CN106762443B - Impeller auxiliary locking device and blade installation method for direct drive wind turbine - Google Patents
Impeller auxiliary locking device and blade installation method for direct drive wind turbine Download PDFInfo
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- CN106762443B CN106762443B CN201611259644.8A CN201611259644A CN106762443B CN 106762443 B CN106762443 B CN 106762443B CN 201611259644 A CN201611259644 A CN 201611259644A CN 106762443 B CN106762443 B CN 106762443B
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- auxiliary locking
- impeller
- wheel hub
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000009434 installation Methods 0.000 title abstract description 25
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000010248 power generation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 3
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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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- 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
- Y02E10/728—Onshore wind turbines
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Abstract
本发明提供一种用于直驱风电机组的叶轮辅助锁定装置及叶片安装方法。本发明涉及风力发电领域，解决在叶片安装过程中锁定装置可能由于强度不足而被损坏的技术问题。根据本发明的辅助锁定装置包括第一端部(15)和第二端部(16)，第一端部(15)包括配重部(11)，第二端部(16)用于可拆卸地连接到直驱风电机组的叶轮的轮毂(20)上，从而产生用于辅助锁定所述叶轮的辅助转矩。
The invention provides an impeller auxiliary locking device and a blade installation method for a direct-drive wind generator set. The invention relates to the field of wind power generation, and solves the technical problem that a locking device may be damaged due to insufficient strength during blade installation. The auxiliary locking device according to the present invention includes a first end (15) and a second end (16), the first end (15) includes a counterweight (11), and the second end (16) is used for detachment It is grounded to the hub (20) of the impeller of the direct drive wind turbine, thereby generating an assist torque for assisting in locking the impeller.
Description
Technical field
The present invention relates to wind power generation field more particularly to the impellers of directly driven wind-powered unit.
Background technique
Generally, directly driven wind-powered unit includes tower and the impeller that is rotatably mounted in tower, and impeller is logical
Often including wheel hub and three blades for being connected to wheel hub.Currently, impeller, which is lifted into the method in tower, to be had very much, for example, whole
Body hanging method, in the method usually using two cranes, wherein the hoist cable of a crane fixes two blades, another is hung
The fixed third blade of the hoist cable of vehicle.In integral hoisting method, need using two cranes, since impeller is whole very huge
And it is heavy, two crane cooperation difficulty are big, inconvenient.
In addition, there is also single blade hanging method, for example, the leaf for directly driven wind-powered unit that Fig. 1 is schematically shown
30 ° of angle installation methods of piece.The installation method is described referring to Fig.1, in Fig. 1, open circles indicate the wheel hub of impeller, straight line segment table
Show the blade of impeller.First blade is connected on the wheel hub of impeller by the first step on the ground as shown in (1) of Fig. 1, will even
The wheel hub for being connected to the first blade is lifted into tower, is extended downward so that the first blade is roughly vertical；Second step, such as (2) of Fig. 1
It is shown, the second blade is essentially horizontally lifted near the blade mounting hole of wheel hub, is installed after so that the second blade is rotated 30 ° of angles
Onto wheel hub；Third step, as shown in (3) of Fig. 1, by third blade in a manner of shown in (2) of similar Fig. 1 but with the second leaf
Piece is installed on wheel hub relative to the direction mutually symmetrical with relative to vertical direction；Finally, as Fig. 1 (4) shown in, impeller it is complete
Portion's blade is installed.
Fig. 2 shows the partial schematic diagrams near the locking device of the impeller of directly driven wind-powered unit.At 30 ° of angles of above-mentioned blade
In installation method, Fig. 1 the step of after (1), it usually needs by wheel hub locking to forbid its rotation.As shown in Fig. 2, impeller
Armature spindle 1 (it is fixed to wheel hub) is by the locking device 3 of similar latch structure relative to stator main shaft 2 (it is fixed to tower)
It remain stationary, that is, impeller is locked, to forbid hub rotation.Therefore, when second blade after the installation is completed, due to second
The gravity of a blade will generate the torque for acting on wheel hub and being transmitted to locking device 3.So in 30 ° of angles installation side of blade
It is higher to the intensity requirement of the locking device 3 of impeller in method.
