CN110578654B - Blade forming method and blade - Google Patents

Blade forming method and blade Download PDF

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Publication number
CN110578654B
CN110578654B CN201910948091.4A CN201910948091A CN110578654B CN 110578654 B CN110578654 B CN 110578654B CN 201910948091 A CN201910948091 A CN 201910948091A CN 110578654 B CN110578654 B CN 110578654B
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China
Prior art keywords
blade
shell
debugging
pressurizing tool
connecting piece
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CN201910948091.4A
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Chinese (zh)
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CN110578654A (en
Inventor
赵立岩
刘妍
宋秋香
许有木
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Sinoma Technology Pingxiang Wind Power Blade Co Ltd
Sinomatech Wind Power Blade Co Ltd
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Sinomatech Wind Power Blade Co Ltd
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Priority to CN201910948091.4A priority Critical patent/CN110578654B/en
Publication of CN110578654A publication Critical patent/CN110578654A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • 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
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

The invention discloses a blade forming method and a blade, wherein the blade forming method comprises the steps of forming a shell to be assembled in a blade shell forming die, wherein the shell to be assembled is one of a windward shell and a leeward shell of the blade; debugging a pressurizing tool, wherein the pressurizing tool comprises a connecting piece, the connecting piece is used for connecting a web plate to be installed, and the debugging of the pressurizing tool comprises debugging the chord-direction position of a blade of the connecting piece; connecting a connecting piece of a pressurizing tool with a web plate to be installed; connecting the pressurizing tool and the web plate to be installed with the shell forming die in an aligning manner, so that the web plate to be installed is connected with the shell to be assembled; and assembling the other of the windward shell and the leeward shell with the shell to be assembled to obtain the blade. The blade forming method and the blade provided by the invention aim to ensure that the web plate to be installed is accurately and efficiently bonded on the shell to be assembled, and the forming efficiency of the blade is improved.

Description

Blade forming method and blade
Technical Field
The invention relates to the technical field of wind power, in particular to a blade forming method and a blade.
Background
With the continuous development of wind power technology, it is a development trend in the industry to provide wind generating sets with higher power and stable operation, and the blades of the wind generating sets with high power are longer and longer on the one hand. The wind driven generator blade mainly comprises a shell and a web plate, wherein the shell comprises two half shells, namely a windward shell and a leeward shell, and a hollow space between the two half shells is supported by the web plate in the extending direction of the blade.
In the manufacturing of the blade, the web is adhered to the shell of the blade as a key step of blade forming, but the web is often adhered to the shell in a large amount of time, and when the blade forming method is not reasonable, the web is often not accurately and efficiently adhered to the shell, so that the blade is formed less efficiently.
Therefore, a new blade forming method and a new blade are needed.
Disclosure of Invention
The embodiment of the invention provides a blade forming method and a blade, aiming at accurately and efficiently bonding a web plate to be installed on a shell to be assembled and further improving the forming efficiency of the blade.
In one aspect, an embodiment of the present invention provides a blade forming method, including: forming a shell to be assembled in a blade shell forming die, wherein the shell to be assembled is one of a windward shell and a leeward shell of a blade; debugging a pressurizing tool, wherein the pressurizing tool comprises a connecting piece, the connecting piece is used for connecting a web plate to be installed, and the debugging of the pressurizing tool comprises debugging the chord-direction position of a blade of the connecting piece; connecting a connecting piece of a pressurizing tool with a web plate to be installed; connecting the pressurizing tool and the web plate to be installed with the shell forming die in an aligning manner, so that the web plate to be installed is connected with the shell to be assembled; and assembling the other of the windward shell and the leeward shell with the shell to be assembled to obtain the blade.
According to one aspect of the embodiment of the invention, the debugging of the pressurizing tool comprises the first debugging of the chord-wise position of the blade of the connecting piece, wherein the first debugging comprises the following steps: connecting the connecting piece with the standard web plate; connecting the pressurizing tool and the standard web plate with the shell forming die in an alignment manner, so that the standard web plate is connected with the shell to be assembled; and adjusting the relative position of the pressurizing tool and the shell forming die, so that the chord-wise distance between the first position reference surface of the standard web and the edge of the blade shell and the first preset distance are within a first error range.
According to an aspect of an embodiment of the invention, the standard web comprises two surfaces oppositely arranged in a blade chord direction, and the blade shell comprises a leading edge and a trailing edge; the first position reference surface is a surface close to the leading edge, and the chord-wise distance between the first position reference surface of the standard web and the edge of the leading edge and a first preset distance are within a first error range; or the first position reference surface is a surface close to the trailing edge, and the chord-wise distance between the first position reference surface of the standard web and the edge of the trailing edge and the first preset distance are within a first error range; optionally, the first error range is ± 5 mm.
According to one aspect of the embodiment of the invention, the debugging of the pressurizing tool comprises performing second debugging on the chord-wise position of the blade on the connecting piece, wherein the second debugging comprises the following steps: connecting the pressurizing tool with the shell forming die in an aligning way; adjusting the relative position of the pressurizing tool and the shell forming die to enable the chord-wise distance between the second position reference surface of the pressurizing tool and the edge of the blade shell to be within a second error range, wherein the second error range is smaller than the first error range; optionally, the second error range is ± 3 mm.
