CN117432574B - Wind-powered electricity generation blade is with exempting from to stand up installation fastener - Google Patents
Wind-powered electricity generation blade is with exempting from to stand up installation fastener Download PDFInfo
- Publication number
- CN117432574B CN117432574B CN202311761975.1A CN202311761975A CN117432574B CN 117432574 B CN117432574 B CN 117432574B CN 202311761975 A CN202311761975 A CN 202311761975A CN 117432574 B CN117432574 B CN 117432574B
- Authority
- CN
- China
- Prior art keywords
- blade
- worm
- flange
- fixed
- positioning
- 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.)
- Active
Links
- 238000009434 installation Methods 0.000 title claims abstract description 36
- 230000005611 electricity Effects 0.000 title claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 12
- 230000005484 gravity Effects 0.000 abstract description 8
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- 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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
-
- 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
Landscapes
- 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 relates to the technical field of wind power equipment installation and discloses a turnover-free installation fastening device for wind power blades. The detachable counterweight component can balance the center of gravity of the hub, so that the fan main shaft is prevented from overcoming larger torque, the fan main shaft is safer, the detachable counterweight component can be used for driving the positioning component to adjust the angle of the blade, positioning work is facilitated, compared with the existing preassembly method, the requirement on fields and equipment is low, the impeller is not required to be turned over in the air, the risk that the impeller contacts with the tower body when the impeller is hoisted is avoided, compared with the existing direct-mounting method, the problem that the fan main shaft cannot be kept balanced to drive the hub under high load when the impeller is installed is solved, the angle of the blade is not required to be adjusted through a lifting appliance, the air positioning work when the blade is installed is simplified, and the fan main shaft is more practical.
Description
Technical Field
The invention relates to the technical field of wind power equipment installation, in particular to a turnover-free installation fastening device for wind power blades.
Background
The wind power engineering plays an extremely important role in the development of the electric industry, the supply of electric energy is maintained at all times, a hard and long road is provided behind the wind power engineering, the most difficult lifting work of the wind power generator is that the impeller of the wind power generator comprises a hub and blades, the wind power generator comprises a plurality of mounting processes, the common mounting processes comprise preassembling and direct mounting, namely, assembling three blades and the hub on the ground in advance, then mounting the wind power generator on a cabin after lifting and turning over, and the direct mounting is that the hub is firstly lifted and fixed on the cabin, and then the blades are sequentially lifted and fixed on the hub;
at present, the two modes have defects, the preassembling method is required to be provided with a larger field and hoisting equipment, the risk of the hoisting and turning over processes is high, the tower body is easy to contact, the direct-loading method is used for independently hoisting the blades, a special hoisting tool for the blades is needed, the impeller cannot keep self balance before the third blade is installed, the main shaft of the fan is required to provide counter torque to overcome the torque generated by the incomplete impeller, the load is high, and a plurality of blades are required to be positioned by adjusting the angle of the blades in the air through the hoisting tool, so that the difficulty is high.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a turnover-free installation fastening device for wind power blades, which has the advantages of lower requirements on sites and hoisting equipment, safety, low main shaft load, convenient control and positioning and the like, and solves the problems that the existing preassembled blades have high requirements on the sites and the equipment, the difficulty of the overhead turnover operation is high, the safety risk is high, the main shaft of a fan is required to bear larger load when the blades are directly installed, and the difficulty of the overhead positioning is high.
In order to solve the technical problems, the invention provides the following technical scheme: the turning-over-free mounting and fastening device for the wind power blade comprises a hub and the blade, wherein three connecting cylinders are arranged on the hub, openings are formed in the side walls of the connecting cylinders, a pre-connecting assembly and a positioning assembly are arranged on the inner sides of the connecting cylinders, and a detachable counterweight assembly is arranged on the outer sides of the connecting cylinders;
The pre-connection assembly comprises a pre-installation flange movably installed inside the connecting cylinder and is used for pre-installing the blades;
The positioning component is in transmission connection with the pre-connection component and is used for driving the pre-installation flange to rotate so as to force the pre-installed blade to rotate to a specified angle;
the detachable counterweight assembly comprises a counterweight block, wherein the counterweight block is used for balancing the weight of the hub when the blade is installed, and is in transmission connection with the positioning assembly and is also used for driving the positioning assembly;
The blade is inserted into the connecting cylinder after being hoisted by the crane, the blade is pre-fixed by the pre-connecting component, then the detachable counterweight component operates and drives the positioning component, and the positioning component operates and drives the pre-installed flange and the blade to rotate to a specified angle, so that positioning is realized;
and fixing the positioned blade with the connecting cylinder again, and finally, disassembling the detachable counterweight assembly and hoisting the detachable counterweight assembly to the ground through a crane.
Preferably, the inner cylinder is fixed inside the connecting cylinder, the preassembly flange is arranged at the edge of the inner cylinder and is rotationally connected with the inner cylinder, a plurality of pre-connecting holes are formed in the preassembly flange, the outer edge of the preassembly flange is fixedly connected with a positioning block, and a plurality of connecting studs matched with the pre-connecting holes are fixed at the end parts of the blades.
Preferably, the positioning assembly comprises a first worm wheel and a second worm wheel, the first worm wheel and the second worm wheel are both rotationally connected to the outer side of the inner cylinder, the edge of the first worm wheel is fixedly connected with a first pushing block, the edge of the second worm wheel is fixedly connected with a second pushing block, and the first pushing block and the second pushing block are respectively located at two sides of the positioning block.
Preferably, the positioning assembly further comprises a sliding rail, a vertical pipe, a first worm and a second worm which are arranged inside the opening, two ends of the first worm are rotationally connected with the inner wall of the opening, the first worm is meshed with the first worm wheel, a first gear is fixed on the first worm, two ends of the second worm are rotationally connected with the inner wall of the opening, the second worm is meshed with the second worm wheel, a second gear is fixed on the second worm, the second gear is meshed with the first gear, two ends of the vertical pipe are rotationally connected with the inner wall of the opening, a third gear is fixed on the vertical pipe, the third gear is meshed with the first gear, a spiral through hole is formed in the vertical pipe, two ends of the sliding rail are fixed with the inner wall of the opening, a sliding block is slidingly connected on the sliding rail, a short pin is fixed on the sliding block, and the short pin extends into the spiral through hole.
Preferably, the connecting cylinder outer wall is fixed with the mounting bracket that corresponds with trompil position, removable counter weight subassembly includes the frame, the frame is fixed in the mounting bracket inboard, balancing weight slidable mounting is inboard at the frame, spacing hole has been seted up to the balancing weight lateral wall, be provided with spacing frock on the frame.
Preferably, the limiting tool comprises an electric push rod, a bar frame and a limiting pin, one end of the bar frame is rotationally connected with the frame, the limiting pin is movably inserted into the frame, one end of the limiting pin extends into the limiting hole, the other end of the limiting pin is fixedly provided with a first guide shaft, the first guide shaft extends into the bar frame, the electric push rod is fixed at the top of the frame, and the output end of the electric push rod is fixedly provided with a second guide shaft which extends into the bar frame.
Preferably, a pressing block is fixedly connected to one side of the balancing weight, extends to the inner side of the opening and is located at the top of the sliding block.
Preferably, the bottom of the balancing weight is provided with a groove, a friction block is connected in the groove in a sliding mode, one side of the friction block is attached to the inner wall of the frame, a spring is fixed to the other side of the friction block, and one end of the spring is fixedly connected with the inner wall of the groove.
Preferably, the end part of the connecting cylinder is provided with a first connecting flange, and the blade is provided with a second connecting flange.
Compared with the prior art, the invention provides a turnover-free installation fastening device for wind power blades, which has the following beneficial effects:
1. This kind of wind-powered electricity generation blade is with exempting from to stand up installation fastener, through set up pre-connection subassembly in wheel hub, locating component and removable counter weight subassembly, through pre-installation, location, the direct mount of blade is realized to the mode of refastening, removable counter weight subassembly can enough balance wheel hub focus, avoid the fan main shaft to overcome great moment, it is safer, removable counter weight subassembly can also be used for driving locating component simultaneously, with carrying out angle adjustment to the blade, positioning work has been made things convenient for, this mode is low to place and equipment requirement than current preassembly, need not aerial upset impeller, the risk of impeller contact tower body when still having avoided hoisting the impeller, can not keep the balance when having overcome the impeller installation than current direct mount method, need not to adjust blade angle through hoist, the aerial positioning work when having simplified the blade installation, it is more practical.
2. This kind of wind-powered electricity generation blade is with exempting from to stand up installation fastener, it is fixed with the pre-installation flange earlier through connecting stud, and rethread first flange and second flange are fixed after the blade location, improve the joint strength of blade through dual fixed mode, and is safer stable to pre-installation flange and connecting stud set up in the wheel hub inboard, are difficult for being corroded by external environment, have saved the maintenance resource.
3. This kind of wind-powered electricity generation blade is with exempting from to stand up installation fastener realizes positioning work through the operation of the gravity drive locating component of balancing weight, and the drive power is sufficient, need not the motor, has saved the energy, through setting up the friction disc, can control the sliding speed of balancing weight, avoids the balancing weight to slide down too soon to cause spare and accessory to damage, safer.
Drawings
FIG. 1 is a schematic structural view of a turning-over-free mounting and fastening device for wind power blades;
FIG. 2 is a schematic view of the inner structure of the connecting cylinder according to the present invention;
FIG. 3 is a front cross-sectional view of the hub of the present invention;
FIG. 4 is a top cross-sectional view of the hub of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic view of the bottom structure of the counterweight of the invention;
FIG. 7 is an enlarged view of portion B of FIG. 6 in accordance with the present invention;
FIG. 8 is an exploded view of the mounting structure of the removable weight assembly of the present invention;
FIG. 9 is a schematic view of portion C of FIG. 8 in accordance with the present invention;
fig. 10 is a partial sectional view of the blade-mounted state of the present invention.
