KR101318693B1 - V-arm type support and assembling structure of vertical axis wind power generator - Google Patents

V-arm type support and assembling structure of vertical axis wind power generator Download PDF

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Publication number
KR101318693B1
KR101318693B1 KR1020130012156A KR20130012156A KR101318693B1 KR 101318693 B1 KR101318693 B1 KR 101318693B1 KR 1020130012156 A KR1020130012156 A KR 1020130012156A KR 20130012156 A KR20130012156 A KR 20130012156A KR 101318693 B1 KR101318693 B1 KR 101318693B1
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KR
South Korea
Prior art keywords
blade
arm
generator
coupled
vertical axis
Prior art date
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KR1020130012156A
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Korean (ko)
Inventor
신용오
Original Assignee
주식회사 웨스텍
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Priority to KR1020130012156A priority Critical patent/KR101318693B1/en
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Publication of KR101318693B1 publication Critical patent/KR101318693B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

PURPOSE: A vertical-axis power generation device with a V-arm structure is provided to remove a rotary shaft because blades and a generator are connected by coupling the outer bent and protruded circumference of upper and lower rotary plates integrated with the generator to blade arms. CONSTITUTION: A vertical-axis power generation device with a V-arm structure comprises an upper rotary plate (11), a lower rotary plate (12), blade arms (30), and blades (20). The upper and lower rotary plates are coupled to the top and the bottom of a generator (10) and have protruded portions bent from the outer circumference of the upper and lower rotary plates at regular intervals. Each blade arm comprises an arm body and a blade holder with an insertion groove. One end of the arm body is coupled to the protruded portion of the upper or lower rotary plates. The blade holder is bent from the other end of the arm body. The blades are inserted in the insertion grooves of the blade holders and are coupled to the blade holders by stators and bolts.

Description

V-arm type support and assembling structure of vertical axis wind power generator}

The present invention relates to a V-shaped support structure of the blade arm in a vertical axis wind turbine, and more particularly, by bending a part of the outer circumferential surface of the upper and lower rotary plates integrally coupled with the generator to combine with the blade arm to combine the blade and the generator. By tightening, it is possible to minimize the eccentricity caused when using the rotating shaft by minimizing the need for the rotating shaft, and to minimize the bolting work which is one of the difficulties in assembling the wind power generator. It relates to a vertical axis wind power generator.

Wind power is to generate electricity by transmitting the rotational force generated by rotating the propeller or blades to the generator using the wind, divided into horizontal axis wind power generation and vertical axis wind power generation according to the direction in which the propeller or blade is installed. Although the power generation efficiency is relatively high, there is a disadvantage in that the structure is complicated because the direction of the rotor must be changed according to the direction of the wind and the device must be connected to the generator by installing a device that converts the horizontal rotational power into the vertical rotational power. Since the blade is installed along the longitudinal direction of the generator and generates electric power by receiving the rotational force of the rotating shaft is relatively simple structure.

The vertical axis wind power generator has the advantage that the structure is simple and can maintain a predetermined torque regardless of the wind direction, but the blade support structure,

First, if the angle of attack (AOA) is not correct, the output will be reduced, so it must be combined at the correct angle.If there is no clearance in the insertion groove formed in the blade arm, the blade cannot be easily inserted, so the blade is not easily joined. I have a problem,

Second, the torsional moment is generated by the inertia force generated during rotation and the lift & drag force generated in the blade, and must be able to withstand the torsional vabration resulting from it.

Third, the structure should be able to prevent fatigue failure due to vibration which may occur due to deflection of the blade arm due to the load of the blade,

Fourth, there is a problem that fine vibration occurs due to the fine eccentricity of the rotating shaft, and this fine vibration shortens the bearing life holding the generator inner shaft bound to the lower part of the rotating body for a long time. The difficulty is to be able to solve the same problem.

Looking at the support structure and the fastening structure of the blade in the vertical axis wind power generation device appeared so far, Patent Application No. 2011-13575 "Safe installation structure of the vertical axis wind power generator" developed and filed by the applicant of the present invention, the rotating shaft The blade arm is fixedly installed at the top and the bottom, and the generator is mounted on the lower part of the rotating shaft. As the wind turbine is actually manufactured, it is inserted into grooves formed at each end of the blade arm spaced apart from the upper and lower parts. It is difficult to insert the blade correctly, and the longer the blade is, the more technically difficult it becomes.In particular, if there is no clearance in the insertion groove, the insertion of the blade is difficult.If the clearance is given, the angle of attack does not match, resulting in a decrease in output. Has occurred.

