JP2001268758A - Replacement method of damaged component of transmission steel tower, and replacement tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting tool which can be used for both compressive material and tensile material for replacement of the damaged component of a transmission steel tower. SOLUTION: This is a replacement tool comprising bands which severally hold both poles of a transmission steel tower and a hydraulic jack which pulls or compresses both bands, being interposed between both bands.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of replacing a damaged member of a power transmission tower and a tool for replacing the same, and more particularly to a method of replacing a horizontal member of a steel pipe transmission tower and a replacement tool used therefor. It is.

[0002]

2. Description of the Related Art A horizontal member of a power transmission tower bears a compressive force or a tensile force depending on an installation location.

When replacing a damaged member caused by corrosion or the like,
The force borne by the damaged member is replaced by the replacement tool. The tension material was reinforced with a turnbuckle and a lever block, but the compression material had no effective method.

[0004]

There has been no replacement tool that can be used for both compression and tension members for replacing damaged members of conventional power transmission towers.

[0005]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention has been made in view of the above circumstances, and has been developed in order to provide a replacement method which can be used for both a compression member and a tension member for replacing a damaged member of a power transmission tower. At both ends of the replacement tool, the two main columns of the power transmission tower are respectively gripped, and a tensile force or a compressive force is generated at both ends of the replacement tool depending on whether the replacement target member is a compressed material or a tensile material. A method of replacing damaged parts of a power transmission tower that operates a hydraulic jack was adopted.

The present invention also provides a replacement tool which can be used for both a compression member and a tension member for replacing a damaged member of a power transmission tower, and a band for gripping both main columns of the power transmission tower. A tool for replacing a damaged member of a power transmission tower, comprising a hydraulic jack interposed between the bands and pulling or compressing the two bands.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on specific embodiments of the accompanying drawings.

FIG. 1 is a front view of a state in which a replacement tool is mounted between both columns of a steel tower, and FIG. 2 is a plan view of FIG.

In order from the left to the right in the figure, band 1,
The connecting member 2, the hydraulic jack 3, the connecting member 4, the connecting member 5, and the band 6 are arranged and connected respectively. The replacement tool is disposed opposite to the support 7.8 so as to sandwich the support 7.8.
Except for the grip portion 8, the configuration is exactly the same.

The band 1 is provided with a notch 11
And a connecting plate 13 fixed to the contact plate 12 by welding.

The connecting member 2 is provided at the left end of the cylindrical body 14 with the support plate 1.
5 and the joining plate 16 is fixed to the right end.

The hydraulic jack 13 has bonding plates 17 and 18 fixed to the left end and the right end, respectively, and is provided with a tension port 20 for the piston rod 19 to extend and a contraction port 21 for the contraction. When pressure oil is supplied from the tension port 20, the piston rod 19 expands, and when pressure oil is supplied to the compression port 21, the piston rod 19 contracts.

The connecting member 4 is provided at the left end of the cylindrical body 22 with the joining plate 2.
3. A bonding plate 24 is fixed to the right end.

The connecting member 5 is connected to the joining plate 2 at the left end of the cylindrical body 25.
6. A support plate 27 is fixed to the right end.

The band 6 has a notch 28 abutting on the column 8.
And a connecting plate 30 fixed to the contact plate 29 by welding.

The band 1 and the connecting member 2 are connected by bolts 31, and the connecting member 2 and the hydraulic jack 3 are connected by bolts (not shown) by bringing the joining plates 16 and 17 into contact with each other.

The hydraulic jack 3 and the connecting member 4 are connected by bolts (not shown) by bringing the respective joining plates 18 and 23 into contact with each other.

The joining plate 24 of the connecting member 4 and the joining plate 26 of the connecting member 5 are brought into contact with each other and connected by bolts (not shown).

The support plate 27 of the connecting member 5 and the support plate 30 of the band 6 are brought into contact with each other and joined by bolts 32.

The replacement tool is mounted on the supporting columns 7.8 by sandwiching the supporting columns 7.8 between the contact plates 12 and 29 of the bands 1.6 and 29. Bolt 33
34 is inserted and fixed.

After the replacement tool is mounted between the columns 7, 8, the columns 7
When the compressive force is applied to the horizontal member mounted on 8, the hydraulic jack 3 is driven so as to pull between the bands 1 and 6, and the piston rod 19 is extended. When a tensile force is applied to the horizontal member, the hydraulic jack 3 is driven so as to compress the space between the bands 1 and 6 and the piston rod 19 is contracted.

The hydraulic jack 3 includes a manual hydraulic pump 4
1 is connected. FIG. 3 shows an example of a hydraulic circuit of the manual hydraulic pump 41.

The connection port 42 of the manual hydraulic pump 41 is connected to the pulling force 20 by a hose (not shown), and the connection port 43 is connected to the contraction port 21 by a hose (not shown).

When the horizontal member is a compressed member, the manual hydraulic pump 41 is switched and when the part a is located at the center position, the pressure oil reaches the pulling port 20 from the connection port 42 and pulls between the bands 1 and 6 to remove the horizontal member. To bear the compressive force.

When the horizontal member is a tensile member, when the manual hydraulic pump 41 is switched to the position b in the center, the pressure oil reaches the compression port 21 from the connection port 43 and compresses the space between the bands 1 and 6. It bears the tensile force of horizontal members.

In the above description, the case where the horizontal member is replaced has been described. However, as shown in FIG.

In this case, a replacement tool is mounted at the center with a multi-plate 22 interposed.

As shown in FIG. 5, arm members 51 and 52 are protruded outward on both sides of columns 7 and 8 of the tower, and a vertical load is applied by suspending a power line or the like at the ends of arm members 51 and 52. At this time, a tensile force is applied to the upper horizontal member 53 and a compressive force is applied to the lower horizontal member 54.

[0029]

As described above, according to the present invention, both main pillars of the power transmission tower are gripped at both ends of the replacement tool with the hydraulic jack interposed therebetween, and the replacement target member is compressed or tensile. This is a method of replacing damaged parts of power transmission towers, in which hydraulic jacks are operated to generate tensile or compressive forces at both ends of the replacement tool according to the requirements. And a replacement method that can be used for both.

Further, the present invention provides a tool for replacing a damaged member of a power transmission tower, comprising a band for gripping both main columns of the power transmission tower, and a hydraulic jack interposed between the two bands to pull or compress between the two bands. Therefore, it is possible to provide a replacement tool that can be used for both a compression member and a tension member for replacing a damaged member of a power transmission tower.

[Brief description of the drawings]

FIG. 1 is a front view of a replacement tool according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a hydraulic circuit diagram of the manual hydraulic pump according to the present invention.

FIG. 4 is a front view showing an example in which the replacement tool of the present invention is used at the time of replacing a diagonal material.

FIG. 5 is a diagram illustrating a tension member and a compression member of a horizontal member.

[Explanation of symbols]

 7… 8 Prop 1.6… Band 4… Hydraulic jack

 ──────────────────────────────────────────────────続 き Continuation of the front page (71) Applicant 500130003 Kiyomasa Yamamoto 3-8-30 Sakamoto, Otsu-shi (72) Inventor Shindai Morikama 82nd Imperial Asuka 305 No. 305 Asuka, Takeda-keinoi-cho, Fushimi-ku, Kyoto-shi (72) Inventor Takashi Ueno Imperial Asuka No. 302, Takeda-Okeinoi-cho, Fushimi-ku, Kyoto 302 (72) Inventor Tetsu Yoshimura 2-5-15-1 Yamatedai, Ibaraki-shi, Osaka (72) Inventor Kiyomasa Yamamoto 3- 8-30 Sakamoto, Otsu-shi F term (reference) 5G367 AA01 AD13

Claims (2)

[Claims] At both ends of a replacement tool with a hydraulic jack interposed therebetween, both main poles of a power transmission tower are gripped, and tension is applied to both ends of the replacement tool according to whether a member to be replaced is a compression member or a tension member. A method of replacing damaged transmission towers by operating hydraulic jacks to generate force or compression. 2. A tool for replacing a damaged member of a power transmission tower, comprising: a band for gripping both main columns of the power transmission tower; and a hydraulic jack interposed between the two bands to pull or compress between the two bands.