CN206054179U - Blade pitch device and Wind turbines - Google Patents
Blade pitch device and Wind turbines Download PDFInfo
- Publication number
- CN206054179U CN206054179U CN201621034054.0U CN201621034054U CN206054179U CN 206054179 U CN206054179 U CN 206054179U CN 201621034054 U CN201621034054 U CN 201621034054U CN 206054179 U CN206054179 U CN 206054179U
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- China
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- articulated section
- blade pitch
- torque plate
- pitch device
- pars contractilis
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a kind of blade pitch device and Wind turbines.The blade pitch device includes driving means, positioning seat and Torque plate, the driving means include fixed part and are capable of the pars contractilis of relatively described fixed part motion, the fixed part is hinged with the positioning seat, the first articulated section and the second articulated section are provided with the Torque plate, the first articulated section, the second hinge point are on different diameter lines；The pars contractilis can be removably hinged with first articulated section, and the pars contractilis can be removably hinged with second articulated section.
Description
Technical field
This utility model is related to hydraulic vane change technical field, more particularly to a kind of blade pitch device and Wind turbines.
Background technology
As Figure 1-3, traditional hydraulic jack pitch-controlled system, including pitching slewing support, 1 ＇ of change oar oil cylinder, oil cylinder seat
And 2 ＇ of Torque plate, the outer ring of pitching slewing support is fixedly connected with wheel hub, and the inner ring of Torque plate and pitching slewing support is fixed and connected
Connect, oil cylinder seat is installed on wheel hub, the positioning end and oil cylinder seat for becoming 1 ＇ of oar oil cylinder is hinged, telescopic end and Torque plate are cut with scissors by bearing pin
Connect, the piston rod of oil cylinder can driving torque plate turn clockwise, the blade in Wind turbines is connected with Torque plate, therefore, turn
The synchronization driving blade rotation of square plate is realized becoming oar.
As shown in figure 1, when 1 ＇ of change oar oil cylinder is in initial position, the extension elongation of cylinder piston rod is zero, now oil cylinder
Acting force arm be L1；As shown in Fig. 2 the piston rod for becoming 1 ＇ of oar oil cylinder stretches out, 2 ＇ of Torque plate is under the driving of cylinder piston rod
Dextrorotation turn 90 degrees, i.e. 90 ° of the pitch angle α ≈ of Torque plate, and now the acting force arm of oil cylinder is L2, from figure, pitch
When angle is between 0 ° -90 °, the acting force arm of oil cylinder is more than acting force arm during initial position, and blade is capable of achieving to become oar；As schemed
Shown in 3, when the axis for becoming 1 ＇ of oar oil cylinder is overlapped with the diameter line of 2 ＇ of Torque plate, the acting force arm of oil cylinder is zero, i.e. this position
The dead-centre position for becoming oar oil cylinder is set to, now between 90 ° -180 °, Torque plate will at this position for the propeller pitch angle of Torque plate
Cannot move, therefore, when actually used, cause Torque plate move to avoid reaching dead-centre position, only make Torque plate
Propeller pitch angle changes in the range of 0 ° -90 °, causes fan blade only can carry out change oar in same scope.
Utility model content
The purpose of this utility model is to provide a kind of blade pitch device, can only make blower fan leaf to solve existing blade pitch device
Piece becomes the technical problem of oar in less angular range.
A kind of blade pitch device, including driving means, positioning seat and Torque plate, the driving means include fixed part and can
With respect to the pars contractilis of fixed part motion, the fixed part is hinged with the positioning seat；First is provided with the Torque plate
Articulated section and the second articulated section, the first articulated section, the second hinge point are on different diameter lines；The pars contractilis can be with institute
State the first articulated section to be removably hinged, and the pars contractilis can be removably hinged with second articulated section.
Further, the center of first articulated section and the line of the center of rotation of the Torque plate are the first line,
The center of second articulated section and the connection of the center of rotation of the Torque plate are the second line, first line with it is described
Second line is in 45 ° of -135 ° of settings.
Further, the angle between first line and second line is 90 °.
Further, the angle between first line and second line is 95.5 °.
Further, first articulated section includes that the thickness direction along the Torque plate runs through the installing of the Torque plate
Hole and in being installed in the installation hole and the connector that can slide along the axis of the installation hole；
The end of the pars contractilis offers connecting hole, and the connector can be fed through the installation hole and described successively
Connecting hole is so that the pars contractilis is connected with the Torque plate.
Further, the 3rd articulated section is additionally provided with the Torque plate, along the circumference of the Torque plate first hinge
Socket part, second articulated section and the 3rd articulated section interval setting successively, and first articulated section, second hinge
Socket part and the 3rd hinge point are on different diameter lines；
The pars contractilis can be removably hinged with the 3rd articulated section.
Further, the 3rd articulated section is for multiple, first articulated section, second articulated section and multiple described
3rd articulated section along the circumferential direction interval setting successively, two hinge points of arbitrary neighborhood are on different diameter lines.
Further, first articulated section and second articulated section are arranged on same circumference.
The blade pitch device provided using this utility model, need to first make the Torque plate of the blade pitch device and the root of fan blade
Connection, and it is connected the Torque plate and the inner ring of the pitching slewing support of blade pitch device, outer ring and the wheel of the pitching slewing support
Hub connects.During concrete running, the pars contractilis and the first articulated section on Torque plate for making driving means first is removably hinged, and opens
Dynamic driving means, then the extending action of its pars contractilis set angle is rotated by first articulated section driving torque plate, work as torque
After plate is rotated in place, being hinged between pars contractilis and the first articulated section is removed, and the pars contractilis is contracted in fixed part；Wait to stretch
Contracting portion is contracted in fixed part, and pars contractilis returns initial position again, now makes pars contractilis and the second articulated section again removably
Be hinged, be again started up driving means, then the extending action of pars contractilis by second articulated section driving torque plate in the same direction
Continue rotation set angle, therefore, the set angle of Torque plate rotatable twice in the same direction, and then fan blade is along same
Direction rotates the set angle of twice；Also, in the process, the acting force arm of pars contractilis is consistently greater than zero, be not in dead
The anglec of rotation of point position, Torque plate and fan blade is unrestricted, and the anglec of rotation of fan blade can be selected according to the actual requirements
Take arbitrary size.Compared to prior art, the anglec of rotation of fan blade is no longer limited by blade pitch device itself, its rotation
Angle is arbitrarily adjustable, i.e., fan blade can become oar in larger angular range, overcome the technical problem existing for prior art.
Another object of the present utility model is a kind of Wind turbines, and the Wind turbines include fan blade and as mentioned above
Blade pitch device, the Torque plate of the blade pitch device is connected with the root of the fan blade.
Further, also including generating set main body, the blade pitch device and the fan blade are three, three changes
Paddle mechanism is installed in the inside of the generating set main body, and three fan blades are uniformly set along the periphery of the generating set main body
Put；The Torque plate of three blade pitch devices is connected one to one with the root of three fan blades.
Beneficial effect of the above-mentioned Wind turbines compared to prior art, is same as the beneficial effect of above-mentioned blade pitch device, herein
Repeat no more.
Description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing further understanding to of the present utility model, and this practicality is new
The schematic description and description of type is used to explain this utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is the schematic diagram one of the blade pitch device in correlation technique；
Fig. 2 is the schematic diagram two of the blade pitch device in correlation technique；
Fig. 3 is the schematic diagram three of the blade pitch device in correlation technique；
Fig. 4 is the schematic diagram one of the blade pitch device according to this utility model embodiment；
Fig. 5 is the schematic diagram two of the blade pitch device according to this utility model embodiment；
Fig. 6 is the schematic diagram three of the blade pitch device according to this utility model embodiment；
Fig. 7 is the schematic diagram four of the blade pitch device according to this utility model embodiment.
In figure：
1 ＇-change oar oil cylinder, 2 ＇-Torque plate, α-propeller pitch angle；
1- driving means, 2- Torque plates, 3- positioning seats, 4- pitching slewing supports, 5- wheel hubs；
11- pars contractilis, 12- fixed parts；
The first articulated sections of 21-, the second articulated sections of 22-.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in this utility model can
To be mutually combined.Below with reference to the accompanying drawings and in conjunction with the embodiments describing this utility model in detail.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in this utility model.
Refer to Fig. 4 to Fig. 7, the blade pitch device that this utility model embodiment is provided, including driving means 1, positioning seat 3 and
Torque plate 2, the driving means 1 include fixed part 12 and are capable of the pars contractilis 11 of the relatively described motion of fixed part 12, described solid
Determine portion 12 to be hinged with the positioning seat 3；The first articulated section 21 and the second articulated section 22, the first hinge are provided with the Torque plate 2
Socket part 21, the second articulated section 22 are located on different diameter lines；The pars contractilis 11 can be removable with first articulated section 21
It is hinged with unloading, and the pars contractilis 11 can be removably hinged with second articulated section 22.
The blade pitch device provided using this utility model, need to first make the Torque plate 2 of the blade pitch device and the root of fan blade
Portion connects, and is connected the Torque plate 2 and the inner ring of the pitching slewing support 4 of blade pitch device, the outer ring of the pitching slewing support 4
It is connected with wheel hub 5.It is concrete to refer to Fig. 4 and Fig. 5 when operating, the on the pars contractilis 11 of driving means and Torque plate 2 is made first
One articulated section 21 is removably hinged, and starts driving means 1, then the extending action of its pars contractilis 11 passes through first articulated section 21
Driving torque plate 2 rotates set angle, after Torque plate 2 is rotated in place, removes between pars contractilis 11 and the first articulated section 21
It is hinged, and the pars contractilis 11 is contracted in fixed part 12；Please continue to refer to Fig. 6 and Fig. 7, treat that pars contractilis 11 is contracted to fixed part
In 12, pars contractilis 11 returns initial position again, pars contractilis 11 is removably hinged with the second articulated section 22 again, again
Start driving means 1, then the extending action of pars contractilis 11 is continued in the same direction by the 22 driving torque plate 2 of the second articulated section
Rotation set angle, therefore, the set angle of the rotatable twice in the same direction of Torque plate 2, and then fan blade is along same side
To the set angle of rotation twice；Also, in the process, the acting force arm of pars contractilis is consistently greater than zero, it is not in dead point
The anglec of rotation of position, Torque plate and fan blade is unrestricted, and the anglec of rotation of fan blade can be chosen according to the actual requirements
Arbitrary size.Compared to prior art, the anglec of rotation of fan blade is no longer limited by blade pitch device itself, its anglec of rotation
Degree is arbitrarily adjustable, i.e., fan blade can become oar in larger angular range, overcome the technical problem existing for prior art.
Further, the center of first articulated section and the line of the center of rotation of the Torque plate are the first line,
The center of second articulated section and the connection of the center of rotation of the Torque plate are the second line, first line with it is described
In 45 ° of -135 ° of settings, in 45 ° -135 ° of angular range, the acting force arm of the pars contractilis of driving means is suitable to second line
The job requirements of the blade pitch device, acting force arm will not be too small, also, in the angular range, the first line and the second line
Between angle it is bigger, then the change propeller angle of fan blade is bigger, and specifically, the angle between the first line and the second line can
Chosen according to actual needs.
Preferably, the angle between first line and second line is 90 ° or 95.5 °, now, drives dress
The acting force arm of the pars contractilis put is larger, and driving torque plate is relatively easy to, also, now the change propeller angle of blade can reach 180
Degree is slightly larger than 180 degree, and the angle tends to actually required change propeller angle.
For being directed to the concrete structure of articulated section, first articulated section includes passing through along the thickness direction of the Torque plate
In wearing the installation hole of the Torque plate and being installed in the installation hole and can along the installation hole axis slide connector；
The end of the pars contractilis offers connecting hole, the connector can be fed through the installation hole and the connecting hole successively with
The pars contractilis is made to be connected with the Torque plate.During use, can by manually make bearing pin along installation hole slide, with reach dismounting or
The purpose of connection pars contractilis and Torque plate.The simple structure of the articulated section, facilitates implementation, and makes the pitch process of blade more just
It is prompt.
Further, the 3rd articulated section is additionally provided with the Torque plate, along the circumference of the Torque plate first hinge
Socket part, second articulated section and the 3rd articulated section interval setting successively, and first articulated section, second hinge
Socket part and the 3rd hinge point are on different diameter lines；The pars contractilis can be with the 3rd articulated section removably
It is hinged.
During concrete running, the flexible of driving means is removably hinged with the first articulated section on Torque plate first, open
Dynamic driving means, then the extending action of its pars contractilis set angle is rotated by first articulated section driving torque plate, work as torque
After plate is rotated in place, being hinged between pars contractilis and the first articulated section is removed, and the pars contractilis is contracted in fixed part；Wait to stretch
Contracting portion 11 is contracted in fixed part, and pars contractilis returns initial position again, now makes flexible and the second articulated section again removably
Be hinged, be again started up driving means, then the extending action of pars contractilis by this second be hinged 2 driving torque plates in the same direction after
Continuous rotation set angle, after Torque plate is rotated in place, removes being hinged between pars contractilis and the second articulated section, and makes this stretch
Portion is contracted in fixed part；Treat that pars contractilis is contracted in fixed part, pars contractilis returns initial position again, now make again it is flexible with
3rd articulated section is removably hinged, and is again started up driving means, then the extending action of pars contractilis is driven by the 3rd articulated section
Dynamic torque plate continues to rotate in the same direction set angle, therefore, the set angle of Torque plate rotatable three times in the same direction,
And then fan blade rotates the set angle of three times in the same direction；The anglec of rotation of Torque plate and fan blade is made further not
It is restricted, the anglec of rotation of fan blade can choose arbitrary size according to the actual requirements.
3rd articulated section is multiple, and first articulated section, second articulated section and the multiple described 3rd are hinged
Portion's along the circumferential direction interval setting successively, two hinge points of arbitrary neighborhood on different diameter lines, two neighboring hinge
Angle between socket part identical can be differed.
Based on above-mentioned blade pitch device, it is preferable that in the present embodiment, the first articulated section and the second articulated section are arranged on same circle
Zhou Shang, thus, after the pars contractilis of driving means is rotated in place by the first articulated section driving torque plate, the pars contractilis can be by original
Track returns initial position again, and driving means are same as driving dress by running orbit during the first articulated section driving torque plate
Put by running orbit during the second articulated section driving torque plate, i.e., the driving parameter phase of driving means during driving twice
Together, so simplify driving means control flow；Also, as the track of driving twice of driving means is identical, whole change can be made
The pitch process of paddle mechanism is more stable.
Another object of the present utility model is a kind of Wind turbines, and the Wind turbines include fan blade and as mentioned above
Blade pitch device, the Torque plate of the blade pitch device is connected with the root of the fan blade.
Further, also including generating set main body, the blade pitch device and the fan blade are three, three changes
Paddle mechanism is installed in the inside of the generating set main body, and three fan blades are uniformly set along the periphery of the generating set main body
Put；The Torque plate of three blade pitch devices is connected one to one with the root of three fan blades, so that wind-powered electricity generation
Three blades of unit are realized becoming oar simultaneously.
Beneficial effect of the above-mentioned Wind turbines compared to prior art, is same as the beneficial effect of above-mentioned blade pitch device, herein
Repeat no more.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in this utility model
Protection domain within.
Claims (10)
1. a kind of blade pitch device, including driving means (1), positioning seat (3) and Torque plate (2), the driving means (1) are including solid
Determine portion (12) and being capable of the pars contractilis (11) that moves of relatively described fixed part (12), the fixed part (12) and the positioning seat
(3) it is hinged, it is characterised in that
The first articulated section (21) and the second articulated section (22), first articulated section (21), institute are provided with the Torque plate (2)
The second articulated section (22) is stated on different diameter lines；
The pars contractilis (11) can be removably hinged with first articulated section (21), and the pars contractilis (11) can
Removably it is hinged with second articulated section (22).
2. blade pitch device according to claim 1, it is characterised in that the center of first articulated section (21) with described turn
The line of the center of rotation of square plate (2) is the first line, the center of second articulated section (22) and turning for the Torque plate (2)
The connection of the disorder of internal organs heart is the second line, and first line is with second line in 45 ° of -135 ° of settings.
3. blade pitch device according to claim 2, it is characterised in that between first line and second line
Angle is 90 °.
4. blade pitch device according to claim 2, it is characterised in that between first line and second line
Angle is 95.5 °.
5. blade pitch device according to claim 1, it is characterised in that first articulated section (21) is included along the torque
The thickness direction of plate (2) is through the installation hole of the Torque plate (2) and in being installed in the installation hole and can be along the installing
The connector that the axis in hole slides；
The end of the pars contractilis (11) offers connecting hole, and the connector can be fed through the installation hole and described successively
Connecting hole is so that the pars contractilis (11) is connected with the Torque plate (2).
6. blade pitch device according to claim 1, it is characterised in that be additionally provided with the 3rd on the Torque plate (2) and be hinged
Portion, along the circumference of the Torque plate (2) first articulated section (21), second articulated section (22) and the 3rd articulated section
Interval setting, and first articulated section (21) successively, second articulated section (22) and the 3rd hinge point be not in
On same diameter line；
The pars contractilis (11) can be removably hinged with the 3rd articulated section.
7. blade pitch device according to claim 6, it is characterised in that the 3rd articulated section is multiple, first hinge
Socket part (21), second articulated section (22) and multiple 3rd articulated sections along the circumferential direction interval setting successively, any phase
Adjacent two hinge points are on different diameter lines.
8. blade pitch device according to claim 1, it is characterised in that first articulated section (21) and described second is hinged
Portion (22) is arranged on same circumference.
9. a kind of Wind turbines, including fan blade, it is characterised in that also include the change as described in any one of claim 1-8
Paddle mechanism, the Torque plate of the blade pitch device are connected with the root of the fan blade.
10. Wind turbines according to claim 9, it is characterised in that also including generating set main body, the blade pitch device and institute
State fan blade and be three, three blade pitch devices are installed in the inside of the generating set main body, three blower fan leaves
Piece is uniformly arranged along the periphery of the generating set main body；
The Torque plate (2) of three blade pitch devices is connected one to one with the root of three fan blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621034054.0U CN206054179U (en) | 2016-08-31 | 2016-08-31 | Blade pitch device and Wind turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621034054.0U CN206054179U (en) | 2016-08-31 | 2016-08-31 | Blade pitch device and Wind turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054179U true CN206054179U (en) | 2017-03-29 |
Family
ID=58374933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621034054.0U Active CN206054179U (en) | 2016-08-31 | 2016-08-31 | Blade pitch device and Wind turbines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054179U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019007105A1 (en) * | 2017-07-06 | 2019-01-10 | 北京金风科创风电设备有限公司 | Wind turbine blade pitch variation device, pitch variation method, pitch variation control device, and wind turbine |
| US11359602B2 (en) * | 2017-07-06 | 2022-06-14 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Pitch varying device, pitch varying method and pitch varying control device for wind turbine blade and wind turbine |
-
2016
- 2016-08-31 CN CN201621034054.0U patent/CN206054179U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019007105A1 (en) * | 2017-07-06 | 2019-01-10 | 北京金风科创风电设备有限公司 | Wind turbine blade pitch variation device, pitch variation method, pitch variation control device, and wind turbine |
| US11359602B2 (en) * | 2017-07-06 | 2022-06-14 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Pitch varying device, pitch varying method and pitch varying control device for wind turbine blade and wind turbine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Sany Industrial Park, Beiqing Road, Changping District, Beijing Patentee after: Sany Heavy Energy Co.,Ltd. Address before: 102200 Sany Industrial Park, Beiqing Road, Changping District, Beijing Patentee before: SANY HEAVY ENERGY Co.,Ltd. Address after: 102200 Sany Industrial Park, Beiqing Road, Changping District, Beijing Patentee after: SANY HEAVY ENERGY Co.,Ltd. Address before: 102200 Sany Industrial Park, Beiqing Road, Changping District, Beijing Patentee before: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |