CN205669456U - The change oar vertical shaft wind force driving device of a kind of blade band wing flap and wind-driven generator - Google Patents

Abstract

The change oar vertical shaft wind force driving device of a kind of blade band wing flap according to this utility model offer and wind-driven generator, vertical shaft wind force driving device is arranged on wind-driven generator for driving the rotation of the rotary shaft of electromotor to generate electricity, it is characterized in that: there is rotary unit, including output shaft, bracket assembly, plurality of vanes assembly, blade assembly includes: blade body, blade rotor, blade flap, blade flap is rotated by blade rotor, and integrally mounted with blade body；Regulation unit is arranged on the bottom of bracket assembly, and regulation unit includes grooved tracks, slide block and crank, and slide block slides in grooved tracks, by the guiding of groove, drive crank rotates, and is automatically deflected certain angle by crank handle turns blade flap, it is thus possible to actively change blade actual angle of attack.Therefore the adaptive strain oar vertical shaft wind force driving device of blade band wing flap has raising blade aerodynamic performance and the characteristic of wind energy utilization.

Description

The change oar vertical shaft wind force driving device of a kind of blade band wing flap and wind-driven generator

Technical field

This utility model belongs to wind power generation field, and the adaptive strain oar vertical-shaft wind relating to a kind of blade band wing flap drives Dynamic device.

Background technology

Wind Energy In China aboundresources, greatly develops wind-power electricity generation to energy security of readjusting the energy structure, ensure, reply weather Change and promote the sustainable development of socio-economy significant, wherein wind energy conversion system as wind-power electricity generation key equipment for China's Wind Power Development plays effect of crucial importance.But, the vertical axis windmill angle of attack becomes periodically variable feature to make blade Dynamic stall characteristic is obvious, and wind energy conversion system aeroperformance is affected, and structural stability and capacitation efficiency have much room for improvement.

When pneumatic equipment blades rotates, blade actual angle of attack changes.When attack angle of blade is negative angle of attack, blade produces Torque direction is opposite to the direction of rotation；When the angle of attack of blade increases to stall angle, gas is no longer attached to blade table surface current Cross, in blade suction surface generation flow separation, and at the trailing edge of suction surface, vortex will occur, i.e. so-called " stall " phenomenon.Wind When power machine is in stall conditions, not only reduces blade aerodynamic efficiency, affect wind energy conversion system energy capture, and noise can increase suddenly Greatly, and the phenomenon such as vibration and fluctuation of service of causing pneumatic equipment blades.Improve pneumatic equipment blades stall the most as much as possible special Property, increase wind energy conversion system acting scope with improve wind energy conversion system operational efficiency there is important social meaning and economic implications.

Through retrieval, passive control mode is currently mainly used to improve pneumatic equipment blades stalling characteristics.A kind of with stall tune The wind power generating set (application number: 20132055243.1) of joint, by regulation axis of runner blade and the axis of oscillation of installing plate, makes It ensures to acutangulate the purpose reaching to regulate stall in side windward, but now blade profile to be shaped as non-aerofoil profile streamlined, Aeroperformance cannot ensure.

Gradually present maximization along with wind energy conversion system, Large Copacity development trend, stall passively control required cost and constantly increase. Use adaptive mode, generation principle based on stall and cause the reasons such as wind energy conversion system fluctuation of service, take respective design Stalling characteristics and the stability of improving wind energy conversion system seem most important for wind energy conversion system stall-adjusted and stable and high effective operation.

Utility model content

This utility model is carried out to solve the problems referred to above, it is therefore intended that provide the adaptive of a kind of blade band wing flap Strain oar vertical axis aerogenerator, with solve vertical axis windmill pneumatic efficiency low and certainly opening property difference etc. problem.

