Stable mounting and positioning equipment for offshore wind turbine

Abstract

The utility model relates to stable mounting and positioning equipment for an offshore wind turbine. The utility model is applicable to the technical field of offshore floating fans. The technical problem to be solved by the utility model is to provide the stable mounting and positioning equipment for the offshore wind turbine. According to the technical scheme, the stable installing and positioning equipment for the offshore wind turbine is used for installing the wind turbine on a floating type foundation and comprises a fixed disc fixed to the upper end face of the floating type foundation; the mounting cover is provided with a circle of side wall and a top plate connected to the side wall, the inner diameter of the side wall is matched with the diameter of the fixing disc, the side wall is lower than the fixing disc, and the center of the top plate is fixedly connected with the lower end of the fan tower; the fixing pieces are evenly distributed on the periphery of the mounting cover and connected with the mounting cover, at least one bolt through hole is formed in each fixing piece, and a connecting bolt in each bolt through hole can be matched with a bolt hole in the top of the floating type foundation.

Description

A stable installation and positioning device for offshore wind turbines Technical Field

[0001] This utility model relates to a stable installation and positioning device for offshore wind turbines. It is applicable to the field of offshore floating wind turbine technology. Background Technology

[0002] Floating wind turbines are a core solution for the development of offshore wind power in deep waters. Traditional stationary offshore wind turbines generally use flange connections as the key connection method for the tower and foundation transition section. However, traditional flange connections rely on bolt groups to bear the load, and sharp stress concentration zones will form at the edges of the bolt holes, resulting in severe stress concentration and seriously affecting the service life of the bolts. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a stable installation and positioning device for offshore wind turbines, addressing the aforementioned problems.

[0004] The technical solution adopted by this utility model is: a stable installation and positioning device for offshore wind turbines, used to install wind turbines on floating foundations, characterized in that it includes:

[0005] A fixing plate is fixed to the upper surface of the floating base;

[0006] The mounting cover has a ring of sidewalls and a top plate attached to the sidewalls. The inner diameter of the sidewalls is adapted to the diameter of the fixed plate, the height of the sidewalls is less than the height of the fixed plate, and the center of the top plate is fixedly connected to the lower end of the wind turbine tower.

[0007] The fasteners are of several kinds, evenly distributed around the mounting cover and connected to the mounting cover. Each fastener has at least one bolt through hole, and the bolt in the bolt through hole can mate with the bolt hole on the top of the floating foundation.

[0008] The mounting cover has multiple bolt through holes evenly arranged on its side wall, facing the center of the mounting cover. Locking bolts are installed in the bolt through holes, and the inner end of the locking bolts can contact the outer wall of the fixing plate.

[0009] The mounting cover has a guide cone inside, with the tip of the guide cone pointing downwards, and the upper end of the guide cone is connected to the wind turbine tower; the top center of the fixing plate has a conical groove that matches the guide cone.

[0010] The fastener includes:

[0011] The side plate is fixedly connected to the outer wall of the mounting cover;

[0012] A long strip is attached to the bottom of the side plate. The distance between the lower surface of the long strip and the lower surface of the top plate is adapted to the height of the fixing plate. At least one bolt through hole is provided on the long strip.

[0013] The beneficial effects of this utility model are as follows: In this utility model, the fixed plate protrudes outward from the receiving plate, increasing the contact area with the mounting cover and evenly distributing the load across the entire contact surface. This effectively reduces the torque load on the tower and improves its bending resistance. Compared to traditional flange connections, it significantly improves the uniformity of stress distribution, effectively solving the problem of stress concentration, thereby extending bolt service life and ensuring a stable connection of the tower. The mounting cover at the bottom of the tower and the fixed plate on the receiving plate are connected via a socket joint. The fixed plate and the mounting cover work together to achieve rapid positioning, greatly improving installation efficiency. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of Embodiment 1.

[0015] Figures 2 and 3 are cross-sectional views of Example 1.

[0016] Figure 4 is an enlarged view of point A in Figure 2.

[0017] Figure 5 is an enlarged view of section B in Figure 3.

[0018] Figure 6 is a cross-sectional view of the fixing plate and mounting cover in Example 2.

[0019] Figure 7 is a cross-sectional view of Example 3.

[0020] In the diagram: 1. Receiving plate; 2. Fixing plate; 3. Mounting cover; 4. Side block; 5. Long strip plate; 6. Bolt through hole; 7. Connecting bolt; 8. Wind turbine tower; 9. Nacelle; 10. Wind turbine blade; 11. Support column; 12. Positioning plate; 13. Connecting block; 14. Bolt hole; 15. Guide cone; 16. Locking bolt. Detailed Implementation

[0021] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0022] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0023] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0024] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0025] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0026] Example 1: This example is a stable installation and positioning device for offshore wind turbines, used to install wind turbines on floating foundations, including a fixing plate, a mounting cover and fixing components.

