Lift-up device and method of conveying auxiliary support post

Abstract

To provide a lift-up device and a conveying method of an auxiliary support capable of efficiently installing and removing the auxiliary support.SOLUTION: The lift-up device includes an elevating part 30 configured to be elevated along the lift tower, and a pushing-up device 50 for pushing up the lift tower. The pushing-up device 50 is constituted so as to be attachable / detachable to / from a foundation 55 arranged in the ground part 5, and has an auxiliary column 51 arranged on the lower side of the lifting part 30 so as to be adjacent to the lift tower from the outside, and a first hinge part 61 having an insertable / extractable first pin 65 and pin-joining the lifting part 30 and the auxiliary column 51. When the foundation 55 and the auxiliary support column 51 are in a non-connected state and the elevating part 30 and the auxiliary support column 51 are in a joined state, the auxiliary support column 51 is configured to be rotatable in a region outside the lift tower with the first pin 65 as a rotation center so that the lower end part of the auxiliary support column 51 follows the ground part 5 according to the movement of the elevating part 30.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a lift-up device used in constructing tower-like structures such as wind turbine generators, and a method for transporting auxiliary supports used when extending a lift tower of the lift-up device. [Background technology]

[0002] A method for constructing a wind turbine, which is a tower-like structure with a rotor at the top, uses a construction method using a lift-up device, as described in Patent Document 1, for example. The lift-up device has a lift tower with four lift columns installed to surround the tower-like structure, and a lifting unit that can rise and fall along the lift tower. The lift-up device is used to transport the tower body of the wind turbine and various elemental members that make up the rotor, with the lifting unit rising and falling along the lift tower. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-12321 Summary of the Invention [Problem to be solved by the invention]

[0004] In a lift-up device, the lift tower must be extended according to the height of the tower-like structure. When extending the lift tower, auxiliary supports connected to the lifting unit are temporarily installed on the outside of the existing tower, which is the existing part of the lift tower. Then, after the existing part of the lift tower is raised using the lifting unit and auxiliary supports, a new tower is inserted below the existing part. The lift tower is then extended by connecting the new tower to the existing tower. When auxiliary supports are used when extending the lift tower in this way, efficient installation and removal of the auxiliary supports is required, with the aim of shortening the construction period being one of the goals. [Means for solving the problem]

[0005] A lift-up device for transporting element members upward when constructing a tower-like structure includes a lift tower installed around the tower-like structure, a lifting section configured to be able to move up and down along the lift tower, an auxiliary support column installed below the lifting section so as to be adjacent to the lift tower from the outside when the lift tower is extended, and a hinge section having a removable pin that connects the lifting section and the auxiliary support column. The lift-up device is configured so that the auxiliary support column can rotate around the pin in an area outside the lift tower in response to the movement of the lifting section so that the lower end of the auxiliary support column follows the above-ground section. [Effects of the Invention]

[0006] According to the present disclosure, auxiliary supports can be installed and removed efficiently. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view showing a schematic configuration of a wind power generator, which is an example of a tower-like structure constructed by an embodiment of a lift-up device. [Figure 2] FIG. 2 is a side view showing a schematic configuration of the lift-up device. [Figure 3] FIG. 3 is a top view showing a schematic configuration of the lift-up device. [Figure 4] Figure 4(a) is a side view that shows a schematic diagram of how the existing tower is raised and then the new tower is inserted, and Figure 4(b) is a top view that shows a schematic diagram of how the existing tower is raised and then the new tower is inserted. [Figure 5] FIG. 5 is a side view schematically showing the general configuration of the lifting device. [Figure 6]Figure 6(a) is a side view showing the auxiliary support pillar in a standby position, Figure 6(b) is a side view showing the auxiliary support pillar supported on the ground section and connected to the lifting section via the first hinge section, and Figure 6(c) is a side view showing the movement of the auxiliary support pillar as the lifting section rises. [Figure 7] Figure 7(a) is a diagram showing a state in which an auxiliary support pillar separated from the ground is supported with the first pin as a rotation fulcrum, and Figure 7(b) is a diagram showing a state in which the first hinge portion and the second hinge portion are joined together above the foundation. [Figure 8] Figure 8(a) is a diagram showing a schematic diagram of how the rotation direction of the auxiliary support is guided by the rotation guide, and Figure 8(b) is a diagram showing a schematic diagram of the movement of the auxiliary support when the lifting part is lowered after the lower running wheel touches the ground. DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of a lift-up device and a method for transporting an auxiliary support will be described with reference to FIGS. As shown in FIG. 1, a wind power generator 10, which is an example of a tower-like structure, includes a tower body 11, a nacelle 12, and a rotor 13.

