CN114483449A

CN114483449A - Barring control method of wind generating set impeller, barring tool and wind generating set

Info

Publication number: CN114483449A
Application number: CN202210109067.3A
Authority: CN
Inventors: 李红峰; 李斌; 方晶; 蒋旭亮; 杨新勇
Original assignee: Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Current assignee: Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-05-13

Abstract

The embodiment of the application discloses a barring control method for an impeller of a wind generating set, a barring tool and the wind generating set, wherein a barring gear of the barring tool is fixed with a rotor or a brake disc of a generator; judging whether yaw is needed, starting a yaw system if yaw is needed, and controlling a driving part of the barring tool to start if yaw is not needed; the driving part drives a speed reducer of the barring tooling to rotate, and a barring gear is driven by the speed reducer to rotate so as to drive a rotor or a brake disc of the generator to rotate, so that the impeller is driven to rotate to a required position. When the disk vehicle is controlled, the speed reducer is driven by the driving part, the turning gear is driven by the speed reducer to rotate, and then the rotor or the brake disc of the generator is driven to rotate, so that the driving is stable and reliable. In addition, the controller of the barring tool can control the unit to yaw, the impeller can be adjusted to a position which is relatively appropriate and approximately corresponds to the hoisted blade, and then the barring is carried out to adjust the angle of the impeller, so that the blade and the hub are installed in an aligned mode.

Description

Barring control method of wind generating set impeller, barring tool and wind generating set

Technical Field

The invention relates to the technical field of wind power generation, in particular to a barring control method for an impeller of a wind generating set, the wind generating set and a barring tool.

Background

The wind generating set comprises a tower, a cabin arranged above the tower and an impeller, wherein the impeller comprises a hub and a plurality of blades mounted on the hub.

When the blades are installed, the blades can be hoisted to the top of the tower frame to be installed at the corresponding positions on the hub, the impeller is required to be driven to rotate at the moment, the installation positions of the blades on the hub are rotated to the corresponding hoisted positions, so that the blades are installed conveniently, and the impeller is required to be driven to rotate more reliably and stably.

Disclosure of Invention

The embodiment of the application provides a barring control method for an impeller of a wind generating set, which is carried out by controlling a barring tool and comprises the following steps:

fixing a turning gear of the turning tool with a rotor or a brake disc of a generator;

judging whether yaw is needed, starting a yaw system if yaw is needed, and controlling a driving part of the barring tool to start if yaw is not needed;

the driving part drives a speed reducer of the barring tooling to rotate, and a barring gear is driven by the speed reducer to rotate so as to drive a rotor or a brake disc of the generator to rotate, so that the impeller is driven to rotate to a required position.

In a specific embodiment, the turning tool is hoisted to a main platform of an engine room of the wind generating set and fixed with the main platform, and then a turning gear of the turning tool is fixed with a rotor or a brake disc of the generator.

In a specific embodiment, the jigger tool further comprises a brake and/or a locking pin device;

when the turning gear is turned, the position of the impeller is obtained, and when the impeller is judged to rotate to the required position, the brake is controlled to tightly hold and brake the turning gear and/or the locking pin of the locking pin device is controlled to be inserted into the turning gear for braking.

In a specific embodiment, the barring tool is provided with the brake or the locking pin separately, before the driving part is started, the state of the locking pin or the brake is detected, whether the locking pin exits from the barring gear or whether the brake is released or not is judged, and if the locking pin exits from the barring gear or the brake is released, the driving part is controlled to be started;

when the barring tool is simultaneously provided with the brake and the locking pin, before the driving part is started, the states of the locking pin and the brake are detected, whether the locking pin exits from the barring gear and whether the brake is loosened are judged, and if the locking pin exits from the barring gear and is loosened, the driving part is controlled to be started.

In one specific embodiment, before the driving part is started, whether the turning gear is aligned with the rotor of the generator or the brake disc is detected, and if the turning gear is aligned with the rotor of the generator or the brake disc, the driving part is controlled to be started.

The embodiment of the application also provides a turning tool for the impeller of the wind generating set, which comprises a turning gear, a base, a speed reducer and a driving part, wherein the turning gear is used for connecting a rotor or a brake disc of a generator of the wind generating set; the turning gear is rotationally connected to the base; the speed reducer is arranged on the base and is provided with an output gear, the output gear is meshed with the turning gear, and the driving part is used for driving the speed reducer; the jigger tool further comprises a controller, and the controller controls the driving part; the controller is also connected with a yaw system of the wind generating set.

In a specific embodiment, the turning gear further comprises a brake arranged on the base, and the brake is used for braking the turning gear.

In a specific embodiment, the lifting device further comprises a lifting connector, and the lifting connector is arranged on the base.

In a concrete implementation mode, still including be fixed in the installation department of base, and set up in the count gear of installation department, the count gear meshing in the barring gear, still including the detection count gear turned angle's encoder or count sensor.

In a specific embodiment, the base is further provided with a locking pin device, the locking pin device comprises a pin seat and a locking pin, the pin seat is fixed on the base, the turning gear is provided with a plurality of pin holes along the circumferential direction, and the locking pin of the locking pin device can be inserted into the pin holes.

In a specific embodiment, the brake system further comprises a coupling for connecting the turning gear and the rotor of the generator or the brake disc.

In a specific embodiment, the coupling is provided with a centering instrument for detecting whether the coupling and the rotor or the brake disc are centered.

In one embodiment, the turning gear is rotatably coupled to the base by a bearing.

In one embodiment, two sets of the speed reducer and the driving portion are provided.

The embodiment of the application further provides a wind generating set, which comprises an engine room and an impeller and further comprises any one of the turning tool for the impeller of the wind generating set, wherein the turning tool is arranged on the main platform of the engine room.

When the disk vehicle is controlled, the speed reducer is driven by the driving part, the turning gear is driven by the speed reducer to rotate, and then the rotor or the brake disc of the generator is driven to rotate, so that the driving is stable and reliable. In addition, before the drive part is started, whether the unit needs to yaw is judged firstly, the yaw system is started to control to continue to yaw if the unit needs to yaw, the yaw is not needed, and the drive part is started to start barring.

In addition, in further scheme, set up two sets of reduction gears and drive division in this application embodiment, then after one of them group drive division or reduction gear broke down, another a set of can drive the barring frock and continue normal rotation to do not influence unit hoist and mount.

Drawings

FIG. 1 is a schematic view of a wind turbine generator system according to an embodiment of the present application;

FIG. 2 is a schematic view of the barring tooling of FIG. 1;

FIG. 3 is a schematic view of the turning gear tooling of FIG. 2 from another perspective;

FIG. 4 is an exploded view of the barring tooling of FIG. 2;

FIG. 5 is a schematic view of the turning gear assembly of FIG. 2 with the base removed;

FIG. 6 is a schematic view of FIG. 5 from another perspective;

FIG. 7 is a schematic view of the brake of FIG. 4;

FIG. 8 is a schematic view of the locking pin arrangement of FIG. 4;

FIG. 9 is a schematic view of the centering apparatus provided on the coupling of FIG. 4;

fig. 10 is a schematic structural diagram of the turning tool provided in the embodiment of the present application;

fig. 11 is a flowchart of a barring control method provided in an embodiment of the present application.

The reference numerals in fig. 1-11 are illustrated as follows:

100-turning tooling;

1-1-a first electric machine; 1-2-a second electric machine; 2-1-a first reducer; 2-2-second reducer; 2-11-a first output gear; 2-21-second output gear;

3-turning gear; 31-gear teeth; 3 a-pin hole;

4-a bearing; 41-inner ring; 42-an outer ring; 4 a-connecting bolt; 4 b-connecting bolts;

5-counting gears; 6-connecting rod;

7-a brake;

8-locking pin means; 81-oil inlet; 82-an oil outlet; 83-stroke sensor;

9-a coupler; 9 a-connecting bolt; 9 b-connecting bolts;

10-a base; 101-hoisting and shackle; 102-a front side panel; 103-rear side plate; 104-a backplane; 104 a-connecting hole;

11-centering instrument;

200-an impeller; 2001-a hub; 2002-blades;

300-a nacelle; 3001-a main platform;

400-rotating shaft; 500-gearbox and generator;

01-a barring power unit; 02-tubing and cable; 03-control transfer box.

Detailed Description

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a schematic view of a wind turbine generator system according to an embodiment of the present application, mainly illustrating a nacelle 300 and a part of an impeller 200.

The barring tool 100 in the embodiment of the present application is used for driving an impeller 200 of a wind turbine generator system, as shown in fig. 1, the wind turbine generator system includes a nacelle 300, the impeller 200 is mounted at one end of the nacelle 300, and blades 2002 are mounted on a hub 2001 of the impeller 200. The transmission shaft system of the wind generating set comprises a rotating shaft 400 and a gear box, the gear box and a generator 500 are both arranged in a cabin 300, an impeller 200 is connected to the gear box through the rotating shaft 400, and the output end of the gear box is connected to the generator, so that the rotation of the impeller 200 is transmitted to the generator, wind energy is converted into mechanical energy, and then the mechanical energy is converted into electric energy.

The barring tool 100 in this embodiment is also mounted on the main platform 3001 of the nacelle 300.

As will be understood with continued reference to fig. 2-6, fig. 2 is a schematic view of the jigger tool 100 shown in fig. 1, mainly illustrating a side of the jigger tool 100 facing the generator; fig. 3 is a schematic view of the barring tooling 100 in fig. 2 from another view angle, mainly illustrating a side of the barring tooling 100 facing away from the generator; fig. 4 is an exploded view of the barring tool 100 in fig. 2; fig. 5 is a schematic view of the barring tool 100 in fig. 2 with the base 10 removed; fig. 6 is a schematic view of fig. 5 from another viewing angle.

The jigger tool 100 in this embodiment includes jigger gear 3, base 10, reduction gear, drive division, and base 10 is the box structure in this embodiment, and the box includes bottom plate 104 and curb plate, and bottom plate 104 and curb plate enclose to close and form the installation cavity, and the open-top of box is convenient for pack into the box with jigger gear 3 etc. in, and bottom plate 104 is equipped with connecting hole 104a, accessible connecting bolt is fixed to the main platform 3001 of cabin 300. The generator of the wind generating set comprises a rotor and a brake disc, the turning gear 3 is used for being connected with the brake disc or the rotor, in the figure 2, a coupler 9 which can be a rigid coupler 9 is fixed in the middle of the turning gear 3, and the turning gear 3 can be connected with the brake disc or the rotor through the coupler 9. Specifically, one end of the coupler 9 may be fixedly connected to the turning gear 3 through a plurality of connecting bolts 9b, and may of course be fixed through other connecting methods, such as welding, clamping, and other conventional mechanical connecting methods, and hereinafter, the position where the connection is established through the connecting bolts may also refer to other connecting methods herein. The other end of the coupling 9 can also be fixed with the brake disc or the rotor through a connecting bolt 9a, and other fixing connection modes can also be adopted, but the other fixing connection mode should be detachable. In this case, a side plate of the case facing the generator may be provided with a notch so that the coupling 9 is fixedly connected with the turning gear 3 in the case, and the side plate may be defined as a front side plate 102.

In addition, the turning gear 3 is rotatably connected to the base 10, specifically, connected to a side plate of the base 10 away from the generator through the bearing 4, the side plate may be defined as a rear side plate 103, as shown in fig. 4, the bearing 4 includes an inner ring 41 and an outer ring 42, the inner ring 41 may be fixed to the rear side plate 103 through a plurality of circumferentially distributed connecting bolts 4a, the outer ring 42 may be fixed to the turning gear 3 through a plurality of circumferentially distributed connecting bolts 4b, and the turning gear 3, the bearing 4, and the coupler 9 are all coaxially disposed.

As shown in fig. 4, in the present embodiment, two sets of speed reducers and driving parts are further provided, each of which may be an electric motor or a hydraulic motor, each set including a speed reducer and a driving part, respectively, a first speed reducer 2-1 and a first driving part 1-1, and a second speed reducer 2-2 and a second driving part 1-2, as shown in fig. 2 and 3, a housing of the speed reducer is fixed to the base 10 and may be fixed to the rear side plate 103 of the base 10 by means of a connecting bolt 10a, the speed reducer has an output gear engaged with the gear teeth 31 of the turning gear 3, specifically, the first speed reducer 2-1 has a first output gear 2-11, and the second speed reducer 2-2 has a second output gear 2-21, such that when the driving part drives the speed reducer, the output gear of the speed reducer drives the turning gear 3 to rotate, the barring gear 3 can drive the fixed coupler 9 to rotate after rotating, the fixed coupler 9 rotates, the coupler 9 rotates to drive the brake disc or the rotor fixedly connected with the fixed coupler to be fixed, the transmission shaft system transmission of the wind generating set can be driven equivalently, the impeller 200 is finally driven to rotate, then the impeller 200 can be rotated to a required position, the blade installation position is adjusted to the required position, the blade 2002 can be installed, and the barring tool 100 can adjust the blade installation position to a horizontal position or any other angle position.

