CN219384446U - Wind driven generator replacement blade hoisting system - Google Patents
Wind driven generator replacement blade hoisting system Download PDFInfo
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- CN219384446U CN219384446U CN202222768214.6U CN202222768214U CN219384446U CN 219384446 U CN219384446 U CN 219384446U CN 202222768214 U CN202222768214 U CN 202222768214U CN 219384446 U CN219384446 U CN 219384446U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to the technical field of wind driven generator blade replacement, in particular to a wind driven generator blade replacement hoisting system, wherein the number of blade hoisting ring assemblies is two and the two blade hoisting ring assemblies are respectively sleeved on two wind driven generator blades; the hoisting fixing frame assembly is fixedly connected with the two blade hanging ring assemblies through a plurality of fixing frame steel wire ropes, a plurality of electric hoists are arranged on the hoisting fixing frame assembly, and hoist hanging ropes are connected to the electric hoists; the hanging basket assembly is provided with a plurality of hanging basket motors, and the blade hanging ring assembly is correspondingly connected with the output shafts of the hanging basket motors one by one through a plurality of hanging basket steel wire ropes; the top of blade hoist and mount frame is through a plurality of hoist and mount frame lifting ropes and hoist and mount subassembly detachable connection, is provided with a plurality of hoist and mount frame lifting lugs from top to bottom on the both sides wall of blade hoist and mount frame. The beneficial effects of the utility model are as follows: the utility model realizes that the wind driven generator can complete the dismantling of the old blades and the installation of the new blades without a main crane or a sling, thereby saving the lifting cost of blade replacement.
Description
Technical Field
The utility model relates to the technical field of blade replacement of wind driven generators, in particular to a hoisting system for replacing blades of a wind driven generator.
Background
At present, the replacement of the blades of the wind driven generator on land or sea is completed through a crane or a sling, a main crane or a sling with enough tonnage and arm length is required to be rented, and along with the development of technology, the tower of the wind driven generator is higher (140 meters at present and higher later), and the length and the quality of the blades are larger and larger; the crane or sling required is more and more tonnage, the arm length is longer and the cost is more and more expensive, so that research on the replacement of wind driven generator blades without using a crane or sling is becoming more and more important.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a hoisting system for replacing blades of a wind driven generator, which can realize hoisting of the blades of the wind driven generator without a main crane or a hoisting ship in the process of replacing the blades of the wind driven generator.
The technical scheme for solving the technical problems is as follows: a wind driven generator blade replacement hoisting system comprises
The number of the blade hanging ring assemblies is two, and the blade hanging ring assemblies are respectively sleeved on the blades of the two wind driven generators;
the hoisting fixing frame assembly is arranged vertically below the blade hanging ring assembly and fixedly connected with the two blade hanging ring assemblies through a plurality of fixing frame steel wire ropes, a plurality of electric hoists are mounted on the hoisting fixing frame assembly, hoist hanging ropes are connected to the electric hoists, and a hanging hook is fixedly arranged at one end, far away from the electric hoists, of each hoist hanging rope;
the hanging basket assembly is arranged vertically below the blade hanging ring assembly, a plurality of hanging basket motors are arranged on the hanging basket assembly, and the blade hanging ring assembly is correspondingly connected with output shafts of the hanging basket motors one by one through a plurality of hanging basket steel wire ropes;
the blade hoisting frame, the blade hoisting frame is established the vertical below of hoist and mount subassembly, the top of blade hoisting frame through a plurality of hoist and mount frame lifting ropes with hoist and mount subassembly can dismantle and be connected, the top of blade hoisting frame is equipped with the connecting piece that is used for with aerogenerator blade fixed connection, be provided with a plurality of hoist and mount frame lugs that are used for being connected with the lifting hook from top to bottom on the both sides wall of blade hoisting frame.
The beneficial effects of the utility model are as follows: the utility model realizes that the wind driven generator can complete the dismantling of the old blades and the installation of the new blades without a main crane or a sling, thereby saving the lifting cost of blade replacement.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the blade rings subassembly includes flat suspender and blade semicircle support piece, the both ends of flat suspender with the fixed connection can be dismantled through the bolt at the both ends of blade semicircle support piece, flat suspender with the annular structure that forms after the blade semicircle support piece is connected is used for the cover to establish on the aerogenerator blade and the outside of the rain-proof ring of butt at aerogenerator blade, the both ends of blade semicircle support piece all are fixed and are equipped with be used for with mount wire rope and the rings connecting piece that hanging flower basket wire rope is connected.
The beneficial effects of adopting the further scheme are as follows: the blade lifting ring assembly is connected with the blade semicircular supporting piece through the flat hanging strip, so that the installation of the blade lifting ring assembly is facilitated, and the flat hanging strip is positioned above the blade lifting ring assembly to serve as a main bearing piece when the blade lifting ring assembly bears the gravity, so that damage to the blade of the wind driven generator is avoided.
Further, all be equipped with rain-proof ring support assembly by blade rings subassembly, rain-proof ring support assembly is including being used for the inboard upper portion arc support piece of rain-proof ring of butt wind turbine blade and being used for with wind turbine variable pitch bearing fixed connection's lower part arc support piece, upper portion arc support piece with pass through supporting screw fixed connection between the arc support piece of lower part.
The beneficial effects of adopting the further scheme are as follows: the setting of rain-proof ring supporting component can realize supporting to the rain-proof ring, avoids causing the damage to the rain-proof ring because blade rings subassembly receives great effort in the in-process of hoist and mount aerogenerator blade.
Further, hoist and mount subassembly is frame structure, and is a plurality of electric block is fixed hoist and mount subassembly's bottom, hoist and mount subassembly's upper portion is fixed be equipped with a plurality of with mount lug that mount wire rope one-to-one is connected, hoist and mount subassembly is used for being close to the fixed mount tower section of thick bamboo butt arc board that is equipped with in one side of aerogenerator tower section of thick bamboo.
The beneficial effects of adopting the further scheme are as follows: the setting of mount lug is convenient for be connected with mount wire rope, and mount tower section of thick bamboo butt arc board can be through tower section of thick bamboo to hoist and mount subassembly realization support.
Further, the hoisting fixing frame component is used for being close to one side of the wind driven generator tower, a fixing frame tower hanging strip is arranged at one side of the fixing frame tower hanging strip, one ends of the fixing frame tower hanging strip are fixedly connected with one ends of fixing frame hanging strip pulling screw rods, fixing frame hanging strip pulling fixing blocks which are used for being connected with the fixing frame hanging strip pulling screw rods in one-to-one correspondence are fixedly arranged on the hoisting fixing frame component, and one ends of the fixing frame hanging strip pulling screw rods, far away from the fixing frame tower hanging strip, penetrate through and stretch out of the fixing frame hanging strip pulling fixing blocks and then are in threaded connection with nuts.
The beneficial effects of adopting the further scheme are as follows: in the use, mount tower section of thick bamboo suspender cover is established on the tower section of thick bamboo, thereby adjusts the elasticity of mount tower section of thick bamboo suspender through the position of rotating nut regulation mount suspender pulling screw rod, when mount tower section of thick bamboo suspender tight cover on the tower section of thick bamboo, hoist and mount subassembly and tower section of thick bamboo can fastening butt, avoid appearing rocking at hoist and mount subassembly in-process hoist and mount aerogenerator blade, when the hoist and mount subassembly needs to be dismantled, loosen the connection of mount tower section of thick bamboo suspender and tower section of thick bamboo can.
Further, the hanging flower basket subassembly includes the first bottom plate of hanging flower basket, the both ends of the first bottom plate of hanging flower basket all are equipped with hanging flower basket second bottom plate, two hanging flower basket second bottom plate is located the same side of the first bottom plate of hanging flower basket, and two the one end of hanging flower basket second bottom plate respectively with the tip fixed connection of the first bottom plate of hanging flower basket forms C type structure, all be equipped with two hanging flower basket on the second bottom plate of hanging flower basket and carry the frame, the hanging flower basket is carried the frame and is fixed to be equipped with the hanging flower basket motor.
The beneficial effects of adopting the further scheme are as follows: the hanging basket assembly is of a C-shaped structure, a hanging basket motor is arranged on a hanging basket lifting frame, and the hanging basket motor drives a hanging basket steel wire rope to achieve lifting of the whole hanging basket assembly.
Further, the first bottom plate of hanging flower basket is used for being close to the fixed hanging flower basket tower section of thick bamboo butt arc board that is equipped with of one side of aerogenerator tower section of thick bamboo.
The beneficial effects of adopting the further scheme are as follows: the hanging basket tower barrel is abutted against the arc plate, so that the arc plate can be matched with the hanging basket tower barrel hanging strip to fix the hanging basket assembly on the tower barrel. Further, two the one end that hanging flower basket second bottom plate is used for being close to wind-driven generator tower section of thick bamboo is all fixed to be equipped with hanging flower basket suspender pulling fixed block, all be connected with hanging flower basket suspender pulling screw on the hanging flower basket suspender pulling fixed block, two hanging flower basket suspender pulling screw's one end respectively with hanging flower basket tower section of thick bamboo suspender's both ends fixed connection, two the other end of hanging flower basket suspender pulling screw passes behind the hanging flower basket suspender pulling fixed block with nut threaded connection.
The beneficial effects of adopting the further scheme are as follows: in the use, hanging flower basket tower section of thick bamboo suspender cover is established on the tower section of thick bamboo, thereby adjusts the elasticity of hanging flower basket tower section of thick bamboo suspender through the position of rotating nut adjustment hanging flower basket suspender pulling screw rod, when hanging flower basket tower section of thick bamboo suspender tight sleeve on the tower section of thick bamboo, and hanging flower basket subassembly and tower section of thick bamboo can fastening butt, when dismantling or need reciprocate hanging flower basket subassembly, loosen hanging flower basket tower section of thick bamboo suspender and be connected of tower section of thick bamboo can.
Further, the blade hoist and mount frame is a vertical side and is open C type frame structure, the blade hoist and mount frame is used for being close to wind turbine tower one side on fixedly being equipped with the blade support fixed plate, the top of blade support fixed plate with the blade hoist and mount frame rotates to be connected, it is equipped with two and can follow the gliding blade support arc piece of vertical direction to slide on the blade support fixed plate at least, the blade support arc piece is established the inboard of blade hoist and mount frame, the blade support fixed plate be used for being close to wind turbine tower one side on be equipped with the extension spring of the vertical setting that blade support arc piece one-to-one set up, extension spring keep away from the one end of blade support fixed plate tip with blade support fixed plate fixed connection, be located the top the other end of extension spring with the one end fixed connection of stay cord, the other end of stay cord walk around the setting of blade support fixed plate tip behind the winding circle with be located the top blade support arc piece fixed connection, the other end of extension spring with be located the below blade support arc piece fixed connection.
The beneficial effects of adopting the further scheme are as follows: the blade support arc piece slides and establishes on the blade support fixed plate, at the in-process of hoist and mount, aerogenerator blade butt is on the blade support arc piece, because aerogenerator is by hoist and mount blade at the in-process of hoist and mount downwardly sliding of hoist and mount assurance all parts play wheel hub, the blade support arc piece that slides and set up can avoid blade support arc piece and aerogenerator blade to appear sliding and cause the damage of aerogenerator blade surface, simultaneously, extension spring and stay cord can realize making blade support arc piece be in blade support fixed plate top before the motion, for it creates the condition along with the blade gliding. Further, be equipped with electric putter on the hanging flower basket subassembly, electric putter's one end with the hanging flower basket subassembly rotates to be connected, the blade supports the fixed plate and is used for being close to on one side of aerogenerator tower section of thick bamboo be equipped with be used for with the push rod connecting pin that electric putter other end passes through the bolt detachable connection.
