WO2019107600A1

WO2019107600A1 - Platform for maintenance of wind power generator

Info

Publication number: WO2019107600A1
Application number: PCT/KR2017/013830
Authority: WO
Inventors: 부정환; 양형찬
Original assignee: 한국에너지종합기술(주)
Priority date: 2017-11-29
Filing date: 2017-11-29
Publication date: 2019-06-06
Also published as: KR101868796B1

Abstract

The present invention relates to a platform for maintenance of a wind power generator and, more specifically, to a platform for maintenance of a wind power generator, the platform having a blade worktable, which includes a moving worktable for moving along a gap between side worktables, so as to move the moving worktable according to the size of a blade, thereby enabling operations for the blade to be safe, precise, and easy.

Description

Platform for maintenance of wind power generators

More particularly, the present invention relates to a platform for maintenance of a wind turbine generator, and more particularly, to a blade work platform including a moving work platform moving along a side work platform, thereby moving the movable work platform according to the size of the blade, The present invention relates to a platform for maintenance of a wind turbine generator.

Wind turbines (wind generators) are devices that convert the kinetic energy of wind into mechanical energy to produce electricity. There are various types, but the most commonly used type for recent generation is a propeller-type wind turbine in which the axis of rotation lies parallel to the direction of the wind. The propeller-type wind turbine includes a tower installed on the land or sea, a nacelle installed to rotate on the top of the tower and having a built-in generator, a plurality of blades installed to rotate in the nacelle for driving the generator, And a rotor (not shown).

The wind turbine generator may be contaminated with dirt or insects on the surface of the blades or towers during use, and scratches or cracks may occur on the blades or towers. The contamination and breakage of the wind turbine reduce energy production efficiency and require periodic cleaning, inspection, maintenance, and de-icing of the blades and towers. However, since the wind turbine is a huge structure formed at a height above the ground, there are many difficulties in maintenance, and dedicated equipment is being developed to enable maintenance of blades and towers in a safer environment.

However, most recently developed special equipment has a structure that is elevated and lowered using a wire as in the following patent documents, so that the risk of work is high and stability is low, and the space for working the blade is formed into a fixed size and shape So that it is difficult to smoothly work the blades having various bends and widths depending on their lengths.

(Patent Literature)

Registered Patent Bulletin 10-1661498 (Registered on Mar. 26, 2016) "Platform for maintenance of wind turbine generator"

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

It is an object of the present invention to provide a platform for maintenance of a wind turbine that moves a moving work table according to the size of the blade to enable safe, precise, and easy operation for the blade.

It is an object of the present invention to provide a platform for maintenance of a wind turbine generator which ensures safe, precise, and easy operation at both ends of the blade.

It is an object of the present invention to provide a platform for maintenance of a wind turbine that enables safe and precise operation of blades having various thicknesses and enables work on left and right deflecting blades.

It is an object of the present invention to provide a platform for maintenance of a wind turbine that can ensure the safety of the operator of the blade workbench.

In order to achieve the above object, the present invention is implemented by the following embodiments.

According to an embodiment of the present invention, a platform for maintenance of a wind turbine generator according to the present invention includes: a blade work station formed to surround a wind turbine blade to form a space capable of performing operations with respect to the blade; And a tower elevating device formed to be coupled to the blade work platform and being supported by the wind power generator tower and being elevated and lowered, wherein the blade work platform includes a pair of side work platforms spaced apart from and parallel to both sides of the blade, And a moving work table which is formed and moves along side work tables on both sides.

According to another embodiment of the present invention, in a platform for maintenance of a wind turbine generator according to the present invention, the movable workbench is formed such that a pair of the workbenches are formed at both ends of the side workbench and are moved separately according to the size of the blades inserted into the blade workbench .

According to another embodiment of the present invention, in a platform for maintenance of a wind turbine generator according to the present invention, the side workbench includes a movable rail which forms a space in which the movable workbench can be supported and moved inward, And the work table includes moving wheels which are inserted into the moving rails and rotate on both sides.

According to another embodiment of the present invention, in a platform for maintenance of a wind turbine generator according to the present invention, the blade workbench includes a fixed frame to which the side workbench is fixed, And a left and right moving unit for moving the moving unit.

According to another embodiment of the present invention, there is provided a platform for maintenance of a wind turbine generator according to the present invention, wherein the left and right moving unit includes left and right moving rails formed on one side of the tower lift device, And left and right moving wheels formed on the right and left moving rails.

According to another embodiment of the present invention, in the platform for maintenance of a wind turbine generator according to the present invention, the tower lift apparatuses are elevated and lowered by using an electromagnet which is alternately attached to the tower and moves up and down.

According to another embodiment of the present invention, there is provided a platform for maintenance of a wind turbine generator according to the present invention, wherein the tower platform includes a main drive part supported by the wind turbine tower and moving up and down along the tower; And a support frame which is formed to surround the tower and supports the main driving part, wherein the main driving part includes elevating parts which are mounted on the towers alternately with each other and which are elevated and lowered using an electromagnet moving in the vertical direction, A first elevating portion and a second elevating portion which are alternately lifted and lowered, elevation driving means for driving the first and second elevating and lowering portions, and elevating plates for supporting the first and second elevating and lowering elevating and driving means, Only the electromagnet formed in one of the elevating portion and the second elevating portion is attached to the tower, and the elevating driving means moves the supporting frame up and down through the elevating portion attached to the tower, Is characterized in that the electromagnet is raised and lowered in the same direction as the support frame.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

The present invention has the effect that the blade workbench includes a moving workbench that moves along the side workbenches, thereby moving the workbench according to the size of the blades to enable safe, precise, and easy operation of the blades.

According to the present invention, a pair of movable workbenches are formed at both ends of a side workbench, so that both the ends of the blade are safe, precise, and easy to work.

The present invention has the effect of making the side workbench and the movable workbench movable in the left and right direction, making it possible to perform safe and precise work on the blades having various thicknesses, and to work on the blade bending to the left and right sides.

The present invention has the effect of ensuring the safety of the operator of the blade workbench by stably lifting and lowering the tower lift device using the electromagnet.

1 is a perspective view showing an example of an operation using a platform for maintenance of a wind turbine generator according to an embodiment of the present invention;

2 is a perspective view of a platform for maintenance of a wind turbine generator according to an embodiment of the present invention.

Fig. 3 is a view for explaining an operation example of the movable workbench of Fig. 2

Fig. 4 is a perspective view for explaining the left and right moving parts of Fig.

5 is a perspective view for explaining the tower lift device of FIG. 2;

Fig. 6 is a front perspective view of the main drive part of Fig.

7 is a rear perspective view of the main drive part of Fig.

8 is a reference diagram for explaining an operation example of the elevation portion of the tower lift device

9 is a reference view for explaining another operation example of the elevation portion of the tower lift device.

Fig. 10 is a perspective view of the subordinate driving unit of Fig.

Fig. 11 is a perspective view of the frame connection portion of Fig. 5

12 is a perspective view showing an operation example of a tower lift device according to another embodiment of the present invention;

Fig. 13 is a perspective view of the main drive section of Fig.

FIG. 14 is a reference diagram for explaining an operation process of the main drive part of FIG.

Description of reference numerals used in drawings

1: blade workbench

11: side workbench 111: moving rail 12: moving workbench

121: moving wheel 13: fixed frame 14:

141: left and right moving rails 142: left and right moving wheels

3: Wind turbine tower lift device

31: main driving part 311: elevating part 311a: first elevating part

311b: second elevating portion 311c: elevating driving means 311d:

312: rotation part 313: forward / backward moving part 32:

321: winch drum 322: wire guide pulley 323: emergency control button

324: Winch receiving frame 33: Support frame 34: Operation frame

35: frame connecting portion 351: rotating body coupling 352:

Hereinafter, preferred embodiments of a platform for maintenance of a wind turbine according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Throughout the specification, when an element is referred to as "including " an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise.

1 to 11, the platform for maintenance of the wind turbine is formed so as to surround the blade (B), so that the operation for the blade (B) A blade worktable (1) forming a space in which a workpiece can be carried out; And a tower elevating device (3) formed to engage with the blade worktable (1) and supported and lifted by the wind power generator tower (T).

The platform for maintenance of the wind turbine generator according to the present invention allows the blade workbench 1 to be moved to enable safe and stable operation of the blade B having various sizes and shapes, So that stable operation of the blade (B) can be achieved by stably lifting and lowering using an electromagnet.

The blade worktable 1 is raised and lowered together with the tower lifting apparatus 3 so as to be formed in a shape surrounding the blade B. The blade worktable 1 is formed to be movable in accordance with the size or shape of the blade B. To this end, the blade worktable 11 is formed in the shape of '11' and is coupled to the tower elevating and lowering apparatus 3 A movable work table 12 formed between the side work table 11 and moving along the side work table 11, a fixed frame 13 for coupling the side work table 11 to the tower elevator 3, And a left and right movable portion 14 for moving the fixed frame 13 to the left and right.

The side workbench 11 is configured to be fixed to both sides of the blade B so that the worker can move. The side workbench 11 is coupled with the tower elevating device 3 by the fixing frame 13. Below the side workbench 11, an auxiliary driving part 32 to be described later of the tower elevating device 3 is formed so that the tower elevating device 3 can be lowered in an emergency. The movable workbench 12 is formed between the side workbenches 11 so that the movable workbench 11 can be moved along the side workbench 11 so that a movable rail 111 is formed inside the side workbench 11 do. The moving rail 111 is inserted into the side workbench 11 to a certain depth so that the moving wheel 121 of the moving workbench 12 to be described later can be inserted and moved. In addition, the side workbench 11 is movably coupled to the tower elevating device 3 so that the stationary frame 13 can move in the lateral direction depending on the shape of the blade B. A detailed description thereof will be described later.

The movable work table 12 is configured to be movable between the side work tables 11, so that movement is performed according to the size of the blade B. For this purpose, the moving worktable 12 is provided with moving wheels 121 inserted into the moving rails 111 at both sides thereof, and moves along the side worktable 11 according to the rotation of the moving wheels 121 Respectively. Further, another driving means may be connected to the mobile wheel 121 so that the mobile wheel 121 can be rotated according to the control of the operator. In addition, the movable work table 12 may be formed as a pair of the first and second movable work tables 12a and 12b at both ends of the side work table 11. 3 (b), depending on the position of the blade B, the first moving worktable 12a may be moved close to the blade B, or as shown in FIG. 3 (c) The second moving workbench 12b can be moved close to the blade B. [ Accordingly, the operator can move closer to the blade (B) to carry out the maintenance work, thereby making the work more safe and precise.

The fixing frame 13 is configured to be coupled with and supported by the side workbench 11 on the lower side of the side workbench 11 so as to be coupled to a support frame 33 to be described later of the tower elevating device 3. [ Particularly, the fixing frame 13 can be moved along the support frame 33, so that the side workbench 11 can be moved in the left-right direction.

The left and right moving part 14 is configured to move the side frame 11 and the movement table 12 in the left and right direction by coupling the fixed frame 13 to the support frame 33 so as to move left and right. The side workbench 11 can be positioned close to the blade B in accordance with the thickness of the blade B or even when the blade B is not formed as a straight line and bent leftward and rightward. To this end, the left and right movable part 14 includes left and right moving rails 141 formed to be inserted into the supporting frame 33 side coupled to the fixed frame 13 at a predetermined depth along the lateral direction as shown in FIG. 4, And left and right moving wheels 142 formed on the fixed frame 13 and moving along the left and right moving rails 141. Therefore, the fixed frame 13 is moved left and right along the support frame 33 by using the left and right movement wheels 142, so that the side workbench 11 can be moved in the lateral direction.

The tower elevating and lowering apparatus 3 is configured to be elevated along the tower T. Unlike a conventional method of elevating and lowering using a wire, the tower elevating and lowering apparatus 3 can be stably raised and lowered using an electromagnet attached to the tower T. Therefore, it is possible to perform a safe and stable operation even in a windy environment in which a wind turbine is installed. To this end, the tower elevating device 3 includes a main driving part 31 supported by the tower T and moving up and down along the tower T as shown in FIG. 5; An auxiliary drive unit (32) for raising and lowering the lift device for emergency when the main drive unit (31) is inoperable; A support frame (33) formed to surround the tower (T) and supporting the main driving part (31); A work frame (34) formed to be connected to the support frame (33) and providing a work space; And a frame connector 35 connecting the frames.

The main driving part 31 is configured to enable upward and downward movement of the tower lifting device 3 along the tower T so that the electromagnet attached to the tower T can be moved up and down, It is possible to stably fix the electromagnet and move it up and down irrespective of the size and curvature of the magnet (T). To this end, the main drive part 31 includes a lift part 311 for moving the electromagnet up and down, a rotation part 312 for rotating the electromagnet, a front and rear parts for moving the electromagnet back and forth in the direction toward the tower T, (313).

