Wind power base fixing structure

Abstract

The utility model discloses a wind power base fixing structure which comprises a tower drum and a supporting base matched with the tower drum. A fixing flange is arranged at the bottom of the tower drum, and a plurality of annularly distributed fixing holes are formed in the fixing flange; a plurality of fixing screws distributed in the same way as the fixing holes are arranged at the top end of the supporting base; a plurality of proofreading fixing plates are arranged on the fixing flange; the supporting base is provided with a reinforcing area, and the reinforcing area is provided with a plurality of fixing and adjusting structures matched with the proofreading and fixing plates. The fixing and adjusting structure carries out installation and adjustment on the tower drum through the proofreading fixing plate. The installation process is simplified, the convenience of construction and the feasibility of construction adjustment are considered, the installation time and the labor cost can be effectively reduced, and the installation efficiency is improved; according to the wind power base, the stress resistance in the rotating direction is enhanced, the stability of the wind power base during mounting and fixing is effectively improved, the influence caused by wind power is reduced, long-term stable operation of a wind generating set is ensured, and the environmental adaptability of the wind power base is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine base fixing, in particular to a wind turbine base fixing structure. Background Art

[0002] The wind turbine base is the base of the wind turbine tower, bearing its entire weight and shouldering all stress conditions including support, earthquake resistance, and strong wind resistance.

[0003] Traditional wind turbine base fixing structures are usually fixed by bolts or welding. During installation, the wind turbine base is usually lifted by a tower crane and then slowly lowered from top to bottom to match the multiple screws on the base at the installation position, and then the nuts are tightened to complete the installation and fixation.

[0004] The traditional fixed structure of the wind turbine base is not conducive to installation. In actual applications, for the installation of the fixed structure, because it is suspended in the air, the bottom of the wind turbine tower will shake and rotate during the installation process. The wind turbine tower has a larger weight and volume, and it is difficult to align the screws with the holes. If rotation occurs during the fixed installation process, it is also difficult to adjust, resulting in a deviation in the final angle facing the wind direction. Therefore, how to further strengthen the fixed structure to improve its stability, durability and safety, while simplifying maintenance work, reducing maintenance costs, facilitating installation and improving installation efficiency is an urgent problem that needs to be solved. Utility Model Content

[0005] The purpose of the utility model is to solve the defects in the prior art and to propose a wind turbine base fixing structure.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A wind turbine base fixing structure comprises a tower and a support base matched with the tower;

[0008] The bottom of the tower is provided with a fixing flange, and a plurality of annular fixing holes are opened inside the fixing flange;

[0009] The top of the support base is provided with a plurality of fixing screws distributed in the same manner as the fixing holes;

[0010] The fixed flange is provided with a plurality of calibration fixing plates;

[0011] The support base is provided with a reinforcement area, and the reinforcement area is provided with a plurality of fixing adjustment structures that cooperate with the calibration fixing plate;

[0012] The fixing and adjusting structure installs and adjusts the tower through the calibration and fixing plate.

[0013] Furthermore, the calibration fixing plate is installed on the top of the fixing flange, and a plurality of the calibration fixing plates equally divide the upper surface of the fixing flange;

[0014] The bottom end of the calibration fixing plate is provided with a plurality of calibration screws matched with the fixing holes, and the side of the calibration fixing plate away from the fixing flange is provided with a fixing sleeve matched with the fixing adjustment structure.

[0015] Furthermore, the fixing sleeve includes a sleeve body connected to the calibration fixing plate, an auxiliary block is provided inside the sleeve body, the auxiliary block can rotate inside the sleeve body, and an auxiliary hole is provided in the middle position of the auxiliary block to cooperate with the fixed adjustment structure.

[0016] Furthermore, a scale bar is provided on the sleeve body, and the scale bar is distributed around the auxiliary block as the center of the circle. The auxiliary hole is an equilateral triangle structure, wherein the auxiliary block is rotated so that the vertex angle of the triangle points to any scale of the scale bar.

[0017] Furthermore, the fixing and adjusting structure includes a plurality of positioning seats and positioning rods located on the reinforcement area, and the shape of the positioning rods matches the shape of the auxiliary holes;

[0018] The positioning rod is inserted into the positioning seat.

