CN202484038U - Embedded screw sleeve for high-power wind power generation blade - Google Patents
Embedded screw sleeve for high-power wind power generation blade Download PDFInfo
- Publication number
- CN202484038U CN202484038U CN2012200090095U CN201220009009U CN202484038U CN 202484038 U CN202484038 U CN 202484038U CN 2012200090095 U CN2012200090095 U CN 2012200090095U CN 201220009009 U CN201220009009 U CN 201220009009U CN 202484038 U CN202484038 U CN 202484038U
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- CN
- China
- Prior art keywords
- blade
- screw sleeve
- steel pipe
- power generation
- wind power
- 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 - Lifetime
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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
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Abstract
The utility model relates to an embedded screw sleeve for a high-power wind power generation blade. The embedded screw sleeve comprises a steel tube, wherein the outer side of the steel tube has an external ring slot structure; a first internal thread structure is formed on the inner wall of a long section of the steel tube; and a second internal thread structure is formed at one end of the steel tube and connected with an internal hexagonal screw plug in a rotatable manner. The embedded screw sleeve has the advantages that fiber textures of the blade cannot be destroyed, and the intensity of the blade is enhanced; the embedded screw sleeve is convenient to assemble and can be directly embedded into the blade.
Description
Technical field
The utility model relates to a kind of wind power generation blade, relates in particular to the pre embedded bolt cover in this wind power generation blade.
Background technique
In recent years, under the background of national policy support and energy supply anxiety, the wind power generating set of China is developed to 5 megawatts of today, 6 megawatts from 0.75 megawatt, 1.5 megawatts, 2.5 megawatts, and the wind-power electricity generation group more and more trends towards high-power in the past.In order to be fully utilized; It is longer that the blade that matches with it also becomes thereupon; Total length can reach 50-60 rice, and in order to guarantee blade Security, reliability in use, and the diameter of having to strengthen blade guarantees the join strength between blade and wheel hub.
As shown in Figure 1: be to adopt T type nut 10 pre-buried in blade 20 in the existing technology, the pre-buried mode of T type nut is to imbed after the punching on the blade of moulding again, and then blade is carried out follow-up reparation.Such mode can be destroyed the fibrous structure of blade.
Summary of the invention
The utility model technical issues that need to address have provided a kind of pre embedded bolt cover that is used for the high-power wind power generation blade, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is realized through following technological scheme:
The utility model comprises: steel pipe; The outside of described steel pipe is the annular groove outside structure; At described steel pipe one a long section inwall first female thread structure is set; End at described steel pipe is provided with second female thread structure; Described second female thread structure is rotatably connected with a hexagonal socket head plug.
Compared with prior art, the beneficial effect of the utility model is: can not destroy the fibrous structure of blade, improve the intensity of blade, and easy for installation, can be directly pre-buried in blade.
Description of drawings
Fig. 1 is that T type nut is pre-buried in the structural representation of blade in the existing technology.
Fig. 2 is the structural representation of the utility model.
Fig. 3 adopts the pre embedded bolt of the utility model to overlap the structural representation that is connected with blade.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Visible by Fig. 2: the utility model comprises: steel pipe 1; The outside of described steel pipe 1 is the annular groove outside structure; At described steel pipe 1 one long section inwalls 3 first female thread structure is set; End at described steel pipe 1 is provided with second female thread structure 4; Described second female thread structure 4 is rotatably connected with a hexagonal socket head plug 5.
The two ends of described steel pipe 1 are respectively a milling plane.
The utility model endoporus is darker, needs customization external diameter φ 63, the steel pipe of endoporus φ 29 and add jumping chisel, the lengthening screw tap is processed.For guaranteeing the perpendicularity requirement of screw thread, need preparatory boring endoporus to lead, and then auger shell line bottom outlet.During tapping, screw tap takes place twists into two parts phenomenon too greatly in order to avoid direct tapping torsion, must adopt twice tapping, promptly need attack in advance earlier, guarantees accuracy of thread and reach.
