Wind power tower drum foundation

Abstract

The utility model provides a wind power tower drum foundation which comprises a foundation body, a plurality of annularly-distributed anchor bolts are pre-buried in the foundation body, each anchor bolt is provided with a nut, the wind power tower drum foundation further comprises a protection assembly, the protection assembly is composed of at least two annularly-distributed protection boxes, each protection box is of an arc-shaped hollow structure with an opening in the lower end, and the protection boxes are arranged in the foundation body. Each anchor bolt can be located in the protection box, and the protection box can be fixedly connected with the end of the anchor bolt and tightly press a flange plate at the lower end of the tower barrel. Each protective cover can protect a plurality of anchor bolts and nuts at the same time, so that the mounting operation is convenient, the workload can be reduced, the mounting time can be shortened, and the mounting efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to wind power technology, in particular to a wind tower foundation. BACKGROUND

[0002] The existing wind tower foundation includes a foundation body built on the ground, and the foundation body is pre-buried with a plurality of anchor bolts extending above the foundation body. When the tower is installed, the tower is erected on the foundation body, the anchor bolts are passed through the flange plate at the bottom of the tower, and then the tower is fixed on the foundation body by bolts.

[0003] At present, the end of the anchor bolt on the outside of the tower and the nut connected to the anchor bolt are exposed, and rainwater, moisture and the like can easily cause the anchor bolt and the nut to rust, and rust of the anchor bolt can cause the load bearing capacity of the anchor bolt to decrease, causing safety hazards. In order to avoid rust of the anchor bolt and the nut, a protective sleeve is sleeved on the end of each anchor bolt and the nut connected thereto, and the protective sleeve wraps the anchor bolt and the nut for protection. However, the number of exposed anchor bolts of each tower foundation is large, and the protective sleeve needs to be installed one by one, thereby causing the protection work to be complicated, time-consuming and labor-intensive. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a wind tower foundation to solve the problems of complicated protection work, large workload and long time consumption of the existing anchor bolts and nuts.

[0005] The present application provides a wind tower foundation, which comprises a foundation body, the foundation body is pre-buried with a plurality of annularly distributed anchor bolts, each anchor bolt is provided with a nut;

[0006] Further comprising a protection assembly, the protection assembly is composed of a plurality of protection boxes which are annularly distributed and not less than two in number, the protection box is a hollow structure with an arc shape and an open lower end, so that each anchor bolt can be located inside the protection box;

[0007] The protection box can be fixedly connected with the end of the anchor bolt and tightly press the flange plate at the lower end of the tower.

[0008] Optionally, the upper end of the protection box is provided with two vertical rods which are sealingly and rotatably connected thereto, the lower end of the vertical rod is fixedly provided with a connecting column, and the lower end of the connecting column is provided with a threaded hole which can be threadedly connected with the anchor bolt;

[0009] Wherein, after the threaded hole is in contact with the anchor bolt, there is a gap between the lower end of the protection box and the flange plate at the lower end of the tower.

[0010] Optionally, the upper end of the protection box is sealingly and fixedly provided with a sleeve pipe penetrating the upper end of the protection box, the vertical rod penetrates the sleeve pipe and is in contact with the sleeve pipe;

[0011] It also includes a cap, which is a hollow structure with an open bottom. The cap is fitted onto the upper part of the sleeve and fixedly connected to the upper end of the vertical rod. The inner wall of the cap and the outer wall of the sleeve are rotatably connected by a sealed bearing.

[0012] Optionally, the outer wall of the cap is provided with an anti-slip textured structure.

[0013] Optionally, there may be a gap between two adjacent protective boxes.

[0014] Optionally, the lower end of the protective box is sealed with an annular plate adapted to the protective box, and the lower end of the annular plate is fixed with an elastic sealing gasket adapted to the annular plate.

[0015] Optionally, the vertical rod is located at the end of the protective box, and the end of the protective box is provided with an observation window with a transparent structure.

[0016] The wind turbine tower foundation provided in this application features a protective assembly consisting of at least two protective boxes. Each protective box is an arc-shaped, hollow structure with an open bottom, allowing each anchor bolt to be located inside. The protective box is fixedly connected to the end of the anchor bolt and presses tightly against the flange at the bottom of the tower. In use, after the tower is secured to the foundation body with nuts, the protective box is placed over the corresponding anchor bolt, and then fixedly connected to the anchor bolt, pressing the protective box tightly against the flange at the bottom of the tower. This provides protection for the anchor bolt and nut. Compared to existing protection methods, each protective cover can simultaneously protect multiple anchor bolts and nuts, making installation more convenient, reducing workload, shortening installation time, and improving installation efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural schematic diagram of a wind turbine tower foundation provided in an embodiment of this application;

