Structure for preventing dust from entering inner cavity of blade

Abstract

The utility model belongs to the technical field of wind power blades, and particularly discloses a structure for preventing dust from entering a blade inner cavity, the structure comprises a dustproof plate and a connecting plate, the dustproof plate is used for covering a blade root port of a wind power blade, the connecting plate is provided with a blade root bolt hole corresponding to a connecting hole in the blade root end, and the connecting plate is provided with a connecting hole. And the connecting plate is connected with the end part of the blade root through a connecting piece. The dustproof plate is provided with an opening for a worker to pass through, and the opening is provided with a door body for opening and closing the opening. The lifting hole is hooked by a hook of a crane, then the structure is lifted to the blade root, the connecting plate is fixed to the end of the blade root through the connecting piece, the door body is closed, accumulation of dust in the blade can be effectively reduced, and the quality of the blade can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind turbine blades, and in particular relates to a structure for preventing dust from entering an inner cavity of a blade. Background Art

[0002] Wind turbine blades are one of the core components of wind turbines. Their production process generally consists of mold making, blade prefabrication, blade assembly, surface treatment, and post-processing. Post-processing is a crucial step in blade production. It improves blade strength, wind resistance, and protective capabilities, making them more durable. Wind turbine blade post-processing generally includes the following processes: 1. Polishing: During the production process, wind turbine blades may develop burrs or irregularities, which require polishing to achieve a smooth surface. 2. Filling: Filling is a crucial step in blade post-processing, primarily filling gaps. During filling, it is important to ensure that the filler is compatible with the chemical composition and physical properties of the blade. 3. Edge banding: Sealing the edges of wind turbine blades enhances wind resistance and protective capabilities. 4. Spray coating: Spray coating is an anti-corrosion treatment applied to the blade surface, typically using anti-corrosion materials such as epoxy or polyurethane paint. 5. Testing: After the previous processing steps, the quality and performance stability of the blades have been guaranteed. Testing is performed to ensure the safety and stability of wind turbine blades.

[0003] During the external grinding process of wind turbine blades, dust from the outside will enter the inner cavity of the blade. Usually, after grinding, the dust in the blade cavity is cleaned manually, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to provide a structure for preventing dust from entering the inner cavity of a blade, so as to solve the problem that the dust in the inner cavity of a blade after grinding is currently cleaned manually, which is time-consuming and labor-intensive.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a structure to prevent dust from entering the inner cavity of the blade, including a dustproof plate and a connecting plate, the dustproof plate is used to cover the root port of the wind turbine blade, and the connecting plate is used to connect with the dustproof plate and the root end of the blade; the dustproof plate is provided with an opening for passing staff, and the opening is provided with a door body for opening and closing the opening.

[0006] Furthermore, the connecting plate is provided with a blade root bolt hole corresponding to the connecting hole at the blade root end, and a connecting piece is used to connect the connecting plate and the blade root end.

[0007] Furthermore, a lifting hole is provided on the top of the connecting plate.

[0008] Furthermore, the dustproof plate includes a plurality of dustproof sub-plates and a plurality of frames, the plurality of frames form a support frame, and the dustproof sub-plates are fixed in the gaps between the frames.

[0009] Furthermore, the plurality of frames include two groups of main frames and multiple component frames, the two groups of main frames are arranged side by side and at intervals, and the multiple groups of component frames are respectively fixed on the opposite sides of the two groups of main frames; the opening is set between the two groups of main frames.

[0010] Furthermore, the outer periphery of the dustproof partition plate forms an outer arc shape.

[0011] Furthermore, the inner side of the connecting plate is configured as an inner arc shape matching the outer arc shape; and the outer ends of the main frame and the sub-frame are fixed to the connecting plate.

[0012] The beneficial effect of this technical solution is: hook the crane's hook to the lifting hole, then lift the structure to the blade root, use the connecting piece to fix the connecting plate to the end of the blade root, and close the door body, which can effectively reduce the accumulation of dust inside the blade and effectively improve the quality of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view schematic diagram of a structure for preventing dust from entering the inner cavity of a blade according to the present invention;

[0014] Figure 2 This is a schematic back view of a structure for preventing dust from entering the inner cavity of a blade according to the present invention. DETAILED DESCRIPTION

[0015] The following is further described in detail through specific implementation methods:

[0016] The reference numerals in the drawings of the specification include: connecting plate 1, lifting hole 2, blade root bolt hole 3, opening 4, door body 5, main frame 6, sub-frame 7, dustproof sub-plate 8.

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] The embodiment is basically as shown in the attached Figure 1-2Shown is a structure for preventing dust from entering the inner cavity of a blade, comprising a dustproof plate and a connecting plate 1. The dustproof plate is used to cover the root port of a wind turbine blade, and the connecting plate 1 is used to connect the dustproof plate and the root end of the blade. Specifically, the connecting plate 1 is provided with a root bolt hole 3 corresponding to the connecting hole at the root end of the blade. The connecting plate 1 is connected to the root end of the blade by a connecting piece, and the connecting piece is a bolt. A lifting hole 2 is provided on the top of the connecting plate 1 to facilitate the crane to lift the structure. An opening 4 for passing staff is provided on the dustproof plate, and a door body 5 for opening and closing the opening 4 is provided at the opening 4. Specifically, one side of the door body 5 is hinged to one side of the opening 4, and a handle can be provided on the door body 5 to facilitate opening and closing the door body 5.

[0019] The dust shield comprises several dust shield sub-panels 8 and several frames. The frames form a support frame, constructed from 80*80*4 square tubes. The dust shield sub-panels 8 are welded and fixed in the gaps between the frames. The frames comprise two sets of main frames 6 and a multi-component frame 7. The two sets of main frames 6 are arranged side by side and spaced apart. The multi-component frames 7 are fixed to opposite sides of the two sets of main frames 6. An opening 4 is provided between the two sets of main frames 6. The outer perimeter of the dust shield sub-panels 8 is formed into an outer arc shape. The inner side of the connecting plate 1 is formed into an inner arc shape that matches the outer arc shape. The outer ends of the main frames 6 and sub-frames 7 are welded and fixed to the connecting plate 1.

[0020] Hook the crane hook to the lifting hole 2, then lift the structure to the blade root, use the connector to fix the connecting plate 1 to the end of the blade root, and close the door 5. This can effectively reduce the accumulation of dust inside the blade and effectively improve the quality of the blade.

[0021] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0022] The above is only an embodiment of the present utility model. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the inspiration given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the scope of protection of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A structure for preventing dust from entering the inner cavity of a blade, characterized by: The invention comprises a dustproof plate and a connecting plate (1), wherein the dustproof plate is used to cover the blade root port of a wind turbine blade, and the connecting plate (1) is used to connect the dustproof plate and the blade root end; the dustproof plate is provided with an opening (4) for passing a worker, and the opening (4) is provided with a door body (5) for opening and closing the opening (4).

2. The structure for preventing dust from entering the inner cavity of a blade according to claim 1, characterized in that: The connecting plate (1) is provided with a blade root bolt hole (3) corresponding to the connecting hole at the blade root end, and a connecting piece is used to connect the connecting plate (1) and the blade root end.

3. The structure for preventing dust from entering the inner cavity of a blade according to claim 1, characterized in that: A lifting hole (2) is provided on the top of the connecting plate (1).

4. The structure for preventing dust from entering the inner cavity of a blade according to claim 1, characterized in that: The dustproof plate comprises a plurality of dustproof sub-plates (8) and a plurality of frames, wherein the plurality of frames form a support frame, and the dustproof sub-plates (8) are fixed in the gaps between the frames.

5. The structure for preventing dust from entering the inner cavity of a blade according to claim 4, characterized in that: The plurality of frames include two groups of main frames (6) and multiple component frames (7). The two groups of main frames (6) are arranged side by side and at intervals, and the multiple groups of component frames (7) are respectively fixed on opposite sides of the two groups of main frames (6). The opening (4) is arranged between the two groups of main frames (6).

6. The structure for preventing dust from entering the inner cavity of a blade according to claim 5, characterized in that: The outer periphery of the dustproof partition plate (8) forms an outer arc shape.

7. The structure for preventing dust from entering the inner cavity of a blade according to claim 6, characterized in that: The inner side of the connecting plate (1) is configured as an inner arc shape matching the outer arc shape; the outer ends of the main frame (6) and the sub-frame (7) are fixed to the connecting plate (1).

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