Use in order to satisfy 10 grades of mechanical propertys of ISO898-2 and to adapt under low temperature environment, material selection the 42CrMoA alloyed steel, this material is through after the suitable heat treatment process, cold impact value Akv >=27J has guaranteed safe in utilization.
Cylindrical needs the numerical control turning circular groove, can increase the frictional force between blade and the screw rod cover, avoids the screw rod cover to be subjected to displacement.
Numerical control Vehicle Processing M33 * 2 internal threads, and hexagonal throat taps in being screwed into prevent blade when The pre-heat treatment, and silica gel flows into pre-buried in the screw rod cover of blade, and internal thread is stopped up in the back of solidifying to be cooled, influences blade and finally installs.
For can be better bonding with blade, Shot Blasting need be carried out in screw rod cover surface, needs during ball blast block up into screw rod cover two with stopper, prevents that shot from embedding screw thread, influences screwing between screw thread.
Visible by Fig. 3: the pre embedded bolt cover 30 of the utility model directly is embedded in the inside when blade 20 moulding; So the fibrous structure of blade interior is totally continuous, be different from T type nut and need punch pre-buriedly, increased the intensity of blade greatly; Practice thrift cost of production, improved manufacturing efficiency.
The utility model promptly can guarantee the join strength of blade and wheel hub, can not reduce the product of blade self intensity again.So not only can reduce the cost of production of blade greatly, also make this series products on market, have more competitive ability.
Claims (2)
1. a pre embedded bolt cover that is used for the high-power wind power generation blade is characterized in that comprising: steel pipe; The outside of described steel pipe is the annular groove outside structure; At described steel pipe one a long section inwall first female thread structure is set; End at described steel pipe is provided with second female thread structure; Described second female thread structure is rotatably connected with a hexagonal socket head plug.
2. the pre embedded bolt cover that is used for the high-power wind power generation blade according to claim 1, it is characterized in that: the two ends of described steel pipe are respectively a milling plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200090095U CN202484038U (en) | 2012-01-10 | 2012-01-10 | Embedded screw sleeve for high-power wind power generation blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200090095U CN202484038U (en) | 2012-01-10 | 2012-01-10 | Embedded screw sleeve for high-power wind power generation blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484038U true CN202484038U (en) | 2012-10-10 |
Family
ID=46958464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200090095U Expired - Lifetime CN202484038U (en) | 2012-01-10 | 2012-01-10 | Embedded screw sleeve for high-power wind power generation blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484038U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847594A (en) * | 2014-02-13 | 2015-08-19 | 上海金马高强紧固件有限公司 | High-strength pre-buried screw sleeve used in high-power wind power blade and manufacturing method thereof |
| CN105465141A (en) * | 2016-01-05 | 2016-04-06 | 中复碳芯电缆科技有限公司 | Pultrusion type embedded blade root connector for wind-driven generator blades and preparation method thereof |
| CN105736256A (en) * | 2016-03-25 | 2016-07-06 | 吉林重通成飞新材料股份公司 | Embedded bolt sleeve for megawatt wind power blade |
| CN115111248A (en) * | 2022-08-02 | 2022-09-27 | 远景能源有限公司 | Embedded bolt sleeve and wind driven generator |
-
2012
- 2012-01-10 CN CN2012200090095U patent/CN202484038U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847594A (en) * | 2014-02-13 | 2015-08-19 | 上海金马高强紧固件有限公司 | High-strength pre-buried screw sleeve used in high-power wind power blade and manufacturing method thereof |
| CN105465141A (en) * | 2016-01-05 | 2016-04-06 | 中复碳芯电缆科技有限公司 | Pultrusion type embedded blade root connector for wind-driven generator blades and preparation method thereof |
| CN105736256A (en) * | 2016-03-25 | 2016-07-06 | 吉林重通成飞新材料股份公司 | Embedded bolt sleeve for megawatt wind power blade |
| CN115111248A (en) * | 2022-08-02 | 2022-09-27 | 远景能源有限公司 | Embedded bolt sleeve and wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |