CN109113938B - Segmented variable-pitch bearing reinforcing flange for wind turbine generator and air installation method of segmented variable-pitch bearing reinforcing flange - Google Patents
Segmented variable-pitch bearing reinforcing flange for wind turbine generator and air installation method of segmented variable-pitch bearing reinforcing flange Download PDFInfo
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- CN109113938B CN109113938B CN201811178357.3A CN201811178357A CN109113938B CN 109113938 B CN109113938 B CN 109113938B CN 201811178357 A CN201811178357 A CN 201811178357A CN 109113938 B CN109113938 B CN 109113938B
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- pitch bearing
- hanging basket
- flange section
- cushion block
- flange
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 33
- 238000009434 installation Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012423 maintenance Methods 0.000 claims description 12
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- 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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a segmented variable pitch bearing reinforcing flange for a wind turbine and an air installation method thereof. The structure and the method can be installed at high altitude without dismantling the pitch bearing and the blades, and the pitch bearing reinforcing flange can be installed at high altitude without a large crane by utilizing the cantilever crane and the hanging basket at the top of the engine room, so that the cost is low.
Description
Technical Field
The invention relates to the technical field of wind turbines, in particular to a segmented variable pitch bearing reinforcing flange for a wind turbine and an air installation method thereof.
Background
In order to improve the fatigue performance of blade root bolts, a pitch bearing reinforcing flange needs to be arranged on the pitch bearing outer ring. The general reinforcing flange is a whole circle structure, the blade and the variable-pitch bearing are required to be detached when the variable-pitch bearing reinforcing flange is installed, and the cost is high because the installation position is high and the blade is required to be lifted by a large crane.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides a segmented variable-pitch bearing reinforcing flange for a wind turbine generator and an air installation method thereof, which can be installed at high altitude without disassembling a variable-pitch bearing and blades, can be installed at high altitude by using a cantilever crane and a hanging basket at the top of a cabin without a large crane, and has low cost.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the segmented variable pitch bearing reinforcing flange for the wind turbine generator comprises a first flange section, a second flange section, a first cushion block and a second cushion block, wherein the first flange section and the second flange section are arc sections which can be spliced into a whole circle structure, meanwhile, one end of the first flange section is sunk with a first sunk position with the depth consistent with the thickness of the first cushion block, the other end of the first flange section is sunk with a second sunk position with the depth consistent with the thickness of the second cushion block, one end of the second flange section is sunk with a third sunk position with the depth consistent with the thickness of the first cushion block, the other end of the second flange section is sunk with a fourth sunk position with the depth consistent with the thickness of the second cushion block, after the first flange section and the second flange section are spliced into a whole circle, the first sunk position and the third sunk position can be combined into a containing space for containing the first cushion block, the second sunk position and the fourth sunk position can be combined into a containing space for containing the second cushion block, and the shape of the containing space is matched with the size of the cushion block respectively; the first flange section, the second flange section, the first cushion block and the second cushion block are provided with bolt holes, and the bolt holes are concentric with the variable pitch bearing bolt holes and the blade bolt holes of the wind turbine generator and have the same diameter.
Further, the first cushion block and the second cushion block are arc sections.