[0019] Figure 2 A top view of the wind turbine tower foundation provided in an embodiment of this application;

[0020] Figure 3 A three-dimensional partial cross-sectional structural diagram of a wind turbine tower foundation provided in an embodiment of this application;

[0021] Figure 4 for Figure 3A magnified structural diagram of region A;

[0022] Figure 5 This is a partial three-dimensional structural diagram of a wind turbine tower foundation provided in an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Foundation body; 2. Anchor bolt; 3. Nut; 4. Protective box; 5. Vertical rod; 6. Connecting column; 7. Threaded hole; 8. Sleeve; 9. Cap; 10. Sealed bearing; 11. Anti-slip textured structure; 12. Annular plate; 13. Elastic sealing gasket; 14. Observation window; 15. Tower; 16. Flange. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0025] like Figures 1-5 As shown:

[0026] An embodiment of this application provides a wind turbine tower foundation, which includes a foundation body 1. The foundation body 1 is pre-embedded with a plurality of annularly distributed anchor bolts 2, and each anchor bolt 2 is provided with a nut 3.

[0027] In this embodiment, the basic ontology 1 is existing technology and will not be described in detail.

[0028] It also includes a protective component, which consists of no fewer than two protective boxes 4 arranged in a ring. The protective box 4 is an arc-shaped hollow structure with an opening at the bottom, so that each anchor bolt 2 can be located inside the protective box 4.

[0029] Furthermore, the protective box 4 is made of galvanized steel to improve its service life.

[0030] The protective box 4 can be fixedly connected to the end of the anchor bolt 2 and press tightly against the flange 16 at the lower end of the tower 15.

[0031] In this embodiment, the specific number of protective boxes 4 is determined according to the diameter of the tower 15, that is, protective boxes 4 of appropriate length are set to avoid the protective boxes 4 being too long and inconvenient for transportation.

[0032] In use, after the tower 15 is fixed to the foundation body 1 by the nuts 3, each protective box 4 is placed over the corresponding anchor bolt 2, so that all the protective boxes 4 are arranged in a ring around the outside of the tower 15, and each anchor bolt 2 and the nut 3 connected to it are located inside the corresponding protective box 4. Then, each protective box 4 is fixedly connected to the anchor bolt 2 inside the protective box 4, and the lower end of the protective box 4 is pressed tightly against the flange 16 at the lower end of the tower 15. After the lower end of the protective box 4 is pressed tightly against the flange 16 at the lower end of the tower 15, it can effectively prevent rainwater, moisture and other substances from entering the protective box 4 and affecting the anchor bolt 2 and nut 3, so that the protective box 4 can protect the anchor bolt and nut 3.

[0033] The wind turbine tower foundation provided in this embodiment is equipped with a protective component consisting of at least two protective boxes 4 arranged in a ring. The protective box 4 is an arc-shaped hollow structure with an open bottom, allowing each anchor bolt 2 to be located inside the protective box 4. The protective box 4 can be fixedly connected to the end of the anchor bolt 2 and press tightly against the flange 16 at the lower end of the tower 15. This allows each protective cover to protect multiple anchor bolts 2 and multiple nuts 3 simultaneously during use, which not only makes the installation work convenient but also reduces the workload, shortens the installation time, and improves the installation efficiency.

[0034] In some embodiments of this application, the upper end of the protective box 4 is provided with two vertical rods 5 that are rotatably connected to it in a sealed manner, the lower end of the vertical rods 5 is fixed with a connecting post 6, and the lower end of the connecting post 6 is provided with a threaded hole 7 that can be threadedly connected to the anchor bolt 2.

[0035] When the threaded hole 7 contacts the anchor bolt 2, there is a gap between the lower end of the protective box 4 and the flange 16 at the lower end of the tower 15.

[0036] In use, the protective box 4 is placed over the corresponding anchor bolt 2, and the threaded hole 7 is aligned with the end of the corresponding anchor bolt 2. Then, the vertical rod 5 is rotated, which drives the connecting column 6 to rotate. After the connecting column 6 rotates, the threaded hole 7 engages with the end of the anchor bolt 2. At this time, the protective box 4 moves down. When the protective box 4 presses tightly against the flange 16 at the lower end of the tower cylinder 15, the rotation of the vertical rod 5 can be stopped, thereby fixing the protective box 4 to the end of the anchor bolt 2.

[0037] In this embodiment, by setting the threaded hole 7 at the lower end of the connecting column 6 to be threadedly connected to the end of the anchor bolt 2, it is not only convenient to disassemble the protective box 4 so that the protective box 4 can be reused, but also the threaded hole 7 can be engaged with the end of the anchor bolt 2 to press down the protective box 4, thereby improving the effect of the protective box 4 in pressing the flange 16.

[0038] In some embodiments of this application, the upper end of the protective box 4 is sealed and fixed with a sleeve 8 that penetrates the upper end of the protective box 4, and the vertical rod 5 penetrates the sleeve 8 and contacts the sleeve 8.

[0039] It also includes a cap 9, which is a hollow structure with an open bottom. The cap 9 is fitted onto the upper part of the sleeve 8 and fixedly connected to the upper end of the vertical rod 5. The inner wall of the cap 9 and the outer wall of the sleeve 8 are rotatably connected by a sealing bearing 10, thereby rotatably connecting the vertical rod 5 to the protective box 4 in a sealed manner. This is used to prevent rainwater or moisture from entering the protective box 4 from the connection point between the vertical rod 5 and the protective box 4. Specifically, the sealing bearing 10 is fitted onto the upper part of the sleeve 8, and the inner ring of the sealing bearing 10 is sealed and welded to the outer wall of the sleeve 8, while the outer ring of the sealing bearing 10 is sealed and welded to the inner wall of the cap 9.

[0040] In this embodiment, both the sleeve 8 and the cap 9 are made of galvanized steel. The sleeve 8 is sealed and welded to the upper end of the protective box 4. The upper end of the vertical rod 5 is welded and fixed to the inner upper wall of the cap 9.

[0041] In some embodiments of this application, the outer side wall of the cap 9 is provided with an anti-slip textured structure 11 to facilitate rotating the cap 9.

[0042] In some embodiments of this application, there is a gap between two adjacent protective boxes 4 for draining rainwater between the protective box 4 and the tower 15.

[0043] In some embodiments of this application, the lower end of the protective box 4 is sealed with an annular plate 12 adapted to the protective box 4, and the lower end of the annular plate 12 is fixed with an elastic sealing gasket 13 adapted to the annular plate 12, which is used to improve the sealing effect between the protective box 4 and the flange 16.

[0044] In some embodiments of this application, the vertical rod 5 is located at the end of the protective box 4, and the end of the protective box 4 is sealed with a transparent observation window 14 to facilitate aligning the threaded hole 7 with the end of the anchor bolt 2.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A wind turbine tower foundation, comprising a foundation body (1), wherein the foundation body (1) is pre-embedded with a plurality of annularly distributed anchor bolts (2), each anchor bolt (2) being provided with a nut (3), characterized in that: It also includes protective components, which consist of at least two protective boxes (4) arranged in a ring; The protective box (4) is an arc-shaped hollow structure with an opening at the bottom, so that each anchor bolt (2) can be located inside the protective box (4); The protective box (4) can be fixedly connected to the end of the anchor bolt (2) and press tightly against the flange at the lower end of the tower.

2. The wind turbine tower foundation according to claim 1, characterized in that: The upper end of the protective box (4) is provided with two vertical rods (5) that are rotatably connected to it in a sealed manner. The lower end of the vertical rod (5) is fixed with a connecting column (6), and the lower end of the connecting column (6) is provided with a threaded hole (7) that can be threadedly connected to the anchor bolt (2). Among them, after the threaded hole (7) contacts the anchor bolt (2), there is a gap between the lower end of the protective box (4) and the flange at the lower end of the tower.

3. The wind turbine tower foundation according to claim 2, characterized in that: The upper end of the protective box (4) is sealed and fixed with a sleeve (8) that penetrates the upper end of the protective box (4), and the vertical rod (5) penetrates the sleeve (8) and contacts the sleeve (8); It also includes a cap (9), which is a hollow structure with an opening at the lower end. The cap (9) is fitted onto the upper part of the sleeve (8) and fixedly connected to the upper end of the vertical rod (5). The inner wall of the cap (9) and the outer wall of the sleeve (8) are connected by a sealed bearing (10) for a sealed rotational connection.

4. The wind turbine tower foundation according to claim 3, characterized in that: The outer wall of the cap (9) is provided with an anti-slip textured structure (11).

5. The wind turbine tower foundation according to claim 1, characterized in that: There is a gap between two adjacent protective boxes (4).

6. The wind turbine tower foundation according to claim 1, characterized in that: The lower end of the protective box (4) is sealed with an annular plate (12) adapted to the protective box (4), and the lower end of the annular plate (12) is fixed with an elastic sealing gasket (13) adapted to the annular plate (12).

7. The wind turbine tower foundation according to claim 2, characterized in that: The vertical rod (5) is located at the end of the protective box (4), and the end of the protective box (4) is provided with a transparent observation window (14).

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