KR101313810B1 - Apparatus for connecting tower and blade - Google Patents

Abstract

PURPOSE: An apparatus for connecting a tower and blade for a wind power generator is provided to connect a tower gripper and a blade gripper to be damped using a damping connecting unit, thereby preventing the tower or the bladed from being damaged by excitation from a resonant frequency due to disturbance in transporting the tower and the blade. CONSTITUTION: An apparatus for connecting a tower and blade for a wind power generator includes a tower gripper (130), a blade gripper (140), and a damping connecting unit (150). The damping connecting unit is connected to the tower gripper and the blade gripper, and connects the tower gripper and the blade gripper to be damped. The damping connecting unit includes a first connecting member, a second connecting member, and a damper. The first connecting member is connected to the tower gripper. The second connecting member is connected to the blade gripper, and is approached to or separated from the first connecting member by a pivot part. The damper is placed between the first connecting member and the second connecting member.

Description

Apparatus for connecting tower and blades

The present invention relates to a tower and blade connecting device for a wind turbine.

Wind turbines (or wind turbines) are devices that produce electrical energy from wind-induced rotational energy, and their weight is increasing due to the exhaustion of fossil fuels and environmental problems.

The wind turbine includes a rotor having a plurality of blades rotated by the wind connected to a hub and a nacelle cover for supporting and protecting a nacelle connected to the rotor. And a tower for supporting the nacelle cover.

The blade uses aerodynamically designed geometry to generate a useful aerodynamic torque in the wind's energy and generates electricity by rotating the generator using this aerodynamic torque.

The aerodynamic shape of the blade is important to increase the amount of electricity generated. In addition, it must be able to adequately support the loads structurally derived from its shape.

The load is dominated by the aerodynamic shape, but it is another important design technique to design the blade as light as possible while supporting the same load through a structurally optimal design.

In large wind turbines, the towers and blades are very large structures, such as large structures of around 100 meters (m), so moving the towers and blades to the installation site is not so easy.

In particular, unlike a land where a large number of dump trucks and cranes can be mobilized as needed, in the case of a poor working environment such as the sea, it is not easy to transport the towers and blades, which are huge structures, to the sea.

On the other hand, when the tower and the blade is transported at sea, it is preferable for efficiency to connect them together in a bundle form rather than to transport the tower and the blade individually, and the present invention related to the tower and blade connection device for wind turbines Research is actively underway.

However, when the tower and the blade are connected by using such a connecting device, various disturbances such as wind load or digging may act on the tower and the blade due to the sea condition. If this occurs with the corresponding resonant frequency can lead to damage to the tower and blades, it is necessary to research and development in consideration of these issues.

Prior Art; Japanese Patent JP2004342346

Therefore, the technical problem to be achieved by the present invention is to connect the tower and the blade in a relatively simple structure to easily transport the tower and the blade, in particular due to the phenomenon of the resonance frequency due to disturbance during the transport of the tower and the blade It is to provide a tower and blade connecting device for a wind turbine that can prevent the tower or blade from being damaged.

According to one aspect of the invention, a tower gripper for gripping (tower); A blade gripper for gripping a blade at a position spaced apart from the tower gripper; And a damping connection unit connected to the tower gripper and the blade gripper and configured to dampen the tower gripper and the blade gripper to be capable of damping.

The damping connection unit may include a first connection member connected to the tower gripper; A second connection member connected to the blade gripper and disposed to approach or be spaced apart from the first connection member by a pivot part; And a damper disposed between the first and second connection members.

The damper may include a rail coupled to the first connection member or the second connection member; A rail block coupled to the rail and moving along the rail; And a damping show bar having opposite ends of the first and second connecting members rotatably coupled to the opposite connecting member of the rail and the rail block.

The blade gripper includes a gripping body; A plurality of gripping arms connected to the gripping bodies; And a contact pressing part provided at an end of the gripping arms to be contact pressed against an outer surface of the blade.

The contact pressing portion may be an elastic contact pressure tube that is elastically contacted with the outer surface of the blade while being bulged by the pressure of the working fluid.

A working fluid supply unit for supplying the working fluid to the elastic contact pressure tube; A working fluid pressure sensing unit sensing a pressure of the working fluid supplied into the elastic contact pressure tube; And a controller for controlling the operation of the working fluid supply unit based on the information of the working fluid pressure sensing unit.

The tower gripper includes a main body ring part; A tower gripping pad disposed in the main body ring part and gripping the tower while being pressed against the outer wall of the tower; And a pad driver driving the tower gripping pad so that the tower gripping pad may be moved radially inward or outward of the tower.

And a deformation preventing unit disposed inside the blade at a position corresponding to a gripping position of the blade gripper with respect to the blade and blocking the deformation of the blade while opposing the gripping direction of the blade gripper in a reverse direction can do.

The deformation prevention unit may be a tube for deformation prevention that can be expanded or bulged by volume by supplying or extracting working fluid.

The deformation prevention unit further includes at least one volume expansion barrier wall which is coupled to at least one side of the deformation prevention tube to guide the volume expansion direction of the deformation prevention tube to prevent volume expansion in the area can do.

According to the present invention, it is possible to connect the tower and the blade with a relatively simple structure to easily transport the tower and the blade, in particular, the tower or the blade is damaged by the excitation of the resonance frequency due to disturbance during the transport of the tower and the blade You can stop being.

1 is a schematic front view for explaining the structure of a wind turbine.
Figure 2 is a perspective view of the tower and the blade is connected by the wind turbine tower and blade connection device according to a first embodiment of the present invention.
3 is an enlarged view of the main part of Fig.
4 is a partially enlarged perspective view of the tower and blade connecting device for the wind turbine.
5 and 6 are views showing the operation of the tower and blade connecting device for the wind turbine, respectively.
7 is a structural diagram of one tower and three blades connected by a tower and blade connecting device for a wind turbine according to a second embodiment of the present invention.
8 is a structural diagram of a tower gripper region of a tower and blade connecting device for a wind turbine according to a third embodiment of the present invention.
9 is an enlarged structural diagram of the contact pressure unit region in the wind turbine tower and blade connecting apparatus according to the fourth embodiment of the present invention.
FIG. 10 is a control block diagram of a tower and blade connection device for a wind power generator applied to FIG. 9.
11 is a main structural diagram of a tower and blade connecting device for a wind turbine according to a fifth embodiment of the present invention.
12 is a cross sectional structural view of the blade.
FIG. 13 is a schematic configuration diagram of a deformation preventing unit of a tower and blade connecting device for a wind turbine according to a sixth embodiment of the present invention to be applied to FIG. 12.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 is a schematic front view for explaining the structure of a wind turbine.

Referring to the wind turbine generator in brief with reference to this drawing, the wind turbine is connected to a nacelle (not shown) and a plurality of blades (110, rotated by the wind), the axial direction of the nacelle and blade 110 And a tower for supporting the load.

The blade 110 is a kind of wing that rotates by wind to generate a rotational motion. The blades 110 disposed radially with respect to the hub 102 may have a streamlined wing shape to be easily rotated by wind, and two or more blades 110 may be applied. Three blades 110 are applied to the wind power generator of this embodiment, but the scope of the present invention is not limited by the number thereof.

The hub 102 is where the plurality of blades 110 are connected. The hub 102 and the plurality of blades 110 may also be referred to as a rotor. The hub 102 may have a substantially circular shape when viewed from the front, and may have a dome shape when viewed from the side.

The hub 102 is connected to a nacelle (not shown) that generates electric power by receiving rotational motion of the blade 110 and generates electric energy, and the nacelle is protected by a nacelle cover 105.

As mentioned earlier, the nacelle is a mechanical component that plays an important role in driving a wind power generator, such as a main shaft (main) It is a collective name for a structure in which mechanical parts such as shafts (not shown), gear boxes (not shown) and generators (not shown) are structurally combined.

