A wind power tower installation platform

Abstract

This utility model relates to a wind turbine tower installation platform, which solves the problem of high installation accuracy requirements for existing wind turbine towers. It includes a support platform assembly with four columns for connecting the wind turbine tower. A connecting assembly is provided at the upper end of each column. The connecting assembly includes bolt assemblies, a base plate eccentrically arranged on the bolt assemblies, L-shaped corner plates located around the base plate and corresponding to the corners of the columns, and a cover plate covering the upper surface of the L-shaped corner plates. A structural hole is formed in the center of the cover plate to allow the bolt assembly to pass through. The base plate is sandwiched between the cover plate and each L-shaped corner plate. This utility model is applied to the installation of wind turbine towers.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment, specifically to a wind turbine tower installation platform. Background Technology

[0002] The wind turbine tower is a component connecting the wind turbine generator and the foundation. Its main function is to support the nacelle and blades of the wind turbine and convert wind energy into electrical energy. The tower is typically made of high-strength steel, concrete, or composite materials. Its height, structure, and shape are customized according to the power requirements of the wind turbine generator and the installation environment. During construction, the foundation structure is laid out at the predetermined installation location. During installation, after the foundation construction is completed, the tower is hoisted from the transport ship onto the foundation pile frame. A quick connection is achieved using plug-in components and snap-fit ​​structures. The position of the plug-in components is adjusted by turning a handwheel to achieve a secure connection. Finally, an overall quality inspection is conducted to ensure the reliability and safety of the connection between the tower and the foundation.

[0003] The existing installation of wind turbine towers and pile frames requires high precision in the plug-in components or snap-fit ​​structures. Even slight errors during construction can easily lead to inaccurate installation positions or even make installation impossible, thus affecting the construction progress. Utility Model Content

[0004] Therefore, this utility model provides a wind turbine tower installation platform, which solves the problem of high installation accuracy requirements for existing wind turbine towers.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A wind turbine tower installation platform includes a support platform assembly. The support platform assembly has four columns for connecting the wind turbine tower. The upper end of each column is provided with a connecting assembly. The connecting assembly includes a bolt assembly, a base plate eccentrically arranged on the bolt assembly, an L-shaped corner plate disposed on the periphery of the base plate and corresponding to the corner of the column, and a cover plate covering the upper surface of the L-shaped corner plate. The cover plate has a structural hole in its center for the bolt assembly to pass through the cover plate. The base plate is sandwiched between the cover plate and each L-shaped corner plate.

[0007] Preferably, the column is provided with clips on both sides symmetrically, one end of the clip is attached to the upper surface of the cover plate and the other end is attached to the side surface of the column below the L-shaped corner plate to clamp and fix the cover plate.

[0008] Preferably, each of the columns is provided with reinforcing ribs on its periphery.

[0009] Preferably, the structural hole is a rounded rectangular structure.

[0010] Preferably, a reinforcing nut is screwed onto one end of the bolt assembly that connects to the base plate.

[0011] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0012] This technical solution achieves precise adjustment and ensures vertical installation of the bolt assembly through the eccentric arrangement of the substrate and the sandwich structure of the cover plate-L-shaped corner plate.

[0013] Eccentric displacement adjustment: The non-concentric design of the base plate centerline and the bolt assembly axis allows for fine adjustment of the bolt assembly in the horizontal direction, effectively compensating for manufacturing errors or positional deviations caused by foundation settlement during wind turbine tower installation, and ensuring the vertical accuracy of the tower.

[0014] Sandwich structure stability: The substrate is sandwiched between the cover plate and the L-shaped corner plate, forming a rigid constraint to prevent the substrate from deflecting or loosening during adjustment. At the same time, the precise positioning of the L-shaped corner plate and the corner of the column ensures the uniformity of load transfer and significantly improves the shear and bending resistance of the connecting components.

[0015] Verticality assurance: The eccentric structure uses geometric constraints to ensure that the bolt assembly can still be subjected to vertical force after horizontal adjustment, avoiding the tilting stress caused by errors in traditional rigid connections, and ensuring the long-term stability of the tower after installation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the platform according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the connecting component in an embodiment of the present utility model;

[0018] Figure 3 This is an exploded structural diagram of the connecting component according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the mounting screen structure on the substrate;

[0020] Figure 5 This is a reference diagram for the application of this utility model.

[0021] Reference numerals: 1. Support platform assembly; 2. Column; 21. Reinforcing rib; 3. Connecting assembly; 31. Bolt assembly; 32. Base plate; 33. L-shaped corner plate; 34. Cover plate; 341. Structural hole; 35. Clip; 36. Reinforcing nut. Detailed Implementation

[0022] The following will describe the implementation of this utility model in detail with reference to specific embodiments, so that the process of how this utility model uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] Example

[0024] refer to Figures 1 to 5 A wind turbine tower installation platform includes a support platform assembly 1. The support platform assembly 1 has four columns 2 for connecting the wind turbine tower. A connecting assembly 3 is provided at the upper end of each column 2. The connecting assembly 3 includes a bolt assembly 31, a base plate 32 eccentrically disposed on the bolt assembly 31, an L-shaped corner plate 33 disposed around the base plate 32 and corresponding to the corners of the columns 2, and a cover plate 34 covering the upper surface of the L-shaped corner plate 33. A structural hole 341 is provided in the center of the cover plate 34 for the bolt assembly 31 to pass through. The cover plate 34, with the base plate 32 sandwiched between the cover plate 34 and each L-shaped corner plate 33; structurally, the structural hole 341 is a rounded rectangular structure, which combines adjustment function and structural safety. The rectangular corners allow the bolt assembly 31 to move horizontally within a range of 35mm, adapting to the installation requirements of different specifications of towers; the rounded transition avoids stress concentration at the hole edge during adjustment, prevents crack propagation, and extends the service life of the cover plate 34; the rounded structure maintains uniform force during bolt adjustment, which is especially suitable for compensating for small displacements caused by temperature changes or mechanical vibrations during high-altitude installation.

[0025] This technical solution achieves precise adjustment and vertical installation assurance of the bolt assembly 31 through the eccentric arrangement of the base plate 32 and the sandwich structure of the cover plate 34-L-shaped corner plate 33.

[0026] Eccentric displacement adjustment: The non-concentric design of the center line of the base plate 32 and the axis of the bolt assembly 31 allows the bolt assembly 31 to be finely adjusted in the horizontal direction, effectively compensating for the positional deviation caused by manufacturing errors or foundation settlement during the installation of the wind turbine tower, and ensuring the vertical accuracy of the tower.

[0027] Sandwich structure stability: The base plate 32 is sandwiched between the cover plate 34 and the L-shaped corner plate 33, forming a rigid constraint to prevent the base plate 32 from deflecting or loosening during adjustment. At the same time, the precise positioning of the L-shaped corner plate 33 and the corner of the column 2 ensures the uniformity of load transfer and significantly improves the shear and bending resistance of the connecting component 3.

[0028] Verticality assurance: The eccentric structure, through geometric constraints, ensures that the bolt assembly 31 can still be subjected to vertical force after horizontal adjustment, avoiding the tilting stress caused by errors in traditional rigid connections, and ensuring the long-term stability of the tower after installation.

[0029] In this embodiment, locking clips 35 are symmetrically arranged on both sides of the column 2. One end of each locking clip 35 is engaged with the upper surface of the cover plate 34, and the other end is engaged with the side surface of the column 2 below the L-shaped corner plate 33 to clamp and fix the cover plate 34. The locking clip 35 structure forms a double fixing mechanism through the bidirectional fixing of the cover plate 34 and the side surface of the column 2.

[0030] Anti-loosening design: One end of the clip 35 is clipped onto the upper surface of the cover plate 34, and the other end is embedded into the side surface of the column 2, which effectively restricts the vertical displacement of the cover plate 34 under vibration or wind load, and avoids loss of preload of bolt assembly 31 due to slippage of the cover plate 34.

[0031] Overall structural integrity is improved: the card 35 works together with the L-shaped corner plate 33 and the base plate 32 to tightly connect the cover plate 34 to the side surface of the column 2, forming a closed force ring and enhancing the fatigue resistance of the connecting component 3 under complex working conditions.

[0032] In this embodiment, each of the columns 2 is provided with reinforcing ribs 21 on its periphery. The longitudinal reinforcing ribs 21 on the periphery of the column 2 are arranged on three sides of the column 2 (to avoid extending beyond the support platform assembly 1), which significantly optimizes the structural mechanical performance.

[0033] Bending and torsion strengthening: The ribs are distributed at intervals along the height of column 2 to form a multi-span continuous beam structure, which effectively resists the bending moment and torque transmitted by the wind turbine tower. Especially under extreme conditions such as typhoons or earthquakes, the ribs can disperse concentrated stress and prevent local instability of column 2.

[0034] Balance between lightweight and high stiffness: The rib design increases structural strength while avoiding material redundancy through reasonable layout, achieving the optimal match between weight and load-bearing capacity.

[0035] In this embodiment, a reinforcing nut 36 is screwed onto one end of the bolt assembly 31 that connects to the base plate 32. The reinforcing nut 36 screwed onto the end of the bolt assembly 31 significantly improves connection reliability by increasing the contact area. The bearing surface diameter of the reinforcing nut 36 is 30% larger than that of a standard nut, effectively dispersing the compressive stress at the connection between the base plate 32 and the bolt, avoiding local plastic deformation, and is particularly suitable for anti-slip requirements in high preload scenarios. After increasing the contact area, the friction between the nut and the base plate 32 increases, and with the bolt anti-loosening structure (such as double nuts or locking washers), the risk of loosening during long-term operation of the wind farm can be significantly reduced.

[0036] This technical solution solves the problems of low adjustment accuracy and poor structural stability of traditional wind turbine tower installation platforms through a three-in-one design of "adjustment-fixation-reinforcement". The eccentric base plate 32 and the rounded rectangular hole achieve millimeter-level precise adjustment, the clamp 35 and the reinforcing rib 21 ensure structural integrity under extreme working conditions, and the reinforcing nut 36 improves the reliability of the connection surface. The overall solution controls the installation verticality error within ±2mm, increases the structural load-bearing capacity by more than 40%, significantly extends the service life of the wind turbine tower, and reduces operation and maintenance costs.

[0037] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A wind turbine tower installation platform comprising a support platform assembly (1) on which four columns (2) for connecting a wind turbine tower are arranged, characterized in that: The upper end of the column (2) is provided with a connecting component (3). The connecting component (3) includes a bolt assembly (31), a base plate (32) eccentrically arranged on the bolt assembly (31), an L-shaped corner plate (33) disposed on the periphery of the base plate (32) and corresponding to the corner of the column (2), and a cover plate (34) covering the upper surface of the L-shaped corner plate (33). The cover plate (34) has a structural hole (341) in the center for the bolt assembly (31) to pass through the cover plate (34). The base plate (32) is sandwiched between the cover plate (34) and each L-shaped corner plate (33).

2. A wind turbine tower installation platform according to claim 1, characterised in that: The column (2) is symmetrically provided with card blocks (35) on both sides.

3. The wind turbine tower installation platform according to claim 1, characterized in that: Each of the columns (2) is provided with reinforcing ribs (21) around its perimeter.

4. A wind turbine tower installation platform according to claim 1, 2, or 3, characterized in that: The structural hole (341) is a rounded rectangular structure.

5. A wind turbine tower installation platform according to claim 1, 2, or 3, characterized in that: A reinforcing nut (36) is screwed onto one end of the bolt assembly (31) that is connected to the base plate (32).

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