CN207864088U - A kind of blade root fastenings device of marine tidal-current energy Wind turbines - Google Patents
A kind of blade root fastenings device of marine tidal-current energy Wind turbines Download PDFInfo
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- CN207864088U CN207864088U CN201721656433.8U CN201721656433U CN207864088U CN 207864088 U CN207864088 U CN 207864088U CN 201721656433 U CN201721656433 U CN 201721656433U CN 207864088 U CN207864088 U CN 207864088U
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- flange
- blade root
- flange disk
- current energy
- disk
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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
- Y02E10/20—Hydro energy
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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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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model discloses a kind of blade root fastenings devices of marine tidal-current energy Wind turbines, including blade root flange, it includes the intermediate circular tube structure with transverse sealing partition board and the first flange disk and second flange disk that are separately positioned on circular tube structure both ends, first flange disk with pitch variable bearings for being bolted, and second flange disk with blade root end for being bolted.Several bolts hole are all provided on first flange disk and second flange disk, the bolt hole on first flange disk is blind hole, and the bolt hole on second flange disk is through-hole.The annular groove for " O " type sealing ring to be arranged is equipped on first flange disk and second flange disk.It is cylindrical structure that the centre, which has the circular tube structure of transverse sealing partition board,.The utility model, can be completely separated with wheel hub by blade by the way that ring flange is respectively set in the circular tube structure of sealing or cylinder both ends, efficiently solves the risk that marine tidal-current energy unit leaks caused by blade injury or deformation, and then promote the reliability of entire unit.
Description
Technical field
The utility model is related to marine tidal-current energy Wind turbines technical fields, more particularly to a kind of leaf of marine tidal-current energy Wind turbines
Root attachment device.
Background technology
As ocean development is movable deep, marine tidal-current energy generation technology is used widely.The leaf of marine tidal-current energy generator group
Piece mostly uses greatly composite material and is made, and blade is to need to solve with how pitch variable bearings connection place effectively seals in the seawater
Critical problem, can the quality of performance directly influences marine tidal-current energy generator group work normally, or even directly influence
The safety of unit and service life.
Currently, marine tidal-current energy generator group is typically located at lower 20 meters to 30 meters of the depth of water in sea level, blade composite with
Pitch variable bearings are interfaced directly to together, and centre is sealed using one or two " O " type circle, although such encapsulating method facilitates letter
It is single, but such sealing structure has a disadvantage that：1. blade itself is composite material, impregnating in the seawater may occur for a long time
Modification causes to leak at sealing.2. blade itself is cracked or fracture, seawater are directly entered in wheel hub cavity body, cause whole
The damage of a unit.
It can be seen that the blade connected mode of above-mentioned existing marine tidal-current energy Wind turbines obviously there are still have it is inconvenient with it is scarce
It falls into, and needs to be further improved.A kind of blade root fastenings device of new marine tidal-current energy Wind turbines how is founded, keeps it anti-
Only seawater leakage problem caused by deformable blade or fracture occurs, and becoming current industry pole needs improved target.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of blade root fastenings devices of marine tidal-current energy Wind turbines, make it
Prevent seawater leakage problem caused by deformable blade or fracture from occurring, to overcome existing marine tidal-current energy wind power generation unit blade to connect
The deficiency of mode.
In order to solve the above technical problems, the utility model provides a kind of blade root fastenings device of marine tidal-current energy Wind turbines, packet
Blade root flange is included, the blade root flange includes the intermediate circular tube structure with transverse sealing partition board and is separately positioned on the pipe
The first flange disk and second flange disk at structure both ends, the first flange disk with pitch variable bearings for being bolted, institute
Second flange disk is stated for being bolted with blade root end.
As a kind of improvement of the utility model, several bolts are all provided on the first flange disk and second flange disk
Hole, the bolt hole on the first flange disk are blind hole, and the bolt hole on the second flange disk is through-hole.
It is further improved, the end face that the first flange disk connects with the pitch variable bearings is equipped with annular groove I, described
For " O " type sealing ring to be arranged in annular groove I.
It is further improved, the end face that the second flange disk connects with the blade tip is equipped with annular groove II, institute
It states in annular groove II for " O " type sealing ring to be arranged.
It is further improved, the first flange disk is equipped with more than two annular grooves I, is set on the second flange disk
There are two above annular grooves II.
It is further improved, the bolt hole on the first flange disk is located between two annular grooves I, the second flange
Bolt hole on disk is located between two annular grooves II.
It is further improved, it is cylindrical structure that the centre, which has the circular tube structure of transverse sealing partition board,.
It is further improved, the blade root flange is using metal material, integrated formed structure.
By adopting such a design, the utility model has at least the following advantages：
1, the blade root flange of the utility model is in the circular tube structure of sealing or cylinder both ends by being respectively set ring flange,
Blade and wheel hub can be isolated entirely from, the marine tidal-current energy unit caused by blade injury or deformation can be efficiently solved and sent out
The risk of raw leakage, and then promote the reliability of entire marine tidal-current energy Wind turbines.
2, the utility model reduces seawater and enters wheel hub by setting the bolt hole on first flange disk to blind hole
Probability.And by the way that multiple annular grooves are arranged on first flange disk and second flange disk, further improve the blade root flange
With the leakproofness of blade and pitch variable bearings.
Description of the drawings
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand the technology hand of the utility model
Section, below in conjunction with attached drawing, the utility model is described in further detail with specific implementation mode.
Fig. 1 is the cross-sectional view of the structure of the utility model middle period root flange.
Fig. 2 is the application schematic diagram of the utility model marine tidal-current energy Wind turbines blade root fastenings device.
Fig. 3 is the utility model marine tidal-current energy Wind turbines blade root fastenings device using sectional view.
Specific implementation mode
With reference to shown in attached drawing 1 to 3, the blade root fastenings device of the present embodiment marine tidal-current energy Wind turbines, including blade root flange 2.
The blade root flange 2 includes the intermediate circular tube structure 21 with transverse sealing partition board 28 and is separately positioned on the pipe knot
The first flange disk 22 and second flange disk 23 at 21 both ends of structure.The first flange disk 21 with pitch variable bearings 3 by bolt for being connected
It connects, the second flange disk 23 with blade root end for being bolted.Certainly, which also can directly use cylinder
Body structure.The blade root flange is using intermediate closed circular tube structure or cylinder in this way, the cavity and wheel hub that can form blade 1
5 cavitys formed are isolated entirely from, and can effectively avoid since blade 1 damages or deforms and marine tidal-current energy unit is caused to leak
Risk.
Several bolts hole are all provided on the first flange disk 22 and second flange disk 23, the bolt on the first flange disk 22
Hole is blind hole 24, and the bolt hole on the second flange disk 23 is through-hole 25.Blind hole 24 can improve the close of the flange and pitch variable bearings
Feng Xing prevents seawater from entering hub interior.
In order to preferably realize that blade root flange is connected thereto the sealing in face, the first flange disk 22 and 3 phase of pitch variable bearings
The end face connect is equipped with annular groove I 26, in the annular groove I 26 is used to that " O " type sealing ring to be arranged.The second flange disk 23 with
The end face that the blade tip connects is equipped with annular groove II 27, in the annular groove II 27 is used to that " O " type sealing ring to be arranged.
It is further improved, which is equipped with more than two annular grooves I 26, and the first flange disk 22
On bolt hole 24 be at least located between two annular grooves I 26.It is recessed that the second flange disk 23 is equipped with more than two annulars
Slot II 27, and the bolt hole 25 on the second flange disk 23 is at least located between two annular grooves II 27.
The blade root flange is process using metal material, integral forming process in the present embodiment.
The blade root flange of the utility model using intermediate closed circular tube structure or cylinder, the cavity that blade is formed with
The cavity that wheel hub is formed is isolated entirely from, and can effectively avoid due to blade injury or deformation and marine tidal-current energy unit is caused to leak
Risk.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, those skilled in the art make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above,
It falls within the protection scope of the present utility model.
Claims (8)
1. a kind of blade root fastenings device of marine tidal-current energy Wind turbines, which is characterized in that including blade root flange, the blade root flange packet
Include the intermediate first flange disk that there is the circular tube structure of transverse sealing partition board and be separately positioned on the circular tube structure both ends and the
Two ring flanges, the first flange disk with pitch variable bearings for being bolted, and the second flange disk is used for and root end
Portion is bolted.
2. the blade root fastenings device of marine tidal-current energy Wind turbines according to claim 1, which is characterized in that the first flange
Several bolts hole are all provided on disk and second flange disk, the bolt hole on the first flange disk is blind hole, the second flange
Bolt hole on disk is through-hole.
3. the blade root fastenings device of marine tidal-current energy Wind turbines according to claim 1 or 2, which is characterized in that described first
The end face that ring flange connects with the pitch variable bearings is equipped with annular groove I, in the annular groove I is used to that " O " type to be arranged close
Seal.
4. the blade root fastenings device of marine tidal-current energy Wind turbines according to claim 3, which is characterized in that the second flange
The end face that disk connects with the blade root end is equipped with annular groove II, is sealed in the annular groove II for " O " type to be arranged
Circle.
5. the blade root fastenings device of marine tidal-current energy Wind turbines according to claim 4, which is characterized in that the first flange
Disk is equipped with more than two annular grooves I, and the second flange disk is equipped with more than two annular grooves II.
6. the blade root fastenings device of marine tidal-current energy Wind turbines according to claim 5, which is characterized in that the first flange
Bolt hole on disk is located between two annular grooves I, and the bolt hole on the second flange disk is located at two annular grooves II
Between.
7. the blade root fastenings device of marine tidal-current energy Wind turbines according to claim 1, which is characterized in that the centre has
The circular tube structure of transverse sealing partition board is cylindrical structure.
8. the blade root fastenings device of marine tidal-current energy Wind turbines according to claim 1 or claim 7, which is characterized in that the blade root
Flange is using metal material, integrated formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721656433.8U CN207864088U (en) | 2017-12-04 | 2017-12-04 | A kind of blade root fastenings device of marine tidal-current energy Wind turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721656433.8U CN207864088U (en) | 2017-12-04 | 2017-12-04 | A kind of blade root fastenings device of marine tidal-current energy Wind turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864088U true CN207864088U (en) | 2018-09-14 |
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ID=63468149
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721656433.8U Active CN207864088U (en) | 2017-12-04 | 2017-12-04 | A kind of blade root fastenings device of marine tidal-current energy Wind turbines |
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| CN (1) | CN207864088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778455A (en) * | 2019-12-11 | 2020-02-11 | 湘电风能有限公司 | Variable pitch connecting structure of wind generating set |
-
2017
- 2017-12-04 CN CN201721656433.8U patent/CN207864088U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778455A (en) * | 2019-12-11 | 2020-02-11 | 湘电风能有限公司 | Variable pitch connecting structure of wind generating set |
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