CN103644082A - Wind wheel locking device of megawatt-level wind driven generator - Google Patents
Wind wheel locking device of megawatt-level wind driven generator Download PDFInfo
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- CN103644082A CN103644082A CN201310567865.1A CN201310567865A CN103644082A CN 103644082 A CN103644082 A CN 103644082A CN 201310567865 A CN201310567865 A CN 201310567865A CN 103644082 A CN103644082 A CN 103644082A
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Abstract
The invention provides a wind wheel locking device of a megawatt-level wind driven generator, and belongs to the technical field of wind power generation. The wind wheel locking device of the megawatt-level wind driven generator comprises a wind wheel locking mechanism, a displacement sensing mechanism and a control unit, wherein the displacement sensing mechanism exactly faces the wind wheel locking mechanism, is connected with the control unit and outputs aligning signals, and the control unit is connected with the wind wheel locking mechanism and outputs driving electrical levels according to the aligning signals to drive a main shaft to rotate to achieve the centering and the starting of the wind wheel locking mechanism. According to the wind wheel locking device of the megawatt-level wind driven generator, through the modification of a wind wheel locking disc, the area of the main shaft entering a manhole of a hub is enlarged, and thus corresponding weight and cost are reduced; due to the three-section type layout of the wind wheel locking disc, the matching positions of the wind wheel locking disc and blades are used for ensuring the effect that a wind wheel is located at a position with the best angle under any locking condition of the wind wheel, and thus the load and torque borne by the system are relatively even; the locking movement of locking pins to the wind wheel locking disc is achieved by using a hydraulic connecting rod mechanism and a main shaft position sensor, and thus the position aligning efficiency of locking holes is improved.
Description
Technical field
What the present invention relates to is a kind of device of technical field of wind power generation, specifically a kind of MW class wind turbine wind wheel locking device.
Background technique
The common impeller locking device of wind power generating set, adopts twin-lock rationed marketing at present, common mechanical type (adopting the drive mechanism of screw thread), and troublesome poeration, higher to hole required precision, also higher to operator's requirement, poor reliability.The single hydraulic lock pin that part MW class wind turbine group adopts, although improved hole precision, simplified operation, but due to stop pin and piston integral type, the microvibration load of wind wheel, capital causes the vibration displacement of lock pin in lockhole, thereby affect piston in the sealing of oil cylinder, leak, the accuracy of manufacturing of this lock pin is had relatively high expectations in addition, complex structure is higher for the seal request of oil cylinder.Appeal two kinds of wind wheel locking devices, locking all needs the artificial jiggering wind wheel angle of going during wind wheel, to reach lockhole position, even during so random lock wind wheel, can not guarantee the best angle position of wind wheel, can not guarantee that each lockhole is under lock state, personnel can enter the access opening of wind wheel.Each lock wind wheel, all needs to drop into a large amount of human and material resources, expends a large amount of time.Along with the raising of wind power generating set single-machine capacity, wind wheel is also thereupon more and more heavier, by manpower, removes jiggering wind wheel, will become more and more difficult.
Through the retrieval of prior art is found, Chinese patent literature CN102003352A Shen Qing Publication day: 2011.04.06, a kind of Wind wheel locking device for wind generating is disclosed, comprise wind wheel lock pin and wind wheel lock collar, in described wind wheel lock collar, be provided with the hole clipping that slips into or skid off when wind wheel lock pin enters lock or moves back lock, also comprise with wind wheel lock pin and drive and be connected and can drive wind wheel lock pin to enter to lock or move back the power plant of lock and for controlling the control gear of power plant.But the piston of this technology hydraulic jack is directly connected with lock pin, from the vibration of wind wheel lock collar, will impact the sealing of hydraulic jack, cause oil cylinder to leak or pressure transient; During lockhole, need to manually go to find the position, hole of wind wheel lock collar, jiggering wind wheel, low to hole precision, wind wheel position is random, cannot guarantee to enter the optimum position of access opening, the wind power generating set of the larger single-machine capacity of inapplicable MW rank.
Chinese patent literature notice of authorization number: CN202091130U, notice of authorization day: 2011.12.28, disclose a kind of wind wheel locking device, it has comprised base, mechanical pins, rocking bar, is provided with a hole on base, mechanical pins arranges in present hole, mechanical pins front end correspondence the positioning hole of main shaft orientation dish, wherein, is provided with a bearing on base, one end of rocking bar and bearing connect, and mechanical pins end is connected to rocking bar medium position.The utility model, installs a kind of leverage at the rear portion of mechanical pins, and a people pulls rocking bar, can easily complete the action of spindle lock and relieving.But this Technology Need is realized into lock and is moved back lock by artificial, and workload is large, during due to lockhole from wind wheel very close to, increased risk factor; During lockhole, need to manually go to find the position, hole of wind wheel lock collar, artificial jiggering wind wheel, low to hole precision, wind wheel position is random, cannot guarantee to enter the optimum position of access opening, the wind power generating set of the larger single-machine capacity of inapplicable MW rank.
Summary of the invention
The present invention is directed to prior art above shortcomings, propose a kind of MW class wind turbine wind wheel locking device, by the remodeling to wind wheel lock price fixing, expanded the area that is entered the manhole of wheel hub by main shaft, reduce corresponding weight and cost; Due to the three-clove style layout of wind wheel lock price fixing, utilize the matched position of itself and blade, to guarantee the in the situation that of any locking wind wheel, wind wheel is all in best angular orientation, and load and moment of torsion that system is born are comparatively even; Utilize hydraulic connecting rod mechanism and main spindle's sensor to realize the lock out action of stop pin to wind wheel lock price fixing, improved the contraposition efficiency of lockhole.
The present invention is achieved by the following technical solutions, the present invention includes: wind wheel locking framework, displacement sensor mechanism and control unit, wherein: displacement sensor mechanism is connected over against wind wheel locking framework and with control unit and exports registration signal, control unit is connected with wind wheel locking framework and rotates to realize centering and the startup with wind wheel locking framework according to registration signal output drive level drive main spindle.
Described wind wheel locking framework comprises: wind wheel lock price fixing, stop pin, linkage mechanism and hydraulic system with hydraulic jack, wherein: stop pin is positioned at mainframe internal holes and end is connected with the first end of linkage mechanism, the other end of stop pin contacts with wind wheel lock price fixing, the second end of bar linkage structure is connected with frame and hydraulic system respectively with the 3rd end, wind wheel lock price fixing connects on wind wheel and rotor shaft, in the peripheral circumferential of this wind wheel lock price fixing, average mark is furnished with three fixed lobes, uniform two conical bores in each fixed lobes, thereby insert pinning wind wheel in conical bore by described stop pin.
Described linkage mechanism is three-link mechanism, specifically comprise: hydraulic jack, cylinder rod, dwang and pull lever, wherein: one end of hydraulic jack is rotated and is arranged in frame, the two ends of cylinder rod are connected with dwang with the piston of hydraulic jack respectively, one end of pull lever is connected with described stop pin, the other end is connected with the middle part of dwang, and the oil inlet end of hydraulic jack is connected with hydraulic system respectively with oil outlet end.
Described displacement sensor mechanism comprises: optical sensor, approach switch, wherein: optical sensor is positioned at bearing fan and is connected with control unit and exports registration signal, position limit switch is connected in mutually and receives after registration signal with wind wheel locking framework, the locking and unlocking state of judgement wind wheel locking framework to wind wheel.
Technique effect
Compared with prior art, improvement advantage of the present invention is: wind wheel lock price fixing is triangle lobe formula structure, every lobe is consistent with the angle of each blade of wind wheel, and be furnished with respectively two wind wheel lockholes, as long as impeller locking device is chosen any one lockhole, pin wind wheel, wind wheel all the time in a blade vertically down, keep the angular orientation of wind wheel in equilibrium position, and it is maximum to guarantee to enter the space of wind wheel access opening, and do not need artificial to go for hole, to hole.Adopt hydraulic driving, electromagnetic valve, linkage mechanism, single wind wheel lock.Highi degree of accuracy speed probe and control unit on rotor shaft, wind wheel position is accurately located, calculate the angle of swing of wind wheel, drive motor rotor driven axial adjustment wind wheel position, thereby make wind wheel turn to lockhole position, realize the object that automatically locks wind wheel.The wind wheel lock price fixing of triangle lobe formula structure, two lockholes that distribute on every lobe, lockhole can guarantee that people hole site is maximum arbitrarily.Hydraulic system, by electromagnetic valve cylinder action, promotes linkage mechanism, thereby drives wind wheel lock, locking or release.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is wind wheel locking structure schematic diagram;
Fig. 3 is wind wheel lock price fixing schematic diagram;
Fig. 4 is wind wheel lock rationed marketing schematic diagram;
Fig. 5 is that embodiment controls schematic diagram;
In figure: 0 wind wheel, 1 wind wheel lock price fixing, 2 rotating speed alignment sensors, 3 wind wheel locking frameworks, 4 wind wheel lock rationed marketings, 5 hydraulic jack bearings, 6 straight pins, 7 hydraulic jacks, 8 cylinder rods, 9 second straight pins, 10 dwangs, 11 dwang bearings, 12 pull lever, 13 three cylindrical pins, 14 first approach switchs, 15 second approach switchs, 16 hydraulic systems, 17 hydraulic-pressure pumps, 18 hand pumps, the normally closed solenoid directional control valve of 19 2/2-way, 20, 21 two-bit triplet solenoid directional control valves, 22 dual hydraulic control one-way valves, 23 rotor shafts, 24Y font indicates, 25 lockholes, 26 fixed lobes, 27 first detect groove, 28 second detect groove, 29 control units.
Embodiment
Below embodiments of the invention are elaborated, the present embodiment is implemented take technical solution of the present invention under prerequisite, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, in the present embodiment, relate to and comprising: wind wheel 0, wind wheel lock price fixing 1, rotating speed alignment sensor 2, wind wheel locking framework 3, control unit 29, wherein: wind wheel is lock object for locking 0, the wind wheel lock price fixing 1 rotating speed alignment sensor 2 that is connected with wind wheel 0 judges the residing position of wind wheel by optical signalling, control unit 11 is according to optical signalling output drive signal, drive wind wheel rotation to the position that needs locking, control unit 29 sends wind wheel registration signal, drive actuator's wind wheel locking framework 11, the object of reality locking wind wheel.
Described wind wheel locking framework 3 comprises: wind wheel lock rationed marketing 4, hydraulic jack bearing 5, the first straight pin 6, hydraulic jack 7, cylinder rod 8, the second straight pin 9, dwang 10, dwang bearing 11, pull lever 12, three cylindrical pin 13, the first approach switch 14, the second approach switch 15 and hydraulic system 16, wherein: stop pin 4 is positioned at mainframe internal holes, can in hole, endwisely slip, the logical three cylindrical pin 13 of end is connected with pull lever 12; The other end of stop pin 2 is near described wind wheel lock price fixing 1, and wind wheel 0 agrees with by its lockhole 25 mutually at lock state, and hydraulic jack bearing 5, the logical bolt of dwang bearing 11 are fastened on mainframe; Hydraulic jack 7 leading portions are connected with hydraulic jack bearing 5 by the first straight pin 6, the other end is connected with cylinder rod 8 by piston, cylinder rod 8 is connected with dwang 10 by the second straight pin 9, dwang 10 neutral positions are connected with pull lever 12 by three cylindrical pin 13, the other end is connected with dwang bearing 11 by the second straight pin 9, forms three-link mechanism; The oil inlet end of hydraulic jack 7 is connected with hydraulic system 16 respectively with oil outlet end.
Described three-link mechanism wind wheel locking framework is subject to oil pressure and promotes the piston of hydraulic jack 7 after hydraulic system 16 is obtained the signal that centering completes, by hydraulic jack 5, drive and utilize planar linkage principle to promote wind wheel lock rationed marketing 4 and carve the locking that agrees with of closing with the arbitrary lockhole 26 on wind wheel lock price fixing 1, thereby significantly reduce the driving force that action needs.
Described hydraulic system 16 comprises: for the normally closed solenoid directional control valve 19 of hydraulic- pressure pump 17,2/2-way, two-bit triplet solenoid directional control valve 20,21, the Pilot operated check valve 22 of pressure source are provided, wherein: the normally closed solenoid directional control valve 19 of 2/2-way is connected with staggered interlocking of two-bit triplet solenoid directional control valve 20,21 oil inlet ends with the oil outlet end of described hydraulic-pressure pump 17 respectively, the oil inlet end end of the first two-bit triplet solenoid directional control valve 20 is connected with normally closed solenoid directional control valve 19 oil outlet ends of 2/2-way, and oil outlet end is connected with Pilot operated check valve 22; The oil inlet end end of the second two-bit triplet solenoid directional control valve 21 is connected with normally closed solenoid directional control valve 19 oil outlet ends of 2/2-way, and oil outlet end is connected with Pilot operated check valve 22; One end of two Pilot operated check valves 22 is connected with two-bit triplet solenoid directional control valve 21,22 oil outlet ends, and the other end is connected into and out of hydraulic fluid port with hydraulic jack 7, forms the interlocking loop of hydraulic system 16.
The output terminal of the normally closed solenoid directional control valve 19 of described 2/2-way is provided with hand pump 18, in power-off or maintenance etc. in emergency circumstances, can provide pressure source for system by manually-operable.
The built-in one-way valve of the normally closed solenoid directional control valve 19 of described 2/2-way, flows backwards for hydraulic system after preventing build-up pressure, is the normally closed solenoid directional control valve of 2/2-way afterwards, band manual operation function.
As shown in Figure 3, the gap of the fixed lobes 25 on described wind wheel lock price fixing 1 is provided with for entering the access opening of wheel hub.
Described wind wheel lock price fixing 1 is provided with Y-shaped sign 24, for can reflect the residing angular orientation of Wind wheel paddle under any state.
Described Y-shaped sign 24 and described lockhole 26 each three groups and be crisscross arranged, every group of lockhole 26 or sign 24 are two.Y circumferencial direction rotates three lucky blades, for example ought observe Y for this state be that three blades of wind wheel are also in corresponding position.
Described control unit 29 comprises: rotating speed alignment sensor 2, the first approach switch 14, the second approach switch 15, wherein: the first approach switch 14 outputs signal to control unit 29 for judging that whether described wind wheel lock rationed marketing 4 is in released state; Rotating speed alignment sensor 2 for determine the position of described wind wheel 0 feedback signal to described control unit 29 for calculating the actual deviation with described wind wheel position of described wind wheel 0; The second approach switch 15 outputs signal to described control unit 29 for judging whether described wind wheel lock rationed marketing 4 arrives lock state.
As shown in Figure 4, for the local enlarged diagram of stop pin 4, on this stop pin 4, be provided with successively the first detection groove 27, second and detect groove 28, wherein: detect pitch of grooves 135mm, groove depth 5mm, described the first approach switch 14 and the second approach switch 15 detection trigger signal when groove depth position being detected.
As shown in Figure 5, when needs lock, first by rotating speed alignment sensor 2, determine the position of described wind wheel 0, feed back signal to control unit 29, calculating described wind wheel 0 actual is the deviation with described wind wheel position, control unit 29 is according to the positional deviation value calculating, drive plate vehicle motor, wind wheel 0 is reached after locked position, pressure arrives described hydraulic jack 7 through hydraulic system 16, under the effect of pressure, described hydraulic jack 7 pistons are moved to the left, piston right side back pressure, pressure refluxes through the first two-bit triplet solenoid directional control valve 20, promote described cylinder rod 8, dwang 10, pull lever 12 is rotated, thereby promote described wind wheel lock rationed marketing 4 mobile stretching out to the left, locking wind wheel, by the second approach switch 15, detect the second detection groove 28 again and judge whether stop pin 4 puts in place.
When release wind wheel lock, pressure arrives described hydraulic jack 7 through hydraulic system 16, under the effect of pressure, described hydraulic jack 7 pistons move right, piston left side back pressure, pressure refluxes through the second two-bit triplet solenoid directional control valve 21, promotes described cylinder rod 8, dwang 10, pull lever 12 rotations, thereby promote described wind wheel lock rationed marketing 4 mobile retraction to the right, release wind wheel.
Claims (10)
1. a MW class wind turbine wind wheel locking device, it is characterized in that, comprise: wind wheel locking framework, displacement sensor mechanism and control unit, wherein: displacement sensor mechanism is connected over against wind wheel locking framework and with control unit and exports registration signal, control unit is connected with wind wheel locking framework and rotates to realize centering and the startup with wind wheel locking framework according to registration signal output drive level drive main spindle;
Described wind wheel locking framework comprises: wind wheel lock price fixing, stop pin, linkage mechanism and hydraulic system with hydraulic jack, wherein: stop pin is positioned at mainframe internal holes and end is connected with the first end of linkage mechanism, the other end of stop pin contacts with wind wheel lock price fixing, the second end of bar linkage structure is connected with frame and hydraulic system respectively with the 3rd end, wind wheel lock price fixing connects on wind wheel and rotor shaft, in the peripheral circumferential of this wind wheel lock price fixing, average mark is furnished with three fixed lobes, uniform two conical bores in each fixed lobes, thereby insert pinning wind wheel in conical bore by described stop pin.
2. MW class wind turbine wind wheel locking device according to claim 1, it is characterized in that, described linkage mechanism is three-link mechanism, specifically comprise: hydraulic jack, cylinder rod, dwang and pull lever, wherein: one end of hydraulic jack is rotated and is arranged in frame, the two ends of cylinder rod are connected with dwang with the piston of hydraulic jack respectively, one end of pull lever is connected with described stop pin, the other end is connected with the middle part of dwang, and the oil inlet end of hydraulic jack is connected with hydraulic system respectively with oil outlet end.
3. MW class wind turbine wind wheel locking device according to claim 2, it is characterized in that, described linkage mechanism is subject to oil and backs down hydraulic jack after hydraulic system is obtained the signal that centering completes, and drives and utilizes lever principle to promote stop pin carve and lock coordinating of closing with the arbitrary lockhole on wind wheel lock price fixing by hydraulic jack.
4. MW class wind turbine wind wheel locking device according to claim 2, it is characterized in that, described hydraulic system comprises: for the hydraulic-pressure pump of pressure source is provided, the normally closed solenoid directional control valve of 2/2-way, two-bit triplet solenoid directional control valve, Pilot operated check valve, wherein: the normally closed solenoid directional control valve of 2/2-way respectively with oil outlet end and the two-bit triplet solenoid directional control valve of described hydraulic-pressure pump, the staggered interlocking of oil inlet end is connected, the oil inlet end end of the first two-bit triplet solenoid directional control valve is connected with the normally closed solenoid directional control valve oil outlet end of 2/2-way, oil outlet end is connected with Pilot operated check valve, the oil inlet end end of the second two-bit triplet solenoid directional control valve is connected with the normally closed solenoid directional control valve oil outlet end of 2/2-way, and oil outlet end is connected with Pilot operated check valve, one end of two Pilot operated check valves is connected with two-bit triplet solenoid directional control valve, oil outlet end, and the other end is connected into and out of hydraulic fluid port with hydraulic jack, forms the interlocking loop of hydraulic system.
5. MW class wind turbine wind wheel locking device according to claim 1, it is characterized in that, described displacement sensor mechanism comprises: optical sensor and approach switch, wherein: optical sensor is positioned at bearing fan and is connected with control unit and exports registration signal, position limit switch is connected in mutually and receives after registration signal with wind wheel locking framework, the locking and unlocking state of judgement wind wheel locking framework to wind wheel.
6. the MW class wind turbine wind wheel locking device of stating according to claim 4, it is characterized in that, the output terminal of the described normally closed solenoid directional control valve of 2/2-way is provided with hand pump, in power-off or maintenance etc. in emergency circumstances, can provide pressure source for system by manually-operable.
7. MW class wind turbine wind wheel locking device according to claim 4, it is characterized in that the built-in one-way valve of the normally closed solenoid directional control valve of described 2/2-way flows backwards for hydraulic system after preventing build-up pressure, be the normally closed solenoid directional control valve of 2/2-way afterwards, band manual operation function.
8. MW class wind turbine wind wheel locking device according to claim 1, it is characterized in that, described wind wheel lock price fixing is provided with Y-shaped sign, this Y-shaped sign is with each three groups of described lockholes and be crisscross arranged, and every group of lockhole or sign are two for can reflect the residing angular orientation of Wind wheel paddle under any state.
9. MW class wind turbine wind wheel locking device according to claim 5, it is characterized in that, on described stop pin, be provided with successively the first detection groove, second and detect groove, wherein: detect pitch of grooves 135mm, groove depth 5mm, the first approach switch and the second approach switch detection trigger signal when groove depth position being detected.
10. MW class wind turbine wind wheel locking device according to claim 1, it is characterized in that, described control unit comprises: signal amplification module and execution judge module, wherein: signal amplification module amplifies the registration signal from displacement sensing mechanism and analog-to-digital conversion is to export execution judge module to after digital signal, when needs lock, first by rotating speed alignment sensor, determine the position of described wind wheel, feed back signal to control unit, calculating described wind wheel actual is the deviation with described wind wheel position, control unit is according to the positional deviation value calculating, drive plate vehicle motor, wind wheel is reached after locked position, pressure arrives described hydraulic jack through hydraulic system, under the effect of pressure, described hydraulic cylinder piston is moved to the left, piston right side back pressure, pressure refluxes through the first two-bit triplet solenoid directional control valve, promote described cylinder rod, dwang, pull lever is rotated, thereby promote described wind wheel lock rationed marketing mobile stretching out to the left, locking wind wheel, by the second approach switch, detect the second detection groove again and judge whether stop pin puts in place, when release wind wheel lock, pressure arrives described hydraulic jack through hydraulic system, under the effect of pressure, described hydraulic cylinder piston moves right, piston left side back pressure, pressure refluxes through the second two-bit triplet solenoid directional control valve, promotes described cylinder rod, dwang, pull lever rotation, thereby promote described wind wheel lock rationed marketing mobile retraction to the right, release wind wheel.
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| CN201310567865.1A CN103644082B (en) | 2013-11-14 | 2013-11-14 | MW class wind turbine wind wheel locking device |
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| CN201310567865.1A CN103644082B (en) | 2013-11-14 | 2013-11-14 | MW class wind turbine wind wheel locking device |
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Cited By (10)
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| CN106762443A (en) * | 2016-12-30 | 2017-05-31 | 江苏金风科技有限公司 | For the impeller assistant locking apparatus and mounting method for blade of directly driven wind-powered unit |
| CN106988968A (en) * | 2017-03-08 | 2017-07-28 | 浙江大学 | Wind power plant wind wheel mechanical lock is to aperture apparatus |
| CN108287050A (en) * | 2017-12-27 | 2018-07-17 | 北京空间机电研究所 | A kind of rigid mechanical locking mechanism and lock or unlock method |
| CN109973318A (en) * | 2017-12-28 | 2019-07-05 | 江苏金风科技有限公司 | The control system and method for generator amature locking pin |
| CN109973327A (en) * | 2017-12-28 | 2019-07-05 | 江苏金风科技有限公司 | The self checking method and device of generator amature hydraulic control cranking system |
| CN110446854A (en) * | 2017-04-07 | 2019-11-12 | 艾德温股份有限公司 | Locked rotor system |
| CN110939671A (en) * | 2019-12-05 | 2020-03-31 | 贵州凯星液力传动机械有限公司 | Output end locking device for automatic hydraulic transmission test |
| KR102164296B1 (en) * | 2019-05-20 | 2020-10-12 | 유니슨 주식회사 | Rotor locking apparatus for wind turbine |
| CN112930441A (en) * | 2018-11-01 | 2021-06-08 | 维斯塔斯风力系统有限公司 | Wind turbine with modular main shaft fastening system and rotor locking disk |
| CN114922778A (en) * | 2022-04-29 | 2022-08-19 | 重庆海装风电工程技术有限公司 | Wind turbine automatic positioning starting method and system based on wind generating set |
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| CN106762443A (en) * | 2016-12-30 | 2017-05-31 | 江苏金风科技有限公司 | For the impeller assistant locking apparatus and mounting method for blade of directly driven wind-powered unit |
| CN106988968A (en) * | 2017-03-08 | 2017-07-28 | 浙江大学 | Wind power plant wind wheel mechanical lock is to aperture apparatus |
| CN110446854B (en) * | 2017-04-07 | 2021-08-27 | 艾德温股份有限公司 | Rotor locking system |
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| US11698055B2 (en) | 2017-12-28 | 2023-07-11 | Jiangsu Goldwind Science & Technology Co., Ltd. | Self-inspection method and device for hydraulic control turning system of generator rotor |
| CN112930441A (en) * | 2018-11-01 | 2021-06-08 | 维斯塔斯风力系统有限公司 | Wind turbine with modular main shaft fastening system and rotor locking disk |
| KR102164296B1 (en) * | 2019-05-20 | 2020-10-12 | 유니슨 주식회사 | Rotor locking apparatus for wind turbine |
| WO2020235755A1 (en) * | 2019-05-20 | 2020-11-26 | 유니슨 주식회사 | Rotor lock device for wind power generator, and control method therefor |
| CN110939671A (en) * | 2019-12-05 | 2020-03-31 | 贵州凯星液力传动机械有限公司 | Output end locking device for automatic hydraulic transmission test |
| CN114922778A (en) * | 2022-04-29 | 2022-08-19 | 重庆海装风电工程技术有限公司 | Wind turbine automatic positioning starting method and system based on wind generating set |
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| CN103644082B (en) | 2016-11-09 |
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