[0009] The tower body 11 extends upward from a foundation installed on the above-ground portion 5. The tower body 11 is composed of a plurality of cylindrical bodies connected in the vertical direction, specifically a first cylindrical body 111, a second cylindrical body 112, ..., an n-th cylindrical body 11n (n is an integer of 1 or more) arranged in this order from the above-ground portion 5 side.

[0010] The nacelle 12 is attached to the top of the tower body 11. The nacelle 12 is configured to be rotatable about a rotation axis extending along the extension direction of the tower body 11. The rotating body 13 has a hub 13h and a plurality of blades 13b. The hub 13h is rotatably attached to the nacelle 12. The blades 13b are attached to the hub 13h so as to extend in a radial direction relative to the rotation axis of the hub 13h. The rotating body 13 may be assembled to the nacelle 12 after the hub 13h is transported to the top of the tower body 11 and assembled to the hub 13h. The rotating body 13 may be assembled to the nacelle 12 after the blades 13b are attached to the hub 13h and transported to the top of the tower body 11.

[0011] (Lift-up device) The lift-up device 15 used for constructing the tower body 11 and transporting the nacelle 12 will now be described.

[0012] As shown in FIG. 2, the lift-up device 15 includes a lift tower 20, a lifting unit 30, and a suspension base 40. The lift tower 20 extends vertically at a position close to the tower body 11. The lifting unit 30 is supported by the lift tower 20. The lifting unit 30 is configured to be able to rise and fall along the lift tower 20. The hoisting platform 40 is supported by the lifting unit 30. The hoisting platform 40 has a holder 41 that holds the element members to be transported. The holder 41 is configured to be adjustable in height. Note that, hereinafter, the direction corresponding to the left side of FIG. 2 is referred to as the front direction, and the direction corresponding to the right side of FIG. 2 is referred to as the rear direction. Also, the direction corresponding to the front side of the paper in FIG. 2 is referred to as the left direction, and the direction toward the back of the paper is referred to as the right direction. On the "front side," work is carried out near the ground section 5 to have the hoisting platform 40 hold the element members to be transported. Also, on the "front side," the hoisting platform 40 is positioned when the lifting unit 30 is raised or lowered.

[0013] 3, the lift tower 20 is constructed so as to surround the tower body 11 in a top view. The lift tower 20 has four lift columns 21 and a plurality of connecting beams 22.

[0014] Each of the four lift columns 21 is made up of multiple partial columns connected in the vertical direction, specifically, as shown in FIG. 2, a first partial column 211, a second partial column 212, ..., a k-th partial column 21k (k is an integer of 1 or more) arranged from the above-ground portion 5 side. A connecting beam 22 connects adjacent pairs of lift columns 21. The connecting beams 22 are arranged side by side in the vertical direction, and connect pairs of lift columns 21 at various points.

[0015] As shown in FIG. 2, the lifting section 30 has a frame body made up of a lifting frame 31, an upper frame 32, a lower frame 33, and various reinforcing frames . The lifting frame 31 is provided adjacent to the pair of lift columns 21 located in front from the outside in the left-right direction. The lifting frame 31 is supported by the lift columns 21 via lifting guides 35 provided at various locations. In this embodiment, the lifting guides 35 are provided at the lower end, center, and upper end of the lifting frame 31. The lifting guide 35 provided at the lower end is the first lifting guide, the lifting guide 35 provided at the center is the second lifting guide, and the lifting guide 35 provided at the upper end is the third lifting guide. The lifting guides 35 engage with the lifting frame 31 and the lift columns 21. The lifting guides 35 rise and fall along the lift columns 21 together with the lifting frame 31 when driven by a lifting source built into the lifting frame 31. The lifting source may be built into the lifting guides 35.

[0016] The upper frame 32 is connected to the upper end of the lifting frame 31. The upper frame 32 has a portion extending forward and a portion extending rearward from the upper end of the lifting frame 31. The lower frame 33 is connected to the lower end of the lifting frame 31. The lower frame 33 extends rearward from the lower end of the lifting frame 31. The reinforcing frames 34 appropriately connect the lifting frame 31, the upper frame 32, and the lower frame 33 to increase the rigidity of the frame body in the lifting section 30. For example, one of the reinforcing frames 34 connects the upper frame 32 and the lower frame 33 on the rear side of the lifting frame 31. Furthermore, one of the reinforcing frames 34 connects the front end of the upper frame 32 to the front end of the lower frame 33 on the front side of the lifting frame 31.

[0017] The lifting section 30 has a guide rail 37 on each of the upper frames 32. The lifting section 30 also has a stage 38 connected to the pair of upper frames 32. The guide rails 37 are laid between the front and rear ends of the upper frames 32. The guide rails 37 support a suspension frame 40 that is movable in the front-to-rear direction. The suspension frame 40 is a gate-shaped frame supported by the pair of guide rails 37. The stage 38 is provided in the area between the pair of upper frames 32 on the rear side of the tower main body 11.

[0018] In the lift-up device 15 configured as described above, the lifting unit 30 is positioned near the ground section 5 with the suspending platform 40 positioned in front of the tower body 11 (holding operation state). After that, the element to be transported is held by the holder 41 of the suspending platform 40, and the lifting unit 30 is raised along the lift tower 20 to transport the element to the desired height. Then, after the suspending platform 40 is moved along the guide rails 37 and the height of the element is adjusted by the lifting unit 30, various operations related to the element are carried out.

[0019] (About the lift tower) In the lift-up device 15, when the tower body 11 becomes taller, the lift tower 20 needs to be extended.

[0020] As shown in Figure 4(a), when extending the lift tower 20, the existing tower 25, which is the existing part of the lift tower 20, is raised to a predetermined height. After that, the new tower 26, which is the extension part of the lift tower 20, is inserted into the space below the existing tower 25. Then, the existing tower 25 and the new tower 26 are connected to extend the lift tower 20.

[0021] In connection with such extension of the lift tower 20, the lift-up device 15 has a lifting device 50 configured to be able to lift the lift tower 20 and to be able to maintain the lift tower 20 in a lifted state. The lifting devices 50 are installed on both sides of the lift tower 20 in the left-right direction.

[0022] As shown in FIG. 4(b), the lifting device 50 has auxiliary columns 51. The auxiliary columns 51 are installed adjacent to the pair of lift columns 21 located in front from the outside in the left-right direction. The auxiliary columns 51 are installed using the lifting unit 30. The auxiliary columns 51 have a height greater than that of the new tower 26.

[0023] The lift-up device 15 has slide rails 52. The slide rails 52 are used, for example, when extending the lift tower 20, to slide the new tower 26 below the raised existing tower 25. The slide rails 52 are also used, for example, when sliding the lowest part of the lift tower 20 when dismantling the lift tower 20. The slide rails 52 extend forward from the left lift column 21 and the right lift column 21 in top view.

[0024] The new tower 26 is installed on the slide rails 52 so as to be adjacent to the lift tower 20. The new tower 26 is assembled until the rear side is an open space in top view, i.e., before the pair of lift columns 21 on the rear side are connected by the connecting beams 22. The new tower 26 may be installed on the slide rails 52 after being assembled in a different location, or may be assembled on the slide rails 52. The new tower 26 is positioned directly below the existing tower 25 by sliding along the slide rails 52. Then, the pair of lift columns 21 located on the rear side are connected by the connecting beams 22. Once the connection by the connecting beams 22 is complete, the upper end of the new tower 26 and the lower end of the existing tower 25 are connected. When dismantling the lift tower 20, the removal of the lowest part of the lift tower 20 and the lifting down of the lift tower 20 by the lifting device 50 are repeated in the reverse order of the extension of the lift tower 20.

[0025] (lifting device) The lifting device 50 will be described in detail with reference to FIGS. As shown in Fig. 5, the lifting device 50 has a foundation 55 fixed to the above-ground portion 5. The foundation 55 is configured so that the lower ends of auxiliary columns 51 can be attached and detached by fastening members (not shown) made up of bolts, nuts, etc.

[0026] The lifting device 50 has a first hinge portion 61 and a second hinge portion 62. The first hinge portion 61 has an auxiliary-side first hinge 63 and a lift-down-side first hinge 64. The auxiliary-side first hinge 63 is fixed to the front upper end of the auxiliary support column 51. The lift-down-side first hinge 64 is provided on the front lower end of the lift-down frame 31. More specifically, the lift-down-side first hinge 64 may be fixed to the lift-down guide portion 35 provided at the lower end of the lift-down frame 31, or may be fixed to the lower end of the lift-down frame 31. The auxiliary-side first hinge 63 and the lift-down-side first hinge 64 are configured so that a first pin 65 can be inserted and removed in the left-right direction. The auxiliary-side first hinge 63 and the lift-down-side first hinge 64 are pin-joined by the first pin 65. The first pin 65 may be inserted and removed by an electric mechanism that can insert and remove the first pin 65 by remote control. This allows the first pin 65 to be inserted and removed safely.

[0027] The second hinge portion 62 has an auxiliary-side second hinge 66 and a lift-down-side second hinge 67. The auxiliary-side second hinge 66 is fixed to the front upper end of the auxiliary support column 51. The lift-down-side second hinge 67 is provided on the rear lower end of the lift-down frame 31. More specifically, the lift-down-side second hinge 67 may be fixed to the lift-down guide portion 35 provided at the lower end of the lift-down frame 31, or may be fixed to the lower end of the lift-down frame 31. The auxiliary-side second hinge 66 and the lift-down-side second hinge 67 are configured so that a second pin 68 can be inserted and removed in the left-right direction. The auxiliary-side second hinge 66 and the lift-down-side second hinge 67 are pin-joined by the second pin 68. The second pin 68 may be inserted and removed by an electric mechanism that can insert and remove the second pin 68 by remote control. This allows the second pin 68 to be inserted and removed safely.

[0028] When the first hinge portion 61 is in a connected state and the second hinge portion 62 is in a disconnected state, the auxiliary support column 51 is in a rotatable state in which it can rotate around the first pin 65 in the front region of the lifting frame 31. On the other hand, when both the first hinge portion 61 and the second hinge portion 62 are in a connected state, the auxiliary support column 51 is in a non-rotatable state in which it cannot rotate around the first pin 65. When the first hinge portion 61 and the second hinge portion 62 are in a connected state, the auxiliary support column 51 is connected to the lifting unit 30 so that the lifting frame 31 extends downward. The first hinge portion 61 and the second hinge portion 62 cooperate to function as a connecting portion that non-rotatably connects the auxiliary support column 51 to the lifting unit 30.

[0029] A rotation guide portion 70 is provided at the lower end of the auxiliary support column 51. The rotation guide portion 70 is used to guide the lower end of the rotatable auxiliary support column 51 in the desired rotation direction. The rotation guide portion 70 is provided to protrude forward from the auxiliary support column 51. The rotation guide portion 70 is formed so as to be able to engage with a lifting tool or the like. The rotation guide portion 70 guides the rotation direction of the auxiliary support column 51 by being towed by a towing device such as a crane.

[0030] The auxiliary support pole 51 has a lower running wheel 73 and an upper running wheel 75 as a guide mechanism for guiding the movement of the auxiliary support pole 51 along the above-ground part 5. The lower running wheel 73 is provided on the rear side of the lower end of the auxiliary support pole 51. The lower running wheel 73 is configured to be rotatable around the left-right direction. The lower running wheel 73 rolls on the above-ground part 5, thereby reducing resistance when the lower end of the auxiliary support pole 51 moves along the above-ground part 5. It is preferable that a portion of the running surface of the lower running wheel 73 is located outside the lower end surface of the auxiliary support pole 51 in the extension direction of the auxiliary support pole 51.

[0031] The upper running wheel 75 is provided on the rear side of the upper end of the auxiliary support column 51. The upper running wheel 75 is provided below the auxiliary-side second hinge 66. The upper running wheel 75 is configured to be rotatable around the left-right direction. The upper running wheel 75 rolls on the above-ground part 5, thereby reducing resistance when the upper end of the auxiliary support column 51 moves along the above-ground part 5.

[0032] Preferably, a plurality of running wheels 73, 75 are provided lined up in the left-right direction. Each of running wheels 73, 75 may be configured so that it cannot change direction depending on the rotation direction of auxiliary support column 51, or may be configured so that it can change direction.

[0033] (Installation of auxiliary supports) A description will be given of an example of a method for transporting the auxiliary support 51. Here, a method for transporting the auxiliary support 51 when it is installed will be described.

[0034] As shown in FIG. 6(a), the auxiliary support column 51 is disposed at a standby position in front of the foundation 55 so as to extend in the front-to-rear direction with its upper end positioned on the foundation 55 side. At this time, the auxiliary support column 51 is supported on the above-ground part 5 via the lower running wheel 73 and the upper running wheel 75. The lifting section 30 is disposed near the above-ground part 5.

[0035] Next, as shown in Figure 6(b), the auxiliary support column 51 is moved rearward while the running wheels 73, 75 are rolled, and then the auxiliary-side first hinge 63 and the lift-side first hinge 64 are pin-joined with the first pin 65. As a result, the upper end of the auxiliary support column 51 also rises as the lift section 30 rises.

[0036] 6(c), when the lifting unit 30 rises, the auxiliary support 51 rotates counterclockwise around the first pin 65. At this time, the upper running wheel 75 of the auxiliary support 51 leaves the ground and the upper end moves upward, and the lower running wheel 73 rolls on the above-ground part 5, and the lower end moves toward the foundation 55.

[0037] As shown in FIG. 7(a), when the lifting unit 30 is further raised, the auxiliary support column 51 rises while being supported with the first pin 65 as the rotation fulcrum after the lower running wheel 73 leaves the ground. Furthermore, because the center of gravity of the auxiliary support column 51 is located below the first pin 65, the front end of the lower end of the auxiliary support column 51 rises while being positioned further forward than the first pin 65. The lifting unit 30 rises until the lower end of the auxiliary support column 51 is positioned higher than the base 55.

[0038] As shown in FIG. 7(b), with the auxiliary support column 51 rotated rearward around the first pin 65 as the rotation center, the auxiliary-side second hinge 66 and the lift-side second hinge 67 are pin-joined with the second pin 68. This connects the auxiliary support column 51 to the lift-down section 30 in an unrotatable state. Then, the lift-down section 30 is lowered to connect the base 55 and the lower end of the auxiliary support column 51. This completes the installation of the auxiliary support column 51 (see FIG. 5).

[0039] (Removal of auxiliary supports) Another example of a method for transporting the auxiliary support column 51 will be described. Here, a method for transporting the auxiliary support column 51 when it is removed will be described. Removal of the auxiliary support column 51 is basically carried out by reversing the installation procedure described above. At the start of removal, the auxiliary support column 51 is in the state shown in FIG. 5.

[0040] When removing the auxiliary support column 51, first, the second hinge portion 62 is disengaged and the connection between the base 55 and the lower end of the auxiliary support column 51 is released. Next, the lifting unit 30 is slightly raised. As a result, as shown in FIG. 7(a), the auxiliary support column 51 is supported with the first pin 65 as the rotation fulcrum.

[0041] Next, as shown in Figure 8(a), while the lifting unit 30 is lowered, the rotation guide unit 70 is pulled by a pulling device (not shown) as indicated by arrow 80. As a result, the rotation direction of the auxiliary support column 51 around the first pin 65 as the rotation center is guided forward.

[0042] 8(b), when the lower running wheel 73 touches the ground, the descent of the lifting unit 30 is stopped, and then the rotational direction guiding using the rotation guide unit 70 is terminated. When the lifting unit 30 is then lowered, the lower running wheel 73 rolls on the above-ground part 5 as the lifting unit 30 descends, and the lower end of the auxiliary support pillar 51 moves away from the foundation 55.

[0043] When the lifting unit 30 descends to the lowest position, the lower running wheel 73 and the upper running wheel 75 come into contact with the ground (see FIG. 6(b)). After the connection between the auxiliary-side first hinge 63 and the lifting-side first hinge 64 by the first pin 65 is released, the auxiliary support column 51 is moved away from the base 55, and thereby the auxiliary support column 51 is placed in the standby position (see FIG. 6(a)).

[0044] The operation and effects of this embodiment will be described. (1) The lift-up device 15 comprises a lift tower 20 installed around the wind power generator 10, a lifting section 30 configured to be able to rise and fall along the lift tower 20, and a lifting device 50 that lifts the lift tower 20. The lifting device 50 is configured to be detachable from a foundation 55 provided on the above-ground section 5, and includes an auxiliary support 51 provided below the lifting section 30 so as to be adjacent to the lift tower 20 from the outside, and a first hinge section 61 having a removable first pin 65 that connects the lifting section 30 and the auxiliary support 51 by pin connection. When the foundation 55 and the auxiliary support 51 are in a disconnected state and the lifting section 30 and the auxiliary support 51 are in a connected state, the auxiliary support 51 is configured to be able to rotate in the area outside the lift tower 20 around the first pin 65 as a rotation center so that the lower end of the auxiliary support 51 follows the above-ground section 5 in response to the movement of the lifting section 30.

[0045] According to this configuration, when installing the auxiliary column 51, the foundation 55 and the auxiliary column 51 are uncoupled and the first hinge portion 61 is engaged. Then, by raising the lifting unit 30, the auxiliary column 51 rotates so that the lower end of the auxiliary column 51 moves along the above-ground portion 5 toward the foundation 55. Thereafter, the auxiliary column 51 is connected to the foundation 55, thereby installing the auxiliary column 51. When removing the auxiliary column 51, the foundation 55 and the auxiliary column 51 are uncoupled and the first hinge portion 61 is engaged. Then, by lowering the lifting unit 30, the auxiliary column 51 rotates so that the lower end of the auxiliary column 51 moves along the above-ground portion 5 away from the foundation 55. Thereafter, after the first hinge portion 61 is uncoupled, the auxiliary column 51 can be moved and removed. In other words, the installation and removal of the auxiliary column 51 can be performed without requiring large-scale work using a large crane or the like. As a result, it is possible to efficiently install and remove the auxiliary support column 51. Furthermore, by using an electric mechanism for the first pin 65, the connection state of the first hinge portion 61 can be switched safely and smoothly.

[0046] (2) The lift-up device 15 has a guide mechanism that guides the movement of the lower end of the auxiliary column 51 along the above-ground part 5. By providing such a guide mechanism, the lower end of the auxiliary column 51 can be smoothly moved along the above-ground part 5 when the auxiliary column 51 rotates.

[0047] (3) The guide mechanism is a lower running wheel 73 attached to the auxiliary support 51 and capable of running on the above-ground part 5. With this configuration, the movement of the lower end of the auxiliary support 51 along the above-ground part 5 can be guided by a simple mechanism.

[0048] (4) A portion of the running surface of the lower running wheel 73 is located outside the lower end surface of the auxiliary support strut 51 in the extension direction of the auxiliary support strut 51. This allows the lower running wheel 73 to smoothly touch and lift off the ground.

[0049] (5) A rotation guide portion 70 is provided on the auxiliary support column 51 to which a towing device is connected and which guides the rotation direction of the auxiliary support column 51 when towed by the towing device. This allows the auxiliary support column 51 to rotate smoothly when being removed.

[0050] (6) The lift-up device 15 has the second hinge portion 62 that is brought into a connected state when the first hinge portion 61 is in a connected state, thereby non-rotatably connecting the auxiliary support column 51 to the lift-up unit 30. This makes it easier to fix the auxiliary support column 51 to the lift-up unit 30 compared to a configuration in which the lift-up unit 30 and the auxiliary support column 51 are non-rotatably connected by fastening a fastening member. Also, by inserting and removing the second pin 68 using an electric mechanism, the connected state of the second hinge portion 62 can be switched safely and smoothly.

[0051] Furthermore, since the connection and disconnection work between the foundation 55 and the auxiliary support 51 can be performed while the auxiliary support 51 is fixed to the lifting section 30, the connection work between the foundation 55 and the auxiliary support 51 can be performed safely and smoothly.

[0052] This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility. The connecting portion is not limited to being constituted by the first hinge portion 61 and the second hinge portion 62. For example, the connecting portion may be configured to connect the lifting portion 30 and the auxiliary support column 51 regardless of whether the first hinge portion 61 is in a connected or disconnected state.

[0053] The rotation guide portion 70 does not have to be provided on the auxiliary support column 51. Even with this configuration, the auxiliary support column 51 can be rotated around the first pin 65 as the center of rotation. The guide mechanism is not limited to running wheels. For example, the guide mechanism may be a rail that is laid on the above-ground part 5 and into which the lower end of the auxiliary support 51 can be fitted, guiding the movement of the lower end of the auxiliary support 51 along the above-ground part 5.

[0054] In the lift-up device 15, it is only necessary that the auxiliary column 51 is configured to be rotatable in an area outside the lift tower 20. Therefore, the auxiliary column 51 may rotate around the second pin 68 of the second hinge part 62 as the rotation center, or may be configured to rotate in an area on the front side of the page in Figure 5. In these cases, the rotation guide part 70 is provided according to the position of the rotation area of ​​the auxiliary column 51 relative to the lift tower 20.

[0055] The tower-like structure may be any structure that is constructed by transporting element members upward using the lift-up device 15, and is not limited to the wind power generator 10, but may also be, for example, a radio tower. [Explanation of symbols]

[0056] 5...Ground section, 10...Wind turbine generator, 11...Tower body, 12...Nacelle, 13...Rotor, 13b...Blade, 13h...Hub, 15...Lift-up device, 20...Lift tower, 21...Lift support, 22...Connecting beam, 25...Existing tower, 26...New tower, 30...Lifting section, 31...Lifting frame, 32...Upper frame, 33...Lower frame, 34...Reinforcing frame, 35...Lifting guide section, 37...Guide rail , 38...stage, 40...suspension stand, 41...holding device, 50...lifting device, 51...auxiliary support, 52...slide rail, 55...foundation, 61...first hinge part, 62...second hinge part, 63...auxiliary side first hinge, 64...lifting side first hinge, 65...first pin, 66...auxiliary side second hinge, 67...lifting side second hinge, 68...second pin, 70...rotation guide part, 73...lower running wheel, 75...upper running wheel, 80...arrow.

Claims

1. A lift-up device that transports element members upward when constructing a tower-like structure, a lift tower installed around the tower-like structure; a lifting unit configured to be able to ascend and descend along the lift tower; an auxiliary support pillar installed below the lifting unit so as to be adjacent to the lift tower from the outside when the lift tower is extended; a hinge portion having a removable pin and connecting the lifting portion and the auxiliary support column by the pin; The auxiliary support is configured to be rotatable around the pin as a rotation center in the outer region of the lift tower so that the lower end of the auxiliary support follows the ground portion in response to the movement of the lifting unit. Lift-up device.

2. A guide mechanism is further provided to guide the movement of the lower end of the auxiliary pole along the above-ground portion. The lift-up device according to claim 1 .

3. The guide mechanism is a running wheel that is connected to the auxiliary support and can run on the above-ground portion. The lift-up device according to claim 2 .

4. The auxiliary support further includes a rotation guide portion that is provided on the auxiliary support and to which a traction device is connected to guide the rotation direction of the auxiliary support by traction with the traction device. The lift-up device according to claim 1 .

5. the pin is a first pin, the hinge portion is a first hinge portion, a second hinge portion having a removable second pin for connecting the lifting portion and the auxiliary support column; When the first hinge portion and the second hinge portion are in a joined state, the auxiliary support column is non-rotatably connected to the lifting portion. The lift-up device according to claim 1 .

6. A method for transporting auxiliary columns that are installed adjacent to a lift tower from the outside when the lift tower is extended and that is installed around a tower-like structure to guide a lifting section that transports element members of the tower-like structure upward, comprising: a hinge portion having a removable pin and connecting the lifting portion and the auxiliary support column by the pin; In response to the movement of the lifting section, the auxiliary support is rotated around the pin as a rotation center in the outer region of the lift tower so that the lower end of the auxiliary support follows the ground portion. How to transport auxiliary supports.

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