High-strength wind driven generator support

Abstract

The utility model relates to the technical field of wind driven generator supports, in particular to a high-strength wind driven generator support which comprises a tower body, the tower body is formed by coaxially connecting a plurality of tower sections, a step connecting sleeve structure is arranged between every two adjacent tower sections, and a stabilizing structure is arranged at the bottom end of the tower body. The stabilizing structure comprises a foundation flange fixedly connected to the bottom end of the tower body and a plurality of anchoring rods welded to the bottom end of the foundation flange and obliquely extending downwards in a circumferential radial shape, conical teeth are fixedly connected to the outer walls of the anchoring rods, a regular dodecagon-like cylinder is formed by welding arc-shaped steel plates, and dodecagon edges damage airflow. Compared with a traditional circular tower drum, the wind vortex-induced vibration resistance and the wind resistance are improved, lateral wind loads can be converted into axial tension and compression stress through the inner rib plates, and propagation of flexural waves of a shell is blocked; the stress at the joint of the tower sections can be dispersed through the stepped connecting sleeve structure, and the service life of the tower body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine support technology, and specifically discloses a high-strength wind turbine support. Background Technology

[0002] Wind turbine support structures are an important component of wind power systems, primarily serving to support and secure the various parts of the wind turbine. They typically consist of a tower, rotor support, and other parts. The tower, the supporting structure of the wind turbine, is mainly made of steel or concrete, providing the necessary support height and stability. The tower also contains auxiliary facilities such as cables and platforms.

[0003] Traditional wind turbine towers are prone to low-frequency vortex-induced vibrations under strong winds, have insufficient resistance to crosswinds, severe stress concentration at the flange connections between tower sections, making them prone to breakage, and have weak foundation uplift resistance. Therefore, a high-strength wind turbine support is needed to solve this problem. Utility Model Content

[0004] This utility model proposes a high-strength wind turbine support, which can stabilize the tower and achieve the effect of resisting uplift; and compared with the traditional circular tower, it can improve the resistance to wind vortex-induced vibration and improve wind resistance performance, converting lateral wind load into axial tensile and compressive stress, and extending the service life of the tower.

[0005] This utility model is implemented as follows: a high-strength wind turbine support includes a tower body, which is composed of multiple tower sections coaxially connected, with a stepped connecting sleeve structure between adjacent tower sections, and a stabilizing structure at the bottom of the tower body.

[0006] The stabilizing structure includes a base flange fixedly connected to the bottom of the tower body, and multiple anchor rods welded to the bottom of the base flange and extending obliquely downward in a circumferential radial pattern. The outer wall of the anchor rods is fixedly connected with conical teeth.

[0007] The tower body is welded from 12 arc-shaped steel plates into a regular dodecagonal cylindrical body, and the interior of the tower body is provided with X-shaped inner ribs;

[0008] The stepped connecting sleeve structure includes an upper flange and a lower flange respectively disposed on opposite sides of adjacent tower sections, and a double-bevel transition ring is provided between the upper flange and the lower flange.

[0009] As a preferred embodiment of the high-strength wind turbine support of this utility model, the bottom end of the upper flange has a 30° slope, and the lower flange has a 30° chamfer.

[0010] As a preferred embodiment of the high-strength wind turbine support of this utility model, a weight-reducing hole is provided at the intersection of the inner ribs.

[0011] As a preferred embodiment of the high-strength wind turbine support of this utility model, threaded holes are provided through the edges of the upper flange, the lower flange, and the transition ring.

[0012] As a preferred embodiment of the high-strength wind turbine support of this utility model, the bottom end of the anchor rod is pointed.

[0013] The beneficial effects of this utility model are:

[0014] 1. By using anchor rods that are set at an angle downwards and cooperating with conical teeth, a spatial truss effect can be formed in the concrete to achieve the effect of resisting uplift, thus stabilizing the tower body and achieving wind resistance.

[0015] 2. The dodecagonal cylindrical body is formed by welding arc-shaped steel plates. The dodecagonal edges disrupt the airflow, causing the airflow to move away from the natural frequency of the tower. Compared with the traditional circular tower, it improves the ability to resist wind vortex-induced vibration and improves wind resistance. The inner ribs can convert lateral wind loads into axial tensile and compressive stresses, blocking the propagation of buckling waves in the outer shell.

[0016] 3. The stepped connection sleeve structure can disperse the stress at the tower section connection and extend the service life of the tower. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a front sectional view of a high-strength wind turbine support according to the present invention.

[0019] Figure 2 This is a top view of the tower structure of this utility model.

[0020] Figure 3 This is a structural diagram of the stepped connecting sleeve of this utility model.

[0021] The markings in the diagram are: 1. Tower body; 2. Foundation flange; 201. Anchor rod; 202. Tapered tooth; 3. Tower section; 301. Upper flange; 302. Transition ring; 303. Lower flange; 4. Inner rib plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0023] Please see Figure 1-3 A high-strength wind turbine support includes a tower body 1, which is composed of multiple tower sections 3 coaxially connected. A stepped connecting sleeve structure is provided between adjacent tower sections 3, and a stabilizing structure is provided at the bottom of the tower body 1.

