CN111102140A - Wind power blade, root platform structure of wind power blade and installation method of root platform structure - Google Patents
Wind power blade, root platform structure of wind power blade and installation method of root platform structure Download PDFInfo
- Publication number
- CN111102140A CN111102140A CN202010005977.8A CN202010005977A CN111102140A CN 111102140 A CN111102140 A CN 111102140A CN 202010005977 A CN202010005977 A CN 202010005977A CN 111102140 A CN111102140 A CN 111102140A
- Authority
- CN
- China
- Prior art keywords
- root platform
- root
- blade
- guide rail
- fixing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009434 installation Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims description 65
- 230000001070 adhesive effect Effects 0.000 claims description 65
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 238000007790 scraping Methods 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000002087 whitening effect Effects 0.000 abstract description 2
- 239000011152 fibreglass Substances 0.000 description 6
- 239000012634 fragment Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 240000007182 Ochroma pyramidale Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009787 hand lay-up Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000009755 vacuum infusion Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a wind power blade, a root platform structure of the wind power blade and an installation method thereof, belonging to the field of wind power sets, comprising a guide rail and a spliced root platform, wherein the spliced root platform comprises at least one root platform fixing plate and at least one root platform sliding plate, wherein: the guide rail is used for being installed on the inner wall of the wind power blade, and the shape of the guide rail is arc-shaped or annular; the root platform fixing plate is used for being fixedly installed on the inner wall of the wind power blade, is matched and lapped with the root platform sliding plate to form the root platform, and the root platform is opened and closed through sliding of the root platform sliding plate. According to the invention, the root platform sliding plate is embedded into the guide rail prefabricated on the inner wall of the blade root to respectively form a semi-surrounding structure, so that the stress can be effectively released, and the root platform sliding plate can slide along the circumferential direction, so that a switch of an overhaul channel is formed, and the problems of whitening and cracking at the joint of the root platform and damage of a manhole cover connecting bolt are solved.
Description
Technical Field
The invention relates to the field of wind turbine generators, in particular to a wind turbine blade, a root platform structure of the wind turbine blade and an installation method of the root platform structure.
Background
The blade root part of the wind driven generator blade is provided with a root part platform, and 1 to 2 openable manhole covers are arranged on the root part platform. The root platform has the main functions of preventing residual adhesive fragments and deposited dust in the blade from entering the hub and influencing the operation of electric devices; secondly, a support platform is provided for maintaining the blade root bolt and electric devices in the hub; and thirdly, a passage for detecting and repairing the inner cavity of the blade is provided for a maintenance worker.
In the prior art, a root platform is in full-surrounding connection with the inner wall of a blade root mainly through an adhesive and L-shaped hand lay-up layers on two sides, and a manhole cover is connected with the root platform through bolts and sealant. As the blade root load is larger and larger along with the continuous increase of the size of the blade, the deformation of the root platform is limited and is not enough to release stress, the connection part of the root platform and the inner wall of the blade root is always whitened and cracked, and the connecting bolt of the manhole cover is damaged. If the fan is not found or maintained in time, great risks are generated to the operation and maintenance safety of the fan. Therefore, there is a need to develop a blade root platform structure and mounting method that is easy to operate, efficient, reliable, and crack resistant based on the prior art.
Disclosure of Invention
The invention aims to provide a root platform structure of a wind power blade, an installation method of the root platform structure and the wind power blade, wherein the root platform structure is easy to operate, high in efficiency, high in reliability and resistant to cracking.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
in one aspect, the present invention provides a root platform structure of a wind turbine blade, comprising a guide rail and a spliced root platform, wherein the spliced root platform comprises at least one root platform fixing plate and at least one root platform sliding plate, wherein:
the guide rail is used for being installed on the inner wall of the wind power blade, the guide rail is arc-shaped or annular, and a clamping groove is formed in the guide rail;
the root platform sliding plate is embedded into the clamping groove and can slide on the guide rail along the circumferential direction;
the root platform fixing plate is fixedly installed on the inner wall of the wind power blade, the root platform is formed by matching and lapping the root platform sliding plates, and the root platform is opened and closed through sliding of the root platform sliding plates.
Further, the root platform sliding plate is semicircular, arched, crescent or elliptical.
Further, the root platform sliding plate is arched, which means a shape narrower or wider than a semicircle, and may also be arched with a radian.
Further, the cross section of the root platform sliding plate is T-shaped, L-shaped, U-shaped or omega-shaped.
Further, the lap joint overlapping part of the root platform fixing plate and the root platform sliding plate is at least 1 cm.
Furthermore, two ends of a splicing seam of the root platform fixing plate and the root platform sliding plate are provided with a chain lock catch or a hasp; or the corresponding position of the root platform sliding plate and the inner wall of the blade root is provided with a chain lock catch or a hasp.
Furthermore, part of the guide rails are located below the root platform fixing plate in parallel, the distance is 1-30mm, and a gap is reserved at the lap joint of the root platform sliding plate.
Further, the guide rail includes first guide rail and the second guide rail that is located same circumference, first guide rail parallel position is in root platform fixed plate below, and the interval is 1 ~ 30 mm.
Furthermore, the blade support device also comprises a plurality of guide rail brackets for supporting the guide rails, and the guide rail brackets are arranged below the guide rails and fixed on the inner wall of the blade.
Furthermore, a handle is arranged on the root platform sliding plate and generally located in the radius from the circle center 1/4-3/4.
Further, the spliced shape of the spliced root platform is circular.
Further, the guide rail and the root platform fixing plate are both installed on the inner wall of the blade through adhesives.
Furthermore, the blade also comprises an L-shaped adhesive tape which is respectively connected with the root platform fixing plate and the inner wall of the blade through two L-shaped side walls.
Furthermore, a limiting block is arranged on the guide rail and used for limiting the rotation range of the root platform sliding plate.
On the other hand, provide a wind-powered electricity generation blade, include wind-powered electricity generation blade's root platform structure, the equal fixed mounting of root platform fixed plate, guide rail is on blade inner wall, root platform sliding plate passes through the sliding block and slides with the guide rail draw-in groove cooperation, realizes opening and shutting of root platform.
In another aspect, a method for installing the root platform structure of the wind turbine blade includes the following steps:
(1) pretreatment: marking, polishing and dust cleaning a root platform placing area of the inner wall of the blade, and adjusting the blade posture until a to-be-bonded area of a root platform fixing plate is closest to the ground;
(2) scraping and coating an adhesive: coating an adhesive with the thickness of 3-20mm on a region to be bonded of the root platform fixing plate in a scraping manner;
(3) installing a root platform fixing plate: butting the bonding surface of the root platform fixing plate with an adhesive, enabling the root platform fixing plate to be parallel to the end surface of the blade root, arranging L-shaped bonding belts on the root platform fixing plate and the inner side of the blade, and fixing the root platform fixing plate and the inner side of the blade;
(4) installing a guide rail: coating an adhesive with the thickness of 3-20mm on a guide rail to-be-bonded area which is parallel to the root platform fixing plate and has the distance of 3-6 mm; mounting the first section of guide rail on the adhesive in the guide rail, and firmly attaching the guide rail and the adhesive;
(5) installing a root platform sliding plate, embedding the root platform sliding plate into the clamping groove from one side of the guide rail, installing all the root platform sliding plates, and sealing the guide rail;
(6) installing a chain lock: two chain lock catches are mounted in an overlapping area between the root platform fixing plate and the root platform sliding plate through screws.
Furthermore, two handles are further mounted on the root platform sliding plate through screws on the blade root side, and the mounting positions of the handles are located in the radius from the circle center 1/4-3/4.
Further, the adhesive is a quick adhesive, and the cross section of the blade coating is in a trapezoid shape with a narrow top and a wide bottom.
After adopting such design, the invention has at least the following advantages:
(1) the invention divides the root platform into at least 2 parts, namely a root platform fixing plate and a root platform sliding plate, the root platform fixing plate is fixed on the inner wall of a blade root, the root platform sliding plate is embedded into a guide rail prefabricated on the inner wall of the blade root, semi-surrounding structures are respectively formed, stress can be effectively released, the root platform sliding plate can slide along the circumferential direction, so that a switch of an overhaul channel is formed, and the problems of whitening and cracking at the joint of the root platform and the damage of a manhole cover connecting bolt are solved.
(2) The root platform structure prepared by the invention is suitable for different blade types, especially for blades with large-size blade roots, has more remarkable effect, and solves the hidden troubles that the operation of a unit is influenced because fragments generated by the damage of the blade root joints or unsmooth opening and closing of a manhole cover damage electrical equipment elements or overhauls time and the like.
(3) According to the invention, the root platform is divided into blocks, and a single root platform is semi-surrounded, so that the stress of the root platform can be effectively released, and the damage of the joint of the root platform and the inner wall of the blade root is avoided. The sliding of the root platform replaces the dismounting of bolts to open the manhole cover, the channel is more smooth and convenient, the damage of the bolts is avoided, and the opening and closing of the blade root passage are simple and efficient. And a proper gap is formed between each group of root platforms, so that the problem of pressure difference between the inner cavity and the outer side of the blade during operation can be solved, and an exhaust hole is not required to be additionally arranged on each root platform.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
FIG. 1 is a top view structural schematic view of an embodiment of a root platform structure of the present invention mounted to a blade root;
FIG. 2 is a schematic sectional view of A-A;
wherein, 1, a root platform fixing plate; 2. a root platform glide plate; 3. a blade; 4. an adhesive; 5. an adhesive tape; 6. guide rail, 7, hasp, 8, handle, 9, guide rail support.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The invention provides an embodiment of a root platform structure of a wind power blade, which comprises a guide rail 6 and a splicing root platform as shown in fig. 1 and fig. 2, wherein the splicing root platform comprises at least one root platform fixing plate 1 and at least one root platform sliding plate 2, wherein: the guide rail 6 is used for being installed on the inner wall of the wind power blade 3, the guide rail 6 is arc-shaped or annular, and a clamping groove is formed in the guide rail 6; the root platform sliding plate is embedded into the clamping groove, and the root platform sliding plate 2 can slide on the guide rail along the circumferential direction; the root platform sliding plate 2 can relatively slide on the guide rail 6 along the circumferential direction; root platform fixed plate 1 is used for fixed mounting on 3 inner walls of wind-powered electricity generation blades, and with root platform sliding plate cooperation overlap joint makeup root platform, slide through root platform sliding plate 2 realizes opening and shutting of root platform.
When the device is used, the root platform fixing plate is fixed on the inner wall of the blade root, the root platform sliding plate is embedded into the guide rail prefabricated on the inner wall of the blade root, semi-surrounding structures are respectively formed, stress can be effectively released, the root platform sliding plate can slide along the circumferential direction, so that a switch of an overhaul channel is formed, and the problems of white crack at the joint of the root platform and damage of a connecting bolt of a manhole cover are solved.
Generally, the root platform fixed plate can be one or more, can install in succession, also can interval cross installation, and root platform sliding plate also can be one or more, makes the sliding plate have less volume and weight during a plurality of root platform sliding plates, and convenient operation wants to agree with the blade inner wall with the characters after all root platform fixed plates, root platform sliding plate concatenation, generally for circular.
In one embodiment, the root platform glide plate 2 may be semi-circular (as shown in fig. 1), arcuate, crescent or elliptical. Correspondingly, when the root platform sliding plate is semicircular, the root platform fixing plate is also generally semicircular; when the root platform sliding plate is arched, the root platform sliding plate is narrower or wider than a semicircle, or is arched with radian, and the root platform fixing plate can be spliced and supplemented with the root platform sliding plate to form a circle; when the root platform sliding plate is crescent, the root platform fixing plate can be oval.
In an embodiment, root platform sliding plate 2 can include the sliding plate and establish the sliding block in sliding plate one end and draw-in groove cooperation screens, and the sliding block is connected with the sliding plate cooperation, and the root platform sliding plate 2's of constitution cross sectional shape can be T type, L type, U type or omega type, imbeds it in the guide rail draw-in groove, has both accomplished the installation of root platform sliding plate, also enables the sliding block of root platform sliding plate and slides in the guide rail draw-in groove, realizes opening and shutting of root platform.
In order to make the spliced root platform more stable, the lap joint overlapping part of the root platform fixing plate 1 and the root platform sliding plate 2 is at least 1 cm.
As an improvement, two ends of a splicing seam of the root platform fixing plate 1 and the root platform sliding plate 2 are provided with a chain lock catch 7 or a hasp; or the corresponding position of the root platform sliding plate 2 and the inner wall of the blade root is provided with a chain lock catch 7 or a hasp. The root platforms are prevented from being staggered in the non-overhaul period.
In order to make the installed guide rail more firm, a plurality of guide rail brackets 9 for supporting the guide rail 6 are further included, for being installed under the guide rail 6 and fixed on the inner wall of the blade 3.
As one kind, the root platform sliding plate 2 is provided with a handle 8, and the handle 8 is generally positioned in a radius from the circle center 1/4-3/4, so that the root platform sliding plate can be conveniently pushed manually.
Further, part of the guide rails 6 are located below the root platform fixing plate 1 in parallel, the distance is 1-30mm, and a gap is reserved at the lap joint of the root platform sliding plate 2.
Further, the guide rail 6 comprises a first guide rail 6 and a second guide rail 6 which are located on the same circumference, the first guide rail 6 is located below the root platform fixing plate 1 in parallel, and the distance is 1-30 mm.
Furthermore, a limiting block is arranged on the guide rail 6 and used for limiting the rotation range of the root platform sliding plate 2.
On the other hand, provide a wind-powered electricity generation blade, including foretell wind-powered electricity generation blade 3's root platform structure, root platform fixed plate 1, the equal fixed mounting of guide rail are on 3 inner walls of blade, and root platform slide block 2 passes through the sliding block and slides with the guide rail draw-in groove cooperation, realizes opening and shutting of root platform.
The invention discloses a root platform structure of a wind power blade and an installation method, which specifically comprise the following steps:
(1) a root platform structure. Three aspects are as follows: (a) the thickness of the root platform exceeds 3mm, and the root platform can be a reinforced glass fiber reinforced plastic laminated plate, and can be hand-pasted, bag-pressed or vacuum-filled; or a Balsa wood or foam sandwich glass fiber reinforced plastic laminated plate can be used, and the hand pasting, the bag pressing or the vacuum infusion can be carried out; it can also be a reinforced plastic plate or a metal plate. (b) The root platform is divided into at least two sections. (c) The shape of the single root platform can be semicircular, arc, crescent and oval, and after a group of root platforms are spliced into a full-circle baffle plate, at least 1cm of overlapping part is arranged at the middle joint.
(2) A guide rail. The guide rail can be a clamp groove which is prefabricated by glass fiber reinforced plastics or directly pasted on the inner wall of the blade root by hand, pressed by a bag or poured in vacuum, and can also be a T-shaped, L-shaped, U-shaped or omega-shaped guide rail made of plastics or metal. The guide rail is at least divided into two parts along the circumferential direction, and can be placed continuously or discontinuously.
(3) And (5) locking. The lock catch can be a lock chain lock catch or a hasp and is arranged at two ends of the splicing seam of each group of root platforms or at the corresponding position of each root platform and the inner wall of the blade root, so that the function of preventing the root platforms from being staggered mutually is achieved in the non-overhaul period.
(4) A handle. A handle is mounted on the boot platform secured using the guide rails, the handle being disposed within a radius of 1/4 to 3/4 from the center of the circle.
(5) A guide rail bracket. The guide rail bracket can be made of 2-8mm glass fiber reinforced plastics or plastics and is L-shaped.
(6) And installing a root platform fixing plate. Marking the installation position of the root platform on the inner wall of the blade root by using a marking pen, polishing and removing dust to ensure that the surface to be adhered is rough and clean, coating a 3-20mm adhesive on the surface to be adhered in a scraping way, wherein the adhesive can be a rigid or elastic adhesive, adhering the adhesive surface of a fixing plate of the root platform to the adhesive firmly, and ensuring that the root platform is parallel to the end surface of the blade root by using a tool. And (3) heating or curing at normal temperature, removing the tool after the adhesive is completely cured, and manually pasting 2-5 layers of L-shaped glass fiber reinforced plastics on one side or two sides of the root platform respectively to be used as the bonding belts of the root platform.
(7) And installing a first guide rail. And a first guide rail is arranged in parallel with the root platform fixing plate at a distance of 1-30 mm. Marking the installation position of the guide rail on the inner wall of the blade root by using a marking pen, polishing and removing dust to ensure that the surface to be adhered is rough and clean, coating adhesive of 3-20mm on the guide rail by blade, wherein the adhesive can be rigid or elastic adhesive, firmly attaching the first guide rail and the adhesive, and ensuring that the guide rail is parallel to the end face of the blade root by using a tool.
(8) And (5) installing a root platform sliding plate. The root platform shifting board is embedded into the first guide rail. The fit between the root platform and the guide rail is to be made slidable and the root platform is not to be detached from the guide rail.
(9) The rest guide rails are arranged on the same circumference of the first guide rail, and the guide rail bracket can be uniformly distributed on one side or both sides of the guide rail by using an adhesive. If there is a third root platform, the rails are arranged side by side with reference to (7) and the remaining root platforms are mounted with reference to (8).
The specific installation mode is as follows:
example 1
(1) And (4) pretreatment. And marking, polishing and dust cleaning the root platform placing area of the inner wall of the blade 3. And adjusting the blade posture until the area to be bonded of the root platform fixing plate 1 is closest to the ground.
(2) And (4) coating an adhesive by scraping. An adhesive 4 with the thickness of 5mm is coated on the area to be bonded of the root platform fixing plate 1 in a scraping mode, the adhesive 4 is a quick adhesive, the cross section of the adhesive is trapezoidal, and a rubber block with the thickness of 4mm is placed at the center of the adhesive 4 at intervals of 300mm in the circumferential direction to limit the thickness.
(3) The root platform fixing plate 1 is installed. And butting the bonding surface of the root platform fixing plate 1 with the adhesive 4, and placing support tools at two sides of the root platform to ensure that the root platform is parallel to the end surface of the blade root. Scraping the extruded adhesive 4, pasting 3 layers of biaxial cloth as a root platform adhesive tape 5 on the tip side of the root platform by hands after the adhesive 4 is primarily cured, and respectively overlapping the root platform and the inner wall of the blade by 100 mm.
(4) And (4) coating an adhesive by scraping. And (3) coating an adhesive 4 with the thickness of 5mm on a guide rail to-be-bonded area which is parallel to the root platform and has the thickness of 5mm in a scraping way, wherein the adhesive 4 is a quick adhesive, the cross section of the adhesive is trapezoidal, and a glue block with the thickness of 4mm is placed at the center of the adhesive 4 at intervals of 300mm in the circumferential direction for thickness limitation.
(5) The guide rail 6 is installed. And (3) mounting the first section of guide rail on the adhesive in the step (4), and positioning by using a bracket tool to ensure that the guide rail is firmly attached to the adhesive. The extruded adhesive 4 is scraped off until the adhesive 4 is initially cured.
(6) A handle 8 is mounted. Two handles are mounted on the root side of the root platform sliding plate 2 by screws.
(7) And (4) installing a root platform sliding plate 2. The root platform glide plate 2 is inserted from one side of the rail 6.
(8) Closing the guide 6. And (5) completely installing other guide rails according to the steps (4) and (5).
(9) And installing a chain lock catch. Two chain lock catches are mounted in an overlapping area between the root platform fixing plate 1 and the root platform sliding plate 2 through screws.
(10) And heating and curing the adhesive area.
Example 2
(1) And (4) pretreatment. And marking, polishing and dust cleaning the root platform placing area of the inner wall of the blade 3. And adjusting the blade posture until the area to be bonded of the root platform fixing plate 1 is closest to the ground.
(2) A handle 8 is mounted. Two embedded handles are respectively arranged on the blade root sides of the two root platforms by screws.
(3) And (4) coating an adhesive by scraping. The method is characterized in that an adhesive 4 with the thickness of 5mm is coated on the to-be-bonded area of two parallel guide rails 6 which are close to each other in a scraping mode, the adhesive 4 is a quick adhesive, the cross section of the adhesive is trapezoidal, and a rubber block with the thickness of 4mm is placed at the center of the adhesive 4 at intervals of 300mm in the circumferential direction to limit the thickness.
(4) The guide rail 6 is installed. And (3) installing two sections of guide rails 6 on the adhesive in the step (4) in parallel, and positioning by using a bracket tool to ensure that the guide rails are firmly attached to the adhesive. The extruded adhesive 4 is scraped off until the adhesive 4 is initially cured.
(5) And installing the root platform. The root platform fixing plate 1 and the root platform sliding plate 2 are respectively embedded from one side of the two sections of guide rails 6 and slide into the guide rails.
(6) Closing the guide 6. And (4) completely installing other sections of the two guide rails.
(7) According to the guide rail bracket 9. 4L-shaped glass fiber reinforced plastic guide rail brackets 9 with the thickness of 5mm are uniformly distributed on the blade root side of the guide rail where the root platform fixing plate 1 is positioned and the blade tip side of the guide rail where the root platform sliding plate 2 is positioned respectively by using adhesives.
(8) And installing a chain lock catch. Two lock chain lock catches are respectively arranged at two ends of an overlapping area between the root platform fixing plate 1 and the root platform sliding plate 2 and the inner wall of the blade 3 through screws and adhesives.
(9) And heating and curing the adhesive area.
The invention aims to solve the technical problems that in the prior art, the use of a blade maintenance channel is limited due to the defects that the connection part of a root platform and the inner wall of a blade is whitened and cracked, a manhole cover is complex to disassemble, bolts are easy to break, the position of the manhole cover is fixed and the like when the blade root platform operates.
The root platform structure prepared by the invention is suitable for different blade types, especially for blades with large-size blade roots, has more remarkable effect, and solves the hidden troubles that the operation of a unit is influenced because fragments generated by the damage of the blade root joints or unsmooth opening and closing of a manhole cover damage electrical equipment elements or overhauls time and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a root platform structure of wind-powered electricity generation blade, its characterized in that includes guide rail and concatenation root platform, concatenation root platform includes at least one root platform fixed plate and at least one root platform slide plate, wherein:
the guide rail is used for being installed on the inner wall of the wind power blade, the guide rail is arc-shaped or annular, and a clamping groove is formed in the guide rail;
the root platform sliding plate is embedded into the clamping groove and can slide on the guide rail along the circumferential direction;
the root platform fixing plate is fixedly installed on the inner wall of the wind power blade, the root platform is formed by matching and lapping the root platform sliding plates, and the root platform is opened and closed through sliding of the root platform sliding plates.
2. The root platform structure of a wind turbine blade of claim 1, wherein the root platform glide plate is semi-circular, arcuate, crescent or elliptical;
and/or the cross section of the root platform sliding plate is T-shaped, L-shaped, U-shaped or omega-shaped;
and/or the overlapping part of the root platform fixing plate and the root platform sliding plate is at least 1 cm.
3. The root platform structure of a wind turbine blade of claim 1 or 2, wherein the handle is provided on the root platform glide plate.
4. The root platform structure of the wind power blade according to any one of claims 1 to 3, wherein two ends of a splicing seam of the root platform fixing plate and the root platform sliding plate are provided with a chain lock catch or a hasp;
or the corresponding position of the root platform sliding plate and the inner wall of the blade root is provided with a chain lock catch or a hasp.
5. The root platform structure of the wind power blade according to any one of claims 1 to 4, wherein a part of the guide rails are positioned below the root platform fixing plate in parallel at a distance of 1-30mm, and a gap is left at the lap joint of the root platform sliding plate;
and/or, the guide rail is including being located the first guide rail and the second guide rail of same circumference, first guide rail parallel position is in root platform fixed plate below, interval 1 ~ 30 mm.
6. The root platform structure of the wind power blade according to any one of claims 1 to 5, further comprising a plurality of rail brackets for supporting the rails, for being installed under the rails and fixed on the inner wall of the blade;
and/or the spliced shape of the spliced root platform is circular;
and/or the guide rail and the root platform fixing plate are both arranged on the inner wall of the blade through adhesives;
and/or the blade also comprises an L-shaped adhesive tape which is respectively connected with the root platform fixing plate and the inner wall of the blade through two L-shaped side walls;
and/or the guide rail is provided with a limiting block for limiting the rotation range of the root platform sliding plate.
7. A wind power blade is characterized by comprising the root platform structure of the wind power blade as claimed in any one of claims 1 to 6, wherein the root platform fixing plate and the guide rail are both fixedly mounted on the inner wall of the blade, and the root platform sliding plate slides in cooperation with the guide rail clamping grooves through sliding blocks to realize the opening and closing of the root platform.
8. A method for installing a root platform structure of a wind power blade is characterized by comprising the following steps:
(1) pretreatment: marking, polishing and dust cleaning a root platform placing area of the inner wall of the blade, and adjusting the blade posture until a to-be-bonded area of a root platform fixing plate is closest to the ground;
(2) scraping and coating an adhesive: coating an adhesive with the thickness of 3-20mm on a region to be bonded of the root platform fixing plate in a scraping manner;
(3) installing a root platform fixing plate: butting the bonding surface of the root platform fixing plate with an adhesive, enabling the root platform fixing plate to be parallel to the end surface of the blade root, arranging L-shaped bonding belts on the root platform fixing plate and the inner side of the blade, and fixing the root platform fixing plate and the inner side of the blade;
(4) installing a guide rail: coating an adhesive with the thickness of 3-20mm on a guide rail to-be-bonded area which is parallel to the root platform fixing plate and has the distance of 3-6 mm; mounting the first section of guide rail on the adhesive in the guide rail, and firmly attaching the guide rail and the adhesive;
(5) installing a root platform sliding plate, embedding the root platform sliding plate into the clamping groove from one side of the guide rail, installing all the root platform sliding plates, and sealing the guide rail;
(6) installing a chain lock: two chain lock catches are mounted in an overlapping area between the root platform fixing plate and the root platform sliding plate through screws.
9. The method for installing the root platform structure of the wind power blade as claimed in claim 8, wherein two handles are further installed on the root platform sliding plate through screws on the side of the blade root, and the installation positions of the handles are located within a radius from a circle center 1/4-3/4.
10. The method for installing the root platform structure of the wind power blade according to claim 8 or 9, wherein the adhesive is a quick adhesive, and the cross-sectional shape of the blade coating is a trapezoid with a narrow top and a wide bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005977.8A CN111102140B (en) | 2020-01-03 | 2020-01-03 | Wind power blade, root platform structure of wind power blade and installation method of root platform structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005977.8A CN111102140B (en) | 2020-01-03 | 2020-01-03 | Wind power blade, root platform structure of wind power blade and installation method of root platform structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111102140A true CN111102140A (en) | 2020-05-05 |
| CN111102140B CN111102140B (en) | 2023-12-26 |
Family
ID=70425813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010005977.8A Active CN111102140B (en) | 2020-01-03 | 2020-01-03 | Wind power blade, root platform structure of wind power blade and installation method of root platform structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111102140B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943527A (en) * | 2021-04-09 | 2021-06-11 | 吉林重通成飞新材料股份公司 | Flexible blade root baffle structure of wind power blade |
| CN113878511A (en) * | 2021-09-26 | 2022-01-04 | 厦门双瑞风电科技有限公司 | Wind-powered electricity generation blade back shroud is with supporting and location installation frock |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435415A (en) * | 2007-11-15 | 2009-05-20 | 通用电气公司 | Methods and systems for assembling a tower |
| CN206309530U (en) * | 2016-12-27 | 2017-07-07 | 北京金风科创风电设备有限公司 | Tower workbench |
| CN107676221A (en) * | 2017-10-26 | 2018-02-09 | 中材科技风电叶片股份有限公司 | Wind electricity blade |
| CN108194281A (en) * | 2017-12-29 | 2018-06-22 | 龙源（北京）风电工程技术有限公司 | A kind of platform cover board arrangement and the tower frame for wind generating set and Wind turbines for including it |
| CN108757348A (en) * | 2018-08-01 | 2018-11-06 | 国电联合动力技术(保定)有限公司 | A kind of plug-type fan blade manhole cover tooling |
| CN109139383A (en) * | 2018-08-28 | 2019-01-04 | 国电联合动力技术(保定)有限公司 | A kind of wind turbine blade root platform assembling structure |
| CN208431110U (en) * | 2018-05-03 | 2019-01-25 | 国电联合动力技术有限公司 | A kind of fan blade manhole plate structure and fan blade, Wind turbines containing it |
| CN211287979U (en) * | 2020-01-03 | 2020-08-18 | 国电联合动力技术有限公司 | Root platform structure of wind power blade and wind power blade comprising same |
-
2020
- 2020-01-03 CN CN202010005977.8A patent/CN111102140B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435415A (en) * | 2007-11-15 | 2009-05-20 | 通用电气公司 | Methods and systems for assembling a tower |
| US20090126309A1 (en) * | 2007-11-15 | 2009-05-21 | Thomas Edward Lyness | Methods and systems for assembling a tower |
| CN206309530U (en) * | 2016-12-27 | 2017-07-07 | 北京金风科创风电设备有限公司 | Tower workbench |
| CN107676221A (en) * | 2017-10-26 | 2018-02-09 | 中材科技风电叶片股份有限公司 | Wind electricity blade |
| CN108194281A (en) * | 2017-12-29 | 2018-06-22 | 龙源（北京）风电工程技术有限公司 | A kind of platform cover board arrangement and the tower frame for wind generating set and Wind turbines for including it |
| CN208431110U (en) * | 2018-05-03 | 2019-01-25 | 国电联合动力技术有限公司 | A kind of fan blade manhole plate structure and fan blade, Wind turbines containing it |
| CN108757348A (en) * | 2018-08-01 | 2018-11-06 | 国电联合动力技术(保定)有限公司 | A kind of plug-type fan blade manhole cover tooling |
| CN109139383A (en) * | 2018-08-28 | 2019-01-04 | 国电联合动力技术(保定)有限公司 | A kind of wind turbine blade root platform assembling structure |
| CN211287979U (en) * | 2020-01-03 | 2020-08-18 | 国电联合动力技术有限公司 | Root platform structure of wind power blade and wind power blade comprising same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943527A (en) * | 2021-04-09 | 2021-06-11 | 吉林重通成飞新材料股份公司 | Flexible blade root baffle structure of wind power blade |
| CN113878511A (en) * | 2021-09-26 | 2022-01-04 | 厦门双瑞风电科技有限公司 | Wind-powered electricity generation blade back shroud is with supporting and location installation frock |
| CN113878511B (en) * | 2021-09-26 | 2023-06-30 | 厦门双瑞风电科技有限公司 | Wind-powered electricity generation blade back shroud is with supporting and location installation frock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111102140B (en) | 2023-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3513060B2 (en) | Wind turbine blade including protective cover | |
| CN111102140A (en) | Wind power blade, root platform structure of wind power blade and installation method of root platform structure | |
| EP2273102B1 (en) | Wind turbine blade repair kit and method | |
| US8221085B2 (en) | Wind blade joint bonding grid | |
| CN111108289B (en) | Injection method and apparatus for joining and repairing shear webs | |
| EP2103404A2 (en) | Apparatus and method for making a tubular composite barrel | |
| EP2728172A1 (en) | Rotor blade mold assembly and method for forming rotor blade | |
| EP2228198A1 (en) | A method of strengthening a wind turbine blade and the strengthened blade | |
| EP1782942B8 (en) | Fast line maintenance repair method for composite structures | |
| CN211287979U (en) | Root platform structure of wind power blade and wind power blade comprising same | |
| CN110542000A (en) | in-service pipeline prepreg repair construction method | |
| CN114127427A (en) | Longitudinal edge extension | |
| EP4046783B1 (en) | Acoustic panel repair with retention of acoustic properties | |
| KR20140001407A (en) | Patch used for repairing wind turbine blade, and method for repairing blade using the same | |
| CN115782276A (en) | Construction method of blade leading edge protection system | |
| EP3787883B1 (en) | Method for forming a rotor blade for a wind turbine | |
| CN116658355A (en) | Front edge protection cover of wind turbine blade and high-reliability installation method thereof | |
| CN209718680U (en) | A kind of low wind speed wind electricity blade reinforces precast body and Wind turbines | |
| CN102280230B (en) | Glass reinforced plastic insulating sleeve for wind driven generator and molding method of glass reinforced plastic insulating sleeve | |
| WO2022214426A1 (en) | A wind turbine blade with a fairing | |
| EP3673170B1 (en) | Lifting device and method of installing a bulkhead unit in a wind turbine blade | |
| CN109291468B (en) | Local reinforcing method for low-wind-speed wind power blade, reinforcing preform and wind turbine generator | |
| CN114474817B (en) | Device and method for connecting blade tip structures of horizontal-axis wind turbine generator system | |
| US20240100794A1 (en) | A wind turbine blade with a fairing | |
| CN109291468A (en) | Low wind speed wind electricity blade local strengthening method reinforces precast body and Wind turbines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |