CN201386622Y

CN201386622Y - Vertical shaft flag type wind-driven impeller

Info

Publication number: CN201386622Y
Application number: CN200920110948U
Authority: CN
Inventors: 马钧
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-18
Filing date: 2009-02-18
Publication date: 2010-01-20
Anticipated expiration: 2019-02-18

Abstract

A vertical shaft flag type wind-driven impeller relates to a generator part, in particular to an impeller of a wind-driven generator. The impeller comprises a rotating central shaft, a secondary shaft, an upper frame, a lower frame and a blade, wherein one end of the upper frame and one end of the lower frame are fixedly connected by the secondary shaft, and the other end of the upper frame and the other end of the lower frame are fixedly connected with the rotating central shaft so as to form a blade frame; 4 to 12 impeller frames are respectively arranged around the rotating central shaft at equal distance; and the blade is vertical to the horizon and connected with the secondary shaft in a rotating manner. The unique work mode and the control mode of the impeller lead the vertical shaft wind-driven impeller to be capable of converting wind power on large area, and lead the control technique of the wind-driven impeller to be more reasonable and more effective. The impeller has the advantages of having simpler structure and larger output torque, being capable of stopping without external force, having stronger self-prevention capability and the like, thus improving cost performance and use value thereof. The impeller is one of preferred components for constructing various types of wind-driven generators, in particular to large wind-driven generators.

Description

A kind of vertical shaft flag formula wind-force impeller

Technical field:

The utility model relates to a kind of generator component, particularly a kind of impeller of wind-driven generator.

Technical background:

Along with the reinforcement of the consciousness of the minimizing of resources such as coal, oil and environmental protection, more and more important prospect and value are just showed in the development and use of clean energy resource.Wind-force more has been subjected to the attention of country and society day as a kind of reproducible clean energy resource.Wind generating technology and Products Development, application also just embody more and more important social value and market prospects.Especially low-cost, high-power wind-power electricity generation product are also classified as the focus development project by country.Along with various forms of wind-powered electricity generation products constantly occur, vertical axis aerogenerator is as an emerging wind-power electricity generation product, and more traditional horizontal axis wind-driven generator product has incomparable advantage.It is to make wind-power electricity generation move towards low-cost, high-power a kind of more effective mode.The vertical axis wind power generation product, also be in initial stage in China, expensive, the low-power of wind-power electricity generation is that restriction wind-powered electricity generation product moves towards one of the principal element in market, and will move towards market as a kind of wind-powered electricity generation product, and it must embody low cost, high-power dominance; Just should possess on the combination property of each side such as manufacturing, installation, application, maintenance and use, embody incomparable superiority.

Summary of the invention:

The purpose of this utility model is intended to overcome the defective of prior art, provides a kind of from making, install, use, safeguard and use all vertical shaft flag formula wind-force impeller very easily.

Vertical shaft flag formula wind-force impeller described in the utility model, comprise rotary middle spindle, secondary axes, upper frame, underframe and blade, one end of upper frame and underframe is fixedlyed connected by secondary axes, the other end of upper frame and underframe is fixedlyed connected the formation blade frame with rotary middle spindle, 4-12 impeller frame equidistantly arranged around rotary middle spindle respectively, blade is perpendicular to the horizon, and blade and secondary axes are for being rotationally connected.

Vertical shaft flag formula wind-force impeller described in the utility model has the position-limited lever that is parallel to rotary middle spindle in blade frame.Described blade is a plane.

Vertical shaft flag formula wind-force impeller described in the utility model is converted into the new mechanical system assembly of mechanical energy to wind energy as a kind of, compares with other wind blade, and many advantages are arranged.The overall structure of impeller as shown in Figure 1.Vertical major is a rotary middle spindle, by being fixed on the upper and lower framework on the main shaft, is distributed with the secondary axes that the 4-12 root is parallel to main shaft in its side evenly, symmetrically.The plane blade is rotationally connected with secondary axes perpendicular to ground, can be around secondary axes in 360 ° of rotation of horizontal plane, and shape resembles flag and flagpole, so this impeller called after flag formula impeller.On the framework between every group of secondary axes blade and main shaft, add a motion bar, also can adopt other restricted version, as: the way identical with the motion bar effect directly is set on secondary axes, and can move along framework is inside and outside in the horizontal direction, as the controller of work and parking.The dynamic motion of secondary axes blade in wind determined the mode of operation of this impeller.The impeller of horizontal plane rotation, be appointed as and be rotated counterclockwise, under the wind-force effect, enter and rotate semi-circumference with the wind, as shown in Figure 2, arrow is the wind direction line among the figure, at the lower half of impeller, all the secondary axes blades in the wind-engaging semi-circumference can both be subjected to the constraint of motion bar, the vertical and wind direction with the plane, obtain wind-force with the mode converting wind energy that facings the wind, main shaft is produced torsion output by framework; Enter semi-circumference against the wind, all the secondary axes blades in the upper half as shown in Figure 2 are earlier through free upset counterclockwise, then under the condition that rotates freely, resemble flag with the wind, in wind direction, with the wind a mode is moved with the wind with plane parallel, the resistance under the condition against the wind from being transferred to minimum.So, formed the maximum resistance of with the wind distinguishing all secondary axes blades, reached the purpose of converting wind energy, all be under with the wind the minimum drag state, reached the purpose that reduces energy consumption and distinguish against the wind all blades.This also is the distinguishing feature that is different from other wind blades, and it does not need the additional force of weathercock and driving component to make structure greatly succinct with regard to attitude in the energy self-regulated wind to comply with wind direction; The plane banner blade that adopts can be done very greatly on area, and the wind-force that obtains, the main shaft torsion of its output have possessed the advantage that realizes large-scale wind generating equipment also just much larger than other blade; This impeller also has a special technology, when very little external force is shifted to main spindle's to motion bar, because the secondary axes blade is in the free state that is not subjected to rotation condition, make with the wind the district, all stop the rotation with minimum windage, stress balance in the district against the wind, realizes no external force parking.This is a not available new technology of other blade, for maintenance, maintenance facility, stops for the impeller in fault and the accident, and the environment that very reasonably stops is provided; Simultaneously, for the wind speed that transfinites, the situation as typhoon, hurricane etc. take place can also make impeller realize initiatively stopping by the measurement to ways such as wind speed, rotating speed centrifugal force and vane stress transfinite, and minimum windage is exactly the optimum scheme of protection equipment.

In a word, the mode of operation of this impeller uniqueness and control mode make the vertical-shaft wind impeller transform wind-force with large-area planar; Make the control technique of wind-force impeller more reasonable, more effective.Many advantages such as it is simpler with structure, outputting torsion is bigger, no external force also can be stopped, the self-protection ability is stronger have improved the cost performance and the use value of this impeller.It is one of preferred assembly that makes up various wind-driven generator, especially large-scale wind driven generator.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the plan structure schematic representation of Fig. 1.

Among the figure, 1-rotary middle spindle, 2-secondary axes, 3-blade, 4-position-limited lever, 5-upper frame and underframe.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further, but is not limited to embodiment.

Embodiment 1

Vertical shaft flag formula wind-force impeller described in the utility model, comprise rotary middle spindle 1, secondary axes 2, upper frame and underframe 5 and blade 3, one end of upper frame and underframe 5 is fixedlyed connected by secondary axes 2, the other end of upper frame and underframe 5 is fixedlyed connected the formation blade frame with rotary middle spindle 1, the position-limited lever 4 that is parallel to rotary middle spindle is arranged in blade frame, 4-12 impeller frame equidistantly arranged around rotary middle spindle 1 respectively, blade 3 is perpendicular to the horizon, blade 3 and secondary axes 2 are for being rotationally connected, and described blade 3 is a plane.

Be converted to the system component of mechanical force as wind energy, impeller described in the utility model is the power source of wind-driven generator, and the ability of its conversion is the key component that influences wind power plant quality, generated output size.The whether complete feasibility and the use value that determines development and use of its performance.This impeller can be used for developing low-cost, powerful wind power plant.It is simple and reasonable, and cost is low, and manufacture difficulty is not high.Except that the cast steel welding fabrication of main shaft and the certain intensity of framework needs, secondary axes, blade can adopt lightweight durable material such as liner screen frame to add aluminium sheet, composite material blade, profile is a rectangle, can suitably change size according to type and environmental conditions, increase is high, wide length can both obtain the large size blade, to increase highly; Blade is in order to transform it entering a centrifugal force that freely overturns and cause that is taken place when distinguishing against the wind, also can to adopt ways such as applying drag braking, counterweight, making it to be fully used in constructional protract part and the angular deflection on framework.Supporting with it support king-post does not need too high yet, just can obtain very large main shaft torsion output about 30M.The manufacturing of can independently founding the factory also can the associating manufacturing.It will become one of optimum scheme of wind-force conversion with its unique mode of operation and comparatively complete technical characterstic in exploitation various wind power plant, especially large-scale wind generating equipment.To its development and use, be to perfect replenishing of China's wind-power electricity generation independent intellectual property right, also will effectively promote the development and the application of wind-power electricity generation.Also will play positive role to develop the economy and expanding employment etc.Rotary middle spindle 1 is that impeller connects wind-driven generator king-post and generator, supports impeller and the critical piece that rotating center is provided, and also is the driving component of outputting torsion; Secondary axes 2 are the parts that constitute framework, also are rely fixing parts and running shafts of plane blade; Blade 3 is lightweight plane blades, is the critical component of converting wind energy; Position-limited lever 4, i.e. motion bar.Be the controlling component of constraint blade rotation, simultaneously, the upset opportunity of the angle of yaw of blade with adjusting vane be set; Upper and lower framework 5 is to install and the fixing parts of secondary axes blade, also is the bridge that wind-force is sent to main shaft.

Claims

1, a kind of vertical shaft flag formula wind-force impeller, it is characterized in that, comprise rotary middle spindle, secondary axes, upper frame, underframe and blade, one end of upper frame and underframe is fixedlyed connected by secondary axes, the other end of upper frame and underframe is fixedlyed connected the formation blade frame with rotary middle spindle, 4-12 impeller frame equidistantly arranged around rotary middle spindle respectively, and blade is perpendicular to the horizon, and blade and secondary axes are for being rotationally connected.

2, vertical shaft flag formula wind-force impeller according to claim 1 is characterized in that, described vertical shaft flag formula wind-force impeller has the position-limited lever that is parallel to rotary middle spindle in blade frame.

3, vertical shaft flag formula wind-force impeller according to claim 1 is characterized in that described blade is a plane.