KR20090068484A - Shaft for a vertical axis wind power generator with multiple blades - Google Patents

Abstract

A powered axle apparatus for a multi-stage wind-power generation in a vertical axis mode is provided to transmit torque of each blade unit effectively to the powered axle. A powered axle apparatus for a multi-stage wind-power generation in a vertical axis mode is as follows. The blade unit more than two stage is perpendicularly laminated to perpendicular the powered axle apparatus of the multi-stage wind power installation at least. The perpendicular powered axle apparatus of the multi-stage wind-power generator comprises the vertical axis(110), the axle housing(120), and rotors(131, 132) more than 2 shift a plurality of plates(141, 142, 143). The vertical axis has axis gears(111, 112) more than two stages according to the axial direction. The axle housing comprises idle gears(121, 122) more than two stages. The idle gear surrounds the vertical axis and the axis gear and interlocking are made. The rotor is positioned in the outer circumference of the axle housing. The rotor comprises internal gears(131a, 132a) inscribing with the idle gear and are engaged. In the rotor, a blade is fixed.

Description

Shaft for a vertical axis wind power generator with multiple blades}

The present invention relates to a power shaft device for multi-stage wind power generation of a vertical shaft type, and more particularly, to a power shaft device for effectively transmitting the rotational driving force of the blade to the power shaft in the vertical shaft type wind power generator comprising two or more blade units. It is about.

In general, wind power generation is classified into a horizontal axis type and a vertical axis type according to the axial configuration of the rotor blades.

In general, in the horizontal axis type, the rotor installed on the horizontal axis is composed of a blade having an airfoil-shaped cross section, and rotational power is obtained by using lift force among aerodynamic forces generated in the blade by air flow flowing around the blade. Therefore, in the horizontal axis type where lift type blades are mainly applied, airfoils with high lifting ratio should be selected for blade design to increase efficiency. Therefore, much effort is required for design and manufacturing, and the equipment is expensive, so Compared with the economical disadvantages.

In addition, in the horizontal axis type propeller-type blades are operated only when the wind speed is strong for the power output, so the power generation efficiency is low in the breeze environment as inland in Korea. In addition, the horizontal wind power generation has a disadvantage in that the economic efficiency is lower than the generation amount due to the expensive equipment and facility investment costs.

On the other hand, in the vertical wind power generation, the blade is installed on the vertical axis, and among the aerodynamic forces acting on the blade, power is generated mainly by converting the resistance (or drag) into rotational force, so that the shape of the wing is higher than lift. Simple and very easy to manufacture has the advantage of low production cost.

The applicant of the present invention proposes a vertical axis type wind power generator in 2007 Patent Registration No. 776319 (registered on November 7, 2007).

1 is a view showing a conventional vertical axis wind power generator, a conventional vertical axis wind turbine is a plurality of blades are rotated by the wind is installed in the casing (10).

The casing 10 includes a body portion 11 enclosing the blade so as to prevent backwind to the blade, an inlet guide portion 12 of a narrow tube type having a narrow cross-sectional area to increase the wind speed transmitted to the blade, and Located on the opposite side of the inlet guide portion 12 consists of an outlet guide portion 13 of the expansion tube type fixed to the body portion (11).

Therefore, the wind flowing along the inlet guide portion 12 exits along the outlet guide portion 13 after rotating the blade installed in the body portion 11.

The power shaft 21 to which the blade is fixed is connected to a well-known alternator 30 for generating electricity or a battery to which a converter is connected.

The rudder 14 is fixed to the casing 10, and the rudder 14 is installed on the casing 10 in parallel with the opening direction of the inlet guide part 12, thereby casing by the rudder 14 according to the wind direction. Rotation of 10 causes the opening of the inlet guide portion 12 to always be in parallel with the wind direction.

Figure 2 is a view showing a cross-sectional view of the casing in the wind power generator of the present invention, the power shaft 21 is located in the center of the body portion 11, the power shaft 21 is composed of a plurality of blades The blade unit 40 is provided.

In the conventional vertical shaft type wind power generator configured as described above, a part of the blade is blocked by the back wind by the casing 10, so that the rotational force of the blade can be increased as compared with the case where the blade is directly exposed to the outside.

However, such a conventional vertical axis type wind power generator has a limitation that a blade unit is composed of one stage to obtain a large amount of power generation.

Therefore, in the conventional vertical axis type wind power generator, an effective method for increasing the amount of power generation is preferably a structure in which the blade units are vertically stacked by forming a plurality of blade units.

The present invention is to configure the vertically multi-stacked blade units in order to increase the amount of power generated in the vertical wind power generator in the conventional vertical axis system to effectively transmit the rotational force generated in each blade unit to the power shaft To provide a multi-stage wind power drive shaft device.

The multi-stage wind turbine power shaft device of the present invention is a vertical power shaft device of a multi-stage wind power generator in which at least two or more blade units are vertically stacked, the vertical shaft having two or more shaft gears along the axial direction. and; A celebratory housing having two or more idle gears that are engaged with each of the shaft gears while surrounding the vertical shaft; Two or more internal gears positioned on an outer circumferential surface of the celebration housing and internally engaged with each of the idle gears and fixed with a plurality of blades; And plates extending vertically from the axial housing to partition the internal gears.

Power shaft device for multi-stage wind power generation of the vertical axis type of the present invention, in the manufacture of a wind power generator in which two or more blade units are vertically stacked, so that the rotational force of each blade unit can be effectively transmitted to the power shaft for large capacity power generation It is an invention that has the effect of obtaining a wind power generator.

3 to 5 (a) (b) (c) is a view showing a multi-stage wind turbine power shaft device of the vertical axis method of the present invention, Figure 3 is a multi-stage wind turbine power shaft device of the vertical axis method of the present invention. 4 is a cross-sectional view taken along the line AA of Figure 3, Figure 5 (a) (b) (c) is a view showing another embodiment of a multi-stage wind turbine power shaft device of the vertical axis type of the present invention.

First Embodiment

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The multi-stage wind turbine power shaft device of the present invention is a vertical power shaft device of a multi-stage wind turbine, in which at least two or more blade units are vertically stacked, two or more shaft gears 111 along the axial direction. A vertical axis 110 having a 112; A celebratory housing 120 having two or more idle gears 121 and 122 wrapped around the vertical shaft 110 and engaged with each of the shaft gears 111 and 112; Located on the outer circumferential surface of the celebration housing 120 is provided with internal gears (131a, 132a) to be engaged in engagement with each of the idle gears 121, 122, two stages to which the blade (1a) (1b) is fixed More rotors (131, 132); It is characterized in that it comprises a plurality of plates 141, 142, 143 extending vertically from the celebration housing 120, the rotors 131, 132 are seated.

The vertical shaft 110 is installed perpendicular to the ground, and the celebration housing 120 is provided outside the vertical shaft. It is apparent that a well-known bearing may be provided between the vertical shaft 110 and the shaft housing 120 so that rotation of the vertical shaft 110 is smoothly performed.

The vertical shaft 110 is connected to a battery to which a known alternator or converter for generating electricity is connected.

The vertical shaft 110 is provided with two or more shaft gears 111 and 112 along the axial direction.

The celebration housing 120 is provided with two or more idle gears 121 and 122 which are engaged with the shaft gears 111 and 112, respectively.

The idle gears 121 and 122 are rotatably provided in the celebration housing 120 by respective pivot shafts 121a and 122a.

The rotors 131 and 132 are located on the outer circumferential surface of the celebration housing 120, and are provided with internal gears 131a and 132a inscribed with the idle gears 121 and 122, respectively. A blade unit made of blades is fixed.

Therefore, the rotational driving force of the blade is sequentially transmitted to the internal gear, the idle gear and the shaft gear of the rotor to drive the vertical shaft 110 to rotate.

Between the rotors 131 and 132 are provided plates 141, 142, 143 extending vertically from the housing 120 to partition the upper and lower neighboring blade units 1a, 1b. .

These plates 141, 142, 143 serve as a casing of the wind power generator in which the blade unit is accommodated, and the rotors 131, 132 are seated and supported.

In particular, a well-known first bearing 151 is provided between the plate and the rotor, so that the rotational drive of the rotor can be performed smoothly.

In addition, a well-known second bearing 152 is provided between the rotors and the celebratory housing, so that the rotational drive of the rotor is smoothly performed.

On the other hand, in the multi-stage wind turbine power shaft device of the vertical axis method of the present invention, the idle gears are characterized in that the rotation axis is arranged symmetrically around the vertical axis.

5 (a) (b) (c) is a view showing another embodiment of a power shaft device for a multi-stage wind power generation of the vertical axis method of the present invention.

5 (a) (b) (c), the idle gears are arranged rotationally symmetrically with each other in the configuration of two or more blade units, so that when the vertical axis is driven by eccentricity that may occur when the blades rotate. Power loss can be prevented from occurring.

For example, referring to Figure 5 (a), in the configuration of the two-stage blade unit it is preferable that the two idle gears 121, 122 are located in the opposite direction (180 °) to each other.

On the other hand, in the configuration of the three-stage blade unit as shown in Figure 5 (b) it is preferable that the three idle gears 121, 122, 123 are arranged to have an angle of 120 ° to each other.

5 (c) shows a preferred example of the four-stage blade unit configuration, it is preferable that the four idle gears 121, 122, 123, 124 are arranged to have an angle of 90 ° to each other.

Second Embodiment

Next, the multi-stage wind turbine power shaft device of the vertical axis method according to the second embodiment of the present invention, in the vertical power shaft device of the multi-stage wind turbine generator in which at least two or more blade units are stacked vertically, Therefore, the vertical shaft 210 having two or more shaft gears 211; An axis column 220 installed in parallel with the vertical axis 210; Two or more rotors (231, 232) having internal gears (231a) (232a) meshed with each of the shaft gears (211, 212) and engaged with each other; A plurality of plates (241, 242, 243) extending vertically from the shaft (220) to seat the rotors (231, 232); It characterized in that it comprises a bearing member 241 provided between the shaft pillar 220 and the rotors (231, 232).

The vertical shaft 210 is installed perpendicular to the ground and rotates in the axial direction. The vertical shaft 210 is connected to a battery to which a well-known alternator or a converter for generating electricity is connected.

The vertical shaft 110 is provided with two or more shaft gears 211 and 212 along the axial direction.

The shaft column 220 is fixed to the ground in parallel with the vertical axis 110, and serves as a structure for supporting the casing, or other accessories attached to the wind turbine.

The rotors 231 and 232 rotate about the shaft column 220. Inside the rotors 231 and 232 are internal gears 231a and 232a which are inscribed with each of the shaft gears 211 and 212 on the vertical shaft 110, and a blade unit having a plurality of blades on the outside thereof. Is provided.

In the shaft column 220, plates 241, 242, and 243 are provided between the rotors 231 and 232 so that the rotors 231 and 232 can be rotated vertically. do.

These plates 241, 242, 243 may serve as a casing of the wind power generator in which the blade unit is accommodated.

Bearing members 241 and 242 are provided between the shaft column 220 and the rotors 231 and 232, respectively, in which the rotors 231 and 232 are shafts. The rotors 231 and 232 are supported to allow smooth rotational driving with the pillar 220 as an axis.

Obviously, the upper and lower portions of the rotor are provided with well-known bearings 251 for assisting the smooth rotational driving of the rotor while reducing friction with the plates.

In the multi-stage wind turbine power shaft device according to the second embodiment of the present invention as described above, the rotational driving force of the blade is transmitted to the shaft gear through the internal gear of the rotor, so that the power generation is performed while the vertical shaft 210 is driven to rotate. Is done.

In the above embodiment, in order to help the understanding of the present invention has been described with only two-stage blade unit configuration, it is obvious that the embodiment of the present invention can be applied equally to the configuration of two or more blade units, the above embodiment of the present invention As an example for describing the technical idea concretely, the scope of the present invention is not limited to said drawing or embodiment.

1 is a view showing a conventional vertical axis wind power generator,

Figure 2 is a view showing a cross-sectional side view of the casing in the conventional vertical axis wind turbine,

3 is a view showing a multi-stage wind turbine power shaft device of the vertical axis method of the present invention,

4 is a cross-sectional view taken along the line A-A of FIG.

Figure 5 (a) (b) (c) is a view showing another embodiment of a power shaft device for a multi-stage wind power generation system of the vertical axis method of the present invention.

6 is a view showing another embodiment of a multi-stage wind turbine power shaft device of the vertical axis method of the present invention,

7 is a cross-sectional view taken along the line B-B in FIG.

<Explanation of symbols for the main parts of the drawings>

110: vertical axis 111, 112: shaft gear

120: celebration housing 121, 122: children gear

131, 132: rotor 131a, 132a: internal gear

141, 142, 143: plate

Claims (3)

In the vertical power shaft unit of a multi-stage wind power generator in which at least two or more blade units are stacked vertically, A vertical axis having two or more stage gears along the axial direction; A celebratory housing having two or more idle gears that are engaged with each of the shaft gears while surrounding the vertical shaft; At least two rotors positioned on an outer circumferential surface of the celebration housing and provided with an internal gear meshed with each of the idle gears and fixed with a blade; Vertical axis type multi-stage wind turbine power shaft device characterized in that it comprises a plurality of plates extending vertically from the celebration housing, the rotor is seated. The power shaft device of claim 1, wherein the idle gears are arranged rotationally symmetrically about the vertical axis. In the vertical power shaft unit of a multi-stage wind power generator in which at least two or more blade units are stacked vertically, A vertical axis having two or more stage gears along the axial direction; An axis pillar installed in parallel with the vertical axis; At least two rotors provided with internal gears meshed with each of the shaft gears and fixed to the blades; A plurality of plates extending vertically from the shaft column to seat the rotors; Multi-stage wind turbine power shaft device characterized in that it comprises a bearing member provided between the shaft pillar and the rotor.

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