Prestressed anchor bolt for wind power generation foundation

Abstract

The utility model discloses a wind power generation foundation pre-stressed anchor bolt, which relates to the technical field of wind power generation and comprises an anchor bolt main body, a plurality of reinforcing ribs are fixed on the side wall of the anchor bolt main body at equal intervals, and a protective sleeve is sleeved on the outer side of the anchor bolt main body; the anchor bolt comprises an anchor bolt body, an upper thread part and a lower thread part, the upper thread part and the lower thread part are arranged at the upper end and the lower end of the anchor bolt body respectively, the upper thread part and the lower thread part are both in threaded sleeve connection with a first hexagon nut and a second hexagon nut, and the outer side of the first hexagon nut is in sleeve connection with a first protection piece. The outer side of the second hexagon nut is sleeved with a second protection piece. By arranging the protective sleeve, the first protective piece and the second protective piece, the anchor bolt main body, the upper thread part, the lower thread part, the first hexagon nut and the second hexagon nut can be effectively isolated from the external environment, so that the anchor bolt main body, the upper thread part, the lower thread part, the first hexagon nut and the second hexagon nut are not in direct contact with concrete or the outside, and the anti-corrosion capability can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, specifically to a prestressed anchor bolt for wind power generation foundations. Background Technology

[0002] As an important component of the prestressed anchor foundation, the prestressed anchor bolt runs through the entire height of the foundation. As one of the important components connecting the wind turbine tower foundation structure, it bears the thrust, torque, bending moment, gyroscopic torque, motor vibration, and swaying under stress caused by wind on the rotor.

[0003] Currently, when installing prestressed anchors, both ends pass through the upper and lower anchor plates respectively, and are fixed by nuts. The lower nut and the lower threaded part of the anchor are in direct contact with the concrete and are easily corroded and damaged. The upper nut and the upper threaded part of the anchor are exposed to the outside and are easily rusted and corroded by wind, sun and rain, which reduces their service life. Utility Model Content

[0004] The purpose of this invention is to provide a prestressed anchor bolt for wind power generation foundations to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a prestressed anchor bolt for wind power generation foundations, comprising:

[0006] An anchor bolt body, wherein multiple reinforcing ribs are fixed at equal intervals on the side wall of the anchor bolt body, and a protective sleeve is sleeved on the outer side of the anchor bolt body;

[0007] The anchor bolt body has an upper threaded portion and a lower threaded portion, which are respectively located at the upper and lower ends. A first hexagonal nut and a second hexagonal nut are threaded onto the upper and lower threaded portions. A first protective member is sleeved on the outside of the first hexagonal nut, and a second protective member is sleeved on the outside of the second hexagonal nut.

[0008] Preferably, the two first hexagonal nuts are positioned between the two second hexagonal nuts;

[0009] The first protective component includes a first hexagonal collar, with a sliding sleeve fixed at the end of the first hexagonal collar away from the second protective component. The end of the sliding sleeve away from the first hexagonal collar is slidably sleeved on the protective sleeve. The first hexagonal nut is fixedly nested inside the first hexagonal collar, and the first protective component can protect the first hexagonal nut.

[0010] Preferably, a first sealing gasket is fixed to the edge of the first hexagonal collar away from the sliding sleeve, which improves the sealing performance when the first hexagonal collar contacts the upper or lower anchor plate, thereby protecting the first hexagonal nut.

[0011] Preferably, the second protective component includes a second hexagonal collar, with a telescopic sleeve fixed to the end of the second hexagonal collar away from the first protective component, and the second hexagonal nut is fixedly nested inside the second hexagonal collar. The second protective component can protect the portion of the prestressed anchor bolt extending out of the upper and lower anchor plates, and at the same time protect the second hexagonal nut.

[0012] Preferably, a second sealing gasket is fixed to the edge of the second hexagonal collar away from the telescopic sleeve, which improves the sealing performance when the second hexagonal collar contacts the upper or lower anchor plate, thereby protecting the second hexagonal nut.

[0013] Preferably, a sealing ring is fixed to the inner wall of the end of the sliding sleeve away from the first hexagonal collar, which improves the sealing between the sliding sleeve and the protective sleeve, thereby improving the protection of the anchor bolt body.

[0014] Preferably, both the protective sleeve and the sliding sleeve are made of PVC material. PVC material has excellent chemical corrosion resistance and can remain stable in a variety of harsh environments, effectively protecting the anchor bolt body.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. By setting up a protective sleeve, a first protective component and a second protective component, the anchor bolt body, the upper threaded part, the lower threaded part, the first hexagonal nut and the second hexagonal nut can be effectively isolated from the external environment, so that they do not come into direct contact with concrete or the outside environment, which can greatly improve the corrosion resistance.

[0017] 2. By fixing multiple reinforcing ribs at equal intervals on the side wall of the anchor bolt body, the bending and shear resistance of the anchor bolt body is improved, effectively avoiding breakage or deformation caused by external forces. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Enlarged schematic diagram of part A;

[0021] Figure 3 This is a schematic diagram of the appearance of the present utility model;

[0022] Figure 4 This is a diagram showing the connection between the anchor bolt body and the upper and lower threaded parts of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the first protective component of this utility model;

[0024] Figure 6 This is a diagram showing the connection between the first protective component and the first hexagonal nut of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the second protective component of this utility model;

[0026] Figure 8 This is a diagram showing the connection between the second protective component and the second hexagonal nut of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Anchor bolt body; 2. Upper threaded part; 3. Lower threaded part; 4. Reinforcing rib; 5. Protective sleeve; 6. First hexagonal nut; 7. Second hexagonal nut; 8. First protective component; 9. Second protective component; 10. First hexagonal collar; 11. Sliding sleeve; 12. First sealing gasket; 13. Second hexagonal collar; 14. Telescopic sleeve; 15. Second sealing gasket; 16. Sealing ring. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] This utility model provides, for example Figures 1 to 8 The wind turbine foundation prestressed anchor bolt shown includes:

[0031] An anchor bolt body 1, with multiple reinforcing ribs 4 fixed at equal intervals on the side wall of the anchor bolt body 1, and a protective sleeve 5 sleeved on the outside of the anchor bolt body 1;

[0032] The upper threaded part 2 and the lower threaded part 3 are respectively provided at the upper end and the lower end of the anchor bolt body 1. The upper threaded part 2 and the lower threaded part 3 are threadedly sleeved with a first hexagonal nut 6 and a second hexagonal nut 7. A first protective member 8 is sleeved on the outside of the first hexagonal nut 6, and a second protective member 9 is sleeved on the outside of the second hexagonal nut 7.

[0033] The two first hexagonal nuts 6 are positioned between the two second hexagonal nuts 7;

[0034] The first protective component 8 includes a first hexagonal collar 10. A sliding sleeve 11 is fixed to one end of the first hexagonal collar 10 away from the second protective component 9. The sliding sleeve 11 is slidably sleeved on the protective sleeve 5 at one end away from the first hexagonal collar 10. A first hexagonal nut 6 is fixedly nested inside the first hexagonal collar 10. The first protective component 8 can protect the first hexagonal nut 6.

[0035] The first hexagonal collar 10 is fixed with a first sealing gasket 12 on the side edge away from the sliding sleeve 11, which improves the sealing performance when the first hexagonal collar 10 contacts the upper or lower anchor plate, thereby protecting the first hexagonal nut 6.

[0036] The second protective component 9 includes a second hexagonal collar 13. A telescopic sleeve 14 is fixed to one end of the second hexagonal collar 13 away from the first protective component 8. A second hexagonal nut 7 is fixedly nested inside the second hexagonal collar 13. The second protective component 9 can protect the part of the prestressed anchor bolt that extends out of the upper and lower anchor plates, and at the same time protect the second hexagonal nut 7.

[0037] The second hexagonal collar 13 has a second sealing gasket 15 fixed on the side edge away from the telescopic sleeve 14, which improves the sealing performance when the second hexagonal collar 13 contacts the upper or lower anchor plate, thereby protecting the second hexagonal nut 7.

[0038] A sealing ring 16 is fixed to the inner wall of the end of the sliding sleeve 11 away from the first hexagonal collar 10, which improves the sealing between the sliding sleeve 11 and the protective sleeve 5, thereby improving the protection of the anchor bolt body 1.

[0039] Both the protective sleeve 5 and the sliding sleeve 11 are made of PVC material. PVC material has excellent chemical corrosion resistance and can remain stable in a variety of harsh environments, effectively protecting the anchor bolt body 1.

[0040] In this utility model, multiple reinforcing ribs 4 are fixed at equal intervals on the side wall of the anchor bolt body 1, which improves the anchor bolt's resistance to bending and shearing, effectively preventing breakage or deformation caused by external forces. A protective sleeve 5 is fitted onto the outside of the anchor bolt body 1 to protect it. First protective members 8 are installed on both the upper threaded portion 2 and the lower threaded portion 3. The first protective member 8 is threadedly connected to the corresponding upper threaded portion 2 and lower threaded portion 3 via a first hexagonal nut 6 fixed inside it. A sliding sleeve 11 on the first protective member 8 is slidably fitted onto the protective sleeve 5. When the anchor bolt is installed between the upper and lower anchor plates, a second protective member 9 is fitted onto the portion of the upper threaded portion 2 that extends beyond the upper anchor plate. The portion of the threaded part 3 extending beyond the lower anchor plate is fitted with the second protective component 9. The first protective component 8, in conjunction with the protective sleeve 5, can protect the anchor bolt portion between the upper and lower anchor plates and the first hexagonal nut 6, isolating them from the concrete and preventing them from directly contacting the concrete, which can greatly improve the corrosion resistance. The second protective component 9 located below can protect the portion of the lower threaded part 3 extending beyond the lower anchor plate and the second hexagonal nut 7, isolating them from the concrete and improving the corrosion resistance. At the same time, the second protective component 9 located above can protect the portion of the upper threaded part 2 extending beyond the upper anchor plate and the second hexagonal nut 7, isolating them from the external environment and improving the corrosion resistance.

[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A prestressed anchor bolt for wind power generation foundations, characterized in that, include: An anchor bolt body (1), the side wall of the anchor bolt body (1) is fixed with multiple reinforcing ribs (4) at equal intervals, and the outer side of the anchor bolt body (1) is fitted with a protective sleeve (5); The upper threaded part (2) and the lower threaded part (3) are respectively provided on the upper end and the lower end of the anchor bolt body (1). The upper threaded part (2) and the lower threaded part (3) are threaded with a first hexagonal nut (6) and a second hexagonal nut (7). The first hexagonal nut (6) is fitted with a first protective member (8) on the outside, and the second hexagonal nut (7) is fitted with a second protective member (9) on the outside.

2. The prestressed anchor bolt for wind power generation foundations according to claim 1, characterized in that: The two first hexagonal nuts (6) are positioned between the two second hexagonal nuts (7); The first protective component (8) includes a first hexagonal collar (10), and a sliding sleeve (11) is fixed at one end of the first hexagonal collar (10) away from the second protective component (9). The sliding sleeve (11) is slidably sleeved on the protective sleeve (5) at one end away from the first hexagonal collar (10). The first hexagonal nut (6) is fixedly nested inside the first hexagonal collar (10).

3. A prestressed anchor bolt for wind power generation foundations according to claim 2, characterized in that: The first hexagonal collar (10) is fixed with a first sealing gasket (12) on the side edge away from the sliding sleeve (11).

4. A prestressed anchor bolt for wind power generation foundations according to claim 1, characterized in that: The second protective component (9) includes a second hexagonal collar (13), and a telescopic sleeve (14) is fixed to one end of the second hexagonal collar (13) away from the first protective component (8). The second hexagonal nut (7) is fixedly nested inside the second hexagonal collar (13).

5. A prestressed anchor bolt for wind power generation foundations according to claim 4, characterized in that: The second hexagonal collar (13) is fixed with a second sealing gasket (15) on the side edge away from the telescopic sleeve (14).

6. A prestressed anchor bolt for wind power generation foundations according to claim 2, characterized in that: A sealing ring (16) is fixed to the inner wall of the end of the sliding sleeve (11) away from the first hexagonal collar (10).

7. A prestressed anchor bolt for wind power generation foundations according to claim 2, characterized in that: Both the protective sleeve (5) and the sliding sleeve (11) are made of PVC material.

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