A connection structure of a connection position of a wind turbine foundation jacket

Abstract

The application relates to the field of a fan foundation jacket, in particular to a connecting structure of a connecting position of a fan foundation jacket, which comprises a first flange arranged on the upper part of a pile foundation and a second flange arranged on the lower part of the jacket, the first flange is provided with a first through hole, the second flange is provided with a second through hole corresponding to the first through hole, the first flange is provided with a bolt and a nut, the bolt is sequentially arranged in the first through hole and the second through hole, the nut is threadedly connected with the bolt, and a double-stacked self-locking washer is arranged between the nut and the second flange. The application has the effect of reducing the possibility of loosening of the nut and the bolt at the connecting position.

Description

Technical Field

[0001] This application relates to the field of wind turbine foundation jackets, and more particularly to a connection structure for the connection position of a wind turbine foundation jacket. Background Technology

[0002] A wind turbine foundation jacket is a steel structure used to support offshore wind turbine generators, primarily in water depths of 30-80 meters. A wind turbine foundation jacket is typically a space truss structure welded from multiple steel pipes, then fixed to the seabed by piles, providing stable support for the wind turbine tower. The jacket and piles are usually connected using bolts. However, because the jacket and piles are constantly subjected to the impact of waves, the connection points are prone to slight movement, causing the bolts to loosen and affecting the service life of the wind turbine foundation jacket. Utility Model Content

[0003] To reduce the possibility of nuts and bolts loosening at the connection points, this application provides a connection structure for the connection points of a wind turbine foundation jacket.

[0004] This application provides a connection structure for the connection position of a wind turbine foundation jacket, which adopts the following technical solution: A connection structure for a wind turbine foundation jacket support includes a first flange disposed on the upper part of the pile foundation and a second flange disposed on the lower part of the jacket support. The first flange has a first through hole, and the second flange has a second through hole corresponding to the first through hole. The first flange is provided with a bolt and a nut. The bolt passes through the first through hole and the second through hole in sequence. The nut is threaded to the bolt. A double-layered self-locking washer is provided between the nut and the second flange.

[0005] By adopting the above technical solution, a double-layered self-locking washer is set between the nut and the second flange, thereby improving the nut's anti-loosening ability and reducing the possibility of loosening of the nuts and bolts at the connection position, thus improving the service life of the guide frame.

[0006] Optionally, the first flange is provided with a mounting bracket, both ends of which are covered with sleeves, and the two sleeves are respectively covered on the nuts and bolts.

[0007] By adopting the above technical solution, a mounting bracket is provided on the first flange, and a cover sleeve is provided on the mounting bracket. The cover sleeve protects the nuts and bolts, thereby reducing the possibility of corrosion of the nuts and bolts and improving their service life.

[0008] Optionally, the mounting bracket is provided with a locking block, and the locking block has a first locking groove, which can be locked onto the first flange and the second flange.

[0009] By adopting the above technical solution, a locking block is provided on the mounting bracket. When the mounting bracket is installed, the first locking block is locked onto the first flange and the second flange to facilitate the installation of the mounting bracket.

[0010] Optionally, the cover is equipped with a control lever, which is slidably connected to the mounting frame in the vertical direction.

[0011] By adopting the above technical solution, the control lever is slidably connected to the mounting bracket, allowing the cover sleeve to slide, thereby facilitating the sliding of the cover sleeve so that it can be placed on the nut or bolt.

[0012] Optionally, the mounting bracket is provided with a spring that forces the two covers to slide toward each other.

[0013] By adopting the above technical solution, the spring can force the two covers to slide towards each other, so that the covers are always covered on the nuts or bolts.

[0014] Optionally, a sealing gasket is provided on the end face of the opening of the cover sleeve, and the sealing gasket is used to abut against the end face of the first flange or the second flange.

[0015] By adopting the above technical solution, a sealing gasket is provided on the cover to improve the sealing performance of the cover, thereby further reducing the possibility of rust on the nuts or bolts and extending their service life.

[0016] Optionally, the spring is coaxially sleeved on the control lever, one end of the spring is fixedly connected to the side of the mounting bracket, and the other end of the spring is fixedly connected to the control lever.

[0017] In summary, this application includes at least one of the following beneficial technical effects: 1. A double-layered self-locking washer is installed between the nut and the second flange to improve the nut's anti-loosening ability, thereby reducing the possibility of loosening of the nuts and bolts at the connection position and improving the service life of the guide frame; 2. A mounting bracket is provided on the first flange, and a cover sleeve is provided on the mounting bracket. The cover sleeve protects the nuts and bolts, thereby reducing the possibility of corrosion of the nuts and bolts and thus improving their service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Example 1; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the structure of Example 2.

[0019] Explanation of reference numerals in the attached drawings: 1. Pile foundation; 11. First flange; 2. Guide frame; 12. Second flange; 3. Bolt; 31. Nut; 4. Double-layer self-locking washer; 5. Mounting bracket; 51. Locking block; 511. First locking groove; 52. Cover sleeve; 521. Sealing gasket; 53. Control lever; 54. Spring. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0021] Example 1: This application discloses a connection structure for the connection position of a wind turbine foundation jacket 2. (Refer to...) Figure 1 and Figure 2 The system includes a first flange 11 coaxially fixedly connected to the upper part of the pile foundation 1 and a second flange 12 fixedly connected to the lower part of the guide frame 2. The end face of the first flange 11 has several first through holes arranged in a circular array around the axis of the first flange 11. The end face of the second flange 12 has several second through holes corresponding to the first through holes. The first flange 11 is equipped with bolts 3 and nuts 31. The bolts 3 are sequentially inserted into the first and second through holes, and the nuts 31 are threaded onto the bolts 3. A double-layered self-locking washer 4 is placed between the nut 31 and the second flange 12, with the double-layered self-locking washer 4 abutting against the end face of the second flange 12 and the end face of the nut 31, respectively.

[0022] The implementation principle of the connection structure of the connection position of the wind turbine foundation jacket 2 in this application embodiment is as follows: a double-layered self-locking washer 4 is provided between the nut 31 and the second flange 12, thereby improving the anti-loosening of the nut 31 and reducing the possibility of loosening of the nut 31 and bolt 3 at the connection position, so as to improve the service life of the jacket 2.

[0023] Example 2: The difference between Example 2 and Example 1 is that, referring to Figure 3 The first flange 11 is provided with a mounting bracket 5, which is U-shaped. Several mounting brackets 5 are provided, and each mounting bracket 5 has a locking block 51 fixedly connected to its inner side. The locking block 51 has a first locking groove 511 on its side near the U-shaped opening of the mounting bracket 5. When the mounting bracket 5 is installed, the first locking groove 511 can be locked onto the first flange 11 and the second flange 12.

[0024] Both ends of the mounting bracket 5 are provided with cover sleeves 52, which respectively cover the nuts of the nut 31 and bolt 3. A control lever 53 is fixedly connected to the side of the cover sleeve 52. The axis of the control lever 53 is parallel to the length direction of the mounting bracket 5, and the control lever 53 slides along the length direction of the mounting bracket 5. When the mounting bracket 5 is installed on the first flange 11 and the second flange 12 via the locking block 51, the control lever 53 is moved to control the sliding of the cover sleeve 52, so that the cover sleeve 52 covers the nut 31 or bolt 3.

[0025] Mounting bracket 5 is provided with spring 54 that forces two cover sleeves 52 to slide towards each other. Spring 54 is located on the outside of mounting bracket 5 and is coaxially sleeved on control lever 53. One end of spring 54 is fixedly connected to the side of mounting bracket 5 and the other end of spring 54 is fixedly connected to control lever 53.

[0026] A sealing gasket 521 is fixedly connected to the end face of the opening of the coaxial cover sleeve 52. The sealing gasket 521 is used to abut against the end face of the first flange 11 or the second flange 12.

[0027] The implementation principle of Example 2 is as follows: A mounting bracket 5 is provided on the first flange 11, and a cover sleeve 52 is provided on the mounting bracket 5. The cover sleeve 52 protects the nuts 31 and nut 3, thereby reducing the possibility of corrosion of the nuts 31 and nut, and thus improving the service life of the nuts 31 and nut 3.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A connection structure for the connection position of a wind turbine foundation jacket support, characterized in that: It includes a first flange (11) installed on the upper part of the pile foundation (1) and a second flange (12) installed on the lower part of the guide frame (2). The first flange (11) has a first through hole, and the second flange (12) has a second through hole corresponding to the first through hole. The first flange (11) is provided with a bolt (3) and a nut (31). The bolt (3) is sequentially installed in the first through hole and the second through hole. The nut (31) is threaded to the bolt (3). A double-layered self-locking washer (4) is provided between the nut (31) and the second flange (12).

2. The connection structure for the connection position of a wind turbine foundation jacket as described in claim 1, characterized in that: The first flange (11) is provided with a mounting bracket (5), and both ends of the mounting bracket (5) are provided with cover sleeves (52). The two cover sleeves (52) are respectively covered on the nuts (31) and bolts (3).

3. The connection structure for the connection position of a wind turbine foundation jacket according to claim 2, characterized in that: The mounting bracket (5) is provided with a locking block (51), and the locking block (51) is provided with a first locking groove (511), which can be locked onto the first flange (11) and the second flange (12).

4. The connection structure for the connection position of a wind turbine foundation jacket as described in claim 3, characterized in that: The cover (52) is equipped with a control lever (53), which slides vertically and is connected to the mounting frame (5).

5. The connection structure for the connection position of a wind turbine foundation jacket as described in claim 4, characterized in that: The mounting bracket (5) is provided with a spring (54) that forces the two cover sleeves (52) to slide toward each other.

6. The connection structure for the connection position of a wind turbine foundation jacket according to claim 2, characterized in that: A sealing gasket (521) is provided on the end face of the opening of the cover sleeve (52), and the sealing gasket (521) is used to abut against the end face of the first flange (11) or the second flange (12).

7. The connection structure for the connection position of a wind turbine foundation jacket as described in claim 5, characterized in that: The spring (54) is coaxially sleeved on the control lever (53). One end of the spring (54) is fixedly connected to the side of the mounting bracket (5), and the other end of the spring (54) is fixedly connected to the control lever (53).

Images