WO2015099204A1

WO2015099204A1 - Horizontal shaft wind power generator

Info

Publication number: WO2015099204A1
Application number: PCT/KR2013/010933
Authority: WO
Inventors: 이택우
Original assignee: 삼원테크 주식회사
Priority date: 2013-11-28
Filing date: 2013-11-28
Publication date: 2015-07-02

Abstract

The present invention relates to a horizontal shaft wind power generator comprising: a power generation unit which is positioned at a given height from the ground; a rotational blade unit which is positioned on one side of the power generation unit and includes a plurality of blades; and a reinforcement support unit which is positioned between the rotational blade unit and the power generation unit, wherein the reinforcement support unit includes a reinforcement support unit housing, the reinforcement support unit housing including a bearing unit and a coupler unit. Since a horizontal shaft is dualized into a first horizontal shaft connected to the rotational blade unit and a second horizontal shaft connected to the power generation unit, even if the size of the blades increases and excessive force is applied to the first horizontal shaft, the force is distributed to the reinforcement support unit including the first horizontal shaft so that excessive force is not applied to the second horizontal shaft. Therefore, the present invention can prevent malfunctions of the power generator caused by an increase in the size of the blades.

Description

Horizontal axis wind power generator

The present invention relates to a horizontal shaft wind turbine, and more particularly to a horizontal shaft wind turbine including a reinforcement support for supporting the weight of the blade of the horizontal shaft wind turbine.

Wind power refers to a power generation method that uses windmills to convert wind energy into mechanical energy (rotational power) through the main shaft, and this mechanical energy is converted into electrical energy by driving a generator to obtain power.

It is not only the most economical among the renewable energy sources developed so far, but also because of the advantages that can be generated by the wind, which is an unlimited energy source for clean energy, in Europe, where the wind power industry was developed, and recently in the Americas and Asia. Active investment is being made.

In particular, wind power generation has the cost aspects such as improving the price competitiveness of power generation costs and minimizing the area required for installation of power generation systems, as well as the social and environmental aspects such as alternative energy sources for fossil energy depletion and global environment protection such as prevention of warming. The government is actively supporting the dissemination of wind power generation due to economic advantages such as the stability of supply and the reduction of dependence on energy imports.

Wind turbines for wind power generation are divided into vertical shaft wind turbines and horizontal shaft wind turbines according to the direction of rotational axis with respect to the ground. To date, wind turbines are more efficient and stable than commercial shafts. Most of the horizontal axis wind turbines are applied.

In general, the horizontal axis wind turbine is composed of a rotor and a plurality of blades, the rotor blade rotated by the wind, the horizontal shaft coupled to the rotary blade portion driven by the rotation of the rotary blade portion, and the rotational force of the horizontal shaft It includes a generator that generates power by.

However, in such a conventional horizontal axis wind turbine, in order to obtain a lot of power, it is necessary to raise a blade or to install a generator corresponding to the size of the blade. As the blade and the generator become larger, the weight increases so that the heavy blade and the generator The towers and structures that will support them must grow in size.

Therefore, due to such technical difficulties, the installation and maintenance costs are increased exponentially, and there is a problem that causes a huge obstacle to the wide spread of the wind power generator due to the increase in technical difficulty and cost.

The problem to be solved by the present invention is to provide a horizontal axis wind power generator that can support this through a simple structure, even if the size of the blade increases.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above-mentioned problems, the present invention provides a power generation unit located at a constant height from the ground; Located on one side of the power generation portion, the rotary blade portion including a plurality of blades; And a reinforcement support part positioned between the rotary blade part and the power generation part, wherein the reinforcement support part includes a reinforcement support part housing, and the reinforcement support part housing provides a horizontal wind power generator including a bearing part and a coupler part.

In addition, the present invention provides a horizontal axis wind turbine generator comprising a coupler unit and a second coupler coupled to the first coupler.

In addition, the present invention includes a first horizontal axis located inside the reinforcement support part and a second horizontal axis located inside the power generation part housing, one end of the first horizontal axis being connected to the first coupler, One end of the two horizontal shafts is connected to the second coupler, and the first coupler and the second coupler provide a horizontal shaft wind power generator coupled to each other.

In addition, the first horizontal axis, the first coupler coupling portion located at one end; Rotating blade coupling portion located at the other end; A first bearing coupling portion and a second bearing coupling portion positioned between a first coupler coupling portion and the rotary blade coupling portion; And a bearing separating part positioned between the first bearing coupling part and the second bearing coupling part, wherein the diameter of the first bearing coupling part and the second bearing coupling part is the rotation blade coupling part and the first coupler. It is larger than the diameter of the coupling portion, the diameter of the bearing separator provides a horizontal axis wind turbine generator, characterized in that larger than the diameter of the first bearing coupling portion and the second bearing coupling portion.

In addition, the present invention includes a bearing portion and a bearing housing for accommodating the bearing, the bearing includes a first bearing and a second bearing spaced apart from the first bearing, wherein the bearing housing is It provides a horizontal axis wind turbine generator comprising a first bearing receiving portion for accommodating a first bearing, a second bearing receiving portion for accommodating the second bearing and a bearing separating portion accommodating portion for accommodating the bearing separating portion.

As described above, the horizontal axis wind power generator according to the present invention has a first horizontal axis connected to the rotary blade and a second horizontal axis connected to the generator, by dualizing the horizontal axis, the size of the blade is increased, the first horizontal axis Even if an excessive force is generated, the force is distributed to the reinforcing support part including the first horizontal axis so that the excessive force is not generated on the second horizontal axis, thereby preventing the generator from malfunctioning by increasing the size of the blade. .

1 is a schematic diagram showing a horizontal axis wind power generator of a general structure.

2 is a schematic combined perspective view showing a horizontal axis wind power generator according to the present invention, Figure 3 is a schematic separated perspective view showing a horizontal axis wind power generator according to the present invention, Figure 4 is a horizontal axis wind power generation according to the present invention A schematic cross section showing the device.

5 is a perspective view showing a first horizontal axis according to the present invention, Figure 6 is a plan view showing a first horizontal axis according to the present invention.

7 is a schematic perspective view showing a bearing housing according to the present invention, Figure 8 is a cross-sectional view showing a bearing housing according to the present invention.

9 is a schematic perspective view showing a bearing according to the present invention, Figure 10 is a cross-sectional view showing a bearing according to the present invention.

Figure 11 is a schematic perspective perspective view showing a coupler according to the present invention, Figure 12 is a schematic exploded perspective view showing a coupler according to the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Regardless of the drawings, the same reference numbers refer to the same components, and “and / or” includes each and every combination of one or more of the items mentioned.

Although the first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another. Therefore, of course, the first component mentioned below may be a second component within the technical spirit of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of one or more other components in addition to the mentioned components.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art. In addition, the terms defined in the commonly used dictionaries are not ideally or excessively interpreted unless they are specifically defined clearly.

The spatially relative terms " below ", " beneath ", " lower ", " above ", " upper " It can be used to easily describe a component's correlation with other components. Spatially relative terms are to be understood as including terms in different directions of components in use or operation in addition to the directions shown in the figures. For example, when flipping a component shown in the drawing, a component described as "below" or "beneath" of another component may be placed "above" the other component. Can be. Thus, the exemplary term "below" can encompass both an orientation of above and below. The components can be oriented in other directions as well, so that spatially relative terms can be interpreted according to the orientation.

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

1 is a schematic diagram illustrating a horizontal axis wind power generator having a general structure.

Referring to FIG. 1, a horizontal shaft wind power generator 10 having a general structure includes a tower 14 having a predetermined height standing on the ground, and a streamlined housing 13 installed at the top of the tower at a predetermined height from the ground. Include.

One side of the housing may be provided with a rotor blade portion 30 made of a rotor having a plurality of blades 11 is rotated by the wind.

In addition, a horizontal shaft 12 which is rotationally driven by the rotation of the rotary blade unit 30 is installed to extend into the housing 13, and the rotational force of the horizontal shaft 12 is applied to the interior of the housing 13. A generator (not shown) for converting to generate electricity is provided.

That is, the generator (not shown) is connected to the horizontal shaft 12 and is installed inside the housing 13, and generates power by converting the rotational force of the horizontal shaft 12 into electrical energy.

However, in the case of a general horizontal axis wind power generator, one side of the horizontal shaft 12 is provided with a rotary blade 30, the other side of the horizontal shaft 12 is provided with a generator, that is, a rotary blade portion on one horizontal axis And generator are connected at the same time.

In this case, as described above, in order to obtain a lot of power, it is necessary to raise a blade or mount a generator having a size corresponding to the blade size.

However, by increasing the size of the blade, the weight of the blade is increased, the weight of the increased blade is applied to the force on the horizontal axis 12, the force applied to the horizontal axis is transmitted to the generator to malfunction of the generator There is a problem.

Therefore, in this case, as the size of the blade is increased, it is necessary to increase the size of the horizontal axis and the size of the generator, but this has a problem that the size of the tower and the structure to support the heavy blade and generator, etc. must be increased together.

2 to 4, the horizontal axis wind power generator 100 according to the present invention is a tower (not shown) of a constant height erected on the ground, and the power generation unit is installed on the top of the tower located at a constant height from the ground 300.

In addition, one side of the power generation unit may be provided with a rotor blade 113 is made of a rotor having a plurality of blades 110 to be rotated by the wind.

At this time, in the present invention includes a reinforcing support portion 200 located between the rotary wing portion 113 and the power generation portion 300.

Hereinafter will be described in detail the coupling relationship of the rotary blade portion, the reinforcement support and the power generation unit of the horizontal axis wind power generator according to the present invention.

First, the rotary blade 113 is composed of a rotor having a plurality of blades 110 is rotated by the wind, by applying a rotational force to the first horizontal axis and the second horizontal axis to be described later, the rotational force is converted into electrical energy. .

At this time, the rotary blade portion can be applied to the rotary blade portion of the known horizontal axis wind power generator, and thus, does not limit the structure and configuration of the rotary blade portion.

Next, the reinforcement support part 200 includes a reinforcement support part housing 220, a front cover 210 that opens and closes the front surface of the reinforcement support part housing, and a rear cover 230 that opens and closes the rear surface of the reinforcement support part housing. Include.

In this case, the front cover 210 includes a first fastening part 211, the reinforcement support part housing 220 includes a second fastening part 222 and a third fastening part 221, and the rear cover. 230 may include a fourth fastening portion. This will be described later.

The reinforcement support part housing 220 includes a bearing part 220a and a coupler part 220b, and the bearing part 220a includes a bearing 260 and a bearing housing 250 for accommodating the bearing. The coupler unit 220b includes a coupler 270 including a first coupler 271 and a second coupler 275.

At this time, the bearing portion 222a is configured to facilitate the rotation of the first horizontal shaft 240 to be described later, the first horizontal shaft 240 and the reinforcement support portion housing 220 to be firmly coupled That is, the first horizontal shaft 240 is fastened to the bearing 260, the bearing 260 is located inside the bearing housing 250, the bearing housing 250 of the reinforcing support housing 220 As a result, the first horizontal shaft 240 may be firmly coupled to the reinforcing support housing 220.

Meanwhile, in the drawings, the bearing 260 is composed of a first bearing 261 and a second bearing 262. Alternatively, the bearing 260 may include at least one bearing.

In addition, the reinforcing supporter housing 220 includes a first horizontal shaft 240 positioned in the interior, wherein one end of the first horizontal shaft 240 is connected to the rotary blade 113, the first The other end of the horizontal shaft 240 is connected to the first coupler 271.

Next, the power generation unit 300 may include power

generation unit housings

310 and 320, and the power generation unit housing may be divided into a first power generation unit housing 310 and a second power generation unit housing 320. The first power generation unit housing 310 and the second power generation unit housing 320 may include

fifth fastening portions

311 and 321, respectively. This will be described later.

In addition, a generator 330 for generating electricity by converting the rotational force of the horizontal axis into electrical energy may be provided.

In this case, a second horizontal shaft 340 is disposed inside the power

generation unit housings

310 and 320, and one end of the second horizontal shaft 340 is connected to the generator 330, and the second horizontal shaft ( The other end of the 340 is connected to the second coupler 275 located inside the reinforcement support housing.

On the other hand, as described above, the coupler portion 220b includes a coupler 270 composed of a first coupler 271 and a second coupler 275, and the first coupler 271 includes the first horizontal axis. Is connected to the other end of the 240, the second coupler 275 is connected to the other end of the second horizontal axis 340, the first coupler 271 and the second coupler 275 are mutually fastened, The rotational force of the first horizontal axis 240 may be transmitted to the second horizontal axis 340.

That is, the horizontal axis wind power generator 100 according to the present invention includes a power generation unit 300 which is located at a constant height from the ground, one side of the power generation unit is made of a rotor having a plurality of blades 110 to rotate by the wind Rotating blade portion 113 is provided, and includes a reinforcing support portion 200 positioned between the rotary blade portion 113 and the power generation unit (300).

In this case, the reinforcement support part 200 includes a reinforcement support part housing 220, the reinforcement support part housing 220 includes a bearing part 220a and a coupler part 220b, and the coupler part 220b includes a first And a coupler 270 composed of one coupler 271 and a second coupler 275.

In addition, the reinforcing support part 200 includes a first horizontal axis 240, the power generation unit 300 includes a second horizontal axis 340, the first horizontal axis is connected to the first coupler, the first The second horizontal axis may be connected to the second coupler, and the first coupler 271 and the second coupler 275 may be coupled to each other to transmit the rotational force of the first horizontal axis 240 to the second horizontal axis 340.

As a result, the rotational force of the first horizontal shaft 240 driven to rotate by the rotation of the rotary blade 113 is transmitted to the second horizontal shaft 340 through a coupler, and the generator 330 is the second horizontal shaft. The rotational force of 340 is converted into electrical energy to generate power.

As described above, in the case of a general horizontal axis wind power generator, the rotary blade unit and the generator are simultaneously connected to one horizontal axis.

Therefore, by increasing the size of the blade, an excessive force generated on the horizontal axis is transmitted to the generator has a problem that the generator malfunctions.

However, in the present invention, by placing the first horizontal axis connected to the rotary blade and the second horizontal axis connected to the generator, by dualizing the horizontal axis, the size of the blade is increased, even if excessive force is generated in the first horizontal axis, this is the primary By distributing the force to the reinforcing support portion including the first horizontal axis, the force is not generated in the second horizontal axis, and thus, the force applied to the generator connected to the second horizontal axis is weak, and eventually, the blade It is possible to solve the problem that the generator malfunctions by increasing the size.

Meanwhile, as shown in FIG. 3, the front cover 210 includes a first fastening part 211, and the reinforcing support part housing 220 has a second fastening part 222 and a third fastening part 221. ), And the rear cover 230 may include a fourth fastening part, and the first power generating part housing 310 and the second power generating part housing 320 may respectively include fifth fastening parts 311 and 321. ) May be included.

The front cover 210 and the reinforcing support part housing 220 fasten the first fastening part 211 and the second fastening part 222 through a known fastening means such as screwing or a bolt and nut. Can be combined.

In addition, the reinforcement support part housing 220, the rear cover 230, and the power

generation part housings

310 and 320 may be connected to each other by a third coupling part 221 through a known coupling means such as screw coupling or coupling bolt and nut. ) And the fourth fastening part 231 and the

fifth fastening parts

311 and 321 may be coupled to each other.

At this time, the drawing shows that the reinforcing support housing 220 and the power

generation unit housings

310 and 320 are fastened with the rear cover 230 interposed therebetween. The support part housing 220 and the power

generation part housings

310 and 320 may be directly fastened.

That is, in the present invention, the reinforcing supporter housing 220 may be directly coupled to the power

generation unit housings

310 and 320. Even if an excessive force is generated on the first horizontal axis due to an increase in the size of the blade, this is primarily performed. Since the force is distributed to the reinforcing support part including the first horizontal axis, and the force distributed to the reinforcing support part is transmitted to the power generation part housing, therefore, the force applied to the generator connected to the second horizontal axis is weak. In addition, it is possible to solve the problem that the generator malfunctions by increasing the size of the blade.

Hereinafter, a detailed configuration of the horizontal axis wind power generator according to the present invention will be described.

5 and 6, the first horizontal shaft 240 according to the present invention includes a rotary blade coupling portion 241 positioned at one end and a first coupler coupling portion 255 positioned at the other end thereof. One end of the first horizontal shaft 240 may be connected to the rotary blade 113, and the other end of the first horizontal shaft 240 may be connected to the first coupler 271.

In addition, the first horizontal shaft 240 according to the present invention includes a first bearing coupling portion 242 and the second bearing coupling portion 244, through which, the first bearing coupling portion 242 to the first bearing This is coupled, the second bearing may be coupled to the second bearing coupling portion 244.

At this time, in the present invention, the diameter of the first bearing coupling portion 242 and the second bearing coupling portion 244 is larger than the diameter of the rotary blade coupling portion 241 and the first coupler coupling portion 255, thereby providing a first diameter. The horizontal shaft 240 is coupled to the bearing 260, the bearing 260 is located inside the bearing housing 250, the bearing housing 250 is located inside the reinforcement support housing 220, As a result, the first horizontal shaft 240 may be firmly coupled to the reinforcing support housing 220.

On the other hand, for easy rotation of the first bearing and the second bearing, the first horizontal shaft 240 according to the present invention, so that the first bearing and the second bearing can be spaced apart from each other, the bearing separation unit 243 It includes, and by increasing the diameter of the bearing separation unit 243 than the diameter of the first bearing coupling portion 242 and the second bearing coupling portion 244, it is possible to maintain a gap in which a plurality of bearings are spaced apart from each other.

That is, in the present invention, the first horizontal axis includes: a first coupler coupling part positioned at one end; Rotating blade coupling portion located at the other end; A first bearing coupling portion and a second bearing coupling portion positioned between a first coupler coupling portion and the rotary blade coupling portion; And a bearing separating part positioned between the first bearing coupling part and the second bearing coupling part, wherein the diameter of the first bearing coupling part and the second bearing coupling part is the rotation blade coupling part and the first coupler. Larger than the diameter of the coupling portion, the diameter of the bearing separation portion may be formed larger than the diameter of the first bearing coupling portion and the second bearing coupling portion.

7 and 8, the bearing housing 250 according to the present invention includes a first bearing receiving part 251 for accommodating the first bearing and a second bearing receiving part for accommodating the second bearing ( 253, and may include a bearing separating part receiving part 252 for receiving the bearing separating part 243 of FIGS. 3 and 3B.

The bearing housing 250 is located inside the reinforcement support housing 220. A first bearing is located at the first bearing accommodation part 251 of the bearing housing, and a second bearing is located at the second bearing accommodation part 253. In this position, the bearing separating portion is located in the bearing separating portion receiving portion 252, when the first horizontal shaft 240 is fastened with the bearing 260, it can maintain a firm coupling through the bearing housing.

9 and 10, the bearing 260 according to the present invention arranges the beads 266 between the inner ring 265 and the outer ring 264, such that the inner ring 265 and the outer ring 264 are disposed. ) Can rotate, and the inner ring 265 includes a hole 263, the first horizontal axis can be inserted into the hole.

In the present invention, the bearing may use a ball bearing of a general structure, and thus, does not limit the type of the bearing in the present invention.

11 and 12, the coupler 270 according to the present invention includes a first coupler 271 and a second coupler 275 coupled to the first coupler, and the first horizontal axis is a first coupler. And the second horizontal axis are connected to the second coupler, and the first coupler 271 and the second coupler 275 are coupled to each other to transmit the rotational force of the first horizontal axis to the second horizontal axis. As described above.

In this case, the first coupler 271 includes a first coupler body portion 273 and a first coupler fastening portion 274 protruding from the first coupler body portion, and the second coupler 275 includes a second coupler. And a coupler body portion 277 and a second coupler coupling portion 274 protruding from the second coupler body portion, wherein the first coupler coupling portion 274 and the second coupler coupling portion 274 are fastened to each other. As a result, the first coupler 271 and the second coupler 275 may be fastened to each other.

In addition, the first coupler 271 includes a first insertion hole 272 into which the first horizontal axis is inserted, and the second coupler 275 includes a second insertion hole 276 into which the second horizontal axis is inserted. And a first horizontal axis inserted into the first insertion hole, a second horizontal axis inserted into the second insertion hole, and through the known fixing or fastening means, the horizontal axis can be respectively fixed to the insertion hole. .

In the present invention, the coupler may use a coupler having a general structure, and thus, the type of the coupler is not limited in the present invention.

According to the present invention as described above, the horizontal axis wind power generator of the present invention has a first horizontal axis connected to the rotary wing and a second horizontal axis connected to the generator, by dualizing the horizontal axis, the size of the blade is increased, the first Even if an excessive force is generated on the horizontal axis, this primarily causes the force to be distributed to the reinforcing support portion including the first horizontal axis.

As a result, an excessive force is not generated on the second horizontal axis, and thus, the force applied to the generator connected to the second horizontal axis is weak, so that the generator malfunction due to increasing the size of the blade can be solved. .

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. You will understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

Claims

A power generation unit located at a constant height from the ground;

Located on one side of the power generation portion, the rotary blade portion including a plurality of blades; And

A reinforcement support part positioned between the rotary blade part and the power generation part;

Including,

The reinforcement support part includes a reinforcement support part housing, and the reinforcement support part housing comprises a bearing part and a coupler part.
The method of claim 1,

The coupler unit comprises a first coupler and a horizontal axis wind turbine generator comprising a second coupler coupled to the first coupler.
The method of claim 2,

A first horizontal axis located inside the reinforcement support part and a second horizontal axis located inside the power generation part housing;

One end of the first horizontal axis is connected to the first coupler, and one end of the second horizontal axis is connected to the second coupler,

The horizontal coupler wind turbine is the first coupler and the second coupler are fastened to each other.
The method of claim 2,

The first horizontal axis is,

A first coupler coupling portion positioned at one end;

Rotating blade coupling portion located at the other end;

A first bearing coupling portion and a second bearing coupling portion positioned between a first coupler coupling portion and the rotary blade coupling portion; And

A bearing separating part disposed between the first bearing coupling part and the second bearing coupling part;

Including;

The diameter of the first bearing coupling portion and the second bearing coupling portion is larger than the diameter of the rotary blade coupling portion and the first coupler coupling portion,

The diameter of the bearing separation unit is a horizontal axis wind power generator, characterized in that larger than the diameter of the first bearing coupling portion and the second bearing coupling portion.
The method of claim 4, wherein

The bearing portion includes a bearing and a bearing housing for receiving the bearing,

The bearing includes a first bearing and a second bearing spaced apart from the first bearing,

The bearing housing has a horizontal wind turbine including a first bearing receiving portion for accommodating the first bearing, a second bearing receiving portion for accommodating the second bearing, and a bearing separating portion accommodating portion for accommodating the bearing separating portion. .