In the figure: 1. a hub; 2. a blade; 21. a connecting stud; 22. a second connection flange; 3. a connecting cylinder; 4. opening holes; 5. a pre-connection assembly; 51. preassembling a flange; 52. pre-connecting holes; 53. a positioning block; 6. a positioning assembly; 601. a first worm wheel; 602. a second worm wheel; 603. a first push block; 604. a second push block; 605. a slide rail; 606. a standpipe; 607. a first worm; 608. a second worm; 609. a first gear; 610. a second gear; 611. a third gear; 612. a spiral through hole; 613. a slide block; 614. a short pin; 7. a removable weight assembly; 701. balancing weight; 702. a frame; 703. a limiting hole; 704. an electric push rod; 705. a bar frame; 706. a limiting pin; 707. a first guide shaft; 708. a second guide shaft; 709. briquetting; 710. a groove; 711. a friction block; 712. a spring; 8. an inner cylinder; 9. a mounting frame; 10. a first connection flange.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As described in the background art, the application provides a turning-free installation fastening device for wind power blades, which aims to solve the technical problems.
Referring to fig. 1-3, a turning-over-free installation fastening device for wind power blades comprises a hub 1 and blades 2, wherein three connecting cylinders 3 are arranged on the hub 1, openings 4 are formed in the side walls of the connecting cylinders 3, a pre-connecting assembly 5 and a positioning assembly 6 are arranged on the inner side of the connecting cylinders 3, and a detachable counterweight assembly 7 is arranged on the outer side of the connecting cylinders 3;
The pre-connection assembly 5 comprises a pre-installation flange 51 movably installed inside the connection cylinder 3, and the pre-connection assembly 5 is used for pre-installing the blades 2;
The positioning component 6 is in transmission connection with the pre-connection component 5, and the positioning component 6 is used for driving the pre-installation flange 51 to rotate so as to force the pre-installed blade 2 to rotate to a specified angle;
The detachable counterweight assembly 7 comprises a counterweight 701, the counterweight 701 is used for balancing the weight of the hub 1 when the blade 2 is installed, the detachable counterweight assembly 7 is in transmission connection with the positioning assembly 6, and the detachable counterweight assembly 7 is also used for driving the positioning assembly 6;
The blade 2 is inserted into the connecting cylinder 3 after being hoisted by a crane, the blade 2 is pre-fixed by the pre-connecting component 5, then the detachable counterweight component 7 operates and drives the positioning component 6, and the positioning component 6 operates and drives the pre-installed flange 51 and the blade 2 to rotate to a specified angle, so that positioning is realized;
The positioned blade 2 is fixed with the connecting cylinder 3 again, and finally, the detachable counterweight assembly 7 is detached and hoisted to the ground through a crane.
Wherein, the preassembled flange 51 and the connecting cylinder 3 are concentrically arranged, three groups of detachable counterweight components 7 are arranged on the hub 1 in advance on the ground and then are hoisted and fixed on the engine room along with the hub 1, the counterweight 701 is preferentially arranged as a metal block, the weight of the counterweight 701 is preferentially arranged to be the same as or close to that of the blade 2, and the balance of the hub 1 is ensured by the counterweight 701 before the blade 2 on the mounting cylinder is mounted;
When the novel wind turbine blade 2 is used, three groups of detachable counterweight assemblies 7 are pre-installed on a hub 1, the hub 1 is hoisted through a crane and then fixed on a cabin, then a blade 2 is hoisted, the blade 2 is horizontally inserted into a connecting cylinder 3, a preassembled flange 51 is manually rotated to adjust the angle of the preassembled flange 51 to be matched with the blade 2, then the end part of the blade 2 is fixed with the preassembled flange 51 through nuts, then the detachable counterweight assemblies 7 are operated, a counterweight 701 drives a positioning assembly 6 to operate, the positioning assembly 6 drives the preassembled flange 51 to rotate to a specified angle and drives the blade 2 to rotate to a specified angle, so that the positioning of the blade 2 is realized, then the blade 2 is fixed with the connecting cylinder 3 again through bolts, then the crane hoistes the detachable counterweight assemblies 7 while the detachable counterweight assemblies 7 are dismounted, and the detachable counterweight assemblies 7 are hoisted to the ground, so that the installation of the single blade 2 is completed, a main shaft drives the hub 1 to rotate when the cabin is operated, and the counterweight 701 on the hub 1 and the installed blade 2 still can keep the gravity center of the hub 1 stable, and the rest blades 2 are repeatedly operated;
Through set up pre-connection subassembly 5, locating component 6 and removable counter weight subassembly 7 in wheel hub 1, through pre-installation, location, the direct-mounted of blade 2 is realized to the mode of refastening, removable counter weight subassembly 7 can enough balance wheel hub 1 focus, avoid the fan main shaft to overcome great moment, it is safer, removable counter weight subassembly 7 can also be used for driving locating component 6 simultaneously, with carrying out angle adjustment to blade 2, the positioning work has been made things convenient for, this mode is low to place and equipment requirement than current preassembly, need not aerial upset impeller, the risk of impeller contact tower body when having still avoided hoisting the impeller, can not keep the balance when having overcome the impeller installation compared current direct-mounted method and lead to fan main shaft high load drive wheel hub 1, need not through hoist adjustment blade 2 angle, the aerial positioning work when having simplified blade 2 installation, it is more practical.
Further, referring to fig. 2-4, an inner cylinder 8 is fixed inside the connecting cylinder 3, the pre-installed flange 51 is disposed at the edge of the inner cylinder 8 and is rotatably connected with the inner cylinder 8, a plurality of pre-installed holes 52 are formed in the pre-installed flange 51, a positioning block 53 is fixedly connected to the outer edge of the pre-installed flange 51, and a plurality of connecting studs 21 matched with the pre-installed holes 52 are fixed at the end of the blade 2;
the inner cylinder 8 and the connecting cylinder 3 are concentrically arranged, the diameter of the inner cylinder 8 is smaller than that of the connecting cylinder 3, the preassembled flange 51 is rotationally connected with the inner cylinder through a bearing, and in order to improve the installation efficiency of the blade 2, the number of the pre-connecting holes 52 is as small as possible on the premise of being capable of meeting the requirement of fixing the blade 2, and the number of the connecting studs 21 on the blade 2 is the same as that of the pre-connecting holes 52;
when the crane is used, the crane hoists the blade 2 to the height of the connecting cylinder 3, the end part of the blade 2 is inserted into the connecting cylinder 3, an operator rotates the preassembled flange 51 in the hub 1, so that the preassembled flange 51 is aligned with the connecting stud 21 at the end part of the blade 2, the crane controls the blade 2 to move, the connecting stud 21 is inserted into the pre-connecting hole 52 on the preassembled flange 51, the connecting stud 21 is fixed through the nut, and then the end part of the blade 2 is fixed with the preassembled flange 51;
By providing a movable pre-mounted flange 51 and connecting studs 21, the blade 2 is facilitated to be pre-mounted, and positioned after pre-mounting, with less safety risk and lower load on the crane at this time.
Further, referring to fig. 3-7, the positioning assembly 6 includes a first worm gear 601 and a second worm gear 602, the first worm gear 601 and the second worm gear 602 are both rotatably connected to the outside of the inner cylinder 8, a first push block 603 is fixedly connected to the edge of the first worm gear 601, a second push block 604 is fixedly connected to the edge of the second worm gear 602, the first push block 603 and the second push block 604 are respectively located at two sides of the positioning block 53, the positioning assembly 6 further includes a slide rail 605, a vertical pipe 606, a first worm 607 and a second worm 608 which are disposed inside the opening 4, both ends of the first worm 607 are rotatably connected to the inner wall of the opening 4, the first worm 607 is meshed with the first worm gear 601, a first gear 609 is fixed on the first worm 607, both ends of the second worm 608 are rotatably connected to the inner wall of the opening 4, a second gear 610 is fixed on the second worm 608, the second gear 610 is meshed with the first gear 609, both ends of the worm gear 606 are rotatably connected to the inner wall of the opening 4, a third gear 605 is fixedly connected to the vertical pipe 611, and a slide block 613 is fixedly meshed with the inner wall 612, and a slide block 613 is fixedly connected to the inner wall of the slide block 613;
The slide rail 605, the vertical pipe 606, the first worm 607 and the second worm 608 are all vertically arranged, the slide rail 605, the vertical pipe 606, the first worm 607 and the second worm 608 are all rotationally connected with the inner wall of the opening 4 through bearings, and in an initial state, the gravity of the slide block 613 and the short pin 614 is insufficient to drive the vertical pipe 606 to rotate;
when the positioning assembly 6 is used, the sliding block 613 and the short pin 614 move downwards when the positioning assembly 6 operates, the short pin 614 presses the inner wall of the spiral through hole 612, so that the vertical pipe 606 can be driven to rotate, the third gear 611 is driven to rotate when the vertical pipe 606 rotates, the first gear 609 is driven to rotate when the third gear 611 rotates, the first worm 607 is driven to rotate when the first gear 609 rotates, the first worm wheel 601 is driven to rotate when the first worm 607 rotates, and the first push block 603 is driven to rotate when the first worm wheel 601 rotates; the first gear 609 also drives the second gear 610 to rotate when rotating, the second gear 610 drives the second worm 608 to rotate when rotating, the second worm 608 drives the second worm wheel 602 to rotate when rotating, the second worm wheel 602 drives the second push block 604 to rotate, and because the first gear 609 and the second gear 610 rotate, the first push block 603 and the second push block 604 rotate clockwise and anticlockwise respectively, the first push block 603 approaches each other at the same time, the first push block 603 and the second push block 604 contact the positioning block 53 and push the positioning block 53 in the moving process, so that the preassembly flange 51 and the blade 2 on the preassembly flange 51 rotate, and finally the positioning block 53 is kept stable and does not move when the positioning block 53 is clamped in the middle by the first push block 603 and the second push block 604, and the preassembly flange 51 and the blade 2 are adjusted to a proper angle;
Through setting up locating component 6, be favorable to driving preassembly flange 51 and blade 2 after the preinstallation rotate to appointed angle, and then realize the location, guarantee that the angle of blade 2 is fit for.
Further, referring to fig. 6-9, the outer wall of the connecting cylinder 3 is fixed with a mounting frame 9 corresponding to the position of the opening 4, the detachable counterweight assembly 7 includes a frame 702, the frame 702 is fixed inside the mounting frame 9, the counterweight 701 is slidably mounted inside the frame 702, a limit hole 703 is formed in the side wall of the counterweight 701, a limit tool is provided on the frame 702, the limit tool includes an electric push rod 704, a bar frame 705 and a limit pin 706, one end of the bar frame 705 is rotatably connected with the frame 702, the limit pin 706 is movably inserted into the frame 702, one end of the limit pin 706 extends into the limit hole 703, the other end of the limit pin 706 is fixed with a first guide shaft 707, the first guide shaft 707 extends into the bar frame 705, the electric push rod 704 is fixed at the top of the frame 702, a second guide shaft 708 is fixed at the output end of the electric push rod 704, the second guide shaft 708 extends into the bar frame 705, one side of the counterweight is fixedly connected with a press block 709, the press block 709 extends into the inside the opening 4 and is located at the top of the slider 613, one end of the bar frame 702 is rotatably connected with a groove 710, one side of the friction block 710 is fixedly connected with the other side of the inner wall 711, and the other side of the friction block 710 is fixedly connected with the inner wall 710;
Wherein, the top of the frame 702 is provided with a hanging ring which is convenient for hoisting, the frame 702 is fixed with the mounting frame 9 through screws, the inner side of the frame 702 is provided with a sliding rail 605, the side wall of the balancing weight 701 is provided with sliding grooves matched with the sliding rail 605, two limiting holes 703 are arranged, the two limiting holes 703 are symmetrically arranged at two sides of the balancing weight 701, the number of limiting tools is also two, and the two limiting tools are symmetrically arranged at two sides of the balancing weight 701;
when the device is used, the electric push rod 704 stretches during operation, the second guide shaft 708 is driven to move, the bar frame 705 is driven to rotate during movement of the second guide shaft 708, the first guide shaft 707 is driven to move during rotation of the bar frame 705, the limiting pin 706 is driven to move during movement of the first guide shaft 707, the limiting pin 706 is separated from the limiting hole 703 during movement, at the moment, the balancing weight 701 slides under the action of gravity, the pressing block 709 is driven to move during sliding of the balancing weight 701, the pressing block 709 contacts with the sliding block 613 and drives the sliding block 613 to move during sliding of the balancing weight 701, the positioning assembly 6 is driven, the friction block 711 is attached to the frame 702 and moves relative to the frame 702 during sliding of the balancing weight 701, and the sliding speed of the balancing weight 701 can be controlled by friction force;
Through setting up removable counter weight subassembly 7, the balancing weight 701 slides under the action of gravity when removable counter weight subassembly 7 operates, utilizes the gravity of balancing weight 701 as the operation of actuating source drive positioning assembly 6, is favorable to fixing a position pre-installation flange 51 and blade 2, need not other actuating sources.
Further, referring to fig. 10, the end of the connecting cylinder 3 is provided with a first connecting flange 10, and the blade 2 is provided with a second connecting flange 22;
When the blade 2 is positioned, the angle of the second connecting flange 22 and the angle of the first connecting flange 10 are just matched, and at the moment, the connection of the first connecting flange 10 and the second connecting flange 22 can be realized through bolts and nuts, so that the positioned blade 2 is reinforced again;
by arranging the first connecting flange 10 and the second connecting flange 22, the secondary fixing of the blade 2 is facilitated, and the connection strength of the blade 2 is improved.
