Reinforcing device for wind power tower

Abstract

The utility model belongs to the technical field of wind power tower installation, and discloses a reinforcing device for a wind power tower, which comprises a reinforcing ring used for being sleeved on the periphery of the tower, and the inner diameter of the reinforcing ring is adjustable; the connecting plate is detachably and fixedly connected with a flange fixedly connected with the tower; and the reinforcing component comprises a reinforcing ring, a reinforcing rib and a first connecting part, one part of the reinforcing component is connected with the periphery of the tower, and one end of the reinforcing component is fixedly connected with the connecting plate. The device is connected with the tower according to the hoop principle, the butt weld of the tower and the flange is reinforced, part of bearing load is shared, the safety coefficient of the defect position is increased, the service life of the defect position is prolonged, and the tower can operate normally.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power tower installation, and relates to a reinforcement device for a wind power tower. Background Art

[0002] At present, the circular tubular steel structure tower is the mainstream form of wind turbines, and its key safety position is the circumferential weld position, especially the flange and tower butt weld. Under existing conditions, when defects are found in the factory, they are usually repaired, and when they are outside the factory, the tower is usually replaced. At this time, the losses in all aspects are very large. In order to solve this problem, publication numbers such as CN213742615U and CN111749527A mainly disclose making a circle of slide grooves on the tower and connecting it to the ground anchor with ropes, which is equivalent to the principle of a cable-type tower. This method is only suitable for small tower installations, and requires a large working area, and the connection position needs to be set in advance on the tower. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a reinforcement device for a wind power tower.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is to provide a reinforcement device for a wind power tower, which includes:

[0005] A reinforcement ring, used for being sleeved on the outer periphery of the tower, wherein the inner diameter of the reinforcement ring is adjustable;

[0006] A connecting plate, detachably fixedly connected to a flange fixedly connected to the tower;

[0007] The reinforcement component includes a reinforcement ring, reinforcement ribs and a first connection portion, a portion of which is connected to the outer periphery of the tower, and one end of which is fixedly connected to the connection plate.

[0008] According to the present invention, further, the reinforcement ring includes two semi-annular combination parts, and the two ends of the combination parts are formed with second connection parts pointing to the relatively outward sides. The second connection parts of the two combination parts are relatively fixed to form a cavity with an outer periphery for accommodating the tower.

[0009] According to the present invention, further, the second connecting parts that are opposite to each other are fixedly connected by pre-tightening bolts, and the degree of fit between the two combined parts can be adjusted by tightening or loosening the pre-tightening bolts.

[0010] According to the utility model, further, the reinforcement component includes a plurality of reinforcement ribs equidistantly distributed on the periphery of the reinforcement ring and extending away from the reinforcement ring, and the distal end of the reinforcement rib is fixedly connected with a first connection portion, and the first connection portion is fixedly connected to the connecting plate.

[0011] According to the present invention, further, the first connecting portion is provided with a positioning hole, and the connecting bolt is fixedly connected to the connecting plate through the positioning hole.

[0012] According to the present invention, further, the connecting plates are multiple pieces, which are spliced together to form a ring.

[0013] According to the utility model, further, the surface of the connecting plate near the end has an opening corresponding to the first connecting part, and the first connecting part is fixedly connected to the contact point of the two connecting plates. A part of the first connecting part is connected to one of the connecting plates, and the other part is connected to the other connecting plate in contact with it, thereby realizing the connection of the two connecting plates.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model adopts the hoop principle to connect with the tower, strengthens the butt weld between the tower and the flange, shares part of the bearing load, improves the safety factor and service life of the defective position, and enables the normal operation of the tower.

[0016] 2. The utility model is suitable for circular tubular towers with a small diameter and thickness ratio. It can be implemented on the installed tower according to needs, which improves the convenience of use and reduces the reinforcement area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a reinforcement ring of a reinforcement device for a wind power tower according to the present invention;

[0018] Figure 2 This is a structural diagram of the reinforcement component of the present utility model;

[0019] Figure 3 This is a structural diagram of one of the connecting plates of the present invention;

[0020] Figure 4 This is a reference schematic diagram of a reinforcement device for a wind power tower according to the present invention.

[0021] In the accompanying drawings,

[0022] 1-reinforcement ring, 11-reinforcement rib, 111-first connecting part, 12-combination part, 121-second connecting part, 2-connecting plate, 3-pre-tightening bolt, 4-connecting bolt, 5-tower. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that such equivalents also fall within the scope of the claims appended hereto.

[0024] like Figure 1-Figure 4 As shown, the embodiment of the present application discloses a reinforcement device for a wind turbine tower, which is used to reinforce the butt weld between the flange and the tower 5, bear part of the load, and improve the safety factor and service life of the defective position. The device includes a reinforcement ring 1 that is mounted on the outer periphery of the tower 5 weld. The reinforcement ring 1 is a circular ring with an adjustable inner diameter so that it can be used for towers 5 with different outer diameters. The outer periphery of the reinforcement ring 1 is evenly distributed with multiple reinforcing ribs 11 extending away from the reinforcement ring 1. The distal end of the reinforcing rib 11 is fixedly connected to a first connecting portion 111. The bottom surface of the first connecting portion 111 is parallel to the ground. The first connecting portion 111 is provided with a positioning hole. The connecting bolt 4 is fixedly connected to the connecting plate 2 through the positioning hole. The connecting plate 2 is fixedly connected to the flange fixed to the tower 5. The connecting plate 2 is annular, and its size and specifications match those of the flange. The connecting plate 5 and the flange are fixedly connected by tower bolts.

[0025] Specifically, the surface of the connecting plate 2 is provided with multiple groups of openings corresponding to the positioning holes on the first connecting portion 11, which facilitates the positioning and fixing connection of the connecting bolts 4. Preferably, the connecting plate 2 is composed of multiple pieces, which are spliced together to form an annular connecting plate. The split structure facilitates installation and subsequent maintenance. The surface of the connecting plate 2 near the end has openings corresponding to the first connecting portion 11. The first connecting portion 111 is fixedly connected to the contact point of the two connecting plates 2. A portion of the first connecting portion 111 is connected to one of the connecting plates 2, and the other portion is connected to the other connecting plate 2 with which it contacts, thereby connecting the two connecting plates 2.

[0026] In this embodiment, the reinforcement ring 1 includes two semi-circular combined portions 12, each of which has a second connecting portion 121 pointing outwards. The second connecting portions 121 of the two semi-circular combined portions are fixed relative to each other, forming a cavity with a periphery for accommodating the tower 5. Preferably, the two opposing second connecting portions 121 are fixedly connected by a pre-tightening bolt 3. By tightening or loosening the pre-tightening bolt 3, the fit of the two combined portions 12 is adjusted, that is, the inner diameter of the reinforcement ring 1 is adjusted. The degree of tightening of the pre-tightening bolt 3 is adjusted according to the different outer diameters of the tower 5, thereby expanding the applicability of the reinforcement ring 1.

[0027] The working principle of this utility model:

[0028] 1. First, loosen the original tower bolts in batches, install the connecting plates 2 one by one and tighten them until the ring is closed;

[0029] 2. Fit the assembly part 12 to the weld seam around the tower 5 to form a reinforcement ring, and tighten the pre-tightening bolts 3. Apply the pre-tightening torque according to the calculation requirements;

[0030] 3. Adjust the tightness of the tower bolts, and then install the connecting bolts 4 to securely connect the reinforcement ring and the connecting plate;

[0031] 4. Tighten all connecting bolts and tower bolts to complete the installation of the reinforcement device.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form or substance. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be considered as the scope of protection of the present invention. Any technician familiar with this profession can make some changes, modifications and equivalent changes made by using the technical content disclosed above without departing from the spirit and scope of the present invention, which are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A reinforcement device for a wind power tower, wherein: include, A reinforcement ring, used for being sleeved on the outer periphery of the tower, wherein the inner diameter of the reinforcement ring is adjustable; A connecting plate, detachably fixedly connected to a flange fixedly connected to the tower; The reinforcement component includes a reinforcement ring, reinforcement ribs and a first connection portion, a portion of which is connected to the outer periphery of the tower, and one end of which is fixedly connected to the connection plate.

2. A reinforcement device for a wind power tower according to claim 1, wherein: The reinforcement ring includes two semi-annular combination parts, both ends of which are formed with second connection parts pointing to relatively outwards, and the second connection parts of the two combination parts are relatively fixed to form a cavity with an outer periphery for accommodating the tower.

3. A reinforcement device for a wind power tower according to claim 2, wherein: The second connecting parts facing each other are fixedly connected by pre-tightening bolts, and the degree of fit between the two combined parts can be adjusted by tightening or loosening the pre-tightening bolts.

4. A reinforcement device for a wind power tower according to claim 2, wherein: The reinforcing component includes a plurality of reinforcing ribs equidistantly distributed on the periphery of the reinforcing ring and extending away from the reinforcing ring. The distal ends of the reinforcing ribs are fixedly connected to a first connecting portion, which is fixedly connected to the connecting plate.

5. A reinforcement device for a wind power tower according to claim 4, wherein: The first connecting portion is provided with a positioning hole, through which the connecting bolt is fixedly connected to the connecting plate.

6. A reinforcement device for a wind power tower according to any one of claims 1 to 5, wherein: The connecting plates are composed of multiple pieces, which are joined together to form a ring.

7. A reinforcement device for a wind power tower according to claim 6, wherein: The surface of the connecting plate near the end has an opening corresponding to the first connecting part, and the first connecting part is fixedly connected to the contact point of the two connecting plates. A part of the first connecting part is connected to one of the connecting plates, and the other part is connected to the other connecting plate in contact with it, thereby realizing the connection of the two connecting plates.

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