CN110410274B - Parallel vertical axis wind power generation device - Google Patents

Parallel vertical axis wind power generation device Download PDF

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Publication number
CN110410274B
CN110410274B CN201910758385.0A CN201910758385A CN110410274B CN 110410274 B CN110410274 B CN 110410274B CN 201910758385 A CN201910758385 A CN 201910758385A CN 110410274 B CN110410274 B CN 110410274B
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China
Prior art keywords
chain
driven wheel
generator
rotating shaft
wind turbine
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CN201910758385.0A
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Chinese (zh)
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CN110410274A (en
Inventor
廖力达
肖勃
凌宇亮
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Changsha University of Science and Technology
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Changsha University of Science and Technology
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Priority to CN201910758385.0A priority Critical patent/CN110410274B/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
    • F03D15/00—Transmission of mechanical power
    • 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 
    • F03D3/02—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having a plurality of rotors
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/30—Wind power
    • 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)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

The application provides a tandem vertical axis wind power generation device, which comprises blades, a wind turbine rotating shaft, an extension shaft, a chain wheel, a driven wheel, a generator and the like. The wind energy is absorbed by a plurality of groups of blades in a row, the blades drive a rotating shaft of a wind turbine to transmit kinetic energy to the chain wheels, the chain wheels drive the chains to drive the driven wheels to rotate, and the driven wheels drive the rotating shaft of the generator to rotate to generate electricity. The invention adopts a plurality of groups of blades to drive one generator, thus saving more cost compared with the use of a plurality of independent wind turbines; the rotating shaft of the generator is not directly connected with the rotating shaft of the wind turbine, and when the rotating speed of the blades fluctuates, the running stability of the generator is not affected. The invention is suitable for being installed on open places such as flat roofs of houses and the like, can increase the number of blade groups according to requirements to increase the power generation power, and can meet the power consumption requirements of families or unit parts.

Description

Parallel vertical axis wind power generation device
Technical Field
The invention relates to the field of wind power generation, and provides a row vertical axis wind power generation device with a plurality of groups of blades sharing one generator, which can increase the number of the blade groups according to the space and the power demand of a site to increase the power generation power, is suitable for being installed in open sites such as flat tops of houses and the like, and can meet the power demand of families or units.
Background
With the popularization of the application of wind power generation technology, more and more small wind power generation equipment enters the lives of people, and a plurality of residents and units install the small wind power generation equipment on roofs or on vacant grounds. However, a single small-sized wind power generation device cannot meet the power consumption requirement, the cost of adopting a plurality of small-sized wind power generation devices is too high, and the residential area cannot adopt medium-sized and large-sized wind power generation devices due to safety considerations.
Disclosure of Invention
The present invention aims to solve the above technical problem at least to some extent. Therefore, the invention provides the row vertical axis wind power generation device with a plurality of groups of blades sharing one generator, which can increase the number of the blade groups and increase the power generation power according to the field space and the power consumption requirement. The requirement of power increase can be met, and meanwhile, the cost is effectively controlled without increasing the number of the generators.
The technical scheme adopted by the invention for solving the technical problems is as follows: the wind turbine generator comprises blades, a wind turbine rotating shaft, a support, a base, an extension shaft, a chain wheel, a driven wheel and a generator; the blades are connected in rows and output kinetic energy to a generator together; the lower end of the rotating shaft of the wind turbine is fixedly connected with an extension shaft, and the extension shaft is connected with a chain wheel; the chain adopts a detachable structure, and can be quickly lengthened so as to add a chain wheel in the chain; a plurality of chain wheels drive the chain to rotate together, and power is transmitted to the driven wheel through the chain; the tooth-shaped curve of the driven wheel is designed asymmetrically, one side of the tooth-shaped curve is a linear profile, when the rotating speed of the chain is slower than that of the driven wheel due to wind speed fluctuation, the rotation of the driven wheel is not influenced by the chain, and the driven wheel drives the rotating shaft of the generator to be still kept at a high rotating speed so as to obtain larger generating capacity.
Furthermore, the rotating shaft of the wind turbine is supported by a support and can freely rotate in the support, and the support is fixed on the base.
Further, the chain wheel, the driven wheel and the generator are all arranged inside the base.
The invention has the beneficial effects that: the chain adopts a detachable structure, so that the chain can be quickly lengthened to add a chain wheel in the chain, and further, matched blades are added to obtain larger wind energy input, and the power generation power is improved; a plurality of groups of blades share one generator, so that the cost is effectively reduced; the tooth-shaped curve of the driven wheel adopts an asymmetric design, the rotation of the driven wheel is not influenced by the fluctuation of the rotating speed of the chain, and the stability of power generation is ensured.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of the transmission of the present invention;
fig. 3 is a schematic view of the outer shape of the driven wheel in the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 3, the tree-shaped wind driven generator of the invention comprises blades (1), a wind turbine rotating shaft (2), a support (3), a base (4), an extension shaft (5), a chain (6), a chain wheel (7), a driven wheel (8) and a generator (9). The blades (1) are connected in rows and output kinetic energy to a generator (9) together; the blade (1) is connected with a wind turbine rotating shaft (2) and is connected with a chain wheel (7) through an extension shaft (5) fixedly connected with the lower end of the wind turbine rotating shaft (2); the plurality of chain wheels (7) and the chain (6) form a connecting traditional system, the plurality of chain wheels (7) drive the chain (6) to rotate together, and the chain (6) drives the driven wheel (8) to rotate so as to transmit power to the driven wheel (8); the chain (6) adopts a detachable structure, the chain can be quickly lengthened so as to add a chain wheel (7) in the chain (6), and the matched blades are added to obtain larger wind energy input, so that the power generation power is improved; as shown in fig. 3, the tooth-shaped curve of the driven wheel (8) adopts an asymmetric design, wherein the tooth-shaped curve on one side is a linear profile, when the rotation speed of the chain (6) is slower than that of the driven wheel (8) due to wind speed fluctuation, the rotation of the driven wheel (8) is not influenced by the chain (6), and the driven wheel (8) drives the rotating shaft of the generator (9) to still keep at a high rotation speed so as to obtain a larger generated energy and ensure the working stability of the generator.
Furthermore, the wind turbine rotating shaft (2) is supported by a support (3), a bearing in the support (3) is connected with the wind turbine rotating shaft (2) so that the wind turbine rotating shaft can freely rotate in the support (3), and the support (3) is fixed on a base (4).
Furthermore, the chain (6), the chain wheel (7), the driven wheel (8) and the generator (9) are all arranged inside the base (4); in order to make the transmission more smooth, the driven wheel (8) is arranged in the middle of the plurality of chain wheels (7); the base (4) is also provided with a storage battery for storing the electric energy generated by the generator (9).
The working principle of the device is as follows:
when wind flows through the blades (1), the blades rotate simultaneously to drive the rotating shaft (2) of the wind turbine to rotate, and the rotating shaft (2) of the wind turbine drives the chain wheel (7) to rotate through the extension shaft (5); the chain (6) is driven to rotate by selecting the plurality of chain wheels (7); the chain (6) rotates to drive the driven wheel (8) to rotate, and the driven wheel (8) drives the rotating shaft of the generator (9) to rotate to generate electricity.
When the rotating speed of the blade (1) is suddenly reduced due to sudden fluctuation of wind speed, such as sudden reduction or sudden change of wind direction, the whole transmission system from the blade (1) to the chain (6) and the chain wheel (7) can be a drag of the generator (9). In order to prevent the generator (9) from suddenly dropping speed and influence the generating efficiency and the service life of the generator (9), the tooth-shaped curve of the driven wheel (8) adopts an asymmetric design, wherein the tooth-shaped curve on one side is a linear profile. When the rotation speed of the chain (6) is slower than that of the driven wheel (8) due to wind speed fluctuation, the tooth-shaped straight line section of the driven wheel (8) is in contact with the chain, the driven wheel (8) rotates faster than the chain (6), and the tooth-shaped straight line section of the driven wheel (8) directly slides out of the chain (6) to enable the driven wheel (8) to rotate independently. At the moment, the driven wheel (8) keeps a certain rotating speed under inertia, is not influenced by wind speed fluctuation, and is beneficial to the smooth operation of the generator (9).
When the site space permits and the electricity demand is high, the number of the groups of the blades (1) can be increased to increase the generated power. The chain (6) adopts a detachable structure, the connecting end of the chain (6) is detached, a new chain component is added, the chain (6) is provided with chain wheels (7) with the number corresponding to the number of the groups of the required blades (1), and then the connecting end of the chain (6) is closed. The matched blades are added to absorb more kinetic energy of wind, and the part of kinetic energy is transmitted and input to the rotating shaft of the generator to improve the generating power.
The above embodiments are only for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered within the technical solutions of the present invention.

Claims (3)

1. The utility model provides a row's vertical axis wind power generation set which characterized in that: comprises blades (1), a wind turbine rotating shaft (2), a base (4), an extension shaft (5), a chain (6), a chain wheel (7), a driven wheel (8) and a generator (9); the blades (1) are connected in rows and output kinetic energy to a generator (9) together; the lower end of the wind turbine rotating shaft (2) is fixedly connected with an extension shaft (5), and the extension shaft (5) is connected with a chain wheel (7); the chain (6) adopts a detachable structure, and can be quickly lengthened so as to add a chain wheel (7) in the chain (6); a plurality of chain wheels (7) drive the chain (6) to rotate together, and power is transmitted to the driven wheel (8) through the chain (6); the tooth-shaped curve of the driven wheel (8) is designed asymmetrically, one side of the tooth-shaped curve is a linear profile, when the rotation speed of the chain (6) is slower than that of the driven wheel (8) due to fluctuation of wind speed, the tooth-shaped straight line section of the driven wheel (8) is in contact with the tooth-shaped straight line section, the driven wheel (8) rotates faster than the chain (6), the tooth-shaped straight line section of the driven wheel (8) directly slides out of the chain (6) to enable the driven wheel (8) to rotate independently, the rotation of the driven wheel (8) is not influenced by the chain (6), and the driven wheel (8) drives the rotating shaft of the generator (9) to be kept at a high rotation speed so as to obtain larger generated energy.
2. A tandem vertical axis wind turbine according to claim 1, wherein: the wind turbine rotating shaft (2) is supported by the support (3) and can freely rotate in the support (3), and the support (3) is fixed on the base (4).
3. A tandem vertical axis wind turbine according to claim 1, wherein: the chain (6), the chain wheel (7), the driven wheel (8) and the generator (9) are all arranged inside the base (4).
CN201910758385.0A 2019-08-16 2019-08-16 Parallel vertical axis wind power generation device Active CN110410274B (en)

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Application Number Priority Date Filing Date Title
CN201910758385.0A CN110410274B (en) 2019-08-16 2019-08-16 Parallel vertical axis wind power generation device

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Application Number Priority Date Filing Date Title
CN201910758385.0A CN110410274B (en) 2019-08-16 2019-08-16 Parallel vertical axis wind power generation device

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CN110410274A CN110410274A (en) 2019-11-05
CN110410274B true CN110410274B (en) 2021-10-22

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1678846A (en) * 2001-12-04 2005-10-05 克劳伊斯传动装置产品有限公司 Roller chain sprocket with added chordal pitch reduction
CN202100385U (en) * 2011-04-26 2012-01-04 林玉辉 Multi-shaft wind power generation device
CN202273810U (en) * 2011-08-16 2012-06-13 李经国 Guardrail type roof wind power generation system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6688925B2 (en) * 2001-08-08 2004-02-10 Modesto J. Garcia Wind and water motor
TW201129751A (en) * 2010-02-26 2011-09-01 Jin-Lian Ceng Parallel connected matrix integration type wind-powered electricitiy generating system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1678846A (en) * 2001-12-04 2005-10-05 克劳伊斯传动装置产品有限公司 Roller chain sprocket with added chordal pitch reduction
CN202100385U (en) * 2011-04-26 2012-01-04 林玉辉 Multi-shaft wind power generation device
CN202273810U (en) * 2011-08-16 2012-06-13 李经国 Guardrail type roof wind power generation system

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