The air installation method of the segmented variable pitch bearing reinforcing flange for the wind turbine generator comprises the following specific steps:
the method comprises the steps that a cantilever crane and a hanging basket are needed to be used at the top of a nacelle of a wind turbine, wherein the cantilever crane is fixed on a platform at the top of the nacelle, and the hanging basket can be safely moved to the mounting positions of the top of the nacelle and a variable-pitch bearing reinforcing flange; maintenance personnel can dismount and mount the pitch bearing and the blade connecting stud in the hanging basket, and can be fixedly connected with the pitch bearing through the hanging basket fixing device;
the aerial installation method comprises the following steps:
1) The adjusting blade is in a vertically downward state: rotating the impeller until the blades are in a vertical downward state to lock the impeller;
2) Variable-pitch bearing reinforcing flange and material hoisting: placing a variable-pitch bearing reinforcing flange, tools and auxiliary materials into a hanging basket, and lifting a cantilever crane to enable the hanging basket to be lifted to the height of a cabin;
3) Maintenance personnel enter the hanging basket: continuously lifting the hanging basket above the cabin platform, reliably fixing the hanging basket on the cabin platform, enabling maintenance personnel to enter the hanging basket, and adjusting the cantilever crane to adjust the hanging basket to the installation position of the variable-pitch bearing reinforcing flange;
4) Disassembling a part of studs for connecting an original pitch bearing with a blade: installing a hanging basket fixing device to reliably fix the hanging basket and the variable pitch bearing, connecting the fixed point with the variable pitch bearing through bolts, and disassembling a part of stud connected with the variable pitch bearing and the blade;
5) Mounting a first flange section: aligning the bolt holes of the first flange section with the bolt holes of the outer ring of the variable pitch bearing, changing the original short stud into a long stud, fastening a nut, installing the hanging basket fixing device again, enabling the hanging basket to be reliably fixed with the variable pitch bearing, connecting the fixed points with the first flange section through bolts, and disassembling the hanging basket fixing device after fastening all the bolts;
6) Mounting a second flange section: adjusting the cantilever crane to adjust the hanging basket to the installation position at the other side of the impeller, and installing a second flange section by adopting the same method as the step 5);
7) Installing a first cushion block and a second cushion block: after the first flange section and the second flange section are installed, a first cushion block and a second cushion block are respectively installed, and then the two flange sections are connected and fixed through bolts;
8) And (3) hanging the wind turbine generator by using tool materials: after the installation of the whole variable-pitch bearing reinforcing flange is finished, the hanging basket moves to the top of the engine room to be fixed, and maintenance personnel safely move from the hanging basket to the top of the engine room; and (5) hanging the old studs and tools to the foundation by using a hanging basket.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the variable pitch bearing and the blades do not need to be disassembled, the variable pitch bearing reinforcing flange can be installed at high altitude, the cantilever crane and the hanging basket at the top of the engine room are utilized, a large crane is not needed, the cost is low, and the small crane is convenient to install.
Drawings
FIG. 1 is an assembly view of a pitch bearing stiffening flange of the present invention.
Fig. 2 is an exploded view of the pitch bearing stiffening flange of the present invention.
Fig. 3 is a schematic structural view of one of the flange segments.
Fig. 4 is a schematic structural diagram of one of the pads.
FIG. 5 is a schematic view of the mounting of the pitch bearing stiffening flange of the present invention.
FIG. 6 is a schematic illustration of the installation of a cantilever crane, a basket and a pitch bearing.
Fig. 7 is a schematic view of a basket securing apparatus.
Detailed Description
The invention will be further illustrated with reference to specific examples.
As shown in fig. 1 to 5, the sectional type pitch-variable bearing reinforcing flange for the wind turbine generator system provided by the embodiment is composed of a first flange section 1, a second flange section 2, a first cushion block 3 and a second cushion block 4, wherein the first flange section and the second flange section are arc sections, which can be spliced into a whole circle structure, one end of the first flange section 1 is sunk with a first sunk position 5 with depth consistent with the thickness of the first cushion block 3, the other end of the first flange section is sunk with a second sunk position 6 with depth consistent with the thickness of the second cushion block 4, one end of the second flange section 2 is sunk with a third sunk position 7 with depth consistent with the thickness of the first cushion block 3, the other end of the second flange section 2 is sunk with a fourth sunk position 8 with depth consistent with the thickness of the second cushion block 4, after the first flange section 1 and the second flange section 2 are spliced into a whole circle, the first sunk position 5 and the third sunk position 7 can be combined to form a containing space capable of containing the first cushion block 3, the second sunk position 6 and the fourth sunk position 7 can be combined to form a containing space with the second cushion block 4, and the second sunk space can be matched with the first cushion block 4, and the second cushion block 4 is formed with the first cushion block 4, and the second cushion block is formed by the first cushion block and the second cushion block is formed by a small space; in addition, bolt holes 9 are formed in the first flange section 1, the second flange section 2, the first cushion block 3 and the second cushion block 4, and the bolt holes 9 are concentric with bolt holes of a variable pitch bearing 10 and a blade bolt hole of the wind turbine generator and have the same diameter.
The following is an aerial installation method of the segmented pitch bearing reinforcing flange according to the embodiment, and the specific case is as follows:
the method needs a cantilever crane 11 and a hanging basket 12 which are used at the top of a cabin of a wind turbine generator, wherein the cantilever crane 11 is fixed on a platform at the top of the cabin, and the hanging basket 12 can be safely moved to the installation positions of the top of the cabin and a variable-pitch bearing reinforcing flange (shown in figure 6); the basket 12 is semicircular in shape, and maintenance personnel can detachably mount 1/2 turn pitch bearing 10 and blade connecting studs in the basket 12 and can be connected and fixed with the pitch bearing 10 through a basket fixing device 13 (shown in fig. 7).
