CN102588215B - 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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- CN102588215B CN102588215B CN 201210076648 CN201210076648A CN102588215B CN 102588215 B CN102588215 B CN 102588215B CN 201210076648 CN201210076648 CN 201210076648 CN 201210076648 A CN201210076648 A CN 201210076648A CN 102588215 B CN102588215 B CN 102588215B
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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
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- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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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 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 represented is the wind energy utilization of blade, and propeller pitch angle is more big, and its wind energy utilization is just more low, and under the situation of identical wind speed, propeller pitch angle is more big, 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 °, in order to improve wind energy utilization, increase the output power of wind-driven generator;
When rated wind speed＜actual wind speed＜cut-out wind speed, need the 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, cause output power and its rated power deviation of wind-driven generator 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 as follows: 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 on each blade (1), the bottom is set with a fan-catcher (2) respectively, the back side of this fan-catcher has on two, the horizontal journal stirrup (2a) that is arranged side by side down, it is characterized in that: the inboard at described blade (1) place circle arranges Power Component, the vertical tube assembly, executive module, axial fan hub shell (3) and drive bevel gear (4), wherein axial fan hub shell (3) symmetry be located at described vertical tube assembly on, the lower end, described Power Component is set in the vertical tube assembly, this Power Component comprises power plant (5) and vertical output shaft (6), wherein power plant
(5) two output terminals are continuous with corresponding described 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 described drive bevel gear (4) at two inserting ends;
Go up equal level at two axial fan hub shells (3) and be provided with described executive module, the position of this executive module is corresponding one by one with described fan-catcher (2); Described executive module comprises horizontal axis (7), driven wheel of differential (8), horizontal support pipe (9), horizontal mounting pipe (10), worm screw (11) and worm gear (12), wherein the inner of horizontal support pipe (9) and described axial fan hub shell (3) are fixing, the outer end of horizontal support pipe (9) and described 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 described fan-catcher (2);
Described horizontal axis (7) by bearings in horizontal support pipe (9), the inner of horizontal axis (7) reaches in the described axial fan hub shell (3), and at the described driven wheel of differential of this inserting end suit (8), this driven wheel of differential (8) is meshed with described drive bevel gear (4), and the outer end of horizontal axis (7) and coaxial connection of described worm screw (11);
Described 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), on the worm-wheel shaft (13), after the underpart is passed via hole on described horizontal mounting pipe (10) tube wall respectively, insert in the mounting hole on the corresponding horizontal journal stirrup of described fan-catcher (2) (2a), and fan-catcher (2) can be followed worm-wheel shaft (13) and be rotated together, under the drive of described 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 by coupling.During operation, rotate at described 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 needing to regulate the propeller pitch angle (θ) of blade (1), start power plant (5), this 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 described horizontal axis (7) rotation, the horizontal axis (7) of rotation drives described 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, final each adjusting blade (1) that drives is 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; avoid each blade discontinuity; overcome the defective that conventional construction can not be regulated the blade propeller pitch angle well; can either when shutting down, wind-driven generator protect blade well; can improve the output power of wind-driven generator again; also the output power of blower fan can be stabilized near its rated power; avoid electrical network is produced big impact; and it is simple in structure; easy to make; have good technical and economic value, be suitable for using in vertical axis aerogenerator field large-scale promotion.
In the technical program, described Power Component is made 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) by described retarder (14) and coupling (15) 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 synchronously along circumferentially swing, thereby the propeller pitch angle (θ) of each blade of synchronization regulation (1).At this moment, the rotation direction of worm screw is opposite in the executive module in the executive module above on axial fan hub shell on the rotation direction of worm screw and the following axial fan hub shell.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 arranges, and logical retarder (14) and the coupling (15) all crossed of two single shaft motors output terminal separately links to each other with corresponding vertical output shaft (6).
Described vertical tube assembly is made 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; Described power plant (5) are installed in the mounting pipe (16), two described vertical output shafts (6) then by bearings in the vertical tube (17) of correspondence, so just can carry out disassemble or assemble easily, and then be convenient to transportation, improved the performance of this device effectively.
Described axial fan hub shell (3) is rotary structure, the outer wall of this axial fan hub shell is provided with horizontal support arm (3a), the inner of described horizontal support pipe (9) is installed in this horizontal support arm (3a), and the cross section of horizontal support pipe (9) is oval.Above structure can not only be installed described horizontal support pipe (9) securely, and the cross section of horizontal support pipe (9) is conducive to reduce turbulent flow.
The underpart of described worm-wheel shaft (13) is by 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) by flat key (18), so just can make described blade (1) follow worm-wheel shaft (13) reliably rotates together, and it is simple in structure, easy to make.
As optimization, described horizontal mounting pipe (10) is formed by upper and lower semicanal butt joint, and has the via hole that passes for described worm-wheel shaft (13) on the upper and lower semicanal, so just screw rod, worm gear and worm-wheel shaft can be installed easily.
In the technical program, the number of described 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 that also comprises the described vertical axis aerogenerator blade of claim 1, air velocity transducer, the propeller pitch angle angle transducer, power controller and propeller pitch angle controller, wherein said air velocity transducer is for detection of actual wind speed and with this actual wind speed information and startup wind speed, rated wind speed, cut-out wind speed compares: send first control signal to power controller when actual wind speed≤startup wind speed, and send second control signal to power controller when starting wind speed＜actual wind speed≤rated wind speed;
Described propeller pitch angle angle transducer is for detection of the actual blade pitch angle and this actual blade pitch angle information is sent to the propeller pitch angle controller;
Described power controller is used for sending 90 ° of propeller pitch angle values to this propeller pitch angle controller when receiving first control signal, and starts 0 ° of propeller pitch angle value to give this propeller pitch angle controller when receiving second control signal;
Described 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 sends the 3rd control signal to power controller when rated wind speed＜actual wind speed≤cut-out wind speed;
Described blade speed probe is for detection of the blade rotating speed and this blade rotary speed information is sent to power controller;
Described output power detector also sends to power controller with rated power and the output power signal of this generator for detection of rated power and the output power of generator;
Described power controller is used for 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 when receiving the 3rd control signal;
Described 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 sending the 4th control signal to power controller when actual wind speed＞cut-out wind speed;
Described power controller is used for sending 90 ° of propeller pitch angle values to the propeller pitch angle controller when receiving the 4th control signal or stopping signal;
Described 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 to this braking device when equaling 90 ° of propeller pitch angles 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 when shutting down, wind-driven generator protect blade well; can improve the output power of wind-driven generator again; also the output power of blower fan can be stabilized near its rated power; avoid electrical network is produced big impact; and it is simple in structure, easy to make; have good technical and economic value, be suitable for using in vertical axis aerogenerator field large-scale promotion.
Description of drawings
Fig. 1 is 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
The invention will be further described below in conjunction with drawings and Examples:
Shown in Fig. 1,3,4 and 5, this controlling mechanism mainly is made 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 described 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, in the inboard of above-mentioned blade 1 place circle described Power Component, vertical tube assembly, executive module, axial fan hub shell 3 and drive bevel gear 4 are set.Described vertical tube assembly is made 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 described axial fan hub shell 3, and it is fixedly connected by vertical tube 13 corresponding in screw and the vertical tube assembly respectively to be specially two axial fan hub shells 3.
Described axial fan hub shell 3 is rotary structure, the tube core line of its center line and described 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 for supporting described 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 by 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, 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 by coupling (unmarked among the figure).
Can find out as Fig. 1 and Fig. 3～6, described Power Component is installed in the vertical tube assembly, this Power Component comprises power plant 5 and vertical output shaft 6, wherein vertical output shaft 6 symmetries are located at the above and below 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 described drive bevel gear 4 at two inserting ends.
In the present embodiment, described Power Component is made 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 wherein a top output terminal links to each other with a described vertical output shaft 6 of power plant 5 tops with coupling 11 by described retarder 10.Below output terminal link to each other with a described vertical output shaft 6 of power plant 5 belows with coupling 11 by described retarder 10.And, two vertical output shafts 6 by bearings in the described vertical tube 13 of correspondence, and vertically the tube core line of the shaft axis of output shaft 6 and this vertical tube 13 on same straight line.In addition, described power plant 5 are fixed in the mounting pipe 12 by screw, when this power plant 5 start, can drive two described vertical output shafts 6 around separately shaft axis rotation, and the rotational velocity of two vertical output shafts 6 are all identical with direction.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 arranges.
Can draw as Fig. 1～10, all level is provided with described executive module on two axial fan hub shells 3, and the position of this executive module is corresponding one by one with described 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.
Described executive module is made of horizontal axis 7, driven wheel of differential 8, horizontal support pipe 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 support pipe 9 is oval, the inner of this horizontal support pipe 9 and described axial fan hub shell 3 are fixing, and the inner that is specially horizontal support pipe 9 is fixed in the horizontal support arm 3a of axial fan hub shell 3.Insert in the mouth of pipe of described horizontal mounting pipe 10 inner ends the outer end of above-mentioned horizontal support pipe 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 described fan-catcher 2.Described horizontal mounting pipe 10 is formed by upper tube half and lower tube half butt joint, and has the via hole that passes for described worm-wheel shaft 13 on the tube wall of upper tube half and lower tube half respectively.
Also can further draw as Fig. 1～10, described horizontal axis 7 by bearings in horizontal support pipe 9, the inner of horizontal axis 7 reaches in the described axial fan hub shell 3, and at the described driven wheel of differential 8 of this inserting end suit, this driven wheel of differential 8 is meshed with described drive bevel gear 4.The outer end of above-mentioned horizontal axis 7 is by worm screw coupling 23 and described 11 coaxial connections of worm screw.
Described 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, 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 described horizontal mounting pipe 10 upper tube half via hole after, insert above the described 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 by described 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 described installation worm-wheel shaft 13 upper end portions.The underpart of described worm-wheel shaft 13 pass on described horizontal mounting pipe 10 lower tube half via hole after, insert below the described fan-catcher in the mounting hole on the horizontal journal stirrup 2a, and by 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 described 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 as Fig. 1～9, because present embodiment medium power device 5 is 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 necessary opposite.Because only in this way could guarantee under the drive of described power plant 5, described blade 1 is along circumferentially swing, and do not twist in vertical plane, 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 arrange, can be synchronously along circumferentially swing in order to guarantee each blade 1, 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, in this moment top 4 executive modules in rotation direction and following 4 executive modules of worm screw 11 rotation direction of worm screw 11 necessary opposite.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.
As 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 for detection of 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≤startup wind speed; When starting wind speed＜actual wind speed≤rated wind speed, send second control signal to power controller; When rated wind speed＜actual wind speed≤cut-out wind speed, send the 3rd control signal to power controller; When actual wind speed＞cut-out wind speed, send the 4th control signal to power controller.
This propeller pitch angle angle transducer is for detection of 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 sending 90 ° of propeller pitch angle values to this propeller pitch angle controller when receiving first control signal.This propeller pitch angle controller is controlled 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, two drive bevel gear 4 of rotation drive each driven wheel of differential 8 that is engaged with simultaneously and rotate, and then drive 7 rotations of described horizontal axis, the horizontal axis 7 of rotation drives described worm screw 11 and rotates together, the worm screw 11 of rotating drives worm gear 12 rotations, the worm gear 12 of rotation drives worm-wheel shaft 13 and rotates, final each adjusting blade 1 that drives is synchronously along circumferentially swing, thereby be 90 ° with the actual blade pitch angle θ synchronization regulation of each fan-catcher 2, and when this actual blade pitch angle θ equals 90 °, stop to regulate.
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 for detection of the blade rotating speed and this blade rotary speed information is sent to power controller; This output power detector also sends to power controller with rated power and the output power signal of this generator for detection of rated power and the output power of generator.Power controller is used for 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 when receiving the 3rd control signal.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, is no longer tired out at this and states.
Power controller is used for sending 90 ° of propeller pitch angle values to the propeller pitch angle controller when receiving the 4th control signal or stopping signal.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 to this braking device when equaling 90 ° of propeller pitch angles at this actual blade pitch angle; 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 support pipe 14, and air velocity transducer, output power detector, power controller and change radius controller etc. can arrange separately respectively, also can be installed as one with this vertical axis aerogenerator blade turning radius controlling mechanism combination.
The above only is preferred embodiment of the present invention, is not restriction with the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces 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 on each blade (1), the bottom is set with a fan-catcher (2) respectively, the back side of this fan-catcher has on two, the horizontal journal stirrup (2a) that is arranged side by side down, it is characterized in that: the inboard at described blade (1) place circle arranges Power Component, the vertical tube assembly, executive module, axial fan hub shell (3) and drive bevel gear (4), wherein axial fan hub shell (3) symmetry be located at described vertical tube assembly on, the lower end, described Power Component is set in the vertical tube assembly, this Power Component comprises power plant (5) and vertical output shaft (6), wherein two output terminals of power plant (5) are continuous with corresponding described vertical output shaft (6) respectively, this vertical output shaft be positioned at power plant (5) on, the below, 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 described drive bevel gear (4) at two inserting ends;
Go up equal level at two axial fan hub shells (3) and be provided with described executive module, the position of this executive module is corresponding one by one with described fan-catcher (2); Described executive module comprises horizontal axis (7), driven wheel of differential (8), horizontal support pipe (9), horizontal mounting pipe (10), worm screw (11) and worm gear (12), wherein the inner of horizontal support pipe (9) and described axial fan hub shell (3) are fixing, the outer end of horizontal support pipe (9) and described 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 described fan-catcher (2);
Described horizontal axis (7) by bearings in horizontal support pipe (9), the inner of horizontal axis (7) reaches in the described axial fan hub shell (3), and at the described driven wheel of differential of this inserting end suit (8), this driven wheel of differential (8) is meshed with described drive bevel gear (4), and the outer end of horizontal axis (7) and coaxial connection of described worm screw (11);
Described 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), on the worm-wheel shaft (13), after the underpart is passed via hole on described horizontal mounting pipe (10) tube wall respectively, insert in the mounting hole on the corresponding horizontal journal stirrup of described fan-catcher (2) (2a), and fan-catcher (2) can be followed worm-wheel shaft (13) and be rotated together, under the drive of described 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 described vertical axis aerogenerator blade of claim 1, it is characterized in that: described Power Component is made 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) by described retarder (14) and coupling (15) respectively.
3. according to the propeller pitch angle controlling mechanism of the described vertical axis aerogenerator blade of claim 2, it is characterized in that: described vertical tube assembly is made 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; Described power plant (5) are installed in the mounting pipe (16), two described vertical output shafts (6) then by bearings in the vertical tube (17) of correspondence.
4. according to the propeller pitch angle controlling mechanism of claim 1 or 3 described vertical axis aerogenerator blades, it is characterized in that: described axial fan hub shell (3) is rotary structure, the outer wall of this axial fan hub shell is provided with horizontal support arm (3a), the inner of described horizontal support pipe (9) is installed in this horizontal support arm (3a), and the cross section of horizontal support pipe (9) is oval.
5. according to the propeller pitch angle controlling mechanism of the described vertical axis aerogenerator blade of claim 4, it is characterized in that: the underpart of described worm-wheel shaft (13) is by 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) by flat key (18).
6. according to the propeller pitch angle controlling mechanism of the described vertical axis aerogenerator blade of claim 5, it is characterized in that: described horizontal mounting pipe (10) is formed by upper and lower semicanal butt joint, and has the via hole that passes for described worm-wheel shaft (13) on the upper and lower semicanal.
7. according to the propeller pitch angle controlling mechanism of the described vertical axis aerogenerator blade of claim 6, it is characterized in that: the number of described 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 that also comprises the described vertical axis aerogenerator blade of claim 1, air velocity transducer, the propeller pitch angle angle transducer, power controller and propeller pitch angle controller, wherein said air velocity transducer is for detection of actual wind speed and with this actual wind speed information and startup wind speed, rated wind speed, cut-out wind speed compares: send first control signal to power controller when actual wind speed≤startup wind speed, and send second control signal to power controller when starting wind speed＜actual wind speed≤rated wind speed;
Described propeller pitch angle angle transducer is for detection of the actual blade pitch angle and this actual blade pitch angle information is sent to the propeller pitch angle controller;
Described power controller is used for sending 90 ° of propeller pitch angle values to this propeller pitch angle controller when receiving first control signal, and starts 0 ° of propeller pitch angle value to give this propeller pitch angle controller when receiving second control signal;
Described 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 sends the 3rd control signal to power controller when rated wind speed＜actual wind speed≤cut-out wind speed;
Described blade speed probe is for detection of the blade rotating speed and this blade rotary speed information is sent to power controller;
Described output power detector also sends to power controller with rated power and the output power signal of this generator for detection of rated power and the output power of generator;
Described power controller is used for 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 when receiving the 3rd control signal;
Described 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 sending the 4th control signal to power controller when actual wind speed＞cut-out wind speed;
Described power controller is used for sending 90 ° of propeller pitch angle values to the propeller pitch angle controller when receiving the 4th control signal or stopping signal;
Described 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 to this braking device when equaling 90 ° of propeller pitch angles at this actual blade pitch angle;
This braking device is used for control brake shutdown when receiving this brake signal.
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| 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN102588215A CN102588215A (en) | 2012-07-18 |
| CN102588215B true CN102588215B (en) | 2013-08-21 |
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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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Cited By (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 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105545602B (en) * | 2016-01-11 | 2018-01-09 | 南通大学 | Leading edge adds the vertical axis windmill of rotating cylindrical |
| GB2561926B (en) * | 2017-07-04 | 2020-04-29 | Vertogen Ltd | Wind turbine |
| CN107781103A (en) * | 2017-11-21 | 2018-03-09 | 张广明 | Actively receive wind motor |
| CN111456900B (en) * | 2020-05-21 | 2024-06-18 | 安徽康迪纳电力科技有限责任公司 | Adjusting device for follow-up angle of vertical windmill wind blade plate |
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| US4160170A (en) * | 1978-06-15 | 1979-07-03 | United Technologies Corporation | Wind turbine generator pitch control system |
| 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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| JP4135420B2 (en) * | 2002-07-19 | 2008-08-20 | 株式会社明電舎 | Wind power generator output power smoothing control device |
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|---|---|---|---|---|
| US4160170A (en) * | 1978-06-15 | 1979-07-03 | United Technologies Corporation | Wind turbine generator pitch control system |
| 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105626349A (en) * | 2015-12-21 | 2016-06-01 | 浙江海洋学院 | Flap type vertical axis water turbine |
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| CN102588215A (en) | 2012-07-18 |
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