CN203374434U - Paving layer structure of blade root embedded bolt sleeves - Google Patents
Paving layer structure of blade root embedded bolt sleeves Download PDFInfo
- Publication number
- CN203374434U CN203374434U CN201320426988.9U CN201320426988U CN203374434U CN 203374434 U CN203374434 U CN 203374434U CN 201320426988 U CN201320426988 U CN 201320426988U CN 203374434 U CN203374434 U CN 203374434U
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- CN
- China
- Prior art keywords
- blade root
- embedded bolt
- main composite
- composite bed
- root pre
- 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
- 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
Abstract
The utility model relates to a paving layer structure of blade root embedded bolt sleeves, in particular to the paving layer structure used for stable transition of the embedded bolt sleeves and blade root main composite layers. The paving layer structure comprises an upper main composite layer and a lower main composite layer, a plurality of blade root embedded bolt sleeves and a plurality of glass fiber bars are arranged between the upper main composite layer and the lower main composite layer and are distributed at intervals, and a glass fiber filament layer covers one blade root embedded bolt sleeve. The paving layer structure is simple, compact and reasonable, simple and convenient to manufacture and high in safety coefficient, and production cost is lowered due to the fact that a large drilling machine tool s not needed.
Description
Technical field
The utility model relates to a kind of laying structure of blade root pre-embedded bolt cover, specifically the laying structure with the smooth transition of blade root master composite bed for the pre-embedded bolt cover.
Background technique
Nervous in global energy, as to focus on environmental protection today, oneself becomes the importance of incontrovertible sustainable development source Renewable Energy Development.Wind energy is a kind of clean renewable energy sources.According to World Meteorological Organization (WMO), analyze, the total wind energy in the whole world is 3x1017kW, and wherein available wind energy is 2x1010KW.In wind power generating set, blade belongs to crucial composite material component.Fan blade has that size is large, complex contour, required precision are high, high to the strength and stiffness requirement, surface roughness require high, require the characteristics such as mass distribution good uniformity.Be the most crucial part of whole blower fan, account for whole wind turbine and form this 1/4 to 1/3.
Bolt in wind-driven generator mainly plays connection, fastening effect.Fastening piece consumption on blower fan is a lot, reaches several thousand, mainly concentrates on two positions: blade connects fastening piece and is connected fastening piece with the tower cylinder.The high-strength fastening piece adopted must guarantee the reliable connection of each parts under various complex environments, stress.The bolt great majority that use in blade at present are M30 and M36, and 10.9 grades, the quality that affects bolt not only depends on the raw material of bolt, and more crucial is to depend on the Placement of bolt sleeve in blade, i.e. the design of bolt sleeve and the transition of blade root master composite bed.
Adopt the ply sequence of T-shaped bolt in fan blade, the blade root thickness of T-shaped bolt needs the 90mm left and right, and the blade root laying is thick; While making large blade, the blade root circular diameter is large (more than being greater than 2000mm), and due to the contraction of resin, the circumference ratio is easier to deform, and the wall thickness performance of the rear blade root bolt of punching is inconsistent, the follow-up secondary pouring that needs.The drilling precision of T-shaped bolt, the flatness of packing end face, the drilling precision of axial bore and radial hole requires high, the blade root bolt of the rear punching bolt large-scale punch device that need to start.Need at present to adopt the lathe of import could meet production requirement.Because nut at least is twice than bolt hole, therefore, on identical blade root circumference, T-shaped bolt number is come less than the quantity of pre-buried bolt sleeve, affects being uniformly distributed of bolt pretightening.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby the laying structure that provides a kind of blade root pre-embedded bolt simple for production, that safety coefficient is high to overlap realizes the smooth transition of pre-embedded bolt cover and blade root master composite bed.
The technological scheme provided according to the utility model, the laying structure of blade root pre-embedded bolt cover comprises main composite bed and lower main composite bed, it is characterized in that: a plurality of blade root pre-embedded bolt covers and a plurality of glass rod are set between upper main composite bed and lower main composite bed, a plurality of blade root pre-embedded bolt covers and a plurality of glass rod are spaced apart, each blade root pre-embedded bolt cover surface coverage glass fiber yarn layer.
Further, the space between blade root pre-embedded bolt cover and glass rod arranges blade root pre-embedded bolt cover edge strip.
Further, upper main composite bed and lower main composite bed adopt multilayer glass layer of cloth pressure to be connected to form.
Further, glass-fiber-fabric is 15 ~ 25 layers.