The step of installing the variable pitch bearing reinforcing flange at high altitude is as follows:
1) The adjusting blade is in a vertically downward state: rotating the impeller until the blades are in a vertical downward state to lock the impeller;
2) Variable-pitch bearing reinforcing flange and material hoisting: placing a variable-pitch bearing reinforcing flange, tools and auxiliary materials into a hanging basket, and lifting a cantilever crane to enable the hanging basket to be lifted to the height of a cabin;
3) Maintenance personnel enter the hanging basket: continuing to lift the nacelle to above the nacelle platform, reliably fixing the nacelle on the nacelle platform, allowing maintenance personnel to enter the nacelle, and adjusting the cantilever crane to adjust the nacelle to the installation position of the variable-pitch bearing reinforcing flange, as shown in fig. 6;
4) Disassembling 1/2 circle of studs for connecting an original pitch bearing with a blade: installing a hanging basket fixing device to reliably fix the hanging basket and the variable pitch bearing, connecting the fixed point with the variable pitch bearing through bolts, and disassembling a part of stud connected with the variable pitch bearing and the blade;
5) Mounting a first flange section: aligning the bolt holes of the first flange section with the bolt holes of the outer ring of the variable pitch bearing, changing the original short stud into a long stud, fastening a nut, installing the hanging basket fixing device again, enabling the hanging basket to be reliably fixed with the variable pitch bearing, connecting the fixed points with the first flange section through bolts, and disassembling the hanging basket fixing device after fastening all the bolts;
6) Mounting a second flange section: adjusting the cantilever crane to adjust the hanging basket to the installation position at the other side of the impeller, and installing a second flange section by adopting the same method as the step 5);
7) Installing a first cushion block and a second cushion block: after the first flange section and the second flange section are installed, a first cushion block and a second cushion block are respectively installed, and then the two flange sections are connected and fixed through bolts;
8) And (3) hanging the wind turbine generator by using tool materials: after the installation of the whole variable-pitch bearing reinforcing flange is finished, the hanging basket moves to the top of the engine room to be fixed, and maintenance personnel safely move from the hanging basket to the top of the engine room; and (5) hanging the old materials such as studs, tools and the like to a tower foundation by using a hanging basket.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so variations in shape and principles of the present invention should be covered.
Claims (3)
1. Segmented variable pitch bearing reinforcing flange for wind turbine generator, which is characterized in that: the flange comprises a first flange section, a second flange section, a first cushion block and a second cushion block, wherein the first flange section and the second flange section are arc sections, the first flange section and the second flange section can be spliced into a whole circle structure, meanwhile, one end of the first flange section is sunk with a first sunk position with the depth consistent with the thickness of the first cushion block, the other end of the first flange section is sunk with a second sunk position with the depth consistent with the thickness of the second cushion block, one end of the second flange section is sunk with a third sunk position with the depth consistent with the thickness of the first cushion block, the other end of the second flange section is sunk with a fourth sunk position with the depth consistent with the thickness of the second cushion block, after the first flange section and the second flange section are spliced into a whole circle, the first sunk position and the third sunk position can be combined to form a containing space for containing the first cushion block, and the shape and size of the containing space are matched with the cushion blocks respectively; the first flange section, the second flange section, the first cushion block and the second cushion block are provided with bolt holes, and the bolt holes are concentric with the variable pitch bearing bolt holes and the blade bolt holes of the wind turbine generator and have the same diameter.
2. The segmented pitch bearing stiffening flange for a wind turbine according to claim 1, wherein: the first cushion block and the second cushion block are arc sections.
3. An aerial installation method of a segmented pitch bearing stiffening flange for a wind turbine according to claim 1 or 2, characterized by comprising the steps of: the method comprises the steps that a cantilever crane and a hanging basket are needed to be used at the top of a nacelle of a wind turbine, wherein the cantilever crane is fixed on a platform at the top of the nacelle, and the hanging basket can be safely moved to the mounting positions of the top of the nacelle and a variable-pitch bearing reinforcing flange; maintenance personnel can dismount and mount the pitch bearing and the blade connecting stud in the hanging basket, and can be fixedly connected with the pitch bearing through the hanging basket fixing device;
the aerial installation method comprises the following steps:
1) The adjusting blade is in a vertically downward state: rotating the impeller until the blades are in a vertical downward state to lock the impeller;
2) Variable-pitch bearing reinforcing flange and material hoisting: placing a variable-pitch bearing reinforcing flange, tools and auxiliary materials into a hanging basket, and lifting a cantilever crane to enable the hanging basket to be lifted to the height of a cabin;
3) Maintenance personnel enter the hanging basket: continuously lifting the hanging basket above the cabin platform, reliably fixing the hanging basket on the cabin platform, enabling maintenance personnel to enter the hanging basket, and adjusting the cantilever crane to adjust the hanging basket to the installation position of the variable-pitch bearing reinforcing flange;
4) Disassembling a part of studs for connecting an original pitch bearing with a blade: installing a hanging basket fixing device to reliably fix the hanging basket and the variable pitch bearing, connecting the fixed point with the variable pitch bearing through bolts, and disassembling a part of stud connected with the variable pitch bearing and the blade;
5) Mounting a first flange section: aligning the bolt holes of the first flange section with the bolt holes of the outer ring of the variable pitch bearing, changing the original short stud into a long stud, fastening a nut, installing the hanging basket fixing device again, enabling the hanging basket to be reliably fixed with the variable pitch bearing, connecting the fixed points with the first flange section through bolts, and disassembling the hanging basket fixing device after fastening all the bolts;
6) Mounting a second flange section: adjusting the cantilever crane to adjust the hanging basket to the installation position at the other side of the impeller, and installing a second flange section by adopting the same method as the step 5);
7) Installing a first cushion block and a second cushion block: after the first flange section and the second flange section are installed, a first cushion block and a second cushion block are respectively installed, and then the two flange sections are connected and fixed through bolts;
8) And (3) hanging the wind turbine generator by using tool materials: after the installation of the whole variable-pitch bearing reinforcing flange is finished, the hanging basket moves to the top of the engine room to be fixed, and maintenance personnel safely move from the hanging basket to the top of the engine room; and (5) hanging the old studs and tools to the foundation by using a hanging basket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178357.3A CN109113938B (en) | 2018-10-10 | 2018-10-10 | Segmented variable-pitch bearing reinforcing flange for wind turbine generator and air installation method of segmented variable-pitch bearing reinforcing flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178357.3A CN109113938B (en) | 2018-10-10 | 2018-10-10 | Segmented variable-pitch bearing reinforcing flange for wind turbine generator and air installation method of segmented variable-pitch bearing reinforcing flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109113938A CN109113938A (en) | 2019-01-01 |
| CN109113938B true CN109113938B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811178357.3A Active CN109113938B (en) | 2018-10-10 | 2018-10-10 | Segmented variable-pitch bearing reinforcing flange for wind turbine generator and air installation method of segmented variable-pitch bearing reinforcing flange |
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| CN (1) | CN109113938B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854462A (en) * | 2019-03-11 | 2019-06-07 | 中国船舶重工集团海装风电股份有限公司 | A kind of wind-driven generator and its blade pitch device |
| CN113931802A (en) * | 2021-09-24 | 2022-01-14 | 广东水电二局股份有限公司 | High-altitude fan blade replacement method based on cooperation of double cranes |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007008166A1 (en) * | 2007-02-14 | 2008-08-21 | Nordex Energy Gmbh | Wind energy plant with a pitch turning connection |
| CN103161662A (en) * | 2011-12-13 | 2013-06-19 | 新疆金风科技股份有限公司 | Variable pitch limit structure of wind turbine blade |
| CN209041031U (en) * | 2018-10-10 | 2019-06-28 | 明阳智慧能源集团股份公司 | A kind of segmented pitch variable bearings reinforcement flange for Wind turbines |
-
2018
- 2018-10-10 CN CN201811178357.3A patent/CN109113938B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007008166A1 (en) * | 2007-02-14 | 2008-08-21 | Nordex Energy Gmbh | Wind energy plant with a pitch turning connection |
| CN103161662A (en) * | 2011-12-13 | 2013-06-19 | 新疆金风科技股份有限公司 | Variable pitch limit structure of wind turbine blade |
| CN209041031U (en) * | 2018-10-10 | 2019-06-28 | 明阳智慧能源集团股份公司 | A kind of segmented pitch variable bearings reinforcement flange for Wind turbines |
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| Publication number | Publication date |
|---|---|
| CN109113938A (en) | 2019-01-01 |
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