Modular composite windmill structure

Abstract

The present application relates to a kind of modular composite wind force rotary drum structure, including outer cylinder;Upper top cover, by adhesive installation in the top of outer cylinder, for waterproof;Ring muscle, adhesive setting in outer cylinder;Support structure, including fixed plate, the outer end of fixed plate integrally formed with two second skins, two second skins have taper gap, and taper gap is provided with taper second core, for increasing adhesive area and reducing weight;Metal disc group, fixed on support structure, and by drive mechanism through metal disc group drives outer cylinder rotation;Lower metal ring, adhesive setting in the bottom of outer cylinder, for maintaining the dynamic balance when outer cylinder rotates.The present application decomposes rotary drum structure into six independent modules, by separately designing and processing each module, then using adhesive assembly process to realize overall forming preparation, flexible and convenient, precision controllable, can significantly shorten preparation period, greatly reduce production cost, with industrialization promotion and application advantage.

Description

Technical Field

[0001] This invention relates to the field of marine wind power energy conservation technology, and in particular to a modular composite material wind turbine structure. Background Technology

[0002] Composite material wind turbine structures, with their significant advantage of lightweight construction, can deliver more substantial wind-powered propulsion and achieve more considerable energy-saving and emission-reduction benefits, making them highly sought after in the marine energy-saving market in recent years. However, at the same time, the design and manufacturing technology of composite material wind turbine structures is still in its infancy both domestically and internationally. Given the harsh operating conditions at sea, in addition to focusing on design issues such as structural strength and deformation, a key focus should be placed on how to achieve large-scale production and manufacturing.

[0003] Existing wind turbine components are complex, and composite material turbine structures are difficult to design, have high manufacturing costs, and long production cycles.

[0004] Therefore, we propose a modular composite material wind turbine structure. Summary of the Invention

[0005] To address the shortcomings of existing production technologies, the applicant provides a modular composite material wind turbine structure. Through modular design, the overall structure is decoupled into several key components and processed individually. Adhesive assembly is used to achieve mass production of the composite material wind turbine structure. This significantly reduces the overall manufacturing cost and cycle while meeting structural strength and deformation requirements, which is conducive to the industrialization of composite material wind turbines.

[0006] The technical solution adopted in this invention is as follows:

[0007] A modular composite material wind turbine structure, comprising:

[0008] outer cylinder;

[0009] The top cover is glued to the top of the outer cylinder for waterproofing;

[0010] The ring ribs are glued inside the outer cylinder to support it.

[0011] The supporting structure includes a fixing plate. The outer end of the fixing plate is integrally formed with two second skins. The two second skins have conical gaps, and a conical second core is provided in the conical gaps to increase the adhesive area and reduce the weight.

[0012] The metal disc assembly is fixed to the support structure, and the outer cylinder is rotated by the drive mechanism through the metal disc assembly;

[0013] The lower metal ring is glued to the bottom of the outer cylinder to maintain dynamic balance when the outer cylinder rotates.

[0014] Its further features are:

[0015] The top cover includes a first annular connecting plate and a second annular connecting plate, which are respectively glued to both sides of the outer cylinder. The top cover is made by vacuum injection molding process.

[0016] The lower metal ring is a thin-walled U-shaped hollow structure, including a third annular connecting plate and a fourth annular connecting plate, which are glued to both sides of the outer cylinder.

[0017] Screws are also provided between the lower metal ring and the outer cylinder to strengthen the connection.

[0018] The ring reinforcement is a cap-shaped foam sandwich structure, with five sets of ring reinforcements arranged at intervals inside the outer cylinder.

[0019] The ring reinforcement includes a first skin and a first core. The outer ring of the first skin is provided with a trapezoidal groove, and the first core is disposed in the trapezoidal groove. The first core is PVC rigid foam.

[0020] The supporting structure is a foam sandwich structure, and the second core is rigid PVC foam.

[0021] The metal disc assembly includes two reinforcing metal discs and a metal flange. The two reinforcing metal discs are connected to the support structure by bolts, and the metal flange is connected to the reinforcing metal discs by bolts.

[0022] The top cover is bonded to the outer cylinder via a top cover adhesive layer, the ring rib is bonded to the outer cylinder via a ring rib adhesive layer, the support structure is bonded to the outer cylinder via a support structure adhesive layer, and the lower metal ring is bonded to the outer cylinder via a lower metal ring adhesive layer.

[0023] The adhesive layers for the top cover, ring reinforcement, support structure, and lower metal ring are all reinforced at corners using a hand lay-up process to further enhance the connection strength between each component and the outer cylinder.

[0024] The beneficial effects of this invention are as follows:

[0025] This invention features a compact and rational structure that is easy to operate. Through modular design, the overall structure is decoupled into several key components and processed individually. Adhesive assembly is used to achieve mass production of composite material wind turbine structures, thereby significantly reducing the overall manufacturing cost and cycle while meeting structural strength and deformation requirements, which is conducive to the industrialization of composite material wind turbines.

[0026] In addition, the present invention also has the following advantages:

[0027] (1) The ring reinforcement and support structure design in the form of foam sandwich layer significantly improves the local and overall bending stiffness, torsional stiffness and structural strength of the rotary cylinder structure with a small structural weight, and has the advantages of both lightweight structure and mechanical performance.

[0028] (2) The lower metal ring adopts a thin-walled U-shaped hollow design and is glued on both sides. The lower metal ring and the outer cylinder are also reinforced by screws, which improves the connection strength with the outer cylinder.

[0029] (3) The adhesive bonding process is used to assemble the components together with the outer cylinder, which is flexible, convenient, and has controllable precision, giving it industrial advantages.

[0030] (4) The gap between the two second skins of the support structure is conical, and a conical second core is provided in the conical gap. The conical second core can increase the adhesive area and make the adhesive more secure. The second core is made of rigid PVC foam, which can also play a role in vibration reduction. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention.

[0032] Figure 2 for Figure 1 Top view.

[0033] Figure 3 for Figure 2 A schematic diagram of the AA cross-section.

[0034] Figure 4 for Figure 3 A magnified view of the bonding area of ​​the top cover.

[0035] Figure 5 for Figure 3 Enlarged view of a portion of the circumferential reinforcement bonding area.

[0036] Figure 6 for Figure 3 Enlarged view of the bonding area of ​​the supporting structure.

[0037] Figure 7 for Figure 3 A magnified view of the bonding area of ​​the lower steel ring.

[0038] Figure 8 This is a schematic diagram of the support structure and metal disk assembly of the present invention.

[0039] The components are as follows: 1. Outer cylinder; 2. Top cover; 201. First annular connecting plate; 202. Second annular connecting plate; 3. Ring rib; 301. First skin; 302. First sandwich; 4. Support structure; 401. Fixing plate; 402. Second skin; 403. Second sandwich; 5. Metal disc assembly; 501. Reinforcing metal disc; 502. Metal flange; 6. Lower metal ring; 601. Third annular connecting plate; 602. Third annular connecting plate; 7. Top cover adhesive layer; 8. Ring rib adhesive layer; 9. Support structure adhesive layer; 10. Lower metal ring adhesive layer. Detailed Implementation

[0040] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0041] like Figures 1-3 As shown, a modular composite material wind turbine structure includes an outer cylinder 1, an upper top cover 2, a ring rib 3, a support structure 4, a metal disc assembly 5, and a lower metal ring 6. The upper top cover 2, the ring rib 3, the support structure 4, the metal disc assembly 5, and the lower metal ring 6 are all connected to the outer cylinder 1 by adhesive bonding.

[0042] The outer cylinder 1 is made of composite material through winding or vacuum injection molding processes.

[0043] like Figure 7 As shown, the top cover 2 is made of carbon fiber or fiberglass reinforced resin matrix composite material. The top cover 2 is used for waterproofing and is manufactured using a vacuum injection molding process. The top cover 2 includes a first annular connecting plate 201 and a second annular connecting plate 202, which are respectively disposed on both sides of the outer cylinder 1. Adhesive is injected from both sides of the outer cylinder 1 to achieve double-sided adhesion. The top cover 2 is glued to the top of the outer cylinder 1, thus achieving a waterproof function.

[0044] like Figure 5 As shown, the ring rib 3 is a cap-shaped foam sandwich structure. There are five sets of ring ribs 3, which are spaced apart inside the outer cylinder 1. The ring rib 3 includes a first skin 301 and a first core 302. The outer ring of the first skin 301 is provided with a trapezoidal groove, and the first core 302 is disposed in the trapezoidal groove. The first skin 301 is made of carbon fiber or fiberglass reinforced resin matrix composite material, and the first core 302 is made of PVC rigid foam, which is formed by vacuum injection molding process.

[0045] like Figure 6 , Figure 8As shown, the support structure 4 is a foam sandwich structure, including a fixing plate 401. Two second skins 402 are integrally formed on the outer end of the fixing plate 401. Both second skins 402 are inclined, and the gap between them is conical. A conical second core 403 is disposed within this conical gap. The conical second core 403 increases the adhesive area, making the adhesion stronger. The second skins 402 are made of carbon fiber or fiberglass reinforced resin-based composite material, and the second core 403 is made of rigid PVC foam, formed using a vacuum injection molding process.

[0046] For the ring reinforcement 3 and the supporting structure 4, an innovative foam sandwich structure is adopted. This significantly improves the local and overall bending and torsional stiffness and strength of the structure with a smaller structural weight, while ensuring the stability of the rotating drum during high-speed rotation. It also improves the assembly accuracy of key parts and enables the rotating drum to operate efficiently. The openings in the supporting structure 4 facilitate hoisting and installation while reducing the structural weight.

[0047] like Figure 8 As shown, the metal disc assembly 5 includes two reinforcing metal discs 501 and one metal flange 502. Both are precision machined to ensure the flatness and roughness of the disc surface. The two reinforcing metal discs 501 are connected to the fixing plate 401 of the support structure 4 by bolts. The metal flange 502 is connected to the reinforcing metal discs 501 by bolts. The metal flange 502 is driven to rotate by the drive shaft of the drive motor, thereby realizing the rotation of the outer cylinder 1.

[0048] like Figure 4 As shown, the lower metal ring 6 is a thin-walled U-shaped hollow structure. The lower metal ring 6 includes a third annular connecting plate 601 and a fourth annular connecting plate 602. The third annular connecting plate 601 and the fourth annular connecting plate 602 are embedded into both sides of the lower end of the outer cylinder 1, and a strong connection is achieved between them using double-sided adhesive. The lower metal ring 6 interacts with the limiting wheel to maintain the dynamic balance of the outer cylinder 1 during operation. The lower metal ring 6 and the outer cylinder 1 are reinforced with screws.

[0049] The lower metal ring 6 can be bonded on both sides to ensure the connection strength and reliability between it and the outer cylinder 1; the steel ring structure of the lower metal ring 6 can solve the reliability problem of long-term impact and friction with the limiting device, thus helping to maintain the dynamic balance state during the rotary drum operation.

[0050] The top cover 2 and the outer cylinder 1 are bonded together by the top cover adhesive layer 7, the ring rib 3 and the outer cylinder 1 are bonded together by the ring rib adhesive layer 8, the support structure 4 and the outer cylinder 1 are bonded together by the support structure adhesive layer 9, and the lower metal ring 6 and the outer cylinder 1 are bonded together by the lower metal ring adhesive layer 10.

[0051] At the corners of the top cover adhesive layer 7, the ring rib adhesive layer 8, the support structure adhesive layer 9, and the lower metal ring adhesive layer 10, a hand lay-up reinforcement process is used to further strengthen the connection strength between each component and the outer cylinder 1, thereby realizing the modular design, processing, and assembly of the composite material swivel cylinder.

[0052] By decomposing the structural system into several independent modules and leveraging the advantages of division of labor and cooperation in the upstream and downstream industries, parallel production and processing of each component can be achieved. The entire cylinder can be assembled and molded through glue bonding, thereby meeting multiple constraints such as structural lightweighting, strength and deformation, assembly accuracy, production cycle and manufacturing cost, which is conducive to commercial promotion and large-scale production and application in the market.

[0053] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A modular composite windmill structure, characterized by, The utility model relates to a kind of wind turbine, including: Outer tube (1); Upper top cover (2), is installed in the top of outer tube (1) by adhesive, for waterproof; Ring rib (3), adhesive is arranged in outer tube (1), for supporting outer tube (1); Support structure (4), including fixed plate (401), the outer end of fixed plate (401) is integrally formed with two second skins (402), two second skins (402) have taper gap, and taper second core (403) is arranged in taper gap, for increasing adhesive area and reducing weight;The outer end of second skin (402) and the outer end of second core (403) are bonded with the inner wall of outer tube (1); Metal disc group (5), is fixed on support structure (4), and outer tube (1) is driven by metal disc group (5) by driving mechanism rotation;Metal disc group (5) includes two reinforced metal discs (501) and a metal flange plate (502), two reinforced metal discs (501) are connected with support structure (4) by bolt, and metal flange plate (502) is connected with reinforced metal disc (501) by bolt; Lower metal ring (6), adhesive is arranged in the bottom of outer tube (1), for maintaining the dynamic balance when outer tube (1) rotates.

2. A modular composite windmill structure as claimed in claim 1, wherein: The upper top cover (2) includes a first annular connecting plate (201) and a second annular connecting plate (202), the first annular connecting plate (201) and the second annular connecting plate (202) are respectively glued on both sides of the outer tube (1), and the upper top cover (2) is made by a vacuum infusion molding process.

3. A modular composite windmill structure as claimed in claim 1, wherein: The lower metal ring (6) is a thin-walled U-shaped hollow structure, including a third annular connecting plate (601) and a fourth annular connecting plate (602), the third annular connecting plate (601) and the fourth annular connecting plate (602) are glued on both sides of the outer tube (1).

4. A modular composite windmill structure as claimed in claim 3 wherein: Screws are further provided between the lower metal ring (6) and the outer tube (1) to strengthen the connection.

5. A modular composite windmill structure as claimed in claim 1, wherein: The ring rib (3) is a hat-shaped foam sandwich structure, and five sets of ring ribs (3) are arranged in the outer tube (1) at intervals.

6. A modular composite windmill structure as claimed in claim 5 wherein: The ring rib (3) includes a first skin (301) and a first core (302), the first skin (301) has a trapezoidal groove on the outer circle, the first core (302) is arranged in the trapezoidal groove, and the first core (302) is a PVC hard foam.

7. A modular composite windmill structure as claimed in claim 1, wherein: The support structure (4) is a foam sandwich structure, and the second core (403) is a PVC hard foam.

8. A modular composite windmill structure as claimed in claim 1, wherein: The upper top cover (2) is glued to the outer tube (1) by a top cover adhesive structure glue layer (7), the ring rib (3) is glued to the outer tube (1) by a ring rib adhesive glue layer (8), the support structure (4) is glued to the outer tube (1) by a support structure adhesive glue layer (9), and the lower metal ring (6) is glued to the outer tube (1) by a lower metal ring adhesive glue layer (10).

9. A modular composite windmill structure as claimed in claim 8, wherein: The corner portions of the top cover adhesive structure glue layer (7), the ring rib adhesive glue layer (8), the support structure adhesive glue layer (9) and the lower metal ring adhesive glue layer (10) are further strengthened by a hand lay-up reinforcement process to strengthen the connection strength between each component and the outer tube (1).

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