CN102852722A - Hub displacement device and lifting method for impellers in direct-driven wind generating set - Google Patents
Hub displacement device and lifting method for impellers in direct-driven wind generating set Download PDFInfo
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- CN102852722A CN102852722A CN2012103657088A CN201210365708A CN102852722A CN 102852722 A CN102852722 A CN 102852722A CN 2012103657088 A CN2012103657088 A CN 2012103657088A CN 201210365708 A CN201210365708 A CN 201210365708A CN 102852722 A CN102852722 A CN 102852722A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a hub displacement device and a lifting method for impellers in a direct-driven wind generating set and relates to the technical field of wind power generation. The problems that the in the prior art, when the impellers are lifted, the environment is damaged and the cost is high are solved. The hub displacement device comprises a driving unit, wherein the driving unit is fixed on a fixed shaft of an electric generator, the driving unit is used for outputting power or driving an assembly of a first blade and the hub to rotate 120 degrees towards a specified direction around an axle center of a moving shaft of the electrical generator or driving an assembly of the first blade and a second blade and the hub to rotate 120 degrees towards a specified direction around the axle center of the moving shaft, the hub and the moving shaft are connected fixedly, and the electrical generator is fixed on an engine room base at the top end of a tower of a fan.
Description
Technical field
The present invention relates to technical field of wind power generation, relate in particular to wheel hub displacement device and lifting method for direct wind-driven generator group impeller.
Background technique
Wind-power electricity generation is as a green industry, and energy-saving and environmental protection are that its chief value one of embodies.In wind power plant development ﹠ construction process, energy-saving and environmental protection also are one of common targets of pursuing of wind-power electricity generation industry relevant enterprise.The installation of direct wind-driven generator group is an important step in the wind power plant development ﹠ construction, comprises generator lifting and impeller lifting.
Wherein, the impeller lifting method is divided into terrestrial operation and two parts of aerial operation.Terrestrial operation comprises: at first, put wheel hub fixing on ground; Secondly, use three cranes respectively three blades all to be assembled with-90 degree liftings and with wheel hub, form impeller; Again, wherein two blades become 90 degree by-90 degree change oars.Blade-90 degree state be blade outline portion up, crossbeam part state down, blade 90 degree states be blade turn over after the turnback crossbeam up, profile state down.
Aerial operation comprises: at first, impeller is lifted in the air; Secondly, impeller is winched to the specified position of pylon, and wheel hub is fixedly connected with the moving axis of generator; At last, the 3rd in impeller blade that does not become oar in terrestrial operation finished the change oar aloft.
In the process of implementing the impeller lifting, terrestrial operation need to take the place of certain area, so the demand in place when needing land acquisition to satisfy the impeller assembling, cost is higher.And the area of impeller is larger, when impeller assembling and placement, require also higher to the levelling of the land degree, need to cut down with smooth location the place vegetation that impeller covers, not only cause environmental disruption, and so that the cost of land acquisition further raise.In terrestrial operation, need to use simultaneously three cranes in addition, cost further raises because the crane use amount is more.Therefore, run counter to the target that reaches the energy-saving and environmental protection that require in the wind power plant development ﹠ construction process.
Summary of the invention
Embodiments of the invention provide a kind of wheel hub displacement device and lifting method for direct wind-driven generator group impeller, the high problem of welding, cost that has existed when having solved impeller lifting in the prior art.
For achieving the above object, embodiments of the invention adopt following technological scheme:
A kind of wheel hub displacement device for direct wind-driven generator group impeller comprises driver element, is fixed on the dead axle of generator; Described driver element is used for outputting power, spend towards assigned direction rotation 120 around the axle center of the moving axis of described generator with the assemblying body that drives the first blade and wheel hub, the assemblying body that perhaps drives described the first blade, the second blade and described wheel hub is spent towards described assigned direction rotation 120 around the axle center of described moving axis; Described wheel hub is fixedly connected with described moving axis, and described generator is fixed on the engine room foundation on blower fan pylon top.
Preferably, described driver element also is used for driving described wheel hub and is in vertical state around the surface of the first pitch variable bearings flange of the axle center of described moving axis rotation on to it.