According to one aspect of the embodiment of the present invention, the debugging the pressurizing tool further includes debugging the position of the connecting member, and the debugging the position of the connecting member includes: keeping the pressurizing tool away from the shell forming die; installing debugging pieces on at least part of the connecting pieces, and enabling the debugging pieces to generate projection on the reference surface; determining that a fit line of a plurality of projections of the plurality of test pieces on the reference surface is in a preset shape; optionally, the predetermined shape is a linear shape.
According to one aspect of the embodiment of the present invention, the debugging the pressurizing tool further includes correcting the pressurizing tool, and the correcting the pressurizing tool includes: connecting the connecting piece with the standard web plate; connecting the pressurizing tool and the standard web plate with the shell forming die in an alignment manner, so that the standard web plate is connected with the shell to be assembled; arranging an adjusting piece in a bonding area of the blade shell, wherein the bonding area is used for bonding a standard web plate; and correcting the pressurizing tool so that the standard web plate is attached to the adjusting piece.
According to one aspect of the embodiment of the invention, the connecting piece is a sucker component, the debugging of the pressurizing tool further comprises the debugging of the pressure of the connecting piece, and the debugging of the pressure of the connecting piece comprises the following steps: vacuumizing the connecting piece, and measuring the absolute pressure at two sides of the connecting piece as a first pressure; after the vacuumizing is finished for a preset time, measuring the absolute pressure on the two sides of the connecting piece to be a second pressure; judging whether the second pressure is greater than or equal to 3/4 times of the first pressure; and if the second pressure is judged to be less than 3/4 times of the first pressure, the connecting piece is adjusted until the second pressure is more than or equal to 3/4 times of the first pressure.
According to an aspect of the embodiment of the present invention, connecting the connecting member of the pressurizing tool with the web to be installed includes connecting the connecting member of the pressurizing tool with the web to be installed on the assembling bracket, wherein before the connecting member of the pressurizing tool is connected with the web to be installed, the blade forming method further includes: and debugging the assembling bracket.
According to an aspect of an embodiment of the present invention, the standard web includes a plurality of first fitting portions along a long axis direction, the assembly bracket includes a second fitting portion matching the first fitting portion, and the commissioning of the assembly bracket includes: connecting the assembly bracket with the standard web; and adjusting the position of the assembling bracket to ensure that the first matching part is correspondingly connected with the second matching part.
According to an aspect of the embodiments of the present invention, the debugging of the assembly bracket includes debugging a center line of the assembly bracket, the assembly bracket includes a plurality of mounting brackets that are sequentially arranged in a long axis direction, and the debugging of the center line of the assembly bracket includes: connecting the central points of the mounting racks; and adjusting the positions of the mounting racks so that the central points of the mounting racks are connected on a straight line.
In another aspect, an embodiment of the present invention provides a blade, which is manufactured by the above blade forming method.
According to the blade forming method and the blade provided by the embodiment of the invention, the pressing tool is debugged, so that the chord-wise position of the connecting piece on the pressing tool on the blade is accurate when the connecting piece on the pressing tool is connected with the blade shell forming die. After debugging is completed, a pressurizing tool is used for connecting the web to be installed to the shell to be assembled, so that the web to be installed can be installed on the shell to be assembled quickly and accurately, the relative position between the web to be installed and the shell to be assembled is prevented from being adjusted for many times in the installation process, and the forming efficiency of the blade can be improved.
Drawings
In the following, brief descriptions will be given to the drawings required to be used in the embodiments of the present invention, and those skilled in the art can obtain other drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a blade forming method according to an embodiment of the invention;
FIG. 2 is a schematic view of the overall structure of the assembly of the pressing tool and the assembly bracket according to one embodiment of the present invention;
FIG. 3 is a schematic structural view of a press tool according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of the assembly of the pressing tool and the shell forming mold according to one embodiment of the present invention;
FIG. 5 is a schematic structural view of a mounting bracket of one embodiment of the present invention;
FIG. 6 is a flowchart illustrating step S120 according to an embodiment of the present invention;
FIG. 7 is a schematic view of a blade according to an embodiment of the present invention.
Description of the labeling:
wherein:
y-chord direction; n-width direction;
1-a shell forming die; 11-a base; 111-a first positioning portion; 12-a housing to be assembled;
2-pressurizing the tool; 21-a connector; 211-a second position reference surface; 22-a lower press plate; 23-a second location portion;
3-standard web; 31-a first position reference surface;
4-assembling a bracket; 41-a mounting frame; 411-a support portion; 412-a chord wise stop;
5-an adjusting part;
100-blade; 110-windward side shell; 120-leeward side shell; 130-leading edge; 140-the trailing edge; 150-a web; 160-hollow space.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, for the purposes of illustrating the principles of the invention. Additionally, the components in the drawings are not necessarily to scale. For example, the dimensions of some of the elements or regions in the figures may be exaggerated relative to other elements or regions to help improve understanding of embodiments of the present invention.