[0019] Furthermore, a circular groove is provided in the positioning seat, the bottom rod body of the positioning rod is a cylindrical structure, and the end inserted into the positioning seat is a spherical structure. The positioning rod can move arbitrarily within the support range of the circular groove with the spherical structure as the center.

[0020] Furthermore, a limiting ring is sleeved on the bottom of the positioning rod, the shape of the limiting ring matches the shape of the circular groove, and the limiting ring is located in the circular groove to enable the positioning rod to be perpendicular to the support base.

[0021] Furthermore, the tower is provided with a reinforcement frame located above the fixing flange;

[0022] The calibration fixing plate can be snapped onto the bottom of the reinforcement frame.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The installation process is simplified, the convenience of construction and the feasibility of construction adjustment are taken into consideration, which can effectively reduce the installation time and labor costs and improve the installation efficiency;

[0025] It enhances the force resistance in the direction of rotation, effectively improves the stability of the wind turbine base during installation and fixation, reduces the impact of wind force, ensures the long-term stable operation of the wind turbine generator set, and improves the environmental adaptability of the wind turbine base. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0027] Figure 1 This is a schematic diagram of the overall structure of the wind turbine base fixing structure proposed in the present invention;

[0028] Figure 2 This is a schematic diagram of the expansion of the wind turbine base fixing structure proposed in the present invention;

[0029] Figure 3 This is a structural diagram of the calibration fixing plate of the wind turbine base fixing structure proposed in the present invention;

[0030] Figure 4 This is a structural diagram of the reinforcement frame of the wind turbine base fixing structure proposed in the present invention;

[0031] Figure 5 Schematic diagram of the positioning rod movement in the embodiment of the present application.

[0032] In the figure: 1. Tower; 2. Support base; 3. Fixing flange; 4. Fixing hole; 5. Fixing screw; 6. Alignment fixing plate; 7. Reinforcement area; 8. Fixed adjustment structure; 9. Alignment screw; 10. Fixing sleeve; 11. Sleeve body; 12. Auxiliary block; 13. Auxiliary hole; 14. Positioning seat; 15. Positioning rod; 16. Limiting ring; 17. Reinforcement frame. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] Reference Figure 1-2 , a wind turbine base fixing structure, comprising a tower 1 and a supporting base 2 matched with the tower 1;

[0036] The bottom of the tower 1 is provided with a fixing flange 3, which is fixed to the tower 1 by welding, and a plurality of annular fixing holes 4 are opened inside the fixing flange 3;

[0037] The top of the support base 2 is provided with a plurality of fixing screws 5 distributed in the same manner as the fixing holes 4. When installing and fixing, the fixing screws 5 pass through the corresponding fixing holes 4 and tighten the corresponding nuts to complete the installation and fixing;

[0038] The fixing flange 3 is provided with a plurality of calibration fixing plates 6, which are used to provide calibration and reinforcement performance during the installation and fixing of the tower 1;

[0039] The support base 2 is provided with a reinforcement area 7. The middle position of the support base 2 and the reinforcement area 7 are stepped. The reinforcement area 7 is lower than the highest surface of the support base 2. The reinforcement area 7 is an area of ​​the support base 2 that is larger than the fixing flange 3. The reinforcement area 7 is provided with a plurality of fixing adjustment structures 8 that cooperate with the calibration fixing plates 6. The number of the fixing adjustment structures 8 corresponds to the number of the calibration fixing plates 6.

[0040] Reference Figure 1-5 In one embodiment, the number of the fixed adjustment structure 8 and the calibration fixing plate 6 is not less than 2;

[0041] The fixing and adjusting structure 8 is used to install and adjust the tower 1 through the calibration and fixing plate 6 .

[0042] In a specific embodiment of the present application, the calibration fixing plate 6 is installed at the top of the fixed flange 3, and a plurality of the calibration fixing plates 6 equally divide the upper surface of the fixed flange 3, wherein the side of the calibration fixing plate 6 away from the fixed flange 3 is a planar structure. When the calibration fixing plates 6 are installed on the fixed flange 3, a rectangular plate is formed, and the sides of two calibration fixing plates 6 that are attached to each other form a 90° angle, and the center line of the calibration fixing plate 6 corresponds to the center position of the tower 1;

[0043] The bottom end of the calibration fixing plate 6 is provided with a plurality of calibration screws 9 that match the fixing holes 4. The calibration fixing plate 6 is inserted into the fixing holes 4 through the calibration screws 9 at the bottom end so that it is installed on the surface of the fixing flange 3. During the installation of the tower 1, the fixing screws 5 will slowly enter the fixing holes 4. When the calibration and installation are completed, the fixing screws 5 will be adjusted to a specific distance from the fixed control or completely ejected.

[0044] A fixing sleeve 10 that matches the fixing adjustment structure 8 is provided on the side of the calibration fixing plate 6 away from the fixing flange 3 . The fixing adjustment structure 8 is assisted in installation when the wind turbine base is fixed by the fixing sleeve 10 .

[0045] Reference Figure 1-5 In a specific embodiment of the present application, the fixing sleeve 10 includes a sleeve body 11 connected to the proofreading fixing plate 6, and an auxiliary block 12 is provided inside the sleeve body 11. The auxiliary block 12 can rotate inside the sleeve body 11, and an auxiliary hole 13 that cooperates with the fixed adjustment structure 8 is opened in the middle position of the auxiliary block 12. The auxiliary hole 13 can be flexibly adjusted by rotating so that it can be quickly proofread and matched with the fixed adjustment structure 8.

[0046] The sleeve 11 is provided with a scale bar, which is distributed around the auxiliary block 12 as the center of the circle, and the auxiliary hole 13 is an equilateral triangle structure, wherein the auxiliary block 12 is rotated to make the vertex angle of the triangle point to any scale of the scale bar. It is not difficult to see from the above design that because the auxiliary hole 13 is a triangular structure, by pre-setting the position of the auxiliary hole 13 and the corresponding direction of the auxiliary hole 13, when the vertex angle of the triangle points to the center of the tower 1, that is, at the 0 scale, it is the correct installation and fixing position. After fixation, if the triangle points to other scales, it can be judged whether the tower 1 deviates from the final safe position in its current state. Similarly, during installation, it can be judged whether the tower 1 needs to be rotated and adjusted by pointing to different scales to ensure stable installation.

[0047] The fixing and adjusting structure 8 includes a plurality of positioning seats 14 and positioning rods 15 located on the reinforcement area 7 , and the shape of the positioning rods 15 matches the shape of the auxiliary holes 13 ;

[0048] It is not difficult to see from the above design that during installation, the positioning rod 15 will be inserted into the auxiliary hole 13 to limit the swing range of the tower 1 before it is fully installed. After two or more positioning rods 15 are inserted into the auxiliary hole 13, the rotation and shaking of the tower 1 can be limited, and the fixing performance in this aspect can be enhanced during use.

[0049] The positioning rod 15 is inserted into the positioning seat 14. The highest surface of the positioning seat 14 is lower than the highest surface of the support seat. After the tower 1 is installed, a pad is welded on the positioning seat 14 to adjust the ground level after the tower 1 is fixed and installed, so as to ensure the fixity during operation.

[0050] A circular groove is provided in the positioning seat 14, and the bottom rod body of the positioning rod 15 is a cylindrical structure, and the end inserted into the positioning seat 14 is a spherical structure. The positioning rod 15 can move arbitrarily within the support range of the circular groove with the spherical structure as the center. It is not difficult to see that the positioning rod 15 can shake and swing left and right within a certain range, which can help the positioning rod 15 to be inserted into the auxiliary hole 13. At the same time, because the adjustment fixing rod ring lamp is distributed on the support seat, in the process of fixed installation, after the positioning rod 15 is inserted into the auxiliary hole 13, a rotational traction force is provided to the tower 1 by shaking or swinging, so that the tower 1 is rotated slightly to adjust the direction of the wind blade after the final installation. In addition, during the installation process, if there is a deviation between the fixing screw 5 and the small accuracy of the fixing hole 4, it can be fine-tuned in this way to facilitate adjustment to the position most suitable for installation and maintaining fixed stress.

[0051] Reference Figure 1-5 In a specific embodiment of the present application, a limiting ring 16 is provided on the bottom of the positioning rod 15. The shape of the limiting ring 16 matches the shape of the circular groove. The limiting ring 16 is located in the circular groove to enable the positioning rod 15 to be vertical to the support base 2. It can be seen from the above design that after the adjustment of the tower 1 is completed, the positioning rod 15 is fixed in a vertical state by the limiting ring (16), so that the tower 1 can be positioned and installed in a vertical state.