The applicant filed a patent application No. 2012-34310 "V-shaped support structure of vertical wind turbine blade" while continuing research and development in order to solve this problem, which is inside the front end of the blade arm without using a rotating shaft. It is a method of fastening the blades with bolts using a holder, an outer holder, and a support plate. As it is actually manufactured and installed, it is possible to minimize eccentricity error and vibration generated during rotation because the rotating shaft is not used. Since the upper and lower sides are separated, not only the bolts should be fastened but also the blade arms and the blades are fastened by bolts through the inner holder, the outer holder, and the support plate. It was hard, but there were many problems with safety.

The present invention has been made to solve the above problems, an object of the present invention, by rotating a portion of the outer peripheral surface of the upper and lower rotary plate integrated with the generator by engaging with the blade arm to engage the blade and the generator, By minimizing the eccentricity caused by the use of the rotating shaft, it is possible to reduce the bearing life and rotational vibration caused by the eccentricity of the generator and minimize the bolting work, which is one of the difficulties in assembling the wind power generator. It is to provide a vertical axis wind turbine with a V-arm structure that is easy to transport and field assembly.

In order to solve the above problems, the vertical axis wind turbine generator of the V-arm structure according to the present invention is a structure in which a blade and a generator are fastened by a blade arm, and the vertical shaft wind turbine generator has a disc shape, and the disc is the disc. An upper rotary plate and a lower rotary plate which are respectively coupled to the upper and lower ends of the generator, each having a protrusion bent so as to protrude at an equal interval from the outer circumferential surface of the original plate and inclined; A blade-shaped arm main body whose one end is coupled to the protrusions of the upper rotating plate and the lower rotating plate, respectively, and a blade which is bent at the other end of the arm main body and integrally formed, and has an insertion groove formed therein. A blade arm composed of a holder; It is inserted through the insertion groove formed in the blade holder which is positioned in pairs at the top and bottom, respectively, and comprises a blade that is coupled to the blade holder by inserting the stator and fastening the bolt, the arm body and the upper rotating plate The portion that is to be combined with the protrusion of the lower rotating plate is bent by extending both ends of the arm body to form a bent portion to act as a reinforcing member of the arm body, attaching the reinforcement plate to the bent portion between the arm body and the blade holder Combined, characterized in that the blade arm located in the upper and lower portion of the generator is disposed in a V-shape and inverted V-shape respectively around the generator as a whole.

delete

Preferably, the top and bottom of the blade is further coupled to the plate cap (cap), the cap is coupled to the top and bottom of the blade and the bolt, stator and wire, the width of the cap is It is wider than the cross section.

In the vertical shaft wind turbine generator having a V-arm structure according to the present invention having the above characteristics, the blade arm is disposed in the V-shape to fasten the blade and the generator without the rotating shaft instead of fixedly installing the blade arms on the upper and lower portions of the rotating shaft, respectively. Because of this, not only has a strong fixing force mechanically, but also vibration is suppressed when the blade rotates, thereby minimizing vibration. In addition, since the projecting part formed by projecting and bending a part of the outer circumferential surface of the upper and lower rotating plate integrated with the generator is directly coupled with the blade arm, the blade and the generator are fastened, thereby minimizing the eccentricity error generated when the rotating shaft is used. Therefore, it is possible to suppress the bearing life shortening and rotational vibration generated inside the generator due to the eccentricity.

In addition, since there is no need for a separate inner holder, an outer holder and a support plate to fix the blade when assembling and swiveling the rotor plate and the blade arm, the blade arm and the blade, the bolt fastening points are significantly reduced (three blades). 30 bolts, 40 bolts for 40 bolts, 50 bolt bolts for 5 bolts are reduced. .

In addition, by combining the cap of the plate (cap) on the top and bottom of the blade respectively to block the holes formed in the top and bottom of the blade, while suppressing the occurrence of vibration during the rotation of the blade to stabilize and at the same time lift and drag Will be generated. In addition, the bent portion acts as a reinforcing plate by bending the blade arm coupled with the protrusion of the rotating plate along the length direction, thereby causing the deflection due to the weight of the blade arm due to the load of the blade and the fatigue failure due to the variation and vibration. failure can be greatly improved.

1 is a view showing a vertical axis wind power generator of the present invention.
2 is a view showing a state in which the generator and the rotating plate is coupled.
3A and 3B show an embodiment of a blade arm.
Figure 4a is a view showing a cap (cap) coupled to both ends of the blade.
4B is a view for explaining a coupling relationship between a blade and a cap.

The biggest technical features of the vertical axis wind turbine of the V-arm structure of the present invention, first, the protrusions bent at equal intervals on the outer circumferential surface of the upper and lower rotary plate integrated with the generator combined with the blade arm to combine the blade and the generator By tightening, it eliminates the need for the rotating shaft, minimizing the eccentricity and vibration generated when using the rotating shaft.

Secondly, the cap is coupled to the upper and lower ends of the blade, and the bent portion is formed at the portion where the blade arm is coupled with the protrusion of the rotary plate, thereby preventing the blade arm from sagging, fatigue breakage due to the shift and vibration, and rotational stability. Significantly improved.

The vertical axis wind power generator of the present invention is to fasten and fix the blade and the generator by the blade arm without the rotating shaft, the generator 10 and the upper and lower rotating plate (11, 12) is a power unit and the blade 20, Is configured by directly coupling the blade arm 30 is coupled, the blade arm 30 located on the top and bottom of the generator 10 as a whole when viewed in the V- and reverse V-shape around the generator 10 as a whole Placed and positioned (see FIG. 1).

The upper rotary plate 11 and the lower rotary plate 12 are in the shape of a disc, are coupled to the top and bottom of the generator 10, respectively. As shown in FIG. 2, protrusions 111 and 121 which protrude at equal intervals from the outer circumferential surface of the disc and bent to be slightly inclined are formed, and the protrusions 111 and 121 are arm bodies 31 of the blade arm 30. And the fastening means such as bolts. As such, since the protrusion and the blade arm formed integrally with the rotating plate are directly coupled to each other, a separate holder and a support plate or a reinforcing plate for coupling the rotating plate and the blade arm are not required, thereby reducing the number of parts.

The blade arm 30 is a structure in which the arm main body 31 and the blade holder 32 are integrally formed. The arm main body 31 is a plate-shaped member, one end of which is formed of an upper and lower rotating plate. Each protrusion 111 and 121 is fixedly coupled by a fastening means such as a bolt.

Although the arm main body 31 is a plate-shaped member, it is also possible to combine the plate-shaped member with the protrusions 111 and 121 as it is, but the arm main body 31 of the part engaged with the protrusions 111 and 121 of the rotating plate in the longitudinal direction By bending both ends by a predetermined length along the length to form the bent portion 33, the bent portion 33 serves as a reinforcing member of the arm main body 31, which is a plate-like member, the arm main body 31 is Deflection due to the weight of the blade arm 30 and the occurrence of fatigue breakage due to variation and vibration can be prevented, thereby significantly improving rotational stability. Although the length of the bent part 33 may be formed in the arm main body 31 full length, even if it forms only a fixed length, the effect can fully be exhibited.

The blade holder 32 is formed integrally with the arm main body 31, which is bent at the other end of the arm main body 31 (referring to the opposite end of the portion engaged with the protrusion) and integrated with the arm main body 31. The blade holder 32 is formed with an insertion groove through which the blade 20 is to be penetrated (see FIG. 3A), and the blade holder 32 is paired with the top and the bottom of the generator 10. Will be deployed. In addition, as shown in Figure 3b, by bending the reinforcement plate 34 is further attached to the bent portion of the blade holder 32 by combining to reinforce the bent angle due to the spring back (spring back) is bent or bent portion It can prevent the phenomena destroyed by sag and structural weakness.

The blade 20 is fastened by fastening means such as a blade holder 32 and a bolt by inserting a stator to be fixed. The through holes are inserted into insertion grooves formed in the blade holders 32 which are positioned in pairs at the top and the bottom, respectively. As shown in FIG. 4B, a hollow part is formed along the longitudinal direction, and both ends thereof have bolt holes for fastening the cap 21 with bolts. (Not designated) is formed.

Since the blade 20 has a hollow portion formed at both ends of the structure, resistance and vibration are generated due to the hollow portion when the blade rotates, so that the cap 21 is coupled to the top and bottom of the blade 20 to block the hole of the hollow portion. In this way, by blocking the hole of the hollow portion as described above to stabilize and suppress the occurrence of vibration during the rotation of the blade to generate a lift and drag.

As shown in Figs. 4A and 4B, it is preferable that the cap 21 is formed of a plate-like member so that the width thereof is wider than the cross section of the blade 20. The cap 21 is formed with a bolt hole 211 for fastening the blade 20 with the bolt, and inserting and combining the stator 22 while fastening with the blade 20 with the bolt. For this purpose, it is preferable to fasten and fix the blade 20 and the wire 23 at the front and rear ends of the blade 20. In order to fasten with the wire 23, the bolt fastening hole 212 for wire fastening should be further formed at the front end and the rear end of the cap 21, and the bolt for fastening the wire 23 to the blade 20 should be fastened. do.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Various modifications and variations will be possible without departing from the spirit of the invention. Therefore, the scope of the present invention should be construed as being covered by the scope of the appended claims, and technical scope within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

10: generator 11: phase rotation plate
12: lower turn plate
20: blade 21: cap
22: stator 23: wire
30: blade arm 31: arm body
32: blade holder 33: bend
34: reinforcement plate

Claims (5)

In the vertical axis wind power generator in which the blade and the generator are fastened by a blade arm,
The vertical-axis wind power generator includes:
An upper rotating plate and a lower rotating plate which are disc-shaped, each of which is coupled to an upper end and a lower end of the generator, and has protrusions bent so as to be inclined at equal intervals from the outer circumferential surface of the disc;
A blade-shaped arm main body whose one end is coupled to the protrusions of the upper rotating plate and the lower rotating plate, respectively, and a blade which is bent at the other end of the arm main body and integrally formed, and has an insertion groove formed therein. A blade arm composed of a holder;
A blade inserted through and inserted into an insertion groove formed in the blade holder which is paired with each other at an upper portion and a lower portion, and inserted into a stator and fastened to a bolt to be coupled to the blade holder;
, ≪ / RTI >
The portion where the arm main body is coupled to the protrusions of the upper and lower rotating plates extends both ends of the arm body to bend to form a bent portion to serve as a reinforcing member of the arm body, and to bend between the arm body and the blade holder. Attach the reinforcement plate to the
Vertical arm wind turbine generator of V-arm structure, characterized in that the blade arm located in the upper and lower portion of the generator as a whole, the V-arm structure and the inverted V-shape around the generator.
delete The method of claim 1,
The upper and lower ends of the blade are further coupled to the cap of the plate (판), the cap is the vertical axis of the V-arm structure, characterized in that the upper and lower ends of the blade and the bolt and the stator and wire Wind turbines.
The method of claim 3,
The width of the cap, the vertical axis wind power generator of the V-arm structure, characterized in that wider than the cross section of the blade.
delete
KR1020130012156A 2013-02-04 2013-02-04 V-arm type support and assembling structure of vertical axis wind power generator KR101318693B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101547993B1 (en) * 2014-03-27 2015-08-27 진동진 Apparatus for measuring direction and velocity of wind using ultrasonic by self power generating
KR101591858B1 (en) 2015-02-26 2016-02-04 주식회사 웨스텍 V-arm type support and assembling structure using laminated blade arm of vertical axis wind power generator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110030513A (en) * 2011-01-17 2011-03-23 (주)하이에너지 코리아 Wind generator
KR101113594B1 (en) * 2011-04-20 2012-02-22 씨에이코리아(주) Generator combined vertical-axis wind turbine
KR20120094223A (en) * 2011-02-16 2012-08-24 주식회사 웨스텍 Structure of safe installation for vertical axis wind turbine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110030513A (en) * 2011-01-17 2011-03-23 (주)하이에너지 코리아 Wind generator
KR20120094223A (en) * 2011-02-16 2012-08-24 주식회사 웨스텍 Structure of safe installation for vertical axis wind turbine
KR101113594B1 (en) * 2011-04-20 2012-02-22 씨에이코리아(주) Generator combined vertical-axis wind turbine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101547993B1 (en) * 2014-03-27 2015-08-27 진동진 Apparatus for measuring direction and velocity of wind using ultrasonic by self power generating
KR101591858B1 (en) 2015-02-26 2016-02-04 주식회사 웨스텍 V-arm type support and assembling structure using laminated blade arm of vertical axis wind power generator

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