The nacelle cover 105 is coupled to the outside of the nacelle serves to protect the nacelle. Since the nacelle cover 105 is exposed to the outside air as it is, it is constantly exposed to snow, rain, or the sun, so that some degree of rigidity must be ensured. Therefore, the nacelle cover 105 may be made of a nonmetal or a metal composite material having excellent durability.

The tower 101 is an axis that is vertically disposed up and down, and supports axial loads on structures such as the plurality of blades 110, the hub 102, the nacelle and the nacelle cover 105.

Like the blade 110, the tower 101 is a hollow pipe-like structure, and a cable or the like is passed through the empty space of the tower 101. The cable may be various kinds of cables including power cables for power transmission, cables for communication, and the like.

Meanwhile, as described above, in order to efficiently transport the tower 101 and the blade 110, the tower 101 and the blade 110 may be connected and transported in order to efficiently transport the sea, which has a considerable limitation in the transport. It is advantageous.

However, when the tower 101 and the blade 110 are simply connected and then transported at sea, vibrations are generated in the tower 101 and the blade 110 due to various disturbances such as wind load or digging, and thus the corresponding resonant frequency. If the excitation phenomenon of the resonance frequency is severe, it may lead to breakage of the tower 101 and the blade 110, in particular the tower 101.

Therefore, a device for efficiently connecting the tower 101 and the blade 110 while preventing such a phenomenon is required, which is responsible for the tower and blade connecting device 120 for a wind turbine of the present embodiment.

2 is a perspective view of a tower and a blade connected by a wind turbine tower and blade connecting apparatus according to a first embodiment of the present invention, FIG. 3 is an enlarged view of main parts of FIG. 2, and FIG. 4 is a wind turbine tower and blades. Partial enlarged perspective view of the connecting device, and FIGS. 5 and 6 are views showing the operation of the tower and blade connecting device for the wind turbine, respectively.

As shown in these drawings, the wind turbine tower and blade connecting device 120 of the present embodiment is connected to the tower gripper 130, the blade gripper 140, and the tower gripper 130 and the blade gripper 140 And a damping connection unit 150 for damping the tower gripper 130 and the blade gripper 140.

The tower gripper 130 is a part for gripping the tower 101. In the present exemplary embodiment, the tower gripper 130 is formed as a ring-shaped structure in which a flange 131 is formed to grip the tower 101 while surrounding the tower 101.

However, this is only one embodiment. That is, the tower gripper 130 may be applied by a forceps method.

For reference, the tower 101 may be provided with a plurality of ring flanges protruding radially outward from the outer wall of the tower 101 and spaced along the longitudinal direction of the tower 101. If so, the tower gripper 130 may be hooked to the ring flange.

The blade gripper 140 grips the blade 110 assembled to the hub 102 (see FIG. 1) disposed at the upper end of the tower 101. In this embodiment, the blade gripper 140 grips one blade 110. Of course, it is also possible to grip the three blades 110, which will be described later.

The blade gripper 140 is provided at a gripping body 141, a plurality of gripping arms 142 connected to the gripping body 141, and end portions of the gripping arms 142 so that the blade gripper 140 is disposed outside the blade 110. And a contact pressurizing unit 143 which is pressed by contact with the surface.

In the present embodiment, a total of four gripping arms 142 are connected to the gripping body 141 to grip the blade 110, which is merely one embodiment. Therefore, the scope of the present invention is not limited to the shape of the drawings. The gripping arms 142 may perform a narrowing or spreading operation by the cylinder 144.

The contact pressurizing portion 143 is a portion which grips the blade 110 while being pressed after being substantially in contact with the outer surface of the blade 110, and does not damage the outer surface of the blade 110, such as rubber, It may be made of a material such as silicone, urethane, and the like.

In addition, the contact pressing unit 143 may have a curvature corresponding to the outer surface shape of the blade 110, in this case, because the blade 110 is able to press the outer surface of the blade 110 to a wider surface Deformation may be prevented from occurring in the blade 110 such as crushing. Accordingly, the blade 110 may be stably gripped while preventing the blade 110 from being deformed.

Meanwhile, the damping connection unit 150 is connected to the tower gripper 130 and the blade gripper 140, and serves to dampen the tower gripper 130 and the blade gripper 140.

The damping connection unit 150 is connected to the first connecting member 151 and the blade gripper 140 connected to the tower gripper 130 and is connected to the first connecting member 151 by the pivot part 153. And a second connecting member 152 disposed to approach or be spaced apart, and a damper 160 disposed between the first and second connecting members 151 and 152.

In the present embodiment, the first and second connection members 151 and 152 are applied as a plate-shaped structure, but the scope of the present embodiment is not limited thereto. That is, the first and second connection members 151 and 152 may be link type structures.

The pivot part 153 and the damper 160 are disposed between the first and second connection members 151 and 152, and each of the pivot parts 153 and the dampers 160 is disposed. The pivot part 153 may be disposed in an upper region between the first and second connecting members 151 and 152.

In addition, the damper 160 is disposed in the lower region between the first and second connection members 151 and 152 so that the first and second connection members 151 and 152 are elastically narrow or wider with the pivot portion 153 as the center. While damping the tower 101 and the blade 110.

The damper 160 includes a rail 161 coupled to the second connecting member 152, a rail block 162 coupled to the rail 161 and moved along the rail 161, and the first connecting member 151. And a damping showbar 163 rotatably coupled at both ends thereof to the rail block 162 and a damping spring 165 coupled to the damping showbar 163.

The rail 161 and the rail block 162 may be applied as an LM guide. Both ends of the rail 161 are provided with a stopper 164 for preventing the rail block 162 from leaving the track.

For reference, in the present embodiment, the rail 161 is coupled to the second connecting member 152, but may also be coupled to the first connecting member 151. In this case, the damping shock absorber 163 is reversed from the drawing. Combined.

It looks at the action of the wind turbine tower and blade connecting device 120 of this embodiment having such a configuration.

When the tower 101 and the blade 110 are connected to each other using the wind turbine tower and blade connecting device 120 of the present embodiment and then transported from the sea, various disturbances such as wind load and digging are caused by the tower 101 and the blade. May act on 110.

In this case, as shown in FIGS. 5 and 6, the damper 160 disposed between the first and second connection members 151 and 152 allows the first and second connection members 151 and 152 to elastically narrow or widen, and thus the tower 101. ) And the blade 110 may be elastically damped. In this case, since the damper 160 performs a damping action while the blade 110 serves as a mass, the tower 101 and the blade ( 110, in particular, the resonance frequency of the tower 101 is not excited. Therefore, the tower 101 and the blade 110, in particular, the tower 101 can be prevented from being damaged.

According to the present embodiment having such a structure, the tower 101 and the blade 110 can be connected to each other in a relatively simple structure so that the tower 101 and the blade 110 can be easily transported, and in particular, the tower 101. And it is possible to prevent the tower 101 or the blade 110 from being damaged by the excitation phenomenon of the resonance frequency due to the disturbance during the transport of the blade 110.

Indeed, when the present embodiment is applied, the tower 101 or the blade 110 may be easily transported to a desired sea position without damaging the expensive tower 101 or the blade 110.

7 is a structural diagram of one tower and three blades connected by a tower and blade connecting device for a wind turbine according to a second embodiment of the present invention.

In the above-described embodiment, one tower 101 and one blade 110 are connected, but in the present embodiment, as shown in FIG. Three blades 110 may be connected, in which case the transfer efficiency may be higher.

In the case of the wind turbine tower and blade connecting device 220 of the present embodiment, three pairs of blade grippers 140 and damping connecting units 150 are provided in pairs along the circumferential direction of the tower gripper 230. The structure and function are the same as in the above-described embodiment.

8 is a structural diagram of a tower gripper region of a tower and blade connecting device for a wind turbine according to a third embodiment of the present invention.

In the present embodiment, the tower gripper 330 is disposed inside the main body ring part 331 and the main body ring part 331, and a tower grip that grips the tower 101 while being pressed against the outer wall of the tower 101. A ping pad 333 and a pad driver 334 for driving the tower gripping pad 333 so that the tower gripping pad 333 can be moved inward or outward of the tower 101.

The body ring part 331 is a ring-shaped structure like the cross-sectional shape of the tower 101. The main body ring portion 331 is provided with a hinge 331a for opening or closing the main body ring portion 331 on one side thereof. And both ends of the main body ring portion 331 is provided with a locking portion 331b for selectively locking or unlocking the main body ring portion 331. The locking portion 331b may be applied as a hook type coupling structure.

The tower gripping pad 333 is a portion which grips the tower 101 while being pressed after being substantially in contact with the outer surface of the tower 101, and is a material that does not damage the outer surface of the tower 101, such as rubber. It may be made of a material such as silicon, urethane, and the like.

In the present embodiment, the tower gripping pad 333 is divided into a plurality of pieces along the circumferential direction of the tower 101. The pad driver 334 is coupled to the plurality of tower gripping pads 333 one by one. In the present exemplary embodiment, since four tower gripping pads 333 are provided, four pad driving units 334 may also be provided.

At this time, the pad driving unit 334 may be an electric actuator or a manual bolt, in the case of the present embodiment, the latter is simply applied. Therefore, when the pad driving unit 334 applied by the manual bolt is tightened in the state as shown in FIG. 8 (a), the tower gripping pads 333 are retracted inward in the radial direction of the tower 101. (101) can be gripped.

When the tower gripper 330 having such a structure is applied, the tower 101 may be stably gripped by structural features, but may be commonly applied to towers 101 having various sizes.

9 is an enlarged structural diagram of the contact pressure unit region in the wind turbine tower and blade connection device according to a fourth embodiment of the present invention, Figure 10 is a control block diagram of the wind turbine tower and blade connection device applied to FIG. to be.

Referring to these drawings, in the present embodiment, the contact pressure unit 443 provided at the ends of the gripping arms 442 of the blade gripper 440 is expanded by the pressure of the working fluid while the outside of the blade 110. It is applied to the elastic contact pressure tube 443 elastically contact pressure on the surface.

When the working fluid is supplied into the elastic contact pressure tube 443 as shown in FIG. 9, the elastic contact pressure tube 443 is expanded in volume, and at the rear of the elastic contact pressure tube 443, the gripping arm 442 is elastic contact pressure. Since the support tube 443 is a volume expansion elastic contact pressure tube 443 is able to support the blade 110 with a wide surface while being widened toward the outer surface of the blade (110).

As such, when the elastic contact pressure tube 443 is widened toward the outer surface of the blade 110 and supports the blade 110 with a large surface, the blade for the gripping of the blade 110 is distributed. While preventing the 110 from being deformed, the blade 110 can be gripped stably.

Meanwhile, in order to operate the elastic contact pressure tube 443 as shown in FIG. 9, a working fluid such as hydraulic pressure is supplied to the elastic contact pressure tube 443. For this purpose, the working fluid supply part 481 and the working fluid pressure are provided. The detector 482 and the controller 483 are provided.

The working fluid supply part 481 is a kind of hydraulic tank for supplying working fluid to the elastic contact pressure tube 443, and the working fluid pressure sensing part 482 detects the pressure of the working fluid supplied into the elastic contact pressure tube 443. It plays a role.

The controller 483 then controls the operation of the working fluid supply unit 481 based on the information of the working fluid pressure detecting unit 482.

The controller 483 performing this role may include a central processing unit 483a (CPU), a memory 483b (MEMORY), and a support circuit 483c (SUPPORT CIRCUIT).

The central processing unit 483a may be one of various computer processors that may be industrially applied to control the operation of the working fluid supply unit 481 based on the information of the working fluid pressure detecting unit 482 in this embodiment. . The memories 483b and MEMORY are connected to the central processing unit 483a. The memory 483b may be installed locally or remotely as a computer-readable recording medium, and may be readily available, such as, for example, random access memory (RAM), ROM, floppy disk, hard disk, or any digital storage form. At least one or more memories. The support circuit 483c (SUPPORT CIRCUIT) is combined with the central processing unit 483a to support typical operation of the processor. Such support circuit 483c may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

In this embodiment, a series of processes for controlling the operation of the working fluid supply unit 481 based on the information of the working fluid pressure detecting unit 482 may be stored in the memory 483b. Typically software routines may be stored in memory 483b. The software routines may also be stored or executed by other central processing units (not shown).

Although the process according to the present embodiment has been described as being executed by a software routine, it is also possible that at least some of the processes of the present invention are performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, or in hardware such as an integrated circuit, or in combination of software and hardware.

11 is a main structural diagram of a tower and blade connecting device for a wind turbine according to a fifth embodiment of the present invention.

As shown in this figure, in the case of the wind turbine tower and blade connection device 520 of the present embodiment, the deformation preventing unit 570 is further included in addition to the configuration of the first embodiment.

The deformation preventing unit 570 is disposed inside the blade 510 at a position corresponding to the gripping position of the blade gripper 540 with respect to the blade 510 and in a reverse direction to the gripping direction of the blade gripper 540. While resisting serves to prevent deformation of the blade 510.

That is, when the contact pressing portion 543 of the blade gripper 540 contacts the outer surface of the blade 510 as shown in FIG. 11 and grips the blade 510 while pressing the blade 510 inwards, the deformation preventing unit ( When the 570 is disposed inside the blade 510 and resists outward, the gripping pressure of the blade 510 may be canceled, thereby effectively preventing the blade 510 from being deformed. In other words, the side wall of the blade 510 may be effectively prevented from being deformed by the pressure of the blade gripper 540 or the strong pressure of the contact pressing part 543.

In this embodiment, the deformation preventing unit 570, which plays this role, is applied to the deformation preventing tube capable of volume expansion or volume contraction by supplying or withdrawing a working fluid, for example, hydraulic pressure. Hereinafter, for the sake of convenience, the deformation preventing unit 570 is described as the deformation preventing tube 570, and the same reference numerals are given.

For reference, the blade 510 is made of a non-metallic material because it has to be rigid and light, unlike the tower 102 made of a metal material. In this case, the blade 510 has a shear web inside the blade 510 such that the blade 510 is not deformed. shear web 511 is provided.

In this structure, the deformation preventing tube 570 may be provided in each space partitioned by the shear web 511. Of course, the deformation preventing tube 570 may be applied only to a selected place among a plurality of spaces.

When the deformation preventing tube 570 is installed, the blade 510 is in a general state that is not expanded inside the blade 510, but when the gripping operation of the blade 510 is performed, the volume is expanded as shown in FIG. 11 to the outside of the blade 510. Resistance to the side can cancel the gripping pressure of the blade 510 to prevent deformation of the blade 510.

FIG. 12 is a schematic cross-sectional view of a blade, and FIG. 13 is a schematic diagram of a deformation preventing unit of a tower and a blade connecting device for a wind turbine according to a sixth embodiment of the present invention to be applied to FIG. 12.

As shown in FIG. 12, in the case of some blades 610, a plurality of shear webs 611 and 612 may be provided therein, and a plurality of shear webs 611 and 612 may cause the interior of the blade 610 to become two. More than one may be partitioned into spaces S1 to S3.

In this case, the deformation preventing unit 670 may be individually disposed in each of the spaces S1 to S3, but the deformation preventing unit 670 is contacted by the pressure of the blade gripper 540 (see FIG. 11), or the contact pressing unit. Since it is only necessary to resist the pressure A of 543 (refer FIG. 11) in the reverse direction, it is sufficient to arrange | position only where such a gripping pressure A is provided.

12, the deformation preventing unit 670 may be disposed only in the second space S2 provided with the gripping pressure A. Referring to FIG.

In addition, the force when the deformation preventing unit 670 is operated, that is, the pressure due to volume expansion is sufficient to act in the direction B of FIG. 12, which is inverse to the gripping pressure A, and the pressure is unnecessarily in the direction C. It does not have to be applied. In fact, when pressure is applied in the C direction, a closed end at which the shear webs 611 and 612 bend may be generated.

In view of this point, in the present embodiment, the deformation preventing unit 670 is applied as shown in FIG. 13.

That is, in the present embodiment, the deformation preventing unit 670 guides the deformation expansion tube 671 and the expansion expansion direction of the deformation preventing tube 671 that are capable of volume expansion or volume reduction by supplying or withdrawing a working fluid. And a volume expansion blocking wall 672 coupled to at least one side of the deformation preventing tube 671 to prevent volume expansion in a corresponding region.

In this case, the volume expansion blocking wall 672 may be disposed in the remaining region except for the gripping direction of the pair of gripping arms 532 (see FIG. 11) on the outer surface of the deformation preventing tube 671.

When the deformation preventing unit 670 having such a structure is applied, when the working fluid is supplied into the deformation preventing tube 671, the deformation preventing tube 671 is expanded in only the direction B of FIG. It can be efficient because it resists (A) in the reverse direction.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

101: Tower 110: Blade
120: tower and blade connection device for a wind power generator 130: tower gripper
140: blade gripper 141: gripping body
142: gripping arm 143: contact pressure portion
150: damping connecting unit 151: first connecting member
152: second connecting member 153: pivot portion
160: damper 161: rail
162: Rail Block 163: Damping Showbar
164: stopper 165: damping spring

Claims (10)

A tower gripper for gripping a tower;
A blade gripper for gripping a blade at a position spaced apart from the tower gripper; And
And a damping connecting unit connected to the tower gripper and the blade gripper and configured to dampen the tower gripper and the blade gripper to a damping connection. The method of claim 1,
The damping connection unit,
A first connection member connected to the tower gripper;
A second connection member connected to the blade gripper and disposed to approach or be spaced apart from the first connection member by a pivot part; And
Tower and blade connecting device for a wind turbine comprising a damper disposed between the first and second connecting members. 3. The method of claim 2,
The damper includes:
A rail coupled to the first connection member or the second connection member;
A rail block coupled to the rail and moving along the rail; And
The tower and blade connecting device for a wind turbine comprising a damping showbar which is rotatably coupled to both ends of the first connecting member and the opposite connecting member of the rail and the rail block. 4. The method according to any one of claims 1 to 3,
The blade gripper
Gripping bodies;
A plurality of gripping arms connected to the gripping bodies; And
And a contact pressurizing portion provided at an end of the gripping arms, the contact pressurizing portion being pressed against the outer surface of the blade. 5. The method of claim 4,
The contact-
A tower and blade connecting device for a wind turbine, which is an elastic contact pressure tube elastically contact-pressured to the outer surface of the blade while being expanded by the pressure of the working fluid. The method of claim 5,
A working fluid supply unit for supplying the working fluid to the elastic contact pressure tube;
A working fluid pressure sensing unit sensing a pressure of the working fluid supplied into the elastic contact pressure tube; And
And a controller for controlling the operation of the working fluid supply unit based on the information of the working fluid pressure sensing unit. 5. The method of claim 4,
The tower gripper,
Main ring;
A tower gripping pad disposed in the main body ring part and gripping the tower while being pressed against the outer wall of the tower; And
And a pad driver for driving the tower gripping pad to move the tower gripping pad radially inward or outward of the tower. 4. The method according to any one of claims 1 to 3,
It is disposed inside the blade at a position corresponding to the gripping position of the blade gripper with respect to the blade, further comprising a deformation preventing unit for preventing the deformation of the blade while resisting in the reverse direction to the gripping direction of the blade gripper Tower and blade connections for wind turbines. 9. The method of claim 8,
The strain blocking unit is a wind turbine tower and blade connection device that is a strain blocking tube that can be expanded or contracted in volume by the supply or withdrawal of the working fluid. 10. The method of claim 9,
Wherein the deformation prevention unit comprises:
A wind turbine tower further comprising at least one volume expansion blocking wall coupled to at least one side of the deformation blocking tube to guide a volume expansion direction of the deformation blocking tube and preventing volume expansion in a corresponding region; Blade connector.

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