In 30 ° of angle installation methods of above-mentioned blade, in order to solve the problems, such as that locking device intensity is insufficient, it may be considered that increase
Add the intensity of existing locking device or increases additional internal locking device.However, since existing locking device belongs to maturation
Component, changing its design will devote a tremendous amount of time and expense；Moreover, additional internal locking device need to occupy it is additional interior
Portion space, and existing directly driven wind-powered unit is difficult to meet the requirement.
Summary of the invention
As described above, in the mounting method for blade of directly driven wind-powered unit, locking device may due to intensity is insufficient and by
Damage.
In order to solve this problem, the present invention provides a kind of assistant locking apparatus of impeller for directly driven wind-powered unit,
Including first end and the second end, first end includes counterweight part, and the second end is directly driven wind-powered for being detachably connected to
On the wheel hub of the impeller of unit, to generate the assist torque for being used for secondary locking impeller.
According to a preferred embodiment of the present invention, assistant locking apparatus can be with when the second end is connected on wheel hub
The second end is pivot point.
According to a preferred embodiment of the present invention, the second end has interconnecting piece, and interconnecting piece is configured to and wheel hub
Lifting lug is detachably connected.
According to a preferred embodiment of the present invention, it is provided at the second end for rotating assistant locking apparatus
Driving mechanism.
According to a preferred embodiment of the present invention, driving mechanism includes hydraulic motor or air motor or motor.
According to a preferred embodiment of the present invention, the weight of counterweight part is able to carry out adjusting.
According to a preferred embodiment of the present invention, counterweight part includes the support for accommodating counterweight, and passes through support
The quantity and weight of the counterweight of receiving adjusts the weight of counterweight part.
According to a preferred embodiment of the present invention, assistant locking apparatus includes for connecting first end and second end
The length of crossbeam, crossbeam is adjustable.
The leaf that directly driven wind-powered unit is installed according to any aforementioned assistant locking apparatus is utilized the present invention also provides a kind of
The method of piece, comprising: the first blade at least three blades is connected to wheel hub, and the wheel hub for being connected with the first blade is hung
It is attached in tower, extends downward so that the first blade is roughly vertical；By the second blade and third leaf at least three blades
Piece sequence is lifted and is connected on wheel hub；It is characterized in that, the second blade and third blade lifting are connected to wheel hub
Before or while step, the second end of assistant locking apparatus is fixedly attached on wheel hub, is used for secondary locking leaf to generate
The assist torque of wheel.
According to a preferred embodiment of the present invention, the assist torque is adjusted by adjusting the weight of the counterweight part
Size.
According to a preferred embodiment of the present invention, by changing the assistant locking apparatus relative to the second end
Rotational angle adjust the size of the assist torque.
According to a preferred embodiment of the present invention, the size of assist torque is adjusted by adjusting the length of crossbeam.
The method of the blade of assistant locking apparatus according to the present invention and the directly driven wind-powered unit of installation, assistant locking apparatus
Structure it is simple, installation Wind turbines blade in can be convenient to wheel hub apply torque, to help to maintain installation
The balance of period wheel hub；Locking mechanism can also be protected to avoid the damage by excessive torque.In addition, auxiliary according to the present invention
The method of the blade of locking device and the directly driven wind-powered unit of installation, can easily be accommodated the size of torque, and not will increase straight wind dispelling
The structure and weight of motor group itself.
Detailed description of the invention
Hereinafter, being described the specific embodiments of the present invention in detail in conjunction with attached drawing, so that those skilled in the art are more preferably geographical
The solution present invention, wherein the same or similar appended drawing reference indicates the same or similar feature.
Fig. 1 is the schematic diagram of 30 ° of angle installation methods of blade for directly driven wind-powered unit；
Fig. 2 shows the partial schematic diagrams near the locking device of the impeller of directly driven wind-powered unit；
Fig. 3 shows the schematic diagram of assistant locking apparatus according to an embodiment of the invention；
Fig. 4 shows the schematic diagram of a part of the wheel hub of directly driven wind-powered unit；
Fig. 5 shows the schematic diagram that assistant locking apparatus according to an embodiment of the invention has been mounted to wheel hub；With
And
Fig. 6 shows the side for implementing 30 ° of angles of blade installation of Wind turbines with the assistant locking apparatus of the embodiment of the present invention
The flow chart of method；
Wherein, 1- rotation axis；2- stator main shaft；3- locking device；10- assistant locking apparatus；11- counterweight part；12- is horizontal
Beam；13- hydraulic motor；14- interconnecting piece；141- through-hole；15- first end；16- the second end；20- wheel hub；21- lifting lug；4-
First blade；The second blade of 5-；6- third blade.
Specific embodiment
The assistant locking apparatus of the impeller according to the present invention for directly driven wind-powered unit is described below with reference to attached drawing
Specific embodiment.Following detailed description and drawings are for illustratively illustrating the principle of the present invention, and the present invention is not limited to institutes
The preferred embodiment of description, protection scope of the present invention are defined by the claims.
In addition, space correlation term ("upper", "lower", " left side " and " right side " etc.) for describe element shown in the drawings with
The relative positional relationship of another element.Therefore, when space correlation term can be applied to use not with direction shown in the drawings
In same direction.Obviously, although all these space correlation terms refer to direction shown in the drawings for ease of explanation,
It is skilled artisans appreciate that the direction different from direction shown in the drawings can be used.
Hereinafter, describing assistant locking apparatus according to the present invention and its usage mode referring to Fig. 3 to Fig. 6.Fig. 3 describes root
According to the assistant locking apparatus 10 of one embodiment of the present of invention.Fig. 4 shows the signal of a part of the wheel hub of directly driven wind-powered unit
Figure.Fig. 5 shows the schematic diagram that assistant locking apparatus 10 has been mounted to wheel hub, is the view obtained from the front of impeller
Figure, wherein blade illustrates only a part near wheel hub and other parts is omitted.Fig. 6, which is shown, uses the embodiment of the present invention
Assistant locking apparatus implement Wind turbines 30 ° of angles of blade installation method flow chart.In the preferred embodiment of the present invention
In, assistant locking apparatus 10 is formed from steel.
As shown in figure 3, assistant locking apparatus 10 includes first end 15 and the second end 16, first end 15 includes having
The counterweight part 11 of constant weight, the second end 16 are configured as being suitable for being fixedly attached to the wheel hub of the impeller of directly driven wind-powered unit
On.As shown in figure 5, assistant locking apparatus 10 is installed to wheel hub 20 and the second end 16 is fixedly attached to wheel hub 20
When, assistant locking apparatus 10 constitutes the structure of similar cantilever relative to wheel hub 20, due to the weight of counterweight part 11, secondary locking dress
Torque can be applied to wheel hub 20 by setting 10, which is used for the impeller of the directly driven wind-powered unit of secondary locking in the present invention.
In the present embodiment, it is adjustable to be configured to its weight for counterweight part 11.Specifically, referring to Fig. 3, counterweight part 11
Counterweight 112 including support 111 and receiving in the holder.Counterweight part can be adjusted by the weight of change counterweight or quantity etc.
11 weight.
In the present embodiment, assistant locking apparatus 10 is configured to when the second end 16 is fixedly attached to wheel hub 20, energy
Enough with 16 pivot points of the second end, and locking system (not shown) is additionally provided with to be locked at specific angle of rotation
Degree.In addition, be provided with hydraulic motor 13 at the second end 16, the hydraulic motor 13 can be used for driving assistant locking apparatus 10 with
The second end 16 is that pivotal point is rotated.
As shown in figure 3, the assistant locking apparatus 10 further includes the cross being connected between first end 15 and the second end 16
Beam 12, when assistant locking apparatus 10 is installed to wheel hub 20, which can play the power for constituting the torque for acting on wheel hub
The effect of arm.
In addition, in the present embodiment, the second end 16 has interconnecting piece 14, which is configured as being suitable for fixed connect
It is connected on the lifting lug 21 (being shown in Fig. 4) of the wheel hub 20 of directly driven wind-powered unit.Specifically, the interconnecting piece 14 has through-hole 141,
Interconnecting piece 14 can be fixedly attached on the lifting lug 21 of wheel hub 20 by bolt by the through-hole 141.Fig. 4 shows directly driven wind-powered unit
Wheel hub 20 and its lifting lug 21 schematic diagram.As shown in figure 4, wheel hub 20 has lifting lug 21, which can be used for wheel hub
20 are lifted on tower crane, also, the lifting lug 21 can be used for installing assistant locking apparatus 10 according to the present invention.Since lifting lug is
Therefore structure possessed by wheel hub itself is hung if being configured and adapted to the interconnecting piece of assistant locking apparatus to be fixedly attached to this
Ear then haves no need to change the design of wheel hub or corresponding interconnecting piece is additionally arranged on wheel hub.Therefore, secondary locking of the invention
The installation of device is simple, easy to use.
Hereinafter, describing the working principle of assistant locking apparatus 10 of the invention referring to Fig. 5.
Preferred embodiment in accordance with the present invention, during installing the blade of Wind turbines, such as due to being only mounted with
Partial blade and the torque that causes wheel hub to be subject to is uneven, if forbidding hub rotation using the locking device of impeller at this time,
Then the unbalanced torque can be transferred to locking device in turn, thus the risk for bringing locking device to damage.At this point it is possible to incite somebody to action this
The installation of assistant locking apparatus 10 of invention to wheel hub, to wheel hub provide secondary locking torque at least partly offset wheel hub by
Uneven torque.As shown in figure 5, the second end 16 of assistant locking apparatus 10 is fixedly attached to wheel hub 20, specifically,
The lifting lug 21 of wheel hub 20.Therefore, assistant locking apparatus 10 is whole constitutes cantilever design relative to wheel hub.Assistant locking apparatus 10
First end 15 constitutes the end of cantilever, due to being provided with counterweight part 11 in the end, can preferably provide enough
Torque.When assistant locking apparatus 10 is installed to wheel hub 20, it is auxiliary to be arranged to can according to need the direction of the torque of counteracting
The direction for helping locking device 10 to install.For example, in visual angle shown in Fig. 5, it is assumed that in blade 4 and the left side for being only mounted with downside
Blade 5 and in the case that the blade 6 on right side is not yet installed, wheel hub will be by anticlockwise torque, at this time can will be auxiliary
It helps locking device 10 to be installed as counterweight part and provides clockwise assist torque on right side at least partly to offset injustice
Weighing apparatus torque.
In addition, be also configured to can be with the second end 16 for pivot point for assistant locking apparatus 10, and it is locked at specific
Angle position.For example, referring to shown in Fig. 5, assistant locking apparatus 10 can be with the second end 16 pivotal point clockwise or the inverse time
Needle rotation, and it is locked at special angle position.Thus, it is possible to the size and Orientation of assist torque provided by changing.It can set
Additional driving device, such as hydraulic motor 13 are set to drive assistant locking apparatus 10 around the rotation of the second end 16.
In addition, the counterweight part 11 of assistant locking apparatus 10 can be configured as its weight-adjustable section, thus changes lock and mention
The size of the assist torque of confession.For example, weight and quantity by changing the counterweight that is included of counterweight part 11 adjust counterweight part
11 weight.
It therefore, can be by selecting the weight of counterweight part 11 and the rotational angle of assistant locking apparatus 10, to obtain reality
Required sizeable assist torque.Therefore, assistant locking apparatus 10 of the invention can prevent the locking device 3 of impeller by
It is damaged in intensity deficiency.
Hereinafter, implementing directly driven wind-powered unit using the assistant locking apparatus 10 of the embodiment of the present invention referring to Fig. 6 description
Blade is installed to the sequence and installation of wheel hub in the embodiment of this method by the embodiment of the method for 30 ° of angles of blade installation
When blade orientation it is similar to 30 ° of angle installation methods of the prior art described referring to Fig.1, the main distinction is that basis is utilized
The assistant locking apparatus 10 of the embodiment of the present invention.
Specifically, firstly, executing first step 601 is connected to the first blade 4 wheel hub 20 of impeller on the ground
On, then, the wheel hub 20 for being connected with the first blade 4 is lifted into tower, is extended downward so that the first blade 4 is roughly vertical,
Blade azimuth is at this time locked impeller to forbid hub rotation by locking device similar to (1) of Fig. 1；
Then, second step 602 is executed, the second end of assistant locking apparatus 10 of the invention is fixedly attached to wheel hub
The rotational angle of the weight of 10 counterweight part of assistant locking apparatus and opposed second ends is adjusted to set in advance by 20 lifting lug 21
Fixed amount；
Then, third step 603 is executed, the second blade 5 is lifted into tower, for example, can be first by 5 base of the second blade
This is horizontally lifted near the blade mounting hole of wheel hub 20, is installed on wheel hub 20 after the second blade 5 is then rotated 30 ° of angles
Respective vanes mounting hole in, (2) of the blade azimuth similar to Fig. 1；
Then, execute four steps 604, by third blade 6 by it is similar describe in the second step in a manner of be installed to wheel
In the respective vanes mounting hole of hub 20, (3) of the blade azimuth similar to Fig. 1；
Finally, assistant locking apparatus 10 is removed from wheel hub 20, whole blades 4,5,6 of impeller are installed.
Therefore, when implementing 30 ° of angle installations of blade of directly driven wind-powered unit using assistant locking apparatus 10 of the invention, by
Therefore it can use the assist torque in applying assist torque to wheel hub using assistant locking apparatus 10 at least partly to support
Disappear in installation blade process due to the torque that is unbalanced and acting on wheel hub and locking device of mounted Leaf positional distribution.
Accordingly it is possible to prevent the locking device 3 of impeller is damaged since intensity is insufficient.Furthermore, it is possible to by precalculating practical institute
The assist torque of size is needed to select the rotational angle of assistant locking apparatus 10 and the weight of counterweight part, to provide suitable auxiliary
Torque is helped, and can be adjusted according to the needs rotational angle and counterweight part weight during the installation process to adjust torque.Moreover, by
In after whole blades are installed, assistant locking apparatus 10 of the invention can be removed from wheel hub 20, so directly driven wind-powered
Unit does not increase additional weight and structure.Therefore, the branch that tower etc. is used to support directly driven wind-powered unit is also had no need to change
The intensity of support arrangement.
As previously mentioned, although by reference to attached drawing to the secondary locking of an exemplary embodiment of the present invention in specification
It device and is illustrated using the method that assistant locking apparatus installs the blade of directly driven wind-powered unit, but the present invention is not limited to
Above-mentioned specific embodiment, it will be appreciated by those of skill in the art that there is also other embodiments by the present invention.
For example, in the aforementioned embodiment, the length of the horizontal stripe of assistant locking apparatus is constant.But the present invention is not limited to
This.The length of the crossbeam of assistant locking apparatus can also be adjustable, for example, crossbeam is the form etc. of extension sleeve.
For example, in the aforementioned embodiment, assistant locking apparatus under the situation for being fixedly attached to wheel hub can with its second
End is pivot point.But the invention is not restricted to this.Assistant locking apparatus can also simply set up as can not be around its end
Portion's rotation, and set it by weight of preset setting angle, the development length of its own and counterweight part etc. and apply
The assist torque added.
In addition, in the aforementioned embodiment, assistant locking apparatus is provided with hydraulic motor to drive it to turn around the second end
It is dynamic.But the invention is not limited thereto, for drive assistant locking apparatus 10 rotate driving mechanism can also be air motor,
Other driving mechanisms such as motor.
In addition, in the aforementioned embodiment, counterweight part is configured as being adjusted.But this is not that the present invention is necessary.Root
It is needed according to specific, counterweight part also can be set as unadjustable.In addition, in the aforementioned embodiment, using the knot of counterweight and support
Structure adjusts the weight of counterweight part.But the invention is not restricted to this, can also take other modes to adjust the weight of counterweight part,
For example, be perfused in a reservoir with by way of pumping liquid etc..
In addition, in the aforementioned embodiment, assistant locking apparatus is configured to be fixedly attached to the lifting lug of wheel hub.But
It is that the invention is not limited thereto, assistant locking apparatus also may be fixedly attached to the other parts of wheel hub, for example, it is also possible to install
Near lifting lug, additional auxiliary section can be set at other positions of wheel hub to install assistant locking apparatus etc..
In addition, in the aforementioned embodiment, assistant locking apparatus be used to include 30 ° of the directly driven wind-powered unit of three blades
In the installation method of angle, still, the invention is not limited thereto.In the blade installation process comprising more mutliblade directly driven wind-powered unit
In, or during blade otherwise is installed with sequence, can use assistant locking apparatus 10 of the invention
Assist torque is provided.It will be appreciated by those skilled in the art that any kind of directly driven wind-powered installing in any method
During the blade of unit, unbalanced the case where causing generation to act on the torque of wheel hub is distributed simply by the presence of due to gravity,
Can use assistant locking apparatus of the invention, by its second end is fixedly attached to the wheel hub of directly driven wind-powered unit come
Assist torque is generated with secondary locking impeller.
In addition, in the aforementioned embodiment, the method for the blade of the provided directly driven wind-powered unit of installation has specific suitable
Sequence.The step of but the invention is not restricted to this, can be according to sequence described above is not limited to.For example, in the aforementioned embodiment,
Assistant locking apparatus is installed before the second blade is installed, but secondary locking can also be installed while the second blade is installed
Device；Assistant locking apparatus can also be installed when installing the first blade, and be adjusted to the axial general parallel orientation with impeller
Or the weight for reducing counterweight part will be equipped with the first blade and assistant locking apparatus not generate assist torque substantially in this way
Wheel hub be lifted into after tower and adjust orientation, rotational angle and counterweight part weight of assistant locking apparatus etc. again to generate auxiliary
Torque；In addition, in the aforementioned embodiment, installed in the second step before installing the second blade assistant locking apparatus and by its
It is adjusted to provide suitable torque partly to offset the torque of the second blade to be mounted, but the second leaf can also be installed
Assistant locking apparatus is adjusted before piece, relatively small torque is provided, to avoid being filled at this time due to assistant locking apparatus to locking
It sets and generates excessive torque, after the second blade is installed, suitably increased by adjusting rotational angle and/or counterweight part weight etc.
The assist torque of assistant locking apparatus at least partly offsets the torque of the second blade.
As previously mentioned, although exemplary embodiment of the present invention is illustrated by reference to attached drawing in specification,
Be the present invention is not limited to above-mentioned specific embodiment, protection scope of the present invention should by claims and its equivalents Lai
It limits.
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259644.8A CN106762443B (en) | 2016-12-30 | 2016-12-30 | Impeller auxiliary locking device and blade installation method for direct drive wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259644.8A CN106762443B (en) | 2016-12-30 | 2016-12-30 | Impeller auxiliary locking device and blade installation method for direct drive wind turbine |
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| Publication Number | Publication Date |
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| CN106762443A CN106762443A (en) | 2017-05-31 |
| CN106762443B true CN106762443B (en) | 2019-04-30 |
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| CN112502912A (en) * | 2020-11-23 | 2021-03-16 | 沈阳工程学院 | Mechanical locking device and method for direct-drive wind turbine generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102011017801B8 (en) * | 2011-04-29 | 2013-05-08 | Wobben Properties Gmbh | Wind turbine with a plurality of displacement units for mounting or dismounting of rotor blades and method thereof |
| DE102012201088A1 (en) * | 2012-01-25 | 2013-07-25 | Wobben Properties Gmbh | Method and device for mounting a rotor hub of a wind energy plant |
| EP2650537B1 (en) * | 2012-04-11 | 2014-12-31 | Siemens Aktiengesellschaft | A counter weight arrangement to balance out and align a partially mounted rotor of a wind turbine and method thereof |
| CN103644082B (en) * | 2013-11-14 | 2016-11-09 | 上海华仪风能电气有限公司 | Megawatt-class wind turbine wind wheel locking device |
| EP2924284B1 (en) * | 2014-03-28 | 2017-05-03 | Alstom Renovables España, S.L. | Counterweighting a wind turbine hub |
| EP2924283B1 (en) * | 2014-03-28 | 2017-07-19 | Alstom Renovables España, S.L. | Counterweighting a wind turbine hub |
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