The elevating portion 311 is configured to vertically move the electromagnet to elevate and lower the supporting frame 33 and the working frame 34. Preferably, the elevating portion 311 includes a first elevating portion The tower elevating device 3 can be moved up and down by the intersection of the electromagnets including the first elevating portion 311a and the second elevating portion 311b. The first and second elevating

parts

311a and 311b include electromagnets, elevating members, elevating bars, and elevating / lowering supporting bars, respectively. Since the first and second elevating

parts

311a and 311b can move up and down, And avoid duplicate descriptions. The electromagnets of the first and second elevating

parts

311a and 311b move in opposite directions to enable the tower elevating device 3 to be moved up and down using electromagnets. The elevating

portions

311a and 311b can be operated simultaneously by the elevating driving means 311c. The first and second elevating

portions

311a and 311b and the elevating and moving means 311c are supported by the elevating plate 311d to move the elevating plate 311d in accordance with the operation of the first and second elevating

portions

311a and 311b. And the lift plate 311d is connected to the support frame 33 so that it can be moved up and down together. Further, as shown in FIG. 5, the elevating units 311 may be formed four on each side of the tower T, so that more stable elevation can be achieved. A detailed description thereof will be described later.

The first elevating part 311a includes a first electromagnet 311a-1, a first elevating member 311a-2, a first elevating steel bar 311a-3 and a first elevating supporting bar 311a-4 So that it is possible to move up and down along the tower (T). More precisely, the first elevating member 311a-2 is moved upward and downward in accordance with the rotation of the first elevating bar 311a-3. The first elevating member 311a is connected to the elevating driving means 311c, And the first electromagnet 311a-1 coupled with the first elevating member 311a-2 also moves in the vertical direction. At this time, when the first electromagnet 311a-1 is attached to the tower T, the first electromagnet 311a-1 can not move, so that the first elevating bar 311a-3 moves in the vertical direction, The lifting and lowering of the lifting plate 311d combined with the first lifting bar 311a-3 is performed.

The first electromagnet 311a-1 may be formed of a permanent magnet having a magnetic force and is attached to the tower T so that the tower elevating device 3 is fixed to the tower T. [ The first electromagnet 311a-1 is pressed against the tower T by being pushed toward the forward and backward moving parts 313 in the direction of the understanding tower T and away from the tower T so that the first electromagnet 311a- The vertical movement can be performed. The first electromagnet 311a-1 is coupled to the first elevating member 311a-2 and is elevated and lowered together. Particularly, the first electromagnet 311a-1 is rotatably coupled to the first elevating member 311a- So that the tower T can be compressed.

The first elevating member 311a-2 is inserted into the first elevating bar 311a-3 and the first elevating bar 311a-4 and moves up and down according to the rotation of the first elevating bar 311a-3 , And the first electromagnet 311a-1 can be coupled and elevated together. In addition, the first elevating member 311a-2 includes the first hinge member 311a-2 'so that the first electromagnet 311a-1 can be rotatably engaged.

The first elevating member 311a-3 is formed to have a predetermined length in the up-and-down direction. The first elevating member 311a-2 is inserted and moved up and down according to the rotation of the first elevating rod 311a- do. For this purpose, the first wicking rods 311a-3 may be formed with threads on the outer circumferential surface. When the first electromagnet 311a-1 is attached and fixed to the tower T, the first worm 311a-3 is supported by the lifting plate 311d and is fixed. When the rigid bar 311a-3 rotates, the first wicking rods 311a-3 move up and down the lift plate 311d, and the support frame 33 connected to the lift plate 311d, The frame 34 is also raised and lowered.

The first elevating support rods 311a-4 may be formed parallel to both sides of the first elevating rods 311a-3, and the first elevating members 311a-2 may be inserted and elevated. The first elevating support rods 311a-4 may also be fixed to the elevating plate 311d and the first elevating members 311a-2 may be supported to allow stable elevation.

The second elevating portion 311b includes a second electromagnet 311b-1, a second elevating member 311b-2, a second elevating steel rod 311b-3, and a second electromagnet 311b-3 which are the same as the first elevating portion 311a. The elevating support bar 311b-4 has the same construction as the elevating support bar 311b-4, and thus a repetitive description thereof will be omitted. However, it is preferable that the second electromagnet 311b-1 of the second elevating portion 311b is moved up and down in the direction opposite to the first electromagnet 311a-1. For example, when the first electromagnet 311a-1 is attached to the tower T, if the first elevating bar 311a-3 is rotated so that the first electromagnet 311a-1 moves in the descending direction, The first lift rods 311a-3 move upward and the support frames 33 move upward as well. At this time, the second electromagnets 311b-1 move in the same upward direction as the support frame 33 So that it can be attached continuously to the tower (T), thereby enabling a continuous rise along the tower (T). Therefore, the second electromagnet 311b-1 can be attached to the tower T alternately with the first electromagnet 311a-1 so that the second electromagnet 311b-1 can be moved up and down along the tower T of the tower elevating apparatus 3. The first wicking rods 311a-3 and 311b-3 are simultaneously rotated in the same direction by the raising and lowering driving means 311c, so that the first wicking rods 311a- It is preferable that the first and second widening rods 311b-3 and 311b-3 have thread threads in mutually opposite directions so that the first electromagnets 311a-1 and the second electromagnets 311b-1 move in mutually opposite directions.

More specifically, the first elevating bar 311a-3 and the second elevating bar 311b-3 are rotated to move the first electromagnet 311a-3 and the second elevating bar 311b- 311a-1 and the second electromagnet 311b-1 in the up and down direction so that the tower elevating apparatus 3 can be raised and lowered. The elevation driving means 311c can operate the first elevating portion 311a and the second elevating portion 311b at the same time to simplify the structure of the apparatus so that the weight of the elevating portion 311 So that stable movement of the tower elevating and lowering apparatus 3 can be achieved, manufacturing cost and consuming power can be reduced, and control of the apparatus can be facilitated. To this end, the elevation driving means 311c includes an elevation driving motor 311c-1 for providing power to be elevated, a driving sprocket 311c-2 connected to the elevation driving motor 311c-1 and rotated, And a driven sprocket 311c-3 connected to the drive sprocket 311c-2 by a chain or the like and rotating together with the rotation of the drive sprocket 311c-2.

The elevation driving motor 311c-1 is formed of a motor capable of rotating the driving sprocket 311c-2 and is supported by the elevating plate 311d and operated by a separate control device (not shown) Lt; / RTI >

The driving sprocket 311c-2 rotates in accordance with the operation of the elevation driving motor 311c-1 and is connected to the driven sprocket 311c-3 by a chain or the like. The drive sprocket 311c-2 may be connected to any one of the first and second driven sprockets 311c-3 'and 311c-3 "described later. However, the drive sprocket 311c- And may be connected to each of the sprockets 311c-3 ', 311c-3 ".

The driven sprocket 311c-3 is connected to the drive sprocket 311c-2 by a chain or the like and rotates together. The first driven sprocket 311c-3 And a second driven sprocket 311c-3 "formed on the second wicking rods 311b-3. The first driven sprockets 311c-3 'are formed as a pair, And the pair of first driven sprockets 311c-3'may be rotated together so that the driving sprocket 311c-2 can be connected to the sprocket 311c-2 and the second driven sprocket 311c- The first driven sprocket 311c-3 'and the second driven sprocket 311c-3 "can be rotated together at the same time according to the rotation of the first driven sprocket 311c-3' The first elevating rod 311a-3 and the second elevating rod 311b-3 can be rotated at the same time, so that the structure of the apparatus can be simplified and the tower elevating apparatus 3 can be quickly lifted and lowered .

The lifting plate 311d supports the first and second lifting bars 311a-3 and 311b-3 and the lifting and driving means 311c. The first and second lifting bars 311a-3 and 311b- And is formed as a plate having a predetermined area formed perpendicular to the paper surface. The elevating plate 311d is coupled with the first and second elevating bars 311a-3 and 311b-3 and elevated and lowered together with the elevating and lowering bars 311a-3 and 311b-3. The support frame 33 can be raised and lowered. The rotating portion 312 and the forward and backward moving portion 313 are formed on the rear surface of the lifting plate 311d and rotate in the vertical direction according to the operation of the rotating portion 312 to cope with the bending of the tower T And is moved away from or close to the tower T by the forward and backward moving parts 313 so as to cope with the size change of the tower T. [

The rotating unit 312 rotates the lifting plate 311d in the vertical direction so that the first and second electromagnets 311a-1.311b-1 can rotate in the vertical direction, The first electromagnet 311a-1 or the second electromagnet 311b-1 is brought into close contact with the tower T so that the first electromagnet 311a-1 or the second electromagnet 311b-1 can be stably fixed. 7, the rotating unit 312 includes a rotating cylinder arm 312a connected to the lifting plate 311d and moving forward or backward according to the operation of the rotating cylinder 312b, And a first and a second hinge bars 312c and 312d that allow the rotation unit 312 to be rotatably connected to the lift plate 311d and the support frame 33. [

The rotary cylinder arm 312a is configured to move forward or backward according to the operation of the rotary cylinder 312b and has one end connected to the upper side of the rear surface of the elevating plate 311d, Or can be rotated in the vertical direction of the lifting plate 311d in accordance with the backward movement. More precisely, the rotating cylinder arm 312a is rotatably connected to the first hinge bar 312c so as to smoothly rotate the lifting plate 311d.