Preferably, described device also comprises gear unit, is fixed on the described moving axis, and the power of described driver element output is passed to described wheel hub by described gear unit.
Wherein, described driver element comprises motor, retarder and gear, and the input shaft of described retarder is fixedly connected with the pto＝power take-off of described motor, and described gear is fixed on the output shaft of described retarder; Described gear unit is gear ring, described gear ring and the engagement of described gear.
Preferably, the means of fixation of described driver element and described dead axle is that bolt is fixed.
A kind of lifting method that is used for direct wind-driven generator group impeller that uses the above-mentioned wheel hub displacement device that is used for direct wind-driven generator group impeller to carry out, comprising: (1) lifts wheel hub to specified position, and is fixedly connected with the moving axis of generator; Described generator is fixed on the engine room foundation on blower fan pylon top; (2) lifting of the first blade level is also aloft assembled with described wheel hub; (3) described driver element is spent around the axle center of described moving axis the assemblying body of described the first blade and described wheel hub towards assigned direction rotation 120; (4) lifting of the second blade level is also aloft assembled with described wheel hub; (5) described driver element is spent around the axle center of described moving axis the assemblying body of described the first blade, described the second blade and described wheel hub towards described assigned direction rotation 120; (6) lifting of the 3rd blade level is also aloft assembled with described wheel hub.
Preferably, described step (2) specifically comprises: with described the first blade level lifting; The described wheel hub of described drive unit drives makes the surface of the first pitch variable bearings flange of described wheel hub on the axle center of described moving axis rotates to it be in vertical state; Described the first root of blade flange is fixedly connected with described the first pitch variable bearings flange; Described step (4) specifically comprises: described the second root of blade flange is fixedly connected with the second pitch variable bearings flange of described wheel hub; Described step (6) specifically comprises: described the 3rd root of blade flange is fixedly connected with the 3rd pitch variable bearings flange of described wheel hub.
Preferably, described method also comprises: regulate the first pitch variable bearings flange of described wheel hub, described the first blade is become the oar operation.
Wherein, described method also comprises: regulate the second pitch variable bearings flange of described wheel hub, described the second blade is become the oar operation.
Preferably, described method also comprises: regulate the 3rd pitch variable bearings flange of described wheel hub, described the 3rd blade is become the oar operation.
What the embodiment of the invention provided is used in the wheel hub displacement device and lifting method of direct wind-driven generator group impeller, because the driver element in the wheel hub displacement device can drive hub and the first blade and/or the second blade rotary, make blade can finish one by one assembling with wheel hub aloft, therefore shared ground site area has reduced greatly in the process of implementing the impeller assembling, thereby greatly reduces the great number cost that produces owing to land acquisition.Simultaneously, also greatly reduce in the process of impeller assembling the destructiveness to its vegetation that covers, and then reduced environmental disruption.In addition, in the whole hoisting process of impeller, wheel hub and each blade lift by crane respectively, can finish respectively wheel hub and vaned lifting by a crane, saved the crane usage quantity, so that the cost of Construction of Wind Power further reduces, therefore, reached the target of the energy-saving and environmental protection in the wind power plant development ﹠ construction process.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of the lifting method that is used for direct wind-driven generator group impeller that Fig. 1 provides for the embodiment of the invention;
The skeleton diagram that is used for inter-module annexation related in the lifting method of direct wind-driven generator group impeller that Fig. 2 provides for the embodiment of the invention;
The schematic representation of the wheel hub displacement device that is used for direct wind-driven generator group impeller that Fig. 3 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work belongs to the scope of protection of the invention.
The embodiment of the invention provides a kind of wheel hub displacement device for direct wind-driven generator group impeller, as shown in Figure 3, comprises driver element 31, is fixed on the dead axle 212 of generator 21.Driver element 31 is used for outputting power, spend towards assigned direction rotation 120 around the axle center of the moving axis 211 of generator 21 with the assemblying body of wheel hub 244 to drive the first blade 241, the axle center that perhaps drives the assemblying body moving axle 211 of the first blade 241, the second blade 242 and wheel hub 244 is spent towards assigned direction rotation 120, wheel hub 244 is fixedly connected with moving axis 211, and generator 21 is fixed on the engine room foundation 221 on blower fan pylon top.
What the embodiment of the invention provided is used in the wheel hub displacement device of direct wind-driven generator group impeller, referring to Fig. 2 and Fig. 3 owing to comprise the driver element 31 that is fixed on generator 21 dead axles 212, and generator 21 is fixed on the engine room foundation 221 on blower fan pylon 22 tops, therefore, driver element 31 is fixed.Wheel hub 244 is fixedly connected with moving axis 211, because driver element 31 is used for outputting power, spends towards assigned direction rotation 120 around the axle center of the moving axis 211 of generator 21 with the assemblying body of wheel hub 244 to drive the first blade 241, thereby the second blade 242 is installed; Driver element 31 or the axle center of assemblying body moving axle 211 that drives the first blade 241, the second blade 242 and wheel hub 244 be towards assigned direction rotation 120 degree, thereby the 3rd blade 243 is installed.
Because driver element wheel hub and the first blade and/or the second blade rotary in the wheel hub displacement device, can make blade can finish one by one assembling with wheel hub aloft, therefore shared ground site area has reduced greatly in the process of implementing the impeller assembling, thereby greatly reduces the great number cost that produces owing to land acquisition.Simultaneously, also greatly reduce in the process of impeller assembling the destructiveness to its vegetation that covers, and then reduced environmental disruption.In addition, in the whole hoisting process of impeller, wheel hub and each blade lift by crane respectively, can finish respectively wheel hub and vaned lifting by a crane, saved the crane usage quantity, so that the cost of Construction of Wind Power further reduces, therefore, reached the target of the energy-saving and environmental protection in the wind power plant development ﹠ construction process.
Certainly, the driver element in the above-mentioned wheel hub displacement device also can drive vane or the assemblying body of blade and wheel hub rotate specified angle around the axle center of the moving axis of generator towards assigned direction, such as 90 degree, 180 degree etc.
In addition, after the wheel hub assembling of above-mentioned driver element impeller in finishing a direct wind-driven generator group, can disassemble from the dead axle of generator, be used for the wheel hub assembling of other direct wind-driven generator group impellers, use when perhaps the blade of impeller keeps in repair or changes in carrying out the direct wind-driven generator group.
In the device that above-described embodiment provides, the surface of the first pitch variable bearings flange 231 of the axle center rotation that driver element 31 can also be used for drive hub 244 moving axles 211 on it is in vertical state.
Because the surface of the first pitch variable bearings flange 231 of the axle center rotation that driver element 31 also is used for drive hub 244 moving axles 211 on it is in vertical state, so that 2411 of the first root of blade flanges and the first pitch variable bearings flange 231 is surperficial parallel, thereby make things convenient for itself and the first pitch variable bearings flange 231 abutting joints, also can avoid connecting bolt to be subject to extra-stress.
In the device that above-described embodiment provides, the power of driver element 31 can be directly passed to moving axis 211, passes to the wheel hub 244 that is fixed on the moving axis 211 again, also can be alternate manner.For example described wheel hub displacement device can also comprise gear unit 32, is fixed on the moving axis 211, and the power of driver element 31 outputs is passed to wheel hub 244 by gear unit 32.
Because gear unit 32 is fixed on the moving axis 211, and the power of driver element 31 outputs can be passed to wheel hub 244 by gear unit 32, so gear unit 32 can make wheel hub 244 obtain more suitably power by certain velocity ratio.
Particularly, in the said apparatus, driver element 31 can comprise motor 311, retarder 312 and gear 313, the input shaft of retarder 312 is fixedly connected with the pto＝power take-off of motor 311, gear 313 is fixed on the output shaft of retarder 312, gear unit 32 can be gear ring 321, gear ring 321 and gear 313 engagements.
Certainly, the concrete structure of driver element 31 and gear unit 32 can be not limited to structure shown in Figure 3, can be other any can outputting power and with the structure of transmission of power to wheel hub 244.
Because, driver element 31 can comprise motor 311, retarder 312 and gear 313, and the input shaft of retarder 312 is fixedly connected with the pto＝power take-off of motor 311, the power of motor 311 output is through retarder 312 and adjusted, and gear 313 is fixed on the output shaft of retarder 312, so that the transmission of power after retarder 312 is regulated is to gear 313, again because, gear unit 32 is gear ring 321, and gear ring 321 and gear 313 engagements, thereby make the power of motor 311 outputs satisfy the suitable power of gear ring 321 acquisitions.In addition, because gear ring 321 is fixed on the moving axis 211, can to moving axis 211 more protections, improve the strength and stiffness of moving axis 211.
Particularly, in the said apparatus, driver element 31 can be fixed for bolt with the means of fixation of dead axle 212, bolt connects is convenient to mount and dismount driver element 31, so that this driver element 31 can use in a plurality of direct wind-driven generator groups of same model, come the position of wheel hub 244 is adjusted, with the installation blade, thereby save cost.
The embodiment of the invention also provides a kind of lifting method for direct wind-driven generator group impeller, the wheel hub displacement device that is used for direct wind-driven generator group impeller that the method has used above-described embodiment to describe, such as Fig. 1, Fig. 2 and shown in Figure 3, comprise the steps.
101, wheel hub 244 is lifted to specified position, and be fixedly connected with the moving axis 211 of generator 21, generator 21 is fixed on the engine room foundation 221 on blower fan pylon 22 tops.
102, the lifting of the first blade 241 levels is also aloft assembled with wheel hub 244.
103, driver element 31 is spent the first blade 241 and the axle center of the assemblying body moving axle 211 of wheel hub 244 towards assigned direction rotation 120.
104, the lifting of the second blade 242 levels is also aloft assembled with wheel hub 244.
105, driver element 31 is spent the axle center of the assemblying body moving axle 211 of the first blade 241, the second blade 242 and wheel hub 244 towards assigned direction rotation 120.
106, the lifting of the 3rd blade 243 levels is also aloft assembled with wheel hub 244.
What the embodiment of the invention provided is used in the lifting method of direct wind-driven generator group impeller, referring to Fig. 2, generator 21 is fixed on the engine room foundation 221 on blower fan pylon 22 tops, because wheel hub 244 is fixedly connected with the moving axis 211 of generator 21, when the moving axis 211 of generator 21 rotated, wheel hub 244 can rotate with the moving axis 211 of generator 21.And three blade difference level liftings are also aloft assembled with wheel hub 244, can form impeller 24.Concrete hoisting process can for: when the first blade 241 complete with wheel hub 244 assemblings, driver element 31 with the axle center of the assemblying body moving axle 211 of the two formation towards assigned direction rotation 120 degree, so that the second blade 242 to be installed.As a same reason, complete with wheel hub 244 assemblings when the second blade 242, driver element 31 is spent the axle center of the assemblying body moving axle 211 that the first blade 241, the second blade 242 and wheel hub 244 form towards assigned direction rotation 120, so that the 3rd blade 243 to be installed.
Because impeller has been finished assembling aloft, so shared ground site area has reduced greatly in implementing the impeller hoisting process, thereby greatly reduce the great number cost that produces owing to land acquisition, simultaneously, also greatly reduce in the process of impeller assembling the destructiveness to its vegetation that covers, and then reduced environmental disruption.In addition, in the whole hoisting process, can finish respectively wheel hub and vaned lifting by a crane, saved the crane usage quantity, so that the cost of Construction of Wind Power further reduces, therefore, reached the target of the energy-saving and environmental protection in the wind power plant development ﹠ construction process.
In addition, arrive aerial owing to impeller 24 is assembled complete rear integral hoisting on ground in the prior art, when wheel hub 244 docks with the moving axis 211 of generator 21, owing to may have angle between wheel hub 244 and moving axis 211 flanged surfaces, and impeller 24 weight cause more greatly described angle to be not easy to regulate, and are prone to the flimsy problem of connecting bolt that connects two faces.And among the embodiment provided by the invention, first wheel hub 244 liftings are connected with the moving axis 211 of generator 21, wheel hub 244 weight are lighter, even exist described angle also to regulate than being easier between wheel hub 244 and moving axis 211 flanged surfaces.Connecting bolt stressed yet smaller can not caused the damage of connecting bolt.
There are angle in pitch variable bearings flanged surface and root of blade flanged surface during for fear of blade and wheel hub assembling, so that connecting bolt is subject to the problem of extra-stress, in the lifting method for direct wind-driven generator group impeller provided by the invention, step 102 specifically can comprise: the first blade 241 levels are lifted by crane, the surface of the first pitch variable bearings flange 231 of the axle center rotation that makes wheel hub 244 moving axles 211 on it is in vertical state, and the first root of blade flange 2411 is fixedly connected with the first pitch variable bearings flange 231; Step 104 specifically can comprise: the second root of blade flange 2421 is fixedly connected with the second pitch variable bearings flange 232 of wheel hub 244; Step 106 specifically can comprise: the 3rd root of blade flange 2431 is fixedly connected with the 3rd pitch variable bearings flange 233 of wheel hub 244.
Because step 102 specifically can comprise: the first blade 241 levels are lifted by crane, the surface of the first pitch variable bearings flange 231 of the axle center rotation that driver element 31 drive hubs 244 make wheel hub 244 moving axles 211 on it is in vertical state, so that the first blade 241 levels rise winch to aerial after, 2411 of the first root of blade flanges are surperficial parallel with the first pitch variable bearings flange 231, thereby make things convenient for itself and the first pitch variable bearings flange 231 abutting joints, also can avoid connecting bolt to be subject to extra-stress.The first root of blade flange 2411 is fixedly connected with the first pitch variable bearings flange 231, so that the first blade 241 firmly is connected on the wheel hub 244, forms assemblying body.Step 104 specifically can comprise: the second root of blade flange 2421 is fixedly connected with the second pitch variable bearings flange 232 of wheel hub 244; So that the second blade 242 firmly is connected on the wheel hub 244, form assemblying body.Step 106 specifically can comprise: the 3rd root of blade flange 2431 is fixedly connected with the 3rd pitch variable bearings flange 233 of wheel hub 244, so that the 3rd blade 243 firmly is connected on the wheel hub 244, forms impeller 24.
In the said method, can also comprise: regulate the first pitch variable bearings flange 231 of wheel hub 244, the first blade 241 is become the oar operation.
Owing to regulate the first pitch variable bearings flange 231 of wheel hub 244, can make the first blade 241 around the central rotation of 231 of its flange at bottom 2411/first pitch variable bearings flanges, thereby can realize the first blade 241 is become the oar operation.
In the said method, can also comprise: regulate the second pitch variable bearings flange 232 of wheel hub 244, the second blade is become the oar operation.
Owing to regulate the second pitch variable bearings flange 232 of wheel hub 244, can make the second blade 242 around the central rotation of 232 of its flange at bottom 2421/second pitch variable bearings flanges, thereby can realize the second blade 242 is become the oar operation.
In the said method, can also comprise: regulate the 3rd pitch variable bearings flange 233 of wheel hub 244, the 3rd blade 243 is become the oar operation.
Owing to regulate the 3rd pitch variable bearings flange 233 of wheel hub 244, can make the 3rd blade 243 around the central rotation of 233 of its flange at bottom the 2431/the 3rd pitch variable bearings flanges, thereby can realize the 3rd blade 243 is become the oar operation.
In addition, in the prior art, on land or the sea, when single blade of direct wind-driven generator group needs repairing or changes, whole impeller integral body need to be disassembled from pylon, after ground is complete with the problem blade exchanging, again with the impeller integral hoisting to pylon, the problem of cause that cost is high, operation easier is large, efficient is low, being inconvenient to operate.And the device and the method that adopt above-described embodiment to provide, can be implemented in aerial with single blade dismounting and installation, need not whole impeller demolition is got off, thoroughly solved the problem that the cost that exists in the prior art is high, operation easier is large, efficient is low, be inconvenient to operate.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. a wheel hub displacement device that is used for direct wind-driven generator group impeller is characterized in that, comprises driver element, is fixed on the dead axle of generator;
Described driver element is used for outputting power, spend towards assigned direction rotation 120 around the axle center of the moving axis of described generator with the assemblying body that drives the first blade and wheel hub, the assemblying body that perhaps drives described the first blade, the second blade and described wheel hub is spent towards described assigned direction rotation 120 around the axle center of described moving axis;
Described wheel hub is fixedly connected with described moving axis, and described generator is fixed on the engine room foundation on blower fan pylon top.
2. device according to claim 1 is characterized in that, described driver element also is used for driving described wheel hub and is in vertical state around the surface of the first pitch variable bearings flange of the axle center of described moving axis rotation on to it.
3. device according to claim 1 and 2 is characterized in that, also comprises gear unit, is fixed on the described moving axis, and the power of described driver element output is passed to described wheel hub by described gear unit.
4. device according to claim 3, it is characterized in that, described driver element comprises motor, retarder and gear, and the input shaft of described retarder is fixedly connected with the pto＝power take-off of described motor, and described gear is fixed on the output shaft of described retarder;
Described gear unit is gear ring, described gear ring and the engagement of described gear.
5. device according to claim 1 is characterized in that, the means of fixation of described driver element and described dead axle is that bolt is fixed.
6. the lifting method that is used for direct wind-driven generator group impeller that right to use requires 1 to 5 each described device to carry out is characterized in that, comprising:
(1) wheel hub is lifted to specified position, and be fixedly connected with the moving axis of generator; Described generator is fixed on the engine room foundation on blower fan pylon top;
(2) lifting of the first blade level is also aloft assembled with described wheel hub;
(3) described driver element is spent around the axle center of described moving axis the assemblying body of described the first blade and described wheel hub towards assigned direction rotation 120;
(4) lifting of the second blade level is also aloft assembled with described wheel hub;
(5) described driver element is spent around the axle center of described moving axis the assemblying body of described the first blade, described the second blade and described wheel hub towards described assigned direction rotation 120;
(6) lifting of the 3rd blade level is also aloft assembled with described wheel hub.
7. method according to claim 6 is characterized in that, described step (2) specifically comprises: with described the first blade level lifting; The described wheel hub of described drive unit drives makes the surface of the first pitch variable bearings flange of described wheel hub on the axle center of described moving axis rotates to it be in vertical state; Described the first root of blade flange is fixedly connected with described the first pitch variable bearings flange;
Described step (4) specifically comprises: described the second root of blade flange is fixedly connected with the second pitch variable bearings flange of described wheel hub;
Described step (6) specifically comprises: described the 3rd root of blade flange is fixedly connected with the 3rd pitch variable bearings flange of described wheel hub.
8. method according to claim 7 is characterized in that, also comprises: regulate the first pitch variable bearings flange of described wheel hub, described the first blade is become the oar operation.
9. method according to claim 7 is characterized in that, also comprises: regulate the second pitch variable bearings flange of described wheel hub, described the second blade is become the oar operation.
10. method according to claim 7 is characterized in that, also comprises: regulate the 3rd pitch variable bearings flange of described wheel hub, described the 3rd blade is become the oar operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365708.8A CN102852722B (en) | 2012-09-27 | 2012-09-27 | Hub displacement device and lifting method for impellers in direct-driven wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210365708.8A CN102852722B (en) | 2012-09-27 | 2012-09-27 | Hub displacement device and lifting method for impellers in direct-driven wind generating set |
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| CN102852722A true CN102852722A (en) | 2013-01-02 |
| CN102852722B CN102852722B (en) | 2014-09-17 |
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Cited By (6)
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| CN103670952A (en) * | 2013-12-13 | 2014-03-26 | 三一集团有限公司 | Transmission device of wind driven generator and wind driven generator |
| CN109973320A (en) * | 2019-04-28 | 2019-07-05 | 中交第一航务工程局有限公司 | A kind of wheel hub rotary tooling for convenient completion draught fan impeller spelling |
| CN110778455A (en) * | 2019-12-11 | 2020-02-11 | 湘电风能有限公司 | Variable pitch connecting structure of wind generating set |
| CN113007010A (en) * | 2021-03-19 | 2021-06-22 | 华仪风能有限公司 | Wind wheel blade installation auxiliary equipment and control method thereof |
| CN113753753A (en) * | 2020-06-02 | 2021-12-07 | 新疆金风科技股份有限公司 | Alignment method, alignment device and wind generating set |
| CN117432574A (en) * | 2023-12-20 | 2024-01-23 | 苏州天顺复合材料科技有限公司 | Wind-powered electricity generation blade is with exempting from to stand up installation fastener |
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