Lifting scaffold device for tower-like structure

Abstract

To provide a lifting scaffold device for a tower-like structure, in which the lifting scaffold is located near the periphery of a tower body and can be raised and lowered regardless of the height position of the lifting scaffold.SOLUTION: A wind power generation device 1 includes a tower body whose outer diameter decreases linearly upward over the entire length, a nacelle provided at the upper end of the tower body, and a wind turbine made of a plurality of plates supported by the nacelle. A lifting scaffold device for a tower-like structure 10 includes first and second guide columns 11A, 12B on one side of a tower body 2 and third and fourth guide columns 11C, 11D on the other side, which are respectively parallel to each other and inclined and erected on four sides of the tower body 2 to match the inclination of the tower body 2, and is provided with a first lifting scaffolding 12A that rises and falls and has a lifting guide that engages with the first and second guide columns 11A, 12B and a first lifting drive unit 13A, and a second lifting scaffolding 12B that rises and falls and has a lifting guide that engages with the third and fourth guide columns 11C, 11D and a second lifting drive unit 13B.SELECTED DRAWING: Figure 1A

Description

[Technical field]

[0001] The present invention relates to a lifting scaffolding device for, for example, a tower-like structure, and more particularly to a lifting scaffolding device for, for example, a tower-like structure for repair, part replacement, dismantling, etc., of a tower structure having a truncated cone shape. [Background technology]

[0002] Patent Document 1 proposes a lifting scaffolding device to be installed inside a tower for dismantling the tower of a wind power generator. Patent Document 2 proposes a method for lowering blades in dismantling a tower-type wind power generation facility that includes a tower body and a wind power generator with a windmill with multiple blades radially installed at the upper end of the tower body. Patent Document 3 proposes a lifting scaffolding device equipped with an extending scaffold that can slide freely over the lifting scaffold. For a wind power generation facility equipped with a tower body whose outer diameter linearly decreases upward over its entire length, no lifting scaffolding device has been proposed to be installed on the outside of the tower body for repair, part replacement, or dismantling the tower body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication WO2019 / 116511 [Patent Document 2] Patent Publication No. 2022-149531 [Patent Document 3] Patent Publication No. 2015-55063 Summary of the Invention [Problem to be solved by the invention]

[0004] As for a lifting scaffolding device to be installed on a tower body whose outer diameter decreases linearly upward along its entire length, even if the lifting scaffolding is close to the tower body and has a sufficient area at the lower part of the tower body where the diameter is larger, when the lifting scaffolding rises vertically upward to correspond to the upper part of the tower body where the diameter is smaller, the distance between the upper part of the tower body and the lifting scaffolding becomes large, resulting in the lifting scaffolding falling outside the work area and being unable to be used effectively.

[0005] According to the lifting scaffolding device of Patent Document 3, a scaffold is secured by extending an overhanging scaffold between the lifting scaffold and the top of the tower body, where the distance between them becomes greater; however, since the overhanging scaffolding has a narrow width and is located in a specific position and is not configured to be movable to any other position, the scaffolding area required for repairs, part replacement, or dismantling of the tower body is far insufficient, and therefore the lifting scaffolding device cannot be used as a lifting scaffolding device for tower-like structures that include a tower body.

[0006] The present invention has been devised to solve the above problems, and has an object to provide a lifting scaffolding device for tower-like structures that rises and falls so that the lifting scaffolding has a necessary and sufficient scaffolding area near the periphery of the tower body regardless of the height position of the lifting scaffolding. [Means for solving the problem]

[0007] In setting out to solve the above-mentioned problems, the inventor first came up with the idea of ​​a climbing scaffolding device for tower-like structures, for example for repairing and replacing parts of a wind power generation equipment having a tower body whose outer diameter gradually decreases toward the top over its entire length (frustum-shaped), or for dismantling the tower body.

[0008] The conclusion drawn from this is that the lifting scaffolding device for tower-like structures according to the present invention is, for example, a lifting scaffolding device for a wind power generation device, and is a lifting scaffolding device for tower-like structures for repair and part replacement or for dismantling the tower of a wind power generation device having a tower body whose outer diameter decreases linearly upward along its entire length (frustum-shaped), a nacelle provided at the upper end of the tower body 2, and a wind turbine consisting of a number of plates supported by the nacelle.

