CN202900533U

CN202900533U - Shaft type automatic direct adjusting fan blade of wind power generator

Info

Publication number: CN202900533U
Application number: CN 201220621967
Authority: CN
Inventors: 曹孟臣
Original assignee: Individual
Current assignee: Bengbu Zhixin Industry And Trade Co Ltd
Priority date: 2012-11-21
Filing date: 2012-11-21
Publication date: 2013-04-24
Anticipated expiration: 2022-11-21

Abstract

A shaft type automatic direct adjusting fan blade of a wind power generator is suitable for a vertical shaft type wind power generator, and comprises a vane and a supporting shaft. The vane is arranged on the supporting shaft, the supporting shaft supports the vane in a rotary mode, the gravity center of the vane deviates from the rotation axis of the vane, and a limit mechanism which enables the vane to be in a horizontal state and a vertical state is arranged between the supporting shaft and the vane. When the vertical shaft type wind power generator adopts a set of the vanes and the rotating direction of one or more vanes is consistent with the wind direction, the vanes can be kept in the vertical state to better and directly receive wind power through gravity of the vanes, the wind power and the limit mechanism. When the rotating direction of the vanes is opposite to the wind direction, the vanes can be kept in the horizontal state through the wind power and the limit mechanism, resistance caused by the wind power is prevented from being formed to the vanes. Therefore, wind wheels can use the wind power to rotate and work along one direction and wind energy is utilized to the largest extent.

Description

Wind-driven generator shaft type automatic direction regulating fan blade

Technical field

The utility model relates to the fan blade of wind-driven generator, specifically a kind of fan blade that is suitable for perpendicular axis type wind-driven generator.

Background technique

Along with the increasingly scarcity of the energy, the utilization of wind energy more and more causes people's attention, and utilizing wind-force to generate electricity is a kind of Main Means that utilizes wind energy.At present, wind-driven generator has two kinds of horizontal axial type and perpendicular axis types, for the fan blade in the present horizontal axis wind-driven generator, its design feature is to utilize a component of wind-force to promote fan blade, produce moment of torsion, and the area of fan blade is very large, and the wind-force that is used for pushing generator is less, and designing requirement is also very high, cost is very high, and efficient is lower, and birds and bat are had harm.And for the fan blade in the present vertical axis aerogenerator, when its fan blade sense of rotation was opposite with wind direction, the contrary wind wind-force that fan blade is subject to was larger, had offset largely the with the wind thrust of fan blade, and therefore, efficient is also lower.So the common deficiency that the used fan blade of existing various wind-driven generators exists is: the utilization ratio of wind energy is lower, and design volume is large, and cost is high; Wind speed is had relatively high expectations, usually rated wind speed all 10 meters of per seconds to more than 15 meters, in the less zone of wind-force, the use of wind-driven generator is restricted, the local efficient high at wind speed is also lower, has limited the development of wind-driven generator.

The model utility content

The purpose of this utility model is to provide a kind of wind-driven generator shaft type automatic direction regulating fan blade, this fan blade is used for the vertical straight shaft type wind-driven generator, but its blade automatic direction regulating, when blade is in the wind the position vertically, level when being in against the wind the position, stressed when this fan blade can reduce to greatest extent fan blade and is in position against the wind, take full advantage of the with the wind wind-force generation moment of torsion of position, and then the utilization ratio of wind energy is improved, and the wind speed that can utilize wind is required to reduce.

For achieving the above object, the utility model adopts following scheme: wind-driven generator shaft type automatic direction regulating fan blade, be suitable for the vertical straight shaft type wind-driven generator, it has blade, and it also has a back shaft, and blade is contained on the back shaft, back shaft consists of the rotational support to blade, the axis of back shaft both had been the rotation axis of blade, and the rotation axis of the deviation of gravity center blade of blade is provided with the position-limit mechanism that makes blade keep level and plumbness between back shaft and the blade.

By such scheme as seen, when adopting the automatic direction regulating fan blade that one group of the utility model provides in the perpendicular axis type wind-driven generator, when the sense of rotation of one or several fan blade wherein and wind direction reach unanimity, by the blade self gravitation, wind-force and position-limit mechanism, can make blade keep vertical state, thereby directly accept preferably wind-force, when the sense of rotation of other fan blade is tending towards opposite with wind direction, by wind-force and position-limit mechanism, can make blade keep level, avoid wind-force that fan blade is formed resistance, thereby make wind wheel can utilize wind-force toward a direction rotation acting, maximally utilised the energy of wind.

The utility model is rational in infrastructure, use is reliable, it is as the fan blade of vertical axis aerogenerator, has following good effect: the boundary dimension that 1, can under same wind condition, reduce wind-driven generator, simplify wind-driven generator structure, decrease windmill cost reduces investment and operating cost; 2, can utilize the unserviceable low velocity wind generating of present wind-driven generator, greatly improve the scope of utilizing of wind-driven generator.3, can reduce largely the size of wind wheel, be conducive to reduce wind wheel to the harm of birds and bat.

Description of drawings

Fig. 1 the utility model one embodiment's structural representation;

The fixing structural representation of back-up ring among Fig. 2 Fig. 1;

The right elevation of Fig. 3 Fig. 2;

Rotate the structural representation of back-up ring among Fig. 4 Fig. 1;

The left view of Fig. 5 Fig. 4;

The A-A sectional view of Fig. 6 Fig. 1;

Fig. 7 use view of the present utility model.

Embodiment

Further specify the utility model below in conjunction with embodiment and accompanying drawing.

Referring to Fig. 1

The fan blade that the utility model provides has blade 5 and back shaft 1, has sleeve pipe 5a on the blade 5, and sleeve pipe 5a and blade 5 are integrated.Blade 5 is loaded on the back shaft 1 by sleeve pipe 5a, the rotational support that back shaft 1 consists of blade 5, and the axis of back shaft 1 both had been the rotation axis of blade 5.Position-limit mechanism is comprised of the rotation back-up ring 3 that is fixed on the fixedly back-up ring 2 on the back shaft 1 and be connected on the sleeve pipe 5a of blade 5.Sleeve pipe 5a and 3 modes that connect of rotation back-up ring are: be connected with a flange plate 4 on the sleeve pipe 5a, flange plate 4 connects with rotation back-up ring 3.Take the axis of back shaft 1 as the boundary, it is not of uniform size to make blade 5 be in the part of its axis both sides, can make the rotation axis of blade 5 depart from its center of gravity.In addition, in use, the left end of back shaft 1 connects with the fan blade bar.

Referring to Fig. 2, Fig. 3, fixedly back-up ring 2 has two limiting stopper 2a on the end face that rotates back-up ring.

Referring to Fig. 4, Fig. 5, rotate back-up ring 3 and on the end face on the fixing back-up ring, have two block 3a.Referring to Fig. 3, Fig. 6, the collision when cooperating with block 3a for cushioning two limiting stopper 2a, two limiting stoppers

Be respectively equipped with rubber pad 6 on 2a and the side that block cooperates.

Referring to Fig. 7, the fan blade that present embodiment provides in use, back shaft 1 connects with fan blade bar 6, fan blade bar 6 connects with vertical running shaft 7.

In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 as seen, cooperatively interact between two block 3a and two limiting stopper 2a, limit blade is 90 ° around the maximum angle that back shaft rotates.When the sense of rotation of fan blade and wind direction reach unanimity, by blade 5 gravity, wind-force and the block 3a of self and cooperating of limiting stopper 2a, can make blade 5 keep vertical state, and then directly accept wind-force; When the sense of rotation of fan blade is tending towards opposite with wind direction, by wind-force and and the cooperating of block 3a and limiting stopper 2a, can make blade maintenance level, avoid wind-force that fan blade is formed resistance.

The characteristics of the automatic direction regulating fan blade that the utility model provides are: blade only in 90 ° scope the rotation axis around self freely rotate, when fan blade is in the wind, blade under the effect of self gravitation to vertical direction deflection, and the cooperation by wind action and position-limit mechanism, keep being vertical state, when fan blade is in against the wind, because the half of area that blade is laid particular stress on is larger, half that lays particular stress on be subjected to wind-force can by blow to away from wind come to, and can make blade be in level by position-limit mechanism.As seen, when wind is arranged, fan blade is in the generator shaft process in one week, blade can be in the vertically automatic conversion between state and the level, and blade is finished around self rotation axis by vertically going to level, go to vertical one-period sexual act by level again, and then realizes taking full advantage of the acting of Wind power propelling generator running shaft by blade.

Claims

1. wind-driven generator shaft type automatic direction regulating fan blade, be applicable to perpendicular axis type wind-driven generator, it has blade, it is characterized in that: it also has a back shaft, blade is contained on the back shaft, back shaft consists of the rotational support to blade, and the rotation axis of the deviation of gravity center blade of blade is provided with the position-limit mechanism that makes blade keep level and plumbness between back shaft and the blade.

2. wind-driven generator shaft type automatic direction regulating fan blade according to claim 1, it is characterized in that: have sleeve pipe on the blade, blade pass is crossed sleeve pipe and is loaded on the back shaft, position-limit mechanism is comprised of the rotation back-up ring that is fixed on the fixedly back-up ring on the back shaft and be connected on the sleeve pipe of blade, fixedly back-up ring has two limiting stoppers on the end face that rotates back-up ring, rotate back-up ring and on the end face on the fixing back-up ring, have two blocks, cooperatively interact between two blocks and two limiting stoppers, limit blade is 90 ° around the maximum angle that back shaft rotates.

3. wind-driven generator shaft type automatic direction regulating fan blade according to claim 1 is characterized in that: be respectively equipped with rubber pad on two limiting stoppers and the side that block cooperates.