CN102588215A - Pitch angle adjusting mechanism for blades of vertical axis wind generator and vertical axis wind generator - Google Patents
Pitch angle adjusting mechanism for blades of vertical axis wind generator and vertical axis wind generator Download PDFInfo
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- CN102588215A CN102588215A CN2012100766488A CN201210076648A CN102588215A CN 102588215 A CN102588215 A CN 102588215A CN 2012100766488 A CN2012100766488 A CN 2012100766488A CN 201210076648 A CN201210076648 A CN 201210076648A CN 102588215 A CN102588215 A CN 102588215A
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- 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
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- 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
Abstract
The invention discloses a pitch angle adjusting mechanism for blades of a vertical axis wind generator, comprising blades which are distributed in the same circle, wherein the blades are vertically placed, and both the upper and lower ends of each blade are covered with a blade hoop, respectively; the back of the hoop is provided with two horizontal support lugs that are parallel to each other in the vertical direction; and the inner side of the circle where the blades are located is provided with a power assembly, a vertical tube assembly, an execution assembly, a generator hub shell and a drive bevel gear. The pitch angle adjusting mechanism of the invention can adjust the pitch angle of the blades depending on the requirements; moreover it can adjust the pitch angles of all the blades at the same time which overcomes the shortage of traditional structures which cannot adjust the pitch angles of the blades. The pitch angle adjusting mechanism of the invention can better protect the blades when the wind generator stops, increase the output power of the wind generator, and substantially stabilize the output power of the wind generator to its nominal power so as to avoid large impact to the power grid. Additionally, the pitch angle adjusting mechanism of the invention is simple in structure and convenient in preparation, has favorable technological and economical values, and is suitable to be widely generalized and used in the field of vertical axis wind generator.
Description
Technical field
The invention belongs to the vertical axis aerogenerator field, specifically, relate in particular to the propeller pitch angle controlling mechanism and the vertical axis aerogenerator of vertical axis aerogenerator blade.
Background technique
As shown in Figure 2; The propeller pitch angle θ of vertical axis aerogenerator blade is the peripheral velocity direction of blade and the angle between its chord of foil direction; The propeller pitch angle of blade is just set when design at present; Unadjustable, and the propeller pitch angle that should set is closely related with the factors such as rated power that start wind speed, rated wind speed, cut-out wind speed and wind-driven generator.Simultaneously, what propeller pitch angle was represented is the wind energy utilization of blade, and propeller pitch angle is big more, and its wind energy utilization is just low more, and under the situation of identical wind speed, propeller pitch angle is big more, and the output power of wind-driven generator is more little.In running, we find that actual wind speed usually has very big-difference with startup wind speed, rated wind speed, cut-out wind speed.
When actual wind speed＜startup wind speed, the wind-driven generator forced stoppage in order to protect blade, needs to increase propeller pitch angle, generally will increase to 90 °, and existing structure can't be realized;
When starting wind speed＜actual wind speed＜rated wind speed, need reduce propeller pitch angle as much as possible, generally need be decreased to 0 °, so that improve wind energy utilization, increase the output power of wind-driven generator;
When rated wind speed＜actual wind speed＜cut-out wind speed; Need size adjustment propeller pitch angle according to actual wind speed; Thereby the output power that makes wind-driven generator is stabilized near the rated power; And existing structure can't be realized, causes the output power of wind-driven generator and its rated power deviation bigger, will produce bigger impact to electrical network like this;
When actual wind speed＞cut-out wind speed, the wind-driven generator forced stoppage in order to protect blade, needs to increase propeller pitch angle, generally will increase to 90 °, and existing structure can't be realized still.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of propeller pitch angle controlling mechanism of vertical axis aerogenerator blade, and it can regulate the propeller pitch angle of wind power generator oar blade as required.
Technological scheme of the present invention is following: a kind of propeller pitch angle controlling mechanism of vertical axis aerogenerator blade; Comprise the blade (1) that is distributed on the same circumference; This blade is vertical setting; And the upper and lower part of each blade (1) is set with a fan-catcher (2) respectively, and the back side of this fan-catcher has two upper and lower horizontal journal stirrups (2a) that are arranged side by side, and it is characterized in that: the inboard of circle is provided with Power Component, vertical tube assembly, executive module, axial fan hub shell (3) and drive bevel gear (4) at said blade (1) place; Wherein axial fan hub shell (3) symmetry is located at the upper and lower end of said vertical tube assembly; Said Power Component is set in the vertical tube assembly, and this Power Component comprises power plant (5) and vertical output shaft (6), wherein power plant
(5) two output terminals link to each other with corresponding said vertical output shaft (6) respectively; This vertical output shaft is positioned at the upper and lower of power plant (5); And under the drive of power plant (5), rotate around separately shaft axis; And two vertical output shafts (6) reach in the corresponding axial fan hub shell (3) away from an end of power plant, and all are set with said drive bevel gear (4) at two inserting ends;
Go up average level at two axial fan hub shells (3) and be provided with said executive module, the position of this executive module is corresponding one by one with said fan-catcher (2); Said executive module comprises horizontal axis (7), driven wheel of differential (8), horizontal branch stay tube (9), horizontal mounting pipe (10), worm screw (11) and worm gear (12); Wherein the inner of horizontal branch stay tube (9) and said axial fan hub shell (3) are fixing; The outer end of horizontal branch stay tube (9) and said horizontal mounting pipe (10) the concentric connection of inner end, the outside of this horizontal mounting pipe are positioned between two horizontal journal stirrups (2a) of said fan-catcher (2);
Said horizontal axis (7) passes through bearings in horizontal branch stay tube (9); The inner of horizontal axis (7) reaches in the said axial fan hub shell (3); And at the said driven wheel of differential of this inserting end suit (8); This driven wheel of differential (8) is meshed with said drive bevel gear (4), and the outer end of horizontal axis (7) and coaxial connection of said worm screw (11);
Said worm screw (11) and worm gear (12) all are contained in the horizontal mounting pipe (10); And worm screw (11) is meshed with worm gear (12); This worm gear set is loaded on the worm-wheel shaft (13), after the upper and lower end portion of worm-wheel shaft (13) passes the via hole on said horizontal mounting pipe (10) tube wall respectively, inserts in the mounting hole on the corresponding horizontal journal stirrup of said fan-catcher (2) (2a); And fan-catcher (2) can be followed worm-wheel shaft (13) and rotated together; Under the drive of said power plant (5), each fan-catcher (2) can be swung along circumferential synchronously, thus the propeller pitch angle (θ) of each fan-catcher of synchronization regulation (2).
When this controlling mechanism is installed; The lower end of a following axial fan hub shell is connected with the wheelboss flange dish; This wheelboss flange dish is located at the upper end of wheel hub main shaft, and this wheel hub main shaft is positioned at the top of wind-driven generator, and links to each other with the main shaft of wind-driven generator through coupling.During operation, rotate at said blade (1) wraparound commentaries on classics center under the effect of wind energy, thereby drive the generating of wind turbine power generation machine.
Shown in accompanying drawing 1 to 10; When need regulating the propeller pitch angle (θ) of blades (1), start power plant (5), these power plant drive two vertical output shafts (6) around separately shaft axis rotation; The vertical output shaft (6) that rotates drives drive bevel gear (4) rotation separately; Two drive bevel gear (4) of rotation drive each driven wheel of differential (8) that is engaged with simultaneously and rotate, and then drive said horizontal axis (7) rotation, and the horizontal axis of rotation (7) drives said worm screw (11) and rotates together; The worm screw (11) of rotating drives worm gear (12) rotation; The worm gear (12) of rotation drives worm-wheel shaft (13) and rotates, and finally drive each and regulate blade (1) synchronously along circumferentially swing, thus the propeller pitch angle (θ) of each fan-catcher of synchronization regulation (2).
When actual wind speed＜startup wind speed, wind-power electricity generation chance forced stoppage, and this controlling mechanism can increase the propeller pitch angle of each fan-catcher (2) synchronously, maximum can increase to 90 °, so just can protect blade well;
When starting wind speed＜actual wind speed＜rated wind speed, this propeller pitch angle controlling mechanism can reduce the propeller pitch angle of each fan-catcher (2) as much as possible, and I is decreased to 0 °, so just can effectively improve wind energy utilization, the output power of increase wind-driven generator;
When rated wind speed＜actual wind speed＜cut-out wind speed; This controlling mechanism can be regulated the propeller pitch angle of each fan-catcher (2) adaptively according to the size of actual wind speed; Thereby the output power that makes wind-driven generator is stabilized near the rated power, will avoid like this electrical network is produced bigger impact;
When actual wind speed＞cut-out wind speed, wind-power electricity generation chance forced stoppage, and this controlling mechanism can increase the propeller pitch angle of each fan-catcher (2) synchronously, maximum can increase to 90 °, so just can protect blade well.
The present invention can regulate the propeller pitch angle of blade as required, and propeller pitch angle that can each blade of synchronization regulation, avoids each blade discontinuity; Overcome the defective that conventional construction can not be regulated the blade propeller pitch angle well; Can either when wind-driven generator is shut down, protect blade well, can improve the output power of wind-driven generator again, also can the output power of blower fan be stabilized near its rated power; Avoid electrical network is produced big impact; And simple in structure, easy to make, have good technical and economic value, be suitable for large-scale promotion utilization in the vertical axis aerogenerator field.
In the present technique scheme; Said Power Component is made up of power plant (5), vertical output shaft (6), retarder (14) and coupling (15); Wherein power plant (5) are dual-axle motor, and two output terminals of this dual-axle motor link to each other with corresponding vertical output shaft (6) with coupling (15) through said retarder (14) respectively.In the present embodiment; The synchronism of the two vertical output shafts (6) that are connected with dual-axle motor is good; And the rotating speed of two vertical output shafts (6), turn to identically, so just can drive each blade (1) reliably, thereby the propeller pitch angle (θ) of each blade of synchronization regulation (1) synchronously along circumferentially swing.At this moment, in the executive module above on axial fan hub shell in rotation direction of worm screw and the executive module on the following axial fan hub shell rotation direction of worm screw opposite.Certainly; The present invention not restricted power device (5) is necessary for dual-axle motor; Also can adopt two as required back to the single shaft motor that is provided with, and the logical retarder (14) of all crossing of two single shaft motors output terminal separately links to each other with corresponding vertical output shaft (6) with coupling (15).
Said vertical tube assembly is made up of mounting pipe (16) and vertical tube (17), and wherein mounting pipe (16) is connected between two vertical tube (17), and three's tube core line is on same straight line; Said power plant (5) are installed in the mounting pipe (16), and two said vertical output shafts (6) then pass through bearings in the vertical tube (17) of correspondence, so just can carry out disassemble or assemble easily, and then be convenient to transportation, have improved the performance of this device effectively.
Said axial fan hub shell (3) is a rotary structure, and the outer wall of this axial fan hub shell is provided with horizontal support arm (3a), and the inner of said horizontal branch stay tube (9) is installed in this horizontal support arm (3a), and the cross section of horizontal branch stay tube (9) is oval.Above structure can not only be installed said horizontal branch stay tube (9) securely, and the cross section of horizontal branch stay tube (9) helps reducing turbulent flow.
The underpart of said worm-wheel shaft (13) is through in the mounting hole of bearings on a following horizontal journal stirrup (2a); The upper end portion of this worm-wheel shaft (13) is installed in the mounting hole on the top horizontal journal stirrup (2a) through flat key (18); So just can make said blade (1) follow worm-wheel shaft (13) reliably rotates together; And it is simple in structure, easy to make.
As optimization, said horizontal mounting pipe (10) is formed by upper and lower semicanal butt joint, and has the via hole that supplies said worm-wheel shaft (13) to pass on the upper and lower semicanal, so just screw rod, worm gear and worm-wheel shaft can be installed easily.
In the present technique scheme, the number of said blade (1) is generally 4, and each blade (1) is evenly distributed on the same circumference, and the number of blade (1) also can adjust accordingly according to actual needs certainly.
The present invention also provides a kind of vertical axis aerogenerator; Comprise generator; It is characterized in that: the propeller pitch angle controlling mechanism, air velocity transducer, propeller pitch angle angle transducer, power controller and the propeller pitch angle controller that also comprise the described vertical axis aerogenerator blade of claim 1; Wherein said air velocity transducer be used to detect actual wind speed and with this actual wind speed information with start wind speed, rated wind speed, cut-out wind speed and compare: send first control signal when the actual wind speed≤startups wind speed and give power controller, and when starting wind speed＜actual wind speed≤rated wind speed, send second control signal to power controller;
Said propeller pitch angle angle transducer is used to detect the actual blade pitch angle and this actual blade pitch angle information is sent to the propeller pitch angle controller;
Said power controller is used for when receiving first control signal, sending 90 ° of propeller pitch angle values and gives this propeller pitch angle controller, and when receiving second control signal, starts 0 ° of propeller pitch angle value to give this propeller pitch angle controller;
Said propeller pitch angle controller is used for the propeller pitch angle controlling mechanism medium power device according to these 90 ° of propeller pitch angle values or 0 ° of described vertical axis aerogenerator blade of propeller pitch angle value control claim 1; Accordingly this actual blade pitch angle is adjusted to 90 ° or 0 °, and stops to regulate when equaling 90 ° or 0 ° at this actual blade pitch angle.
When actual wind speed＜startup wind speed, wind-power electricity generation chance forced stoppage, and this controlling mechanism can increase the propeller pitch angle of each fan-catcher (2) synchronously, maximum can increase to 90 °, so just can protect blade well;
When starting wind speed＜actual wind speed＜rated wind speed, this propeller pitch angle controlling mechanism can reduce the propeller pitch angle of each fan-catcher (2) as much as possible, and I is decreased to 0 °, so just can effectively improve wind energy utilization, the output power of increase wind-driven generator.
This vertical axis aerogenerator also comprises blade speed probe and output power detector; Wherein said air velocity transducer is used for this actual wind speed information is sent to power controller, and when rated wind speed＜actual wind speed≤cut-out wind speed, sends the 3rd control signal and give power controller;
Said blade speed probe is used to detect the blade rotating speed and this blade rotary speed information is sent to power controller;
Said output power detector is used to detect rated power and the output power of generator and the rated power and the output power signal of this generator is sent to power controller;
Said power controller is used for when receiving the 3rd control signal, calculating best propeller pitch angle value and should the best propeller pitch angle value sending to the propeller pitch angle controller according to actual wind speed information, blade rotary speed information, rated power information and output power information;
Said propeller pitch angle controller is used for the propeller pitch angle controlling mechanism medium power device according to the described vertical axis aerogenerator blade of this best propeller pitch angle value control claim 1; The actual blade pitch angle is adjusted to this best propeller pitch angle, and stops to regulate when equaling this best propeller pitch angle at this actual blade pitch angle.
When rated wind speed＜actual wind speed＜cut-out wind speed; This controlling mechanism can be regulated the propeller pitch angle of each fan-catcher (2) adaptively according to the size of actual wind speed; Thereby the output power that makes wind-driven generator is stabilized near the rated power, will avoid like this electrical network is produced bigger impact.
This vertical axis aerogenerator also comprises braking device, and wherein said air velocity transducer is used for when actual wind speed＞cut-out wind speed, sending the 4th control signal and gives power controller;
Said power controller is used for when receiving the 4th control signal or stopping signal, sending 90 ° of propeller pitch angle values and gives the propeller pitch angle controller;
Said propeller pitch angle controller is used for the propeller pitch angle controlling mechanism medium power device according to these 90 ° of described vertical axis aerogenerator blades of propeller pitch angle value control claim 1; The actual blade pitch angle is adjusted to 90 ° of propeller pitch angles, and sends brake signal when equaling 90 ° of propeller pitch angles and give this braking device at this actual blade pitch angle;
This braking device is used for control brake shutdown when receiving this brake signal.
