Steel-concrete structure fan tower tube connecting piece

Abstract

The utility model relates to a steel-concrete structure fan tower tube connecting piece which comprises a concrete tower tube and a steel structure tower tube arranged above the concrete tower tube, a first connecting block is connected to the top of the concrete tower tube, a first groove is formed in the inner side of the first connecting block, an inner flange plate is arranged in the first groove, and a plurality of anchoring holes are formed in the inner flange plate at equal intervals. Anchoring ribs are connected in the anchoring holes; the bottom of the steel structure tower drum is connected with a second connecting block, a second groove is formed in the inner side of the second connecting block, the upper portion of the inner flange plate can be just clamped in the second groove, inserting holes corresponding to the anchoring ribs are formed in the top of the second groove in a penetrating mode, and the anchoring ribs can be just inserted into the inserting holes in a penetrating mode to be clamped. The concrete tower drum and the steel structure tower drum are preliminarily connected through mutual clamping of the anchoring ribs and the inserting holes and mutual clamping of the inner flange plates and the second grooves, the multiple anchoring ribs arranged at equal intervals can ensure that bending moments of the two tower drums are evenly transmitted, and the situation that the connection stability is affected due to overlarge local stress deformation is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel-concrete structure wind turbine tower connection, specifically relating to a steel-concrete structure wind turbine tower connector. Background Technology

[0002] Steel-concrete composite wind turbine towers combine the advantages of both steel and concrete structures. Steel structures typically offer high strength and light weight, facilitating transportation and installation; concrete structures provide better durability, stability, and corrosion resistance. This combined structure enhances the overall performance of the tower, adapting to diverse environmental conditions and wind power generation needs. However, due to the different material properties of steel and concrete, the connection between the two becomes a critical issue, requiring the design of specialized connectors to ensure the reliability and stability of the connection.

[0003] In view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a steel-concrete structure wind turbine tower connector to achieve a stable connection between the steel structure and the concrete structure of the wind turbine tower. Utility Model Content

[0004] This utility model provides a connecting component for a steel-concrete structure wind turbine tower.

[0005] The specific technical solution of this utility model is as follows: a steel-concrete structure wind turbine tower connector, including a concrete tower and a steel structure tower mounted on top of it. The top of the concrete tower is connected to a first connecting block, the inner side of which is provided with a first groove, and an inner flange is provided in the first groove. The inner flange is provided with a plurality of anchoring holes at equal intervals, and anchoring bars are connected in the anchoring holes. The bottom of the steel structure tower is connected to a second connecting block, the inner side of which is provided with a second groove. The upper part of the inner flange can be just locked in the second groove. The top of the second groove is provided with a through hole corresponding to the anchoring bars, and the plurality of anchoring bars can be just inserted through and locked in the through hole.

[0006] Furthermore, preferably, a first flange is connected to the outer periphery of the first connecting block, and a second flange is connected to the outer periphery of the second connecting block. Both the first and second flanges are provided with a plurality of threaded holes, and threaded rods are threaded into the threaded holes. The first and second flanges are connected to each other by tightening the threaded rods.

[0007] Furthermore, preferably, the thickness of both the first flange and the second flange is 20 mm.

[0008] Furthermore, preferably, a plurality of gaskets are provided between the first flange and the second flange, and the gaskets are disposed between every two adjacent threaded holes.

[0009] Furthermore, preferably, the gasket is a highly elastic composite material.

[0010] The beneficial effects of this utility model are as follows: Firstly, the initial connection between the concrete tower and the steel structure tower is achieved through the interlocking of the anchor bars and the insertion holes, and the inner flange and the second groove. The equidistantly arranged anchor bars ensure uniform transmission of bending moment between the two towers, preventing excessive local stress and deformation that could affect the stability of the connection. Secondly, the connection between the first and second flanges via high-strength threaded rods further enhances the stability and reliability of the connection between the concrete tower and the steel structure tower. The entire connection structure is simple and novel, easy and convenient to operate, and can quickly complete the connection between the concrete tower and the steel structure tower, ensuring the overall stability and safety of the tower under wind loads. Furthermore, it facilitates disassembly, inspection, and maintenance, and has high practical value. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a steel-concrete structure wind turbine tower connecting component according to this utility model;

[0012] Figure 2 This is an exploded view of a steel-concrete structure wind turbine tower connecting component according to this utility model;

[0013] Figure 3 This is a partial sectional view of the components of this utility model after disassembly;

[0014] Figure 4 This is a partial cross-sectional view of the assembled components of this utility model. Figure 1 ;

[0015] Figure 5 This is a partial cross-sectional view of the assembled components of this utility model. Figure 2 ;

[0016] In the diagram: 1-Concrete tower, 11-First connecting block, 12-First groove, 13-Inner flange, 14-Anchor hole, 15-Anchor bar; 2-Steel structure tower, 21-Second connecting block, 22-Second groove, 23-Insertion hole; 31-First flange, 32-Second flange, 33-Threaded hole, 34-Threaded rod, 35-Gasket. Detailed Implementation

[0017] To make the technical problems and solutions solved by this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] As attached Figures 1 to 4 As shown, this utility model provides a steel-concrete structure wind turbine tower connector, including a concrete tower 1 and a steel structure tower 2 disposed above it. The top of the concrete tower 1 is connected to a first connecting block 11, and the inner side of the first connecting block 11 is provided with a first groove 12. The first groove 12 is provided with an inner flange 13, and the inner flange 13 is provided with a plurality of anchor holes 14 at equal intervals. Anchor bars 15 are connected in the anchor holes 14. The bottom of the steel structure tower 2 is connected to a second connecting block 21, and the inner side of the second connecting block 21 is provided with a second groove 22. The upper part of the inner flange 13 can be just locked in the second groove 22. The top of the second groove 22 is provided with a through hole 23 corresponding to the anchor bars 15, and the plurality of anchor bars 15 can be just inserted into the through hole 23 and locked.

[0021] Preferably, the first connecting block 11 is connected to a first flange 31 on its outer periphery, and the second connecting block 21 is connected to a second flange 32 on its outer periphery. Both the first flange 31 and the second flange 32 have several threaded holes 33, and threaded rods 34 are threaded into the threaded holes 33. By tightening the threaded rods 34, the first flange 31 and the second flange 32 are connected to each other, thereby further strengthening the connection between the concrete tower 1 and the steel structure tower 2. The threaded rod connection also facilitates installation and maintenance.

[0022] Furthermore, both the first flange 31 and the second flange 32 have a thickness of 20mm, which is relatively thick and can enhance wear resistance.

[0023] Furthermore, a plurality of gaskets 35 are provided between the first flange 31 and the second flange 32. The gaskets 35 are provided between every two adjacent threaded rods 34, and the gaskets 35 are made of highly elastic composite material with high elastic modulus and good fatigue resistance. They can effectively disperse stress without affecting the connection strength and prevent cracks from appearing at the connection due to long-term stress.

[0024] Specific applications of this utility model:

[0025] Before the concrete tower 1 is fully poured, the first connecting block 11 and the inner flange 13 are embedded in the concrete. After the concrete has set, the first connecting block 11 and the inner flange 13 are fitted and connected to the top of the concrete tower 1. The first connecting block 11 and the inner flange 13 are made of steel. Then, high-strength anchor bars 15 are inserted into several anchor holes 14 on the inner flange 13. The connection between the anchor bars 15 and the anchor holes 14 can be made by concrete pouring or welding. Then, the first flange 31 is installed on the outer periphery of the first connecting block 11. The first flange 31 is made of steel and can be welded to the outer periphery of the first connecting block 11. This completes the installation of all connecting components on the concrete tower 1.

[0026] The second connecting block 21 is integrally formed from steel and the steel structure tower 2. The second flange 32 is also made of steel and is welded to the outer periphery of the second connecting block 21. This completes the installation of all connecting components on the steel structure tower 2.

[0027] When connecting the steel structure tower 2 to the concrete tower 1, adjust the steel structure tower 2 so that the insertion hole 23 is aligned with the anchor bar 15, and align the threaded hole 33 of the second flange 32 with the threaded hole 33 of the first flange 31. Then, slowly lower the steel structure tower 2 so that all the anchor bars 15 are fully inserted into the insertion hole 23, and the upper part of the inner flange 13 is just inserted into the second groove 21. This completes the initial connection between the concrete tower 1 and the steel structure tower 2.

[0028] Furthermore, high-strength threaded rods 34 are screwed into the evenly distributed threaded holes 33 and tightened, so that the threaded rods 34 and threaded holes 33 interlock, connecting the first flange 31 and the second flange 32, thereby further strengthening the connection between the concrete tower 1 and the steel structure tower 2. Thus, the connection between the anchoring ribs 15 and the insertion holes 23, and the threaded rods 34 and threaded holes 33, facilitates subsequent disassembly and maintenance.

[0029] Furthermore, a composite material gasket 35 with high elastic modulus and good fatigue resistance is provided at the connection between the first flange 31 and the second flange 32. This gasket 35 can effectively disperse stress without affecting the connection strength, preventing cracks from appearing at the connection due to long-term stress. At the same time, with the cooperation of the anchor bar 15 and the socket 23, it can ensure the uniform transmission of bending moment and avoid excessive local stress.

[0030] The present invention has been described in detail above through specific and preferred embodiments. However, those skilled in the art should understand that the present invention is not limited to the embodiments described above. Any modifications or equivalent substitutions made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steel-concrete structure fan tower section connector, comprising a concrete tower section (1) and a steel structure tower section (2) arranged above it, characterized in that: The concrete tower drum (1) top is connected with first connecting block (11), first connecting block (11) inside is equipped with first recess (12), first recess (12) is equipped with inner flange plate (13) inside, inner flange plate (13) is equipped with several anchor holes (14) equidistantly, anchor hole (14) is connected with anchor bar (15) inside;The steel structure tower drum (2) bottom is connected with second connecting block (21), second connecting block (21) inside is equipped with second recess (22), the upper portion of inner flange plate (13) can just be engaged in second recess (22), the top of second recess (22) is provided with the insertion hole (23) corresponding with anchor bar (15), several anchor bars (15) just can be inserted into the insertion hole (23) and engaged.

2. A reinforced concrete structure wind turbine tower connector according to claim 1, characterized in that: The first connecting block (11) is connected with the first flange plate (31) outside, the second connecting block (21) is connected with the second flange plate (32) outside, the first flange plate (31) and the second flange plate (32) are provided with a plurality of threaded holes (33), the threaded holes (33) are screwed with threaded rods (34), the first flange plate (31) and the second flange plate (32) are connected by screwing the threaded rods (34).

3. A reinforced concrete structure wind turbine tower connector according to claim 2, wherein: The thickness of the first flange plate (31) and the second flange plate (32) is 20mm.

4. A reinforced concrete wind turbine tower connector according to claim 2 or 3, c h a r a c t e r i z e d in that: The first flange plate (31) and the second flange plate (32) are provided with a plurality of gaskets (35), the gaskets (35) are arranged between every two adjacent threaded holes (34).

5. A reinforced concrete wind turbine tower connector according to claim 4, wherein: The gasket (35) is made of high elastic composite material.

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