JP3969241B2 - Transmission line winding device and transmission line winding method using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power transmission wire winding device for winding an existing electric wire and temporarily fixing it to a lever device at the time of power transmission line construction, and a power transmission wire winding method using the power transmission wire winding device.
[0002]
[Prior art]
In general, in the rebuilding work of a transmission line tower, a temporary tower is constructed near the target tower, and an electric wire is stretched to the temporary tower side to secure a transmission line during the construction period. If there is a surplus wire due to this transfer, the wire is cut and overlaid to the temporary tower. After that, the new steel tower is completed, and when the electric wire is restored from the temporary tower to the new steel tower, This is achieved by compressing and connecting the wires to the existing wires.
[0003]
In addition, when the insulator device is temporarily sent into the span by the long jumper method or the cable jumper method, the supplied wire is cut, and the wire is compressed and connected again at the time of restoration.
[0004]
[Problems to be solved by the invention]
However, in the above temporary work, it is often unnecessary to connect a new electric wire unless the existing electric wire is cut. As described above, cutting an existing electric wire for construction has a problem that it is not preferable in terms of facility management because the restored electric wire is connected. In this way, it is very uneconomical to cut an existing electric wire for a short construction such as one week to several months. The work of compressing and connecting electric wires requires a great deal of labor and time, which increases construction costs and prolongs the construction period. Moreover, since industrial waste such as removed electric wires is discharged by the compressing and connecting operation of the electric wires, it is not preferable from the viewpoint of environmental conservation.
[0005]
Furthermore, when there are wire connection points within the span, it is not possible to provide multiple connection points within the span, so it is necessary to replace all the wires between the spans, further increasing the construction cost and construction period. Has been prolonging.
[0006]
Therefore, the present invention has been devised to solve the above problems, and its purpose is to provide a power transmission line winding device capable of performing power transmission line construction without cutting and compressing and connecting existing wires, and It is to provide a method for winding a transmission line using the same.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is directed to an electric wire reel that winds up an overhead power transmission line wired between steel towers while rotating from the end of the electric wire, and a rod for fixing the electric wire reel to an insulator device. A clevis link of the shape, a cotter bolt and a nut for fixing the hole of the clevis link and the hole of the central member of the wire reel, and the wire reel after winding of the overhead power transmission line are fixed to the clevis link. A power transmission line winding device including a clamp for restricting rotation of the lever.
[0008]
According to the above configuration, it is possible to hold the electric wire in an energized state without cutting the existing electric wire by winding the excess existing electric wire on the electric wire reel and fixing it to the insulator device. There is no need to connect. As a result, it is possible to prevent the connection of the electric wires, and to reduce the construction cost and the construction period.
[0009]
According to a second aspect of the present invention, there is provided a power transmission line winding device in which a suspension metal wheel for rotatably suspending the wire reel on a wire or the like connected to the steel tower is provided on the wire reel.
[0010]
According to a third aspect of the present invention, an electric wire reel that winds up the overhead power transmission line is rotatably suspended on a wire that holds the overhead power transmission line on a steel tower during power transmission line construction, and the overhead wire is rotated while rotating the wire reel. said after the power lines Tsu preparative winding from its wire ends, with fixing the wire reel after winding of the overhead transmission line insulator apparatus by clevis link rod type, by clamping the wire reel after the winding It is a transmission line winding method characterized in that it is fixed to a clevis link and the rotation of the wire reel after winding is restricted .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0012]
FIG. 1 is a side view showing a state in which a transmission line winding device according to the present invention is attached to an insulator device, FIG. 2 is a side view showing an electric wire reel of the transmission line winding device according to the present invention, and FIG. FIG. 4 is a side view and a plan view showing a clevis link of a power transmission wire winding device according to the present invention, and FIG. 5 is a clamp of the power transmission wire winding device according to the present invention. FIG. 6 is a plan view showing a transmission line winding device according to the present invention, and FIG. 7 is a side view and a front view showing a suspension car of the transmission line winding device according to the present invention. FIG. 8, FIG. 8 is a side view and a front view showing a state in which a power transmission wire winding device according to the present invention is suspended from a wire, and FIG. 9 is a side view for explaining a power transmission wire winding method according to the present invention. is there.
