KR20170044351A - Wind turbine installation apparatus and wind turbine installation vessel comprising the same - Google Patents

Abstract

According to the present invention, disclosed are a marine wind turbine installation apparatus and a marine wind turbine installation vessel comprising the same. According to an aspect of the present invention, in the marine wind turbine installation apparatus having a tower, a generator body provided in an upper end of the tower, and a plurality of blades rotationally provided in the generator body, provided is the marine wind turbine installation apparatus which comprises: a pair of main frames facing each other for a semi-assembly in which only the tower, the generator body, and one blade are assembled to be arranged therebetween; a transfer unit inserting or drawing out a plurality of erected semi-assemblies between the main frames; and a blade assembly unit individually installed on an external side surface of the main frames to assemble a blade which is not assembled in the generator body.

Description

A wind turbine installation apparatus and a wind turbine installation vessel including the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an offshore wind turbine installation apparatus and an offshore wind turbine installation line including the same, and more particularly, to an offshore wind turbine installation apparatus capable of smoothly and efficiently performing an assembly and installation work of an offshore wind turbine generator The present invention relates to an offshore wind turbine installation line.

As the demand for environmentally friendly energy development grows, the development using wind power generators is getting popular all over the world. In order to install such a wind turbine, a certain environmental condition is required. For example, a place where a wind turbine generator is installed must be a place where a certain level of wind speed can be guaranteed so that the blade of the wind turbine rotates, It should be a place where pollution caused by the noise generated should not become an issue. Even if these environmental conditions are satisfied, a very large area of space is required to install a wind turbine generator.

In recent years, there has been an increasing interest in offshore wind turbines that install wind turbines at sea, in order to be free from the constraints of such environmental conditions. Offshore wind power generators typically include towers, generators bodies and blades, which can be manufactured and transported onshore and assembled and installed together at sea, or assembled offshore wind turbine generators And then transporting them to sea and performing installation work at sea is being used.

However, when the components are transported by sea and assembled and installed together, the assembling work and the installation work must be performed sequentially. Therefore, the period of the process is long and a lot of manpower is required. In particular, The structure becomes complicated and the efficiency of the operation is deteriorated.

On the contrary, if all of assembly work of offshore wind turbine is performed on the land and then it is transported by sea, only the offshore wind turbine is very large and its appearance is complex, so that a large amount of offshore wind turbine generator There is a problem that the efficiency of transportation is deteriorated. In particular, when loading and transporting an assembled offshore wind turbine generator in a standing state, the load on the blade of the offshore wind turbine generator is liable to be caused by the air resistance generated during the operation, thereby causing failure of the wind turbine generator.

Accordingly, there is a need for a method capable of efficiently transporting the offshore wind turbine to a location where the offshore wind turbine is to be installed, performing the assembly work and installation work of the offshore wind turbine generator simultaneously, and smoothly and efficiently installing the offshore wind turbine generator.

Korean Patent Laid-Open Publication No. 10-2015-0082826 (published on May 16, 2015)

The installation device for an offshore wind turbine generator according to an embodiment of the present invention and the installation line for an offshore wind turbine generator including the same are capable of achieving efficiency of loading and transportation by a partially assembled offshore wind turbine generator, So that the assembly and installation work of the battery can be performed smoothly.

According to an aspect of the present invention, there is provided an installation apparatus for an offshore wind power generator including a tower, a generator body provided at an upper end of the tower, and a plurality of blades rotatably provided in the generator body, A main frame and a pair of main frames facing each other so as to arrange the half assemblies assembled with only one blade; A transfer unit for drawing or withdrawing a plurality of stand-up semi-assemblies between the pair of main frames; And a blade assembly installed on the outer surfaces of the pair of main frames for assembling blades not assembled to the generator body.

The blade assembly includes: a rotation plate hinged to an upper end of each main frame so as to be rotatable; A mounting plate on which the non-assembled blade is mounted and is slidably provided on the pivoting plate; A lift member for pivoting the pivot plate and the mounting plate such that the unassembled blade has an angle corresponding to an angle at which the blade is assembled to the generator body; And a docking member for moving the mounting plate to the generator body of the semi-assembly.