The directional terms used in the following description are used in the illustrated directions, and do not limit the specific configurations of the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise specified, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Furthermore, the terms "comprises," "comprising," "includes," "including," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure or component comprising a list of elements does not include only those elements but may include other mechanical components not expressly listed or inherent to such structure or component. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
For better understanding of the present invention, a blade forming method and a blade 100 according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 7.
Referring to fig. 1 to 7 together, fig. 1 shows a schematic flow chart of a blade forming method according to an embodiment of the present invention, fig. 2 shows a schematic overall structure of an assembly of a pressing tool and an assembly bracket according to an embodiment of the present invention, fig. 3 shows a schematic structure of a pressing tool according to an embodiment of the present invention, fig. 4 shows a schematic structure of an assembly of a pressing tool according to an embodiment of the present invention and a blade shell forming mold, fig. 5 shows a schematic structure of an installation frame according to an embodiment of the present invention, fig. 6 is a schematic flow chart of step S120 according to an embodiment of the present invention, and fig. 7 shows a schematic structure of a blade according to an embodiment of the present invention.
Referring to fig. 1, a blade forming method according to an embodiment of the present invention includes the following steps:
and S110, forming a shell to be assembled in the blade shell forming die, wherein the shell to be assembled is one of a windward shell and a leeward shell of the blade.
S120, debugging the pressurizing tool, wherein the pressurizing tool comprises a connecting piece, the connecting piece is used for connecting a web plate to be installed, and debugging the pressurizing tool comprises debugging the chord-direction position of the blade on the connecting piece.
And S130, connecting the connecting piece of the pressurizing tool with the web to be installed.
And S140, connecting the pressurizing tool and the web to be installed with the shell forming die in an alignment manner, so that the web to be installed is connected with the shell to be assembled.
And S150, assembling the other one of the windward shell and the leeward shell with the shell to be assembled to obtain the blade.
In the blade forming method provided by the embodiment of the invention, the pressurizing tool 2 is debugged, so that when the connecting piece 21 on the pressurizing tool 2 is connected with the shell forming die 1, the chord-wise Y position of the connecting piece 21 on the blade 100 is accurate. After debugging is completed, the pressurizing tool 2 is used for connecting the web to be installed to the shell 12 to be assembled, so that the web to be installed can be quickly and accurately installed on the shell 12 to be assembled, the relative position between the web to be installed and the shell 12 to be assembled is prevented from being adjusted for many times in the installation process, and the forming efficiency of the blade 100 can be improved.
In S110, forming the shell 12 to be assembled in the blade shell forming mold 1 may include placing a girder in the blade shell forming mold 1, and then laying a skin on the girder to form the shell 12 to be assembled. In specific implementation, the blade shell forming mold 1 includes a windward shell forming mold and a leeward shell forming mold, and when the shell 12 to be assembled is the windward shell 110, a main beam may be placed on the windward shell forming mold, and then a skin is laid on the main beam to form the windward shell 110. Alternatively, when the shell 12 to be assembled is the leeward shell 120, a main beam may be placed on the leeward shell forming mold, and then a skin may be laid on the main beam to form the leeward shell 120. It can be understood that the position of the main beam in the windward shell 110 or the leeward shell 120 can be located by the locating device, so that the position of the main beam in the shell 12 to be assembled is accurate, the structural precision of the shell 12 to be assembled is improved, and the shell 12 to be assembled and the web to be installed are assembled accurately.
Referring to fig. 2 to 5, the pressing tool 2 and the assembling bracket 4 cooperate with each other to accurately mount the web to be mounted on the casing 12 to be assembled. The pressing tool 2 includes a connecting member 21, a lower pressing plate 22, and a frame structure. The frame structure is composed of trusses or steel frames, etc., so as to improve the stability of the pressurizing tool 2. Further, the pressurizing tool 2 can be stably transported to be installed with the web to be installed through the reasonable truss structure. The frame structure is provided with a second positioning part 23 for positioning and connecting with the blade shell forming die 1, so that the relative position of the pressurizing tool 2 and the shell forming die 1 is accurate, and further the relative position of the web to be installed and the shell 12 to be assembled, which are installed on the pressurizing tool 2, is accurate. Optionally, the second positioning portion is a conical positioning block, the connecting member 21 is disposed on the frame structure, and the connecting member 21 is used for assembling and transporting the web to be installed and assembling the web to be installed on the casing 12 to be assembled. Due to the fact that the to-be-installed web is bonded with the to-be-assembled shell 12, the to-be-installed web and the to-be-assembled shell 12 can be firmly connected together through the pressing effect of the lower pressing plate 22.
The blade shell forming die 1 includes a cavity and a base 11, the cavity is used for forming a shell 12 to be assembled, the base 11 includes a first positioning portion 111, wherein the first positioning portion 111 is matched with a second positioning portion 23, optionally, the first positioning portion 111 may be one of a positioning block or a positioning hole, the second positioning portion 23 may be the other, and the accurate positioning of the pressurizing tool 2 and the shell forming die 1 is realized through the mutual cooperation of the first positioning portion 111 and the second positioning portion 23.
