KR101333882B1 - Prefabricated earthquake-resistant equipment of wind power generator - Google Patents

Abstract

The present invention relates to a prefabricated earthquake resisting device of a wind power generator, more specifically, to a prefabricated earthquake resisting device of a wind power generator which includes an earthquake resisting combining part in the lower portion of a column for installing a wind power generator at the fixed height, wherein the earthquake resisting combining part is capable of absorbing the vibration in vertical and horizontal directions and correcting the location of the column for itself to be in an original condition by using a spring, and of absorbing the vibration in a vertical direction by using a buffer bushing, thereby causing a general user or an installer to feel less reluctance in using the earthquake resisting device, absorbing the vibration due to the earthquake by simple configuration, and absorbing the vertical vibration along with the horizontal vibration.

Description

Prefabricated earthquake-resistant equipment of wind power generator

The present invention relates to a prefabricated seismic device for a wind turbine, and more particularly, to install a seismic coupling device formed with a seismic coupling unit in a lower portion of a column formed to install a wind turbine at a constant height from the ground, the seismic coupler is a spring It absorbs the vibration in the vertical and horizontal directions and at the same time self corrects the position of the column to its original state, and it is a prefabricated seismic device of the wind power generator that can absorb the vibration in the vertical direction using the buffer bushing.

Generally, a wind power generator is a device that generates electricity by rotating a wing using wind power. Such a wind power generator needs to have a wing installed at a certain distance from the ground in order to meet more winds and prevent safety accidents. , A pillar is installed on the ground, and a wing is installed thereon.

Particularly, in the case of a small wind turbine generator of about 5 to 10 kW class installed on the road, it is used in combination with a solar cell to illuminate a street lamp. The present invention can be applied to a small- .

On the other hand, seismic waves due to earthquakes are represented by P wave, which is a longitudinal wave, and S waves, which are transverse waves. The present invention is a seismic resistant device for a wind turbine capable of absorbing all of such seismic waves.

In other words, the street lamp of a typical street light is connected to the concrete foundation. Most of the foundation is installed in the ground, and the foundation in the ground is fixed with stone, soil, sand, etc., Since the transmitted residual vibration can also be transmitted to the streetlight, an earthquake-proof device is needed for the streetlight.

There is a solar power generation system having an earthquake-proof device disclosed in Japanese Patent Application Laid-Open No. 10-2012-0029293, which is related to a conventional earthquake-proof device.

The solar panel includes a plurality of solar panels, a structure for supporting the solar panels, an inverter for converting electricity generated in the solar panel to transmit the electric power to the load, an electric panel for connecting the electric wires connected to the solar panel to the inverter, And a seismic isolation device installed between the support and the structure, wherein the seismic isolation device comprises: a body having a space part in the upper part or the lower part and having coupling means for connection with a connection target structure; A fastening means for fastening the fastening means of the fastening means to the body to be connected while compressing the buffer member by being fastened to the body to be connected through the body while passing through the body; And a damper for buffering between the body and the body to be connected, The solar cell module is disposed between the upper part of the solar cell platform or the lower structure of the photovoltaic power generation facility and the coupling means of the body is coupled with the upper or lower structure, and the coupling means is combined with the structure connected to the opposite side of the coupling means, And the vibration energy in the lateral direction is absorbed through the buffer member.

In the case of the above-mentioned patent, a new structure is required separately from the existing fixed parts of the column, which causes a rise in cost.

That is, a rectangular-shaped body having an empty space is required, a support plate is required inside the body, a separate buffer rod is to be constructed between the support plate and the inner side, and an anchor bolt and nut, The number of components such as compression springs becomes considerably large.

Despite these many configurations, the above patent has a problem that it is difficult to absorb longitudinal vibrations, that is, vibrations applied to the top and bottom of the column.

Therefore, the present invention reduces the objection to the general user or installer by using a method similar to the existing column fixing method, and to provide a prefabricated seismic device of a wind power generator capable of absorbing vibration caused by an earthquake with a simple configuration. have.

In addition, there is another object to provide a prefabricated earthquake-resistant device of the wind turbine capable of absorbing vertical vibration and vertical vibration at the same time.

The present invention provides a seismic assembly of a wind turbine, wherein the seismic apparatus comprises a seismic coupler is formed between the pillar to which the wind generator or the solar panel is coupled and the concrete foundation installed on the ground, the seismic coupler is And a lower plate coupled to the concrete foundation, and an upper plate installed at a predetermined distance from the lower plate and fixedly coupled to the flange by a fastening member. An elastic device including a spring is formed between the upper plate and the lower plate. The distance between the upper plate and the lower plate is characterized by being able to absorb the impact while being changed by the impact of the earthquake.

The seismic device of the wind power generator according to the present invention reduces the objection to general users or installers by using a method similar to the existing column fixing method, and can absorb vibrations due to earthquakes even with a simple configuration, and vertical vibration with horizontal vibration. There is an effect that can be absorbed at the same time.

1 is a configuration diagram of a wind turbine with a seismic device according to the present invention
Figure 2 is a partial configuration diagram of a wind turbine with a seismic device according to the present invention
3 is a separate configuration of the present invention
4 is a partial plan view of the present invention
5 is a cross-sectional view taken along the AA section of FIG.
6 is a cross-sectional view taken along the line BB of FIG.
7 is a cross-sectional view of the CC section of FIG.
8 and 9 is a partial perspective view of the seismic device according to the present invention

The present invention relates to a prefabricated seismic device for a wind turbine, and more particularly, to install a seismic coupling device formed with a seismic coupling unit in a lower portion of a column formed to install a wind turbine at a constant height from the ground, the seismic coupler is a spring It absorbs the vibration in the vertical and horizontal directions and at the same time self corrects the position of the column to its original state, and it is a prefabricated seismic device of the wind power generator that can absorb the vibration in the vertical direction using the buffer bushing.

The prefabricated seismic device of the wind turbine generator according to the present invention comprises a seismic coupling sphere formed between the pillar to which the wind generator or the solar panel is coupled and the concrete foundation installed on the ground, the seismic coupling sphere is to the concrete foundation The lower plate is coupled to the lower plate and a predetermined distance away from the lower plate and is configured to include a top plate fixedly coupled to the flange by a fastening member, an elastic device including a spring is formed between the upper plate and the lower plate, the upper plate and the lower plate The distance between them is variable by the impact of the earthquake, it is characterized by the ability to absorb the impact.

In addition, the elastic device is fixed to the upper plate and the pipe is partially or entirely housed in the column, the shaft penetrating the upper plate and abutting the lower plate, a predetermined distance away from the shaft and a screw is formed and the pipe and Wrench bolt is coupled to the screw, characterized in that consisting of a spring formed between the wrench bolt and the shaft.

In addition, a buffer bushing is further formed between the upper plate and the lower plate to absorb vibration generated in the axial direction of the column.

In addition, the buffer bushing is characterized in that the elastic body.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a wind turbine with a seismic device according to the present invention, Figure 2 is a partial configuration diagram of a wind turbine with a seismic device according to the present invention, Figure 3 is a separate configuration diagram of the present invention, Figure 4 5 is a partial plan view of the present invention, FIG. 5 is a cross-sectional view taken along line AA of FIG. 4, FIG. 6 is a cross-sectional view taken along line BB of FIG. 4, FIG. 7 is a cross-sectional view taken along line CC of FIG. 4, and FIGS. As a partial perspective view of the seismic device according to the present invention, the prefabricated seismic device of the wind power generator according to the present invention includes a pillar 2 to which the wind power generator 7 or the solar panel 6 is coupled and a concrete foundation installed on the ground ( 1) is configured to include a seismic coupler (10) formed between, the seismic coupler 10 is a lower plate 16 is coupled to the concrete base 1, and the lower plate 16 a certain distance The top plate (1) is installed apart and fixedly coupled to the flange (3) by a fastening member 5), an elastic device (not shown) including a spring 13 is formed between the upper plate 15 and the lower plate 16, and the upper plate 15 and the lower plate 16 The distance is variable by the impact of the earthquake, the shock can be absorbed.

First, the wind generator 7 that can be used in the present invention is any type of wind power generator having one or more blades, that is, a horizontal wind turbine in which the blade is rotated about a horizontal axis or a vertical axis in which the blade is rotated around a vertical axis. Both wind generators can be used, and in addition to generators, it can be used for various structures such as street lights and traffic lights.

The pillar 2 is directly coupled to the concrete foundation 1 which is usually installed on the ground. The present invention forms a seismic coupling unit 1 between the concrete foundation 1 and the pillar 2 to form a concrete foundation ( Damping or absorbing vibration transmitted from 1), the concrete foundation (1) may be a steel structure without concrete in some cases, in the case of a typical concrete foundation exposed parts buried in the ground out of the ground It can be made stable support for heavy objects, ie, the wind turbine 5, the solar panel 6, and the lamp 7 and the pillar 2 supporting the same, only if the weight is larger than that of the part.

In addition, one side of the concrete foundation (1) is formed with a passage (1a) of the wire for sending electricity generated from the wind turbine (5) or the solar panel (6) or receiving power from the power supply side, the passage (1a) ) Is in communication with the hollow portion (2a) of the pillar (2), the seismic coupler (10) is also easy to install the wire only when the passage is formed inside, the wrench bolt 12, the shaft 14 and the lower plate A passage should also be formed in the center of (16).

The column 2 is coupled to the disk-shaped flange (3) by welding or the like, such a flange (3) can be formed of a variety of polygonal plate or disk including a square plate shape as used for conventional purposes. .

The flange 3 may be formed integrally with the pillar 2 as shown, may be made separately from the pillar 2 and then fixedly coupled by welding or the like, and the height of the pillar 2 may be There is no limitation, but it is natural that it should be formed within a range capable of maintaining rigidity when facilities such as the wind turbine 5 are installed at the top.

The pillar 2 may be attached with a storage battery (not shown) for storing electricity produced by the wind turbine, a control box 8 for controlling the electricity of the produced electricity and the storage battery, and an inverter for converting the generated electricity. When used as a street lamp, the electric lamp 7 is attached, and the generator shown is a hybrid generator in which a power generation means other than the wind power generator 5, that is, a solar panel 6 for solar power generation is attached.

A rib 4 is formed between the column 2 and the flange 3 in order to increase the coupling force with the flange 3 while supporting the column 2.

The concrete foundation (1) and the flange (3) is fixedly coupled between the seismic coupler 10 by the fixing bolt 20 and the fixing nut 21, the fixing bolt 20 is anchor bolt The embodiment shown can be used to form the fixing bolt 20 is fixed to the inserted state in the curing process of the concrete foundation (1). In addition, the clamping force can be further improved by inserting the washer 8 between the fixing nut 21 and the flange 3.

The pillar (2) is usually formed of a hollow bar that is hollow inside to increase weight loss and durability, it is preferable that the pillar that can be used in the present invention is also hollow inside.

A part of the seismic coupler 10 according to the present invention is inserted into the hollow portion 2a of the pillar 2, and the shape shown is that most of the pipe 11 is inserted into the hollow portion 2a of the pillar 2. The pipe 11 is coupled to a state in which there is a certain amount of clearance in the hollow portion 2a of the pillar 2, so that the flow in the axial or radial direction of the pillar inside the pillar is possible to flow. In addition, the pipe 11 is fixedly coupled by the upper plate 15 and the bolt 18, as shown in Figure 7, in some cases the pipe 11 and the upper plate 15 to form a unitary configuration Of course it is possible.

A screw thread is formed in the pipe 11, a wrench bolt 12 is screwed to the screw thread, and a spring 13 is fitted to the wrench bolt 12, and the wrench bolt 12 is caused by frequent vibration. If the loosening of the pipe (11) is expected to form a screw hole in one side of the pipe 11 and then tighten the stop set bolts to fully secure the coupling position of the wrench bolt 12.

The other end of the spring 13 is fitted to the shaft 14 so that the amount of compression of the spring 13 is adjusted by the amount of tightening of the wrench bolt 12. As the wrench bolt 12 enters the pipe 11, the spring 13 ), The amount of compression increases.

As shown in FIGS. 5 to 7, the protrusion 14a is formed at one side of the outer diameter of the shaft 14 such that the shaft 14 is in close contact with one surface of the upper plate 15, and the upper plate ( 15, a long hole 15a is formed, and a position thereof is fixed by the fixing bolt 20 and the fixing nut 21 passing through the long hole 15a.

The lower plate 16 is formed away from the upper plate 15 by a predetermined distance, and the lower plate 16 is provided with a groove (without reference numeral) into which the buffer bushing 17 is fitted, and a buffer bushing in the groove. 17 is inserted into the upper plate 15 and the lower plate 16 is separated by a predetermined distance by the buffer bushing 17, as shown in Figure 6 buffer bushing 17 is the upper plate 15 and the lower plate 16 Each part is inserted into the grooves), and the grooves of the upper plate 15 and the lower plate 16 are formed at positions facing each other.

Hereinafter, referring to the operation of the assembled seismic device of the wind turbine according to the present invention, when the force acts in the horizontal direction (the width direction of the pillar), that is, the left and right direction of the concrete foundation by the impact such as an earthquake. The column receives a force to be inclined or moved in the direction in which the force acts or vice versa, in which case the column 2 squeezes the buffer bushing 17 on one side and exerts a force on the pipe 11. (11) is also inclined to some extent with the post 2, and then the original position by the elastic force of the spring 13 and the restoring force of the buffer bushing 17 to apply a force to the post 2, the post 2 is also the original coupling position Will be restored.

Next, when the force acts in the direction to rotate the column (2) by the rotation of the wind turbine (5) or by the wind applied to the solar panel (6) is a buffer bushing (17) formed in the seismic coupler (10) Shock absorbed while circumferentially in the circumferential direction of the pillar (2) absorbs the impact from the concrete foundation (1) in the seismic coupling sphere 10 to be transmitted to the pillar (2) to the impact by the earthquake Prevents direct transfer to this column.

At this time, the flange (3) has a long hole (3a) is formed to facilitate the coupling work of the column (2) and the seismic coupler 10 serves to give room for the rotation of the column, the long hole (3a) is preferably formed around a circle having a constant curvature.

Next, when a force acts in the axial direction of the column 2 (the height direction of the column), that is, the up and down direction of the concrete foundation 1, the pillar 2 becomes closer or farther away from the concrete foundation 1. In this case, the cushioning bushing 17 is compressed or stretched to absorb the shock, and the elastic device including the spring 13 together with the buffering bushing 17 also absorbs the shock while the compression and stretching process is repeated. .

In the above-described embodiment, the buffer bushing 17 is formed in a form that surrounds a portion of the fixed bolt 20, that is, the outer diameter of the fixed bolt 20, the buffer bushing 17 is the upper plate 15 or the lower plate The groove of the 16 is coupled with little gap.

The buffer bushing 17 may be made of only natural rubber or synthetic rubber as a raw material, but in this case, since elasticity may be degraded by corrosion, it is preferable to make plastic by mixing plastic with rubber. That is, since the rubber is good in elasticity, the vibration absorbing power is good, and the plastic can maintain the shape of the buffer bushing, and even when the vibration due to the seismic wave occurs, the damping force that is not rapidly compressed even when the compression force acts on the buffer bushing Absorption of vibration can be achieved.

Here, the blending ratio of the buffer bushing 17 is preferably made by mixing 10-30 parts by weight of plastic with 100 parts by weight of natural or synthetic rubber.

In other words, when the plastic content of the rubber is less than 10 parts by weight, it is difficult to secure the rigidity of the material due to the addition of the plastic. On the contrary, when the content of the plastic is more than 30 parts by weight, the elasticity of the rubber becomes difficult to absorb the vibration. Therefore, it is preferable to mix | blend while maintaining the above-mentioned ratio.

As shown in FIG. 6, the shock absorbing bushing 17 may be configured internally using a rubber material and a plastic material may be configured as an external cover.

In this case, the plastic cover can be absorbed by the rubber to absorb vibration.

Although the drawings and embodiments of the present invention have been described with respect to a hybrid generator in which the wind turbine 5 and the solar panel 6 are installed at the same time, it is obvious that the generator can be used in a single generator column in some cases. In addition, it can be applied to various pillars such as street lamps and traffic lamps installed on roads.

As a result, the prefabricated seismic device of the wind power generator according to the present invention can bring a seismic effect while fixing the column to a shape that does not change significantly from the shape of the existing installed column, thereby minimizing the burden on the user or installer. The relatively simple equipment can absorb vibrations generated in all directions such as the up-down direction, the left-right direction, and the rotational direction of the column.

1. Concrete foundation 1a. Passage
2. Column 2a. Hollow portion
3. Flange 3a. Long hole
4. rib 5. wind power generator
6. Solar Panel 7. Electric Light
8. Control Box
10; Seismic coupler
11.Pipe 12. Wrench Bolt
13. Spring 14. Shaft
14a. 15.Top plate
16. Bottom plate 17. Shock absorbing bushing
18. Bolt
20. Fixing bolt 21. Fixing nut
22. Washers

Claims (4)

In the prefabricated seismic device of the wind power generator,
The seismic device comprises a seismic coupling device 10 formed between the pillar (2) to which the wind generator (7) or the solar panel (6) is coupled and the concrete foundation (1) installed on the ground,
The seismic coupler 10 is the lower plate 16 is coupled to the concrete base 1, the lower plate 16 is installed at a predetermined distance away from the upper plate fixed to the flange (3) by a fastening member ( 15), including
An elastic device including a spring 13 is formed in the upper plate 15 and the lower plate 16 to absorb the impact while the distance between the upper plate 15 and the lower plate 16 is changed by an impact caused by an earthquake. Can do it,
The elastic device is fixed to the upper plate (15) and the pipe (11) which is partially or entirely housed in the column (2), and the shaft 14 penetrating the upper plate (15) to contact the lower plate (16) ), A wrench bolt 12 spaced apart from the shaft 14 by a screw and screwed to the pipe 11, and a spring 13 formed between the wrench bolt 12 and the shaft 14. Prefabricated seismic device of the wind turbine generator, characterized in that consisting of.
delete The method of claim 1,
Prefabricated earthquake-resistant device of the wind turbine, characterized in that the buffer bushing 17 is further formed between the upper plate 15 and the lower plate 16 to absorb the vibration generated in the axial direction of the column (2).
The method of claim 3,
The shock absorbing bushing (17) is a seismic device of the wind turbine, characterized in that the elastic body.

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