[0027] In this example, the floating foundation includes a support plate, a positioning plate, and support columns. The support plate is triangular star-shaped and has sides I, II, and III. The upper surface of side I has multiple bolt holes for mates with the installation connection mechanism. The positioning plate is triangular star-shaped and has sides A, B, and C.

[0028] In this embodiment, the positioning plate is located directly below the receiving plate, and the three sides of the positioning plate correspond one-to-one with the three sides of the receiving plate, and are connected to each other via support columns. The upper end of the support column is connected to the receiving plate, and the lower end is connected to the positioning plate. In this embodiment, a connecting block is installed at each of the three ends of the positioning plate.

[0029] In this example, the fixing plate is fixed to the upper surface of the receiving plate; the mounting cover has a ring of side walls and a top plate attached to the side walls. The inner diameter of the side walls is adapted to the diameter of the fixing plate, the height of the side walls is less than the height of the fixing plate, and the center of the top plate is fixedly connected to the lower end of the wind turbine tower.

[0030] In this embodiment, there are two fasteners, which are evenly distributed around the mounting cover and connected to the mounting cover. The fasteners have two bolt through holes, and the connecting bolts in the bolt through holes can mate with the bolt holes on the top of the floating foundation.

[0031] In this example, the fasteners include a side plate and a long strip plate. The side plate is fixedly connected to the outer wall of the mounting cover, and the long strip plate is attached to the bottom of the side plate. The long strip plate has two bolt through holes. In this example, the distance between the lower surface of the long strip plate and the lower surface of the top plate is adapted to the height of the fixing plate.

[0032] In this embodiment, after the assembly of the fan and the mounting cover is hoisted to the corresponding position above the fixed plate, the mounting cover and the fixed plate work together to achieve rapid positioning, and make the bolt through holes on the fastener correspond to the bolt holes on the top of the floating foundation. Finally, the connection is achieved by connecting bolts, which reduces the accuracy requirements of the hoisting construction.

[0033] Example 2: This example is basically the same as Example 1 in structure. The only difference is that in this example, multiple bolt through holes facing the center of the mounting cover are evenly provided on the side wall of the mounting cover. Locking bolts are installed in the bolt through holes, and the inner end of the locking bolts can contact the outer wall of the fixing plate.

[0034] This embodiment uses multiple locking bolts to lock the fixed plate, thereby enhancing the connection between the mounting cover and the fixed plate and improving structural stability.

[0035] Example 3: This example is basically the same as Example 1 or 2 in structure, except that the installation cover is provided with a guide cone inside, the tip of the guide cone is downward, and the upper end of the guide cone is connected to the wind turbine tower; the top center of the fixed plate is provided with a conical groove that matches the guide cone.

[0036] In this embodiment, the guide cone and the conical groove cooperate to not only guide during installation, but also transfer the horizontal load on the fan to the fixed plate.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stable installation and positioning device for offshore wind turbines, used to install wind turbines on floating foundations, characterized in that, include: A fixed plate is fixed to the upper surface of the floating foundation; a mounting cover has a ring of sidewalls and a top plate attached to the sidewalls. The inner diameter of the sidewalls is adapted to the diameter of the fixed plate, the height of the sidewalls is less than the height of the fixed plate, and the center of the top plate is fixedly connected to the lower end of the wind turbine tower. The fasteners are of several kinds, evenly distributed around the mounting cover and connected to the mounting cover. Each fastener has at least one bolt through hole, and the bolt in the bolt through hole can mate with the bolt hole on the top of the floating foundation.

2. The stable installation and positioning device for offshore wind turbines according to claim 1, characterized in that, The mounting cover has multiple bolt through holes evenly arranged on its side wall, facing the center of the mounting cover. Locking bolts are installed in the bolt through holes, and the inner end of the locking bolts can contact the outer wall of the fixing plate.

3. The stable installation and positioning device for offshore wind turbines according to claim 1, characterized in that: The mounting cover has a guide cone inside, with the tip of the guide cone pointing downwards, and the upper end of the guide cone is connected to the wind turbine tower; the top center of the fixing plate has a conical groove that matches the guide cone.

4. The stable installation and positioning device for offshore wind turbines according to claim 1, characterized in that, The fastener includes: a side plate, which is fixedly connected to the outer wall of the mounting cover; and a long strip plate, which is attached to the bottom of the side plate. The distance between the lower surface of the long strip plate and the lower surface of the top plate is adapted to the height of the fixing plate. The long strip plate is provided with at least one bolt through hole.

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