[0013]
As shown in the figure, such a power line winding device 1 includes an electric wire reel 5 that winds an overhead power transmission line 3 that is wired between steel towers 2 while rotating from the end of the electric wire, and this electric wire reel 5 is used as an insulator device 6. A rod-shaped clevis link 7 for fixing, a cotter bolt 8 and a nut 9 for fixing the clevis link 7 to the electric wire reel 5, and the electric wire reel 5 after winding the overhead power transmission line 3 are fixed to the clevis link 7. And a clamp 11 for restricting the rotation.
[0014]
The electric wire reel 5 is configured by attaching an electric wire gripping portion 14 to the tip of a rod 12 that extends radially from the center. In this embodiment, six rods 12 extend in the radial direction at an equal pitch of 60 °. In addition, the arrangement | positioning angle and number of rods 12 are not restricted to this.
[0015]
The wire gripping portion 14 is formed in a U-shaped cross section that opens radially inward (see FIG. 3), and the overhead power transmission line 3 is accommodated inside the wire gripping portion 14. The overhead power transmission line 3 is wound in a circular shape, and the overhead power transmission line 3 is fixed to the wire gripping portion 14 by pressing the inner peripheral surface of the wire gripping portion 14 with a force to spread outward. It has become.
[0016]
The winding diameter of the electric wire reel 5 is set to 30 times or more the diameter of the overhead power transmission line 3 in consideration of the influence on the overhead power transmission line 3 due to bending. From the viewpoint of workability and weight, the material of the wire reel 5 is preferably made of an aluminum alloy, and the maximum wire length to be wound is preferably about 20 m.
[0017]
A lid member 15 for preventing separation of the overhead power transmission line 3 is provided at the opening end of the wire gripping portion 14. The base end of the lid member 15 is pivotally supported by the opening end, and the overhead power transmission line 3 is connected to the wire gripping portion 14 in a state where the lid member 15 is opened (shown by a broken line in FIG. 3A). After the housing, the lid member 15 is closed (see FIG. 3A) and fixed with the fixing bolt 16.
[0018]
The fixing bolt 16 is pivotally supported at the portion where the tip is located when the lid member 15 is closed. When the lid member 15 is closed, the fixing bolt 16 is inserted into the bolt groove 17 formed in the lid member 15. The lid member 15 is fixed at the closed position by being engaged and tightened with the nut 18.
[0019]
A central member 23 for fixing each rod 12 is provided at the center of the electric wire reel 5. The center member 23 is formed in a ring shape, and the cotter bolt 8 is inserted into the center member 23 when the clevis link 7 is fixed.
[0020]
A reinforcing ring member 29 is bridged between the rods 12 so as to maintain the shape of the electric wire reel 5.
[0021]
The clevis link 7 is formed with a U-shaped clevis 21 in which a hole 19 through which a bolt is inserted is formed at one end of a rod 18, and a hole 22 through which a bolt is inserted. In the clevis 21 of one clevis link 7, the hole 22 side end of another clevis link 7 is positioned, and the clevis links 7 are connected to each other by inserting bolts.
[0022]
The cotter bolt 8 is formed in a tapered shape having a diameter reduced toward the tip, and the cotter bolt 8 is inserted into the holes 19 and 22 of the clevis link 7 and the hole 24 of the central member 23 of the electric wire reel 5 with a nut 9. By tightening, the clevis link 7 is fixed to the wire reel 5. The electric wire reel 5 is rotatable with respect to the clevis link 7.
[0023]
The clamp 11 includes a pair of sandwiching members 25 and 25 facing each other, and a bolt 26 and a nut 27 for sandwiching the sandwiching members 25 and 25. The sandwiching members 25 and 25 are formed with two insertion holes 28 and 28 each having a circular cross section when the sandwiching members 25 and 25 face each other. These insertion holes 28 and 28 are formed in parallel with each other. By inserting and fixing the rod 12 of the electric wire reel 5 and the rod 18 of the clevis link 7 into the respective insertion holes 28 and 28, the electric wire reel 5 and the clevis are fixed. The link 7 is fixed integrally, and the rotation of the electric wire reel 5 is restricted.
[0024]
The power line winding device 1 is fixed to the lever device 6 with the electric wire reel 5 and the clevis link 7 fixed. Specifically, a set of the clevis link 7 is interrupted in the lever device 6 in advance, and the electric wire reel 5 around which the overhead transmission line 3 is wound is attached by inserting the cotter bolt 8 into the holes 19 and 22 of the clevis link 7. . Then, the rod 12 of the electric wire reel 5 and the rod 18 of the clevis link 7 are fixed by the clamp 11 so that the electric wire reel 5 does not rotate.
[0025]
At the time of winding the overhead power transmission line 3, the wire reel 5 is provided with a suspension metal wheel 32 for freely hanging the wire reel 5 on a wire 31 (see FIG. 9) connected to the steel tower 2 or the like. .
[0026]
As shown in FIGS. 7 and 8, the suspension metal wheel 32 is provided with a roller 34 at the upper end of an L-shaped rod 33, and the lower end of the rod 33 has a central member 23 of the electric wire reel 5. A shaft portion 35 inserted through the hole 24 is formed.
[0027]
The roller 34 is formed in a drum shape whose center is recessed in an arc shape, and the wire 31 is positioned in the recess.
[0028]
A nut 36 is provided in the vicinity of the tip of the shaft portion 35, and the nut 36 is tightened after the shaft 35 is inserted into the hole 24 of the electric wire reel 5. The nut 36 prevents the electric wire reel 5 from falling off, and does not press the center member 23 with the nut 36. Therefore, the wire reel 5 is rotatably supported by the suspension metal wheel 32.
[0029]
Next, a power transmission wire winding method using the power transmission wire winding device 1 having the above-described configuration will be described, and the operation thereof will be described.
[0030]
As shown in FIG. 9, the overhead power transmission line 3 is fixed to the steel tower 2 with a cam along 37 and a wire 31. First, the suspension metal wheel 32 is hung on the wire 31 and the electric wire reel 5 is rotatably supported on the shaft portion 35.
[0031]
Thereafter, a suspension vehicle 38 is provided on both sides of the suspension rack 32, and an operator 39 riding on the suspension vehicle 38 rotates the electric wire reel 5 while winding the overhead power transmission line 3 from the end of the electric wire. Then, the wire reel 5 moves to the cam along 37 side.
[0032]
When the transmission line winding device 1 is attached to the lever device 6, after the winding of the overhead power transmission line 3 is finished, as shown in FIG. 1, between the lever device 6 and the bolt tightening type tension clamp 41, as shown in FIG. The clevis link 7 is inserted and fixed, and the wire reel 5 is fixed to the clevis link 7 via the cotter bolt 8 and the clamp 11.
[0033]
At this time, the rod 11 of the electric wire reel 5 and the rod 18 of the clevis link 7 are fixed by the clamp 11 and the rotation of the electric wire reel 5 is regulated, so that the electric wire reel 5 is rotated and wound up. The power transmission line 3 does not loosen and come off.
[0034]
As described above, according to the transmission line winding device 1 and the transmission line winding method of the present invention, the surplus overhead power transmission line 3 can be wound up to a desired length, so that it is aerial toward the temporary tower during the construction period. When the power transmission line 3 is transferred, it can be wound up even if the overhead power transmission line 3 is left over, and there is no need to cut it. Therefore, when the new iron tower is completed and the electric wires are restored from the temporary tower to the new iron tower, there is no shortage of electric wires, and there is no need to compress and connect the new electric wires to the existing electric wires as in the past.
[0035]
As a result, the restored overhead power transmission line 3 is not spliced, and performance degradation of the overhead power transmission line 3 can be prevented.
[0036]
Moreover, since it is not necessary to perform the compression connecting work of the electric wire which requires a lot of labor and time, it is possible to achieve a reduction in construction cost and a shortening of the construction period.
[0037]
Furthermore, since industrial waste such as removed electric wires is not discharged, it is excellent in terms of environmental conservation.
[0038]
Moreover, even when there is a wire connection point within the span, it is not necessary to replace all the wires between the spans.
[0039]
FIG. 10 is a side view showing an example in which the power line winding device according to the present invention is applied to the cable jumper method.
[0040]
In this case, the power line winding device 1 is attached in the same manner as in FIG. 1, and the clevis link 7 is inserted and fixed between the lever device 6 and the bolt tightening type tension clamp 41. The wire reel 5 is fixed to the clevis link 7 via the cotter bolt 8 and the clamp 11 (see FIGS. 1 and 6). The insulator device 6 is connected to the steel tower 2 through a wire 31. A CV cable 43 is provided along the wire 31, and a cable head 44 is provided at the tip thereof. A jumper wire 45 branched from the overhead power transmission line 3 is connected to the cable head 44.
[0041]
Thus, even when the insulator device 6 is temporarily sent into the span by the cable jumper method or the long jumper method, the overhead power transmission line 3 is wound around the electric wire reel 5 of a desired length. There is no need to cut the overhead power transmission line 3, and the same effect as described above can be obtained.
[0042]
In the present embodiment, the electric wire reel 5 has a structure that is fixed to the electric wire gripping portion 14 by the restoring force of the overhead power transmission line 3, but is not limited thereto. 14 may be a structure in which the overhead power transmission line 3 is forcibly fixed by an insulating band, an insulation lock, a clip or the like.
[0043]
The combination of the clevis link 7 is not limited to the present embodiment, and may be a combination of a right angle clevis link + a right angle clevis link in consideration of the combination with the lever device 6. According to this, the electric wire reel 5 can also be installed horizontally.
[0044]
Furthermore, the electric wire reels 5 are provided on both sides of the clevis link 7 so that the pair of electric wire reels 5 around which the two overhead electric power transmission lines 3 are wound can be fixed so that the case where the overhead electric power transmission line 3 is a multiconductor is also supported. It is good also as a structure where each can be attached.
[0045]
【The invention's effect】
In short, according to the present invention, it is possible to perform transmission line construction without cutting and compressing and connecting existing wires, and the overhead transmission lines after restoration will not be connected, and the performance of the wires will be reduced. Excellent effect that can be prevented.
[0046]
In addition, the construction cost can be reduced and the construction period can be shortened, and it is also excellent in terms of environmental conservation.
[Brief description of the drawings]
FIG. 1 is a side view showing a state in which a power line winding device according to the present invention is attached to a lever device.
FIG. 2 is a side view showing an electric wire reel of a power line winding device according to the present invention.
3A is an enlarged front view and FIG. 3B is an enlarged side view showing an electric wire gripping portion of an electric wire reel.
4A is a side view and FIG. 4B is a plan view showing a clevis link of a power line winding device according to the present invention.
5A is a plan view and FIG. 5B is a front view showing a clamp of a power transmission line winding device according to the present invention.
FIG. 6 is a plan view showing a power line winding device according to the present invention.
FIGS. 7A and 7B are a side view and a front view, respectively, showing a suspension metal wheel of a power line winding device according to the present invention. FIGS.
8A is a side view and FIG. 8B is a front view showing a state in which a power transmission wire winding device according to the present invention is suspended from a wire.
FIG. 9 is a side view for explaining a transmission line winding method according to the present invention.
FIG. 10 is a side view showing an example in which the power line winding device according to the present invention is applied to a cable jumper method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Transmission line winding apparatus 2 Steel tower 3 Overhead transmission line 5 Electric wire reel 6 Insulator apparatus 7 Clevis link 8 Cotter bolt 9 Nut 11 Clamp 31 Wire 32 Suspension metal car

Claims (3)

An electric reel that winds up an overhead power transmission line that runs between steel towers while rotating from the end of the wire, a rod-shaped clevis link for fixing the electric wire reel to the lever device, a hole in the clevis link , and the electric wire A cotter bolt and nut for fixing the hole of the central member of the reel , and a clamp for fixing the electric wire reel after winding the overhead power transmission line to the clevis link and restricting its rotation A power line winding device.   The power line winding device according to claim 1, wherein the electric wire reel is provided with a suspension metal wheel for rotatably suspending the electric wire reel on a wire or the like connected to the steel tower. A wire reel that winds up the overhead power transmission wire is rotatably suspended on a wire that holds the overhead power transmission wire to the steel tower during the construction of the power transmission wire, and the overhead power transmission wire is rotated from the end of the wire while rotating the wire reel. after Tsu the winding, is fixed to the winding after the wire reel of the overhead transmission line insulator apparatus by clevis link rod type, to fix the wire reel after the winding on the clevis link by clamping the A method for winding a power transmission line, wherein the rotation of the electric wire reel after winding is regulated .

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