CN202228272U - Variable pitch device and wind driven generator - Google Patents
Variable pitch device and wind driven generator Download PDFInfo
- Publication number
- CN202228272U CN202228272U CN2011203586774U CN201120358677U CN202228272U CN 202228272 U CN202228272 U CN 202228272U CN 2011203586774 U CN2011203586774 U CN 2011203586774U CN 201120358677 U CN201120358677 U CN 201120358677U CN 202228272 U CN202228272 U CN 202228272U
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- electronic cylinder
- change device
- vane change
- flexible end
- ball screw
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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 variable pitch device, which includes a hub, a support and a variable pitch rotation support, wherein the variable pitch rotation support is provided with an inner ring and an outer ring which can rotate relatively; the outer ring is fixedly connected with the hub; the support is fixed on the hub; the variable pitch device further includes an electric cylinder and an expansion and contraction control system of the electric cylinder; the electric cylinder penetrates the hub and is in rotational connection with the support; and the telescopic end of the electric cylinder is pivoted at an eccentric position of the inner ring. The electric cylinder is expanded, contracted and swings to drive the inner ring to rotate, and further drive blades connected with the inner ring to rotate, so as to realize the angle adjustment of the blades; and the variable pitch device is driven by the electric cylinder, thereby avoiding the problems of leakage and pollution of hydraulic oil. The utility model further discloses a wind driven generator including the variable pitch device.
Description
Technical field
The utility model relates to technical field of wind power generation, particularly relates to a kind of vane change device that is used for wind-driven generator.In addition, the utility model also relates to a kind of wind-driven generator that comprises above-mentioned vane change device.
Background technique
Wind energy more and more receives the attention of countries in the world as a kind of renewable energy sources of cleaning.Wind-power electricity generation is a kind of inexhaustible cleanliness without any pollution energy, is the largest new energy of our times economic development.
Wind-power electricity generation is that the kinetic energy of keeping watch is transformed into mechanical energy, is converted into electric energy to mechanical energy again.Its principle is to utilize wind to drive the air vane rotation, promotes through the speed of booster engine with rotation again, impels generator for electricity generation.
The windmill of wind-driven generator comprises at least two blades, and when wind during to said blade, aerodynamic force drives said windmill and rotates.Because the nature wind speed is constantly to change, said wind power generating set needs constantly to follow the tracks of the angle of the said blade of adjustment windward side in the course of the work, and best wind energy is caught and power control to accomplish.
Vane change device is the important component part of said wind-driven generator, and said blade drives root changes its windward side around its axis rotation angle by said vane change device.When wind speed changes, can realize the power adjustments of system through adjusting said angle, when wind speed surpasses cut-out wind speed, said blade can be under the effect of said vane change device rapid feathering.
A kind of vane change device of typical wind-driven generator is as shown in Figure 1, and vane change device shown in Figure 1 has adopted hydraulic variable propeller system, and wherein Fig. 1 has omitted wheel hub.
Said hydraulic variable propeller system comprises hydraulic station, hydraulic jack 6 and accumulator 10.Above-mentioned three is usually placed in the wheel hub, and hydraulic element are fed to hydraulic pressure oil in said hydraulic jack 6 and the said accumulator 10.Said control system 11 is made up of cabin control cabinet in the cabin and the wheel hub control cabinet in the said wheel hub usually, and said cabin control cabinet and said wheel hub control cabinet are communicated by slip ring.
Said hydraulic jack 6 is positioned at said wheel hub; The flexible end of said hydraulic jack 6 is fixedly connected torsion head 5; Said torsion head 5 with rotatably be connected with torque arm 4 through bearing, said torque arm 4 supports a side of 2 inner rings 22 and is fixedly connected with becoming the oar revolution, said change oar revolution is supported 2 and is had inner ring 22 and outer ring 21 in relative rotation; Said outer ring 21 is fixed on the said wheel hub, and the opposite side of said inner ring 22 connects said blade.