This utility model, for reaching object above, adopts the technical scheme that

This utility model provides the adaptive strain oar vertical shaft wind force driving device of a kind of blade band wing flap, is arranged on wind It is used on power generator driving the rotary shaft of electromotor to rotate and generate electricity, it is characterised in that have: rotary unit, including: output Axle, is connected with rotary shaft；Bracket assembly, is fixed on output shaft, is used for driving output shaft rotation, plurality of vanes assembly, It is separately mounted in the outer rim of bracket assembly；Wherein, blade assembly includes: blade body, is fixedly mounted on bracket assembly Outer rim on, blade rotor, be parallel to blade body axis arrange and be rotationally connected with blade body, blade flap, with leaf Sheet rotating shaft is fixing to be connected, and blade flap is rotated by blade rotor, and integrally mounted with blade body, blade rotor centrage With output shaft centrage in one plane；And regulation unit, it is arranged on bracket assembly bottom, is used for adjusting blade flap With the angle of blade rotor centrage, regulation unit includes: track, ovalize, around output shaft and be arranged on bracing frame group Part bottom, slide block, engaging slides in orbit and in orbit, and there is a top axle at slider top center, crank, one end of crank with Blade rotor is fixedly linked, and the other end is flexibly connected with slide block by slider top axle, is used for adjusting blade flap and turns with blade The angle of axle.

In vertical shaft wind force driving device of the present utility model, it is also possible to have a feature in that wherein, the horizontal stroke of track Cross section is in " C " font.

It addition, in vertical shaft wind force driving device of the present utility model, it is also possible to have a feature in that wherein, Support assembly includes the lower bracing frame of and parallel track, and lower bracing frame is fixing by the way of engaging with output shaft to be connected.

It addition, in vertical shaft wind force driving device of the present utility model, it is also possible to have a feature in that wherein, Support assembly also includes a upper support frame being oppositely arranged with lower bracing frame, upper support frame with output shaft by the way of engaging Fixing connection.

It addition, in vertical shaft wind force driving device of the present utility model, it is also possible to have a feature in that wherein, Support assembly the most at least includes a middle bracing frame being oppositely arranged with lower bracing frame, and middle bracing frame and output shaft are by engaging Mode is fixing to be connected.

It addition, in vertical shaft wind force driving device of the present utility model, it is also possible to have a feature in that wherein, leaf Sheet main body is prismatic blade.

It addition, in vertical shaft wind force driving device of the present utility model, it is also possible to have a feature in that wherein, leaf The cross section of sheet main body is symmetrical airfoil.

It addition, in vertical shaft wind force driving device of the present utility model, it is also possible to have a feature in that wherein, leaf The cross section of sheet main body is asymmetric airfoil.

It addition, in vertical shaft wind force driving device of the present utility model, it is also possible to have a feature in that wherein, leaf When sheet wing flap reaches optimum rotational angle, orbit track, crank length and output shaft centrage are to blade rotor centrage Relationship is:

$AC=\sqrt{{\mathrm{CD}}^2+{\mathrm{AD}}^2-2\·CD\·AD\·cos(\frac{\mathrm{\π}}{2}+\frac{\mathrm{\β}\mathrm{\π}}{180})}$

β wing flap pivot angle (°)；

AC orbital groove centrage and the air line distance (m) of output shaft centrage；

AD output shaft centrage and the air line distance (m) of blade rotor centrage；

The centrage of CD slider top axle and the air line distance (m) of blade rotor centrage.

This utility model provides the adaptive strain oar vertical axis aerogenerator of a kind of blade band wing flap, and its feature exists In, have: vertical shaft wind force driving device, there is output shaft, electromotor, there is rotary shaft, be connected with output shaft, rotary shaft by Vertical shaft wind force driving device is rotated and generates electricity.

Wherein, vertical shaft wind force driving device is the adaptive strain oar vertical shaft wind force driving device of blade band wing flap.

The effect of utility model and effect

According to vertical axis aerogenerator of the present utility model, because have employed hanging down of the adaptive strain oar of blade band wing flap D-axis wind force driving device, is provided with regulation unit in the bracket assembly bottom of wind force driving device, and regulation unit includes recessed Groove track, slide block and crank, slide block slides in grooved tracks, by the guiding of groove, drives crank to rotate, and by crank band Moving vane wing flap deflects certain angle automatically, so blade actual angle of attack, the therefore self adaptation of blade band wing flap can actively be changed Become oar vertical shaft wind force driving device to have and improve blade stall characteristic, improve blade aerodynamic performance and the spy of wind energy utilization Property.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the vertical axis aerogenerator that this utility model relates to；

Fig. 2 is the vertical shaft wind force driving device that relates to of this utility model axonometric chart in an embodiment；

Fig. 3 is that the three-dimensional of a kind of blade assembly in the vertical shaft wind force driving device that this utility model relates to installs signal Figure；

Fig. 4 is the vertical shaft wind force driving device Leaf lower end connected mode partial enlargement signal that this utility model relates to Figure A；

Fig. 5 is slide block and crank connection diagram in the vertical shaft wind force driving device that this utility model relates to；

Fig. 6 is the vertical shaft wind force driving device middle orbit channel section schematic diagram that this utility model relates to；

Fig. 7 is eccentric trajectory calculation schematic diagram in the vertical shaft wind force driving device that this utility model relates to.And

Fig. 8 is that in the vertical shaft wind force driving device that this utility model relates to, wing flap swings schematic diagram.

Detailed description of the invention

For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, with Lower embodiment combines the vertical shaft wind force driving device that this utility model relates to by accompanying drawing and is specifically addressed.

Fig. 1 is the schematic diagram of the vertical axis aerogenerator that this utility model relates to.

As it is shown in figure 1, vertical axis aerogenerator 100 has: vertical shaft wind force driving device 10 and and vertical shaft wind The electromotor 20 that force driving device 10 connects.Electromotor 20 has rotary shaft 21.

Fig. 2 is vertical shaft wind force driving device of the present utility model axonometric chart in an embodiment.

As in figure 2 it is shown, vertical shaft wind force driving device has: rotary unit 11 and regulation unit 12.Rotary unit 11 wraps Include output shaft 111, bracket assembly 112, plurality of vanes assembly 113, key 114.Wherein, output shaft 111, it is positioned at rotary unit The center of 11.

As it is shown in figure 1, output shaft 111 is connected with electromotor 20 rotary shaft 21.

As in figure 2 it is shown, bracket assembly 112 is fixed on output shaft 111, it includes upper support frame 112a, lower bracing frame 112b and middle bracing frame 112c, upper support frame 112a, lower bracing frame 112b and middle bracing frame 112c are spoke shape, respectively with defeated Shaft 111 is fixing by the way of key 114 is with engaging to be connected, and plurality of vanes assembly 113 is separately mounted to bracket assembly In the outer rim of 112, blade assembly 113 includes: blade body 113a, blade flap 113b, blade rotor 113c, blade body 113a is fixedly mounted in the outer rim of bracket assembly 112.

As it is shown on figure 3, blade body 113a inwardly has breach from edge, one end of breach forms blade body top, The other end of breach is formed bottom blade body, and blade body top and bottom part body are parallel to blade body axis and are respectively provided with Top through hole and bottom through-hole, top through hole centrage and bottom through-hole centrage is had to overlap, blade body in the present embodiment Axis be parallel to output shaft centrage.

Blade rotor 113c is rotationally connected with blade body 113a by top through hole and bottom through-hole, blade flap 113b Fixing with blade rotor 113c and be connected, be arranged in the breach of blade body by blade rotor, blade flap is turned by blade Axle rotates, and blade rotor centrage is with output shaft centrage in one plane；Key 114, lay respectively at output shaft 111 with upper Support 112a, output shaft 111 and lower bracing frame 112b, output shaft 111 and the joint portion of middle bracing frame 112c, play interconnection function.

Regulation unit 12 includes orbital groove 121, slide block 122, crank 123.Wherein, orbital groove 121, ovalize, Around output shaft 111 and be arranged on lower bracing frame 112b bottom, slide block 122, in being fastened on track 121 and sliding in track 121 Dynamic, slide block 122 top center has top axle.

As shown in Figure 6, orbital groove inward flange has protrusion, can the movement in vertical direction of anti-limited slip block 122.

As shown in Figure 4, one end of crank 123 is fixedly linked with blade rotor 113c, and the other end is connected with slide block 122, uses In the angle adjusting blade flap 113b and blade rotor 113c.

As it is shown in figure 5, slide block 122 top center has top axle, crank 123 to be connected by top axle with slide block 122, two Person rotates around slide block 122 top axle without relative translational movement degree of freedom, crank 123.

Deforming as one, blade body 113a is prismatic blade, and its cross section is asymmetric airfoil.

As in figure 2 it is shown, using six blade vertical shaft wind force driving devices as the signal of this utility model detailed description of the invention Object.When blowing from any direction when the wind comes from, blade body 113a and blade flap 113b are promoted blade overall by aerodynamic force Turning clockwise, bracket assembly 112 is fixing with blade body 113a to be connected, and therefore, bracket assembly 112 is by dextrorotation Turning, be connected by key 114 between bracket assembly 112 with output shaft 111, output shaft 111 is promoted up time by bracket assembly 112 Pin rotates, such that it is able to drive electrical power generators.

During blade integral-rotation, due to blade rotor 113c be connected to blade body 113a, blade flap 113b and Degree of freedom without spin between crank 123, and blade rotor 113c and crank 123, when blade body 113a and blade flap 113b When being turned clockwise by Aerodynamic force action, crank 123 will be done rotation counterclockwise by the active force that blade rotor 113c transmits Trend.Crank 123 is connected with slide block 122, and the two is without relative translational movement degree of freedom, and crank 123 will be around the slide block 122 top axle inverse time Pin rotates.When blade body 113a and blade flap 113b are after 111 turns of any rotation of output shaft, crank 123 translation position Shifting changes, and slide block 122 will be promoted to slide in orbital groove 121.Owing to the movement locus of slide block 122 is by orbital groove The constraint of 121, does not corresponds with crank 123 translation track.Therefore, crank 123 is affected by the track of slide block 122 and is pushed up around slide block 122 Portion's axle rotates.Now, drive blade flap 113b is rotated to an angle by crank 123 around blade rotor 113c centrage, thus Change the pneumatic angle of attack, reach the purpose that self adaptation swings, improve aerodynamic force output.

The rule of adaptive strain oar by track, crank 123 length and the output shaft centrage of grooved tracks 121 to leaf The impact of the air line distance of sheet shaft centerline.Mathematical calculation can be passed through, retrain the mathematical relationship between above three factor, from And determine the angle that blade flap 113b rotates in rotary course, to obtain the dynamic pneumatic angle of attack of global optimum.

$AC=\sqrt{{\mathrm{CD}}^2+{\mathrm{AD}}^2-2\·CD\·AD\·cos(\frac{\mathrm{\π}}{2}+\frac{\mathrm{\β}\mathrm{\π}}{180})}---\left(1\right)$

In formula:

β wing flap pivot angle (°)；

AC orbital groove centrage is to the air line distance (m) of output shaft centrage；

AD output shaft centrage is to the air line distance (m) of blade rotor centrage；

The centrage of CD slider top axle and the air line distance (m) of blade rotor centrage.

As it is shown in fig. 7, A is the point on output shaft centrage；C is the point on elliptic orbit groove center line；D is that blade turns Point on shaft centre line.AC is the elliptic orbit groove center line air line distance to output shaft centrage；AD is output shaft center Line is to the air line distance of blade rotor centrage；CD is the air line distance of slider top shaft centre line and blade rotor centrage.

The effect of embodiment and effect

The vertical shaft wind force driving device of the adaptive strain oar according to blade band wing flap of the present utility model, has rotation single Unit and regulation unit, because being provided with regulation unit in bracket assembly bottom, when blade is after output shaft rotation is arbitrarily angled, Crank translation displacements changes, and slide block will be promoted to slide in orbital groove.Owing to the movement locus of slide block is by groove Constraint, does not corresponds with crank translation track.Therefore, crank is affected by the track of slide block and is rotated around slider top axle, now, and crank Drive blade flap is rotated to an angle around blade rotor centrage, thus changes the pneumatic angle of attack, reach adaptive strain oar Purpose, improves blade stall characteristic, improves blade aerodynamic performance and wind energy utilization.

Above-mentioned embodiment is preferred case of the present utility model, is not intended to limit protection domain of the present utility model.

Claims (10)

1. a change oar vertical shaft wind force driving device for blade band wing flap, is arranged on wind-driven generator for driving electromotor Rotary shaft rotate and generate electricity, it is characterised in that have:

Rotary unit, including:

Output shaft, is connected with described rotary shaft,

Bracket assembly, is fixed on described output shaft, is used for driving described output shaft rotation,

Plurality of vanes assembly, is separately mounted in the outer rim of support frame as described above assembly,

Wherein, described blade assembly includes:

Blade body, is fixedly mounted in the outer rim of support frame as described above assembly,

Blade rotor, the axis being parallel to described blade body arranges and is rotationally connected with described blade body,

Blade flap, fixes with described blade rotor and is connected, and described blade flap is rotated by described blade rotor, and with described Blade body is integrally mounted, and described blade rotor centrage is with described output shaft centrage in one plane；And

Regulation unit, is arranged on support frame as described above assembly bottom, is used for adjusting described blade flap and described blade rotor center The angle of line,

Described regulation unit includes:

Track, ovalize, around described output shaft and be arranged on support frame as described above assembly bottom,

Slide block, in being fastened on described track and at described gliding in tracks, there is top axle at described slider top center,

Crank, one end of described crank is connected with in described blade rotor, and the other end is by described top axle and described slide block phase Even, for adjusting the angle of described blade flap and described blade rotor centrage.

Wind force driving device the most according to claim 1, it is characterised in that:

Wherein, the cross section of described track is in " C " font.

Wind force driving device the most according to claim 1, it is characterised in that:

Wherein, support frame as described above assembly includes the lower bracing frame of and described parallel track, and described lower bracing frame is defeated with described Shaft is fixing by the way of engaging to be connected.

Wind force driving device the most according to claim 3, it is characterised in that:

Wherein, support frame as described above assembly also includes a upper support frame being oppositely arranged with described lower bracing frame, described upper support Frame is fixing by the way of engaging with described output shaft to be connected.

Wind force driving device the most according to claim 3, it is characterised in that:

Wherein, support frame as described above assembly also includes a middle bracing frame being oppositely arranged with described lower bracing frame, described middle support Frame is fixing by the way of engaging with described output shaft to be connected.

Wind force driving device the most according to claim 1, it is characterised in that:

Wherein, described blade body is prismatic blade.

Wind force driving device the most according to claim 6, it is characterised in that:

Wherein, the cross section of described blade body is symmetrical airfoil.

Wind force driving device the most according to claim 6, it is characterised in that:

Wherein, the cross section of described blade body is asymmetric airfoil.

Wind force driving device the most according to claim 1, it is characterised in that:

Wherein, when described blade flap reaches optimum rotational angle, described orbit track, described crank length and described output Shaft centre line to the relationship of described blade rotor centrage is:

β wing flap pivot angle (°)；

Orbital groove centrage described in AC and the air line distance (m) of described output shaft centrage；

Output shaft centrage described in AD and the air line distance (m) of described blade rotor centrage；

The centrage of top axle described in CD and the air line distance (m) of described blade rotor centrage.

10. the change oar vertical axis aerogenerator of a blade band wing flap, it is characterised in that have:

Wind force driving device, has output shaft,

Electromotor, has rotary shaft, is connected with described output shaft, and described rotary shaft is by the change oar vertical axis of described blade band wing flap Wind force driving device is rotated and generates electricity,

Wherein, described wind force driving device is the change oar vertical-shaft wind driving of the blade band wing flap described in claim 1-9 Device.