The beneficial effects of adopting the further scheme are as follows: before the wind driven generator blade is separated from the wind driven generator variable pitch bearing, the wind driven generator blade is inclined outwards to a certain extent, and the electric push rod is pushed out to drive the blade supporting and fixing plate to incline outwards, so that the blade supporting arc piece abuts against the wind driven generator blade.
Drawings
FIG. 1 is a schematic perspective view of the present utility model, not shown in the drawings are a cradle tower abutment arc plate, cradle tower sling and electric putter;
FIG. 2 is a schematic view of a bucket ring assembly according to the present utility model;
FIG. 3 is a schematic view of a lifting fixture assembly according to the present utility model;
FIG. 4 is a schematic view of a basket assembly according to the present utility model;
FIG. 5 is a schematic view of the installation of the extension spring of the present utility model on the blade support mounting plate;
FIG. 6 is a schematic view of the construction of the support assembly of the rain ring of the present utility model;
fig. 7 is a schematic structural view of an electric putter in the present utility model;
FIG. 8 is a schematic view of a culvert bar according to the present utility model;
in the drawings, the list of components represented by the various numbers is as follows:
1. a blade lifting ring assembly; 101. a flat sling; 102. a vane semicircle support; 103. a hanging ring connecting piece; 2. hoisting a fixing frame component; 201. a fixing frame lifting lug; 202. the tower barrel of the fixed frame is abutted with the arc plate; 203. a fixed frame tower tube hanging strip; 204. the fixed frame suspender pulls the screw rod; 205. the fixed frame suspender pulls the fixed block; 3. fixing the wire rope; 4. an electric hoist; 5. hoist lifting rope; 6. a lifting hook; 7. a basket assembly; 701. a basket first bottom plate; 702. a basket second bottom plate; 703. lifting a basket frame; 704. the hanging basket tower barrel is abutted against the arc plate; 705. the hanging basket hanging belt pulls the fixed block; 706. the hanging basket hanging belt pulls the screw rod; 707. hanging basket tower cylinder hanging strip; 8. a basket motor; 9. a hanging basket steel wire rope; 10. a blade hoisting frame; 1001. a blade supporting and fixing plate; 1002. the blade supports the arc-shaped piece; 1003. a tension spring; 1004. a pull rope; 1005. winding a ring; 11. hoisting a frame lifting rope; 12. a connecting piece; 13. hoisting the frame lifting lug; 14. a rain ring support assembly; 1401. an upper arc-shaped support; 1402. a lower arc support; 1403. a support screw; 15. an electric push rod; 16. a push rod connecting pin; 17. and (5) thinning the guide rod.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in fig. 1, the embodiment of the utility model comprises two blade hanging ring assemblies 1, wherein the two blade hanging ring assemblies 1 are respectively sleeved on two wind driven generator blades.
The hoisting fixing frame assembly 2 is arranged vertically below the blade hanging ring assembly 1, the hoisting fixing frame assembly 2 is fixedly connected with the two blade hanging ring assemblies 1 through a plurality of fixing frame steel wire ropes 3, a plurality of electric hoists 4 are arranged on the hoisting fixing frame assembly 2, hoist hanging ropes 5 are connected to the electric hoists 4, and a hanging hook 6 is fixedly arranged at one end, far away from the electric hoists 4, of each hoist hanging rope 5;
the hanging basket assembly 7 is arranged vertically below the blade hanging ring assembly 1, a plurality of hanging basket motors 8 are arranged on the hanging basket assembly 7, and the blade hanging ring assembly 1 is correspondingly connected with output shafts of the hanging basket motors 8 one by one through a plurality of hanging basket steel wire ropes 9;
the blade hoisting frame 10, blade hoisting frame 10 establishes the vertical below of hoist and mount subassembly 2, the top of blade hoisting frame 10 through a plurality of hoisting frame lifting ropes 11 with hoist and mount subassembly 2 can dismantle the connection, the top of blade hoisting frame 10 is equipped with and is used for the connecting piece 12 with aerogenerator blade fixed connection, be provided with a plurality of hoisting frame lugs 13 that are used for being connected with lifting hook 6 from top to bottom on the both sides wall of blade hoisting frame 10.
Specifically, as shown in fig. 2, in one embodiment of the present utility model, the blade lifting ring assembly 1 includes a flat hanging strip 101 and a blade semicircular support member 102, two ends of the flat hanging strip 101 are detachably and fixedly connected with two ends of the blade semicircular support member 102 through bolts, specifically, two ends of the flat hanging strip 101 are fixedly provided with connecting rings, connecting rings are sleeved with connecting rings, two ends of the connecting rods are fixedly connected with ends of the blade semicircular support member 102 through bolts respectively, the bolts are fixedly connected with ends of the blade semicircular support member 102, threaded rod ends of the bolts pass through the connecting rods and are in threaded connection with nuts, so that the detachable and fixed connection between the flat hanging strip 101 and the blade semicircular support member 102 is realized, an annular structure formed after the connection between the flat hanging strip 101 and the blade semicircular support member 102 is used for being sleeved on a wind turbine blade and is abutted to the outer side of a rain-proof ring of the wind turbine blade, two ends of the blade semicircular support member 102 are fixedly provided with lifting ring connection members 103 used for being connected with the fixing wire ropes 3 and the hanging wire ropes 9 respectively, and the lifting ring connection members 103 are fixedly connected with the hanging ring connection members through the blade semicircular support member 102 through bolts 102. The blade lifting ring assembly 1 is connected with the blade semicircular supporting piece 102 through the flat lifting belt 101, so that the installation of the blade lifting ring assembly 1 is facilitated, and the flat lifting belt 101 is positioned above as a main bearing piece when bearing the gravity, so that damage to the blade of the wind driven generator is avoided. In the embodiment of the present utility model, two hanging ring connectors 103 are respectively disposed at two ends of each of the blade semicircular supporting members 102 and are used for respectively connecting the fixed frame steel wire rope 3 and the hanging basket steel wire rope 9, and the two blade hanging ring assemblies 1 form four hanging ring connectors 103 for connecting the fixed frame steel wire rope 3 and four hanging ring connectors 103 for connecting the hanging basket steel wire rope 9.
In the embodiment of the present utility model, a rain-proof ring support assembly 14 is disposed beside the blade suspension ring assembly 1, as shown in fig. 6, the rain-proof ring support assembly 14 includes an upper arc support 1401 for abutting against the inner side of the rain-proof ring of the blade of the wind turbine and a lower arc support 1402 for fixedly connecting with the pitch bearing of the wind turbine, and the upper arc support 1401 and the lower arc support 1402 are fixedly connected by a support screw 1403. The setting of rain-proof ring supporting component 14 can realize supporting to the rain-proof ring, avoids being damaged to the rain-proof ring because blade rings subassembly 1 receives great effort in the in-process of hoist and mount aerogenerator blade.
As shown in fig. 3, in the embodiment of the present utility model, the lifting fixing frame assembly 2 is configured to be provided with a fixing frame tower sling 203 on one side close to a wind turbine tower, two ends of the fixing frame tower sling 203 are fixedly connected with one end of a fixing frame sling pulling screw 204, fixing frame sling pulling fixing blocks 205 which are used for being connected with the fixing frame sling pulling screws 204 in a one-to-one correspondence manner are fixedly arranged on the lifting fixing frame assembly 2, one end of the fixing frame sling pulling screw 204, which is far away from the fixing frame tower sling 203, passes through and extends out of the fixing frame sling pulling fixing blocks 205, and is then connected with nuts in a threaded manner, during the use process, the fixing frame tower sling 203 is sleeved on a tower, the position of the fixing frame sling pulling screw 204 is adjusted by rotating nuts, so that tightness of the fixing frame tower sling 203 is adjusted, when the fixing frame tower sling 203 is tightly sleeved on the tower, the lifting frame assembly 2 can be tightly abutted against the tower, shaking of the lifting frame assembly 2 in the process of lifting a wind turbine blade is avoided, and when the fixing frame sling 2 needs to be detached.
The hoisting fixing frame assembly 2 is of a frame structure, a plurality of electric hoists 4 are fixed at the bottom of the hoisting fixing frame assembly 2, a plurality of fixing frame lifting lugs 201 connected with the fixing frame steel wire ropes 3 in one-to-one correspondence are fixedly arranged on the upper portion of the hoisting fixing frame assembly 2, and a fixing frame tower barrel butt arc plate 202 is fixedly arranged on one side, close to a wind driven generator tower barrel, of the hoisting fixing frame assembly 2. The setting of mount lug 201 is convenient for be connected with mount wire rope 3, and mount tower section of thick bamboo butt arc board 202 can be through a tower section of thick bamboo to hoist and mount subassembly 2 realization support.
As shown in fig. 4, the basket assembly 7 includes a basket first bottom plate 701, two ends of the basket first bottom plate 701 are respectively provided with a basket second bottom plate 702, two basket second bottom plates 702 are located on the same side of the basket first bottom plate 701, one ends of the two basket second bottom plates 702 are respectively fixedly connected with the end portions of the basket first bottom plate 701 to form a C-shaped structure, two basket lifting frames 703 are respectively fixedly arranged on the basket second bottom plate 702, the basket lifting frames 703 are fixedly provided with basket motors 8, the basket assembly 7 is in a C-shaped structure, basket lifting frames 703 are provided with basket motors 8, and lifting of the whole basket assembly 7 is achieved by driving basket steel wire ropes 9 through the basket motors 8.
Preferably, the first bottom plate 701 of the nacelle is used for fixing a nacelle tower abutment arc plate 704 on one side close to the wind turbine tower, and the nacelle tower abutment arc plate 704 is arranged to enable the nacelle tower abutment arc plate to cling to the tower, so as to provide support for rotation of the blade support fixing plate 1001 and change of the blade state of the wind turbine. In the embodiment of the utility model, two hanging basket second bottom plates 702 are used for being fixedly provided with hanging basket hanging strap pulling fixed blocks 705 near one ends of a wind driven generator tower, hanging basket hanging strap pulling fixed blocks 705 are connected with hanging basket hanging strap pulling screw rods 706, one ends of the two hanging basket hanging strap pulling screw rods 706 are fixedly connected with two ends of a hanging basket tower hanging strap 707 respectively, and the other ends of the two hanging basket hanging strap pulling screw rods 706 penetrate through the hanging basket hanging strap pulling fixed blocks 705 and are connected with nuts in a threaded manner. In the use process, the hanging basket tower hanging strip 707 is sleeved on the tower, the position of the hanging basket hanging strip pulling screw 706 is adjusted through the rotating nut, so that the tightness of the hanging basket tower hanging strip 707 is adjusted, when the hanging basket tower hanging strip 707 is tightly sleeved on the tower, the hanging basket assembly 7 can be tightly abutted with the tower, so that the hanging basket assembly can be tightly abutted against the tower, the support is provided for the rotation of the blade support fixing plate 1001 and the change of the blade state of the wind driven generator, and when the hanging basket assembly 7 needs to be disassembled or needs to be moved up and down, the connection between the hanging basket tower hanging strip 707 and the tower is loosened.
As shown in fig. 1 and 5, the blade lifting frame 10 is a C-shaped frame structure with an open vertical side, a blade supporting fixing plate 1001 is fixedly arranged on one side, close to the wind turbine tower, of the blade lifting frame 10, the top of the blade supporting fixing plate 1001 is rotatably connected with the blade lifting frame 10, at least two blade supporting arc-shaped pieces 1002 capable of sliding along the vertical direction are slidably arranged on the blade supporting fixing plate 1001, the blade supporting arc-shaped pieces 1002 are arranged on the inner side of the blade lifting frame 10, a vertically arranged extension spring 1003 which is arranged on one side, close to the wind turbine tower, of the blade supporting fixing plate 1001 in one-to-one correspondence with the blade supporting arc-shaped pieces 1002 is arranged, one end, far away from the end, close to the blade supporting fixing plate 1001, of the extension spring 1003 is fixedly connected with one end of a pull rope 1004, the other end, located above, of the extension spring 1003 is fixedly connected with one end of the pull rope 1004, the other end, located above the pull rope is wound around the other end, located below the arc-shaped pieces 1002, which are located below the arc-shaped pieces 1002, and are fixedly connected with the blade supporting pieces 1003. The blade support arc piece 1002 slides and establishes on blade support fixed plate 1001, in the in-process of hoist and mount, the aerogenerator blade butt is on blade support arc piece 1002, the aerogenerator blade is in the in-process of becoming the oar bearing with the aerogenerator, in roll-off wheel hub in-process, the blade support arc piece 1002 of slip setting can avoid blade support arc piece 1002 to appear sliding and cause the damage of aerogenerator blade surface, further preferred, be equipped with electric putter 15 on the basket assembly 7, electric putter 15's structure is as shown in fig. 7, electric putter 15's one end with basket assembly 7 rotates to be connected, be equipped with on one side that the blade support fixed plate 1001 is used for being close to the aerogenerator tower section of thick bamboo be used for with the push rod connecting pin 16 that the electric putter 15 other end passes through the bolt and can dismantle to be connected, before aerogenerator blade becomes the oar bearing with the aerogenerator, thereby the electric putter 15 releases and drives blade support fixed plate 1001 to make blade support arc piece 1002 butt aerogenerator blade, when aerogenerator blade becomes the bearing and breaks away from and the hub, the vertical frame of connection with the aerogenerator blade 12, makes the connection with the vertical frame of the vertical connection of the aerogenerator blade 10.
Working principle: the blade hanging ring assembly 1 formed by the flat hanging belt 101 and the blade semicircular supporting piece 102 is sleeved on two wind driven generator blades which are not replaced, and the hanging ring connecting piece 103 is installed on the blade semicircular supporting piece 102, and the specific method is as follows: before hoisting, the wind driven generator blades to be dismounted rotate to downwards set, wherein two blade hoisting ring assemblies 1 are sleeved on the other two wind driven generator blades, and the method for sleeving the two blade hoisting ring assemblies 1 on the other two wind driven generator blades comprises the following steps: rotating the rear edge of a blade to be provided with the blade hanging ring assembly 1 to the front, and adhering the binocular traction hanging belt to the upper semicircle of the upper blade by using a transparent adhesive tape; the rotating blades connect and tighten the flat suspender 101 and the binocular traction suspender at a position convenient for installation through a suspender pull rod, a traction suspender tightening rod and nuts; ensuring that the blade edge (trailing edge) rotates to the rear Shi Bianping and the sling 101 is positioned on the upper semicircle of the blade; turning the blade, untying one end of the flat sling 101 at a convenient installation position, connecting the flat sling 101 with the first section of the blade semicircular support piece 102 through a sling pull rod, a nut and the first section of the blade semicircular support piece 102, simultaneously pulling the two-eye traction sling, continuously turning the blade at the convenient installation position, connecting the first section of the blade semicircular support piece 102 with the second section through a bolt and a nut, simultaneously pulling the traction sling, continuously turning the blade, and taking off the two-eye traction sling at the convenient installation position, so as to complete connection between the flat sling 101 and the blade semicircular support piece 102;
one end of the fixed frame steel wire rope 3 and one end of the hanging basket steel wire rope 9 are respectively connected to corresponding hanging ring connecting pieces 103;
installing a rain-proof ring support assembly 14, namely installing a lower arc support 1402 and a wind driven generator pitch bearing on a mounting bolt, and adjusting nuts to enable an upper arc support 1401 to be abutted on a wind driven generator protection ring;
the basket steel wire ropes 9 are inserted into the basket motor 8 in a one-to-one correspondence manner, and the basket tower hanging strip 707 is sleeved on the tower;
the hanging basket assembly 7 is provided with the hanging frame assembly 2, the hanging frame tower tube hanging belt 203 is sleeved on the tower tube, the two ends of the hanging frame tower tube hanging belt 203 are respectively connected with the hanging frame hanging belt pulling fixed block 205 on the hanging frame assembly 2 through the hanging frame hanging belt pulling screw 204, then the hanging frame assembly 2 is lifted to a certain height through the hanging basket assembly 7, then the hanging frame assembly 2 is directly provided with the blade hanging frame 10 (in particular, four corners of the blade hanging frame 10 are provided with first connecting structures for connecting with the hanging frame assembly 2, the first connecting structures are respectively connected with the top four corners of the blade hanging frame 10 and the hanging frame assembly 2 in a detachable way through bolts), the blade supporting fixed plate 1001 is arranged on the hanging frame 10, then lifting the lifting fixing frame assembly 2 and the blade lifting frame 10 to the corresponding heights through the hanging basket assembly 7, realizing the transportation of the lifting fixing frame assembly 2 and the blade lifting frame 10 in place through one-time transportation of the hanging basket assembly 7, then connecting the fixing frame steel wire rope 3 with the lifting fixing frame assembly 2, enabling the fixing frame tower hanging belt 203 to move towards the direction of the tower through adjusting the fixing frame hanging belt pulling screw 204, enabling the obliquely arranged fixing frame tower hanging belt 203 to be gradually and horizontally sleeved on the tower in the moving process, in the embodiment, in order to ensure that the obliquely arranged fixing frame tower hanging belt 203 can be smoothly and horizontally arranged, both sides of the fixing frame tower hanging belt 203 are respectively provided with a dredging rod 17, the two dredging rods 17 are detachably arranged on the lifting fixing frame assembly 2, and the length directions of the dredging rods are the same as the length directions of the fixing frame hanging belt pulling screw 204, as shown in figure 8, a centralizing frame is fixedly arranged at one end of the dredging rod 17, which faces the tower, the main body of the dredging rod 17 can be spliced and connected through bolts, the end part of the fixed frame tower hanging strip 203 passes through the centralizing frame and then is connected with the fixed frame hanging strip pulling screw 204, when the fixed frame tower hanging strip 203 is horizontal, the dredging rod 17 can be retracted, and the redundant dredging rod 17 is removed;
the hanging basket assembly 7 descends to the corresponding position of the push rod connecting pin 16, the electric push rod 15 is connected with the push rod connecting pin 16, a hanging basket tower hanging strip 707 obliquely sleeved on the tower is fastened and sleeved on the tower, and the obliquely arranged hanging basket tower hanging strip 707 is gradually and horizontally sleeved on the tower in the fastening process of the hanging basket tower hanging strip 707;
the electric push rod 15 stretches to push the lower part of the blade support fixing plate 1001 to rotate obliquely upwards, so that the blade to be disassembled is abutted with the two blade support arc pieces 1002;
loosening a connecting bolt of a wind driven generator blade and a wind driven generator variable pitch bearing, lengthening a lifting rope by a separation system, enabling the wind driven generator blade to slide downwards, and retracting an electric push rod 15 after the wind driven generator blade is separated from the wind driven generator variable pitch bearing and slides out of a hub, wherein the blade support fixing plate 1001 rotates to be vertical, and the blade rotates to be vertical along with the blade support fixing plate 1001 under the action of gravity;
the worker on the hanging basket assembly 7 takes down the electric push rod 15, loosens the hanging basket tower hanging strip 707 again, the hanging basket assembly 7 ascends, the connection of the blades and the blade hanging frame 10 is completed through the connecting piece 12, then the hanging basket assembly 7 moves to each blade supporting arc-shaped piece 1002 respectively, the blade supporting arc-shaped pieces 1002 move to the hanging points corresponding to the blades, the screws of the cover plate of the blade supporting arc-shaped pieces 1002 are loosened, the films are padded under the cover plate, the screws are tightened, and the fixing of the blade supporting arc-shaped pieces 1002 at the blade hanging points is ensured;
then the hanging basket assembly 7 descends to the ground, the hanging basket tower hanging strip 707 is canceled, the hanging basket tower abutting arc plate 704 is canceled, the dredging rod 17 of the hanging basket tower hanging strip 707 is canceled, four electric hoists 4 are put on, the connecting frame of the hanging basket assembly 2 and the connecting frame of the blade hanging frame 10 are put on, the hanging basket assembly 7 ascends again, and relevant components are conveyed to relevant positions for installation.
Because the blade is inclined before being dismounted, the lifting fixing frame assembly 2 and the blade lifting frame 10 are in a C-shaped frame structure so that the top of the blade lifting frame 10 can be connected with the blade by using the connecting pieces 12, and in order to further ensure the stability of the connection between the blade lifting frame 10 and the blade and ensure the strength of the lifting fixing frame assembly 2, after the four electric hoists 4 are mounted on the lifting fixing frame assembly 2, two connecting frames are transported to the top of the blade lifting frame 10 and the lifting fixing frame assembly 2 through the hanging basket assembly 7, one opening of the C-shaped structure for sealing the blade lifting frame 10 and one opening of the C-shaped structure for sealing the lifting fixing frame assembly 2 are fixedly connected with the blade lifting frame 10 and the lifting fixing frame assembly 2 respectively, and the connecting pieces 12 are mounted on the connecting frames arranged on the blade lifting frame 10, so that the blade can be connected in four directions when the blade is connected with the blade lifting frame 10;
the hanging basket assembly 7 rises to the position of the hoisting fixing frame assembly 2 again, and the top of the blade is connected with the top of the blade hoisting frame 10 by a connecting piece 12 (the original blade bolt is taken down, and the blade T-shaped nut or the blade bolt is connected by the tool bolt);
taking down all connecting parts of the blade lifting frame 10 and the lifting fixing frame assembly 2, separating the blade lifting frame 10 from the lifting fixing frame assembly 2, continuously lengthening the rope by the separating system, transferring the gravity of the blade of the wind driven generator to the electric hoist 4, and taking down the connecting rope of the separating system and the blade to realize the complete separation of the blade of the wind driven generator and the pitch bearing of the wind driven generator; the electric hoist 4 lengthens the hoist lifting rope 5, so that the blade and the blade lifting frame 10 of the wind driven generator descend and are completely separated from the lifting fixing frame assembly 2 in height, and one end, far away from the lifting fixing frame assembly 2, of the four lifting frame lifting ropes 11 is hung on the lifting frame lifting lug 13 of the second layer under the cooperation of the electric hoist 4; the electric hoist 4 lengthens the hoist lifting rope 5, the gravity of the wind power generator blade and the blade lifting frame 10 gradually moves to the lifting frame lifting rope 11, and the wind power generator blade and the blade lifting frame 10 gradually move backwards in the process that the gravity of the wind power generator blade and the blade lifting frame 10 moves to the lifting frame lifting rope 11 as the positions of the four lifting frame lifting ropes 11 relative to the four electric hoist 4 are closer to the tower drum; the hanging basket assembly 7 returns to the lifting fixing frame assembly 2, the electric hoist 4 lengthens the hoist lifting rope 5 to ensure no force, the electric hoist 4 is moved backwards on the lifting fixing frame assembly 2, the electric hoist 4 is positioned right above lifting lugs 13 of each lifting frame, then the electric hoist 4 withdraws the hoist lifting rope 5, the blade lifting frame 10 is lifted again, the lifting frame lifting rope 11 is no force any more, the connection of the lifting frame lifting rope 11 and the blade lifting frame 10 is taken down, and at the moment, the center of the wind driven generator blade is moved to the center of four lifting points.
The electric hoist 4 lengthens the hoist lifting rope 5, the blade lifting frame 10 descends to the vicinity of the other end of the lifting frame lifting rope 11, the hanging basket component 7 descends to the position, blade rotary lifting lugs are arranged at four corners (the original first connecting structure installation position) of the blade lifting frame 10, the other ends of the four lifting frame lifting ropes 11 move clockwise or anticlockwise to a position, the four lifting frame lifting ropes 11 are hung into the blade rotary lifting lugs, at the moment, the four lifting frame lifting ropes 11 are arranged in a clockwise or anticlockwise inclined mode, the four lifting frame lifting ropes 11 form a torsion body, the electric hoist 4 continues to lengthens the hoist lifting rope 5, the four lifting frame lifting ropes 11 are stressed and are twisted, the blade lifting frame 10 rotates 90 degrees by taking the vertical direction as an axis under the action of the four steel wire ropes, the blade edge of the wind driven generator blade rotates 90 degrees leftwards or rightwards, the blade edge of the wind driven generator blade is enabled to be arranged leftwards or rightwards, in order to ensure that the lifting frame lifting rope 11 and the blade are not interfered with the hanging basket component 7 in the blade torsion process, the hanging basket component 7 can start to twist after being lowered to the ground, in order to ensure that the hanging basket component 7 can be left after the blade torsion can be lengthened through the blade, the hanging basket component 7 can be lengthened by the blade, and can be lifted after the hanging basket can be lifted on the ground, firstly, the hanging basket can be lifted;
because the blade lifting frame 10 rotates, the four hoist lifting ropes 5 are twisted, the bottom ends of the lifting hooks 6 of the four hoist lifting ropes 5 are taken down from the four lifting frame lifting lugs 13 at the uppermost part of the blade lifting frame 10, then the lifting hooks 6 of the hoist lifting ropes 5 of the two electric hoists 4 at the left side are hung on the two lifting frame lifting lugs 13 at the third layer positioned at the left side of the blade lifting frame 10, the lifting hooks 6 of the hoist lifting ropes 5 of the two electric hoists 4 at the right side are hung on the two lifting frame lifting lugs 13 at the second layer positioned at the right side of the blade lifting frame 10 (the horizontal height of the two lifting frame lifting lugs 13 at the third layer is lower than the horizontal height of the two lifting frame lifting lugs 13 at the second layer, and the center of gravity of the blade is positioned in the middle of the two lifting lugs);
then, the four electric hoists 4 enable the four hoisting frame hoisting ropes 11 to be free from stress, and then, the hanging basket assembly 7 is moved to take down the hoisting frame hoisting ropes 11 from the blade rotating lifting lugs;
keeping the two electric hoists 4 on the left side motionless, and lengthening the hoist lifting rope 5 by the two electric hoists 4 on the right side to enable the wind driven generator blades to rotate until the wind driven generator blades rotate to be horizontal;
and then the four electric hoists 4 continue to lengthen the ropes at the same time, the wind driven generator blade is lowered until the wind driven generator blade is placed on the ground, the disassembly of the blade is completed, the process of installing a new blade is opposite to the process, and the replacement of the blade is completed.
The utility model realizes that the wind driven generator can complete the dismantling of the old blades and the installation of the new blades without a main crane or a sling, thereby saving the lifting cost of blade replacement.
In the description of the present utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the system or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. A wind driven generator blade replacement hoisting system is characterized by comprising
The wind driven generator comprises two blade hanging ring assemblies (1), wherein the number of the blade hanging ring assemblies (1) is two and the blade hanging ring assemblies are respectively sleeved on two wind driven generator blades;
the hoisting and fixing frame assembly (2), the hoisting and fixing frame assembly (2) is arranged under the blade hanging ring assembly (1), the hoisting and fixing frame assembly (2) is fixedly connected with two blade hanging ring assemblies (1) through a plurality of fixing frame steel wire ropes (3), a plurality of electric hoists (4) are mounted on the hoisting and fixing frame assembly (2), hoist hanging ropes (5) are connected on the electric hoists (4), and a lifting hook (6) is fixedly arranged at one end, far away from the electric hoists (4), of each hoist hanging rope (5);
the hanging basket assembly (7) is arranged below the blade hanging ring assembly (1), a plurality of hanging basket motors (8) are arranged on the hanging basket assembly (7), and the blade hanging ring assembly (1) is correspondingly connected with output shafts of the hanging basket motors (8) one by one through a plurality of hanging basket steel wire ropes (9);
blade hoist and mount frame (10), blade hoist and mount frame (10) are established hoist and mount frame (2) vertical below, the top of blade hoist and mount frame (10) through a plurality of hoist and mount frame lifting ropes (11) with hoist and mount frame subassembly (2) can dismantle and be connected, the top of blade hoist and mount frame (10) is equipped with connecting piece (12) that are used for with aerogenerator blade fixed connection, be provided with a plurality of hoist and mount frame lugs (13) that are used for being connected with lifting hook (6) from top to bottom on the both sides wall of blade hoist and mount frame (10).
2. The wind turbine blade replacement hoisting system according to claim 1, wherein the blade hoisting ring assembly (1) comprises a flat hoisting belt (101) and a blade semicircular supporting piece (102), two ends of the flat hoisting belt (101) are detachably and fixedly connected with two ends of the blade semicircular supporting piece (102) through bolts, an annular structure formed after the connection of the flat hoisting belt (101) and the blade semicircular supporting piece (102) is used for being sleeved on a wind turbine blade and abutted to the outer side of a rainproof ring of the wind turbine blade, and hoisting ring connecting pieces (103) used for being connected with a fixing frame steel wire rope (3) and a hanging basket steel wire rope (9) are fixedly arranged at two ends of the blade semicircular supporting piece (102).
