CN103195666A - Connecting structure and method for segmented blades of megawatt fan - Google Patents
Connecting structure and method for segmented blades of megawatt fan Download PDFInfo
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- CN103195666A CN103195666A CN201310108545XA CN201310108545A CN103195666A CN 103195666 A CN103195666 A CN 103195666A CN 201310108545X A CN201310108545X A CN 201310108545XA CN 201310108545 A CN201310108545 A CN 201310108545A CN 103195666 A CN103195666 A CN 103195666A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a connecting structure for segmented blades of a megawatt fan. The connecting structure comprises an embedded barrel at the blade tip section and a bolt at the blade root section, the bolt penetrates into the barrel in the blade tip direction from the blade root direction and is locked with the barrel, and the bolt at the blade root section is fixed through a fastener. The invention further discloses a connecting method for segmented blades of the megawatt fan. The connecting method includes that segmentation is performed on the blades of the fan at the position of 12-20 meters, and during production of segmented blades, the barrel is embedded at the blade tip section which is connected in sections, wherein the barrel and the blades are integrally formed through vacuum infusion; and after the production of segmented blades, the bolt penetrates into the barrel in the blade tip direction from the blade root direction, and the bolt at the root is fixed by a hex nut after being locked with the barrel. Two ends of blades are fixedly connected through the embedded barrel and the bolt, the connecting ends are convenient to operate, the lengths of blades during transportation are shortened, and the transportation safety is improved simultaneously.
Description
Technical field
The present invention relates to a kind of blade linkage structure, relate in particular to a kind of linkage structure of MW class blower fan subsection blade.
The invention still further relates to a kind of connecting means of MW class blower fan subsection blade.
Background technique
Making an announcement in the recent period along with National Energy Board is planned, encouraging regional exploitation wind-powered electricity generation resources as much as possible such as Hunan, Hubei, Jiangxi, Henan, Sichuan, Chongqing, Guangdong, Guangxi, Guizhou.Carry out the big base of wind-powered electricity generation that distributing inserts for having ready conditions, the attitude of encouragement is also held by National Energy Board.Recently, National Energy Board's new energy and the vice chief of department Shi Lishan of renewable energy sources department represent that outside at present big base wind-powered electricity generation is built, following country will be supported in the not too abundant low wind speed and wind electric field of area development of resource, advocate the distributing exploitation.It is reported, strengthen low wind speed and wind and establish by cable to send out and be included into " 12 " wind-powered electricity generation development plan, intend improving its proportion in whole wind-powered electricity generation exploitation in future layout on the policy.The analyst points out that under the situation that the wind-powered electricity generation exploitation in the abundant area of wind resource has hastened towards saturation at present, the low wind speed and wind electric field exploitation that resource is owed abundant area will welcome the huge market space.
National grid energy strategy and the chief of project study institute build the ornamental column in vain and show, at present National Energy Board steps up wind-powered electricity generation together with relevant departments and inserts the research of dissolving of electrical network and market, wherein establishes by cable with the low wind speed and wind of bringing up again out electrical network receiving end provinces and regions and sends out and the electrical network problem of dissolving.He represents, the following wind-powered electricity generation installation scale target that will strengthen these low wind speed areas, develop effectively replenishing of general layout as the electrical network that big base is inserted outside the big electrical network, the developing goal of these provinces and regions is expected to bring up to 20% from less than 10%, and encourages to disperse the access electrical network.This means, in 100,000,000 kilowatts of wind-powered electricity generation installation targets that " 12 " planning proposes, to have 2,000 ten thousand kilowatts share to belong to low wind speed and wind establishes by cable and sends out, though national policy is being encouraged the low wind speed generating of exploitation southern area, but the technical issues that need to address are still a lot, distinct issues are: low wind speed zone needs longer blade catch wind energy, but southern mountain height, road is narrow, radius of turn is little, and transportation becomes a most outstanding problem.Therefore, if can be with blade section, be transported to the wind field assembling, will be one of the most effective way that addresses this problem.Therefore, need provide a kind of new technological scheme to solve the problems referred to above.
Summary of the invention
Length when the linkage structure that the purpose of this invention is to provide a kind of MW class blower fan subsection blade, this linkage structure can shorten the blade transportation improves the Security of transporting.
Another object of the present invention provides a kind of connecting means of MW class blower fan subsection blade.
The technical solution used in the present invention is:
A kind of linkage structure of MW class blower fan subsection blade, this linkage structure comprises swivel nut that the blade tip section is pre-buried and the bolt of blade root section, described bolt is through at from the blade root direction in the swivel nut of blade tip direction, described bolt and swivel nut locking, and the bolt of blade root section is fixed by fastening piece.
Described fastening piece is hexagon nut.
A kind of connecting means of MW class blower fan subsection blade may further comprise the steps: fan blade carries out segmentation at 12-20 rice, and when subsection blade was made, the blade tip section that connects in segmentation was embedded into swivel nut, and this swivel nut and blade vacuum perfusion are one-body molded; After subsection blade completes, utilize bolt to penetrate from the blade root direction in the swivel nut of blade tip direction, fix the bolt of root after bolt and the swivel nut locking with hexagon nut, can be with two sections blade successful connections.
Beneficial effect of the present invention: utilize pre-buried swivel nut to be connected the two ends of blade with bolt, the connecting end operation is comparatively convenient, in the length when shortening the blade transportation, has improved the Security of transportation.
Description of drawings
Fig. 1 is blade section schematic representation of the present invention.
Fig. 2 is the connection diagram of linkage structure among Fig. 1.
Wherein: 1, blade root section, 2, the blade tip section, 3, linkage structure, 4, swivel nut, 5, bolt, 6, hexagon nut.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Following examples only are used for explanation the present invention, are not used for limiting protection scope of the present invention.
As illustrated in fig. 1 and 2, the linkage structure of a kind of MW class blower fan subsection blade of the present invention, this linkage structure 3 comprises swivel nut 4 that blade tip section 2 is pre-buried and the bolt 5 of blade root section 1, bolt 5 is through in the swivel nut 4 of blade tip direction from the blade root direction, bolt 5 and swivel nut 4 lockings, the bolt 5 of blade root section 1 is fixing by hexagon nut 6.
A kind of connecting means of MW class blower fan subsection blade may further comprise the steps: fan blade carries out segmentation at 12-20 rice, and when subsection blade was made, the blade tip section 2 that connects in segmentation was embedded into swivel nut 4, and this swivel nut 4 is one-body molded with the blade vacuum perfusion; After subsection blade completes, utilize bolt 5 to penetrate from the blade root direction in the swivel nut 4 of blade tip direction, after locking with swivel nut 4, fixes by bolt 5 bolt 5 of root with hexagon nut 6, and can be with two sections blade successful connections.
This connecting means is carried out segmentation by fan blade at 12-20 rice, utilizes pre-buried swivel nut 4 to fixedly connected the two ends of blade with bolt 5, and the connecting end operation is comparatively convenient, in the length when shortening the blade transportation, has improved the Security of transportation.
Claims (3)
1. the linkage structure of a MW class blower fan subsection blade, it is characterized in that: this linkage structure comprises swivel nut that the blade tip section is pre-buried and the bolt of blade root section, described bolt is through at from the blade root direction in the swivel nut of blade tip direction, described bolt and swivel nut locking, and the bolt of blade root section is fixed by fastening piece.
2. the linkage structure of a kind of MW class blower fan subsection blade according to claim 1, it is characterized in that: described fastening piece is hexagon nut.
3. the connecting means of a MW class blower fan subsection blade, it is characterized in that, may further comprise the steps: fan blade carries out segmentation at 12-20 rice, when subsection blade is made, the blade tip section that connects in segmentation is embedded into swivel nut, and this swivel nut and blade vacuum perfusion are one-body molded; After subsection blade completes, utilize bolt to penetrate from the blade root direction in the swivel nut of blade tip direction, fix the bolt of root after bolt and the swivel nut locking with hexagon nut, can be with two sections blade successful connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108545XA CN103195666A (en) | 2013-04-01 | 2013-04-01 | Connecting structure and method for segmented blades of megawatt fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108545XA CN103195666A (en) | 2013-04-01 | 2013-04-01 | Connecting structure and method for segmented blades of megawatt fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103195666A true CN103195666A (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310108545XA Pending CN103195666A (en) | 2013-04-01 | 2013-04-01 | Connecting structure and method for segmented blades of megawatt fan |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600498A (en) * | 2013-11-07 | 2014-02-26 | 重庆通用工业(集团)有限责任公司 | Methods for manufacturing and assembling sectional type wind power blade |
| CN112523934A (en) * | 2020-12-04 | 2021-03-19 | 上海电气风电集团股份有限公司 | Sectional type blade, manufacturing process and wind generating set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060083611A1 (en) * | 1999-12-24 | 2006-04-20 | Aloys Wobben | Butt connection for hollow profile members |
| CN201763547U (en) * | 2010-09-01 | 2011-03-16 | 广东明阳风电产业集团有限公司 | Fan blade vane for large wind generator set |
| CN102192110A (en) * | 2011-06-12 | 2011-09-21 | 中国科学院工程热物理研究所 | Subsection blade of wind turbine and assembling method thereof |
| CN102562486A (en) * | 2012-02-07 | 2012-07-11 | 国电联合动力技术有限公司 | Sectional wind turbine blade and installation method thereof |
| CN203239505U (en) * | 2013-04-01 | 2013-10-16 | 南通东泰新能源设备有限公司 | Connecting structure of segmented blades for megawatt-level fan |
-
2013
- 2013-04-01 CN CN201310108545XA patent/CN103195666A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060083611A1 (en) * | 1999-12-24 | 2006-04-20 | Aloys Wobben | Butt connection for hollow profile members |
| CN201763547U (en) * | 2010-09-01 | 2011-03-16 | 广东明阳风电产业集团有限公司 | Fan blade vane for large wind generator set |
| CN102192110A (en) * | 2011-06-12 | 2011-09-21 | 中国科学院工程热物理研究所 | Subsection blade of wind turbine and assembling method thereof |
| CN102562486A (en) * | 2012-02-07 | 2012-07-11 | 国电联合动力技术有限公司 | Sectional wind turbine blade and installation method thereof |
| CN203239505U (en) * | 2013-04-01 | 2013-10-16 | 南通东泰新能源设备有限公司 | Connecting structure of segmented blades for megawatt-level fan |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600498A (en) * | 2013-11-07 | 2014-02-26 | 重庆通用工业(集团)有限责任公司 | Methods for manufacturing and assembling sectional type wind power blade |
| CN103600498B (en) * | 2013-11-07 | 2017-06-23 | 吉林重通成飞新材料股份公司 | The manufacture of segmented wind electricity blade and assembly method |
| CN112523934A (en) * | 2020-12-04 | 2021-03-19 | 上海电气风电集团股份有限公司 | Sectional type blade, manufacturing process and wind generating set |
| CN112523934B (en) * | 2020-12-04 | 2022-06-24 | 上海电气风电集团股份有限公司 | Sectional type blade, manufacturing process and wind generating set |
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Application publication date: 20130710 |