Compared with the prior art the utility model has the following advantages:
The utility model is simple in structure, compact, reasonable; Simple for production; Safety coefficient is high; Not needing increases large-scale punching machine tool, has reduced cost of production.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Description of reference numerals: main composite bed under 1-blade root pre-embedded bolt cover edge strip, 2-blade root pre-embedded bolt cover, 3-glass fiber yarn layer, 4-glass rod, the upper main composite bed of 5-, 6-.
Embodiment
Following the utility model is further described in connection with the embodiment in accompanying drawing:
As shown in Figure 1, the utility model mainly comprises main composite bed 5 and lower main composite bed 6, a plurality of blade root pre-embedded bolt covers 2 and a plurality of glass rod 4 are set between upper main composite bed 5 and lower main composite bed 6, and a plurality of blade root pre-embedded bolt covers 2 and a plurality of glass rod 4 are spaced apart.
Each blade root pre-embedded bolt overlaps 2 surface coverage glass fiber yarn layers 3.
Space between described blade root pre-embedded bolt cover 2 and glass rod 4 arranges blade root pre-embedded bolt cover edge strip 1, fills up space by blade root pre-embedded bolt cover edge strip 1, fixedly the position of blade root pre-embedded bolt cover 2 and glass rod 4.
Described main composite bed 5 and lower main composite bed 6 adopt multilayer glass layer of cloth to press and are connected to form.Described glass-fiber-fabric is 15 ~ 25 layers.
Working principle of the present utility model is: when work, pretightening force wreathing and the glass fiber yarn layer 3 surperficial by it of blade root pre-embedded bolt cover transmitted, and then by blade root pre-embedded bolt cover edge strip 1 and glass rod 4, is passed to upper main composite bed 5 and lower main composite bed 6.The pre-embedded bolt cover belongs to metallic material, and its rigidity is high, with composite material interface is difficult, merges.The main composite bed of blade root belongs to glass fibre reinforced plastic material, has rigidity low, and intensity is high, is easy to pour into the all-in-one-piece characteristics.The present invention designs by Rational structure, realizes the smooth transition of blade root pre-embedded bolt cover and main composite bed.
Claims (4)
1. the laying structure of blade root pre-embedded bolt cover, comprise main composite bed (5) and lower main composite bed (6), it is characterized in that: a plurality of blade root pre-embedded bolt covers (2) and a plurality of glass rod (4) are set between upper main composite bed (5) and lower main composite bed (6), a plurality of blade root pre-embedded bolt covers (2) and a plurality of glass rod (4) are spaced apart, each blade root pre-embedded bolt cover (2) surface coverage glass fiber yarn layer (3).
2. the laying structure that blade root pre-embedded bolt as claimed in claim 1 overlaps is characterized in that: the space between described blade root pre-embedded bolt cover (2) and glass rod (4) arranges blade root pre-embedded bolt cover edge strip (1).
3. the laying structure that blade root pre-embedded bolt as claimed in claim 1 overlaps is characterized in that: described main composite bed (5) and lower main composite bed (6) adopt multilayer glass layer of cloth to press and are connected to form.
4. the laying structure that blade root pre-embedded bolt as claimed in claim 3 overlaps, it is characterized in that: described glass-fiber-fabric is 15 ~ 25 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320426988.9U CN203374434U (en) | 2013-07-17 | 2013-07-17 | Paving layer structure of blade root embedded bolt sleeves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320426988.9U CN203374434U (en) | 2013-07-17 | 2013-07-17 | Paving layer structure of blade root embedded bolt sleeves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374434U true CN203374434U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320426988.9U Expired - Fee Related CN203374434U (en) | 2013-07-17 | 2013-07-17 | Paving layer structure of blade root embedded bolt sleeves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9970304B2 (en) | 2015-07-22 | 2018-05-15 | General Electric Company | Rotor blade root assembly for a wind turbine |
| US10060411B2 (en) | 2015-07-22 | 2018-08-28 | General Electric Company | Rotor blade root assembly for a wind turbine |
-
2013
- 2013-07-17 CN CN201320426988.9U patent/CN203374434U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9970304B2 (en) | 2015-07-22 | 2018-05-15 | General Electric Company | Rotor blade root assembly for a wind turbine |
| US10060411B2 (en) | 2015-07-22 | 2018-08-28 | General Electric Company | Rotor blade root assembly for a wind turbine |
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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: 20140101 Termination date: 20150717 |
|
| EXPY | Termination of patent right or utility model |