Hydraulic vane change device relies on the hydraulic oil transferring power, leaks easily to pollute; And need regularly hydraulic oil and filter cleaner to be changed, maintenance cost is higher; The accumulator volume is bigger simultaneously, takies wheel hub than large space.
Therefore, the hydraulic fluid leak that how to solve vane change device pollutes, and is the present technical issues that need to address of those skilled in the art.
The model utility content
The purpose of the utility model provides a kind of vane change device of wind-driven generator, and it is pollution-free that this vane change device does not have leakage.Another purpose of the utility model provides a kind of wind-driven generator that comprises above-mentioned vane change device.
In order to solve the problems of the technologies described above, the utility model provides a kind of vane change device, comprises wheel hub, bearing and change oar revolution support, and said change oar revolution is supported has inner ring and outer ring in relative rotation, and said outer ring is fixedly connected with said wheel hub; Said bearing is fixed on the said wheel hub; Said vane change device also comprises the extension and contraction control system of electronic cylinder and said electronic cylinder, and said electronic cylinder passes said wheel hub and said bearing is rotationally connected, and the flexible end of said electronic cylinder is articulated in the eccentric position of said inner ring.
Preferably, comprise also and reverse plate that the said plate that reverses is fixedly connected with said inner ring, the flexible end of said electronic cylinder and the said plate that reverses articulate.
Preferably, the flexible end of said electronic cylinder articulates through torque arm and the said plate that reverses, and the two ends of said torque arm are connected with the said plate that reverses with said flexible end respectively, and an end is for being fixedly connected the other end for being rotationally connected.
Preferably, the flexible end of said electronic cylinder is connected with said torque arm through torsion head.
Preferably, said electronic cylinder is connected through rotating shaft with said bearing, and said rotating shaft is positioned at passes the plane that said electronic cylinder supports perpendicular to said change oar revolution
Preferably, said electronic cylinder is connected through spherical bearing with said bearing.
Preferably, said extension and contraction control system comprises motor and the retarder that is connected with said motor, and said electronic cylinder comprises extension member and outer tube; The housing of said retarder and said outer tube are fixed, and the output shaft of said retarder connects said extension member.
Preferably; Said extension member comprises ball screw, nut and dispatch tube; The output shaft of said retarder connects said ball screw, and the said nut that cooperates with said ball screw is fixed said dispatch tube, and the end of said dispatch tube is the flexible end of said electronic cylinder.
Preferably; Said extension member comprises ball screw, nut and dispatch tube; The output shaft of said retarder connects said dispatch tube, and the said nut fixing with said dispatch tube cooperates with said ball screw, and the end of said ball screw is the flexible end of said electronic cylinder.
The utility model also provides a kind of wind-driven generator, comprises at least two blades and the vane change device that is connected with said blade, and said vane change device is above-mentioned each described vane change device.
The vane change device that the utility model provided comprises wheel hub, bearing and change oar revolution support, and said change oar revolution is supported has inner ring and outer ring in relative rotation, and said outer ring is fixedly connected with said wheel hub; Said bearing is fixed on the said wheel hub; Said vane change device also comprises the extension and contraction control system of electronic cylinder and said electronic cylinder, and said electronic cylinder passes said wheel hub and said bearing is rotationally connected, and the flexible end of said electronic cylinder is articulated in the eccentric position of said inner ring.
The inner ring that said change oar revolution is supported is fixedly connected the blade of said vane change device control; The extension and contraction control system of said electronic cylinder controls the flexible of said electronic cylinder, and the flexible end of said electronic cylinder is articulated in the eccentric position of said inner ring, and said electronic cylinder can rotate around said bearing; Along with stretching of said electronic cylinder; Said flexible end drives said inner ring and rotates, and said inner ring drives said blade around its rotational, has promptly changed the angle that facings the wind of said blade.
There is not the hydraulic fluid leak pollution problem in the vane change device of said extension and contraction control system control; The vane change device of this structure does not need accumulator simultaneously, and structure member is few, compact structure, and the space that takies wheel hub is little; Electronic control system is with respect to hydraulic control system, safeguards simple and convenient and cost is lower.
In a kind of concrete mode of execution, also comprise and reverse plate, the said plate that reverses is fixedly connected with said inner ring, and the flexible end of said electronic cylinder and the said plate that reverses articulate.
Said flexible end and the said plate that reverses articulate, and reverse the moving said inner ring of strip by said, and then drive said blade rotation, and be structurally more reliable.
In the another kind of concrete mode of execution, the flexible end of said electronic cylinder articulates through torque arm and the said plate that reverses, and the two ends of said torque arm are connected with the said plate that reverses with said flexible end respectively, and an end is for being fixedly connected the other end for being rotationally connected.
The flexible end of said electronic cylinder articulates through torque arm and the said plate that reverses, and can be that said torque arm one end is fixedly connected with the said plate that reverses, the other end and said rotating connection of flexible end; Also can be that said torque arm one end is fixedly connected with said flexible end, the other end reverses with said that plate is rotating to be connected.Dual mode can both be realized the flexible end and the said pivot joint of reversing plate of said electronic cylinder equally, and the said plate that reverses rotates said torque arm along with stretching of said electronic cylinder also can drive.
In the another kind of concrete mode of execution, said extension and contraction control system comprises motor and the retarder that is connected with said motor, and said electronic cylinder comprises extension member and outer tube; The housing of said retarder and said outer tube are fixed, and the output shaft of said retarder connects said extension member.
Said motor rotates; Reduce rotating speed through said retarder, increase moment of torsion, the housing of said retarder and said outer tube are fixed; The output shaft of said retarder connects said extension member; It is flexible that said output shaft drives said flexible end, along with stretching of said flexible end, drives the said plate that reverses that articulates and rotate.
A kind of preferred embodiment in; Said extension member comprises ball screw, nut and dispatch tube; The output shaft of said retarder connects said ball screw, and the said nut that cooperates with said ball screw is fixed said dispatch tube, and the end of said dispatch tube is the flexible end of said electronic cylinder.
The output shaft of said retarder can drive the ball screw rotation of said electronic cylinder; Thereby driving the said nut that is mated moves; The said dispatch tube that said nut drives and it is fixing moves axially along said ball screw, and said dispatch tube end is the flexible end of said electronic cylinder.Said ball screw and nut can be converted into straight line motion with rotation motion.
In another preferred embodiment; Said extension member comprises ball screw, nut and dispatch tube; The output shaft of said retarder connects said dispatch tube, and the said nut fixing with said dispatch tube cooperates with said ball screw, and the end of said ball screw is the flexible end of said electronic cylinder.
The output shaft of said retarder can drive said dispatch tube rotation, and said dispatch tube drives and its fixing said nut rotation, and the said ball screw that cooperates with said nut will move along its axis, and the end of said ball screw is the flexible end of said electronic cylinder.Said flexible end drives the said plate that reverses and rotates, and then drives said inner ring and blade rotation, realizes the change oar of said vane change device.Said ball screw and nut can be converted into straight line motion with rotation motion.
The utility model also provides a kind of wind-driven generator, comprises blade and the vane change device that is connected with blade, and it is pollution-free that the vane change device of this wind-driven generator does not have leakage.
Description of drawings
Fig. 1 is a kind of vane change device schematic representation (having omitted wheel hub) of typical wind-driven generator;
Fig. 2 is a kind of embodiment schematic representation of vane change device that the utility model provided;
Fig. 3 is a kind of embodiment schematic representation of electronic cylinder extension and contraction control system in the vane change device shown in Figure 2;
Fig. 4 is the another kind of embodiment schematic representation of electronic cylinder extension and contraction control system in the vane change device shown in Figure 2.
Embodiment
The core of the utility model provides a kind of vane change device that is used for wind-driven generator, and there is not the hydraulic fluid leak pollution problem in this vane change device.Another core of the utility model provides a kind of wind-driven generator that comprises above-mentioned vane change device.
In order to make those skilled in the art person better understand the scheme of the utility model, the utility model is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 2, Fig. 2 is a kind of embodiment schematic representation of vane change device that the utility model provided.
In a kind of concrete mode of execution; The vane change device that the utility model provided comprises wheel hub 1, bearing 7 and becomes oar revolution support 2; Said change oar revolution is supported 2 and is had inner ring 22 and outer ring 21 in relative rotation, and said outer ring 21 is fixedly connected with said wheel hub 1; Said bearing 7 is fixed on the said wheel hub 1; Said vane change device also comprises the extension and contraction control system 9 of electronic cylinder 8 and said electronic cylinder 8, and said electronic cylinder 8 passes said wheel hub 1 and is rotationally connected with said bearing 7, and the flexible end of said electronic cylinder 8 is articulated in the eccentric position of said inner ring 22.
The outer ring 21 of said change oar revolution support 2 is fixed on the said wheel hub 1, and the inner ring 22 of said change oar revolution support 2 is fixedly connected the blade of said vane change device control, and the rotation of the said relatively outer ring 21 of said inner ring 22 has promptly realized the angle adjustment of said blade.
Said electronic cylinder 8 passes said wheel hub 1 and is rotationally connected with said bearing 7, and the said axis that is rotationally connected is positioned at the plane perpendicular to said change oar revolution support 2 at said electronic cylinder 8 places, and said electronic cylinder 8 can be around said axis swing.Stretching of the said electronic cylinder 8 flexible ends of extension and contraction control system 9 controls of said electronic cylinder 8, the flexible end of said electronic cylinder 8 is articulated in the eccentric position of said inner ring 22.Along with the flexible of said electronic cylinder 8 and the swing of himself, said flexible end drives said inner ring 22 rotations with its pivot joint, and said inner ring 22 drives said blade around its rotational, has promptly changed the angle that facings the wind of said blade.
There is not the hydraulic fluid leak pollution problem in the vane change device of said extension and contraction control system 9 controls; The vane change device of this structure does not need accumulator simultaneously, and structure member is few, compact structure, and the space that takies wheel hub 1 is little; Electronic control system is with respect to hydraulic control system, safeguards simple and convenient and cost is lower.
In the another kind of concrete mode of execution, comprise also and reverse plate 3 that the said plate 3 that reverses is fixedly connected with said inner ring 22, the flexible end of said electronic cylinder 8 and the said plate 3 that reverses articulate.
Said flexible end is realized articulating with said inner ring 22 through the said plate 3 that reverses; The said plate 3 that reverses is fixedly connected with said inner ring 22; Said flexible end and the said plate 3 that reverses articulate; Along with the flexible of said electronic cylinder 8 flexible ends and the swing of himself, drive the said plate 3 that reverses that articulates and rotate, and then drive said inner ring 22 and said blade rotation.Be provided with the said plate 3 that reverses, make said pivot joint structurally more reliable and more stable.
In the concrete mode of execution of another kind, the flexible end of said electronic cylinder 8 articulates through torque arm 4 and the said plate 3 that reverses, and the two ends of said torque arm 4 are connected with the said plate 3 that reverses with said flexible end respectively, and an end is for being fixedly connected the other end for being rotationally connected.
The flexible end of said electronic cylinder 8 can have two kinds through torque arm 4 and the said mode of reversing plate 3 pivot joints:
First kind; Said torque arm 4 one ends are fixedly connected with the said plate 3 that reverses; The rotating connection of flexible end of the other end and said electronic cylinder 8; Can realize the flexible end and the said pivot joint of reversing plate 3 of said electronic cylinder 8, the said plate 3 that reverses rotates said torque arm 4 along with the flexible of said electronic cylinder 3 and the swing of himself can drive, and then realizes the angle adjustment of said blade.
Second kind; Said torque arm 4 one ends reverse 3 rotating connections of plate with said; The other end is fixedly connected with the flexible end of said electronic cylinder 8; Equally also can realize the flexible end and the said pivot joint of reversing plate 3 of said electronic cylinder 8, the pivot joint mode of this structure can realize that equally said flexible end drives the said plate 3 that reverses and rotates.
In further mode of execution, the flexible end of said electronic cylinder 8 is connected with said torque arm 4 through torsion head 5.
In first kind of pivot joint mode of a last embodiment, the flexible end of said electronic cylinder 8 is through torsion head 5 and said 4 rotating connections of torque arm; In second kind of pivot joint mode of a last embodiment, the flexible end of said electronic cylinder 8 is fixedly connected with said torque arm 4 through torsion head 5.
The flexible end of said motor 8 is less usually, and said flexible end is installed said torsion head 5 earlier, realizes and being connected of said torque arm 4 through said torsion head 5, can make connect with move in relative rotation more reliable and more stable.
In sum; The mode that the flexible end of said electronic cylinder 8 and the pivot joint mode of said inner ring 22 not only are confined to above embodiment to be mentioned, the connecting means or the Placement of other that can realize that said flexible end can drive that said inner ring 22 rotates also can be used in the utility model.
In the concrete mode of execution of another kind, said electronic cylinder 8 and said bearing 7 are connected through rotating shaft, and said rotating shaft is positioned at passes said electronic cylinder 8 and support 2 plane perpendicular to said change oar revolution.
Said electronic cylinder 8 is through said rotating shaft and said 7 rotating connections of bearing, and said electronic cylinder 8 can be the center swing with said rotating shaft.Because the swing of said electronic cylinder 7 and its flexible end is flexible, can realize rotation with the said inner ring 22 of its pivot joint.In the another kind of concrete mode of execution, said electronic cylinder 8 and said bearing 7 are connected through spherical bearing.Said electronic cylinder 8 is connected through spherical bearing is rotating with said bearing 7; Connection through said spherical bearing; The swing of said electronic cylinder is not confined to turn round in the plane of supports parallel with said change oar; The certain angle of said electronic cylinder inclination, said spherical bearing also can be realized the swing of said electronic cylinder.
In sum; The method that the Placement of said electronic cylinder 8 and said bearing 7 not only is confined to above embodiment to be mentioned; Can realize said electronic cylinder 8 and said 7 rotating connections of bearing; And said electronic cylinder 8 can support 2 axis swing around vertical said change oar revolution, and other connecting means or the Connecting format that satisfies above-mentioned condition also is fine.
In the concrete mode of execution of another kind, said extension and contraction control system 9 comprises motor 92 and the retarder 91 that is connected with said motor 92, and said electronic cylinder 8 comprises extension member and outer tube 84; The housing of said retarder 91 and said outer tube 84 are fixing, and the output shaft of said retarder 91 connects said extension member.
Said motor 92 rotates, and reduces rotating speed through said retarder 91, increases moment of torsion.The housing of said retarder 91 and said outer tube 84 are fixing, and the output shaft of said retarder 91 connects said extension member, and it is flexible that said output shaft drives said extension member, and along with stretching of said extension member, the said plate 3 that reverses of drive and its pivot joint rotates.
Please refer to Fig. 3, Fig. 3 is a kind of embodiment schematic representation of electronic cylinder extension and contraction control system in the vane change device shown in Figure 2.
A kind of preferred embodiment in; Said extension member comprises ball screw 81, nut 82 and dispatch tube 83; The output shaft of said retarder 91 connects said ball screw 81; The said nut 82 fixing said dispatch tubes 83 that cooperate with said ball screw 81, the end of said dispatch tube 83 is the flexible end of said electronic cylinder 8.
The output shaft of said retarder 91 can drive ball screw 81 rotations of said electronic cylinder 8; Thereby driving the said nut 82 that is mated moves; And then said nut 82 drive with its fixing said dispatch tube 83 along the moving axially of said ball screw 81, said dispatch tube 83 ends are the flexible end of said electronic cylinder 8.The cooperation of said ball screw 81 and said nut 82 can be converted into straight line motion with rotation motion.
Please refer to Fig. 4, Fig. 4 is the another kind of embodiment schematic representation of electronic cylinder extension and contraction control system in the vane change device shown in Figure 2.
In another preferred embodiment; Said extension member comprises ball screw 81, nut 82 and dispatch tube 83; The output shaft of said retarder 91 connects said dispatch tube 83; Cooperate with said ball screw 81 with said dispatch tube 83 fixing said nuts 82, the end of said ball screw 81 is the flexible end of said electronic cylinder 8.
The output shaft of said retarder 91 can drive said dispatch tube 83 rotations; Said dispatch tube 83 drives and its fixing said nut 82 rotations; The ball screw 81 that cooperates with said nut 82 will be along himself move axially, and the end of said ball screw 81 is the flexible end of said electronic cylinder 8.Said ball screw 81 cooperates and can rotation motion be converted into straight line motion with said nut 82.
In sum; The Placement that the output shaft of said retarder 91 connects the flexible end of said electronic cylinder 8 not only is confined to the mode mentioned among the above embodiment, and straight-line other connecting means or the Placements that can the rotation motion of said motor 92 be converted into said electronic cylinder 8 flexible ends also can be used in the utility model.
Except above-mentioned vane change device, the utility model also provides a kind of wind-driven generator that comprises above-mentioned vane change device, and other part-structures of this wind-driven generator please refer to existing technology, and this paper repeats no more.
More than wind-force Electrical Discharge Machine and vane change device that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the mode of execution of the utility model are set forth, above embodiment's explanation just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the scope of the utility model claim protection.
Claims (10)
1. a vane change device comprises wheel hub (1), bearing (7) and becomes the oar revolution and supports (2), and said change oar revolution is supported (2) and had inner ring (22) and outer ring (21) in relative rotation, and said outer ring (21) are fixedly connected with said wheel hub (1); Said bearing (7) is fixed on the said wheel hub (1); It is characterized in that; Said vane change device also comprises the extension and contraction control system (9) of electronic cylinder (8) and said electronic cylinder (8); Said electronic cylinder (8) passes said wheel hub (1) and is rotationally connected with said bearing (7), and the flexible end of said electronic cylinder (8) is articulated in the eccentric position of said inner ring (22).
2. vane change device as claimed in claim 1 is characterized in that, also comprises reversing plate (3), and the said plate (3) that reverses is fixedly connected with said inner ring (22), and the flexible end of said electronic cylinder (8) and the said plate (3) that reverses articulate.
3. vane change device as claimed in claim 2; It is characterized in that; The flexible end of said electronic cylinder (8) articulates through torque arm (4) and the said plate (3) that reverses; The two ends of said torque arm (4) are connected with the said plate (3) that reverses with said flexible end respectively, and an end is for being fixedly connected the other end for being rotationally connected.
4. vane change device as claimed in claim 3 is characterized in that, the flexible end of said electronic cylinder (8) is connected with said torque arm (4) through torsion head (5).
5. like each described vane change device of claim 1 to 4, it is characterized in that said electronic cylinder (8) is connected through rotating shaft with said bearing (7), said rotating shaft is positioned at passes said electronic cylinder (8) supports (2) perpendicular to said change oar revolution plane.
6. like each described vane change device of claim 1 to 4, it is characterized in that said electronic cylinder (8) is connected through spherical bearing with said bearing (7).
7. like each described vane change device of claim 1 to 4, it is characterized in that said extension and contraction control system (9) comprises motor (92) and the retarder (91) that is connected with said motor (92), said electronic cylinder (8) comprises extension member and outer tube (84); The housing of said retarder (91) and said outer tube (84) are fixing, and the output shaft of said retarder (91) connects said extension member.
8. vane change device as claimed in claim 7; It is characterized in that; Said extension member comprises ball screw (81), nut (82) and dispatch tube (83); The output shaft of said retarder (91) connects said ball screw (81), and the said nut (82) that cooperates with said ball screw (81) is fixed said dispatch tube (83), and the end of said dispatch tube (83) is the flexible end of said electronic cylinder (8).
9. vane change device as claimed in claim 7; It is characterized in that; Said extension member comprises ball screw (81), nut (82) and dispatch tube (83); The output shaft of said retarder (91) connects said dispatch tube (83), and the said nut (82) fixing with said dispatch tube (83) cooperates with said ball screw (81), and the end of said ball screw (81) is the flexible end of said electronic cylinder (8).
10. a wind-driven generator comprises at least two blades and the vane change device that is connected with said blade, it is characterized in that, said vane change device is each described vane change device of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203586774U CN202228272U (en) | 2011-09-22 | 2011-09-22 | Variable pitch device and wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203586774U CN202228272U (en) | 2011-09-22 | 2011-09-22 | Variable pitch device and wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228272U true CN202228272U (en) | 2012-05-23 |
Family
ID=46078859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203586774U Expired - Lifetime CN202228272U (en) | 2011-09-22 | 2011-09-22 | Variable pitch device and wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228272U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878015A (en) * | 2012-10-19 | 2013-01-16 | 国电南瑞科技股份有限公司 | Hydraulic pitch variation system control cabinet applicable to wind generating set |
| CN106438197A (en) * | 2016-12-12 | 2017-02-22 | 江苏金风科技有限公司 | Device and method for rotating wind power generator rotor and wind power generator set |
| CN107587975A (en) * | 2017-08-14 | 2018-01-16 | 山东中车风电有限公司 | A kind of wind-driven generator hydraulic blade pitch device and system |
| WO2021121495A1 (en) * | 2019-12-20 | 2021-06-24 | Vestas Wind Systems A/S | Improvements relating to the transportation of wind turbine rotor hubs |
| US11208983B2 (en) | 2016-02-04 | 2021-12-28 | Vestas Wind Systems A/S | Wind turbine pitch actuator mounting structure |
-
2011
- 2011-09-22 CN CN2011203586774U patent/CN202228272U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878015A (en) * | 2012-10-19 | 2013-01-16 | 国电南瑞科技股份有限公司 | Hydraulic pitch variation system control cabinet applicable to wind generating set |
| CN102878015B (en) * | 2012-10-19 | 2014-12-10 | 国电南瑞科技股份有限公司 | Hydraulic pitch variation system control cabinet applicable to wind generating set |
| US11208983B2 (en) | 2016-02-04 | 2021-12-28 | Vestas Wind Systems A/S | Wind turbine pitch actuator mounting structure |
| CN106438197A (en) * | 2016-12-12 | 2017-02-22 | 江苏金风科技有限公司 | Device and method for rotating wind power generator rotor and wind power generator set |
| CN106438197B (en) * | 2016-12-12 | 2019-02-12 | 江苏金风科技有限公司 | For the device of rotary wind power generator rotor, method and wind power generating set |
| CN107587975A (en) * | 2017-08-14 | 2018-01-16 | 山东中车风电有限公司 | A kind of wind-driven generator hydraulic blade pitch device and system |
| WO2021121495A1 (en) * | 2019-12-20 | 2021-06-24 | Vestas Wind Systems A/S | Improvements relating to the transportation of wind turbine rotor hubs |
| CN114846235A (en) * | 2019-12-20 | 2022-08-02 | 维斯塔斯风力***有限公司 | Improvements relating to the transport of wind turbine rotor hubs |
| CN114846235B (en) * | 2019-12-20 | 2024-06-14 | 维斯塔斯风力***有限公司 | Improvements relating to the transportation of wind turbine rotor hubs |
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Address after: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee after: Sany Heavy Energy Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: SANY HEAVY ENERGY Co.,Ltd. Address after: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee after: SANY HEAVY ENERGY Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. Address after: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee after: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: SANY ELECTRIC Co.,Ltd. |
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Granted publication date: 20120523 |