In this embodiment, through setting up base 10, all set up the part of barring frock 100 on base 10, realize the wholeization of barring frock 100 like this, the installation of being convenient for, it is comparatively reliable. The driving part drives the speed reducer, the speed reducer drives the turning gear 3 to rotate and then drives the rotor or the brake disc of the generator to rotate, and the driving is stable and reliable. In addition, set up two sets of reduction gears and drive division in this embodiment, then after one of them group drive division or reduction gear broke down, another group can drive barring frock 100 and continue normal rotation to do not influence unit hoist and mount.

With continuing reference to fig. 5 and 6, and as will be appreciated in conjunction with fig. 7, fig. 7 is a schematic view of the brake of fig. 4.

The base 10 of the jigger unit 100 is further provided with a stopper 7, the stopper 7 may be fixed to a side plate or a bottom plate 104 of the base 10 by a connection bolt, and the stopper 7 is provided with a connection hole 7a through which the connection bolt may pass to be fixed to the base 10. The brake 7 includes a first brake portion 71 and a second brake portion 72 spaced apart from each other, and a portion of the turning gear 3 is located between the first brake portion 71 and the second brake portion 72. When the impeller 200 rotates to a desired position, the driving part may stop driving, and at this time, the impeller 200 may stay at a predetermined position, but in order to ensure more stable operation, after the impeller 200 rotates to the desired position, the first braking part 71 and the second braking part 72 of the brake 7 may be controlled to approach each other to lock the barring gear 3, so as to achieve the purpose of braking, and thus, the speed reducer and the driving part may also be protected, and multiple braking protection may be implemented.

Additionally, as shown in FIGS. 4-6, and as understood in connection with FIG. 8, FIG. 8 is a schematic view of the locking pin assembly 8 of FIG. 4.

The base 10 in this embodiment is further provided with a locking pin device 8, the locking pin device 8 includes a pin seat 85 and a locking pin 84, and the pin seat 85 can be fixed on the side plate of the base 10 through a connecting bolt. The locking pin device 8 is embodied as a hydraulic drive, the pin holder 85 is provided with an oil inlet 81 and an oil outlet 82, and in addition, the locking pin device 8 is provided with a stroke sensor 83 of the locking pin 84 for detecting the stroke of the locking pin 84. The barring gear 3 is provided with a plurality of pin holes 3a along the circumferential direction, and when the impeller 200 rotates to a desired position, the locking pin 84 can be inserted into a corresponding one of the pin holes 3a, so that the barring gear 3 is prevented from rotating, and multiple braking protection can be realized.

As shown in fig. 2, the hoisting connector is arranged on the base 10 of the barring tool 100, the hoisting connector is specifically a hoisting shackle 101, when barring is needed, the hoisting shackle 101 can be hooked by a hook of the hoisting equipment, the whole barring tool 100 is hoisted to the main platform 3001 of the nacelle 300, after the fixing, the coupler 9 and a rotor or a brake disc of a generator are fixed, barring operation can be performed, namely, the whole barring tool 100 can be hoisted to the nacelle 300 as a whole for installation after the base 10 is arranged, and the installation is convenient and rapid.

As can be understood from fig. 1, the barring fixture 100 in this embodiment is further provided with a barring power unit 01, the barring power unit 01 includes an electric control cabinet and a hydraulic station, the electric control cabinet and the hydraulic station may be disposed in the container, the electric control cabinet may provide a power supply for the hydraulic station, and the electric control cabinet may also provide a power supply, hydraulic power, and a control signal for the barring fixture 100, as shown in fig. 10, when the offshore wind turbine generator is installed, the electric power of the electric control cabinet may be from an installation ship. The barring power unit 01 may be arranged on top of the nacelle 300, but may be mounted to other locations of the nacelle 300, such as also to the interior of the nacelle 300. The nacelle 300 may be provided with a cable and tubing 02 through which the barring power unit 01 may be connected to the barring tool 100 for control. Specifically, a control transfer box 03 can be arranged, the cable and the oil pipe 02 are connected to the control transfer box 03 and then connected to the barring fixture 100, the barring fixture 100 is provided with a controller (not shown in the figure), the control transfer box 03 can be connected to the controller through the cable so as to transmit a control signal and a power signal between the electric control cabinet and the controller, and the control transfer box 03 can be connected to transmission components of the hydraulic station and the barring fixture 100 through the oil pipe, such as a hydraulic motor and the components requiring a hydraulic power source, such as the locking pin device 8; the control adapter box 03 may also provide power to the yawing system.