The lift member may include a hydraulic cylinder provided between the main frame and the rotating plate, and a piston provided on the hydraulic cylinder and coupled with the rotating plate. The piston is connected to the hydraulic pressure provided by the hydraulic cylinder, And the rotating plate can be rotated.

The docking member may include a rack gear provided on the mounting plate, a pinion gear provided on the rotating plate and meshed with the rack gear, and a driving motor for providing a driving force to the pinion gear.

Further, the transfer unit may include: a rail part extending in the horizontal direction on the inner side surfaces of the pair of main frames; And a support member attached to the semi-assembly so as to be movable along the pair of rails and detachably attached to the semi-assembly.

In addition, the rail portion may be provided as an upper rail formed on the upper side of the main frame and a lower rail formed on the lower side of the main frame.

Further, the support member may be provided with an upper jig movably installed on the upper rail and a lower guide movably installed on the lower rail.

The upper jig and the lower jig are each formed as a pair so as to enclose the half jig of the portion where the upper jig and the lower jig are located, and the upper jig supports the upper side of the tower together with one blade installed in the half- .

Further, the pair of upper jigs and the pair of lower jigs may include a fixed panel movably installed on the upper and lower rails, respectively, and a turning panel rotatably mounted on the fixed panel.

In addition, the upper main rail and the lower auxiliary rail may be provided on the pair of main frames, wherein the upper and lower rails extend.

According to another aspect of the present invention, there is provided a marine wind power generator including a tower, a generator body provided at an upper end of the tower, and a plurality of blades rotatably provided at the generator body, 1. A wind power generator installation line, comprising: a ship body having a moon pool formed at a rear side thereof; A plurality of jacking units installed up and down on the ship main body and fixing the position of the ship main body in the sea so that the ship main body can float vertically in the sea; A pair of main frames disposed facing each other with respect to the door frame and installed in the longitudinal direction of the ship body; A transfer unit for drawing or withdrawing a plurality of semi-assemblies assembled with only the tower, the generator body, and one blade between the pair of main frames in an upright state; And a blade assembly installed on the outer surface of the pair of main frames to assemble the blades not assembled to the generator body, wherein the blades are assembled by the blade assembly, And an offshore wind power generator installation line that is installed on the key structure that is moved to the door pool through the transfer unit and is located below the door pool may be provided.

The conveyance unit may include: a rail portion extending in the horizontal direction on the inner side surfaces of the pair of main frames; And a support member attached to the semi-assembly so as to be movable along the pair of rails and detachably attached to the semi-assembly.

Further, the pair of main frames may be provided with auxiliary rails extending from the rail portions.

Further, the supporting member holding the offshore wind turbine installed in the foundation structure may be moved to the auxiliary rail portion and stored in the auxiliary rail portion.

The installation device for an offshore wind turbine generator according to an embodiment of the present invention and the installation line for an offshore wind turbine generator including the same provide the efficiency of loading and transporting through a preassembled half-assembly of a tower, a generator body and a plurality of blades There is an effect that can be done.

In addition, since only one braid is transported, it is possible to minimize the load on the blade due to air resistance during operation.

In addition, since only the blades are assembled to the semi-assembly at the installation point of the sea and installed in the foundation structure, the assembly and installation work of the offshore wind power generator can be smoothly performed at the same time, thereby shortening the process time.

Accordingly, it is possible to reduce the manpower and cost for assembling and installing the offshore wind power generator.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be described in detail with reference to the following drawings, which illustrate preferred embodiments of the present invention, and thus the technical idea of the present invention should not be construed as being limited thereto.
1 is a perspective view showing an installation line provided with an offshore wind turbine installation device according to an embodiment of the present invention;
2 is a rear view showing the rear side of the installation block of the offshore wind power generator of Fig. 1;
3 is a perspective view illustrating a state where a half-assembly and a blade are mounted on an offshore wind turbine installation apparatus according to an embodiment of the present invention.
4 is a side view showing an installation line of an offshore wind power generator of Fig.
5 is a perspective view showing a half-assembly mounted on the off-axis wind power generator installation apparatus of FIG.
6 is a partially cutaway perspective view showing a state in which a support member of a transport unit provided in an offshore wind turbine installation apparatus according to an embodiment of the present invention is installed in a half assembly.
FIG. 7 is a partial perspective view illustrating a blade assembly provided in an offshore wind turbine installation apparatus according to an embodiment of the present invention. FIG.
8 is a rear view showing a state in which the rotation plate and the mounting plate are operated through the lift member of the blade assembly.
9 and 10 are views showing a state in which the blades of the mounting plate are installed on the generator body via the docking members of the blade assembly, respectively.
11 is a rear view illustrating a state in which an offshore wind turbine having blades assembled by an offshore wind turbine installation apparatus according to an embodiment of the present invention is completed.
FIG. 12 is a plan view showing a state where a foundation structure is placed on a door of an installation ship of an offshore wind power generator according to an embodiment of the present invention. FIG.
13 is a side view showing a state where an installation line of an offshore wind power generator according to an embodiment of the present invention is fixed at an installation point where a foundation structure is provided.
FIG. 14 is a partially cutaway perspective view showing a state where an assembly (offshore wind power generator) assembled at an installation line of an offshore wind power generator according to an embodiment of the present invention is installed on a foundation structure.
15 is a perspective view showing a state in which a support member of a transport unit provided in an offshore wind power generator installation apparatus according to an embodiment of the present invention is detached from an offshore wind power generator.
FIG. 16 is a perspective view illustrating a state in which a support member is transported and stored in an auxiliary frame provided on an installation line of an offshore wind power generator according to an embodiment of the present invention. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided to fully convey the spirit of the present invention to a person having ordinary skill in the art to which the present invention belongs. The present invention is not limited to the embodiments shown herein but may be embodied in other forms. For the sake of clarity, the drawings are not drawn to scale, and the size of the elements may be slightly exaggerated to facilitate understanding.

FIG. 1 is a perspective view showing an installation line provided with an offshore wind turbine installation apparatus according to an embodiment of the present invention, and FIG. 2 is a rear view showing a rear side of an installation line of an offshore wind turbine generator of FIG.

1 and 2, an offshore wind turbine installation line 10 according to an embodiment of the present invention includes a ship body 11 having a moon pool 13 formed on the rear side thereof, A plurality of jacking units 15 for fixing the position of the ship body 11 at the sea level and a wind turbine generator 15 for loading and unloading the wind turbine, And includes a mounting device 100. Here, the door frame 13 is a portion in which a foundation structure (see P 'in FIG. 12) provided in the sea is installed for installing a wind power generator on the sea, and the jacking unit 15 is provided with a wind power generator 14 'in FIG. 14) is suspended in the vertical direction from the sea when the ship body 11 is installed. A structure for fixing the installation line 10 by placing the foundation structure P on the door cloth 13 of the offshore wind power generator installation line 10 will be described below again.

15, the wind turbine generator 20 includes a tower 21, a generator body 22 provided at an upper end of the tower 21, and a generator And has a plurality of blades (23). The wind turbine generator 20 is commonly used, and is a well-known technology, and thus a detailed description thereof will be omitted.

An offshore wind turbine installation apparatus 100 according to an aspect of the present invention includes a main frame 110 on which a half assembly (see 25 'in FIG. 5) is disposed and a main frame 110 on which a half- And a blade assembly 130 installed outside the main frame 110 to assemble the semi-assembly 25 into the finished assembly 20. Here, the half-assembly 25 means a state in which the wind turbine generator 30 is partially assembled, and includes a tower 21, a generator body 22 and a plurality of blades 23 Only one blade 23 is assembled and configured.

The above-described offshore wind turbine installation apparatus 100 is installed on the installation line 10 and travels to the installation point of the sea, and then the assembly 20 is assembled to the finished assembly 20, that is, the wind turbine generator 20 The assembling operation for completing the assembling work and the assembling work for installing the completed assembly 20 on the base structure P are carried out. 1 and 2 illustrate a state in which the unassembled blade 23 is not mounted for assembling the semiassembly 25 and the semiassembly 25 into the finished assembly 20, 3 and 4, in which the wind turbine generator 25 and the unassembled blade 23 are stacked, will be described in detail with reference to FIG.

Referring to FIGS. 1 to 4, the main frames 110 are arranged in a pair and are arranged facing each other with the door frame 13 as a center, and are installed in the longitudinal direction of the ship body 11. A predetermined space is provided between the pair of main frames 110 so that the half-assembly 25 is disposed in an upright position. That is, as shown, a plurality of semi-assemblies 25 are disposed between the main frames 110. The semi-assemblies 25 are stably stacked in a state of being held by the support members 125 of the transport unit, do.

The transporting unit serves to pull in or pull out a plurality of standing up semi-assemblies (25) between the pair of main frames (110). More specifically, the conveying unit includes rails 121 and 122 extended horizontally on the inner side surfaces of the pair of main frames 110, and a pair of rails 121 And a support member 125 that is removably installed on the semi-assembly 25 to be movable along the guide rails 122 and 122.

The rails 121 and 122 are provided as an upper rail 121 formed on the upper side of the main frame 110 and a lower rail 122 formed on the lower side of the main frame 110. The pair of main frames 110 are provided with an upper auxiliary rail 121a and a lower auxiliary rail 122a formed by extending the upper rail 121 and the lower rail 122. The upper auxiliary rail 121a is formed on the upper side of the upper rail 121 and connected to the upper rail 121. As shown in FIG. The lower auxiliary rail 122a is formed to extend in the longitudinal direction of the lower rail 122. [ The upper auxiliary rail 121a and the lower auxiliary rail 122a are provided to receive a support member 125, which will be described later.

The support member 125 is installed so as to be movable along a pair of rails 121 and 122 which are connected to each other by binding the semi-assembly 25. 6, the support member 125 is provided with an upper jig 126 movably installed on the upper rail 121 and a lower jig 127 movably installed on the lower rail 122 do.

The upper jig 126 and the lower jig 127 are each made of a pair. A pair of upper jigs 126 are formed to enclose the half assembly 25 located between the pair of upper jigs 126 and a pair of lower jigs 127 are formed so as to surround the pair of lower jigs 126, (25) located between the first and second portions (127). The lower jig 127 is installed so as to enclose the lower side of the tower 21 of the semi-assembly 25 and the upper jig 126 is connected to the tower 23 together with one blade 23 installed on the half- (21).

The upper jig 126 and the lower jig 127 have a detachable structure so that the upper jig 126 and the lower jig 127 are installed so as to enclose the half-assembly 25. For example, the pair of upper jig 126 and the pair of lower jig 127 each have a rotatable structure. 15, the upper jig 126 includes an upper fixing panel 126a movably installed on the upper rail 121 and an upper rotation panel 126b rotatably mounted on the upper fixing panel 126a. Respectively. The lower jig 127 includes a lower fixing panel 127a movably installed on the lower rail 122 and a lower turning panel 127b rotatably mounted on the lower fixing panel 127a. The upper jig 126 and the lower jig 127 are pivoted by a predetermined angle with the pivotal panels 126b and 127b facing each other with the pendant assembly 25 interposed therebetween to support and support the pendant assembly 25 So that the half assembly 25 can be movably unbonded.

The upper and lower jig 126 and 127b are formed with grooves having a predetermined shape in order to engage the upper and lower jigs 126 and 127 with each other. The groove may be formed to have a through-hole to enclose the half-assembly 25 positioned between the pair of pivotal panels 126b and 127b when the pair of pivotal panels 126b and 127b are connected.

FIG. 7 is a partially cutaway perspective view of a blade assembly provided in an offshore wind turbine installation apparatus according to an embodiment of the present invention, and FIG. 8 is a rear perspective view illustrating a state in which a rotation plate and a mounting plate are operated through a lift member of a blade assembly 9 and 10 are views showing a state in which the blades of the mounting plate are installed on the generator body via the docking members of the blade assembling parts respectively and Fig. 11 is a view showing a state in which the off- FIG. 5 is a rear view showing a state where the generator is completed.

Referring to FIGS. 7 to 11, the blade assembly 130 according to an aspect of the present invention is installed on an outer surface of a pair of main frames 110, respectively. The blade 23 assembled in the half assembly 25 is mounted on the blade assembly 130 and assembles the blade 23 into the half assembly 25. At this time, a plurality of blade assemblies 130 may be installed in the horizontal direction of the main frame 110. Preferably, the number of sub-assemblies 25 may be the same as the number of the sub-assemblies 25 mounted between the pair of main frames 110. Further, each blade assembly 130 is installed at a position corresponding to the position where the half-assembly 25 is disposed.

More specifically, the blade assembly 130 includes a rotation plate 131 rotatably coupled to an upper end of each main frame 110, a non-assembled blade 23 mounted on the rotation plate 131, And a lift member (not shown) for rotating the rotation plate 131 and the mounting plate 132 so as to have an angle corresponding to an angle at which the unassembled blade 23 is assembled to the generator body 22 134 and a docking member 136 that allows the mounting plate 132 to approach the generator body 22 of the half-assembly 25.

The pivoting plate 131 may be provided in a plate shape having a predetermined area to stably support the mounting plate 132. The pivot plate 131 may be hinged to be rotatable on the main frame 110 at its upper end. Accordingly, the pivot plate 131 is pushed by the lift member 134 and pivots about the hinge coupling portion.

The mounting plate 132 is slidably mounted on the pivot plate 131. That is, the mounting plate 132 is movably installed toward the half-assembly 125 by the docking member 136. A mounting portion 133 is provided on the mounting plate 132 so as to support the unassembled blade 23 for mounting to the assembly 25. A plurality of mounting portions 133 are formed at predetermined positions so as to stably hold the unassembled blades 23.

The lift member 134 includes a hydraulic cylinder 134a provided between the main frame 110 and the rotation plate 131 and installed on the outer surface of the main frame 110 and a hydraulic cylinder 134b provided on the hydraulic cylinder 134a, 131, respectively. This lift member 134 is a hydraulic structure, and is formed such that when the hydraulic pressure is supplied to the hydraulic cylinder 134a, the piston 134b is operated. In other words, the piston 134b moves and is pivoted by pressing the pivoting plate 131. In addition, when the hydraulic pressure of the hydraulic cylinder 134a is removed, the rotation plate 131 and the mounting plate 132 return to their original positions together with the piston 134b. At this time, as described above, the rotation plate 131 and the mounting plate 132, which are rotated by the piston 134b, have an angle corresponding to the angle at which the unassembled blade 23 is assembled to the generator body 22 Position.

When the pivot plate 131 and the mounting plate 132 are pivoted to the position where they are assembled with the generator body 22 of the half assembly 25 by the lift member 134, To the generator body 22 side. More specifically, the docking member 136 includes a rack gear 137 provided on the mounting plate 132, a pinion gear 138 provided on the rotation plate 131 and engaged with the rack gear 137, (Not shown) for providing a driving force to the drive wheels 138 (see FIG. The docking member 136 has a rack-pinion gear assembly structure, and has a structure for converting the rotational force into a linear motion. That is, the rack gear 137 engaged with the pinion gear 138 rotated through the driving motor is linearly moved along the rotating direction of the pinion gear 138. At this time, the rack gear 137 may be formed on at least one side of both sides of the mounting plate 132 in the longitudinal direction, but it is preferable that the rack gear 137 is formed on both sides of the mounting plate 132 for stable movement. Further, the pinion gear 138 should be provided at the position where the rack gear 137 is formed.

In addition, a guide structure (not shown) is provided between the mounting plate 132 and the rotation plate 131 so that the mounting plate 132 stably moves when the mounting plate 132 slides from the rotation plate 131 via the docking member 136. [ (Not shown) may be provided. For example, a projection line (not shown) or a groove line (not shown) is formed on one surface of the rotation plate 131 facing the mounting plate 132 in the moving direction of the mounting plate 131, A groove line or a projection line may be formed on one surface of the plate 132 to be coupled with a projection line or a groove line. That is, according to the combination of the protrusions and the grooves, the mounting plate 132 is guided when moved, and can be stably moved.

When the blade 23 unassembled by the docking member 136 is installed in the half-assembly 25 as described above, the blade assembly 130 is returned to the original position. At this time, the mounting portion 133 has a structure of releasing the binding so that the blade 23 is easily detached from the mounting plate 132. For example, the mounting portions 133 may be formed as a pair, and a pair of mounting portions 133 may be provided. Thus, after the blade 23 is coupled to the half-assembly 25, the blade assembly 130 is restored to its original state without being disturbed by the surrounding structure in the operation of returning the blade assembly 130 to its original position. The completed assembly 20 assembled by the blade assembling unit 130 is a completed product of the wind power generator and the completed assembly 20 is installed in the foundation structure P provided at the installation point of the sea.

An operation of installing the wind power generator 20 on the foundation structure P through the installation line 10 provided with the offshore wind power generator installation apparatus 100 having the above structure will now be described.

3, the offshore wind turbine installation line 10 on which the half-assembly 25 of the wind power generator and the unassembled blade 23 are mounted is installed in a marine installation for installing the wind power generator 20 To the point.

That is, in order to install the wind power generator 20 at the installation point, as shown in FIG. 12, the foundation structure P is positioned on the door frame 13 formed on the rear side of the installation line 10.

In this state, in order to stably install the wind power generator 20 on the foundation structure P, the installation line 10 is fixed to the sea. 13 shows a state in which an installation line for an offshore wind power generator according to an embodiment of the present invention is fixed at an installation point where a foundation structure is installed. Referring to the drawings, an installation line 10 is suspended and fixed in a vertical direction at sea through a jacking unit 15 formed on a ship body 11. The jacking unit 15 is installed on the ship body 11 so as to be vertically movable with respect to the ship body 11 and includes legs 16 to be inserted into the seabed surface and to move up and down the legs 16 And a leg support 17 for supporting the legs. That is, as the legs 16 descend from the leg supports 17 and are inserted into the sea floor, the ship body 11 is fixed. The number of the jacking units 15 may be plural. For example, four pieces of the jacking unit 15 may be provided in the edge region of the ship body 11. [

When the ship body 11 is fixed to the sea as described above, the blades 23 assembled to the semi-assembly 25 through the blade assembly 130 are assembled. That is, assembly of the wind turbine as a complete assembly 20 is completed through the blade assembly 130 as shown in FIGS.

14, after the assembled wind turbine 20 is transferred to the upper portion of the foundation structure P through the transfer unit, the lower end of the tower 21 is fixed to the foundation structure P . When the lower end of the tower 21 is attached to the foundation structure P, the leg body 16 is moved up and down through the jacking unit 15 to move the vessel body 11 downward, The base structure P can be brought into contact.

When the wind power generator 20 is fixed to the foundation structure P, the support member 125 of the conveyance unit is released from the wind power generator 20 to release the binding. That is, as shown in FIG. 15, the upper and lower jigs 126 and 127 rotate together to release the binding.

The upper jig 126 and the lower jig 127 to which the bundle is unbonded are connected to the upper rail 121 and the upper rail 121 so as not to be disturbed when the wind power generator 20 is installed on the foundation structure P of another installation point. And is moved to and stored in the lower auxiliary rail 122a connected to the auxiliary rail 121a and the lower rail 122. [

As a result, by performing the installation operation described above using the offshore wind turbine installation apparatus 100 and the offshore wind turbine installation line 10 including the same, the loading and unloading of the wind turbine 20 And it is possible to smoothly perform the assembly and installation work of the wind power generator 20 at an installation point on the sea.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

10: Offshore wind turbine installation line 13: Moon pool
15: Jacking unit 20: Wind power generator (complete assembly)
23: blade 25: half assembly
100: Offshore wind turbine installation device 110: Main frame
121: upper rail 121a: upper auxiliary rail
122: lower rail 122a: lower auxiliary rail
126: upper jig 127: lower jig
130: blade assembly 131: rotating plate
132: mounting plate 133: mounting part
134: Lift member 136: Docking member

Claims (14)

An installation device for an offshore wind power generator including a tower, a generator body provided on an upper end of the tower, and a plurality of blades rotatably provided on the generator body,
A pair of main frames facing each other so as to be disposed between the tower, the generator body and the assembled half assembly of only one blade;
A transfer unit for drawing or withdrawing a plurality of stand-up semi-assemblies between the pair of main frames; And
And a blade assembly installed on the outer surfaces of the pair of main frames to assemble blades not assembled to the generator body. The method according to claim 1,
The blade assembly includes:
A rotatable plate hinged to an upper end of each main frame so as to be rotatable;
A mounting plate on which the non-assembled blade is mounted and is slidably provided on the pivoting plate;
A lift member for pivoting the pivot plate and the mounting plate such that the unassembled blade has an angle corresponding to an angle at which the blade is assembled to the generator body; And
And a docking member for moving the mounting plate to a generator body of the semi-assembly. 3. The method of claim 2,
The lift member
A hydraulic cylinder provided between each of the main frames and the rotation plate, and a piston provided on the hydraulic cylinder and coupled with the rotation plate,
Wherein the piston is operated by the hydraulic pressure supplied to the hydraulic cylinder and rotates the rotating plate. 3. The method of claim 2,
Wherein the docking member comprises:
A rack gear provided on the mounting plate, a pinion gear provided on the rotating plate and engaged with the rack gear, and a drive motor for providing a driving force to the pinion gear. The method according to claim 1,
The transfer unit
A pair of main frames extending in the horizontal direction; And
And a support member which is coupled to the semi-assembly and is movable along the pair of rail portions, and is detachably mounted to the half-assembly. 6. The method of claim 5,
Wherein the rail portion is provided with an upper rail formed on the upper side of the main frame and a lower rail formed on a lower side of the main frame. The method according to claim 6,
Wherein the support member comprises an upper jig movably installed on the upper rail and a lower guide movably installed on the lower rail. 8. The method of claim 7,
The upper jig and the lower jig are each formed as a pair and are formed to enclose the semi-assembly of the portion where the upper jig and the lower jig are located,
Wherein the upper jig is provided to support the upper side of the tower together with one blade installed in a half-assembly. 9. The method of claim 8,
Wherein the pair of upper jigs and the pair of lower jigs have a fixed panel movably installed on the upper and lower rails, respectively, and a rotating panel rotatably mounted on the fixed panel. The method according to claim 6,
Wherein the pair of main frames are provided with an upper auxiliary rail and a lower auxiliary rail formed by extending the upper and lower rails. An offshore wind turbine installation line for installing an offshore wind power generator on a sea installation point including a tower, a generator body provided on an upper end of the tower, and a plurality of blades rotatably provided on the generator body,
A ship body having a moon pool formed at the rear thereof;
A plurality of jacking units installed up and down on the ship main body and fixing the position of the ship main body in the sea so that the ship main body can float vertically in the sea;
A pair of main frames disposed facing each other with respect to the door frame and installed in the longitudinal direction of the ship body;
A transfer unit for drawing or withdrawing a plurality of semi-assemblies assembled with only the tower, the generator body, and one blade between the pair of main frames in an upright state; And
And blade assemblies respectively installed on the outer surfaces of the pair of main frames to assemble blades not assembled to the generator body,
Wherein the wind turbine, which is a completed assembly with the blades assembled by the blade assembly unit, is moved to the door pool through the transportation unit and installed in a key structure at a lower portion of the door pool. 12. The method of claim 11,
The transfer unit
A rail portion extending horizontally in each of the pair of main frame inner side surfaces; And
And a support member, which is attached to the semi-assembly and is movable along the pair of rail portions, and is detachably mounted on the semi-assembly. 13. The method of claim 12,
Wherein the auxiliary rail part is formed on the pair of main frames. 14. The method of claim 13,
And a supporting member which binds the offshore wind power generator installed in the foundation structure is moved to the auxiliary rail portion and housed in the auxiliary rail portion.

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