JP2002339854A - Wind power generation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a manufacturing cost of a wind power generation device having a windmill of large bore. SOLUTION: The wind power generation device comprises: a rotary vanes 12 erected at equal intervals; a supporting body which supports the rotary vanes from a lower surface; a machine room 14 arranged at a rotating center of the rotary vanes 12 via supporting arms 13; a generator 15 stored inside the machine room 14; a supporting column 16 which rotatably supports the machine room 14; and an accelerating mechanism 27 which increases a speed of rotation of the machine room 14 to transmit it to the generator 15. Since the rotary vanes 12 catches wind to integrally rotate the supporting body, the supporting arms 13, and the machine room 14 thereby rotating the generator, strength of the supporting column 16 and the like can be lowered by a supporting force from the supporting body, thereby reducing the manufacturing cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind power generator for generating electric power by rotating a rotor on water or on the ground by wind power, and more particularly to a large wind power generator.

[0002]

2. Description of the Related Art Conventionally, various wind turbines for generating power using wind power have been proposed. FIG. 18 is a side view showing an example of a conventional gyromill type wind turbine. Here, the windmill is installed on a horizontal fixed surface A such as the ground, and has a plurality of pairs of arm members C and D on a peripheral surface of an output shaft B arranged along the vertical direction.

The pair of arm members C and D extend in a horizontal direction from both upper and lower ends of the output shaft B in a state of being parallel to each other, and are radially arranged around the output shaft B. .

Each pair of arm members C and D supports a rotary wing F between the respective extending ends via a deflecting axis E, and is located further inward than the deflecting axis E. A stopper G is provided at the site. The deflection axis E is fixed to each pair of arm members C and D via both ends thereof, and extends along the vertical direction. The rotary wing F has, for example, a rectangular plate shape, and is provided with a cylindrical boss member H at a position outside a center line along the vertical direction, and the above-described change is made via the boss member H. It is rotatably supported on the opposite axis E. The stoppers G protrude from the arm members C and D in directions facing each other, and each come into contact with the inner portion of the rotary wing F. Further, in order to avoid the cantilever support state of the output shaft B, a connecting member L provided upright from the horizontal fixing surface A is provided, and the upper bearing portion K supported by the connecting member L supports the output shaft B. Support the upper edge.

[0005]

However, in the conventional gyro-mill type wind turbine configured as described above, when the size of the rotary blade F is increased to increase the output from the output shaft B, the output shaft B, All of the arm members C and D, the connecting member L, and the like must be lengthened, and there is a problem in strength.
In addition, when these wind turbines are made large to be built on a horizontal fixed surface on the ground, for example, when the diameter of the wind turbine is about 100 m, it is necessary to take sufficient strength of the wind turbine itself and to support the wind turbine. The structure of the member becomes enormous, which is extremely disadvantageous in terms of installation space and construction cost. The present invention has been proposed in view of the above circumstances, and provides a wind power generation device capable of reducing the weight of the structure of a wind turbine and a column by floating the wind turbine itself or running on the ground or the like. With the goal.

[0006]

According to a first aspect of the present invention, there is provided a wind power generator, comprising: a plurality of rotating blades erected at equal intervals; a support member for supporting the rotating blades from a lower surface; A machine room disposed at a center of rotation of the rotary wing via a support arm, a generator housed in the machine room, a support column rotatably supporting the machine room, and a rotation of the machine room. A speed increasing mechanism for increasing the speed and transmitting the generated speed to the generator, wherein the rotating wings receive wind and rotate the generator by integrally rotating the support, the support arm, and the machine room. Features. With the above configuration, the required strength of the support columns can be reduced even for a large-diameter wind turbine.

According to a second aspect of the present invention, there is provided a hollow annular float constituting the support, rotating blades erected at equal intervals on the upper surface of the annular float, and a support arm at the center of the annular float. A machine room disposed therein, a generator housed in the machine room, a support column rotatably supporting the machine room, and increasing the rotation of the machine room to transmit the rotation to the generator. A speed increasing mechanism, wherein the rotary wing receives wind and the annular float,
The generator is rotated by integrally rotating the support arm and the machine room. With the above configuration, the annular float and the rotary wing can be floated on the water, and the load applied to the support column can be reduced.

[0008] The invention according to claim 3 is characterized in that the support is a wheel. According to the above configuration, since the wheels travel on the ground or ice to support the load, the structure of the support columns can be saved without lowering the rotation speed of the windmill.

According to a fourth aspect of the present invention, the support is a sled. With the above configuration, the windmill can be smoothly rotated on snow and ice.

[0010] The invention according to claim 5 is characterized in that the support is a combination of a sled and a wheel. With the above configuration, it is possible to cope with the case where snow falls on the ground.

According to a sixth aspect of the present invention, in addition to the configuration of the first aspect, the rotor includes
The mounting angle is changed by a mounting angle changing mechanism. With the above configuration, the support arm, the machine room, and the like can always be rotated in the same direction regardless of the wind direction.

According to a seventh aspect of the present invention, in addition to the configuration of the sixth aspect of the present invention, the mounting angle changing mechanism holds the rotor in parallel to the wind direction in a strong wind. It is characterized by. With the above configuration, it is possible to prevent the rotor blades from being damaged during a strong wind.

According to an eighth aspect of the present invention, in addition to the configuration of the second aspect of the present invention, the support column has
It is characterized by being configured to be stretchable. With the above configuration, even when the water level rises and falls, the annular float, the machine room, and the like do not move up and down in response to this, and no extra load is applied to the support columns.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing one embodiment. FIG. 1 is a plan view showing an embodiment of a wind turbine generator according to the present invention, and FIG. 2 is a sectional view taken along line AA ′ of the wind turbine generator shown in FIG. Here, the wind power generator 10 includes a hollow annular float 11, and rotating blades 12 erected on the upper surface of the annular float 11 at equal intervals.
A machine room 14 disposed at the center of the annular float 11 via a support arm 13, and a generator 15 housed in the machine room 14.
And a supporting column 16 that rotatably supports the machine room 14, a speed increasing mechanism 27 that increases the rotation of the machine room 14 and transmits the rotation to the generator 15.

The annular float 11 has a donut shape as a whole and a hollow circular cross section. In addition, annular float 1
1 is supported by four support arms 13 having a truss structure, and is connected to a machine room 14 arranged at the center of the annular float 11. Further, the annular float 11 has rotating blades 12 erected on the upper surface thereof at equal intervals. In the embodiment shown in the figure, four rotating blades 12 are arranged at intervals of 90 degrees, and rotate in the direction of arrow T when wind is received from the K direction. The rotary wing 12 has a substantially streamlined cross section, and is connected to a mounting angle changing mechanism 17 provided inside the annular float 11 by a support shaft 12a at the base end. Also,
A machine room 14 arranged at the center of the annular float 11 is supported by a support column 16 so as to be rotatable and vertically movable. Therefore, as shown in FIG. 2, the annular float 11 floating on the water surface W moves in the direction of arrow H when the water level rises and falls. In other words, the loads of the annular float 11 and the rotary wings 12 are affected by the buoyancy of the annular float 11 from the water.
The load applied to the support pillar 16 is reduced. In addition, support column 1
6 is connected to a fixed leg 18 fixed to the water bottom.
The fixed leg 18 is made of concrete or the like, is partially buried in the water bottom, and supports the entire wind power generator 10 via the support pillar 16. In the present embodiment, the fixed leg 18 has a short columnar shape, but is not limited thereto.
Other shapes such as a quadrangular prism and a polygonal prism may be used.

FIG. 3 is an enlarged plane showing the inside of the circle a in FIG. 1, and the angle of attachment of the rotor 12 to the annular float 11 can be changed. 4A is a cross-sectional view taken along line aa ′ of FIG. 3, and FIG. 4B is a cross-sectional view taken along line bb ′ of FIG. Here, the mounting angle changing mechanism 17 in the annular float 11 to which the support shaft 12a is connected includes a disc-shaped cam member 19 and a stopper 20 abutting on the outer peripheral surface of the cam member 19. The support shaft 12a is provided with bearings 30a, 30
It is rotatably attached to the annular float 11 by b. Further, the bearing 30a is watertight. As shown in FIGS. 5A and 5B, the cam member 19 has a substantially disk-shaped shape and has a concentric concave portion 19a. In the embodiment shown in FIG. 5B, the concave portion 19a is formed within a range of ± 30 degrees with respect to the center axis L of the rotary wing 12. In addition, the stopper 20 is provided for the cam member 1.
9 includes a roller claw 20a urged to abut against a peripheral surface of the annular float 9 by a spring (not shown) and a stopper body 20b supporting the roller claw 20a so as to adjust the urging force of the spring. Is fixed on the support base 11a. Therefore, when the roller claw 20a is present in the recess 19a, the rotary wing 12 connected via the support shaft 12a can rotate around the support shaft 12a within a range of ± 30 degrees. In addition, the roller claw 20a
When a force stronger than the urging force of the spring acts, the step can get over the step of the concave portion 19a.

When the rotating blade 12 is at the point A as shown in FIG. 5 (a) in the case of normal wind speed, the mounting angle changing mechanism 17 having the above structure It is in contact with the end X of the concave portion 19a of the member 19. Therefore, the rotary wing 12 is no longer supported by the support shaft 12.
It cannot rotate around a, and receives a wind at this angle to generate a moment to rotate the annular float 11 clockwise. When the rotary wing 12 reaches the conversion point P according to the rotation of the annular float 11, the direction of the rotary wing 12 becomes parallel to the wind direction, and no rotational moment is generated. Point P is set at a position rotated by 30 degrees from point B in the present embodiment. When the rotary wing 12 passes the turning point P, it rotates by wind force, and the roller claw 20a of the stopper 20 is
9 comes into contact with the end Y of the concave portion 19a. Therefore, the rotating blade 12 is inverted at the turning point P, and receives the wind on the surface opposite to the conventional one, and applies a clockwise rotational moment to the annular float 11. By repeating such an operation sequentially, each rotor 12 that has received the wind rotates the annular float 11 clockwise at all times.

FIG. 6 shows the operation of the rotor 12 in a strong wind. First, when the rotor 12 receives a strong wind at the point A,
The roller pawl 20a of the stopper 20 overcomes the step of the concave portion 19a of the cam member 19 against the urging force of the spring, and the rotating blade 12 becomes parallel to the wind direction. Roller claw 20
The limit at which a can get over the step of the concave portion 19a can be freely set by adjusting the biasing force of a spring built in the stopper body 20b. Once the roller claw 20a gets over the step of the concave portion 19a,
In order to freely roll around the cam member 19, the rotating blade 12
Is always in a direction parallel to the wind direction without opposing the wind direction, and does not give a rotational moment to the annular float 11.
The mounting angle changing mechanism 17 can prevent the rotating blades 12 from being damaged in a strong wind, and can maintain a constant rotation speed even in a strong wind. At point D, roller claw 2a
Is located in the concave portion 19a, so that when the wind speed returns to a predetermined value or less, the rotating operation at the time of normal wind shown in FIG. 5A can be returned.

FIG. 7 is an enlarged vertical sectional view of the machine room 14 of the wind turbine generator according to the present invention. The machine room 14 includes the support arm 1
3 and integrally connected around the annular float 11, and is rotatably supported on the central shaft 21 via bearings 22a and 22b. Further, the machine room 14 is formed in a water-tight manner, and there is no possibility that water may enter the inside. Center shaft 21
Has a plurality of grooves 23 at the lower end thereof,
It is engaged with the ridge 24 formed on the side. In the present embodiment shown in FIG. 8, four concave grooves 23 are formed on the outer periphery of the center shaft 21. The number of the concave grooves 23 is not limited to this. A guide roller 25 is rotatably attached to the tip of the ridge 24, and the guide roller 25 is in contact with the bottom of the groove 23. Therefore, the center shaft 21 moves up and down with the up and down movement of the machine room 14 and the annular float 11. Further, since the concave groove 23 and the ridge 24 are engaged, the support column 16 and the center shaft 21 relatively move in the axial direction like a spline, but cannot rotate. Further, the support column 1 is provided via the guide roller 25.
6 and the central shaft 21 are engaged with each other, so that they can move up and down smoothly. Further, the lower end 14a of the machine room 14 hangs down in a cylindrical shape, and covers the outer periphery of the support column 16 with an interval.

An internal gear 26 is mounted on the inner side wall of the machine room 14. The internal gear 26 and the internal gear 26
The speed increasing mechanism 27 including a gear group meshed with the gears drives the generator 15 to rotate. In the speed increasing mechanism 27, the internal gear 26 that rotates integrally with the machine chamber 14 rotates the small gear 27a meshing with the internal gear 26 according to the gear ratio. Small gear 27a
The large gear 27b fixed to the same shaft 29 rotates at the body speed with the increased small gear 27a. Large gear 27
b is a small gear 1 fixed to the rotor 15a of the generator 15
5b and the speed is further increased. Rotor 15a
Are rotatably supported on the center shaft 21 by bearings 15c. Further, the stator 15d of the generator 15 includes a rotor 15a.
And is mounted on the inner side wall of the machine room 14. The speed increasing mechanism 27 speeds up the rotation of the machine chamber 14 that rotates integrally with the annular float 11 by about 10 times, and rotates the generator 15. Therefore, even if the annular float 11 does not rotate at high speed due to the resistance of water, it is possible to sufficiently generate power.

In the above embodiment, the rotating blades 12
Is described, but it is not always necessary to provide four.

FIG. 10 is a plan view showing a second embodiment of the wind turbine generator according to the present invention, and FIG. 11 is a partially cutaway view showing the second embodiment of the wind turbine generator according to the present invention. FIG. Here, the wind power generator 40 includes rotating blades 12 erected at equal intervals, wheels 31 serving as a support for supporting the rotating blades 12 from below, and a support arm 13 at the center of rotation of the rotating blades 12. A machine room 14, a generator 15 housed in the machine room 14,
And a speed-up mechanism 27 that speeds up the rotation of the machine room and transmits it to the generator 15. That is, in the present embodiment, the rotary wing 12 is supported by the wheels 31 disposed on the lower surface. The support arm 13 is arranged in a cross shape, and a machine room 14 is arranged at the center of rotation. The wheels 31 can roll freely on the ground or on ice. Therefore, even if the windmill has a large diameter, the strength of the support column 32 can be reduced because the wheel 31 supports the windmill from below.

The support column 32 is fixed on the ground or on ice by anchor bolts 33 and the like, and is fixed by a ground fixing pile 34 and a detent 35 buried in the ground. Furthermore, the tip of the rotary wing 12 and the support arm 13
Since it is supported from below by the wheels 31, the support columns 3
2 itself can be reduced. In addition, support arm 1
The three ends are connected and tensioned by the reinforcing arms 36, respectively.

In FIGS. 10 and 12, an arc-shaped sled 37 is attached to the lower end of the support arm 13 and connects each end. The sled 37 forms an arc around the rotation center of the wind power generator 40. The sled 37 may be attached together with the wheel 31 or may be attached alone. In particular, the sled 37 slides on snow or ice, so that the wind power generator 40 can rotate smoothly.

In the present embodiment, the structure of the rotary wing 12, the machine room 14, the generator 15, the mounting angle changing mechanism 17 and the like are the same as those in the first embodiment, so that the detailed description is omitted. The rotary wing 12 is rotatably attached to the tip of the support arm 13. FIG. 12 is an enlarged plane showing the inside of the circle b in FIG. 10, and the rotation angle of the rotor 12 with respect to the support arm 13 can be changed. FIG.
FIG. 14 is a sectional view taken along line ff ′ of FIG. 12. Here, the support arm 13 to which the support shaft 12a is connected
The mounting angle changing mechanism 17 is composed of a disc-shaped cam member 19 and a stopper 20 abutting on the outer peripheral surface of the cam member 19. Further, the support shaft 12a is
It is rotatably attached to the support arm 13 by a and 30b.

As shown in FIGS. 15A and 15B, the cam member 19 is formed in a substantially disk shape and has a concave portion 19a which is cut out concentrically. This recess 19a
In the embodiment shown in FIG. 15B, the support arm 13 is formed within a range of ± 30 degrees with respect to the central axis L. The stopper 20 includes a roller claw 20a urged to abut on a peripheral surface of the cam member 19 by a spring (not shown) and a stopper body 20b supporting the roller claw 20a so as to adjust the urging force of the spring. Have been. Therefore, when the roller claw 20a is present in the recess 19a, the rotating blade 12 connected via the support shaft 12a
It can rotate around the support shaft 12a within a range of 30 degrees. Further, when a force stronger than the urging force of the spring acts on the roller claw 20a, the roller claw 20a can get over the step of the concave portion 19a.

When the rotating blade 12 is at the point A as shown in FIG. 15 (a) in the case of a normal wind speed, the roller claw 20a of the stopper 20 has a cam It is in contact with the end X of the concave portion 19a of the member 19. Therefore, the rotary wing 12 cannot further rotate in the counterclockwise direction around the support shaft 12a, and generates a moment for receiving the wind at this angle and rotating the annular float 11 in the clockwise direction. When the rotary wing 12 reaches the conversion point P according to the rotation of the annular float 11, the direction of the rotary wing 12 becomes parallel to the wind direction, and no rotational moment is generated. P
The point is set at a position rotated clockwise by 30 degrees from point B in the present embodiment. When the rotary wing 12 passes the turning point P, it rotates by wind force, and the roller claw 20 a of the stopper 20 comes into contact with the end Y of the concave portion 19 a of the cam member 19. Therefore, at the turning point P, the rotor 12 is inverted,
A wind is applied to the support arm 13 by receiving the wind on the opposite side to the conventional one, and a clockwise rotational moment is applied to the support arm 13. By repeating such an operation sequentially, each of the rotors 12 that have received the wind is moved to the machine room 14.
Always rotate clockwise.

FIG. 16 shows the operation of the rotor 12 in a strong wind. First, when the rotating blade 12 receives a strong wind at the point A, the roller claw 20a of the stopper 20 overcomes the step of the concave portion 19a of the cam member 19 against the urging force of the spring, and the rotating blade 12 becomes parallel to the wind direction. . The limit at which the roller claw 20a gets over the step of the concave portion 19a can be freely set by adjusting the biasing force of a spring built in the stopper body 20b. Also,
Once the roller claw 20a gets over the step of the concave portion 19a, it freely rolls around the cam member 19,
The rotating wings 12 are always in a direction parallel to the wind direction without opposing the wind direction, and do not give a rotational moment to the support arm 13 and the machine room 14. This mounting angle changing mechanism 17
Can prevent the rotating blades 12 from being damaged in a strong wind, and can maintain a constant rotation speed even in a strong wind. At the point D, since the roller claw 2a is located in the concave portion 19a, when the wind speed returns to a predetermined value or less, it is possible to return to the rotating operation at the time of normal wind shown in FIG.

FIG. 17 shows a wind power generator 40 according to the present invention.
2 is an enlarged vertical sectional view of the machine room 14 of FIG. The machine room 14 is integrally connected by the support arm 13 and the support column 3
2 are rotatably supported via bearings 22a and 22b. Further, the machine room 14 is formed in a water-tight manner, and there is no possibility that water or dust enters the inside. Support column 32
Has a disc-shaped leg 32a at the lower end, and is fixed to the ground or the like with an anchor bolt or the like.

[0030]

Since the present invention has the above-described configuration,
The following effects can be obtained. According to the first aspect of the present invention, the rotating blades erected at equal intervals;
A support for supporting the rotor from below, a machine room disposed at the center of rotation of the rotor via a support arm, a generator housed in the machine room, and a rotatable support for the machine room And a speed increasing mechanism for increasing the speed of rotation of the machine room and transmitting it to the generator, wherein the rotating wings receive wind to integrally rotate the support, the support arm, and the machine room. By rotating the generator, the required strength of the support columns can be reduced even in a large-diameter device.

According to the second aspect of the present invention, a hollow annular float constituting a support, rotating blades erected at equal intervals on the upper surface of the annular float, and a support arm at the center of the annular float through a support arm. A machine room disposed in the machine room, a generator housed in the machine room, a support column rotatably supporting the machine room, and an intensifier for increasing the rotation of the machine room and transmitting the rotation to the generator. Speed generator, and the rotating wings receive wind to rotate the generator by integrally rotating the annular float, the support arm, and the machine room, so that the buoyancy of water can be used as a huge building. In addition, construction costs can be reduced.

According to the third aspect of the present invention, since the support is a wheel, the wheel travels on the ground or ice and supports the load, so that the structure of the support column can be saved without lowering the rotation speed of the windmill. can do.

According to the fourth aspect of the present invention, since the support is a sled, the windmill can be smoothly rotated on snow or ice.

According to the fifth aspect of the present invention, since the support is a combination of a sled and wheels, it is possible to cope with a case where snow falls on the ground.

Further, in the invention according to claim 6, in addition to the structure of the invention described in claim 1, the mounting angle of the rotary wing is variable by a mounting angle changing mechanism, so that it is related to the wind direction. The circular float and the machine room can always be rotated in the same direction.

Further, in the invention according to claim 7, in addition to the structure of the invention described in claim 6, the mounting angle changing mechanism holds the rotating blade in parallel with the wind direction in a strong wind. In addition, it is possible to prevent the rotor blade from being damaged in a strong wind.

Further, in the invention according to claim 8, in addition to the structure of the invention described in claim 2, the support column is configured to be extendable and contractible, so that when the water level goes up and down. However, the annular float, the machine room, and the like do not move up and down in response to this, and no extra load is applied to the support columns.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a wind turbine generator according to the present invention.

FIG. 2 is a sectional view taken along line AA ′ of the wind turbine generator shown in FIG.

FIG. 3 is an enlarged plane showing the inside of the circle a in FIG. 1;

FIG. 4A is a cross-sectional view taken along the line aa ′ of FIG. 3, FIG.
FIG. 4 is a sectional view taken along line bb ′ of FIG. 3.

FIG. 5A is an explanatory view showing a relationship between a rotor and a stopper during normal wind, and FIG. 5B is a plan view of a mounting angle changing mechanism.

FIG. 6 is an explanatory diagram showing the relationship between the rotor and the stopper of the wind turbine generator of the present invention when the wind is strong.

FIG. 7 is an enlarged vertical sectional view of a machine room of the wind turbine generator according to the present invention.

8 is a sectional view taken along line B-B 'in FIG.

FIG. 9 is a partially enlarged view of a guide roller of the wind turbine generator according to the present invention.

FIG. 10 is a plan view showing a second embodiment of the wind turbine generator according to the present invention.

FIG. 11 is a partially cutaway side view showing a second embodiment of the wind turbine generator according to the present invention.

FIG. 12 is an enlarged plane showing the inside of a circle b in FIG. 10;

FIG. 13 is a sectional view taken along line ee ′ of FIG. 12 showing a second embodiment of the wind turbine generator according to the present invention.

14 is a sectional view taken along line f-f 'of FIG.

FIG. 15A is an explanatory view showing a relationship between a rotor and a stopper during normal wind, and FIG. 15B is a partially enlarged view of a guide roller of the wind turbine generator according to the present invention.

FIG. 16 is an explanatory diagram showing a relationship between a rotor and a stopper in a strong wind.

FIG. 17 is an enlarged vertical sectional view of a machine room of the wind turbine generator according to the present invention.

FIG. 18 is a side view showing an example of a conventional gyromill type wind turbine.

[Explanation of symbols]

 10, 40 Wind power generator 11 Annular float 11a Support base 12 Rotor blade 12a Support shaft 13 Support arm 14 Machine room 15 Generator 16 Support post 17 Mounting angle changing mechanism 18 Fixed leg 19 Cam member 20 Stopper 21 Center shaft 22 Bearing 23 Concave Groove 24 Convex ridge 25 Guide roller 26 Internal gear 27 Speed increasing mechanism 28 Bearing 29 Shaft 31 Wheel 32 Support column 33 Anchor bolt 34 Ground fixing pile 35 Detent 36 Reinforcement arm 37 Sledge

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F03D 11/04 F03D 11/04 A

Claims (8)

[Claims] 1. Rotating blades erected at equal intervals, a support for supporting the rotating blades from below, a machine room disposed at the center of rotation of the rotating blades via a supporting arm, and a machine room. And a support column rotatably supporting the machine room, and a speed increasing mechanism for increasing the speed of rotation of the machine room and transmitting it to the generator, wherein the rotating blades generate wind. A wind power generator, wherein the generator is rotated by integrally rotating the support, the support arm, and the machine room upon receiving. 2. A hollow annular float that constitutes the support, and rotating blades that are erected at equal intervals on the upper surface of the annular float.
A machine room disposed at the center of the annular float via a support arm, a generator housed in the machine room, a support column rotatably supporting the machine room, and an increase in rotation of the machine room. A speed-increasing mechanism for transmitting to the generator at a high speed, wherein the rotor is rotated by integrally rotating the annular float, the support arm, and the machine room in response to wind. The wind power generator according to claim 1. 3. The wind power generator according to claim 1, wherein the support is a wheel. 4. The wind power generator according to claim 1, wherein the support is a sled. 5. The wind power generator according to claim 1, wherein the support is a combination of a sled and a wheel. 6. An installation angle of the rotary wing is variable by an installation angle changing mechanism.
The wind turbine generator according to any one of claims 1 to 5. 7. The wind power generator according to claim 6, wherein the attachment angle changing mechanism holds the rotating blade in parallel with the wind direction in a strong wind. 8. The wind power generator according to claim 2, wherein the support column is configured to be able to expand and contract with a vertical change in the water surface.