The rotary cylinder 312b is configured to move the rotary cylinder arm 312a forward or backward and one end thereof is connected to the support frame 33 and more precisely to the second hinge bar 312d As shown in Fig.

The first and second hinge bars 312c and 312d are configured to allow the rotation unit 312 to be rotatably coupled to the lift plate 311d and the support frame 33, And the second hinge bar 312d protrudes upward from the support frame 33 and is rotatably coupled to the rotary cylinder arm 312a and the rotary cylinder 312b, . Therefore, the rotation of the lifting plate 311d through the rotation part 312 can be smoothly performed

The back and forth moving part 313 pushes or pulls the lifting plate 311d toward the tower T so that the electromagnet can be pressed against the tower T irrespective of the size of the tower T. [ The forward and backward moving part 313 includes a moving cylinder arm 313a which is coupled to the rear surface of the lifting plate 311d and the electromagnet is moved forward or backward in the tower T ) Or away from the tower (T). The moving cylinder arm 313a is supported by the support frame 33 and is moved up and down together with the lift plate 311d and the support frame 33. Accordingly, when the lift plate 311d moves up and down, It can be ascended or descended. A separate driving cylinder (not shown) is connected to the moving cylinder arm 313a so that the moving cylinder arm 313a can be moved forward and backward.

8, the second electromagnet 311b-1 is attached to the tower T, and the second electromagnet 311b-1 is mounted on the second electromagnet 311b- Assuming that the first electromagnet 311a-1 is not attached to the tower T, the operation of the elevation driving means 311c is started in a state as shown in Fig. 8 (a) , The two-shaft rigid rods 311a-3 and 311b-3 start rotating. The second electromagnet 311b-1 tries to descend along the second wicking rods 311b-3 in accordance with the rotation of the first and second wicking rods 311a-3 and 311b-3, Will have a movement to rise along the first wicking rods 311a-3. At this time, since the second electromagnet 311b-1 is attached to the tower T, the lifting plate 311d is lifted as shown in FIG. 8 (b) (311a-1) also rise like the lift plate 311d. When the first electromagnet 311a-1 rises to the upper end of the first wicking rods 311a-3 as shown in FIG. 8 (c), the first electromagnet 311a-1 And the second electromagnet 311b-1 is detached from the tower T and is ready for the next rise. The lifting and lowering of the lifting plate 311d is performed while the first and second electromagnets 311a-1 and 311b-1 are alternately attached to the tower T. The supporting frame 331d connected to the lifting plate 311d And the lifting and lowering of the work frame 34 are performed together, and the tower can be raised and lowered along the tower T of the tower elevating device 3. [

Four of the elevating portions 311 may be formed on each side of the tower T. The electromagnets of the four elevating portions 311 may be attached to the tower T so as to be elevated. The lifting and lowering along the tower T can be performed in such a manner that the electromagnets of the pair of elevating and lowering portions 311 facing each other are alternately attached to the tower T as shown in FIG. 9 (a), the elevation driving means 311c is operated in a state in which the electromagnets of the two elevating and lowering sections 311 are attached, so that the lifting and lowering of the elevating plate 311d and the supporting frame 33 And then the electromagnets of the remaining two elevating and lowering sections 311 can be attached to the tower T as shown in FIG. 9 (b). At this time, the elevation driving means 311c of the elevating and lowering portion 311 can simultaneously operate all of the elevating and lowering means 311. Thus, during lifting and lowering of the supporting frame 33 by the elevating portion 311 attached to the tower T, The electromagnet of the elevating portion 311 that is not attached to the tower T is also raised and lowered so that the elevating and lowering can be performed quickly.

Of course, as shown in FIG. 9 (c), the elevating portion 311 is not limited to a pair of elevating portions 311 facing each other, but only two adjacent elevating portions 311 So that the elevating and lowering can be performed while being attached to the tower (T). At this time, the first and second elevating

portions

311a and 311b of the elevating and lowering portions 311 are alternately attached to the tower T and the elevating and lowering of the supporting frame 33 is performed.

The auxiliary driving unit 32 is configured such that when the operation of the main driving unit 31 is disabled, the operator can lower the tower elevating apparatus 3, thereby assuring the safety of the operator in an emergency. The auxiliary drive unit 32 includes a winch drum 321 around which wire is wound, a wire guide pulley 322 for guiding the wire, a emergency control button 323 for operating the winch drum 321, a winch drum 321 And a winch receiving frame 324 for receiving the winch receiving frame 324. Therefore, in the emergency in which the main driving part 31 does not operate, the operator located in the working frame 34 or the blade worktable 1 presses the emergency control button 323 to operate the winch drum 321, The wires wound on the winch drum 321 are released according to the operation of the tower lifting device 3, so that the tower lifting device 3 can be lowered.

The supporting frame 33 supports the main driving part 31 and may be formed in a square shape so as to surround the tower and the elevating part 311 may be formed at each corner. The moving cylinder arm 313a is supported and elevated together with the supporting frame 33 and the moving cylinder arm 313a is coupled with the elevating plate 311d so that the supporting frame 33 is lifted and lowered . A work frame 34 may be formed outside the support frame 33 to allow maintenance work to be performed on the tower T. [

The work frame 34 is configured to form a space in which a worker can be positioned, and is coupled to the support frame 33 so that the work frame 34 can be raised and lowered together. The work frame 34 may also be formed to surround the tower T to enable work on the tower T. [

The frame connection part 35 is configured to connect the frames constituting the tower elevating device 3 such as the support frame 33 and the work frame 34 with each other so as to facilitate connection and disassembly. 11, the rotor assembly 351 and the fixed coupling portion 352 are included. The rotatable body 351 is fixed to one side of the frame and the stationary engaging part 352 is fixed to the other side of the frame so that the rotatable body 351 and the stationary engaging part 352 are engaged with each other. .

The rotating body assembly 351 includes a fixed plate 351d fixed to one frame and a rotating bar 351a coupled to the fixed plate 351d such that the rotating bar 351a is rotatably coupled to the fixed plate 351d. A hinge plate 351c for holding the rotary bar 351a and an assembling lever 351b formed at the end of the rotary bar 351a so as to be grasped. Therefore, the rotary bar 351a is held by the assembly lever 351b to be inserted into the fixed engaging portion 352, or more precisely, the rotary bar inserting groove 352a-1 to be described later of the fixed engaging portion 352 So that it is possible to easily combine and disassemble frames.

The fixed joint 352 is formed on the other frame and is coupled to the rotary joint 351. The fixed joint 352 includes a support plate 352a fixed to the other frame and a rotation bar 351a inserted into the support plate 352a The support plate 352a includes a rotation bar insertion groove 352a-1 into which the rotation bar 351a is inserted and a rotation bar insertion groove 352a-1 through which the rotation prevention pin 352b is inserted And a pin insertion port 352a-2. Therefore, the rotation bar 351a is inserted into the rotation bar insertion groove 352a-1. The detachment prevention pin 352b is inserted into the pin insertion port 352a-2 so that the rotation bar 351a inserted into the rotation bar insertion slot 352a-1 can be fixed, And a bent portion 352b-1 formed to be bent to prevent the detachment prevention pin 352b from being detached from the pin insertion port 352a-2.

12 to 14, unlike the embodiment, the main driving part 36 is lifted and lowered along the tower T by using wheels. The main driving part 36 according to another embodiment of the present invention will be described with reference to FIGS. Respectively. The main driving part 36 may be configured to form a pair of the first and second main driving

parts

361 and 362 on the upper and lower sides so that stronger compression and stable movement of the tower T can be achieved. Since the first and second

main drive portions

361 and 362 have the same configuration, only the first main drive portion 361 will be described. The main driving part 36 may be formed one by one on each side of the tower T and may be moved up and down together with the main body being compressed by the tower T. [

The first main driving part 361 includes a first wheel part 361a which is pressed and raised by the tower T and a first pressing part 361b which presses the first wheel part 361a against the tower T, And a first sliding portion 361c for rotating the first wheel portion 361a so as to correspond to the bending and size of the tower T. [

The first wheel portion 361a is connected to a first wheel drive motor 361a-1 for driving the first lift wheel 361a-1 and the first lift wheel 361a- 361a-2. Accordingly, the first elevating wheel 361a-1 is rotated and moved along the tower T in accordance with the operation of the first wheel driving motor 361a-2, and a wheel driving motor is formed for each elevating wheel, .

The first pressing portion 361b is configured to provide a force to push or pull the first elevating wheel 361a-1 in the direction of the tower T. The first pressing cylinder 361b-1 and the first pressing cylinder 361b- And a first pressurizing cylinder arm 361b-2 protruded or drawn by the first pressurizing cylinder 361b-1.

The first pressurizing cylinder 361b-1 is rotatably connected to the support frame 33 so that the first pressurizing cylinder arm 361b-2 projects and draws the first pressurizing cylinder 361b- So that the first elevating wheel 361a-1 can be moved toward or away from the tower T depending on the size of the tower T. [

The first pressurizing cylinder arm 361b-2 protrudes from the first pressurizing cylinder 361b-1 or enters the first pressurizing cylinder 361b-1 in accordance with the operation of the first pressurizing cylinder 361b-1 2 to be described later of the first sliding portion 361c so as to be able to slide along the guide rod 361c-1. Therefore, the first elevating wheel 361a-1 can be naturally pressed against the tower T even in various bends of the tower T, so that stable movement can be performed.

The first sliding portion 361c is formed between the first elevating wheel 361a-1 and the first pressing portion 361b to rotate the first elevating wheel 361a-1 So that the first elevating wheel 361a-1 can be pressed against the tower T even in the size and bend of the tower T. The first sliding portion 361c includes a first guide rod 361c-1 for connecting the first elevating wheel 361a-1 and the first pressing cylinder arm 361b-2, A first sliding member 361c-2 inserted and sliding in the first pressing cylinder arm 361c-1 so as to be rotatably connected to the first pressing cylinder arm 361b-2, a first sliding member 361c- And a hinge member 361c-3 rotatably connected to the support frame 331a-1. Accordingly, the first sliding member 361c-2 is freely slidable along the first guide rod 361c-1 in accordance with the projection and the drawing of the first pressing cylinder arm 361b-2, So that the elevating wheel 361a-1 can be rotated smoothly. Accordingly, the first elevating wheel 361a-1 can be pressed against the tower T regardless of the size and the bend of the tower T, and can be stably lifted and lowered.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as falling within the scope of.

Claims

A blade worktable formed to surround the blade of the wind turbine and forming a space in which a work for the blade can be performed; And a tower elevating device formed to be coupled to the blade work platform and being supported by the tower of the wind turbine and being elevated,

Wherein the blade workbench includes a pair of side workbenches spaced apart from each other at both sides of the blade and a movable workbench formed between the side workbenches and moving along the side workbenches on both sides platform.
The apparatus of claim 1,

Wherein the pair of side plates are formed at both ends of the side table so as to be moved independently according to the size of the blades inserted into the blade table.
The apparatus of claim 1, wherein the side workbench

And a movable rail which forms a space in which the movable workbench is supported and movable inward,

Wherein the movable workbench includes a moving wheel that is inserted into the movable rail and rotates on both sides thereof.
The apparatus of claim 1, wherein the blade worktable

Wherein the platform includes a fixed frame to which the side workbench is fixed and a left and right moving unit that is supported by the tower elevation device to move in the left and right direction.
5. The apparatus according to claim 4, wherein the left-right moving unit

A left and right moving rails formed on one side of the tower lift device and having a predetermined space in a left and right direction and left and right moving wheels formed on the fixed frame and moving along the left and right movement rails.
2. The system of claim 1, wherein the tower platform

Wherein the platform is mounted on the tower alternately and elevated and lowered using an electromagnet moving in the vertical direction.
The system of claim 6, wherein the tower platform

A main section supported by the wind power generator tower and moving up and down along the tower; And a support frame formed to surround the tower and supporting the main driving part,

Wherein the main driving part includes elevating parts attached to the towers alternately and elevated and lowered using an electromagnet moving in the vertical direction,

The elevating and lowering unit includes a first elevating unit and a second elevating unit that are alternately raised and lowered, elevation driving means for driving the first and second elevation units, and a lift plate for supporting the first and second elevation and elevation driving means ,

Only the electromagnet formed on one of the first elevating portion and the second elevating portion is attached to the tower,

Wherein the elevation driving means causes the support frame to be raised and lowered through the elevation portion attached to the tower and the electromagnet to be elevated and lowered in the same direction as the support frame through the elevation portion not attached to the tower.