3. The wind turbine replacement blade hoisting system according to claim 1, wherein a rain-proof ring support assembly (14) is arranged beside the blade hoisting ring assembly (1), the rain-proof ring support assembly (14) comprises an upper arc support (1401) which is used for being abutted against the inner side of a rain-proof ring of a wind turbine blade and a lower arc support (1402) which is fixedly connected with a wind turbine pitch bearing, and the upper arc support (1401) and the lower arc support (1402) are fixedly connected through a support screw (1403).
4. The wind turbine blade replacement hoisting system according to claim 1, wherein the hoisting fixing frame assembly (2) is of a frame structure, a plurality of electric hoists (4) are fixed at the bottom of the hoisting fixing frame assembly (2), a plurality of fixing frame lifting lugs (201) which are connected with the fixing frame steel wire ropes (3) in one-to-one correspondence are fixedly arranged at the upper part of the hoisting fixing frame assembly (2), and a fixing frame tower barrel butt arc plate (202) is fixedly arranged at one side, close to a wind turbine tower barrel, of the hoisting fixing frame assembly (2).
5. The wind driven generator blade replacement hoisting system according to claim 4, wherein a fixing frame tower barrel hanging strip (203) is arranged on one side, close to a wind driven generator tower barrel, of the hoisting fixing frame assembly (2), one end of a fixing frame hanging strip pulling screw (204) is fixedly connected to two ends of the fixing frame tower barrel hanging strip (203), fixing frame hanging strip pulling fixing blocks (205) which are used for being connected with the fixing frame hanging strip pulling screw (204) in a one-to-one correspondence mode are fixedly arranged on the hoisting fixing frame assembly (2), and one end, far away from the fixing frame tower barrel hanging strip (203), of the fixing frame hanging strip pulling screw (204) penetrates through and stretches out of the fixing frame hanging strip pulling fixing blocks (205) to be in threaded connection with nuts.
6. A wind turbine blade replacement hoisting system according to claim 1, wherein the nacelle assembly (7) comprises a nacelle first bottom plate (701), two nacelle second bottom plates (702) are respectively arranged at two ends of the nacelle first bottom plate (701), the two nacelle second bottom plates (702) are positioned at the same side of the nacelle first bottom plate (701), one ends of the two nacelle second bottom plates (702) are respectively fixedly connected with the end parts of the nacelle first bottom plate (701) to form a C-shaped structure, two nacelle lifting frames (703) are respectively fixedly arranged on the nacelle second bottom plate (702), and the nacelle motor (8) is fixedly arranged on the nacelle lifting frames (703).
7. A wind turbine replacement blade lifting system according to claim 6, wherein the first bottom plate (701) of the nacelle is provided with a nacelle tower abutment arc (704) fixedly arranged on a side of the nacelle adjacent to the wind turbine tower.
8. The wind turbine blade replacement hoisting system according to claim 6, wherein two hanging basket second bottom plates (702) are used for being close to one ends of wind turbine towers, hanging basket hanging strap pulling fixed blocks (705) are fixedly arranged at one ends of the hanging basket hanging strap pulling fixed blocks (705), hanging basket hanging strap pulling screw rods (706) are connected to the hanging basket hanging strap pulling fixed blocks (705), one ends of the two hanging basket hanging strap pulling screw rods (706) are fixedly connected with two ends of hanging basket tower hanging straps (707) respectively, and the other ends of the two hanging basket hanging strap pulling screw rods (706) penetrate through the hanging basket hanging strap pulling fixed blocks (705) and then are connected with nuts through threads.
9. The wind turbine blade replacement system according to any one of claims 1 to 8, wherein the blade lifting frame (10) is a C-shaped frame structure with an open vertical side, the blade lifting frame (10) is fixedly provided with a blade support fixing plate (1001) on one side close to a wind turbine tower, the top of the blade support fixing plate (1001) is rotationally connected with the blade lifting frame (10), two vertically slidable blade support arc-shaped pieces (1002) are slidably arranged on the blade support fixing plate (1001), the blade support arc-shaped pieces (1002) are arranged on the inner side of the blade lifting frame (10), the blade support fixing plate (1001) is provided with a vertically arranged tension spring (1003) which is arranged on one side close to the wind turbine tower and is in one-to-one correspondence with the blade support arc-shaped pieces (1002), one end of the tension spring (1003) far away from the end of the blade support fixing plate (1001) is fixedly connected with the blade support fixing plate (1001), the other end of the tension spring (1003) above is fixedly connected with one end of the pull rope (1005) around the end of the pull rope (1005) which is fixedly connected with the end of the pull rope (1005) around the end of the pull rope (1005), the other end of the stretching spring (1003) positioned below is fixedly connected with the blade supporting arc-shaped piece (1002) positioned below.
10. A wind turbine blade replacement hoisting system according to claim 9, wherein the nacelle assembly (7) is provided with an electric push rod (15), one end of the electric push rod (15) is rotatably connected with the nacelle assembly (7), and the blade support fixing plate (1001) is provided with a push rod connecting pin (16) on one side close to the wind turbine tower, the push rod connecting pin being detachably connected with the other end of the electric push rod (15) through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222768214.6U CN219384446U (en) | 2022-10-20 | 2022-10-20 | Wind driven generator replacement blade hoisting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222768214.6U CN219384446U (en) | 2022-10-20 | 2022-10-20 | Wind driven generator replacement blade hoisting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219384446U true CN219384446U (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222768214.6U Active CN219384446U (en) | 2022-10-20 | 2022-10-20 | Wind driven generator replacement blade hoisting system |
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| Country | Link |
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| CN (1) | CN219384446U (en) |
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2022
- 2022-10-20 CN CN202222768214.6U patent/CN219384446U/en active Active
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