[0009] That is, in order to solve the above-mentioned problems, the climbing scaffolding device for tower-like structures according to a first aspect of the present application is a climbing scaffolding device for tower-like structures for repairing and replacing parts of a wind power generation device, and / or for dismantling the tower, the climbing scaffolding device comprising a tower body whose outer diameter linearly decreases upward over the entire length of its outer surface, a nacelle provided at the upper end of the tower body, and a wind turbine made of a plurality of plates supported by the nacelle, the climbing scaffolding device for tower-like structures being used for repairing and replacing parts of a wind power generation device and / or for dismantling the tower body, the climbing scaffolding device comprising a tower body whose outer diameter linearly decreases upward over the entire length of its outer surface, a nacelle provided at the upper end of the tower body, and a wind turbine made of a plurality of plates supported by the nacelle, the climbing scaffolding device comprising a tower body having a first and second guide column on one side of the tower body and a third and fourth guide column on the other side of the tower body, the first and second guide columns on one side of the tower body being erected on all four sides of the tower body, the first and second guide columns on one side of the tower body being inclined so that the distance between the first and second guide columns and the tower body is approximately constant so as to match the vertical inclination of the outer surface of the tower body, The configuration includes a first lifting scaffold having a lifting guide that engages with a second guide column, a first lifting drive unit that raises and lowers the first lifting scaffold, the first lifting scaffold including a pinion provided on the first lifting scaffold, a motor that rotates the pinion, and a rack provided on the first and second guide columns extending in the vertical direction and meshing with the pinion, a second lifting drive unit that raises and lowers the second lifting scaffold, the second lifting scaffold having a lifting guide that engages with the third and fourth guide columns, a pinion provided on the second lifting scaffold, a motor that rotates the pinion, and a rack provided on the third and fourth guide columns extending in the vertical direction and meshing with the pinion.

[0010] As a second aspect of the present application, in the first aspect, the first and second lifting scaffolds may be arranged to protrude outward from the two corresponding guide columns, and based on a relationship in which the distance between the two guide columns on one side and the two guide columns on the other side approaches each other as they go upward, they may be configured to be spaced a required distance apart at a low position, approach each other as they go upward, and approach each other at a top position so as to be close enough to not substantially interfere with the blades and nacelle of the wind power generation device.

[0011] As a third aspect of the present invention, in the first aspect, each of the guide columns may be configured by joining together a plurality of guide column constituent members of a required length.

[0012] As a fourth aspect of the present application, in the first aspect, the first guide column and the third guide column may be configured to be erected on both sides of the nacelle closer to the tower body than the blade when one wing of the blade is positioned in a hanging state between both guide columns.

[0013] As a fifth aspect of the present application, in the first aspect, the first guide column and the third guide column, as well as the second guide column and the fourth guide column, may be connected by first connecting members having different connecting lengths with a deviation of a required value for each diameter value of the tower body at a plurality of installation positions having different heights over the entire vertical length, so that the first guide column and the third guide column face each other at an incline so as to have a required separation dimension that is approximately equal at any height position relative to the tower body, and the second guide column and the fourth guide column face each other at an incline so as to have a required separation dimension that is approximately equal at any height position relative to the tower body.

[0014] As a sixth aspect of the present application, in the first aspect, the first guide column and second guide column on one side and the third guide column and fourth guide column on the other side may be connected by a plurality of second connecting members of a required length at a plurality of installation positions over the entire length in the vertical direction, so that the first and second guide columns are approximately parallel to each other and the third and fourth guide columns are approximately parallel to each other.

[0015] As a seventh aspect of the present application, in the first aspect, a ceiling tower may be protruded above upper ends of the first to fourth guide columns, and an overhead traveling crane may be provided on the ceiling tower.

[0016] As an eighth aspect of the present application, in the seventh aspect, the overhead traveling crane may further include an X-direction traveling beam that is guided by the overhead tower and travels in the X-direction, a Y-direction traveling table that is guided by the X-direction traveling beam and travels in the Y-direction, and an electric winch provided on the Y-direction traveling table.

[0017] As a ninth aspect of the present application, in the eighth aspect, a ceiling lifting crane may be further provided at an end of the ceiling tower.

[0018] As a tenth aspect of the present application, in the first aspect, at least one of the first lifting scaffold and the second lifting scaffold may further include a scaffold position lifting crane. Effect of the Invention

[0019] According to each aspect of the present invention, it is possible to provide a lifting scaffolding device for a tower-like structure that rises and falls so that the lifting scaffolding has a necessary and sufficient scaffolding area near the periphery of the tower body regardless of the height position of the lifting scaffolding. [Brief description of the drawings]

[0020] [Figure 1A] 1 is a front view showing a tower-like structure lifting scaffolding device according to an embodiment of the present invention. FIG. [Figure 1B] 1 is a right side view showing a tower-like structure lifting scaffolding device according to an embodiment of the present invention. FIG. [Diagram 2] 1B is a plan view corresponding to FIG. 1A when the lifting scaffold of the tower-like structure lifting scaffold device according to the embodiment of the present invention is at the highest height. FIG. [Diagram 3] 1B is a cross-sectional view taken along line III-III of FIG. 1A when the lifting scaffold of the tower-like structure lifting scaffold device according to the embodiment of the present invention is at the highest height. [Figure 4] FIG. 2 is a rear view corresponding to the front view of FIG. 1B, showing a tower-like structure lifting scaffolding device according to an embodiment of the present invention. [Diagram 5] FIG. 2 is a plan view showing details of the lifting guide and the lifting drive unit of the lifting scaffolding device for a tower-like structure according to an embodiment of the present invention. [Figure 6] FIG. 1 is a plan view showing a tower-like structure lifting scaffolding device according to an embodiment of the present invention, illustrating the state in which a bridge scaffolding is being set up. [Figure 7A] FIG. 2 is a plan view showing a first step of a method for constructing a lifting scaffolding device for a tower-like structure according to an embodiment of the present invention. [Figure 7B] FIG. 2 is a plan view showing a second step in a method for constructing a lifting scaffolding device for a tower-like structure according to an embodiment of the present invention. [Figure 7C] FIG. 2 is a plan view showing a third step in a method for constructing a lifting scaffolding device for a tower-like structure according to an embodiment of the present invention. [Figure 7D] FIG. 11 is a plan view showing a fourth step in a method for constructing a lifting scaffolding device for a tower-like structure according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, a lifting scaffolding device for a tower-like structure according to an embodiment of the present invention will be described with reference to the drawings.

[0022] [Tower-like structure] 1A, 1B, and 1C show a wind turbine generator as an example of a tower-like structure that can be used with the lifting scaffolding device according to the embodiment of the present invention. The wind turbine generator 1 includes a tower body 2 whose outer diameter decreases linearly upward along its entire length (frustum-shaped), a nacelle 3 provided at the top of the tower body 2, and a wind turbine 4 made up of multiple plates 4a supported by the nacelle 3.

[0023] In this embodiment, the tower body 2 is shown erected on the base 5. However, when the wind power generation device is installed on the sea, the base 5 may be provided as a float, or may be installed in the sea by constructing a reinforced concrete foundation on the seabed, or the base 5 as shown in the figure may not exist. In such a case, it is necessary to provide a base 5 as shown in the figure, which serves as the base of the tower-like structure lifting scaffold device, above sea level and embraced by the bottom of the tower body 2, in addition to the existing base.

[0024] [Outline of the configuration of the lifting scaffolding device for tower-like structures] The tower-like structure lifting scaffolding device 10 according to the embodiment of the present invention includes first to fourth guide columns 11A-11D erected in a four-way arrangement surrounding a tower body 2 on a base 5, first and second lifting scaffoldings 12A and 12B each having two lifting guides 12C provided on the left and right halves of the tower body 2, the lifting guides 12C being engaged with the four guide columns 11A-11D so as to be liftable and lowerable, and a lifting scaffolding 12B that is equipped to engage with the guide columns 11A and 11B of the first lifting scaffolding 12A and is used to lift and lower the first lifting scaffolding 12A. The lifting scaffold 12B includes a first lifting drive unit 13A, 13A for lifting the first lifting scaffold 12B, a second lifting drive unit 13B, 13B for engaging with guide columns 11C, 11D of the second lifting scaffold 12B and lifting the second lifting scaffold 12B, first connecting members 14a-14h, 14j and second connecting members 15a-15j for stably erecting the four guide columns in a four-sided arrangement surrounding the tower body 2, and a positioning template 16 for accurately defining the erection positions of the four guide columns on the base 5. It is preferable that the lifting scaffold 12B is equipped with an overhead traveling crane 18, an overhead position lifting crane 19, and a scaffold position lifting crane 20.

[0025] Although the guide column constituent members 11a-11j in this embodiment are of a steel frame rigid frame structure, I-beams or H-beams may also be used.

[0026] In order for the first lifting scaffold 12A to engage with the first and second guide columns 11A and 11B on the outside and to lift and lower, and for the second lifting scaffold 12B to engage with the third and fourth guide columns 11C and 11D on the outside and to lift and lower, the first and second guide columns 11A and 11B must be parallel, and the third and fourth guide columns 11C and 11D must be parallel. The first guide column 11A and the second guide column 11B, and the third guide column 11C and the fourth guide column 11D are connected at the upper ends of the guide column components 11a-11j by second connecting members 15a-15j of the same length and held in parallel.

[0027] 1B, the inclination angle of the first and second guide columns 11A and 11B is set to match the inclination angle of the outer surface of the tower body 2, and similarly, the inclination angle of the third and fourth guide columns 11C and 11D is set to match the inclination angle of the outer surface of the tower body 2. This allows the first and second lifting scaffolds 12A and 12B to move up and down at the same proximity to the tower body 2 on both sides of the tower body 2.

[0028] In this embodiment, the first and second guide columns 11A, 11B are erected so that their inclination angles match the inclination angle of the outer surface of the tower body 2, and the third and fourth guide columns 11C, 11D are erected so that their inclination angles match the inclination angle of the outer surface of the tower body 2. In order to do this, the first guide column 11A and the third guide column 11C are connected by first connecting members 14a-14h, 14j, and similarly, the second guide column 11B and the fourth guide column 11D are connected by first connecting members 14a-14h, 14j.

[0029] The first to fourth guide columns 11A-11D are erected higher than the tower body 2 on a positioning template 16 fixed on the base 5 and at the four sides of the tower body 2 by connecting a plurality of guide column components 11a-11j of required length (for example, 2-4m) with bolts and nuts. The first and second lifting scaffolds 12A, 12B, the first and second lifting drive units 13A, 13B, and the lifting crane 17 are installed at the stage where the four lowest guide column components 11a are erected.

[0030] [More detailed configuration explanation] The first to fourth guide columns 11A-11D are constructed by erecting the four lowest guide column constituent members 11a on the positioning template 16, and the four guide column constituent members of the same row constituting the upper ends of each lowest guide column constituent member 11a are connected to each other by the positioning template 16 described later and corresponding members among the first connecting members 14a-14h, 14j and the second connecting members 15a-15j, and are also connected to the tower body 2 by corresponding members among the first connecting members 14a-14h, 14j.

[0031] The first connecting members 14a-14h, 14j connect the first guide column 11A and the third guide column 11C, as well as the second guide column 11B and the fourth guide column 11D, with first connecting members having different connecting lengths with a deviation of a required value for each diameter value of the tower body 2 at multiple installation positions with different heights over the entire vertical length, so that the distance from the center position of the line connecting the centers of the two guide columns 11A and 11B on one side to the outer surface of the tower body 2 and the distance from the center position of the line connecting the centers of the two guide columns 11C and 11D on the other side to the outer surface of the tower body 2 are the same required dimensions at any height position.

[0032] [Explanation of deviation of required value] The connection length at each height of the tower body 2 at multiple connection positions of different heights over the entire vertical length of the positioning template 16 and the first connecting members 14a-14h, 14j varies so that there is a required deviation from the outer diameter value.

[0033] Specifically, the positioning template 16 shown in FIG. 7A has a connection length such that the separation distance L1 between the first guide column 11A and the third guide column 11C is the outer diameter D0+2A of the tower body 2 at the same height as the positioning template 16, The first connecting member 14a shown in FIG. 7B has a connecting length such that the separation distance L1 between the first guide column 11A and the third guide column 11C is the outer diameter D1+2A of the tower body 2 at the same height as the first connecting member 14a. The first connecting member 14b shown in FIG. 7B has a connecting length such that the separation distance L1 between the first guide column 11A and the third guide column 11C is the outer diameter D2+2A of the tower body 2 at the same height as the first connecting member 14b. In these, the deviation of the required value is 2A. The first to fourth guide columns 11A-11D are erected at appropriate intervals on all four sides surrounding the tower body 2, so the value of A can be set arbitrarily.

[0034] The second connecting members 15a-15j have the same length, thereby holding the first and second guide columns 11A, 11B on one side in parallel, and holding the third and fourth guide columns 11C, 11D on the other side in parallel.

[0035] As a result, the first and second guide columns 11A, 11B on one side are arranged in an inclined state so that they are parallel to each other and coincide with the inclination line (generator) of the vertical inclination of the outer surface of the tower body 2, i.e., so that the distance between them and the tower body 2 is constant; and similarly, the third and fourth guide columns 11C, 11D on the other side are arranged in an inclined state so that they are parallel to each other and coincide with the inclination of the generator (vertical line on the outer surface) of the tower body 2, so that the distance between them and the tower body 2 is constant.

[0036] The first guide column 11A and the third guide column 11C are erected on both sides of the nacelle 3, closer to the tower body 2 than one blade 4 to be repaired of the wind turbine 4 when the blade 4 is positioned in a hanging state between the two guide columns.

[0037] [Regarding the first connecting members 14a-14h, 14j] As shown in FIG. 1B, the first guide column 11A and the third guide column 11C are connected by first connecting members 14a-14h, 14j having different connecting lengths with a required deviation for each diameter value of the tower body 2 at a plurality of installation positions having different heights over the entire vertical length.

[0038] As a result, the distance from the center position of the line connecting the centers of the two guide columns on one side to the outer surface of the tower body 2 becomes the required separation dimension that is equal at any height position, and the first guide column 11A and the third guide column 11C face each other at an incline so as to have the same separation distance over the entire length of the tower body 2. Note that the first connecting member is not provided at a height position where interference with the nacelle 3 occurs (the height position where the second connecting member 15i is provided).

[0039] As shown in FIG. 4, the second guide column 11B and the fourth guide column 11D are connected by first connecting members 14a, 14b, 14c, . . . 14h, 14j having different connecting lengths with a deviation of a required value for each diameter value of the tower body 2 at a plurality of installation positions having different heights over the entire vertical length.

[0040] As a result, the distance from the center of the line connecting the centers of the two guide columns on the other side to the outer surface of the tower body 2 becomes the required dimension that is equal at any height, and the second guide column 11B and the fourth guide column 11D face each other at an incline so that they are spaced apart by the same distance over the entire length of the tower body 2.

[0041] [Regarding the second connecting members 15a-15j] The first guide column 11A and second guide column 11B on one side are connected by a plurality of second connecting members 15a-15j of the required length at multiple installation positions over the entire length in the vertical direction, and the third guide column 11C and fourth guide column 11D on the other side are connected by a plurality of second connecting members 15a-15j of the required length at multiple installation positions over the entire length in the vertical direction, so that the first and second guide columns 11A, 11B are parallel to each other, and the third and fourth guide columns 11C, 11D are parallel to each other.

[0042] [Regarding the first lifting scaffold 12A, the second lifting scaffold 12B, and the lifting guide 12C] A first lifting scaffold 12A is provided having a lifting guide 12C that engages with the first and second guide columns 11A, 11B, and similarly, a second lifting scaffold 12B is provided having a lifting guide 12C that engages with the third and fourth guide columns 11C, 11D.

[0043] The first lifting scaffold 12A and the second lifting scaffold 12B are arranged to protrude outward from the two corresponding guide columns, and based on the relationship in which the distance between the two guide columns on one side and the two guide columns on the other side approaches each other as they go upward, they are configured to be spaced a required distance apart at a low position and approach each other as they go upward, until at the top position they are close enough to not interfere with the blades 4 and nacelle 3 of the wind turbine generator 1.

[0044] At least one of the first lifting scaffold 12A and the second lifting scaffold 12B is provided with a scaffold position lifting crane 20.

[0045] As shown in FIG. 5, lifting guides 12C are provided at two locations corresponding to the first and second guide columns 11A, 11B of the first lifting scaffold 12A, and lifting guides 12C are provided at two locations corresponding to the third and fourth guide columns 11C, 11D of the second lifting scaffold 12B.

[0046] The lift guide 12C includes a frame and a number of guide wheels 12c supported by the frame. Three of the guide wheels 12c are provided at the upper and lower positions of the guide column, sandwiched between them in the X and Y directions, and are inseparably engaged with a frame member (a member applicable as a rail) extending in a straight line in the up-down direction of each guide column, or a rail (no reference number) attached to each guide column as a separate member, and are vertically rollable.

[0047] The first lifting drive unit 13A includes a pinion 13a provided on the first lifting platform 12A side, a motor 13b with a reducer and brake for reversibly driving the pinion 13a, and a rack 13c that is provided on the first and second guide columns 11A and 11B and extends in the vertical direction and meshes with the pinion 13a. The second lifting drive unit 13B is similarly configured.

[0048] Two sets of the first lifting drive unit 13A are provided at positions corresponding to the first and second guide columns 11A and 11B of the first lifting scaffold 12A, and two sets of the second lifting drive unit 13B are provided at positions corresponding to the third and fourth guide columns 11C and 11D of the second scaffold 12B. When the switch of the captive cable (not shown) that extends from the power supply line to the motor of each lifting scaffold is turned on, the first lifting drive unit 13A and the second lifting drive unit 13B can synchronously drive the motor to lift and lower the first scaffold 12A and the second scaffold 12B separately. Note that the first scaffold 12A and the second scaffold 12B may be synchronously lifted and lowered.

[0049] [About the 12D crossing platform] The first and second lifting scaffolds 12A and 12B are spaced apart at a maximum distance at a low position, and the distance decreases as the scaffolds rise. When the scaffolds reach the highest position shown in FIG. 1A, they are close to each other on one side, making it possible to walk across them. At positions other than the highest position, the first and second lifting scaffolds 12A and 12B are separated from each other, as shown in FIG. 6, making it impossible to walk across them. Therefore, a crossing scaffold 12D is provided so that the first and second lifting scaffolds 12A and 12B can be safely crossed when they are located at a high position and the space between them is open. The crossing scaffold 12D is provided when working at a high altitude where it is necessary to walk across the first and second lifting scaffolds 12A and 12B. For example, the blade 4a may need to be repaired or replaced at a height above which the first connecting member 14e and the second connecting member 15e are provided. The connecting scaffold 12D is fixed by bolts to either the first lifting scaffold 12A or the second lifting scaffold 12B. The connecting scaffold 12D may be provided so as to be slidable and extendable.

[0050] [Overhead Traveling Crane 18 and Overhead Lifting Crane 19] The overhead traveling crane 18 is provided on an overhead tower 17 which protrudes above the upper ends of the first to fourth guide columns.

[0051] The ceiling tower 17 is composed of four pillars, a horizontal frame section in a lattice shape supported by the upper ends of the four pillars, and beams that connect and support the pillars and the horizontal frame section at an angle. The overhead traveling crane 18 comprises an X-direction traveling beam 18a which is guided by the horizontal frame portion of the overhead tower 17 and travels in the X-direction, a Y-direction traveling table 18b which is guided by the X-direction traveling beam 18a and travels in the Y-direction, and an electric winch 18c provided on the Y-direction traveling table 18b.

[0052] At the end of the overhead tower 17, there is a ceiling lifting crane 19.

[0053] [Method of constructing a lifting scaffolding device for tower-like structures] First, as shown in FIG. 7A, the four guide column components 11a at the bottom are erected on the base 5 by bolt fixing. At this time, the positioning template 16 is used to position the components relative to the tower body 2. The guide column components 11a, 11b, 11c, 11d, ... are previously provided with the racks 13c constituting the lifting drive unit. In the case where the tower-like structure lifting scaffolding device is a wind power generation device erected on the sea and the base 5 cannot be constructed on top of the foundation exposed on the sea of ​​the wind power generation device, the base 5 is constructed using a plurality of piles erected independently from the seabed around the foundation exposed on the sea of ​​the wind power generation device. In the case where the water is deep and the foundation of the wind power generation device is a floating structure and the tower is a structure that sways due to waves and wind, the base 5 is also constructed as an independent floating structure moored around the foundation exposed on the sea of ​​the wind power generation device.

[0054] Next, as shown in FIG. 7B, the upper ends of the four lowest guide column constituent members 11a are connected to each other with a first connecting member 14a and a second connecting member 15a, and the upper ends of the four lowest guide column constituent members 11a are also connected to the tower body 2 by the first connecting member 14a.

[0055] Next, as shown in Fig. 7C, the first and second lifting scaffolds 12A and 12B are provided by assembling two lifting guides 12C of each of the first and second lifting scaffolds 12A and 12B to the four guide column components 11a at the lowest stage, and further, the racks 13c of the first and second lifting drive units 13A and 13B are attached to the guide column components, and the pinions 13a and motors 13b of the first and second lifting drive units 13A and 13B are attached to the first and second lifting scaffolds 12A and 12B. Then, a protruding portion is provided outward from the first lifting scaffold 12A (or the second lifting scaffold 12B), and a scaffold position lifting crane 19 shown in Fig. 1B is installed on this protruding portion.

[0056] Next, the first and second lifting scaffolds 12A, 12B are raised to the top of the four lowest tier guide column constituent members 11a, and the first and second lifting scaffolds 12A, 12B are used to erect the second tier of four guide column constituent members 11b shown in Figures 1A, 1B and 4. Then, as shown in Figure 7D, the upper ends of the second tier guide column constituent members 11b are connected to each other with the first connecting member 14b and the second connecting member 15b, and the upper ends of the second tier guide column constituent members 11b are connected to the tower body 2 with the first connecting member 14b.

[0057] The erection of the guide column constituent members 11c, 11d, ... for the third and subsequent stages is carried out after the first and second lifting platforms 12A, 12B are raised in the same manner as for the second stage.

[0058] Therefore, the first connecting members 14a, 14b, . . . and the second connecting members 15a, 15b, . . . are provided closer to the tower body 2 so as not to interfere with the rising first and second climbing scaffolds 12A, 12B.

[0059] In short, each guide column 11A-11D is constructed by connecting the guide column constituent members 11a, 11b, 11c, etc. of the required length with bolts and nuts. When connecting the guide column constituent members, the first and second lifting scaffolds 12A and 12B are used without preparing a separate crane vehicle or the like. This allows for cases where the lifting scaffold device 10 for tower-like structures is installed on the sea. It also allows for cases where the guide columns 11A-11D cannot be extended by the lift-up method.

[0060] In the above construction procedure, the tower body 2 of the wind power generation device 1, which is the subject of the invention, has an outer diameter that linearly decreases upward over its entire length, and the distance between the tower body 2 and the first and second climbing scaffolds 12A, 12B is constant regardless of the height to which they are raised or lowered. If the first and second climbing scaffolds 12A, 12B were configured to rise vertically upward, the distance between the tower body 2 and the first and second climbing scaffolds 12A, 12B would increase as they rose and fell, making scaffolding work difficult.

[0061] For this reason, when the first to fourth guide columns 11A-11D are erected by adding guide column constituent members 11a, 11b, 11c, ... as described above, the first and second guide columns 11A, 11B on one side of the tower body 2 and the third and fourth guide columns 11C, 11D on the other side are ensured to be parallel to each other and to have a constant distance from the tower body 2 to match the vertical inclination of the outer surface of the tower body 2.

[0062] According to this embodiment, ensuring such an inclined state is achieved by using first connecting members 14a, 14b, 14c, ... 14h, 14j, whose connecting length varies depending on the mounting height, and second connecting members 15a, 15b, 15c, ... 15h, 15i, 15j, which have the same connecting length regardless of the different mounting heights.

[0063] [About the use of lifting scaffolding equipment for tower-like structures] The tower-like structure climbing scaffolding device 10 is installed when the tower or blades need to be painted or when the repair, part replacement, or tower body dismantling is completed, and is dismantled when the repair, part replacement, or tower body dismantling is completed. The tower-like structure climbing scaffolding device 10 raises and lowers the first and second scaffoldings 12A and 12B so that the scaffolding height is required for the repair, part replacement, or tower body dismantling. The tower-like structure climbing scaffolding device 10 can raise and lower the first and second scaffoldings 12A and 12B so that the scaffolding has a necessary and sufficient scaffolding area around the tower body regardless of the height position of the first and second scaffoldings 12A and 12B. The first and second scaffoldings 12A and 12B can provide a good scaffolding because the distance from the tower body 2 is constant regardless of the height to which they are raised and lowered. The first and second scaffoldings 12A, 12B have one side ends close to each other at the most elevated position, so that a scaffolding surrounding the tower body 2 can be provided, and at heights other than the most elevated position, the crossing scaffolding 12D can be used to provide a scaffolding surrounding the tower body 2.

[0064] The present invention is not limited to the above-described embodiment, and various modifications, extensions, substitutions, variations, and the like are possible, all of which are encompassed within the technical concept of the present invention. [Industrial Applicability]

[0065] According to the present invention, it is possible to provide a lifting scaffolding device for tower-like structures which rises and falls so that the lifting scaffolding has a necessary and sufficient scaffolding area around the tower body regardless of the height position of the lifting scaffolding, and therefore has great applicability in various manufacturing industries including the construction and civil engineering industries. [Explanation of symbols]

[0066] 1...Wind power generation equipment (tower structure), 2...Tower body, 3…Nacelle, 4...windmill, 4a…Blade, 5… Foundation, 10...Lifting scaffolding device for tower-like structures, 11A…first guide column, 11B…Second guide column, 11C…Third guide column, 11D…4th guide column, 11a, 11b, 11c, . . . 11h, 11i, 11j ... Guide column components, 12A…First lifting platform, 12B…Second lifting platform, 12C…Lift guide, 12D…Crossing platform 12a…Scaffolding plate, 12b…Handrail, 13A...first lift drive unit, 13B...second lift drive unit, 13a…Pinion, 13b…Motor, 13c…Rack, 14a, 14b, 14c, . . . 14h, 14j...first connecting members, 15a, 15b, 15c, . . . 15h, 15i, 15j...second connecting member, 16… Positioning template, 17...Ceiling tower, 18...Overhead crane, 18a...X direction running beam, 18b…Y-direction travel table, 18c…Electric winch, 19...Ceiling lifting crane, 20...Crane for lifting scaffolding position.

Claims

1. A tower-like structure lifting scaffolding device for repairing and replacing parts of a wind power generation device including a tower body whose outer diameter decreases linearly upward along the entire length of the outer surface, a nacelle provided at the upper end of the tower body, and a wind turbine made of a plurality of plates supported by the nacelle, the device being used for dismantling the tower body, Four guide columns, a first and a second guide column on one side of the tower body and a third and a fourth guide column on the other side, are installed upright on all four sides of the tower body, and are parallel to each other and inclined such that the distance between the guide columns and the tower body is approximately constant so as to match the inclination of the outer surface of the tower body in the vertical direction; a first lifting platform having a lifting guide that engages with the first and second guide columns; a first lifting drive unit for lifting and lowering the first lifting platform, the first lifting platform including a pinion provided on the first lifting platform, a motor for rotating and driving the pinion, and a rack provided on the first and second guide columns and extending in the vertical direction and meshing with the pinion; a second lifting platform having a lifting guide that engages with the third and fourth guide columns; a second lifting drive unit for lifting and lowering the second lifting platform, the second lifting platform including a pinion provided on the second lifting platform, a motor for rotating and driving the pinion, and a rack provided on the third and fourth guide columns and extending in the vertical direction and meshing with the pinion; A lifting scaffolding device for a tower-like structure, comprising:

2. 2. The lifting scaffold device for a tower-like structure according to claim 1, wherein the first and second lifting scaffolds are provided so as to protrude outward from the two corresponding guide columns, and are configured so that the first and second lifting scaffolds are spaced apart at a required distance at a lower position and approach each other as they go upward, based on a relationship in which the distance between the two guide columns on one side and the two guide columns on the other side approaches each other as they go upward, and at the top position they approach each other in a state where they do not substantially interfere with the blades and nacelle of the wind power generation device.

3. 2. The lifting scaffolding device for tower-like structures according to claim 1, wherein each of said guide columns is constructed by joining together a plurality of guide column components of a required length.

4. 2. The lifting scaffolding device for a tower-like structure according to claim 1, wherein the first guide column and the third guide column are configured to be erected on both sides of the nacelle closer to the tower body than the blade when one wing of the blade is positioned in a hanging state between the two guide columns.

5. 2. The lifting scaffold device for a tower-like structure according to claim 1, wherein the first guide column and the third guide column, as well as the second guide column and the fourth guide column, are connected by first connecting members having different connection lengths with a deviation of a required value for each diameter value of the tower body at a plurality of installation positions having different heights over the entire length in the vertical direction, so that the first guide column and the third guide column face each other at an incline so as to have a required separation dimension that is approximately equal at any height position relative to the tower body, and the second guide column and the fourth guide column face each other at an incline so as to have a required separation dimension that is approximately equal at any height position relative to the tower body.

6. 2. The lifting scaffolding device for tower-like structures according to claim 1, wherein the first and second guide columns on one side and the third and fourth guide columns on the other side are connected by a plurality of second connecting members of required length at a plurality of installation positions over the entire length in the vertical direction, so that the first and second guide columns are approximately parallel to each other and the third and fourth guide columns are approximately parallel to each other.

7. 2. The lifting scaffolding device for tower-like structures according to claim 1, wherein a ceiling tower is protruding above the upper ends of the first to fourth guide columns, and a ceiling traveling crane is provided on the ceiling tower.

8. The lifting scaffolding device for tower-like structures according to claim 7, wherein the ceiling traveling crane further comprises an X-direction traveling beam guided by the ceiling tower and traveling in the X-direction, a Y-direction traveling table guided by the X-direction traveling beam and traveling in the Y-direction, and an electric winch provided on the Y-direction traveling table.

9. The tower-like structure lifting scaffolding device according to claim 8, further comprising a ceiling-position lifting crane at an end of the ceiling tower.

10. The lifting scaffold device for a tower-like structure according to claim 1 , further comprising a scaffold position lifting crane on at least one of the first lifting scaffold and the second lifting scaffold.

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