It should be noted that the web to be installed may be installed on the casing 12 to be assembled individually, or the pair of webs to be installed may be installed on the casing 12 to be assembled collectively, the installation method of the single web to be installed is similar to the installation method of the pair of webs to be installed collectively, and the embodiment of the present invention is described by taking the example that the pair of webs to be installed are installed on the casing 12 to be assembled collectively.
Referring to fig. 5, in some embodiments, the assembly frame 4 includes a plurality of mounting frames 41 arranged in sequence, and the mounting frames 41 are fixedly arranged on the ground or a mounting platform for better supporting the web to be mounted. Each mounting bracket 41 is provided with a support portion 411, and the support portion 411 is used for supporting a web to be mounted. The mounting frame 41 includes two opposite brackets, each bracket includes a chord-direction limiting rod 412, when the pair of webs to be mounted is placed on the assembly bracket 4, the opposite chord-direction limiting rods 412 are used for limiting the position between the two webs to be mounted, and optionally, a support tool may be provided between the pair of webs to be mounted, so that the webs to be mounted can be in close contact with the chord-direction limiting rods 412. The chord-wise distance between the two webs to be installed, which are used in pairs, can be strictly controlled by the opposite chord-wise limiting rods 412 on the mounting frame 41, so that the webs to be installed can be accurately installed on the shell 12 to be assembled. It can be understood that the chord-wise distance between two webs to be installed, which are used in pairs, can be set according to the requirements of users, and the chord-wise distance between two webs to be installed is the distance between two webs to be installed.
Because the length and the volume of the web to be installed are large, the pressurizing tool 2 is used for assembling and transporting the web to be installed, and therefore the structural precision of the pressurizing tool 2 and the relative position of the pressurizing tool 2 and the blade shell forming die 1 need to be strictly controlled. Referring to fig. 6, in some optional embodiments, in step S120, the debugging the pressing tool includes:
and S121, performing first debugging on the chord-wise position of the blade on the connecting piece.
And S122, performing second debugging on the chord-wise position of the blade on the connecting piece.
And S123, debugging the position of the connecting piece.
And S124, correcting the pressurizing tool.
And S125, debugging the pressure of the connecting piece.
Through debugging pressurization frock 2 for the structure of pressurization frock 2 self satisfies the requirement and makes being connected that pressurization frock 2 and web and shell forming die 1 can be accurate, thereby improves the shaping efficiency of blade 100 and the quality of blade 100. The sequence from step S121 to step S125 may be set according to the actual requirement of the user.
In some optional embodiments, in S121, the first tuning of the chord-wise position of the blade for the connector includes:
step 1, connecting the connecting piece 21 with the standard web 3.
And 2, connecting the pressurizing tool 2 and the standard web 3 with the blade shell forming die 1 in an aligning manner, so that the standard web 3 is connected with the shell 12 to be assembled.
And 3, adjusting the relative position of the pressurizing tool 2 and the blade shell forming die 1, so that the chord-wise distance between the first position reference surface 31 of the standard web 3 and the edge of the shell of the blade 100 and a first preset distance are within a first error range.
Specifically, after the debugging of the pressurizing tool 2 is finished, the connecting piece 21 needs to be separated from the standard web 3, so that the connecting piece 21 and the web to be installed are conveniently connected. It should be noted that, the standard web 3 is a web structure whose structural size meets the design requirement, the standard web 3 is consistent with the structural size of the qualified web to be installed, and the pressurizing tool 2 is debugged by using the standard web 3, so that the debugging precision can be improved.
In specific implementation, after the connecting piece 21 and the standard web 3 are connected, the pressurizing tool 2 and the standard web 3 are hoisted to the blade shell forming die 1, and the pressurizing tool 2 and the standard web 3 are connected with the blade shell forming die 1 in an alignment manner through the mutual matching between the first positioning part 111 and the second positioning part 23. After the pressurization tool 2 is aligned with the base 11 of the blade shell forming die 1, measuring the relative position between the standard web 3 and the blade shell forming die 1 along the chord direction Y by using laser scanning equipment or a standard detection device to obtain a measurement result. And adjusting the relative position of the pressurizing tool 2 and the blade shell forming die 1 according to the measurement result, so that the chord-wise distance between the first position reference surface 31 of the standard web 3 and the edge of the shell of the blade 100 and the first preset distance are within a first error range.
When the pressurizing tool 2 is debugged, the module on the pressurizing tool 2 may be manually adjusted or automatically adjusted, for example, the connecting member 21 is moved according to the measurement result, so that the chord-wise Y position of the blade of the connecting member 21 meets the requirement. The blade chord direction Y position of the connecting piece 21 is the distance between the connecting piece 21 and the edge of the blade 100 along the blade chord direction Y when the pressurizing tool 2 is connected with the shell forming die 1.
According to an aspect of the embodiment of the present invention, the standard web 3 comprises two surfaces oppositely arranged in the chord direction Y of the blade 100, the blade shell comprises a leading edge 130 and a trailing edge 140, the first position reference surface 31 of the standard web 3 is a surface close to the leading edge 130, the chord direction distance between the first position reference surface 31 of the standard web 3 and the edge of the leading edge 130 of the blade 100 is within a first error range; alternatively, the first position reference surface 31 of the standard web 3 is a surface close to the trailing edge 140, and the chord-wise distance between the first position reference surface 31 of the standard web 3 and the edge of the trailing edge 140 of the blade 100 and the first preset distance are within a first error range.
Optionally, the first error range is ± 5 mm. Specifically, the difference between the chordwise distance between the first positional reference plane 31 of the standard web 3 and the edge of the shell of the blade 100 near the leading edge 130 and the first predetermined distance is within ± 5 mm. Optionally, the first error range is ± 3mm, and the difference between the chordwise distance between the first position reference surface 31 of the master web 3 and the edge of the shell of the blade 100 near the trailing edge 140 and the first predetermined distance is within ± 3 mm. Through the step of carrying out first debugging to pressurization frock 2, can reduce the error that pressurization frock 2 produced in equipment and handling process for the web of waiting to assemble can be fast, accurate the connection on waiting to assemble casing 12.
In order to improve the accuracy of the structure of the pressing tool 2, in some alternative embodiments, in step S122, the second tuning of the chord-wise position of the blade on the connecting member includes:
step 1, connecting the pressurizing tool 2 and the shell forming die 1 in an aligning way.
And 2, adjusting the relative position of the pressurizing tool 2 and the shell forming die 1, so that the chord-wise distance between the second position reference surface 211 of the pressurizing tool 2 and the edge of the shell of the blade 100 is within a second error range, and the second error range is smaller than the first error range. The second position reference surface 211 may be a surface of the connecting member 21, and may be set according to actual requirements, for example, according to the thickness of the standard web 3.
In some alternative implementations, the second error range is ± 3 mm. Since the position adjustment requirement of the connecting member 21 is higher than the actual position requirement when the connecting member 21 is connected to the standard web 3, the connecting member 21 needs to be adjusted with higher precision, that is, the second error range needs to be smaller than the first error range, so as to counteract the deviation influence caused by the excessive weight of the vacuum suction force or the standard web 3 or the deformation of the pressing tool 2 or the blade shell forming die 1. It can be understood that the second error range can be set according to the requirements of users, and the second error range is reasonably set, so that the accuracy of the structure of the pressurizing tool 2 is improved, and further the bonding of the web to be installed, which is assembled through the pressurizing tool 2, can be more accurate on the shell 12 to be assembled.
The specific implementation process of performing the second debugging on the chord-wise Y position of the blade on the connecting member 21 is similar to the specific implementation process of performing the first debugging on the chord-wise Y position of the blade on the connecting member 21, and is not described again.
Since the standard web 3 is connected to the pressing tool 2 via the connecting piece 21, the positional accuracy of the connecting piece 21 has a direct influence on the final position of the standard web 3 and the web to be mounted. It is necessary to ensure that the position of the connection member 21 is in agreement with the design value, and it is necessary to accurately detect the position of the connection member 21 so that the position of the connection member 21 satisfies the design standard. In some optional embodiments, in step S123, the adjusting the position of the connection element 21 further includes adjusting the position of the connection element 21, where the adjusting the position of the connection element 21 includes:
step 1, keeping the pressurizing tool 2 away from the blade shell forming die 1.
And 2, mounting the debugging piece on at least part of the connecting piece 21, and enabling the debugging piece to generate projection on the reference surface.
And 3, determining that the fit lines of the projections of the plurality of test pieces on the reference surface are in a preset shape. Optionally, the predetermined shape is a linear shape.
In specific implementation, the pressurizing tool 2 is separated from the blade shell forming die 1 by using a crown block, and at least part of the connecting pieces 21 are provided with debugging pieces, for example, a plumb is arranged on the connecting pieces 21, the plumb is used for making projection points of the connecting pieces 21 on the ground, and the positions of the connecting pieces 21 are debugged, so that fit lines of a plurality of projection points of a plurality of debugging pieces on a reference plane are in a straight line.
In some embodiments, a storage rack of the pressing tool 2 is further placed on the assembly support 4, the storage rack can be connected with the assembly support 4, the distance between the edge of the storage rack and a fitting line of the projection points is 3cm, and specifically, the distance can be set according to actual requirements. The storage rack is of conventional structure in the art and will not be described in detail.
In order to further enable the web to be installed to be accurately installed on the casing 12 to be assembled, in step S124, correcting the pressing tool 2 further includes correcting the pressing tool 2, wherein correcting the pressing tool 2 includes: connecting the connecting piece 21 with the standard web 3; connecting the pressurizing tool 2 and the standard web 3 with the shell forming die 1 in an aligning way, so that the standard web 3 is connected with the shell 12 to be assembled; arranging an adjusting piece 5 in a bonding area of the shell of the blade 100, wherein the bonding area is used for bonding a standard web 3; and correcting the pressurizing tool 2 so that the standard web 3 is attached to the adjusting piece 5.
In some optional embodiments, the connecting member 21 is a suction cup assembly, and by setting the connecting member 21 as the suction cup assembly, the connecting member 21 effectively prevents the web to be installed from being damaged during the process of stably assembling the web to be installed and hoisting the web to be installed, thereby improving the quality of the blade 100.