[0024] The stabilizing structure includes a base flange 2 fixedly connected to the bottom end of the tower body 1, and multiple anchor rods 201 welded to the bottom end of the base flange 2 and extending obliquely downward in a circumferential radial pattern. The outer wall of the anchor rods 201 is fixedly connected with conical teeth 202.

[0025] The tower body 1 is welded from 12 arc-shaped steel plates into a regular dodecagonal cylindrical body, and the interior of the tower body 1 is provided with X-shaped inner ribs 4;

[0026] The stepped connection sleeve structure includes an upper flange 301 and a lower flange 303 respectively disposed on opposite sides of adjacent tower sections 3, and a double-bevel transition ring 302 is disposed between the upper flange 301 and the lower flange 303.

[0027] In this embodiment: by using the anchor rod 201 and the conical tooth 202 set at an angle downwards, a spatial truss effect can be formed in the concrete to achieve the effect of resisting uplift, thereby stabilizing the tower body 1 and achieving wind resistance.

[0028] The dodecagonal cylindrical body is formed by welding 12 arc-shaped steel plates. The dodecagonal edges disrupt the airflow, causing the airflow to move away from the natural frequency of the tower. Compared with the traditional circular tower, it improves the ability to resist wind vortex-induced vibration and improves wind resistance. The inner rib plate 4 can convert the lateral wind load into axial tensile and compressive stress, blocking the propagation of buckling waves in the outer shell.

[0029] The stepped connecting sleeve structure can disperse the stress at the tower section connection and extend the service life of the tower body 1.

[0030] As a technical optimization of this utility model, the bottom end of the upper flange 301 has a 30° slope, and the lower flange 303 has a 30° chamfer.

[0031] In this embodiment: the bottom end of the upper flange 301 has a 30° slope and the lower flange 303 has a 30° chamfer, forming a 30° conical surface that converts horizontal shear force into normal compressive stress, thereby enhancing shear resistance.

[0032] As a technical optimization of this utility model, a weight reduction hole is provided at the intersection of the inner rib plate 4.

[0033] In this embodiment, the moment of inertia of the tower at 1 / 3 of its height can be reduced by using the weight reduction hole.

[0034] As a technical optimization of this utility model, threaded holes are provided through the edges of the upper flange 301, the lower flange 303, and the transition ring 302.

[0035] In this embodiment: by opening threaded holes, the upper flange 301, the lower flange 303, and the transition ring 302 can be connected and fixed by bolts to prevent misalignment between the rings.

[0036] As a technical optimization of this utility model, the bottom end of the anchor rod 201 is sharp.

[0037] In this embodiment, the bottom end of the anchor rod 201 is pointed to facilitate the rapid entry of the tower body 1 into the concrete, thereby increasing the density of the concrete.

[0038] The working principle and usage process of this utility model: By using the anchor rod 201 and the conical tooth 202 set at an inclined downward, a spatial truss effect can be formed in the concrete to achieve the effect of resisting pull-out, thereby stabilizing the tower body 1 and achieving wind resistance.

[0039] The dodecagonal cylindrical body is formed by welding 12 arc-shaped steel plates. The dodecagonal edges disrupt the airflow, causing the airflow to move away from the natural frequency of the tower. Compared with the traditional circular tower, it improves the ability to resist wind vortex-induced vibration and improves wind resistance. The inner rib plate 4 can convert the lateral wind load into axial tensile and compressive stress, blocking the propagation of buckling waves in the outer shell.

[0040] The stepped connecting sleeve structure can disperse the stress at the tower section connection and extend the service life of the tower body 1.

[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A high-strength wind turbine support frame, comprising a tower body (1), characterized in that: The tower body (1) is composed of multiple tower sections (3) connected coaxially, and a stepped connecting sleeve structure is provided between adjacent tower sections (3). A stabilizing structure is provided at the bottom of the tower body (1). The stabilizing structure includes a base flange (2) fixedly connected to the bottom end of the tower body (1), and multiple anchor rods (201) welded to the bottom end of the base flange (2) and extending obliquely downward in a circumferential radial pattern. The outer wall of the anchor rods (201) is fixedly connected with conical teeth (202). The tower body (1) is welded into a regular dodecagonal cylindrical body by 12 arc-shaped steel plates, and the interior of the tower body (1) is provided with an X-shaped inner rib plate (4). The stepped connecting sleeve structure includes an upper flange (301) and a lower flange (303) respectively disposed on opposite sides of adjacent tower sections (3), and a double-sided bevel transition ring (302) is provided between the upper flange (301) and the lower flange (303).

2. The high-strength wind turbine support according to claim 1, characterized in that: The bottom end of the upper flange (301) has a 30° slope, and the lower flange (303) has a 30° chamfer.

3. A high-strength wind turbine support according to claim 1, characterized in that: Weight reduction holes are provided at the intersection of the inner ribs (4).

4. A high-strength wind turbine support according to claim 1, characterized in that: Threaded holes are provided at the edges of the upper flange (301), the lower flange (303), and the transition ring (302).

5. A high-strength wind turbine support according to claim 1, characterized in that: The bottom end of the anchor rod (201) is pointed.

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