When actual wind speed＞cut-out wind speed, wind-power electricity generation chance forced stoppage, and this controlling mechanism can increase the propeller pitch angle of each fan-catcher (2) synchronously, maximum can increase to 90 °, so just can protect blade well.
Beneficial effect: the present invention can regulate the propeller pitch angle of blade as required; And propeller pitch angle that can each blade of synchronization regulation, overcome the defective that conventional construction can not be regulated the blade propeller pitch angle well, can either, wind-driven generator protect blade when shutting down well; Can improve the output power of wind-driven generator again; Also can the output power of blower fan be stabilized near its rated power, avoid electrical network is produced big impact, and simple in structure, easy to make; Have good technical and economic value, be suitable for large-scale promotion utilization in the vertical axis aerogenerator field.
Description of drawings
Fig. 1 is a plan view of the present invention;
Fig. 2 is the propeller pitch angle θ definition schematic representation of blade 1 of the present invention;
Schematic representation when Fig. 3 changes for the propeller pitch angle θ of blade 1 among Fig. 1;
Fig. 4 is that the A-A of Fig. 1 is to sectional view;
Fig. 5 is the partial enlarged drawing of B part among Fig. 4;
Fig. 6 is the partial enlarged drawing of C part among Fig. 4;
Fig. 7 is the partial enlarged drawing of D part among Fig. 4;
Fig. 8 is that the E-E of Fig. 4 is to sectional view;
Fig. 9 is that the F-F of Fig. 4 is to sectional view;
Figure 10 is that the G-G of Fig. 4 is to sectional view;
Figure 11 is the circuit theory diagrams of vertical axis aerogenerator.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Like Fig. 1,3, shown in 4 and 5; This controlling mechanism mainly is made up of blade 1, fan-catcher 2, axial fan hub shell 3, drive bevel gear 4, Power Component, vertical tube assembly and executive module etc.; Wherein blade 1 is distributed on the same circumference, and this blade 1 is vertical setting.In the present embodiment, the number of said blade 1 is 4, and is evenly distributed on the same circumference, also can adopt the blade of other number certainly, as 3,5,6
For the ease of fixed blades 1, the spy is set with a fan-catcher 2 respectively in the upper and lower of each blade 1, and this fan-catcher 2 has two horizontal journal stirrup 2a, and these two horizontal journal stirrup 2a go to upper and lower and are arranged side by side.
As inventive point of the present invention, said Power Component, vertical tube assembly, executive module, axial fan hub shell 3 and drive bevel gear 4 are set in the inboard of above-mentioned blade 1 place circle.Said vertical tube assembly is made up of mounting pipe 12 and vertical tube 13, and wherein mounting pipe 12 is connected between two vertical tube 13, and three's tube core line is on same straight line.Upper and lower end at above-mentioned vertical tube assembly is arranged with said axial fan hub shell 3, is specially two axial fan hub shells 3 respectively through vertical tube corresponding in screw and the vertical tube assembly 13 fixed connections.
Said axial fan hub shell 3 is a rotary structure; The tube core line of its center line and said vertical tube 13 is on same straight line; And the outer wall upper edge circumference of axial fan hub shell 3 evenly is provided with 4 horizontal support arm 3a; This horizontal support arm 3a is used to support said executive module, and horizontal support arm 3a communicates with the inner chamber of axial fan hub shell 3.In addition; Above the top of an axial fan hub shell 3 be connected with top cover 19 through screw; The lower end of an axial fan hub shell 3 is connected with wheelboss flange dish 20 below when this controlling mechanism is installed; This wheelboss flange dish 20 is located at the upper end of wheel hub main shaft 21, and this wheel hub main shaft 21 is positioned at the top of wind-driven generator 22, and links to each other with the main shaft of wind-driven generator 22 through coupling (unmarked among the figure).
Can find out like Fig. 1 and Fig. 3～6; Said Power Component is installed in the vertical tube assembly; This Power Component comprises power plant 5 and vertical output shaft 6, and wherein vertically output shaft 6 symmetries are located at the above and below of power plant 5, and under the drive of power plant 5, rotates around separately shaft axis; And two vertical output shafts 6 reach in the corresponding axial fan hub shell 3 away from an end of power plant, and all are set with said drive bevel gear 4 at two inserting ends.
In the present embodiment; Said Power Component is made up of power plant 5, vertical output shaft 6, retarder 10 and coupling 11; Wherein power plant 5 are the dual-axle motor of outsourcing; This dual-axle motor has two output terminals, and a wherein top output terminal links to each other with a said vertical output shaft 6 of power plant 5 tops with coupling 11 through said retarder 10.Below output terminal link to each other with a said vertical output shaft 6 of power plant 5 belows with coupling 11 through said retarder 10.And two vertical output shafts 6 pass through bearings in the said vertical tube 13 of correspondence, and the tube core line of the shaft axis of vertical output shaft 6 and this vertical tube 13 is on same straight line.In addition, said power plant 5 in mounting pipe 12, when these power plant 5 start, can drive two said vertical output shafts 6 around separately shaft axis rotation, and the rotational velocity of two vertical output shafts 6 are all identical with direction through screw.Certainly, the present invention not restricted power device 5 is necessary for dual-axle motor, and these power plant 5 also can adopt two back to the single shaft motor that is provided with.
Can draw like Fig. 1～10, average level is provided with said executive module on two axial fan hub shells 3, and the position of this executive module is corresponding one by one with said fan-catcher 2.In the present embodiment, above an axial fan hub shell 3 be provided with 4 executive modules, these 4 executive modules that the position is set is corresponding one by one with the fan-catcher 2 on 4 blade 1 tops; And also be provided with 4 executive modules on the following axial fan hub shell 3, these 4 executive modules that the position is set is corresponding one by one with the fan-catcher 2 of 4 blade 1 bottoms.
Said executive module is made up of horizontal axis 7, driven wheel of differential 8, horizontal branch stay tube 9, horizontal mounting pipe 10, worm screw 11, worm gear 12, worm-wheel shaft 13, flat key 18 and worm screw coupling 23; Wherein the cross section of horizontal branch stay tube 9 is oval; The inner of this horizontal branch stay tube 9 and said axial fan hub shell 3 are fixing, and the inner that is specially horizontal branch stay tube 9 is fixed in the horizontal support arm 3a of axial fan hub shell 3.Insert in the mouth of pipe of said horizontal mounting pipe 10 inner ends the outer end of above-mentioned horizontal branch stay tube 9, and both link together with one heart, and the outside of this horizontal mounting pipe 10 is between two horizontal journal stirrup 2a of said fan-catcher 2.Said horizontal mounting pipe 10 is formed by upper tube half and lower tube half butt joint, and has the via hole that supplies said worm-wheel shaft 13 to pass on the tube wall of upper tube half and lower tube half respectively.
Also can further draw like Fig. 1～10; Said horizontal axis 7 passes through bearings in horizontal branch stay tube 9; The inner of horizontal axis 7 reaches in the said axial fan hub shell 3, and at the said driven wheel of differential 8 of this inserting end suit, this driven wheel of differential 8 is meshed with said drive bevel gear 4.The outer end of above-mentioned horizontal axis 7 is through worm screw coupling 23 and said 11 coaxial connections of worm screw.
Said worm screw 11 all is contained in the horizontal mounting pipe 10 with worm gear 12, and worm screw 11 is meshed with worm gear 12, and this worm gear 12 is set on the worm-wheel shaft 13.The upper end portion of above-mentioned worm-wheel shaft 13 pass on said horizontal mounting pipe 10 upper tube half via hole after; Insert above the said fan-catcher in the mounting hole on the horizontal journal stirrup 2a; And be installed in the mounting hole on the top horizontal journal stirrup 2a through said flat key 18; Be specially in the mounting hole that is connected on this horizontal journal stirrup 2a of flat key 18, another one of flat key 18 is stuck in the keyway of said installation worm-wheel shaft 13 upper end portions.The underpart of said worm-wheel shaft 13 pass on said horizontal mounting pipe 10 lower tube half via hole after; Insert below the said fan-catcher in the mounting hole on the horizontal journal stirrup 2a; And through bearings below in the mounting hole on horizontal journal stirrup 2a; So just can make fan-catcher 2 follow worm-wheel shaft 13 reliably and rotate together, and then make blade 1 follow worm-wheel shaft 13 to rotate together.Under the drive of said power plant 5, each fan-catcher 2 can be swung along circumferential synchronously, thus the propeller pitch angle θ of each fan-catcher 2 of synchronization regulation.
Can draw like Fig. 1～9; Because present embodiment medium power device 5 is a dual-axle motor; Two vertical output shaft 6 rotational velocity that this power plant 5 drive are all identical with direction, thus in top 4 executive modules in the rotation direction of worm screw 11 and following 4 executive modules rotation direction of worm screw 11 on the contrary necessary.Because only in this way could guarantee under the drive of said power plant 5, said blade 1 is along circumferentially swing, and in vertical plane, do not twist, and each blade 1 swings synchronously, thus the propeller pitch angle of each blade 1 of synchronization regulation.Certainly, if adopt two to serve as power plant 5 back to the single shaft motors that are provided with, can be in order to guarantee each blade 1 synchronously along circumferentially swing, these two single shaft rotating speed of motor are necessary identical, and two single shaft motors both turn to can be identical also can be opposite.When turning to of two single shaft motors was identical, these two single shaft motors just were equivalent to a dual-axle motor, and the rotation direction of worm screw 11 must be opposite in the rotation direction of worm screw 11 and following 4 executive modules in top 4 executive modules at this moment.When the switched in opposite of two single shaft motors, in this moment top 4 executive modules in the rotation direction of worm screw 11 and following 4 executive modules rotation direction of worm screw 11 necessary identical.
Shown in figure 11; This vertical axis aerogenerator comprises propeller pitch angle controlling mechanism, generator, air velocity transducer, blade speed probe, output power detector, propeller pitch angle angle transducer, braking device, power controller and the propeller pitch angle controller of above-mentioned vertical axis aerogenerator blade, wherein this air velocity transducer be used to detect actual wind speed and with this actual wind speed information with start wind speed, rated wind speed, cut-out wind speed and compare: send first control signal to power controller when the actual wind speed≤startups wind speed; When starting wind speed＜actual wind speed≤rated wind speed, send second control signal and give power controller; When rated wind speed＜actual wind speed≤cut-out wind speed, send the 3rd control signal and give power controller; When actual wind speed＞cut-out wind speed, send the 4th control signal and give power controller.
This propeller pitch angle angle transducer is used to detect the actual blade pitch angle and this actual blade pitch angle information is sent to the propeller pitch angle controller.This power controller is used for when receiving first control signal, sending 90 ° of propeller pitch angle values and gives this propeller pitch angle controller.This propeller pitch angle controller is controlled the power plant 5 in the above-mentioned propeller pitch angle controlling mechanism according to these 90 ° of propeller pitch angle values; This power plant 5 drive two vertical output shafts 6 around separately shaft axis rotation; The vertical output shaft 6 that rotates drives drive bevel gear 4 rotations separately, and two drive bevel gear 4 of rotation drive each driven wheel of differential 8 that is engaged with simultaneously and rotate, and then drives said horizontal axis 7 rotations; The horizontal axis 7 of rotation drives said worm screw 11 and rotates together; The worm screw 11 of rotating drives worm gear 12 rotations, and the worm gear 12 of rotation drives worm-wheel shaft 13 and rotates, and finally drives each and regulates blade 1 synchronously along circumferentially swing; Thereby with the actual blade pitch angle θ synchronization regulation of each fan-catcher 2 is 90 °, and stops when θ equals 90 ° regulating at this actual blade pitch angle.
In like manner, this air velocity transducer is used for this actual wind speed information is sent to power controller; This blade speed probe is used to detect the blade rotating speed and this blade rotary speed information is sent to power controller; This output power detector is used to detect rated power and the output power of generator and the rated power and the output power signal of this generator is sent to power controller.Power controller is used for when receiving the 3rd control signal, calculating best propeller pitch angle value and should the best propeller pitch angle value sending to the propeller pitch angle controller according to actual wind speed information, blade rotary speed information, rated power information and output power information.The propeller pitch angle controller is used for controlling above-mentioned propeller pitch angle controlling mechanism medium power device according to this best propeller pitch angle value, and the actual blade pitch angle is adjusted to this best propeller pitch angle, and stops to regulate when equaling this best propeller pitch angle at this actual blade pitch angle.It should be noted: the computational process of best propeller pitch angle value is mature technique when rated wind speed＜actual wind speed≤cut-out wind speed, no longer tires out at this and states.
Power controller is used for when receiving the 4th control signal or stopping signal, sending 90 ° of propeller pitch angle values and gives the propeller pitch angle controller.The propeller pitch angle controller is used for controlling above-mentioned propeller pitch angle controlling mechanism medium power device according to these 90 ° of propeller pitch angle values, and the actual blade pitch angle is adjusted to 90 ° of propeller pitch angles, and sends brake signal when equaling 90 ° of propeller pitch angles at this actual blade pitch angle and give this braking device; This braking device is used for control brake shutdown when receiving this brake signal.
In vertical axis aerogenerator of the present invention; The blade speed probe can be installed in such as on the vertical output shaft 6 in the vertical axis aerogenerator blade turning radius controlling mechanism; The propeller pitch angle angle transducer can be arranged on the conduit 9; Also can be arranged on positions such as horizontal branch stay tube 14; And air velocity transducer, output power detector, power controller and change radius controller etc. can be provided with separately respectively, can be one with this vertical axis aerogenerator blade turning radius controlling mechanism stack mounting also.
The above is merely preferred embodiment of the present invention, is not restriction with the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the propeller pitch angle controlling mechanism of a vertical axis aerogenerator blade; Comprise the blade (1) that is distributed on the same circumference; This blade is vertical setting; And the upper and lower part of each blade (1) is set with a fan-catcher (2) respectively, and the back side of this fan-catcher has two upper and lower horizontal journal stirrups (2a) that are arranged side by side, and it is characterized in that: the inboard of circle is provided with Power Component, vertical tube assembly, executive module, axial fan hub shell (3) and drive bevel gear (4) at said blade (1) place; Wherein axial fan hub shell (3) symmetry is located at the upper and lower end of said vertical tube assembly; Said Power Component is set in the vertical tube assembly, and this Power Component comprises power plant (5) and vertical output shaft (6), and wherein two output terminals of power plant (5) link to each other with corresponding said vertical output shaft (6) respectively; This vertical output shaft is positioned at the upper and lower of power plant (5); And under the drive of power plant (5), rotate around separately shaft axis, and two vertical output shafts (6) reach in the corresponding axial fan hub shell (3) away from an end of power plant, and all be set with said drive bevel gear (4) at two inserting ends;
Go up average level at two axial fan hub shells (3) and be provided with said executive module, the position of this executive module is corresponding one by one with said fan-catcher (2); Said executive module comprises horizontal axis (7), driven wheel of differential (8), horizontal branch stay tube (9), horizontal mounting pipe (10), worm screw (11) and worm gear (12); Wherein the inner of horizontal branch stay tube (9) and said axial fan hub shell (3) are fixing; The outer end of horizontal branch stay tube (9) and said horizontal mounting pipe (10) the concentric connection of inner end, the outside of this horizontal mounting pipe are positioned between two horizontal journal stirrups (2a) of said fan-catcher (2);
Said horizontal axis (7) passes through bearings in horizontal branch stay tube (9); The inner of horizontal axis (7) reaches in the said axial fan hub shell (3); And at the said driven wheel of differential of this inserting end suit (8); This driven wheel of differential (8) is meshed with said drive bevel gear (4), and the outer end of horizontal axis (7) and coaxial connection of said worm screw (11);
Said worm screw (11) and worm gear (12) all are contained in the horizontal mounting pipe (10); And worm screw (11) is meshed with worm gear (12); This worm gear set is loaded on the worm-wheel shaft (13), after the upper and lower end portion of worm-wheel shaft (13) passes the via hole on said horizontal mounting pipe (10) tube wall respectively, inserts in the mounting hole on the corresponding horizontal journal stirrup of said fan-catcher (2) (2a); And fan-catcher (2) can be followed worm-wheel shaft (13) and rotated together; Under the drive of said power plant (5), each fan-catcher (2) can be swung along circumferential synchronously, thus the propeller pitch angle (θ) of each fan-catcher of synchronization regulation (2).
2. according to the propeller pitch angle controlling mechanism of the said vertical axis aerogenerator blade of claim 1; It is characterized in that: said Power Component is made up of power plant (5), vertical output shaft (6), retarder (14) and coupling (15); Wherein power plant (5) are dual-axle motor, and two output terminals of this dual-axle motor link to each other with corresponding vertical output shaft (6) with coupling (15) through said retarder (14) respectively.
3. according to the propeller pitch angle controlling mechanism of the said vertical axis aerogenerator blade of claim 2; It is characterized in that: said vertical tube assembly is made up of mounting pipe (16) and vertical tube (17); Wherein mounting pipe (16) is connected between two vertical tube (17), and three's tube core line is on same straight line; Said power plant (5) are installed in the mounting pipe (16), and two said vertical output shafts (6) then pass through bearings in the vertical tube (17) of correspondence.
4. according to the propeller pitch angle controlling mechanism of claim 1 or 3 said vertical axis aerogenerator blades; It is characterized in that: said axial fan hub shell (3) is a rotary structure; The outer wall of this axial fan hub shell is provided with horizontal support arm (3a); The inner of said horizontal branch stay tube (9) is installed in this horizontal support arm (3a), and the cross section of horizontal branch stay tube (9) is oval.
5. according to the propeller pitch angle controlling mechanism of the said vertical axis aerogenerator blade of claim 4; It is characterized in that: the underpart of said worm-wheel shaft (13) is through in the mounting hole of bearings on a following horizontal journal stirrup (2a), and the upper end portion of this worm-wheel shaft (13) is installed in the mounting hole on the top horizontal journal stirrup (2a) through flat key (18).
6. according to the propeller pitch angle controlling mechanism of the said vertical axis aerogenerator blade of claim 5, it is characterized in that: said horizontal mounting pipe (10) is formed by upper and lower semicanal butt joint, and has the via hole that supplies said worm-wheel shaft (13) to pass on the upper and lower semicanal.
7. according to the propeller pitch angle controlling mechanism of the said vertical axis aerogenerator blade of claim 6, it is characterized in that: the number of said blade (1) is 4, and each blade (1) is evenly distributed on the same circumference.
8. vertical axis aerogenerator; Comprise generator; It is characterized in that: the propeller pitch angle controlling mechanism, air velocity transducer, propeller pitch angle angle transducer, power controller and the propeller pitch angle controller that also comprise the described vertical axis aerogenerator blade of claim 1; Wherein said air velocity transducer be used to detect actual wind speed and with this actual wind speed information with start wind speed, rated wind speed, cut-out wind speed and compare: send first control signal when the actual wind speed≤startups wind speed and give power controller, and when starting wind speed＜actual wind speed≤rated wind speed, send second control signal to power controller;
Said propeller pitch angle angle transducer is used to detect the actual blade pitch angle and this actual blade pitch angle information is sent to the propeller pitch angle controller;
Said power controller is used for when receiving first control signal, sending 90 ° of propeller pitch angle values and gives this propeller pitch angle controller, and when receiving second control signal, starts 0 ° of propeller pitch angle value to give this propeller pitch angle controller;
Said propeller pitch angle controller is used for the propeller pitch angle controlling mechanism medium power device according to these 90 ° of propeller pitch angle values or 0 ° of described vertical axis aerogenerator blade of propeller pitch angle value control claim 1; Accordingly this actual blade pitch angle is adjusted to 90 ° or 0 °, and stops to regulate when equaling 90 ° or 0 ° at this actual blade pitch angle.
9. vertical axis aerogenerator according to claim 8; It is characterized in that: also comprise blade speed probe and output power detector; Wherein said air velocity transducer is used for this actual wind speed information is sent to power controller, and when rated wind speed＜actual wind speed≤cut-out wind speed, sends the 3rd control signal and give power controller;
Said blade speed probe is used to detect the blade rotating speed and this blade rotary speed information is sent to power controller;
Said output power detector is used to detect rated power and the output power of generator and the rated power and the output power signal of this generator is sent to power controller;
Said power controller is used for when receiving the 3rd control signal, calculating best propeller pitch angle value and should the best propeller pitch angle value sending to the propeller pitch angle controller according to actual wind speed information, blade rotary speed information, rated power information and output power information;
Said propeller pitch angle controller is used for the propeller pitch angle controlling mechanism medium power device according to the described vertical axis aerogenerator blade of this best propeller pitch angle value control claim 1; The actual blade pitch angle is adjusted to this best propeller pitch angle, and stops to regulate when equaling this best propeller pitch angle at this actual blade pitch angle.
10. according to Claim 8 or 9 described vertical axis aerogenerators, it is characterized in that: also comprise braking device, wherein said air velocity transducer is used for when actual wind speed＞cut-out wind speed, sending the 4th control signal and gives power controller;
Said power controller is used for when receiving the 4th control signal or stopping signal, sending 90 ° of propeller pitch angle values and gives the propeller pitch angle controller;
Said propeller pitch angle controller is used for the propeller pitch angle controlling mechanism medium power device according to these 90 ° of described vertical axis aerogenerator blades of propeller pitch angle value control claim 1; The actual blade pitch angle is adjusted to 90 ° of propeller pitch angles, and sends brake signal when equaling 90 ° of propeller pitch angles and give this braking device at this actual blade pitch angle;
This braking device is used for control brake shutdown when receiving this brake signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210076648 CN102588215B (en) | 2012-03-21 | 2012-03-21 | Pitch angle adjusting mechanism for blades of vertical axis wind generator and vertical axis wind generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210076648 CN102588215B (en) | 2012-03-21 | 2012-03-21 | Pitch angle adjusting mechanism for blades of vertical axis wind generator and vertical axis wind generator |
Publications (2)
| Publication Number | Publication Date |
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| CN102588215A true CN102588215A (en) | 2012-07-18 |
| CN102588215B CN102588215B (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210076648 Expired - Fee Related CN102588215B (en) | 2012-03-21 | 2012-03-21 | Pitch angle adjusting mechanism for blades of vertical axis wind generator and vertical axis wind generator |
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| CN (1) | CN102588215B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748217A (en) * | 2012-07-27 | 2012-10-24 | 国电联合动力技术有限公司 | Dynamically optimal blade pitch angle control method and device of wind generator set |
| CN105545602A (en) * | 2016-01-11 | 2016-05-04 | 南通大学 | Vertical axis wind turbine with rotating cylinders on front edge |
| CN106468243A (en) * | 2015-08-17 | 2017-03-01 | 操辉 | Vertical pivot gravitational equilibrium blade wind power generation machine |
| CN107781103A (en) * | 2017-11-21 | 2018-03-09 | 张广明 | Actively receive wind motor |
| CN111194382A (en) * | 2017-07-04 | 2020-05-22 | 维特根有限公司 | Wind turbine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626349A (en) * | 2015-12-21 | 2016-06-01 | 浙江海洋学院 | Flap type vertical axis water turbine |
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| US4160170A (en) * | 1978-06-15 | 1979-07-03 | United Technologies Corporation | Wind turbine generator pitch control system |
| JP2004052649A (en) * | 2002-07-19 | 2004-02-19 | Meidensha Corp | Output power smoothing control device of wind power generator |
| CN1664358A (en) * | 2004-03-02 | 2005-09-07 | 金东龙 | Wind driven power generating system |
| CN202545113U (en) * | 2012-03-21 | 2012-11-21 | 罗洋 | Pitch angle adjusting mechanism for vertical shaft wind turbine blade |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4160170A (en) * | 1978-06-15 | 1979-07-03 | United Technologies Corporation | Wind turbine generator pitch control system |
| JP2004052649A (en) * | 2002-07-19 | 2004-02-19 | Meidensha Corp | Output power smoothing control device of wind power generator |
| CN1664358A (en) * | 2004-03-02 | 2005-09-07 | 金东龙 | Wind driven power generating system |
| CN202545113U (en) * | 2012-03-21 | 2012-11-21 | 罗洋 | Pitch angle adjusting mechanism for vertical shaft wind turbine blade |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748217A (en) * | 2012-07-27 | 2012-10-24 | 国电联合动力技术有限公司 | Dynamically optimal blade pitch angle control method and device of wind generator set |
| CN102748217B (en) * | 2012-07-27 | 2014-01-08 | 国电联合动力技术有限公司 | Dynamically optimal blade pitch angle control method and device of wind generator set |
| CN106468243A (en) * | 2015-08-17 | 2017-03-01 | 操辉 | Vertical pivot gravitational equilibrium blade wind power generation machine |
| CN105545602A (en) * | 2016-01-11 | 2016-05-04 | 南通大学 | Vertical axis wind turbine with rotating cylinders on front edge |
| CN105545602B (en) * | 2016-01-11 | 2018-01-09 | 南通大学 | Leading edge adds the vertical axis windmill of rotating cylindrical |
| CN111194382A (en) * | 2017-07-04 | 2020-05-22 | 维特根有限公司 | Wind turbine |
| CN107781103A (en) * | 2017-11-21 | 2018-03-09 | 张广明 | Actively receive wind motor |
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|---|---|
| CN102588215B (en) | 2013-08-21 |
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