CN109505733B - Blade locking device applied to wind turbine generator set - Google Patents
Blade locking device applied to wind turbine generator set Download PDFInfo
- Publication number
- CN109505733B CN109505733B CN201910064478.3A CN201910064478A CN109505733B CN 109505733 B CN109505733 B CN 109505733B CN 201910064478 A CN201910064478 A CN 201910064478A CN 109505733 B CN109505733 B CN 109505733B
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- locking
- blade
- wind turbine
- turbine generator
- generator set
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- 230000007547 defect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008653 root damage Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0244—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0264—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
- F03D7/0268—Parking or storm protection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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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
Abstract
The invention discloses a blade locking device applied to a wind turbine generator, which comprises a locking disc and an electric locking mechanism, wherein the locking disc is arranged on the locking disc; the locking disc is arranged between a blade bearing and a blade root of the wind turbine generator set; the main body of the locking disc is annular, and the inner edge of the annular is provided with a convex part extending towards the direction of the circle center; the boss is provided with a shaft sleeve; the electric locking mechanism comprises a guide seat arranged on a hub web plate of the wind turbine generator set and an electric push rod arranged in the guide seat; the top end of the guide seat is provided with a guide hole; a locking pin in driving connection with the electric push rod is arranged in the guide hole; when the blades are locked, the electric push rod pushes the locking pin into the shaft sleeve of the locking disc. The blade locking form can be applied to the typhoon unit, can achieve higher locking strength, and can achieve the aim of locking the blade more effectively, safely and quickly under complicated and severe wind conditions.
Description
Technical Field
The invention relates to the technical field of blade locking, in particular to a blade locking device applied to a wind turbine generator set.
Background
The prior blade locking device in China is usually in a manual locking or hydraulic locking mode, is fixed by bolts or locking pins, and is fixed in a mode that a blade bearing or a blade root is directly butted with a hub.
The general structure one: the blade locking device is installed on the hub, the locking pin is connected with the locking device main body through a fixing bolt, and the locking pin and the blade bearing gear are engaged for braking. The method has the following defects: through the meshing braking of the locking pin and the blade bearing gear, the locking angle is not fixed, misoperation can be caused when the rotating angle of the blade is inaccurate, the diameter of the locking pin is limited by the space between the teeth, and the locking strength requirement in a typhoon state is difficult to meet.
The second common structure: the blade locking device is fixed on a blade root bolt, the blade and the hub are fixed through a bolt, the blade root bolt needs to be lengthened, and a groove is cut at the corresponding position of the hub. The method has the following defects: the blade locking device is fixed on a blade root bolt, the blade and the hub are fixed through a bolt, the blade root bolt needs to be lengthened, and a groove is cut at the corresponding position of the hub. To the typhoon unit, the operating mode that faces is more complicated abominable, and traditional locking form in case the locking inefficacy can cause the damage to fan important structure such as bearing body or blade root, and the fixing bolt of locking round pin is dismantled repeatedly to the locking needs manual, and during bolt lax or manual operation, the locking round pin easily drops and causes bearing tooth or blade root damage, and under the special operating mode, locking operation in case the error easily causes the threat to the personnel's safety that carries out manual operation locking.
Disclosure of Invention
The invention aims to provide a blade locking device applied to a wind turbine generator set, so as to solve the problems in the prior art.
In order to achieve the aim, the invention provides a blade locking device applied to a wind turbine generator, which comprises a locking disc and an electric locking mechanism; the locking disc is arranged between a blade bearing and a blade root of the wind turbine generator set; the main body of the locking disc is annular, and the inner edge of the annular is provided with a convex part extending towards the direction of the circle center; the boss is provided with a shaft sleeve; the electric locking mechanism comprises a guide seat arranged on a hub web plate of the wind turbine generator set and an electric push rod arranged in the guide seat; the top end of the guide seat is provided with a guide hole; a locking pin in driving connection with the electric push rod is arranged in the guide hole; when the blades are locked, the electric push rod pushes the locking pin into the shaft sleeve of the locking disc.
The blade locking device applied to the wind turbine generator set is characterized in that the main body of the locking disk is provided with a mounting hole for mounting the locking disk between the blade bearing and the blade root.
The blade locking device applied to the wind turbine generator set is characterized in that the shaft sleeve is fixed on the boss through a flange and a screw.
The blade locking device applied to the wind turbine generator set is characterized in that the locking pin is connected with the electric push rod through a pin shaft and a split pin.
The blade locking device applied to the wind turbine generator set is characterized in that the bottom of the guide seat is fixed on a hub web plate through a flange and a screw.
The blade locking device applied to the wind turbine generator set is characterized in that the bottom of the guide seat is of an open structure and is provided with the locking plate; the electric push rod is fixed on the locking plate.
The blade locking device applied to the wind turbine generator set is characterized in that the electric push rod is connected with the locking plate through a pin shaft and a cotter pin.
The blade locking device applied to the wind turbine generator set is characterized in that two sides of the electric push rod are respectively provided with a baffle for fixing and supporting; the bottom of the baffle is fixed on the locking plate.
The blade locking device applied to the wind turbine generator set is characterized in that an oil filling hole is formed in the side wall of the guide hole.
The blade locking device applied to the wind turbine generator set is characterized in that a pressure filling oil cup for filling oil into the guide hole is arranged in the oil filling hole.
Compared with the prior art, the invention has the following beneficial effects:
the blade locking device adopts an electric push rod form and a locking structure of the locking disk, and solves the problem that the requirements of the typhoon unit on the strength, braking force, safety and stability of the blade locking device are higher. The locking is realized by adopting the electric push rod, and compared with a mechanical structure of manual locking, the locking state can be switched more accurately, quickly and conveniently, and the operation is safe. Compared with a hydraulic locking structure, the electric control can reduce the installation space, reduce maintenance and promote static load and is cleaner and more environment-friendly. The locking disc is adopted to avoid the braking structure of the blade root or the blade bearing body, more various structural design requirements can be met, the limitation of the traditional locking structure on the structural form and the size of the locking pin is solved, and the locking angle can be accurately positioned. The influence of locking failure or limit working condition on the blade bearing and the blade root body is greatly reduced.
Drawings
FIG. 1 is a schematic structural view of one embodiment of a locking disk of the present invention;
FIG. 2 is a front view of one embodiment of the motorized locking mechanism of the present invention;
FIG. 3 is a side view of one embodiment of the motorized locking mechanism of the present invention;
FIG. 4 is a bottom view of an embodiment of the electric locking mechanism of the present invention;
fig. 5 is a schematic structural view of the blade locking device of the present invention when installed in a wind turbine.
Detailed Description
The invention will be further described by the following specific examples in conjunction with the drawings, which are provided for illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, the present invention provides a blade locking device applied to a wind turbine, which includes a locking disk 1 and an electric locking mechanism.
The locking disc 1 is arranged between a blade bearing and a blade root of the wind turbine generator set; the main body of the locking disk 1 is annular, and the inner edge of the annular is provided with a convex part 2 extending towards the direction of the circle center; the bulge 2 is provided with a through hole, and a shaft sleeve 3 is arranged in the through hole; the shaft sleeve 3 is provided with a flange edge, the flange edge is provided with a circle of counter bores, and the shaft sleeve 3 is connected with the boss 2 through screws.
The body of the locking disk 1 is provided with mounting holes for mounting the locking disk 1 between the blade bearings and the blade root. According to the pitch angle, when the blade is locked and is used for being shut down under the working condition, namely the feathering angle of the fan, the protruding parts 2 and the shaft sleeves 3 at two different angles can be designed as redundancy, and the locking disc 1 can be ensured to normally work by changing the angle under the condition that one shaft sleeve 3 is damaged.
The electric locking mechanism comprises a guide seat 4 arranged on a hub web plate of the wind turbine generator and an electric push rod 5 arranged in the guide seat 4; the bottom of the guide seat 4 is of a flange structure, and a circle of through holes are formed in the flange; the middle part of the guide seat 4 is of a conical cavity structure, and one side of the conical cavity is provided with a right-angle-shaped protruding structure matched with the local shape of the electric push rod 5 and used for limiting the electric push rod 5 in the guide seat 4; the top end of the guide seat 4 is provided with a guide hole; a counter bore is arranged on the side wall of the guide hole and serves as an oil injection hole for injecting oil during maintenance so as to achieve the purpose of lubrication. A straight-through type pressure filling oil cup 11 for filling oil into the guide hole is arranged in the oil filling hole.
The bottom of the guide seat 4 is fixed on the hub web plate through a flange and a screw. The bottom of the guide seat 4 is of an opening structure and is provided with a locking plate 9; the locking plate 9 is connected with the guide seat 4 through a bolt 12; two sides of the electric push rod 5 are respectively provided with an inclined baffle 10 for fixedly supporting the electric push rod 5; the bottom of the baffle 10 is fixed to the locking plate 9 by bolts 12. The bottom of the electric push rod 5 is fixed on a locking plate 9 through a pin shaft 7 and a cotter pin 8. A cylindrical locking pin 6 in driving connection with the electric push rod 5 is arranged in the guide hole; the locking pin 6 is connected to the driving part of the power push rod 5 through a pin 13 and a cotter pin 14.
When the blades are locked, the electric push rod 5 pushes the locking pin 6 into the shaft sleeve 3 of the locking disc 1; when the blades are unlocked, the electric push rod 5 retracts the locking pin 6 into the guide seat 4.
The locking principle of the blade locking device is as follows: because the guide seat 4 is fixed on the hub web, the blade bearing outer ring is also fixed on the hub web, the angle position of the locking pin 6 is fixed and unique relative to the blade bearing outer ring, and the locking disc 1 is fixed between the blade bearing inner ring and the blade root and is fixed and unique relative to the blade bearing and the blade root, after the locking pin 6 is tightly combined with the locking disc 1, the blade bearing inner ring and the blade outer ring can not perform relative motion of circumferential angles, so that the blade pitch angle is locked.
In conclusion, the blade locking form of the invention can be applied to a typhoon unit, can achieve higher locking strength, can achieve the aim of locking the blade more effectively, safely and rapidly under the condition of complicated and severe wind conditions, and is currently applied to a 2.1MW and 2.5MW typhoon unit.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (7)
1. A blade locking device applied to a wind turbine is characterized by comprising a locking disc and an electric locking mechanism; the locking disc is arranged between a blade bearing and a blade root of the wind turbine generator set; the main body of the locking disc is annular, and the inner edge of the annular is provided with a convex part extending towards the direction of the circle center; the boss is provided with a shaft sleeve; the electric locking mechanism comprises a guide seat arranged on a hub web plate of the wind turbine generator set and an electric push rod arranged in the guide seat; the top end of the guide seat is provided with a guide hole; a locking pin in driving connection with the electric push rod is arranged in the guide hole; when the blades are locked, the electric push rod pushes the locking pin into the shaft sleeve of the locking disc, the bottom of the guide seat is of an open structure and is provided with a locking plate, the electric push rod is connected with the locking plate through a pin shaft and the open pin, and two sides of the electric push rod are respectively provided with a baffle plate for fixing and supporting; the bottom of the baffle is fixed on the locking plate.
2. The blade locking device applied to the wind turbine generator set according to claim 1, wherein the locking disk is provided at a body thereof with a mounting hole for mounting the locking disk between the blade bearing and the blade root.
3. The blade locking device applied to the wind turbine generator set according to claim 1, wherein the bushing is fixed to the boss by a flange and a screw.
4. The blade locking device applied to the wind turbine generator set according to claim 1, wherein the locking pin is connected to the power push rod through a pin shaft and a cotter pin.
5. The blade locking device applied to the wind turbine generator set according to claim 1, wherein the bottom of the guide holder is fixed on the hub web by a flange and a screw.
6. The blade locking device applied to the wind turbine generator set according to claim 1, wherein an oil hole is provided on a side wall of the guide hole.
7. The blade locking device applied to the wind turbine generator set according to claim 6, wherein a pressure filling oil cup for filling oil into the guide hole is provided in the oil filling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064478.3A CN109505733B (en) | 2019-01-23 | 2019-01-23 | Blade locking device applied to wind turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064478.3A CN109505733B (en) | 2019-01-23 | 2019-01-23 | Blade locking device applied to wind turbine generator set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109505733A CN109505733A (en) | 2019-03-22 |
| CN109505733B true CN109505733B (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910064478.3A Active CN109505733B (en) | 2019-01-23 | 2019-01-23 | Blade locking device applied to wind turbine generator set |
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| Country | Link |
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| CN (1) | CN109505733B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345004A (en) * | 2019-06-24 | 2019-10-18 | 安徽鼎博新能源科技发展有限公司 | A kind of wind-driven generator blade locking seat structure |
| CN110566419B (en) * | 2019-09-26 | 2023-04-07 | 北京金风科创风电设备有限公司 | Blade locking device, hub, impeller and wind generating set |
| CN113719405B (en) * | 2020-05-26 | 2023-10-13 | 金风科技股份有限公司 | Wind generating set and hub and impeller thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2886858A1 (en) * | 2013-12-19 | 2015-06-24 | Acciona Windpower S.a. | Wind turbine with blade pitch system |
| CN207500044U (en) * | 2017-11-28 | 2018-06-15 | 北京国电思达科技有限公司 | A kind of device positioned for wind power generation unit blade with installing |
| CN207500062U (en) * | 2017-11-07 | 2018-06-15 | 沈阳化工大学 | The electronic impeller lock of wind-driven generator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009008607A1 (en) * | 2009-02-12 | 2010-08-19 | Nordex Energy Gmbh | Device for locking a rotor blade of a wind energy plant |
| CN101915211B (en) * | 2010-08-19 | 2012-05-30 | 三一电气有限责任公司 | Wind turbine generator system and pitch system applied to same |
| DE102010062418B9 (en) * | 2010-12-03 | 2016-12-08 | AVAILON GmbH | Method and device for rotating a robot blade bearing on wind turbines without the use of a mobile crane |
| KR101571312B1 (en) * | 2014-06-27 | 2015-11-24 | 삼성중공업 주식회사 | Apparatus for fixing |
| CN205101175U (en) * | 2015-11-12 | 2016-03-23 | 湘电风能有限公司 | Directly drive type aerogenerator blade locking device |
| CN206309526U (en) * | 2016-12-26 | 2017-07-07 | 北京金风科创风电设备有限公司 | Wind power generating set and the blade locking arrangement for wind power generating set |
| CN207673495U (en) * | 2017-12-05 | 2018-07-31 | 明阳智慧能源集团股份公司 | A kind of wind generator set blade locking device |
-
2019
- 2019-01-23 CN CN201910064478.3A patent/CN109505733B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2886858A1 (en) * | 2013-12-19 | 2015-06-24 | Acciona Windpower S.a. | Wind turbine with blade pitch system |
| CN207500062U (en) * | 2017-11-07 | 2018-06-15 | 沈阳化工大学 | The electronic impeller lock of wind-driven generator |
| CN207500044U (en) * | 2017-11-28 | 2018-06-15 | 北京国电思达科技有限公司 | A kind of device positioned for wind power generation unit blade with installing |
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| Publication number | Publication date |
|---|---|
| CN109505733A (en) | 2019-03-22 |
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| CB02 | Change of applicant information |
Address after: 200241 Dongchuan Road, Shanghai, No. 555, building No. 8, floor, floor, No. Applicant after: Shanghai Electric Wind Power Group Co., Ltd Address before: 200241, 4 floor, building 555, 4 Dongchuan Road, Shanghai, Minhang District Applicant before: SHANGHAI ELECTRIC WIND POWER GROUP Co.,Ltd. |
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