CN207583555U - The vane propeller-changing device and wind power generating set of wind power generating set - Google Patents
The vane propeller-changing device and wind power generating set of wind power generating set Download PDFInfo
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- CN207583555U CN207583555U CN201721422460.9U CN201721422460U CN207583555U CN 207583555 U CN207583555 U CN 207583555U CN 201721422460 U CN201721422460 U CN 201721422460U CN 207583555 U CN207583555 U CN 207583555U
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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 provides a kind of vane propeller-changing device and wind power generating set of wind power generating set.Vane propeller-changing device includes：Rotary part is rotated with blade synchronization；First stroke pushing unit, including the first fluid pressure type driving component, the first pushing mechanism and the first connecting portion part, the first pushing mechanism is articulated and connected by the first connecting portion part and rotary part, and rotary part is pushed to be rotated in the range of the first operating angle；And the second stroke pushing unit, including the second fluid pressure type driving component, the second pushing mechanism and second connecting portion part, second pushing mechanism is articulated and connected by second connecting portion part and rotary part, rotary part is pushed to be rotated in the range of the second operating angle, and the first operating angle range is less than the second operating angle range.Thereby, it is possible to be directed to the actual condition of existing vane change device, pitch control is carried out to blade by stages, so as to fulfill the use reliability of vane change device is improved, increases the purpose of the service life of vane change device.
Description
Technical field
The utility model is related to technical field of wind power generation more particularly to a kind of vane propeller-changing devices of wind power generating set
And wind power generating set.
Background technology
The rotor of wind power generating set and the output axis connection of impeller, the kinetic energy of wind is converted to rotation by blade
Then the mechanical energy of rotation is converted to electric energy by mechanical energy by rotor and stator.In order to preferably capture wind energy, need to leaf
Piece carries out variable pitch to control the power output of generator, and therefore, each blade is installed to wheel hub by pitch variable bearings, to pass through
Pitch variable bearings allow blade relative to the hub rotation.Meanwhile vane change device is configured in impeller, it is driven by vane change device
Blade is rotated around the axis of pitch variable bearings.
The practical working situation of vane change device is more special, has apparent property stage by stage, is run in wind power generating set
In the process, the working time of vane change device about 70% is in low-angle variable pitch, and to the required precision of pitch drive mechanism compared with
Height, the movement travel of pitch drive mechanism are shorter；Remaining 30% working time is in wide-angle variable pitch, needs pitch drive machine
The fast response time of structure, movement travel are longer.
Current vane change device mainly includes gear-driving, tooth form belt and fluid pressure type.But existing variable pitch dress
Only there is a set of pitch drive mechanism, so needing to complete above-mentioned two work rank simultaneously by a set of pitch drive mechanism in putting
Section, that is, the purpose that a set of pitch drive mechanism is needed to realize high-precision, high thrust and quick response simultaneously, are not only realized
Difficult and manufacture cost is higher.Although the vane change device technology of gear driving is more mature, cost is higher, and variable pitch
Output gear repeats the several teeth of meshing wear in low-angle variable pitch for a long time with pitch variable bearings, be easy to cause in pitch variable bearings
The fraction excessive wear of tooth even fatigue failure, causes breaking off gear teeth to damage, not only reduces the service life of gear, simultaneously
Reduce its reliability.Therefore, the use reliability for leading to vane change device is relatively low, and can increase the maintenance of wind power generating set
Cost.
Therefore, there is an urgent need for a kind of vane propeller-changing devices and wind power generating set of new wind power generating set.
Utility model content
Embodiment according to the present utility model provides a kind of vane propeller-changing device of wind power generating set and wind-force hair
Motor group can be directed to the actual condition of existing vane change device, pitch control be carried out to blade by stages, so as to fulfill raising
The use reliability of vane change device increases the purpose of the service life of vane change device.
According to the one side of the utility model embodiment, a kind of vane propeller-changing device of wind power generating set is provided,
The blade of wind power generating set is rotatably installed on wheel hub by pitch variable bearings, and vane propeller-changing device includes：Rotary part, with
Blade connects, and rotary part is rotated with blade synchronization；First stroke pushing unit, including the first fluid pressure type driving component, can
Driven what is performed the first pushing mechanism of straight reciprocating motion and connect with the first pushing mechanism by the first fluid pressure type driving component
The first connecting portion part, the first fluid pressure type driving component are connect with hub hinged, the first pushing mechanism by the first connecting portion part with
Rotary part is articulated and connected, and rotary part is pushed to be rotated in the range of the first operating angle；And the second stroke pushing unit, packet
It includes the second fluid pressure type driving component, the second pushing part for performing straight reciprocating motion can be driven by the second fluid pressure type driving component
Part and the second connecting portion part being connect with the second pushing mechanism, the second fluid pressure type driving component are connect with hub hinged, and second pushes away
Dynamic component is articulated and connected by second connecting portion part and rotary part, and rotary part is pushed to turn in the range of the second operating angle
It is dynamic, and the first operating angle range is less than the second operating angle range.
According to the one side of the utility model embodiment, rotary part has arc connecting portion, arc connecting portion arrangement
In in the plane vertical with the rotation axis of pitch variable bearings and centered on rotation axis, the first connecting portion part and arc connecting portion
Connection, and the first pushing mechanism is articulated and connected with the first connecting portion part.
According to the one side of the utility model embodiment, the first connecting portion part is used and is detachably connect with arc
Portion connects, so that the first connecting portion part and arc connecting portion can switch between connection status and discrete state.
According to the one side of the utility model embodiment, vane propeller-changing device further includes control unit, control unit with
The first connecting portion part connects, for the first connecting portion part and arc connecting portion to be controlled to switch to connection status or discrete state.
According to the one side of the utility model embodiment, second connecting portion part is used and is detachably connect with arc
Portion connects, so that second connecting portion part and arc connecting portion can switch between connection status and discrete state.
According to the one side of the utility model embodiment, control unit is also connect with second connecting portion part, for controlling
Second connecting portion part switches to connection status or discrete state with arc connecting portion.
According to the one side of the utility model embodiment, the second pushing mechanism is articulated and connected with second connecting portion part, and
And second connecting portion part is fixedly connected with arc connecting portion；Alternatively, the second pushing mechanism is fixedly connected with second connecting portion part, and
And second connecting portion part is articulated and connected with arc connecting portion.
According to the one side of the utility model embodiment, the outer ring of pitch variable bearings is fixedly connected with blade, rotary part
It is fixedly connected with outer ring；Alternatively, the inner ring of pitch variable bearings is fixedly connected with blade, rotary part is fixedly connected with inner ring.
According to the one side of the utility model embodiment, the first fluid pressure type driving component and/or the second fluid pressure type driving
Component is telescoping hydraulic cylinder or swivel hydraulic cylinder.
According to the other side of the utility model embodiment, a kind of wind power generating set is additionally provided, including above-mentioned
Vane propeller-changing device.
To sum up, the vane propeller-changing device and wind power generating set of the wind power generating set of the utility model embodiment, if
The rotary part being fixedly connected with blade is put, is rotated, and pass through and hingedly connect with wheel hub and rotary part respectively with band movable vane piece
The the first stroke pushing unit connect pushes rotary part band movable vane piece to be rotated in the range of the first operating angle, and the first row
In journey pushing unit power source is provided using the first fluid pressure type driving component；And by being hinged respectively with wheel hub and rotary part
Second stroke pushing unit of connection pushes rotary part band movable vane piece to be rotated in the range of the second operating angle, and second
In stroke pushing unit power source is provided using the second fluid pressure type driving component.And the first operating angle range is less than the second work
Make angular range.The vane propeller-changing device of the utility model embodiment is by segmenting variable pitch operating mode as a result, for different operating modes
Using two sets of different driving mechanisms by the type of drive of segmented with movable vane piece the variable pitch in the range of different operating angles,
Pitch drive mechanism is segmented, rationally using the characteristics of combination of the first fluid pressure type driving component and the second fluid pressure type driving component
, can be in different phase with practical working condition, the change of high position precision when meeting driving blade low-angle variable pitch respectively
The variable pitch requirement of high thrust when paddle requirement and driving blade wide-angle variable pitch.Therefore it can extend the use of pitch variable bearings
Service life reduces the cost of vane propeller-changing device, so as to reduce the cost of wind power generating set.
Description of the drawings
This practicality may be better understood from the description below in conjunction with the accompanying drawings to specific embodiment of the present utility model
It is novel, wherein：
By reading the detailed description made referring to the drawings to non-limiting example, other spies of the utility model
Sign, objects and advantages will become more apparent upon, wherein, the same or similar reference numeral represents the same or similar feature.
Fig. 1 is that the structure of the vane propeller-changing device of the wind power generating set provided according to the utility model one embodiment is shown
It is intended to.
Wherein：10- wheel hubs；20- pitch variable bearings；21- outer rings；22- inner rings；30- the first stroke pushing units；31- first
Fluid pressure type driving component；The first pushing mechanism of 32-；33- the first connecting portion parts；40- the second stroke pushing units；The second liquid of 41-
Pressure type driving part；The second pushing mechanism of 42-；43- second connecting portion parts；50- rotary parts；51- arc connecting portions.
Specific embodiment
The feature and exemplary embodiment of the various aspects of the utility model is described more fully below.It is retouched in detail in following
In stating, it is proposed that many details, in order to provide the comprehensive understanding to the utility model.But for people in the art
It will be apparent that the utility model can be implemented in the case of some details in not needing to these details for member.
Below the description of embodiment is used for the purpose of providing to the more preferable of the utility model by showing the example of the utility model
Understanding.In the the accompanying drawings and the following description, at least part of known features and technology are not shown, to avoid to this reality
Unnecessary obscure is caused with novel；Also, for clarity, it may be exaggerated the size of part-structure.It is identical attached in figure
Icon note represents same or similar structure, thus will omit their detailed description.In addition, feature described below,
Structure or characteristic can be in any suitable manner incorporated in one or more embodiments.
The noun of locality of middle appearance described below is the direction shown in figure, is not the vane propeller-changing to the utility model
The concrete structure of device is defined.In the description of the present invention, it should also be noted that, unless otherwise specific regulation
And restriction, term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or removable
It unloads connection or is integrally connected；It can be directly connected, can also be indirectly connected.For those of ordinary skill in the art
Speech, visual concrete condition understand concrete meaning of the above-mentioned term in the utility model.
The vane propeller-changing device that the utility model embodiment provides works as wind for being installed in the impeller of wind power generating set
Speed or wind direction be when changing, vane propeller-changing device can driving blade perform variable pitch, make blade feathering or keep certain
The angle of attack, so as to which wind power generating set be made to be in best working condition, ensure the generated energy of wind power generating set.It is sent out in wind-force
In the operational process of motor group, the vane propeller-changing device of the utility model embodiment by being finely divided to pitch drive mechanism,
Blade is driven using different pitch drive mechanisms in the different variable pitch stages, in the low-angle variable pitch stage, ensure compared with
High precision and the demand of reflection sensitivity；And in the wide-angle variable pitch stage, meets the needs of big stroke, high thrust.Thus
It reduces the cost of vane propeller-changing device, improve the variable pitch precision and reliability of wind power generating set.
The utility model in order to better understand, with reference to Fig. 1 according to the wind-driven generator of the utility model embodiment
The vane propeller-changing device of group illustrates.
Fig. 1 is that the structure of the vane propeller-changing device of the wind power generating set provided according to the utility model one embodiment is shown
It is intended to.The situation for removing the blade in impeller is shown in FIG. 1, that is to say, that wheel hub 10 and installation are merely illustrated in Fig. 1
In the pitch variable bearings 20 on wheel hub.In following embodiment, blade is become there are three for blade by wind power generating set tool
Paddle device illustrates.
One embodiment according to the present utility model, vane propeller-changing device include：First stroke pushing unit 30, the second row
Journey pushing unit 40 and rotary part 50.More specifically, pitch variable bearings 20 include outer ring 21 and inner ring 22, in one embodiment
In, illustratively, outer ring 21 is fixedly connected with wheel hub 10, and inner ring 22 is fixedly connected with blade, to be permitted by pitch variable bearings 20
Perhaps blade relativeatoeterahub 10 rotates.Rotary part 50 is then fixedly connected with inner ring 22, and vane change device is according to the different variable pitches of blade
Stage sets the first operating angle range and the second operating angle range, and the first operating angle range is less than the second work
Angular range.
First stroke pushing unit 30 is used as power source using the first fluid pressure type driving component 31 of low thrust, so as to drive
Rotary part 50 is rotated with movable vane piece in the range of the first operating angle；Second stroke pushing unit 40 is using the second of high thrust
Fluid pressure type driving component 41 is used as power source, so as to which rotary part 50 be driven to turn in the range of the second operating angle with movable vane piece
It is dynamic, so as to perform complete variable pitch with movable vane piece.
Since the vane propeller-changing device of the utility model embodiment is for different operating modes, using the first stroke pushing unit
30 and the different driving mechanism of 40 liang of the second stroke pushing unit set by the type of drive of segmented with movable vane piece different
Variable pitch in the range of operating angle, so meeting the variable pitch requirement of different phase using two sets of driving mechanisms, with the practical work of matching
Condition so as to extend the service life of pitch variable bearings, reduces the cost of vane propeller-changing device.And by setting this practicality new
The vane propeller-changing device of type embodiment improves the variable pitch performance of wind power generating set, so as to ensure wind power generating set
Generated energy.
Specifically, it as shown in Figure 1, rotary part 50 is in the form of annular discs, is connect with the inner ring 22 of pitch variable bearings 20 with blade, and
For outer ring 21 is connect with wheel hub 10, then rotary part 50 is fixedly connected with inner ring 22.Certain the utility model embodiment for
Rotary part 50 and the specific connection mode of inner ring 22 are not limited, such as rotary part 50 may be mounted in inner ring 22
At empty part, edge is connected to the internal face of inner ring 22, and illustratively, rotary part 50 can be configured as and pitch variable bearings
20 rotation axis is vertical.
In addition, when the outer ring of pitch variable bearings 20 21 is connect with blade, and when inner ring 22 is connect with wheel hub 10, rotary part 50
Then it is fixedly connected with outer ring 21.Certainly, in other alternative embodiments, rotary part 50 can also directly be connect with blade,
Such as rotary part 50 can be located at the junction of blade and inner ring 22, when being connected by screw bolts blade and inner ring 22
Rotary part 50 can be fixed on blade together.
In order to be connect with two stroke pushing mechanisms, rotary part 50 further includes arc connecting portion 51, arc connecting portion 51
It is arranged on the end face towards blade of rotary part 50, so arc connecting portion 51 is located at the rotation axis with pitch variable bearings 20
In vertical plane, and arc connecting portion 51 is arranged around the rotation axis.Certainly, arc connecting portion 51 can be it is round,
The part (as long as i.e. track have circular arc portion) of the track of ellipse, more than circle or oval track
Center is preferably the axis of pitch variable bearings.
Embodiment according to the present utility model, the first stroke pushing unit 30 are connect with rotary part 50, are revolved for pushing
Rotation member 50 (angle beta of diagram) in the range of the first operating angle rotates.Specifically, in the present embodiment, the first stroke pushes
Unit 30 includes the first fluid pressure type driving component 31, the first pushing mechanism 32 and the first connecting portion part 33.Illustratively, work as rotation
Component 50 is rotated with movable vane piece in the range of the first operating angle, is referred to that blade is in wind speed near declared working condition and is carried out variable pitch
Fine tuning, that is to say, that the first operating angle range of blade is smaller, such as the first operating angle may range from 0.1 ° to 3 °.
The rise of first fluid pressure type driving component 31 is smaller, and is articulated and connected with wheel hub 10, for example, the first fluid pressure type drives
Pin shaft structure articulated connection may be used between dynamic component 31 and wheel hub 10.Certainly, the first fluid pressure type driving component 31 can be with
Wheel hub 10 is directly connected to or other support constructions with being set on wheel hub 10 are connect.Embodiment according to the present utility model,
First pushing mechanism 32 is used by the first connecting portion part 33 and is detachably connect with arc connecting portion 51, so that first connects
Relay part 33 and arc connecting portion 51 can switch between connection status and discrete state.A reality according to the present utility model
Example is applied, the first connecting portion part 33 is fixedly connected with arc connecting portion 51, and the first pushing mechanism 32 and the first connecting portion part 33
Articulated connection, so as to which the first pushing mechanism 32 be made to realize articulated connection in the purpose of rotary part 50.
Illustratively, the first connecting portion part 33 is clamp structure, and there are two the clamping limb being oppositely arranged, energy for hold assembly tool
Arc connecting portion 51 is enough clamped, so as to form a fixed connection with arc connecting portion 51, and the first pushing mechanism 32 is connect with first
It can also be articulated and connected between component 33 by pin shaft structure, enable the first connecting portion part 33 relative to the first pushing mechanism 32
Around the axis pin, (i.e. the plane parallel with rotary part 50) rotates in the plane vertical with the rotation axis of pitch variable bearings 20.
As an optional embodiment of the utility model, vane propeller-changing device can also include controller, controller
It is connect with the first connecting portion part 33, shape is connect the first connecting portion part 33 to be controlled to be switched to arc connecting portion 51 by controller
State either discrete state.Illustratively, at least one clamping limb of hold assembly can be controlled relatively another by controller
A clamping limb movement so as to change the size of the clamp port of hold assembly, makes the first connecting portion part 33 be connect with arc
Portion 51 is allowed hand over to connection status.And variable pitch is performed by 30 driving blade of the first stroke pushing unit.And when blade rotates
After the angle specified, you can the first connecting portion part 33 and arc connecting portion 51 are switched to by discrete state by controller, so as to
When not needing to using the first stroke 30 driving blade of pushing unit, the first stroke pushing unit 30 is at stopping turning shape
State, that is to say, that the first stroke pushing unit 30 can be configured be adapted with the first operating angle range it is smaller
Rise so cost can be saved, and improves the use reliability of vane propeller-changing device.
Illustratively, the first fluid pressure type driving component 31 is telescoping hydraulic cylinder, then the first pushing mechanism 32 contracts for piston
Bar performs straight reciprocating motion from there through telescopic hydraulic cylinder driving piston rod；Alternatively, the first fluid pressure type driving component 31 is rotation
Rotary hydraulic cylinder, the first stroke pushing unit 30 further include the leading screw and and leading screw being connect with the first fluid pressure type driving component 31
Nut of the transmission cooperation can be moved along leading screw, at this point, the first pushing mechanism 32 is then the push rod being connect with nut.Thus lead to
It crosses swivel hydraulic cylinder driving push rod and performs straight reciprocating motion.
Since the first fluid pressure type driving component 31 in the first stroke pushing unit 30 is articulated and connected in wheel hub 10, and the
One pushing mechanism 32 is articulated and connected by the first connecting portion part 33 in arc connecting portion 51, so when the first connecting portion part 33 clamps
At the arc connecting portion 51 of rotary part 50, the first pushing mechanism 32 by the first fluid pressure type driving component 31 driving force to
During outer extension, it can push rotary part 50 that inner ring 22 is driven to be rotated relative to outer ring 21, i.e. 30 energy of the first stroke pushing unit
Enough angular movements that the linear driving force that first fluid pressure type driving component 31 provides is converted into rotary part 50.It is that is, logical
It crosses the first stroke pushing unit 30 and can push and become in the range of the first operating angle with the blade that rotary part 50 is connect
Paddle.Can pushing away for the first stroke pushing unit 30 be formulated based on the first operating angle range for performing variable pitch action needs as a result,
Dynamic stroke.
Due to the first pushing mechanism 32 directly being driven to drive by the way of hydraulic-driven in the first stroke pushing unit 30
Rotary part 50 rotates, and the fluid pressure type driving mechanism of small rise in itself have higher reaction sensitivity, fast response time and
Accurately the advantages of implementation capacity, while convenient for control, so being suitble to small rise, high-precision driving work.And optional
In embodiment, the first stroke pushing unit 30 can also be controlled using servo-drive system, thus, it is possible to further promote
The positioning accuracy of one fluid pressure type driving component 31, and then further promote the variable pitch precision of the first stroke pushing unit 30.Therefore
First stroke pushing unit 30 is suitable for being in the variable pitch fine tuning near declared working condition in wind speed.In addition, due to fluid pressure type driving
The structure of component is simple, compact, so relative to other driving mechanisms, be more convenient for installation and the operation and maintenance in later stage.
Embodiment according to the present utility model, the second stroke pushing unit 40 are connect with rotary part 50, are revolved for pushing
Rotation member 50 (angle α of diagram) in the range of the second operating angle rotates.Specifically, in the present embodiment, the second stroke pushes
Unit 40 includes the second fluid pressure type driving component 41, the second pushing mechanism 42 and second connecting portion part 43.Second operating angle model
It encloses more than the first operating angle range, and the first operating angle range and the second operating angle range form entire change propeller angle
Range, illustratively, when ranging from 0.1 ° to 3 ° of the first operating angle, the second operating angle range is then 3 ° to 90 °.When
It so, can be adaptively to be adjusted to two ranges according to practical operating mode needs.
The rise of second fluid pressure type driving component 41 is larger, and is articulated and connected with wheel hub 10, for example, the second fluid pressure type drives
Pin shaft structure articulated connection may be used between dynamic component 41 and wheel hub 10.Certainly, the second fluid pressure type driving component 41 can be with
Wheel hub 10 is directly connected to or other support constructions with being set on wheel hub 10 are connect.Embodiment according to the present utility model,
Operating angle range is supplied since the second operating angle range is more than first, the second pushing mechanism 42 can pass through second connecting portion part
43 remain connection status with arc connecting portion 51, can remove complicated control process from.For example, when the second pushing mechanism 42
When being articulated and connected with second connecting portion part 43, second connecting portion part 43 is fixedly connected with arc connecting portion 51, so as to make second to push away
Dynamic component 42 realizes articulated connection in the purpose of rotary part 50.
Illustratively, second connecting portion part 43 equally can be hold assembly, then second connecting portion part 43 is equally logical at this time
The clamp port for crossing clamping limb formation forms a fixed connection with arc connecting portion 51, and the second pushing mechanism 42 and second connecting portion part
It can be for example articulated and connected between 43 by pin shaft structure, second connecting portion part 43 is enable to be enclosed relative to the second pushing mechanism 42
Around the axis pin, (i.e. the plane parallel with rotary part 50) rotates in the plane vertical with the rotation axis of pitch variable bearings 20.
As optional embodiment, the second pushing mechanism 42 can also be fixedly connected with second connecting portion part 43, and at this time
Second connecting portion part 43 is articulated and connected with arc connecting portion 51, and specifically, axis pin hinge may be used in second connecting portion part 43 at this time
It is connected to rotary part arc connecting portion 51 in succession, enables second connecting portion part 43 that the second pushing mechanism 42 to be driven to surround the axis pin
In the rotation in surface vertical with the rotation axis of pitch variable bearings 20.In addition, in other examples, second connecting portion
Part 43 can also be used according to the setting form of above-mentioned first pushing mechanism 32 and detachably be connect with arc connecting portion 51,
Certainly, second connecting portion part 43 can also be controlled to switch to connection status with arc connecting portion 51 by above-mentioned controller at this time
Or discrete state.
Illustratively, the second fluid pressure type driving component 41 is telescoping hydraulic cylinder, then the second pushing mechanism 42 is piston rod,
Straight reciprocating motion is performed from there through telescoping hydraulic cylinder driving piston rod；Alternatively, the second fluid pressure type driving component 41 is rotation
Rotary hydraulic cylinder, the second stroke pushing unit 40 further include the leading screw and and leading screw being connect with the second fluid pressure type driving component 41
Nut of the transmission cooperation can be moved along leading screw, at this point, the second pushing mechanism 42 is then the push rod being connect with nut.Thus lead to
It crosses swivel hydraulic cylinder driving push rod and performs straight reciprocating motion.
Since the second fluid pressure type driving component 41 in the second stroke pushing unit 40 is articulated and connected in wheel hub 10, and the
Two pushing mechanism 42 are articulated and connected by second connecting portion part 43 in arc connecting portion 51, so when second connecting portion part 43 clamps
At the arc connecting portion 51 of rotary part 50, the second pushing mechanism 42 by the second fluid pressure type driving component 41 driving force to
During outer extension, it can push rotary part 50 that inner ring 22 is driven to be rotated relative to outer ring 21, i.e. 40 energy of the second stroke pushing unit
Enough angular movements that the linear driving force that second fluid pressure type driving component 41 provides is converted into rotary part 50.It is that is, logical
It crosses the second stroke pushing unit 40 and can push and become in the range of the second operating angle with the blade that rotary part 50 is connect
Paddle.Can pushing away for the second stroke pushing unit 40 be formulated based on the second operating angle range for performing variable pitch action needs as a result,
Dynamic stroke.
Since the second pushing mechanism of Driven by Hydraulic Cylinder 42 directly using big rise in the second stroke pushing unit 40 drives
Rotary part 50 rotates, and the power density of hydraulic mechanism is big, High power output and easily stroke set it is longer, so using
It is larger when second stroke pushing unit 40 of the second fluid pressure type driving component 41 disclosure satisfy that high wind speed or normal start and stop
The variable pitch requirement of load, the operating mode of especially urgent variable pitch.And second stroke pushing unit 40 have higher stability, energy
Enough it is suitable for the reciprocating motion operating mode of nearly constant formula, so in entire variable pitch operating process, the second pushing mechanism 42 is always
It can keep connecting, and driving blade can be maintained for a long time in the second operating angle by second connecting portion part 43 and rotary part 50
Spend the ability that range performs variable pitch action.Therefore using 40 driving blade of the second stroke pushing unit in the second operating angle range
The interior variable pitch that performs acts the service life that can increase vane propeller-changing device entirety.
Embodiment according to the present utility model, vane propeller-changing device can only include first stroke and push away as shown in Figure 1
Moving cell 30 and a second stroke pushing unit 40, the first stroke pushing unit 30 and the second stroke pushing unit 40 difference position
In the both sides in 20 axial centre face of pitch variable bearings (left and right sides of the rotation axis of pitch variable bearings 20 i.e. as shown in Figure 1), and
And it is arranged to that rotary part 50 is pushed to rotate in the same direction.That is, the first stroke pushing unit 30 and the second stroke
Pushing unit 40 performs pushing action relative to the rotation axis of pitch variable bearings 20 in identical angular direction.
Certainly, the first stroke pushing unit 30 and the position of the second stroke pushing unit 40 in Fig. 1 is only schematic
Citing, it is to be understood that the position of the first stroke pushing unit 30 and the second stroke pushing unit 40 is not limited to Fig. 1 institutes
Show, those skilled in the art can also voluntarily be adjusted as needed based on the description in above example.It should be noted that
The installation position of first stroke pushing unit 30 and the second stroke pushing unit 40 needs to meet the requirement not interfered with each other.
In addition, in other examples, in order to which the vane propeller-changing device for making the utility model embodiment is capable of providing more
Big thrust, vane propeller-changing device can also include more first stroke pushing units 30 and/or more second strokes push away
Moving cell 40, at this point, 30 or multiple second stroke pushing unit 40 of multiple first stroke pushing units is configured around variable pitch
The rotation axis of bearing 20 identical angular direction it is unanimous on the whole shrink and stretch.In addition, in the first stroke pushing unit 30
It can also include more driving parts, then it at this time can be in parallel later as the first fluid pressure type driving component using multiple driving parts
31 drive the first pushing mechanism 32 to perform reciprocating motion jointly.It can also include in certain second stroke pushing unit 40 more
A driving part then can drive second to push away as the second fluid pressure type driving component 41 later using multiple driving parts are in parallel at this time
Dynamic component 42 performs reciprocating motion.
Rotary part 50 is in the form of annular discs in the above-described embodiments, but the embodiment of the utility model is not limited to this.
In other variant embodiments, rotary part 50 can also be other structures, such as rotary part 50 can also be annular in shape, then this
When cricoid rotary part 50 can be connect by neighboring with the internal face of inner ring 22, and arc connecting portion 51 is then set
In the inner periphery of the rotary part 50 of annular.40 similary energy of first stroke pushing unit 30 or the second stroke pushing unit at this time
Enough driving inner rings 22 that connect with arc connecting portion 51 are rotated with movable vane piece.
In the above-described embodiments, the first connecting portion part 33 and second connecting portion part 43 are all clamp structure, but this practicality
Novel embodiment is not limited to this, and the first pushing mechanism 32 and the second pushing mechanism 42 can also pass through other connection structures
It is articulated and connected with rotary part 50.For example, in other examples, when the first pushing mechanism 32 is cut with scissors with the first connecting portion part 33
When connecing in succession, the first connecting portion part 33 can also include friction catch structure, then the first connecting portion part 33 may be used friction and connect
Tactile mode is connect with rotary part 50.Similarly, when the second pushing mechanism 42 is articulated and connected with second connecting portion part 43, the
Two connecting components 43 can also include friction catch structure, then mode and the rotation of CONTACT WITH FRICTION may be used in second connecting portion part 43
Rotation member 50 connects.
In conclusion in the specific application process of vane propeller-changing device of the utility model embodiment, when wind speed or
When wind direction changes, blade can change its propeller pitch angle by vane propeller-changing device, so that blade feathering or holding are certain
The angle of attack.
When for control blade perform the target pitch angle that gets of pitch control device of variable pitch action with it is currently practical
When angle between propeller pitch angle is in the range of the second operating angle, it is necessary first to pass through 40 driving blade of the second stroke pushing unit
Rotation, to approach target pitch angle.Specifically, since second connecting portion part 43 keeps connection shape with arc connecting portion 51 always
State, then pitch control device can directly control the second fluid pressure type driving component 41 drive the second pushing mechanism 42 extend outward,
So as to which rotary part 50 be pushed to be rotated in the range of the second operating angle with movable vane piece.
Based on the driving effect of the second stroke pushing unit 40, above-mentioned target pitch angle and currently practical propeller pitch angle it
Between angle be gradually reduced, when the angle reach the first operating angle range upper limit value when, then pitch control device can control
Second stroke pushing unit 40 stops, and second connecting portion part 43 still keeps connecting with arc connecting portion 51 at this time, and this time-varying
Paddle controller then starts the first stroke pushing unit 30 and continues driving blade until reaching target pitch angle.Specifically, blade becomes
Controller in paddle device then controls the first connecting portion part 33 to switch to connection status with arc connecting portion 51, and pitch control device can
The first pushing mechanism 32 is driven to extend outward to directly control the first fluid pressure type driving component 31, so as to push rotary part 50
Band movable vane piece continuation rotates in the range of the first operating angle.Of course it is to be appreciated that above-mentioned pitch control device and blade
Controller in vane change device can be same controller.
It should be noted that after the driving work of the first stroke pushing unit 30, need that the first stroke is controlled to push away
Moving cell 30 stops, and the first connecting portion part 33 is controlled to switch to discrete state with arc connecting portion 51, and pushes away the first stroke
Moving cell 30 is reset to initial position.So as to driving blade next time perform variable pitch when will not be to the second stroke pushing unit 40
Driving effect cause to interfere.First connecting portion can certainly be controlled as needed when driving blade next time performs variable pitch
Part 33 and 51 switching state of arc connecting portion.In addition, the initial position of the first stroke pushing unit 30 not with arc connecting portion 51
Vertically, avoid the first stroke pushing unit 30 that from cannot controlling the direction of driving when providing driving effect, to arc connecting portion 51
It damages.
The vane propeller-changing device of the utility model embodiment is thin by pitch drive mechanism by segmenting variable pitch operating mode as a result,
Point, rationally using the characteristics of combination of two sets of fluid pressure type driving components, practical working condition is well matched with, it can be in not same order
Section, the variable pitch requirement of fast response time, high position precision when meeting driving blade low-angle variable pitch respectively；And driving blade
The variable pitch requirement of high thrust during wide-angle variable pitch.The subdivision of pitch drive mechanism can reduce vane change device cost, improve change
Paddle device precision and reliability improve wind turbine power generation quality, the vane propeller-changing of only a set of pitch drive mechanism can be overcome to fill
Put the problem of not matched that with practical variable pitch operating mode.
Another embodiment according to the present utility model, additionally provides a kind of wind power generating set, the wind power generating set
Including the vane propeller-changing device in above-described embodiment.The wind power generating set of the utility model embodiment, by setting above-mentioned reality
The vane propeller-changing device described in example is applied, two kinds of practical variable pitch operating modes can be directed to, is driven using the type of drive of segmented
Vane propeller-changing improves the variable pitch performance of wind power generating set, so as to improve the power generating quality of wind power generating set, also makes wind
Power generator group has lower operating cost, while also reduces the maintenance cost in later stage.
The utility model can be realized in other specific forms, without departing from its spirit and essential characteristics.Therefore, currently
Embodiment be all counted as being exemplary rather than in all respects it is limited, the scope of the utility model by appended right will
Ask rather than foregoing description definition, also, fall into claim meaning and equivalent in the range of it is whole change so as to all by
It is included among the scope of the utility model.Also, the different technologies feature occurred in different embodiments can be combined,
To obtain advantageous effect.Those skilled in the art will be understood that simultaneously on the basis of research attached drawing, specification and claims
Realize the embodiment of other variations of revealed embodiment.
Claims (10)
1. a kind of vane propeller-changing device of wind power generating set, the blade of the wind power generating set are rotatable by pitch variable bearings
Ground is installed on wheel hub (10), which is characterized in that the vane propeller-changing device includes：
Rotary part (50), connect with the blade, and the rotary part (50) rotates with the blade synchronization；
First stroke pushing unit (30), including the first fluid pressure type driving component (31), can be by first fluid pressure type driving
Component (31) driving performs the first pushing mechanism (32) of straight reciprocating motion and connect with first pushing mechanism (32)
The first connecting portion part (33), the first fluid pressure type driving component (31) connect with the hub hinged, first pushing part
Part (32) is articulated and connected by the first connecting portion part (33) and the rotary part (50), pushes the rotary part (50)
It is rotated in the range of the first operating angle；And
Second stroke pushing unit (40), including the second fluid pressure type driving component (41), can be by second fluid pressure type driving
Component (41) driving performs the second pushing mechanism (42) of straight reciprocating motion and connect with second pushing mechanism (42)
Second connecting portion part (43), the second fluid pressure type driving component (41) connect with the hub hinged, second pushing part
Part (42) is articulated and connected by the second connecting portion part (43) and the rotary part (50), pushes the rotary part (50)
It is rotated in the range of the second operating angle, and the first operating angle range is less than the second operating angle range；
Wherein, the first fluid pressure type driving component (31) is telescoping hydraulic cylinder, and first pushing mechanism (32) is piston
Bar；Alternatively,
The first fluid pressure type driving component (31) is swivel hydraulic cylinder, and first pushing mechanism (32) is push rod, described
Swivel hydraulic cylinder drives the push rod to perform straight reciprocating motion by lead screw pair.
2. vane propeller-changing device according to claim 1, which is characterized in that the rotary part (50) connects with arc
Portion (51), the arc connecting portion (51) are arranged in the plane vertical with the rotation axis of the pitch variable bearings (20) and with institute
Centered on stating rotation axis, the first connecting portion part (33) connect with the arc connecting portion (51), and described first pushes away
Dynamic component (32) is articulated and connected with the first connecting portion part (33).
3. vane propeller-changing device according to claim 2, which is characterized in that the first connecting portion part (33) use can divide
From mode connect with the arc connecting portion (51) so that the first connecting portion part (33) and the arc connecting portion (51)
It can switch between connection status and discrete state.
4. vane propeller-changing device according to claim 3, which is characterized in that further include control unit, described control unit
It is connect with the first connecting portion part (33), for the first connecting portion part (33) to be controlled to be cut with the arc connecting portion (51)
Shift to the connection status or the discrete state.
5. vane propeller-changing device according to claim 4, which is characterized in that second connecting portion part (43) use can divide
From mode connect with the arc connecting portion (51) so that the second connecting portion part (43) and the arc connecting portion (51)
It can switch between connection status and discrete state.
6. vane propeller-changing device according to claim 5, which is characterized in that described control unit is also connect with described second
Component (43) connects, for the second connecting portion part (43) and the arc connecting portion (51) to be controlled to switch to the connection shape
State or the discrete state.
7. vane propeller-changing device according to any one of claim 2 to 4, which is characterized in that
Second pushing mechanism (42) is articulated and connected with the second connecting portion part (43), and the second connecting portion part
(43) it is fixedly connected with the arc connecting portion (51)；Or
Second pushing mechanism (42) is fixedly connected with the second connecting portion part (43), and the second connecting portion part
(43) it is articulated and connected with the arc connecting portion (51).
8. vane propeller-changing device according to claim 1, which is characterized in that the outer ring (21) of the pitch variable bearings (20) with
The blade is fixedly connected, and the rotary part (50) is fixedly connected with the outer ring (21)；Alternatively, the pitch variable bearings is interior
Circle (22) is fixedly connected with the blade, and the rotary part (50) is fixedly connected with the inner ring (22).
9. vane propeller-changing device according to claim 1, which is characterized in that the second fluid pressure type driving component (41) is
Telescoping hydraulic cylinder or swivel hydraulic cylinder.
10. a kind of wind power generating set, which is characterized in that filled including vane propeller-changing as claimed in any one of claims 1-9 wherein
It puts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721422460.9U CN207583555U (en) | 2017-10-30 | 2017-10-30 | The vane propeller-changing device and wind power generating set of wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721422460.9U CN207583555U (en) | 2017-10-30 | 2017-10-30 | The vane propeller-changing device and wind power generating set of wind power generating set |
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| Publication Number | Publication Date |
|---|---|
| CN207583555U true CN207583555U (en) | 2018-07-06 |
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ID=62729948
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721422460.9U Active CN207583555U (en) | 2017-10-30 | 2017-10-30 | The vane propeller-changing device and wind power generating set of wind power generating set |
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| CN (1) | CN207583555U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237114A (en) * | 2020-01-08 | 2020-06-05 | 浙江大学 | Screw pair transmission type horizontal shaft ocean current energy generating set variable pitch mechanism |
| CN111994786A (en) * | 2020-08-26 | 2020-11-27 | 江苏金风科技有限公司 | Blade sling |
-
2017
- 2017-10-30 CN CN201721422460.9U patent/CN207583555U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237114A (en) * | 2020-01-08 | 2020-06-05 | 浙江大学 | Screw pair transmission type horizontal shaft ocean current energy generating set variable pitch mechanism |
| CN111237114B (en) * | 2020-01-08 | 2021-05-18 | 浙江大学 | Screw pair transmission type horizontal shaft ocean current energy generating set variable pitch mechanism |
| CN111994786A (en) * | 2020-08-26 | 2020-11-27 | 江苏金风科技有限公司 | Blade sling |
| CN111994786B (en) * | 2020-08-26 | 2023-09-26 | 江苏金风科技有限公司 | Blade lifting appliance |
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Address after: No.107 Shanghai Road, Urumqi Economic and Technological Development Zone, Urumqi City, Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: No.107 Shanghai Road, Urumqi Economic and Technological Development Zone, Urumqi City, Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |