Elevating scaffolding device for tower-like structures

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 tower-like structures, for example, and more particularly to a lifting scaffolding device for tower-like structures for repair, part replacement, dismantling, etc. of tower structures 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 when dismantling a tower-type wind power generation facility that includes a tower body and a wind power generator with a wind turbine with multiple blades arranged radially at the top end of the tower body. Patent Document 3 proposes a lifting scaffolding device equipped with an extending scaffolding that can slide out from the lifting scaffolding. For wind power generation facilities that include a tower body whose outer diameter linearly decreases upward along its entire length, no lifting scaffolding has been proposed to be installed on the outside of the tower body for repairs, part replacement, or tower body dismantling. [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 large, when the lifting scaffolding rises vertically upward to correspond to the upper part of the tower body where the diameter is small, the distance between the upper part of the tower body and the lifting scaffolding becomes large, so the lifting scaffolding falls outside the work area and cannot be used effectively.

[0005] According to the lifting scaffolding device of Patent Document 3, a scaffold is secured by extending an overhanging scaffolding between the lifting scaffolding and the top of the tower body, where the distance between them becomes larger. However, since the overhanging scaffolding has a narrow width and is located in a specific position and is not configured to be able to be moved to any position, the scaffolding area required for repairs, part replacement, or dismantling the tower body is far too small, and therefore it cannot be used as a lifting scaffolding device for tower-like structures with tower bodies.

[0006] The present invention has been devised to solve the above problems, and aims to provide a lifting scaffolding device for tower-like structures that rises and falls so that the lifting scaffolding has a necessary and sufficient foothold 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 problem, the inventor first came up with the idea of ​​a climbing scaffolding device for tower-like structures, which can be used to repair and replace parts of wind power generation equipment, for example, which has a tower body with an outer diameter that gradually decreases upward (frustum-shaped) along its entire length, or to dismantle the tower body.

[0008] The conclusion reached from this is that the climbing scaffolding device for tower-like structures according to the present invention is, for example, a climbing scaffolding device for a wind power generator, and is composed of a tower body whose outer diameter decreases linearly upward along its entire length (frustum-shaped), a nacelle provided at the top end of the tower body 2, and a plurality of scaffolding members supported by the nacelle. blade This is a climbing scaffolding device for tower-like structures used for repairing and replacing parts of wind power generation equipment equipped with a wind turbine and tower body dismantling.

[0009] That is, in order to solve the above problem, the climbing scaffolding device for tower-like structures according to the first aspect of the present application comprises 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 plurality of scaffolding members supported by the nacelle. blade a first lifting scaffold having lifting guides that engage with the first and second guide columns; a pinion provided on the first lifting scaffold and a pinion provided on the first lifting scaffold; a second lifting scaffold having lifting guides that engage with the first and second guide columns; a pinion provided on the first lifting scaffold and a pinion provided on the second lifting scaffold; a third lifting scaffold having lifting guides that engage with the first and second guide columns; a pinion provided on the first lifting scaffold and a pinion provided on the second lifting scaffold; a third lifting scaffold having lifting guides that engage with the first and second guide columns; a pinion provided on the first lifting scaffold and a pinion provided on the second lifting scaffold; a fourth .... The configuration includes a first lifting drive unit that raises and lowers the first lifting platform, which includes a motor that rotates a pinion and a rack that is provided on the first and second guide columns and extends in the vertical direction and engages with the pinion; a second lifting platform that has lifting guides that engage with the third and fourth guide columns; a pinion provided on the second lifting platform, a motor that rotates the pinion; and a second lifting drive unit that raises and lowers the second lifting platform, which includes a rack that is provided on the third and fourth guide columns and extends in the vertical direction and engages with the pinion.

[0010] As a second aspect of the present application, in the first aspect, the first and second lifting platforms may be arranged to extend 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 may be configured to be spaced a required distance apart at a low position and approach each other as they go upward, and at a top position they may be configured to be close enough to not substantially interfere with the blades and nacelle of the wind turbine generator.

[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 the two guide columns.

[0013] As a fifth aspect of the present application, in the first aspect, the first guide column and the third guide column, and 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 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.

[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, an overhead tower may be provided above the upper ends of the first to fourth guide columns, and an overhead traveling crane may be provided on the overhead tower.

[0016] As an eighth aspect of the present application, in the seventh aspect, the overhead traveling crane may further comprise 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. [Effects of the Invention]

[0019] According to each aspect of the present invention, it is possible 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 around the tower body regardless of the height position of the lifting scaffolding. [Brief explanation 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; [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. [Figure 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. [Figure 3] 1B is a cross-sectional view taken along line III-III in 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] 1B is a rear view showing a tower-like structure lifting scaffolding device according to an embodiment of the present invention, corresponding to the front view of FIG. 1B. FIG. [Figure 5] 1 is a plan view showing a lifting scaffolding device for a tower-like structure according to an embodiment of the present invention, illustrating details of a lifting guide and a lifting drive unit. FIG. [Figure 6] 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 connecting scaffolding is set up. FIG. [Figure 7A] 1 is a plan view showing a first step of a method for constructing a tower-like structure climbing scaffolding device according to an embodiment of the present invention. FIG. [Figure 7B] FIG. 2 is a plan view showing a second step in a method for constructing a tower-like structure climbing scaffolding device according to an embodiment of the present invention. [Figure 7C] FIG. 10 is a plan view showing a third step in a method for constructing a tower-like structure climbing scaffolding device according to an embodiment of the present invention. [Figure 7D] FIG. 10 is a plan view showing the fourth step of the method for constructing a tower-like structure climbing scaffolding device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A climbing scaffolding device for a tower-like structure according to an embodiment of the present invention will be described below 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 as a target of the climbing scaffolding device according to the embodiment of the present invention. This wind turbine generator 1 comprises a tower body 2 having an outer diameter that decreases linearly upward along the entire length (frustum-shaped), a nacelle 3 provided at the top of the tower body 2, and a plurality of wind turbines supported by the nacelle 3. blade and a wind turbine 4 consisting of a wind turbine 4a.

[0023] In this embodiment, the tower body 2 is shown erected on the base 5. However, when the wind power generation system is installed on the sea, the base 5 may be provided as a float, or a reinforced concrete foundation may be constructed on the seabed and the base 5 may be installed underwater, or the base 5 as shown in the figure may not exist. In such cases, it is necessary to provide a base 5 as shown in the figure that serves as the base of the tower-like structure lifting scaffolding system, separate from the existing base, so that it is above sea level and is embraced by the bottom of the tower body 2.

[0024] [Outline of the configuration of the climbing scaffolding device for tower-like structures] The climbing scaffolding device 10 for tower-like structures according to the embodiment of the present invention comprises first to fourth guide columns 11A-11D erected in a four-way arrangement surrounding the tower body 2 on the base 5, first and second climbing scaffolds 12A and 12B provided on the left and right halves of the tower body 2, each having two climbing guides 12C which are engaged with the four guide columns 11A-11D so as to be able to rise and fall, and a second climbing scaffolding 12A and 12B which are equipped to engage with the guide columns 11A and 11B of the first climbing scaffolding 12A and which are used to raise and lower the first climbing scaffolding 12A. The tower 1 includes first lifting drive units 13A, 13A for raising and lowering the guide columns 11C, 11D of the second lifting scaffold 12B, second lifting drive units 13B, 13B that are equipped to engage with the guide columns 11C, 11D of the second lifting scaffold 12B and raise and lower 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-way arrangement surrounding the tower body 2, and a positioning template 16 that accurately determines the erection positions of the four guide columns on the base 5. It is also preferable that the tower 1 is equipped with an overhead traveling crane 18, an overhead lifting weight crane 19, and a scaffolding lifting weight 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 outside of the first and second guide columns 11A and 11B and to rise and fall, and for the second lifting scaffold 12B to engage with the outside of the third and fourth guide columns 11C and 11D and to rise and fall, the first and second guide columns 11A and 11B must be parallel, and the third and fourth guide columns 11C and 11D must also 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 constituent members 11a-11j by second connecting members 15a-15j of the same length and held parallel.

[0027] 1B, the inclination angles of the first and second guide columns 11A and 11B are set up to match the inclination angle of the outer surface of the tower body 2, and similarly, the inclination angles of the third and fourth guide columns 11C and 11D are set up to match the inclination angle of the outer surface of the tower body 2. This allows the first climbing scaffolding 12A and the second climbing scaffolding 12B to ascend and descend on both sides of the tower body 2 at the same proximity to the tower body 2.

[0028] In this embodiment, the first and second guide columns 11A and 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 and 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 and 14j, and similarly, the second guide column 11B and the fourth guide column 11D are connected by first connecting members 14a-14h and 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 a required length (for example, 2-4 m) with bolts and nuts. The first and second lifting scaffoldings 12A and 12B, the first and second lifting drive units 13A and 13B, and the lifting crane 17 are attached at the stage when 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 tier that constitute the upper ends of each lowest guide column constituent member 11a are connected to each other by the positioning template 16 described below and corresponding members among the first connecting members 14a-14h, 14j and 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, and the second guide column 11B and the fourth guide column 11D, with first connecting members of different connecting lengths that have a deviation of the required value for each diameter value of the tower body 2 at multiple installation positions of 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 value 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 Figure 7B has a connecting length such that the 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 cases, 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 are of the same length, which holds the first and second guide columns 11A, 11B on one side parallel to each other, and also holds the third and fourth guide columns 11C, 11D on the other side parallel to each other.

[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 outer surface of the tower body 2 in the vertical direction, i.e., so that the distance between them and the tower body 2 is constant; 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 line (generator) of the outer surface of the tower body 2 in the vertical direction, 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 with 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 that they 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 it will interfere with the nacelle 3 (a 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 separated 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 a plurality of 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 a plurality of 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 and second lifting scaffolds 12A and 12B are arranged to extend outward from the two corresponding guide columns, and are configured so that they are spaced a required distance apart at their lower positions and approach each other as they go upward, 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, and at their top position they are close enough to each other so as not to interfere with the blades 4 and nacelle 3 of the wind turbine generator 1.

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

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

[0046] The lift guide 12C includes a frame body and a plurality of guide wheels 12c supported by the frame body. 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 and can roll up and down on frame members (members that can be used as rails) that extend in a straight line in the up and down direction of each guide column, or on rails (no reference numeral) that are attached to each guide column as separate members.

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

[0048] Two sets of first lifting / lowering drive units 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 second lifting / lowering drive units 13B are provided at positions corresponding to the third and fourth guide columns 11C and 11D of the second lifting scaffold 12B. The first lifting / lowering drive units 13A and the second lifting / lowering drive units 13B can independently raise and lower the first and second scaffolds 12A and 12B by synchronously driving the motors when a switch is turned on for a cabtyre cable (not shown) extending from the power supply line to the motor of each lifting scaffold. The first and second scaffolds 12A and 12B may also be configured to be raised and lowered synchronously.

[0049] [About the 12D crossing platform] The first and second lifting scaffolds 12A and 12B are spaced apart at their lowest positions and become closer as they rise. When they reach their highest position, as shown in FIG. 1A, they are close to each other on one side, allowing for easy crossing. At positions other than their highest, as shown in FIG. 6, the first and second lifting scaffolds 12A and 12B are separated, making it impossible to cross between them. Therefore, a crossing scaffold 12D is provided to allow safe crossing between the first and second lifting scaffolds 12A and 12B when they are located at a high elevation and spaced apart. The crossing scaffold 12D is provided when working at heights that require crossing between the first and second lifting scaffolds 12A and 12B. For example, at heights above the height at which the first and second connecting members 14e and 15e are installed, the blade 4a may need to be repaired or replaced. The connecting scaffold 12D is fixed with 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 able to slide and extend out freely.

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

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

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

[0053] [Method for constructing a lifting scaffolding device for tower-like structures] First, as shown in FIG. 7A , the four lowest guide column components 11a are bolted to the base 5. At this time, a positioning template 16 is used to position them relative to the tower body 2. The guide column components 11a, 11b, 11c, 11d, ... are pre-attached with racks 13c that constitute the lifting drive unit. In the case where the tower-like structure lifting scaffolding device is a wind turbine generator erected on the sea, and the base 5 cannot be constructed on top of the wind turbine generator's exposed foundation above sea level, the base 5 is constructed using multiple piles erected independently from the seabed around the wind turbine generator's exposed foundation above sea level. In cases where the water depth is deep and the wind turbine generator's foundation 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 wind turbine generator's exposed foundation above sea level.

[0054] Next, as shown in Figure 7B, the upper ends of the four lowest guide column constituent members 11a are connected to each other by the first connecting member 14a and the 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 for each of the first and second lifting scaffolds 12A and 12B to the four lowest guide column components 11a, and then 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 scaffoldings 12A, 12B are raised to the top of the four lowest-level guide column constituent members 11a, and the first and second lifting scaffoldings 12A, 12B are used to erect the four second-level guide column constituent members 11b shown in Figures 1A, 1B, and 4, and then, as shown in Figure 7D, the upper ends of the second-level 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-level 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 have been 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 guide column constituent members 11a, 11b, 11c, etc. of the required length with bolts and nuts. When extending the guide column constituent members, the first and second lifting scaffolds 12A and 12B are used, rather than using a separate crane or other vehicle. This allows for the tower-like structure lifting scaffold device 10 to be installed offshore. It also allows for cases where the guide columns 11A-11D cannot be extended using the lift-up method.

[0060] In the above construction procedure, the tower body 2 of the wind turbine generator 1, which is the subject of the invention, has an outer diameter that decreases linearly upward along its entire length, and the first and second climbing scaffolds 12A, 12B maintain a constant distance from the tower body 2 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 from the tower body 2 would increase as the first and second climbing scaffolds 12A, 12B were raised or lowered, making scaffolding work difficult.

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

[0062] In 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, whose connecting length is the same regardless of the mounting height.

[0063] [About the use of climbing scaffolding equipment for tower-like structures] The tower-like structure climbing scaffolding device 10 is installed when repairs and part replacements of the wind power generation device 1, dismantling the tower body, or when painting of the tower or blades is required, and is dismantled once the repairs and part replacements or dismantling of the tower body are completed. The tower-like structure climbing scaffolding device 10 raises and lowers the first and second scaffoldings 12A, 12B to the scaffolding height required for repairs and part replacements or dismantling of the tower body. The tower-like structure climbing scaffolding device 10 can raise and lower the first and second scaffoldings 12A, 12B so that the scaffoldings have a necessary and sufficient scaffolding area around the tower body, regardless of the height position of the first and second scaffoldings 12A, 12B. The first and second scaffoldings 12A, 12B maintain a constant distance from the tower body 2 regardless of the height to which they are raised or lowered, thereby providing an excellent scaffolding. The first and second scaffoldings 12A, 12B have their one side ends close to each other at the highest position, so that they can provide scaffolding surrounding the tower body 2, and at heights other than the highest position, by using the crossing scaffolding 12D, it is possible to provide scaffolding surrounding the tower body 2.

[0064] The present invention is not limited to the above-described embodiment, and various modifications, extensions, substitutions, variations, etc. 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 that 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-shaped structure), 2...Tower body, 3... Nacelle, 4...windmill, 4a...Blade, 5...foundation, 10...Elevating 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 constituent members, 12A...First lifting platform, 12B...second lifting platform, 12C...Lift guide, 12D...crossing platform 12a... Scaffolding plate, 12b...Handrail, 13A...first lifting drive unit, 13B...second lifting drive unit, 13a...Pinion, 13b...Motor, 13c...rack, 14a, 14b, 14c, . . . 14h, 14j...first connecting members, 15a, 15b, 15c, 15h, 15i, 15j...second connecting members, 16... Positioning template, 17... Ceiling tower, 18...Overhead traveling crane, 18a...X direction running beam, 18b...Y-direction travel table, 18c...electric winch, 19... Ceiling lifting crane, 20...Scaffolding position lifting crane.

Claims

1. A tower-like structure climbing scaffolding device for repairing and replacing parts of a wind power generation system, which includes a tower body whose outer diameter decreases linearly upward along the entire length of the outer surface, a nacelle provided at the top end of the tower body, and a wind turbine consisting of a plurality of blades supported by the nacelle, and which is used for dismantling the tower body, Four guide columns, each of which is provided upright on each of the four sides of the tower body, including 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, which are parallel to each other and inclined so that the distance between the guide columns and the tower body is substantially constant so as to match the inclination of the outer surface of the tower body in the vertical direction; a first lifting platform having lifting guides that engage with the first and second guide columns; a first lifting drive unit for raising and lowering the first lifting platform, the first lifting platform including a pinion provided on the first lifting platform, a motor for rotationally driving the pinion, and a rack provided on the first and second guide columns and extending in the vertical direction, the rack meshing with the pinion; a second lifting platform having lifting guides that engage with the third and fourth guide columns; a second lifting drive unit for raising and lowering the second lifting platform, the second lifting platform including a pinion provided on the second lifting platform, a motor for rotationally driving the pinion, and racks provided on the third and fourth guide columns and extending in the vertical direction, and meshing with the pinion; A lifting scaffolding device for tower-like structures, 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 based on a relationship in which a distance between the two guide columns on one side and the two guide columns on the other side approaches each other as it goes upward, the first and second lifting scaffolds are configured to be spaced apart as required at a low position and approach each other as it goes upward, and at a top position they are close enough to 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 tower-like structures 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 tower-like structures according to claim 1, wherein the first guide column and the third guide column, and the second guide column and the fourth guide column are connected by first connecting members having different connection lengths with a required deviation 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 distance 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 distance 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 lengths 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. 8. The lifting scaffolding device for tower-like structures according to claim 7, wherein the overhead traveling crane further comprises an X-direction traveling beam that is guided by the ceiling 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.

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

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

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