Working principle: when the novel wind turbine blade is used, three groups of detachable counterweight assemblies 7 are pre-installed on a hub 1, the hub 1 is hoisted through a crane and then fixed on a cabin, then a blade 2 is hoisted, the blade 2 is horizontally inserted into a connecting cylinder 3, an operator rotates a preassembled flange 51 in the hub 1 to enable the preassembled flange 51 to be aligned with a connecting stud 21 at the end part of the blade 2, the crane controls the blade 2 to move, the connecting stud 21 is inserted into a pre-connecting hole 52 on the preassembled flange 51, the connecting stud 21 is fixed through a nut, the end part of the blade 2 is further fixed with the preassembled flange 51, and at the moment, a first connecting flange 10 is just attached to the first connecting flange 10;
Then, the electric push rod 704 is started, the electric push rod 704 stretches when operating, the second guide shaft 708 is driven to move, the bar frame 705 is driven to rotate when the second guide shaft 708 moves, the first guide shaft 707 is driven to move when the bar frame 705 rotates, the limiting pin 706 is driven to move when the first guide shaft 707 moves, the limiting pin 706 is separated from the limiting hole 703 when moving, at the moment, the balancing weight 701 slides under the action of gravity, the pressing block 709 is driven to move when the balancing weight 701 slides, the pressing block 709 contacts with the sliding block 613 and drives the sliding block 613 to move, the positioning assembly 6 is further driven, the friction block 711 is attached to the frame 702 and moves relative to the frame 702 in the sliding process of the balancing weight 701, and the sliding speed of the balancing weight 701 can be controlled by friction force;
When the sliding block 613 moves, the short pin 614 is driven to move downwards, the short pin 614 presses the inner wall of the spiral through hole 612, the vertical pipe 606 can be driven to rotate, when the vertical pipe 606 rotates, the third gear 611 is driven to rotate, when the third gear 611 rotates, the first gear 609 is driven to rotate, when the first gear 609 rotates, the first worm 607 is driven to rotate, when the first worm 607 rotates, the first worm wheel 601 is driven to rotate, and when the first worm wheel 601 rotates, the first push block 603 is driven to rotate; the first gear 609 also drives the second gear 610 to rotate when rotating, the second gear 610 drives the second worm 608 to rotate when rotating, the second worm 608 drives the second worm wheel 602 to rotate when rotating, the second worm wheel 602 drives the second push block 604 to rotate, and because the first gear 609 and the second gear 610 rotate, the first push block 603 and the second push block 604 rotate clockwise and anticlockwise respectively, the first push block 603 approaches each other at the same time, the first push block 603 and the second push block 604 contact the positioning block 53 and push the positioning block 53 in the moving process, so that the preassembly flange 51 and the blade 2 on the preassembly flange 51 rotate, finally the positioning block 53 is kept stable and does not move when the positioning block 53 is clamped in the middle by the first push block 603 and the second push block 604, the preassembly flange 51 and the blade 2 are adjusted to a proper angle, and the angle of the first connecting flange 10 and the second connecting flange 22 is matched at the moment;
fixing the first connecting flange 10 and the second connecting flange 22 through bolts and nuts, fixing the blades 2 again, hoisting and fixing the frame 702 by a crane, detaching and separating the frame 702 from the mounting frame 9, placing the detachable counterweight assembly 7 on the ground by the crane, completing the installation of a single blade 2, and repeating the operation to realize the installation of three blades 2;
Through set up pre-connection subassembly 5, locating component 6 and removable counter weight subassembly 7 in wheel hub 1, through pre-installation, location, the direct-mounted of blade 2 is realized to the mode of refastening, removable counter weight subassembly 7 can enough balance wheel hub 1 focus, avoid the fan main shaft to overcome great moment, it is safer, removable counter weight subassembly 7 can also be used for driving locating component 6 simultaneously, with carrying out angle adjustment to blade 2, the positioning work has been made things convenient for, this mode is low to place and equipment requirement than current preassembly, need not aerial upset impeller, the risk of impeller contact tower body when having still avoided hoisting the impeller, can not keep the balance when having overcome the impeller installation compared current direct-mounted method and lead to fan main shaft high load drive wheel hub 1, need not through hoist adjustment blade 2 angle, the aerial positioning work when having simplified blade 2 installation, it is more practical.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Wind-powered electricity generation blade is with exempting from to stand up installation fastener, including wheel hub (1) and blade (2), be provided with three connecting cylinder (3), its characterized in that on wheel hub (1): the side wall of the connecting cylinder (3) is provided with an opening (4), a pre-connecting component (5) and a positioning component (6) are arranged on the inner side of the connecting cylinder (3), and a detachable counterweight component (7) is arranged on the outer side of the connecting cylinder (3);
The pre-connection assembly (5) comprises a pre-installation flange (51) movably installed inside the connection cylinder (3), and the pre-connection assembly (5) is used for pre-installing the blades (2);
the positioning assembly (6) is in transmission connection with the pre-connection assembly (5), and the positioning assembly (6) is used for driving the pre-installation flange (51) to rotate so as to force the pre-installed blade (2) to rotate to a specified angle;
The detachable counterweight assembly (7) comprises a counterweight (701), the counterweight (701) is used for balancing the weight of the hub (1) when the blade (2) is installed, the detachable counterweight assembly (7) is in transmission connection with the positioning assembly (6), and the detachable counterweight assembly (7) is also used for driving the positioning assembly (6);
The blade (2) is inserted into the connecting cylinder (3) after being hoisted by a crane, the blade (2) is pre-fixed by the pre-connecting component (5), then the detachable counterweight component (7) operates and drives the positioning component (6), and the positioning component (6) operates and drives the pre-installed flange (51) and the blade (2) to rotate to a specified angle, so that positioning is realized;
fixing the positioned blade (2) with the connecting cylinder (3) again, and finally, disassembling the detachable counterweight assembly (7) and hoisting the detachable counterweight assembly to the ground through a crane;
an inner cylinder (8) is fixed inside the connecting cylinder (3), the preassembly flange (51) is arranged at the edge of the inner cylinder (8) and is rotationally connected with the inner cylinder (8), a plurality of pre-connection holes (52) are formed in the preassembly flange (51), a positioning block (53) is fixedly connected with the outer edge of the preassembly flange (51), and a plurality of connecting studs (21) matched with the pre-connection holes (52) are fixed at the end parts of the blades (2);
The positioning assembly (6) comprises a first worm wheel (601) and a second worm wheel (602), the first worm wheel (601) and the second worm wheel (602) are both rotationally connected to the outer side of the inner cylinder (8), a first pushing block (603) is fixedly connected to the edge of the first worm wheel (601), a second pushing block (604) is fixedly connected to the edge of the second worm wheel (602), and the first pushing block (603) and the second pushing block (604) are respectively located on two sides of the positioning block (53);
the positioning assembly (6) further comprises a sliding rail (605), a vertical pipe (606), a first worm (607) and a second worm (608) which are arranged inside the opening (4), wherein two ends of the first worm (607) are rotationally connected with the inner wall of the opening (4), the first worm (607) is meshed with the first worm wheel (601), a first gear (609) is fixed on the first worm (607), two ends of the second worm (608) are rotationally connected with the inner wall of the opening (4), the second worm (608) is meshed with the second worm wheel (602), a second gear (610) is fixed on the second worm (608), the second gear (610) is meshed with the first gear (609), two ends of the vertical pipe (606) are rotationally connected with the inner wall of the opening (4), a third gear (611) is fixed on the vertical pipe (606), a spiral through hole (612) is formed in the vertical pipe (606), the sliding rail (605) is rotationally connected with the inner wall of the opening (4), and the sliding block (613) is fixedly connected with the sliding block (613), and the sliding block (614) is fixedly connected with the sliding block (613) in the short pin (614);
the utility model discloses a connecting cylinder, including connecting cylinder (3), connecting cylinder (3) outer wall is fixed with mounting bracket (9) that correspond with trompil (4) position, removable counter weight subassembly (7) include frame (702), frame (702) are fixed in mounting bracket (9) inboard, balancing weight (701) slidable mounting is inboard at frame (702), spacing hole (703) have been seted up to balancing weight (701) lateral wall, be provided with spacing frock on frame (702).
2. The turnover-free mounting and fastening device for wind power blade of claim 1, wherein: spacing frock includes electric putter (704), bar frame (705) and spacer pin (706), bar frame (705) one end is rotated with frame (702) and is connected, spacer pin (706) are pegged graft with frame (702) activity, spacer pin (706) one end extends to in spacing hole (703), the spacer pin (706) other end is fixed with first guiding axle (707), first guiding axle (707) extend to in bar frame (705), electric putter (704) are fixed at frame (702) top, electric putter (704) output is fixed with second guiding axle (708), second guiding axle (708) extend to in bar frame (705).
3. The turnover-free mounting and fastening device for wind power blade of claim 2, wherein: one side of the balancing weight (701) is fixedly connected with a pressing block (709), and the pressing block (709) extends to the inner side of the opening (4) and is positioned at the top of the sliding block (613).
4. A turn-up-free mounting and fastening device for wind power blades according to claim 3, wherein: the balancing weight (701) is characterized in that a groove (710) is formed in the bottom of the balancing weight (701), a friction block (711) is connected in the groove (710) in a sliding mode, one side of the friction block (711) is attached to the inner wall of the frame (702), a spring (712) is fixed to the other side of the friction block (711), and one end of the spring (712) is fixedly connected with the inner wall of the groove (710).
5. The turnover-free mounting and fastening device for wind power blade of claim 1, wherein: the end part of the connecting cylinder (3) is provided with a first connecting flange (10), and the blade (2) is provided with a second connecting flange (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311761975.1A CN117432574B (en) | 2023-12-20 | 2023-12-20 | Wind-powered electricity generation blade is with exempting from to stand up installation fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311761975.1A CN117432574B (en) | 2023-12-20 | 2023-12-20 | Wind-powered electricity generation blade is with exempting from to stand up installation fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117432574A CN117432574A (en) | 2024-01-23 |
| CN117432574B true CN117432574B (en) | 2024-04-19 |
Family
ID=89552096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311761975.1A Active CN117432574B (en) | 2023-12-20 | 2023-12-20 | Wind-powered electricity generation blade is with exempting from to stand up installation fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117432574B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10141928A1 (en) * | 2001-07-20 | 2003-02-06 | Aloys Wobben | On site wind power system construction involves placing hub with weight in predetermined position, replacing weight with rotor blade by removing weight and fitting blade to rotor hub |
| DE102009011603A1 (en) * | 2009-03-04 | 2010-09-09 | Klaus Würthele | Rotor blade assembling device for wind power plant, has counterweights arranged at different distances to rotation axis, where mass distribution of rotor is changed during assembling rotor blade by adding counterweights |
| CN102852722A (en) * | 2012-09-27 | 2013-01-02 | 北京金风科创风电设备有限公司 | Hub displacement device and lifting method for impellers in direct-driven wind generating set |
| WO2014076825A1 (en) * | 2012-11-16 | 2014-05-22 | 三菱重工業株式会社 | Wind power generator assembly method and counterweight used therein |
| CN214269901U (en) * | 2021-01-07 | 2021-09-24 | 广东金风科技有限公司 | Counterweight artificial limb tool |
| CN115122081A (en) * | 2021-03-26 | 2022-09-30 | 西门子歌美飒可再生能源公司 | Tightening device |
| CN115478979A (en) * | 2021-05-31 | 2022-12-16 | 新疆金风科技股份有限公司 | Impeller installation method and blade auxiliary tool |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2952861T3 (en) * | 2017-09-15 | 2023-11-06 | Gen Electric | Counterweight system for the installation of balanced bushing wind turbine blades |
| US10823138B2 (en) * | 2018-08-31 | 2020-11-03 | General Electric Company | Counterweight assembly for use during single blade installation of a wind turbine |
| US20200072188A1 (en) * | 2018-08-31 | 2020-03-05 | General Electric Company | Counterweight Assembly for Use During Single Blade Installation of a Wind Turbine |
-
2023
- 2023-12-20 CN CN202311761975.1A patent/CN117432574B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10141928A1 (en) * | 2001-07-20 | 2003-02-06 | Aloys Wobben | On site wind power system construction involves placing hub with weight in predetermined position, replacing weight with rotor blade by removing weight and fitting blade to rotor hub |
| DE102009011603A1 (en) * | 2009-03-04 | 2010-09-09 | Klaus Würthele | Rotor blade assembling device for wind power plant, has counterweights arranged at different distances to rotation axis, where mass distribution of rotor is changed during assembling rotor blade by adding counterweights |
| CN102852722A (en) * | 2012-09-27 | 2013-01-02 | 北京金风科创风电设备有限公司 | Hub displacement device and lifting method for impellers in direct-driven wind generating set |
| WO2014076825A1 (en) * | 2012-11-16 | 2014-05-22 | 三菱重工業株式会社 | Wind power generator assembly method and counterweight used therein |
| CN214269901U (en) * | 2021-01-07 | 2021-09-24 | 广东金风科技有限公司 | Counterweight artificial limb tool |
| CN115122081A (en) * | 2021-03-26 | 2022-09-30 | 西门子歌美飒可再生能源公司 | Tightening device |
| CN115478979A (en) * | 2021-05-31 | 2022-12-16 | 新疆金风科技股份有限公司 | Impeller installation method and blade auxiliary tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117432574A (en) | 2024-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201608664U (en) | Double-shaft sun tracker | |
| CN117432574B (en) | Wind-powered electricity generation blade is with exempting from to stand up installation fastener | |
| US10801473B2 (en) | Hub crane assembly for a wind turbine | |
| CN213536389U (en) | Movable turnover tool for assembling fuel cell system | |
| CN115513835A (en) | Electric power overhauls and lifts device with cable | |
| CN209721471U (en) | A kind of auto repair lifting platform | |
| CN112900170A (en) | Single-toe elastic strip mounting and dismounting device | |
| CN208712568U (en) | A kind of tool for repairing sheet metal hole | |
| CN216299215U (en) | Planet carrier subassembly installation auxiliary platform | |
| CN220787780U (en) | Novel jigger frock of modularization installation | |
| CN212404669U (en) | Single-toe elastic strip mounting and dismounting device | |
| CN216807816U (en) | Energy-concerving and environment-protective type is hanger for construction | |
| CN216272702U (en) | Frock of speed reducer is changed to horizontal state | |
| CN220093701U (en) | Tower section of thick bamboo fixation nut locking device in wind-powered electricity generation installation | |
| CN219929479U (en) | Yaw speed reducer replacement tool | |
| CN211136925U (en) | Five-degree-of-freedom variable pitch bearing mounting device | |
| CN215756037U (en) | Auxiliary crane for offshore wind generating set | |
| CN220483273U (en) | Locomotive modularized battery, converter cabinet body and locomotive | |
| CN216477677U (en) | Conveniently maintain aerogenerator that security performance is high | |
| CN220260857U (en) | Frock mechanism convenient to change driftage reduction gear | |
| CN216681986U (en) | Turnover device for assembling central transmission component of vehicle driving axle | |
| CN218754475U (en) | Lifting tool for assembling spray pipe and engine | |
| CN218802157U (en) | Pre-assembled operating platform of wind driven generator | |
| CN220994433U (en) | Hydraulic support assembly workbench | |
| CN212656708U (en) | Revolving door lightweight two-stage speed reduction direct current motor driving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |