Offshore wind power composite cylinder type foundation

Abstract

The utility model provides a kind of offshore wind power composite cylinder type foundation, including support seat, the top of support seat is rotatably connected with bearing platform, and flange is fixedly connected on bearing platform, and limit structure is equipped on support seat, and limit structure includes moving ring and pawl, and moving ring is slidably connected on support seat, and multiple pawls are integrally formed on moving ring, and multiple sections are equipped on the outside of moving ring, and multiple clamping grooves are equipped on bearing platform, and pawl is engaged with adjacent clamping groove, and multiple slide bars are fixedly connected on the top side of moving ring, and guide shaft is fixedly connected on slide bar, and swivel ring is rotatably connected on support seat, and multiple guide slots are equipped on swivel ring, and guide shaft extends to the inside of adjacent guide slot.The utility model can flexibly adjust tower cylinder orientation after foundation installation, so as to ensure the efficiency of wind power generation.

Description

Technical Field

[0001] This utility model belongs to the technical field of offshore wind power foundation engineering, specifically relating to an offshore wind power composite cylindrical foundation. Background Technology

[0002] As the "offshore load-bearing core" of wind turbine generators, the composite cylindrical foundation for offshore wind power is responsible for load transfer. It needs to stably bear the static and dynamic loads of the superstructure such as tower, nacelle, and blades, and evenly transfer the load to the seabed soil layer to avoid local stress concentration that could lead to foundation damage. Currently, the composite cylindrical foundation still adopts a "fixed flange connection" design when it is connected to the tower of the wind power generation device.

[0003] However, when the foundation is prefabricated on land, the position of the flange hole of the top support platform is fixed. During the sea immersion process, the foundation is prone to "azimuth deviation" due to the influence of wind, waves, ocean currents and positioning errors. This causes the foundation flange to be misaligned with the "optimal windward direction". If the tower is forcibly installed at this time, the blades will form an angle with the wind direction, which will lead to a decrease in wind energy capture efficiency and thus reduce the power generation efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a composite cylindrical foundation for offshore wind power in order to solve the above problems. This foundation allows for flexible adjustment of the tower orientation after installation, thereby ensuring the efficiency of wind power generation.

[0005] This utility model achieves the above objectives through the following technical solutions: A composite cylindrical foundation for offshore wind power includes a support base, a bearing platform rotatably connected to the top of the support base, a flange fixedly connected to the bearing platform, a limiting structure on the support base including a movable ring and locking teeth, a movable ring slidably connected to the support base, a plurality of locking teeth integrally formed on the movable ring, a plurality of cross-sections on the outer side of the movable ring, a plurality of locking grooves on the bearing platform, the locking teeth engaging with adjacent locking grooves, a plurality of sliding rods fixedly connected to the top side of the movable ring, a guide shaft fixedly connected to the sliding rods, a rotating ring rotatably connected to the support base, the rotating ring having a plurality of guide grooves, and the guide shaft extending into the interior of adjacent guide grooves.

[0006] Preferably, the plurality of slots are arranged in a circular array about the center of the support platform, and the plurality of teeth are arranged in a circular array about the center of the moving ring.

[0007] Preferably, the plurality of the cut surfaces are arranged in a circular array about the center of the moving ring, the plurality of the slide bars are arranged in a circular array about the center of the moving ring, and the center of the rotating ring and the center of the bearing platform are on the same straight line.

[0008] Preferably, the plurality of guide grooves are arranged in a circular array about the center of the rotating ring, and the guide grooves are provided in two sections, the first section being inclined and the second section being horizontal.

[0009] Preferably, the rotating ring is provided with a fixing structure, the fixing structure includes a connecting rod and a plug rod, the connecting rod is fixedly connected to the outer side of the rotating ring, the plug rod is threadedly connected to the connecting rod, the support base is provided with a slot, and the plug rod and the slot are engaged.

[0010] Preferably, the bottom end of the insertion rod has a trapezoidal cross-section, and a handle is fixedly connected to the insertion rod.

[0011] Preferably, a construction platform is fixedly connected to the support base near the top, a guardrail is fixedly connected to the construction platform, and a ladder is fixedly connected to the support base.

[0012] Preferably, a base is fixedly connected to the bottom end of the support, and a plurality of reinforcing rods are fixedly connected between the base and the support.

[0013] Preferably, the cross-section between the support base and the base is T-shaped, the width of the top section of the support base is smaller than the width of the bottom section, and the four reinforcing rods are arranged in a circular array about the middle of the support base.

[0014] Compared with the prior art, the present invention has the following beneficial effects: When the flange orientation needs to be adjusted after the support base is installed, this utility model can release the limiting of the rotating ring through the fixing structure. Then, by rotating the rotating ring, multiple guide shafts will move inside the first section of multiple guide grooves during the rotation. At this time, the sliding rod will slide on the support base. The simultaneous movement of multiple sliding rods will drive the moving ring to move inside the support base. As the rotating ring continues to rotate, the guide shaft will be located inside the second section of the guide groove. At this time, the rotation of the rotating ring can be stopped. Since the multiple locking teeth and locking grooves are not engaged at this time, the bearing platform can be rotated. The flange will rotate with the bearing platform. After the flange orientation is adjusted, the rotating ring can be rotated in the opposite direction to make the multiple locking teeth engage with the multiple different locking grooves. At this time, the bearing platform cannot rotate, thus completing the adjustment of the flange orientation. After the flange orientation is adjusted, the orientation of the wind power generation tower will also change accordingly when the tower is installed, thus enabling the blades to better capture wind energy, thereby effectively improving the efficiency of wind power generation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the support base and the load-bearing platform of this utility model; Figure 3for Figure 2 The diagram shown is an enlarged view of the structure of part A. Figure 4 This is a schematic diagram of the connection structure between the movable ring and the retaining tooth of this utility model.

[0016] The diagram shows: 1. Support base; 2. Load-bearing platform; 3. Flange; 4. Limiting structure; 401. Moving ring; 402. Clamping tooth; 403. Cut surface; 404. Clamping groove; 405. Sliding rod; 406. Guide shaft; 407. Guide groove; 408. Rotary ring; 5. Fixing structure; 501. Connecting rod; 502. Insert rod; 503. Slot; 504. Handle; 6. Construction platform; 7. Guardrail; 8. Ladder; 9. Base; 10. Reinforcing rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1 to 4As shown, this utility model embodiment provides an offshore wind power composite cylindrical foundation, including a support base 1, a bearing platform 2 rotatably connected to the top of the support base 1, a flange 3 fixedly connected to the bearing platform 2, a limiting structure 4 provided on the support base 1, the limiting structure 4 including a moving ring 401 and locking teeth 402, the moving ring 401 slidably connected to the support base 1, multiple locking teeth 402 integrally formed on the moving ring 401, multiple cut surfaces 403 provided on the outer side of the moving ring 401, multiple slots 404 provided on the bearing platform 2, the locking teeth 402 engaging with adjacent slots 404, multiple sliding rods 405 fixedly connected to the top side of the moving ring 401, a guide shaft 406 fixedly connected to the sliding rods 405, a rotating ring 408 rotatably connected to the support base 1, multiple guide grooves 407 provided on the rotating ring 408, and the guide shaft 406 extending into the interior of adjacent guide grooves 407. Multiple slots 404 are arranged in a circular array about the center of the support platform 2, and multiple teeth 402 are arranged in a circular array about the center of the moving ring 401. Therefore, the simultaneous engagement of multiple teeth 402 with the slots 404 can improve the firmness of fixing the support platform 2 after orientation adjustment. Multiple facets 403 are arranged in a circular array about the center of the moving ring 401. By setting the facets 403, rotation between the moving ring 401 and the support base 1 can be prevented. Multiple slide rods 405 are arranged in a circular array about the center of the moving ring 401. Therefore, the simultaneous movement of multiple slide rods 405 can drive the moving ring 401 to slide inside the support base 1. The center of the rotating ring 408 and the center of the support platform 2 are on the same straight line. Multiple guide grooves 407 are arranged in a circular array about the center of the rotating ring 408. The guide grooves 407 are divided into two sections. The first section is inclined, so when the guide shaft 406 moves inside the first section of the guide groove 407, the slide rod 405 can move. The second section is horizontal, so when the guide shaft 406 is inside the second section of the guide groove 407, it will not rotate after the rotating ring 408 is released.

[0019] Please see Figures 1 to 4 As shown, the rotating ring 408 is provided with a fixing structure 5, which includes a connecting rod 501 and a plug rod 502. The connecting rod 501 is fixedly connected to the outer side of the rotating ring 408, and the plug rod 502 is threadedly connected to the connecting rod 501. The support base 1 is provided with a slot 503, and the plug rod 502 engages with the slot 503, thus fixing the rotating ring 408 and preventing it from rotating. The bottom end of the plug rod 502 has a trapezoidal cross-section, which serves as a motion guide when the plug rod 502 engages with the slot 503. A handle 504 is fixedly connected to the plug rod 502, so the plug rod 502 can be easily rotated by holding the handle 504.

[0020] Please see Figures 1 to 4As shown, a construction platform 6 is fixedly connected to the support base 1 near its top, allowing operators to stand on it for convenient construction. A guardrail 7 is fixedly connected to the construction platform 6 to prevent operators from falling, thus improving construction safety. A ladder 8 is fixedly connected to the support base 1, facilitating access for construction personnel to the platform 6. A base 9 is fixedly connected to the bottom of the support base 1. The cross-section between the support base 1 and the base 9 is T-shaped. The base 9 is submerged in the seabed for fixation, securing the support base 1. Multiple reinforcing rods 10 are fixedly connected between the base 9 and the support base 1. These four reinforcing rods 10 are arranged in a circular array around the center of the support base 1, enhancing the connection strength between the base 9 and the support base 1. The width of the top section of the support base 1 is smaller than the width of the bottom section, thus increasing the structural strength of the support base 1.

[0021] In use, this utility model allows the base 9 to be submerged in the sea. Once the base 9 is submerged and fixed, the support 1 is also fixed. When the flange 3 needs to be adjusted after the support 1 is fixed, the insertion rod 502 can be rotated by holding the handle 504. When one end of the insertion rod 502 is not engaged with the slot 503, the rotating ring 408 can be rotated. During the rotation of the rotating ring 408, multiple guide shafts 406 will move inside the first section of multiple guide grooves 407 respectively. At this time, the slide rod 405 will slide on the support 1. The simultaneous movement of multiple slide rods 405 will drive the moving ring 401 to move inside the support 1. As the rotating ring 408 continues to rotate, the guide shafts 406 will... Located inside the second section of the guide groove 407, the rotating ring 408 can be stopped at this point. Since the multiple locking teeth 402 and the locking slots 404 are not engaged at this time, the bearing platform 2 can be rotated, and the flange 3 will rotate together with the bearing platform 2. After the orientation of the flange 3 is adjusted, the rotating ring 408 can be rotated in the opposite direction to make the multiple locking teeth 402 engage with the multiple different locking slots 404 respectively. At this time, the bearing platform 2 cannot rotate, thus completing the adjustment of the orientation of the flange 3. After the orientation of the flange 3 is adjusted, its orientation will also change accordingly when the tower of the wind power generation device is installed, thus enabling the blades to better capture wind energy, thereby effectively improving the efficiency of wind power generation.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composite cylindrical foundation for offshore wind power, comprising a support base (1), characterized in that: The top of the support base (1) is rotatably connected to a bearing platform (2), and a flange (3) is fixedly connected to the bearing platform (2). The support base (1) is provided with a limiting structure (4), which includes a moving ring (401) and locking teeth (402). The moving ring (401) is slidably connected to the support base (1). Multiple locking teeth (402) are integrally formed on the moving ring (401). Multiple cut surfaces (403) are provided on the outer side of the moving ring (401). The platform (2) is provided with multiple slots (404), the locking teeth (402) engage with the adjacent slots (404), the top side of the moving ring (401) is fixedly connected with multiple sliding rods (405), the sliding rods (405) are fixedly connected with guide shafts (406), the support base (1) is rotatably connected with a rotating ring (408), the rotating ring (408) is provided with multiple guide grooves (407), and the guide shafts (406) extend into the interior of the adjacent guide grooves (407).

2. The offshore wind power composite cylindrical foundation according to claim 1, characterized in that: The multiple slots (404) are arranged in a circular array about the center of the support platform (2), and the multiple teeth (402) are arranged in a circular array about the center of the moving ring (401).

3. The offshore wind power composite cylindrical foundation according to claim 1, characterized in that: The multiple cut surfaces (403) are arranged in a circular array about the center of the moving ring (401), the multiple slide bars (405) are arranged in a circular array about the center of the moving ring (401), and the center of the rotating ring (408) and the center of the bearing platform (2) are on the same straight line.

4. The offshore wind power composite cylindrical foundation according to claim 1, characterized in that: The multiple guide grooves (407) are arranged in a circular array about the center of the rotating ring (408). The guide grooves (407) are provided in two sections, the first section is inclined and the second section is horizontal.

5. The offshore wind power composite cylindrical foundation according to claim 1, characterized in that: The rotating ring (408) is provided with a fixing structure (5), the fixing structure (5) includes a connecting rod (501) and a plug rod (502). The connecting rod (501) is fixedly connected to the outside of the rotating ring (408), and the plug rod (502) is threadedly connected to the connecting rod (501). The support base (1) is provided with a slot (503), and the plug rod (502) is engaged with the slot (503).

6. The offshore wind power composite cylindrical foundation according to claim 5, characterized in that: The bottom section of the insertion rod (502) is trapezoidal, and a handle (504) is fixedly connected to the insertion rod (502).

7. A composite cylindrical foundation for offshore wind power according to claim 6, characterized in that: A construction platform (6) is fixedly connected to the support base (1) near the top. A guardrail (7) is fixedly connected to the construction platform (6). A ladder (8) is fixedly connected to the support base (1).

8. The offshore wind power composite cylindrical foundation according to claim 1, characterized in that: The bottom end of the support base (1) is fixedly connected to a base (9), and a plurality of reinforcing rods (10) are fixedly connected between the base (9) and the support base (1).

9. A composite cylindrical foundation for offshore wind power according to claim 8, characterized in that: The cross section between the support base (1) and the base (9) is T-shaped. The width of the top section of the support base (1) is smaller than the width of the bottom section. The four reinforcing rods (10) are arranged in a circular array about the middle of the support base (1).

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