vertical vane body.
5, band as claimed in claim 1 strikes out the thin plate wind power blade of pattern stiffening rib, it is characterized in that, described stiffening rib is a long strip, and is in an acute angle with blade body one side.
6, band as claimed in claim 1 strikes out the thin plate wind power blade of pattern stiffening rib, it is characterized in that, described stiffening rib is a pancake.
7, band as claimed in claim 1 strikes out the thin plate wind power blade of pattern stiffening rib, it is characterized in that, described stiffening rib height is begun radially to reduce gradually by blade root or reduces gradually toward blade edge along oblique.
8, band as claimed in claim 1 strikes out the thin plate wind power blade of pattern stiffening rib, it is characterized in that, described stiffening rib is 2.
9, band as claimed in claim 1 strikes out the thin plate wind power blade of pattern stiffening rib, it is characterized in that, described stiffening rib is many, arranges along the vein shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202024142U CN201284721Y (en) | 2008-10-27 | 2008-10-27 | Thin-slab wind energy blade with rammed stiffening ribs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202024142U CN201284721Y (en) | 2008-10-27 | 2008-10-27 | Thin-slab wind energy blade with rammed stiffening ribs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284721Y true CN201284721Y (en) | 2009-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202024142U Expired - Fee Related CN201284721Y (en) | 2008-10-27 | 2008-10-27 | Thin-slab wind energy blade with rammed stiffening ribs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284721Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067916A1 (en) * | 2011-11-11 | 2013-05-16 | Zhang Xiangzeng | New blade of composite material for horizontal-axis wind power generator |
| CN106704111A (en) * | 2016-12-12 | 2017-05-24 | 天津明阳风能叶片技术有限公司 | Novel screw type wind energy blade device equipment |
| CN112983558A (en) * | 2021-03-17 | 2021-06-18 | 中国航发动力股份有限公司 | Rotor blade precision forging piece structure and manufacturing method thereof |
-
2008
- 2008-10-27 CN CNU2008202024142U patent/CN201284721Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067916A1 (en) * | 2011-11-11 | 2013-05-16 | Zhang Xiangzeng | New blade of composite material for horizontal-axis wind power generator |
| CN106704111A (en) * | 2016-12-12 | 2017-05-24 | 天津明阳风能叶片技术有限公司 | Novel screw type wind energy blade device equipment |
| CN112983558A (en) * | 2021-03-17 | 2021-06-18 | 中国航发动力股份有限公司 | Rotor blade precision forging piece structure and manufacturing method thereof |
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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: 20090805 Termination date: 20151027 |
|
| EXPY | Termination of patent right or utility model |