[0052] The tower 1 is provided with a reinforcement frame 17 located above the fixing flange 3. The reinforcement frame 17 is provided with a plurality of functional holes through which the positioning rods 15 can pass. The calibration fixing plate 6 can be snapped onto the bottom of the reinforcement frame 17.

[0053] After the tower 1 is fully pressed down and installed, the proofreading and fixing plate 6 will be engaged at the bottom of the reinforcement frame 17. Due to the polygonal structure of the proofreading and fixing plate 6, it can provide fixed support for radial force and rotational force during use, thereby enhancing the fixing performance of the tower 1. At the same time, the positioning rod 15 will extend through the functional hole to the top of the reinforcement frame 17, and can be fixed for the second time on the surface of the reinforcement frame 17 by screwing the nut or other corresponding adaptation methods, thereby enhancing the fixation of the entire structure in multiple degrees of freedom directions.

[0054] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wind turbine base fixing structure, comprising a tower (1) and a supporting base (2) matched with the tower (1), characterized in that: A fixing flange (3) is provided at the bottom of the tower (1), and a plurality of fixing holes (4) distributed in an annular pattern are provided inside the fixing flange (3); The top end of the support base (2) is provided with a plurality of fixing screws (5) distributed in the same manner as the fixing holes (4); The fixing flange (3) is provided with a plurality of calibration fixing plates (6); The support base (2) is provided with a reinforcement area (7), and the reinforcement area (7) is provided with a plurality of fixing adjustment structures (8) that cooperate with the calibration fixing plate (6); The fixing adjustment structure (8) installs and adjusts the tower (1) through the calibration fixing plate (6).

2. The wind turbine base fixing structure according to claim 1, characterized in that: The calibration fixing plate (6) is installed on the top of the fixing flange (3), and a plurality of the calibration fixing plates (6) equally divide the upper surface of the fixing flange (3); The bottom end of the calibration fixing plate (6) is provided with a plurality of calibration screws (9) that match the fixing holes (4), and the side of the calibration fixing plate (6) away from the fixing flange (3) is provided with a fixing sleeve (10) that matches the fixing adjustment structure (8).

3. The wind turbine base fixing structure according to claim 2, characterized in that: The fixing sleeve (10) comprises a sleeve body (11) connected to the calibration fixing plate (6); an auxiliary block (12) is provided inside the sleeve body (11); the auxiliary block (12) is rotatable inside the sleeve body (11); an auxiliary hole (13) is provided in the middle of the auxiliary block (12) and is matched with the fixing adjustment structure (8).

4. The wind turbine base fixing structure according to claim 3, characterized in that: The sleeve (11) is provided with a scale bar, which is distributed around the auxiliary block (12) as the center of the circle, and the auxiliary hole (13) is an equilateral triangle structure, wherein the auxiliary block (12) is rotated so that the vertex angle of the triangle points to any scale of the scale bar.

5. The wind turbine base fixing structure according to claim 4, characterized in that: The fixing adjustment structure (8) comprises a plurality of positioning seats (14) and positioning rods (15) located on the reinforcement area (7), and the shape of the positioning rods (15) matches the shape of the auxiliary holes (13); The positioning rod (15) is inserted into the positioning seat (14).

6. The wind turbine base fixing structure according to claim 5, characterized in that: A circular groove is provided in the positioning seat (14), the bottom rod body of the positioning rod (15) is a cylindrical structure, and the end inserted into the positioning seat (14) is a spherical structure. The positioning rod (15) moves arbitrarily within the support range of the circular groove with the spherical structure as the center of the circle.

7. The wind turbine base fixing structure according to claim 6, characterized in that: A limiting ring (16) is sleeved on the bottom of the positioning rod (15), and the shape of the limiting ring (16) matches the shape of the circular groove. The limiting ring (16) is located in the circular groove and can make the positioning rod (15) perpendicular to the support base (2).

8. The wind turbine base fixing structure according to claim 7, characterized in that: The tower (1) is provided with a reinforcement frame (17) located above the fixing flange (3); The calibration fixing plate (6) can be engaged with the bottom of the reinforcement frame (17).

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