Referring to fig. 9 again, fig. 9 is a schematic view of the coupling 9 of fig. 4 provided with a centering device 11, wherein the centering device 11 may be a laser centering device.

The centering instrument 11 can detect whether the coupler 9 and the rotor or the brake disc of the generator are centered or not, and prevent the coupler 9 and the rotor or the brake disc from being connected and not centered, so that the barring tool 100 and the whole transmission shaft system are protected.

As shown in fig. 3 and 4, in this embodiment, a counting gear 5 is further provided, the counting gear 5 is engaged with the gear teeth 31 of the turning gear 3, in this embodiment, the counting gear 5 is mounted on the base 10 through a mounting portion, specifically, a connecting rod 6, the connecting rod 6 is fixed to a rear side plate 103 of the base 10, and the counting gear 5 is engaged with the top of the turning gear 3, of course, the mounting portion may have another structure, or the counting gear 5 may be directly rotatably connected to the base 10.

When the barring gear 3 rotates, the counting gear 5 rotates, the encoder or the counting sensor is arranged inside the counting gear 5, so that the rotating angle of the barring gear 3 can be calculated, and then the rotating angle of the impeller 200 can be known, so that whether the impeller 200 rotates to a required position or not can be judged. In this embodiment, counting gear 5 is the pinion, and barring gear 3 is the gear wheel, and the diameter of barring gear 3 is far greater than counting gear 5's diameter promptly, and after barring gear 3 rotated certain angle like this, counting gear 5 can rotate bigger angle or rotate more number of turns, does benefit to the turned angle who calculates barring gear 3 more accurately like this. Of course, the counting gear 5 is not provided, and the rotation angle of the impeller 200 may be detected by other means, such as directly detecting the impeller 200, or directly providing an encoder and a counting sensor on the turning gear 3. Here, by providing the counter gear 5, the detection of the rotation angle of the impeller 200 is achieved in a simple mounting structure.

In this embodiment, when the barring fixture 100 leaves the factory, each component of the barring fixture 100 is assembled into a complete whole, including the base 10, the barring gear 3, the coupling 9, the motor or the hydraulic motor, the speed reducer, the brake 7, the locking pin device 8, and the counter gear 5. The process of assembling the jigger tool 100 to the wind turbine generator set is as follows:

1. the hoisting equipment hoists the hoisting shackle 101 of the barring tool 100, integrally hoists the barring tool 100 and places the barring tool 100 on the main platform 3001 of the cabin 300, and fixes the bottom plate 104 of the base 10 of the barring tool 100 on the main platform 3001 of the cabin 300 through a connecting bolt;

2. connecting a coupler 9 of the barring tool 100 with a rotor or a brake disc of a generator;

3. hoisting the barring power unit 01 of the barring tool 100 on the top of the cabin 300;

4. connecting a turning power unit 01 of the turning tool 100 with a cable and an oil pipe 02 of the turning tool 100 in the engine room 300;

5. through the controller of operation barring frock 100, can start motor or hydraulic motor to start hydraulic motor for example, the start signal of controller can export the automatically controlled cabinet to barring power unit 01 through control transfer box 03, and automatically controlled cabinet exports signal again and gives the hydraulic pressure station, in order to provide hydraulic oil. After the motor or the hydraulic motor is started, the output gear of the speed reducer can be driven to rotate, so that the turning gear 3 is driven to rotate, and then the coupling 9, the generator, the gear box, the rotating shaft 400 and the impeller 200 are driven to rotate;

6. when braking is needed, the controller stops the motor or the hydraulic motor stops running, and the brake 7 holds the brake tightly. If the impeller 200 is rotated until the locking pin 84 corresponds to the pin hole 3a of the barring gear 3, the locking pin 84 can be inserted into the pin hole 3a of the barring gear 3 to perform braking.

The embodiment of the present application further provides a barring control method, which can be understood by continuously referring to fig. 9 and 10, and fig. 9 is a structural schematic diagram of the operation of the barring tool 100 provided in the embodiment of the present application; fig. 10 is a flowchart of a barring control method provided in an embodiment of the present application.

The operating logic of the barring control method is as follows:

1. after the barring tooling 100 is installed, the centering instrument 11 detects whether the centering condition of the coupler 9 of the barring tooling 100 and the center line of the brake disc or the rotor of the generator is qualified. If the centering is not qualified, the turning tool 100 needs to be installed again to adjust the position until the centering is qualified, and then the next operation is carried out;

2. whether yaw is required is input in the controller of the jigger tool 100. If the yaw is needed, the controller can be input with the yaw angle requirement, and the controller can control the wind generating set to yaw, and the yaw is stopped after the yaw reaches the preset angle. If the yawing is not needed, the next turning self-checking link can be carried out;

3. the jigger tool 100 starts self-checking. It is mainly checked whether the locking pin 84 is in a pin-withdrawn state, i.e., withdrawn from the pin hole 3a of the barring gear 3, and the brake 7 is in a released state. These feed back detection signals to the controller from the stroke sensor 83 and the sensor of the brake 7. If it is detected that the lock pin 84 is not in the release state or the brake 7 is not in the release state, it is necessary to input a command to the controller to release the lock pin 84 and the brake 7 and to feed back the detected release and release signals to the controller. It can be understood that when the stopper 7 and the locking pin device 8 are separately provided, the next operation can be performed corresponding to the detection of the release or the release of the pin, and when the stopper 7 and the locking pin device 8 are simultaneously provided, the release and the release of the stopper 7 must be simultaneously detected to enter the next operation:

4. and starting a turning command. The controller controls the hydraulic motor or the motor to start, the turning starts, and the impeller 200 starts to rotate; the counting sensor of the counting gear 5 can collect the turning angle data in the turning process and feed back the turning angle data to the controller. The controller judges whether the barring is in place and whether the rotation angle of the impeller 200 is satisfied. If not, continuing turning; the controller stops the operation of the hydraulic motor or the motor if the count sensor detects that the rotation angle of the impeller 200 has reached a predetermined position. At the same time, the controller outputs a command to cause the brake 7 to lock the brake, and the locking pin 84 can be locked.

5. Then, installation of the blade 2002 may begin. In this case, the blade 2002 may be in a horizontal position, or may be in an arbitrary angular position in a 360-degree direction within the rotation plane of the impeller 200. After the blade 2002 is installed, the operator may confirm whether the blade 2002 is installed, and if not, may input a command to the controller to continue the next barring cycle, so as to repeat the above steps and continue the barring.

In this embodiment, before starting the barring, it is also determined whether yaw control is required, and as shown in fig. 10, the controller of the barring tool 100 is connected to the control adapter box 03, and the control adapter box 03 is connected to the yaw system, it is understood that signals between the controllers may be connected to the yaw system. When the blades 2002 are installed, the blades 2002 need to be hoisted to the top of the wind turbine generator system and located near the impeller 200 through the hoisting equipment, but a certain angle deviation may exist between the final position of the blades 2002 hoisted by the hoisting equipment and the blade installation position on the hub 2001 in the horizontal direction, at this time, even if the impeller is rotated, the deviation cannot be corrected, if the hoisting equipment is adjusted to change the position of the blades 2002, the adjusted position may be difficult to meet the requirements, or further adjustment may be difficult based on the specific position and space limitation of the hoisting equipment, at this time, as long as the yaw system adjusting unit is controlled to yaw, the impeller 200 may be rotated to the position hoisted towards the blades 2002, and then turning is performed, so that the aligned installation of the blade installation positions on the blades 2002 and the hub 2001 can be completed smoothly.

The principle and implementation of the embodiments of the present application are described herein by applying specific examples, and the above description of the embodiments is only used to help understanding the method and its core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present application without departing from the principle of the embodiments of the present application, and those improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A barring control method of a wind generating set impeller is carried out by controlling a barring tool (100), and is characterized by comprising the following steps:

fixing a turning gear (3) of a turning tool (100) with a rotor or a brake disc of a generator;

judging whether yaw is needed, starting a yaw system if yaw is needed, and controlling a driving part of the barring tool (100) to start if yaw is not needed;

the driving part drives a speed reducer of the barring tooling to rotate, a barring gear (3) is driven by the speed reducer to rotate, and a rotor or a brake disc of the generator is driven to rotate so as to drive the impeller (200) to rotate to a required position.

2. The barring control method for the wind generating set impeller according to claim 1 is characterized in that the barring tool (100) is hoisted to a main platform (3001) of a nacelle (300) of the wind generating set and fixed with the main platform (3001), and then a barring gear (3) of the barring tool (100) is fixed with a rotor or a brake disc of the generator.

3. The barring control method for the wind turbine generator system impeller according to claim 1, wherein the barring tool (100) further comprises a brake (7) and/or a locking pin device (8);

when the turning gear is turned, the position of the impeller (200) is obtained, and when the impeller (200) is judged to rotate to a required position, the brake (7) is controlled to clamp and brake the turning gear (3) and/or the locking pin (84) of the locking pin device (8) is controlled to be inserted into the turning gear (3) for braking.

4. The barring control method of the wind generating set impeller according to claim 3, wherein the barring tool (100) is provided with the brake (7) or the locking pin (84) separately, before the driving part is started, the state of the locking pin (84) or the brake (7) is detected, whether the locking pin (84) exits from the barring gear (3) or whether the brake (7) is released is judged, and if the locking pin exits or is released, the driving part is controlled to be started;

when the barring tool (100) is provided with the brake (7) and the locking pin (84) at the same time, before the driving part is started, the states of the locking pin (84) and the brake (7) are detected, whether the locking pin (84) exits from the barring gear (3) or not and whether the brake (7) is loosened or not are judged, and if the locking pin exits from the barring gear and is loosened, the driving part is controlled to be started.

5. The barring control method for the wind generating set impeller according to claim 3 is characterized in that before the driving part is started, whether the barring gear (3) is aligned with the rotor of the generator or the brake disc is detected, and if the alignment is detected, the driving part is controlled to be started.

6. The barring tool for the impeller of the wind generating set is characterized by comprising a barring gear (3), a base (10), a speed reducer and a driving part, wherein the barring gear (3) is used for being connected with a rotor or a brake disc of a generator of the wind generating set; the turning gear (3) is rotationally connected to the base (10); the speed reducer is arranged on the base (10), the speed reducer is provided with an output gear, the output gear is meshed with the turning gear (3), and the driving part is used for driving the speed reducer; the jigger tool (100) further comprises a controller, wherein the controller controls the driving part; the controller is also connected with a yaw system of the wind generating set.

7. The jigger tool of the wind generating set impeller according to claim 6, further comprising a brake (7) arranged on the base (10), wherein the brake (7) is used for braking the jigger gear (3).

8. The jigger tool of the wind generating set impeller according to claim 6, further comprising a hoisting connector, wherein the hoisting connector is arranged on the base (10).

9. The jigger tool of the wind generating set impeller according to claim 6, further comprising an installation part fixed on the base (10), and a counting gear (5) arranged on the installation part, wherein the counting gear (5) is meshed with the jigger gear (3), and further comprising an encoder or a counting sensor for detecting the rotation angle of the counting gear (5).

10. The jigger tool of the wind generating set impeller according to claim 6, wherein the base (10) is further provided with a locking pin device (8), the locking pin device (8) comprises a pin seat (85) and a locking pin (84), the pin seat (84) is fixed on the base (10), the jigger gear (3) is provided with a plurality of pin holes (3a) along the circumferential direction, and the locking pin (84) of the locking pin device (8) can be inserted into the pin holes (3 a).

11. The jigger tool of wind generating set impeller according to claim 6, further comprising a coupling (9), wherein the coupling (9) is used for connecting the jigger gear (3) and the rotor of the generator or the brake disc.

12. The jigger tool of the wind generating set impeller according to claim 11, wherein the coupler (9) is provided with a centering instrument (11), and the centering instrument (11) is used for detecting whether the coupler (9) and the rotor or the brake disc are centered.

13. The jigger tool of the wind generating set impeller according to claim 6, wherein the jigger gear (3) is rotatably connected to the base (10) through a bearing (4).

14. The jigger tool of the wind generating set impeller according to any one of claims 6 to 13, wherein two sets of the reducer and the driving part are provided.

15. A wind park comprising a nacelle (300) and an impeller (200), characterized by further comprising a barring tool (100) for a wind park impeller according to any of claims 6 to 14, the barring tool (100) being arranged on a main platform (3001) of the nacelle (300).