CN105386941A - Wind turbine rotor lock system - Google Patents
Wind turbine rotor lock system Download PDFInfo
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- CN105386941A CN105386941A CN201510433594.XA CN201510433594A CN105386941A CN 105386941 A CN105386941 A CN 105386941A CN 201510433594 A CN201510433594 A CN 201510433594A CN 105386941 A CN105386941 A CN 105386941A
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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 invention relates to a wind turbine rotor lock system for a wind turbine and to a method for operating a wind turbine rotor lock system for a wind turbine comprising a tower, a nacelle and a rotor, where said rotor comprises wind turbine blades and a hub installed at said nacelle at an interface between the rotor and the nacelle, where said interface comprises at least one bearing arrangement - a moment bearing - comprising an inner and an outer bearing part, where the bearing is rigidly connected to a mainframe structure at said nacelle, and to said wind rotor hub for rotatable support of said wind rotor and for transfer of loads from the weight of the wind rotor and from the wind load on the wind rotor, where said wind rotor further comprises a main shaft for transferring rotational torque, generated by the wind on said wind rotor, to a generator, where said wind turbine rotor lock system further comprises one or more locking means.
Description
Technical field
The present invention relates to a kind of wind turbine rotor locking system for wind turbine, wherein said wind turbine at least comprises pylon, be positioned at the cabin of described pylon and be installed on the rotor in described cabin, described rotor comprises at least two panels wind turbine blade and rotor hub, described rotor hub is rotatably installed in the jointing between the rotor in described cabin and cabin, described interface comprises at least one bearing structure, this bearing structure comprises inner bearing part and outer bearing part, at least one bearing parts is rigidly connected to the main frame structure in described cabin, at least another bearing parts is rigidly connected to described wind wheel hub, for rotatably supporting described wind wheel, and for transmit from wind wheel weight load and act on the wind load of wind wheel, described wind wheel also comprise for by transmission of torque to the main shaft of generator, this torque is produced by the wind-force acting on described wind wheel, described wind turbine rotor locking system also comprises one or more locking device.
The invention further relates to the method for a kind of operation for the wind turbine rotor locking system of wind turbine, it realizes by using above-mentioned wind turbine rotor locking system, wherein said wind turbine at least comprises pylon, be positioned at the cabin of described pylon and be installed on the rotor in described cabin, described rotor comprises at least two panels wind turbine blade and rotor hub, described rotor hub is rotatably installed in the jointing between the rotor in described cabin and cabin, described interface comprises at least one bearing structure, this bearing structure comprises inner bearing part and outer bearing part, at least one bearing parts is rigidly connected to the main frame structure in described cabin, at least another bearing parts is rigidly connected to described wind wheel hub, for rotatably supporting described wind wheel, and for transmit from wind wheel weight load and act on the wind load of wind wheel, described wind wheel also comprise for by transmission of torque to the main shaft of generator, this torque is produced by the wind-force acting on described wind wheel, described wind turbine rotor locking system also comprises one or more locking device.
Background technique
As everyone knows, wind turbine has certain for braking and/or lock braking or the locking system of the wind wheel of wind turbine, preferably needs, by fixed for rotor situation, to be fixed in special position in maintenance period or other.Similarly, known system wind turbine single blade being locked in certain tilt position.The present invention relates to the cabin/main frame braking relative to wind turbine and locking wind wheel.Above-mentioned wind wheel can be regarded as the rotor comprising wheel hub and some wind turbine blades, for by wind power transformation for rotate energy.Explain that this reason is because wind turbine also has another rotor usually, i.e. the rotor of generator, has another name called for rotor, and the fixed stator of its next-door neighbour's generator rotates, and generates electricity thus.
A large amount of wind turbine uses gearbox, wind wheel rotation quite at a slow speed to be converted to the more fast rotational of rotor.This wind turbine generally includes the disk brake system be arranged between gearbox and generator, in order that only tackle less torque.Other wind turbines have the braking system before being arranged on gearbox, and therefore it must tackle higher torque, and now rpm is less.Loosen because the gearbox between wind wheel and generator at least exists some, this braking and locking system has some shortcomings.More and more general, on so-called direct-drive wind turbine, wind wheel couples directly to rotor, there is not gearbox.
On main shaft before braking system is arranged at gearbox by such scheme or after gearbox or braking system be arranged on the main shaft of direct-drive wind turbine, main shaft is necessary for firm, can bear active force when braking and locking.
Wind turbine, such as diameter can reach 100 meters, weight can up to such as 50 tonnes.In addition, rotor also has sizable quality, up to 20 tonnes.In order to utilize activation braking and locking system stop and retraining so large quality, a large amount of requirements must be met.If whole piece Transmitted chains, comprise wheel hub, main shaft and generator, have any loosening or too large elasticity, system will wear away quickly and final fracture, thus cause serious problem and increase cost, and inevitably there is a certain amount of this loosening and elasticity.In order to weight reduction---this is permanent subject under discussion in wind turbine industry---how many known braking and locking systems has problems, because these systems are rigidity, it comprises heavy huge rigidity steel axle, so that enough firm to having acceptable hypoelasticity.
From the known a kind of wind wheel lock fixed system of U.S. Patent application document US2010/0232978A1, wherein, the taper lock centering spindle operating some radial direction settings engages with the cone shape hole of the shape complementarity along circumference of hub.This Operation system setting between wind turbine hub and main frame, wherein wheel hub be connected to bearing load and torque, the main shaft of therefore unusual rigidity, described main shaft is connected to gearbox further.A sizable shortcoming of the program is, this system is merely able on multiple diverse locations of locked rotor being allowed in the hole of described shape complementarity.In this case, 12 positions may be only had, mean that rotor is merely able to lock according to the interval of 360/12=30 degree.In addition, the mandrel shown in the literature has suitable problem trend---during joint---itself to be filled in/be locked in the hole of shape complementarity.After completing required operation, this will inevitably have problems, and again must unclamp wind wheel.
From the known another kind of scheme of European patent document EP2381092A2, wherein some locking mandrels axially run relative to the main shaft of wind turbine.Herein, by locked rotor in 8 positions, can mean that rotor is merely able to lock according to the interval of 360/8=45 degree.There is the same problem filling in/lock mandrel in the program.
This above-mentioned two schemes, only there is limited possible position, therefore its rotor must be braked to transfixion, and therefore rotor needs slowly to turn to locked position, and this generally needs to allow rotor rotate up to 30/2=15 degree or 45/2=22.5 degree with any direction.Or required angular adjustment reality can between 30-45 degree.No matter be larger angle smaller angle, all must rotor, and if gearbox, bearing, the main shaft of transmitting torque, carrying wind wheel, generator or other vitals main shaft impaired, need repairing or change, rotary rotor will be very difficult to carry out.
European patent EP 1167755A2 discloses a kind of locking system, and it comprises the gear be arranged on rotor shaft, and wherein radially manually-operable has the locking device of shape complementarity outer surface, engages with the tooth rim of this gear.Electric driving wheel is used for rotor axle, and locking device is accurately alignd with the tooth of gear.If one or more parts damages of Transmitted chains, this will be difficult to carry out.And brake load concentrates on very a limited number of tooth, because this increasing the risk of locking system fault.
Goal of the invention
The object of the invention is to, a kind of wind turbine rotor locking system for wind turbine is provided, wherein this wind wheel can be locked in each position, particularly preferably in when only needing quite low-angle rotation, or after can be used for wind wheel braking to transfixion.
In addition, the object of the invention is to, a kind of wind turbine rotor locking system is provided, it is specially adapted to wind turbine, wherein said wind turbine comprises the main shaft extending to gear or generator from wheel hub, described spindle design, for only to transmit rotating force, is namely only derived from the torque of wind wheel weight or rotor weight, and does not have moment of flexure.This main shaft can comprise such as fibre reinforced composites at least partially or be made up of the metal of any appropriate or other materials.
Summary of the invention
As mentioned above, the present invention relates to a kind of wind turbine rotor locking system for wind turbine, wherein said wind turbine at least comprises pylon, be positioned at the cabin of described pylon and be installed on the rotor in described cabin, described rotor comprises at least two panels wind turbine blade and rotor hub, described rotor hub is rotatably installed in the jointing between the rotor in described cabin and cabin, described interface comprises at least one bearing structure, this bearing structure comprises inner bearing part and outer bearing part, at least one bearing parts is rigidly connected to the main frame structure in described cabin, at least another bearing parts is rigidly connected to described wind wheel hub, for rotatably supporting described wind wheel, and for transmit from wind wheel weight load and act on the wind load of wind wheel, described wind wheel also comprise for by transmission of torque to the main shaft of generator, this torque is produced by the wind-force acting on described wind wheel, described wind turbine rotor locking system also comprises one or more locking device.
The type of above-mentioned bearing structure is in row known " moment bearing ", the all load being wherein derived from weight and wind-force are passed to main frame by described moment bearing, and independent main shaft only bears the spin load being passed to generator from wind turbine rotor by such as gearbox.
Innovation of the present invention is, described wind turbine rotor locking system comprises at least one lock section, described lock section comprises first set interlock, for engaging with the first set shape complementarity locking device being connected to main frame, also comprise the second cover locking device, engage for overlapping shape complementarity locking device be connected to rotor hub second, described lock section comprises at least two cover interlocks, wherein a set of interlock is arranged on a surface of described lock section, another set of interlock be arranged at described lock section another on the surface.
This lock section is arranged between main frame and wheel hub, and the mode locked relative to each other with all parts " fills up gap ", this programme is suitable for, when changing or keep in repair the main shaft such as transmitting torque, locking and keeping wheel hub (and rotor) to go up in position.
This is extraordinary scheme, because main bearing is quite near between the main frame and wheel hub of locking system, therefore between main frame and wheel hub, there is closed tolerance.The part of the rotor hub of active lock can be preferably back stiffening plate, and this back stiffening plate is arranged on rotor hub, and towards main frame or the part towards main frame, the stiffening plate of such as main frame.Another advantage of locking system of the present invention is, at the starting point of Transmitted chains, all parts discussed achieve very solid locking, and only there is very small amount of loosening---if any.
In an embodiment of wind turbine rotor locking system of the present invention, shape complementarity locking device can have the first Young's modulus at least one of them place of rotor hub and main frame, the locking device of lock section can be made up of one of llowing group of materials: metal alloy, plastic material, composite material---such as fibrous composite, wherein said material has the second Young's modulus, and the second Young's modulus is less than the first Young's modulus.The locking device of lock section or at least lock section can be such as made up of aluminium, plastics or fibrous composite, and therefore its Young's modulus is lower than the parts with its complementation.Can realize thus, due in lock section or at least allow to occur slightly being out of shape at the locking device place of lock section, lock section therefore more easy bearing load evenly distributedly.Also shape complementarity locking device can be arranged on rotor hub and/or main frame, the Young's modulus of this rotor hub and/or main frame is less than the Young's modulus of lock section.But more convenient on the locking portion have random variation, because can be changed after the certain number of times of use.The locking mandrel of the method and prior art contrasts, and obviously has many advantages, is not only to engage some mandrels with bearing load, but the brute force having supported rotor each other simply locks by quite a large amount of locking devices.
In another embodiment of wind turbine rotor locking system of the present invention, described wind turbine rotor locking system comprises at least one, be preferably a series of lock section, one of them lock section comprises a set of interlock, for engaging with the complementary locking device of main frame, and comprise another set of interlock, for engaging with the complementary locking device on rotor hub, a lock section relative length is: between the 8-20 degree of 360 degree of all-round length, between 10-18 degree, between 12-15 degree.After locking device and shape complementarity locking device insert, gap between the two can be such as 2 millimeters or less.In fact the shape complementarity locking device of wheel hub stiffening plate such as easily to obtain with the mode manufacturing universal teeth Zhou Xiangtong, or can be made up of the general interior tooth rim being arranged on stiffening plate.And the shape complementarity parts on main frame can comprise tooth rim.Such as, the lock section of 12 degree can comprise such as 4 covers and have the locking device of recess and groove shapes, mean that often overlapping the locking device comprising a recess and a groove is equivalent to 12/4=3 degree, when keeping in repair or before maintenance work, wind wheel lock is scheduled commitment positions, this is a quite high precision.Simple 12 degree of lock sections of such as aluminum significantly simplify operation, because this lock section only nearly weighs greatly 4 kilograms.Aluminium has high strength, is enough to match with the performance of steel.The load balance recess that low elastic modulus (Young's modulus) will improve, and the mean forced had on the parts of low elastic modulus is distributed.This lock section can such as by using water jet cutting or being radium-shinely cut into, and be ready to come into operation after cutting, because do not need to do processing further to lock section.
Such as, its radial height that lock section can have locking device---recess---is 14 millimeters, axial thickness is 35 millimeters and circumferential lengths is 50 millimeters.According to material therefor and required load of bearing, can preferred other sizes.Therefore a lock section is about 400 millimeters, and bandpass is 80-150 millimeter.
Wind turbine rotor locking system of the present invention can comprise at least one lock section, it has the circumferential lengths at rotor hub, and perpendicular to length direction, be positioned at rotor hub thickness axially, two the opposite edges surfaces wherein limited by the thickness of lock section and length comprise the interlock of profile of tooth, wherein lock section and thus locking device be set to install vertically relative to main frame and rotor hub.
Wind turbine rotor locking system of the present invention also can comprise, at least one lock section has the length in rotor hub circumference, also have perpendicular to length direction, be positioned at rotor hub thickness axially, two the opposite edges surfaces wherein limited by thickness and the length of lock section comprise the interlock of profile of tooth, and wherein lock section and locking device are set to radially install relative to main frame and rotor hub.
Therefore, based on particular design, lock section of the present invention can be installed with radial direction vertically.But modal, vertically there is gap between wheel hub and main frame, shown in following illustrated example.
In an embodiment of wind turbine rotor locking system of the present invention, described locking device comprises the recess/tooth with sharpened edge.
In another embodiment of wind turbine rotor locking system of the present invention, described locking device comprises the recess/tooth with round edge.
The shape of recess/tooth will consider the potential break risk because cutting effect causes and cost of production.The shape of locking device, must have multiple design, as long as all parts can " be filled up gap " and complete applicable locking between wheel hub and main frame.
In a distortion of wind turbine rotor locking system of the present invention, described locking device can comprise recess/tooth, and this tooth wherein along edge surface is conical.
Tooth on lock section can be conical, and the inclination of one of them tooth on side, lock section is greater than the inclination of its opposite side.This tooth can also be conical along the width direction of lock section, means that the tooth depth on side, lock section is greater than the tooth depth of opposite side.No matter taper shape how towards, all make single lock section more easily install, because conical tooth will serve as chock, thus more easily compensate the little dislocation of all parts when mounted.
All lock sections can comprise conical tooth/recess, but in fact only needing a lock section has conical tooth, because when installation has the first lock section of conical tooth, the arbitrary little dislocation between rotor with main frame will be alignd.This makes to install other lock section and without the need to any conical tooth.
In another embodiment of wind turbine rotor locking system of the present invention, conical depression/tooth can be comprised at least one of them shape complementarity locking device located of rotor hub and main frame.
The tooth at rotor hub and main frame place can also be conical, and during to make to insert, lock section is guided by conical part.The locking device of main frame and rotor hub all can have conical design, can also only have one of them to have conical design.Lock section can also be that both sides are taper, and can be only taper on a side.One or more sets locking devices of taper or non-tapered and the combination in any of shape complementarity locking device are all feasible.
Wind turbine rotor locking system of the present invention can comprise, this locked rotor system also comprises fixing device, time between shape complementarity locking device lock section being installed on described rotor hub and described main frame, this fixing device be used for one or more lock section to be fixed on rotor hub and main frame at least one of them, such as by following devices, one of them is formed wherein said fixing device: bolt, screw, support.Lock section can be designed to enter bearing inner race by bolt device bolt, such as, utilize three M16 bolts or use fastening piece or the securing means of other any appropriate.
The present invention also comprises the method for a kind of operation for the wind turbine rotor locking system of wind turbine, it realizes by using above-mentioned wind turbine rotor locking system, wherein said wind turbine at least comprises pylon, be positioned at the cabin of described pylon and be installed on the rotor in described cabin, described rotor comprises at least two panels wind turbine blade and rotor hub, described rotor hub is rotatably installed in the jointing between the rotor in described cabin and cabin, described interface comprises at least one bearing structure, this bearing structure comprises inner bearing part and outer bearing part, at least one bearing parts is rigidly connected to the main frame structure in described cabin, at least another bearing parts is rigidly connected to described wind wheel hub, for rotatably supporting described wind wheel, and for transmit from wind wheel weight load and act on the wind load of wind wheel, described wind wheel also comprise for by transmission of torque to the main shaft of generator, this torque is produced by the wind-force acting on described wind wheel, described wind turbine rotor locking system also comprises one or more locking device.
Method of the present invention can at least comprise the following steps:
-stop rotor,
-first set shape complementarity locking device is aimed at the second cover shape complementarity locking device,
-at least one lock section is set, it comprises first set interlock and the second cover interlock,
-the described interlock of described lock section is inserted described first set shape complementarity locking device and second to be overlapped between shape complementarity locking device,
-described lock section is fixed on described main frame and rotor hub one of them.
Easily can insert lock section, such as, by the stiffening plate of rotor hub, interact with rotor hub, interact with main frame or with any device of main frame rigid contact simultaneously.By turning round equipment and the disc brake of rotor, locking device can be aimed at the first lock section is inserted.As mentioned above, by using locking device or the shape complementarity locking device with conical depression or tooth, any little dislocation can be processed.
Method for operating the wind turbine rotor locking system for wind turbine of the present invention, can comprise the following steps: further
-described first set shape complementarity locking device and second is inserted in other lock sections to be overlapped between shape complementarity locking device,
-other lock sections described are fixed on one of them of described main frame and rotor hub.
The solution of the present invention is by using the circumference of lock section at rotor hub and the jointing locking of main frame, this lock section occupies the 5-100% of circumference, but in a preferred embodiment of the invention, use lock section to occupy the girth being less than 90%, 80%, 70%, 60%, 50%, 40%, 30% or 20%.
Such scheme will be used for all wind wheel hubs and be set to be rigidly connected to the system of cabin main frame.This can be, such as, by single-bearing system or duplex bearing system, wheel hub is arranged on the rotor beam of main frame, or wheel hub is directly installed on the bearing interface of main frame.This design previously used, such as so-called ring generator (ringgenerator), wherein there is no main shaft, and the wind turbine of other types is also designed with this axle system, the problem wherein no longer occurring previously described elasticity and loosen.
In addition, this scheme is more and more general, because vibration, dislocation and moment of flexure can not be passed to gearbox and/or generator from rotor and/or main shaft.By bearing is almost set directly between wheel hub and main frame, at described parts---namely achieve very trickle tolerance between wheel hub and main frame, this makes to utilize locking member of the present invention to lock wind wheel and becomes feasible.
As mentioned above, the present invention can be used in wind turbine structure, and this wind turbine constructs the wheel hub having and be arranged on main frame by single-bearing system or duplex bearing system.Up to now, this scheme is mainly used in the comparatively small-scale wind turbines of multikilowatt, because when reaching MW class, stressed and strain can become very large.The wheel hub of wind turbine generally has cast iron to make, and it must bear huge power in megawatt class of turbines, and can significantly be out of shape when running.But can design a kind of wheel hub, it can process load, and jointly can use with one or two bearing arrangement.
Can be used for another design processing high load and distortion, comprise so-called rotor beam, and as mentioned above, wherein wheel hub also can at least but usually supported by two cover bearings.Rotor beam is rigidly connected to cabin main frame, and usually outstanding from wheel hub, bears the load of wind wheel thus, and bears the power acting on wind wheel.Thus, the transmission of torque towards generator is undertaken by main shaft, and this spindle design for only to transmit rotating force, and does not carry wind wheel or bears the moment of flexure being derived from described wind wheel.
Accompanying drawing explanation
The embodiment of the present invention will only with exemplary forms, and is described with reference to following accompanying drawing, wherein:
Fig. 1 shows three blade wind turbine.
Fig. 2 shows main frame and the rotor hub of moment bearing type.
Fig. 3 shows the cross section of main frame and rotor hub.
Fig. 4 shows the parts of locking system.
Fig. 5 shows the first lock section.
Fig. 6 shows the second lock section.
Fig. 7 shows the 3rd lock section.
Hereinafter, accompanying drawing will be described one by one, and all parts shown in different accompanying drawing and position will be marked with identical sequence number.The all parts not indicated in certain figures all must be discussed with position together with this certain figures.
Position number list
1. wind turbine
2. pylon
3. ground
4. cabin
5. wind wheel
6. rotor hub
7. blade
8. Yawing mechanism
9. main frame
10. moment bearing
11. bearing inner races
12. bearing outer rings
13. back stiffening plates
14. main shafts
15. narrow slits
16. screws
17. lock sections
18. first set locking devices
19. second cover locking devices
20. first set shape complementarity locking devices
21. second cover shape complementarity locking devices
Embodiment
Fig. 1 shows three blade wind turbine 1, and wherein wind turbine 1 comprises the pylon 2 stretched out from ground foundation 3, and there is cabin 4 on described pylon 2 top.In the one end in cabin 4, be provided with wind wheel 5.Wind wheel 5 comprises rotor hub 6 and three blades 7, and in the case, blade 7 is so-called feather blade.Between pylon 2 and cabin 4, be provided with Yawing mechanism 8 (invisible in this figure), it makes cabin 4 rotate relative to pylon 2, so as according to wind direction make wind wheel 5 be directed to specifically towards.
Fig. 2 shows the main frame 9 in cabin 4, and wherein visible Yawing mechanism 8 is positioned at the lower limb of main frame 9, and rotor hub 6 is arranged on moment bearing 10.Shown moment bearing 10 simplifies very much, if be shown specifically, will be provided with some rollers between bearing inner race 11 and bearing outer ring 12---and such roller bearing is well-known.At this, bearing inner race 11 is installed on rotor hub 6, and bearing outer ring 12 is installed on main frame 9.In addition, at bearing inner race 11, back stiffening plate 13 is installed.In the case, the main shaft 14 of stiffening plate carrying in described back for transmitting the torque being derived from wind wheel 5.The seam 15 be rather narrow can be seen between main frame 9 and back stiffening plate 13.
Fig. 3 shows main frame 9 and is strengthening the cross section on the interface of plate 13 with rotor hub 6/ back.At main frame 9, visible some screws 16, and also show some screws 16 at back stiffening plate.All these screws 16 are for being fastened to aforesaid moment bearing 10 by all parts.Between main frame 9 and back stiffening plate 13, the seam 15 be rather narrow can be seen, some lock sections 17 are wherein installed.Lock section 17 comprises first set locking device 18 and the second cover locking device 19, and described every suit locking device 18,19 and first set shape complementarity locking device 20 and second overlap shape complementarity locking device 21 and interact.Thus, the rotation location of back stiffening plate 13 is fixed in these lock sections 17 relative to main frame 9.In the outer rim of back stiffening plate 13, visible some locking devices (recess/tooth) 20,21, in the interface inner edge of main frame 9, also show some locking devices.As shown in the figure, lock section 17 occupies the girth of the about 40%-50% of narrow slit 15, and this far exceedes the degree enough realizing secure lock usually.
Fig. 4 shows the locking system parts shown in Fig. 3, but this sentences different angles and illustrates, and only a part is shown.At this, visible lock section 17, before being mounted or being inserted into narrow slit 15, is positioned at the front of narrow slit 15.This accompanying drawing very clearly show, and have locked position feasible in a large number to mean and compare other locking systems, this system has highi degree of accuracy, and other locking systems such as can have 2-8 feasible location.
Fig. 5 shows the first lock section 17, and wherein visible first set locking device 18 and the second cover locking device 19 have sharpened edge design.
Fig. 6 shows the second lock section 17 ', and wherein visible first set locking device 18 and the second cover locking device 19 have round edge design.
Fig. 7 shows the 3rd lock section 17 ", wherein visible first set locking device 18 and the second cover locking device 19 have the design of taper round edge.
In Fig. 5,6,7, the example of visible different designs.But also as mentioned above, for technician, for meeting the demand of particular case, locking device 18,19,20,21 obviously can have the shape and size of any appropriate.
The present invention is not limited to embodiment described herein, and not departing under the scope of the present invention described by the claims in the present invention, can modify or be out of shape.
Claims (12)
1. the wind turbine rotor locking system for wind turbine (1), wherein said wind turbine (1) at least comprises pylon (2), be positioned at the cabin (4) of described pylon (2) and be installed on the rotor (5) in described cabin, wherein said rotor (5) comprises at least two panels wind turbine blade (7) and rotor hub (6), described rotor hub (6) is rotatably installed in the jointing between the rotor (5) of described cabin (4) and cabin (4), described interface comprises at least one bearing structure, described bearing structure comprises inner bearing part and outer bearing part, wherein at least one bearing parts is rigidly connected to main frame (9) structure in described cabin, at least another bearing parts is rigidly connected to described wind wheel hub (6), for rotatably supporting described wind wheel (5), and for transmission from the load of wind wheel (5) weight and the wind load acting on wind wheel (5), described wind wheel (5) also comprise for by transmission of torque to the main shaft (14) of generator, described torque is produced by the wind-force acting on described wind wheel (5), described wind turbine rotor locking system also comprises one or more locking device, it is characterized in that, described wind turbine rotor locking system comprises at least one lock section (17), described lock section (17) comprises first set interlock (18), for engaging with the first set shape complementarity locking device (20) being connected to main frame (9), also comprise the second cover interlock (19), engage for overlapping shape complementarity locking device (21) be connected to rotor hub (6) second, described lock section (17) comprises at least two cover interlocks (18, 19), wherein a set of interlock (18) is arranged on a surface of described lock section (17), another set of interlock (19) be arranged at described lock section (17) another on the surface.
2. wind turbine rotor locking system according to claim 1, it is characterized in that, described shape complementarity locking device (20,21) can have the first Young's modulus at rotor hub (6) and one of them place of main frame (9), the locking device (18,19) of described lock section (17) can be made up of one of llowing group of materials: alloy, plastic material, composite material, wherein said material has the second Young's modulus, and described second Young's modulus is less than described first Young's modulus.
3. wind turbine rotor locking system according to claim 1, it is characterized in that, described wind turbine rotor locking system comprises at least one, be preferably a series of lock section (17), one of them lock section (17) comprises a set of interlock (18), for engaging with the complementary locking device (20) of main frame (9), and comprise another set of interlock (19), for engaging with the complementary locking device (21) on rotor hub (6), the relative length of one of them lock section (17) is: between the 8-20 degree of 360 degree of all-round length, between 10-18 degree, between 12-15 degree.
4. wind turbine rotor locking system according to claim 1, it is characterized in that, described at least one lock section (17) has the circumferential lengths of rotor hub (6), and perpendicular to length direction, be positioned at rotor hub (6) thickness axially, two the opposite edges surfaces wherein limited by thickness and the length of lock section (17) comprise the interlock (18 of profile of tooth, 19), described lock section (17) and thus locking device (18, 19) be set to install vertically relative to main frame (9) and rotor hub (6).
5. wind turbine rotor locking system according to claim 1, it is characterized in that, described at least one lock section (17) has the length of rotor hub (6) circumference, also have perpendicular to length direction, be positioned at rotor hub (6) thickness axially, two the opposite edges surfaces wherein limited by thickness and the length of lock section (17) comprise the interlock (18 of profile of tooth, 19), described lock section (17) and thus locking device (18, 19) be set to radially install relative to main frame (9) and rotor hub (6).
6. wind turbine rotor locking system according to claim 1, is characterized in that, described locking device (18,19) comprises the recess/tooth with sharpened edge.
7. wind turbine rotor locking system according to claim 1, is characterized in that, described locking device (18,19) comprises the recess/tooth with round edge.
8. wind turbine rotor locking system according to claim 1, is characterized in that, described locking device (18,19) comprises and is shaped to conical recess/tooth along edge surface.
9. wind turbine rotor locking system according to claim 1, it is characterized in that, conical depression/tooth can be comprised at rotor hub (6) and at least one of them shape complementarity locking device located (20,21) of main frame (9).
10. wind turbine rotor locking system according to claim 1, it is characterized in that, described wind turbine rotor locking system also comprises fixing device, when described lock section (17) are installed on the shape complementarity locking device (20 of described rotor hub (6) and described main frame (9), 21) time between, described fixing device be used for one or more lock section (17) be fixed to rotor hub (6) and main frame (9) at least one of them, wherein said fixing device is such as by bolt, screw, one of them of support is formed.
11. by using the wind turbine rotor locking system according to any one of claim 1-10, operation is used for the method for the wind turbine rotor locking system of wind turbine (1), wherein said wind turbine (1) at least comprises pylon (2), be positioned at the cabin (4) of described pylon (2) and be installed on the rotor (5) of described cabin (4), described rotor (5) comprises at least two panels wind turbine blade (7) and rotor hub (6), described rotor hub (6) is rotatably installed in the jointing between the rotor (5) of described cabin (4) and cabin (4), described interface comprises at least one bearing structure, described bearing structure comprises inner bearing part and outer bearing part, at least one bearing parts is rigidly connected to main frame (9) structure of described cabin (4), at least another bearing parts is rigidly connected to described wind wheel hub (6), for rotatably supporting described wind wheel (5), and for transmission from the load of wind wheel (5) weight and the wind load acting on wind wheel (5), described wind wheel (5) also comprise for by transmission of torque to the main shaft (14) of generator, described torque is produced by the wind-force acting on described wind wheel (5), described wind turbine rotor locking system also comprises one or more locking device, it is characterized in that, described method at least comprises the following steps:
-stop rotor (5),
-first set shape complementarity locking device (20) is aimed at the second cover shape complementarity locking device (21),
-at least one lock section (17) is set, it comprises first set interlock (18) and the second cover interlock (19),
-the described interlock (18,19) of described lock section (17) is inserted described first set shape complementarity locking device (20) and second to be overlapped between shape complementarity locking device (21),
-described lock section (17) are fixed to one of them of described main frame (9) and rotor hub (6).
12. operations according to claim 11 are used for the method for the wind turbine rotor locking system of wind turbine, and it is characterized in that, described method comprises the following steps: further
-other lock sections (17) are inserted described first set shape complementarity locking device (20) and second to be overlapped between shape complementarity locking device (21),
-described other lock sections (17) are fixed to one of them of described main frame (9) and rotor hub (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA201470534 | 2014-09-02 | ||
| DK201470534A DK178152B1 (en) | 2014-09-02 | 2014-09-02 | Wind turbine rotor lock system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105386941A true CN105386941A (en) | 2016-03-09 |
| CN105386941B CN105386941B (en) | 2018-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510433594.XA Active CN105386941B (en) | 2014-09-02 | 2015-07-22 | wind turbine rotor locking system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105386941B (en) |
| DK (1) | DK178152B1 (en) |
Cited By (6)
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| CN109563808A (en) * | 2016-06-07 | 2019-04-02 | 远景能源（江苏）有限公司 | Wind turbine and its method with locked rotor system |
| CN110088465A (en) * | 2016-12-14 | 2019-08-02 | 乌本产权有限公司 | Retaining device for rotor and method for wind energy plant |
| CN112283020A (en) * | 2020-10-29 | 2021-01-29 | 上海电气风电集团股份有限公司 | Wind wheel locking device and wind generating set comprising same |
| EP3869033A1 (en) | 2020-02-20 | 2021-08-25 | Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | Locking system for locking the main shaft of a wind turbine and wind turbine |
| CN114483491A (en) * | 2021-12-16 | 2022-05-13 | 西安中车永电捷力风能有限公司 | Safety interlocking device for direct-driven wind driven generator |
| US11384740B2 (en) | 2019-10-15 | 2022-07-12 | General Electric Company | System and method for locking of a rotor of a wind turbine during extended maintenance |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220397095A1 (en) * | 2021-06-09 | 2022-12-15 | General Electric Company | Hub-shaft bolted-joint connection of a wind turbine |
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Also Published As
| Publication number | Publication date |
|---|---|
| DK178152B1 (en) | 2015-07-06 |
| CN105386941B (en) | 2018-11-16 |
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Address after: Shen Gang street of Jiangyin city in Jiangsu province 214443 Wuxi city Shen Zhuang Road No. 3 Patentee after: Vision Energy Co.,Ltd. Address before: Shen Gang street of Jiangyin city in Jiangsu province 214443 Wuxi city Shen Zhuang Road No. 3 Patentee before: Envision Energy (Denmark) APS |
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