In some embodiments, the connecting member 21 is connected to the standard web 3 on the assembling bracket 4, and then the adjusting members 5 with preset thickness are placed at the bonding area of the casing 12 to be assembled at specified intervals, for example, the adjusting members 5 may be adjusting pads, and the preset thickness of the adjusting members 5 is the same as the thickness between the adhesive layers between the web to be installed and the casing 12 to be assembled. Alternatively, the specified interval may be 0.5m to 3 m. After the adjustment pieces 5 with preset thicknesses are placed at the bonding area of the shell 12 to be assembled at specified intervals, the connecting piece 21 and the clamping device on the pressurizing tool 2 are loosened, the standard web 5 freely falls and contacts with the adjustment pieces 5, then the connecting piece 21, such as a vacuum chuck and the clamping device, is started again, and the lower pressing plate 22 on the pressurizing tool 2 is manually adjusted to the relative position with the standard web 3 until the standard web 5 contacts with the adjustment pieces 5.
By correcting the pressurizing tool 2, the standard web 3 is completely attached to the adjusting piece 5, and the local profile deviation on the assembling support 4 and the position deviation of a crown block in the process of lifting the pressurizing tool 2 and the standard web 2 are eliminated. The step can also be adjusted by using a hydraulic device or an automatic ejector rod and the like of the pressurizing tool 2.
Further, in step S125, the debugging of the pressure on the connection element 21 may further include debugging the pressure on the connection element 21, where the debugging of the pressure on the connection element 21 includes: vacuumizing the connecting piece 21, and measuring the absolute pressure at two sides of the connecting piece 21 as a first pressure; after the vacuumizing is finished for a preset time, measuring the absolute pressure on the two sides of the connecting piece 21 as a second pressure; judging whether the second pressure is greater than or equal to 3/4 times of the first pressure; if the second pressure is judged to be less than 3/4 times of the first pressure, the connecting piece 21 is adjusted until the second pressure is more than or equal to 3/4 times of the first pressure.
Specifically, after the pressurization tool 2 is located on the assembly support 4, the support tool is opened, so that the standard web 3 is tightly attached to the connection piece 21 on the pressurization tool 2, for example, the standard web 3 is tightly attached to the vacuum chuck. Starting a vacuum pump to vacuumize, ensuring that absolute pressure gauges on two sides of all vacuum suckers vacuumize to a first pressure, optionally closing a valve, ensuring that all vacuum gauge readings are a second pressure within 15 minutes, and if the second pressure is greater than or equal to 3/4 times of the first pressure, determining that the vacuum gauges are qualified for debugging, optionally, the first pressure is more than negative 0.44Kpa, and the second pressure is more than negative 0.3 Kpa.
In some optional embodiments, in step S130, connecting the connecting member 21 of the pressing tool 2 with the web to be installed includes connecting the connecting member 21 of the pressing tool 2 with the web to be installed on the assembly bracket 4, wherein before the connecting member 21 of the pressing tool 2 connects the web to be installed, the blade forming method further includes: the assembly fixture 4 is set up. Through will treating the installation web place on equipment support 4, the equipment of the web of being convenient for install is treated to pressurization frock 2, can make the position of treating the installation web accurate moreover.
The assembling bracket 4 is provided with an axial positioning device consistent with the overall coordinate system of the blade 100 in the long axis direction, so that the web to be installed can be initially positioned on the assembling bracket 4, and the web to be installed can be more accurately installed on the shell 12 to be assembled. Alternatively, the axial positioning means may be located at a steel frame extension of the mounting frame 41 of the assembly bracket 4. In some embodiments, since the assembly bracket 4 is used for positioning the position of the web to be installed, in order to make the position of the web to be installed reasonable, the standard web 3 includes a plurality of first fitting portions along the long axis direction, the assembly bracket 4 includes a second fitting portion matched with the first fitting portions, and the debugging of the assembly bracket 4 includes: connecting the assembly bracket 4 with the standard web 3; and adjusting the position of the assembling bracket 4 to enable the first matching part to be correspondingly connected with the second matching part.
The second matching part of the assembling support 4 is connected with the first matching part of the standard web 3 in a matching manner, so that the axial position of the standard web 3 on the assembling support 4 is positioned, wherein the axial position of the standard web 3 is ensured by a plurality of groups of mounting frames 41 which are arranged in parallel. Specifically, each mounting bracket 41 is provided with a support portion 411, and the support portions 411 are used for supporting the standard web 3, so that when the standard web 3 is placed on the assembly bracket 4 by arranging the mounting brackets 41 in parallel, the positions of the standard web 3 along the long axis direction can be positioned, and the standard web 3 is prevented from being inclined.
In some embodiments, the adjusting the assembly fixture 4 includes adjusting a center line of the assembly fixture 4, the assembly fixture 4 includes a plurality of mounting brackets 41 arranged in series along a long axis direction, and the adjusting the center line of the assembly fixture 4 includes: connecting the central points of the mounting brackets 41; the positions of the plurality of mounting brackets 41 are adjusted such that the center points of the plurality of mounting brackets 41 are connected on a straight line.
Optionally, the central line of the assembly bracket 4 is debugged and calibrated by using a laser detection or line projection method, and in specific implementation, the central line of the assembly bracket 4 may be debugged and calibrated by using a three-coordinate laser scanner. Firstly, a three-dimensional model of an assembly support 4 is established, then a scanning datum point and a central line reference line of the assembly support 4 are set on a construction site, a central point reference line of the assembly support 4 can be laser projection or a reference straight line can be positioned by using central points of two mounting brackets 41, after measurement is carried out from the reference straight line to two sides, the position between the two brackets which are oppositely arranged on each mounting bracket 41 is respectively positioned, then deviation between the actual position of the support and the theoretical position of the model is measured through a three-coordinate scanner, and the deviation is calibrated, so that the central points of the mounting brackets 41 are connected on the same straight line.
After the web plate to be installed is placed on the assembly support 4, the web plate needs to be supported by a supporting tool, and the corresponding supporting tool can be designed independently or integrally with the pressurizing tool 2. Through the application of supporting the frock, guarantee to wait to install the web and press close to the chordwise gag lever post 412 of equipment support 4 completely in chordwise Y position, guarantee two chordwise Y intervals of waiting to install between the web. After the assembly support 4 is debugged, a ground foot is arranged on the ground or on the mounting platform to fix the mounting frame 41, the depth of the ground foot is larger than or equal to 100mm, a fastening nut is locked, and the stability of the assembly support 4 is enhanced.
In some embodiments, the supporting portion 411 on the mounting bracket 41 is movably connected with the mounting bracket 41, and in order to improve the positioning accuracy of the assembly bracket 4 on the standard web 3, the position of the supporting portion 411 needs to be adjusted. When the position of the supporting portion 411 is adjusted, the pressurizing tool 2 with the standard web 3 is firstly hung back to the assembling bracket 4, then the supporting portion 411 on the mounting bracket 41 is adjusted manually or by using an automatic device as the position, so that the supporting portion 411 is tightly attached to the connecting flange of the standard web 3 along the width direction N, and then the fastening device on the supporting portion 411 is locked.
In summary, according to the blade forming method and the blade 100 provided by the embodiment of the present invention, the pressing tool 2 is debugged, so that the chord direction Y position on the blade 100 is accurate when the connecting member 21 on the pressing tool 2 is connected to the blade shell forming mold 1. After debugging is completed, the pressurizing tool 2 is used for connecting the web to be installed to the shell 12 to be assembled, so that the web to be installed can be quickly and accurately installed on the shell 12 to be assembled, the relative position between the web to be installed and the shell 12 to be assembled is prevented from being adjusted for many times in the installation process, and the forming efficiency of the blade 100 can be improved.
Referring to fig. 7, fig. 7 is a schematic structural view of a blade 100 according to an embodiment of the present invention. The embodiment of the present invention further provides a blade 100, where the blade 100 includes a shell and a web 150, the shell has an axial direction and a chord direction Y, the shell has a leading edge 13 and a trailing edge 14 in the chord direction Y, the shell includes a windward shell 110 and a leeward shell 120, the windward shell 110 and the leeward shell 120 are oppositely disposed, and the windward shell 110 and the leeward shell 120 are buckled to form a hollow space 160. The web 150 is disposed in the hollow space 160, and the web 150 is connected to the windward shell 110 and the leeward shell 120 respectively.
The embodiment of the invention also provides a blade 100 which is manufactured by the blade forming method. Through debugging pressurization frock 2 for utilize pressurization frock 2 can be high-efficient, accurate will wait to install the web and bond on waiting to assemble casing 12, improve the preparation efficiency of blade 100 and the quality of blade 100, so, easily popularize and apply.
It is to be understood that relational terms such as "first," "second," and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation or arrangement in sequences other than those illustrated or otherwise described herein.
The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Also, different features that are present in different embodiments may be combined to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art upon studying the drawings, the specification, and the claims.

Claims (14)

1. A method of forming a blade, comprising:
forming a shell to be assembled in a blade shell forming die, wherein the shell to be assembled is one of a windward shell and a leeward shell of a blade;
debugging a pressurizing tool, wherein the pressurizing tool comprises a connecting piece, the connecting piece is used for sucking and attaching a web to be installed, the debugging of the pressurizing tool comprises the steps of debugging the position of the connecting piece for multiple times and correcting the pressurizing tool, the debugging of the position of the connecting piece for multiple times comprises the steps of debugging the chord-direction position of a blade on the connecting piece, and a standard web is installed on the connecting piece for pre-debugging when the chord-direction position of the blade is debugged on the connecting piece;
connecting a connecting piece of the pressurizing tool with the web plate to be installed;
connecting the pressurizing tool and the web plate to be installed with the shell forming die in an aligning manner, so that the web plate to be installed is connected with the shell to be assembled;
and assembling the other of the windward shell and the leeward shell with the shell to be assembled to obtain the blade.
2. The blade forming method according to claim 1, wherein the debugging of the pressurization tool comprises performing first debugging of a chord-wise position of the blade on the connecting piece, and the first debugging comprises:
connecting the connecting piece with the standard web;
connecting the pressurizing tool and the standard web plate with the shell forming die in an alignment manner, so that the standard web plate is connected with the shell to be assembled;
and adjusting the relative position of the pressurizing tool and the shell forming die, so that the chord-wise distance between the first position reference surface of the standard web and the edge of the blade shell and a first preset distance are within a first error range.
3. The method of claim 2, wherein the standard web comprises two surfaces oppositely disposed in a blade chord direction, and the blade shell comprises a leading edge and a trailing edge;
the first position reference surface is a surface close to the leading edge, and the chord-wise distance between the first position reference surface of the standard web and the edge of the leading edge and the first preset distance are within a first error range; or the first position reference surface is a surface close to the trailing edge, and the chord-wise distance between the first position reference surface of the standard web and the edge of the trailing edge and the first preset distance are within a first error range.
4. A method according to claim 3, wherein the first error range is preferably ± 5 mm.
5. The blade forming method according to claim 2, wherein the debugging of the pressurization tool comprises performing second debugging of the chord-wise position of the blade on the connecting piece, and the second debugging comprises:
connecting the pressurizing tool with the shell forming die in an aligning way;
and adjusting the relative position of the pressurizing tool and the shell forming die, so that the chord-wise distance between the second position reference surface of the pressurizing tool and the edge of the blade shell and the first preset distance are within a second error range, and the second error range is smaller than the first error range.
6. The blade shaping method according to claim 5, wherein the second error range is preferably ± 3 mm.
7. The blade forming method according to claim 1, wherein the debugging of the pressurizing tool further comprises debugging the position of the connecting piece, and the debugging of the position of the connecting piece comprises:
keeping the pressurizing tool away from the shell forming die;
installing debugging pieces on at least part of the connecting pieces, and enabling the debugging pieces to generate projection on a reference plane;
and determining that a fitting line of a plurality of projections of the plurality of test adjusting pieces on the reference surface is in a preset shape.
8. The method of claim 7, wherein the predetermined shape is preferably a straight shape.
9. The blade forming method according to claim 1, wherein the debugging the pressurizing tool further comprises correcting the pressurizing tool, and the correcting the pressurizing tool comprises:
connecting the connecting piece with a standard web plate;
connecting the pressurizing tool and the standard web plate with the shell forming die in an alignment manner, so that the standard web plate is connected with the shell to be assembled;
arranging an adjusting piece on a bonding area of the blade shell, wherein the bonding area is used for bonding the standard web;
and correcting the pressurizing tool so that the standard web is attached to the adjusting piece.
10. The blade forming method according to claim 1, wherein the connecting member is a suction cup assembly, the debugging of the pressurizing tool further comprises debugging pressure on the connecting member, and the debugging of the pressure on the connecting member comprises:
vacuumizing a connecting piece, and measuring absolute pressure on two sides of the connecting piece to be first pressure;
measuring the absolute pressure at two sides of the connecting piece as a second pressure after the vacuumizing is finished for a preset time;
judging whether the second pressure is greater than or equal to 3/4 times of the first pressure;
if the second pressure is judged to be less than 3/4 times of the first pressure, the connecting piece is adjusted until the second pressure is more than or equal to 3/4 times of the first pressure.
11. The blade forming method according to claim 1, wherein the connecting member of the pressurizing tool with the web to be installed comprises connecting the connecting member of the pressurizing tool with the web to be installed on an assembly bracket, wherein before the connecting member of the pressurizing tool connects with the web to be installed, the blade forming method further comprises: and debugging the assembling support.
12. The blade forming method according to claim 8, wherein the standard web includes a plurality of first engaging portions along a long axis direction, the assembly bracket includes a second engaging portion matching the first engaging portion, and the commissioning of the assembly bracket includes:
connecting the assembly bracket with a standard web;
and adjusting the position of the assembling bracket to enable the first matching part to be correspondingly connected with the second matching part.
13. The blade forming method according to claim 8, wherein the adjusting the assembly fixture includes adjusting a center line of the assembly fixture, the assembly fixture includes a plurality of mounting brackets arranged in succession in a long axis direction, and the adjusting the center line of the assembly fixture includes:
connecting the central points of the mounting racks;
adjusting the positions of the mounting racks so that the central points of the mounting racks are connected on a straight line.
14. A blade, comprising: is manufactured by a method of forming a blade according to any one of claims 1 to 10.
CN201910948091.4A 2019-10-08 2019-10-08 Blade forming method and blade Active CN110578654B (en)

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CN113232314B (en) * 2021-05-11 2022-08-30 中材科技风电叶片股份有限公司 Web assembling tool and web assembling method using same
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Effective date of registration: 20220617

Address after: 100192 9th floor, block C, block 6, Dongsheng Science Park, Zhongguancun, 66 xixiaokou Road, Haidian District, Beijing

Patentee after: SINOMATECH WIND POWER BLADE Co.,Ltd.

Patentee after: Sinoma Technology (Pingxiang) wind power blade Co., Ltd

Address before: 100192 9th floor, block C, block 6, Dongsheng Science Park, Zhongguancun, 66 xixiaokou Road, Haidian District, Beijing

Patentee before: SINOMATECH WIND POWER BLADE Co.,Ltd.