JPS6230434Y2 - - Google Patents
Info
- Publication number
- JPS6230434Y2 JPS6230434Y2 JP17896382U JP17896382U JPS6230434Y2 JP S6230434 Y2 JPS6230434 Y2 JP S6230434Y2 JP 17896382 U JP17896382 U JP 17896382U JP 17896382 U JP17896382 U JP 17896382U JP S6230434 Y2 JPS6230434 Y2 JP S6230434Y2
- Authority
- JP
- Japan
- Prior art keywords
- rubber core
- conductor
- rubber
- fixed
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004020 conductor Substances 0.000 claims description 23
- 238000005452 bending Methods 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案は例えばアーク炉等において使用する水
冷ケーブルに係る。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a water-cooled cable used in, for example, an arc furnace.
大電流容量の水冷ケーブルは、星型断面のゴム
芯上に導体を撚合せて中空導体を形成し、これを
ゴムホース内に収容して、導体端部に固着した中
空端子から冷却水を供給するようにしている。あ
るいは、星型断面のゴム芯上に分割導体を配置し
て導体を構成し、これをゴムホース内に収容し導
体端部に固着した中空端子から冷却水を供給する
ようにしている。
Water-cooled cables with high current capacity are made by twisting conductors on a rubber core with a star-shaped cross section to form a hollow conductor, which is housed in a rubber hose, and cooling water is supplied from a hollow terminal fixed to the end of the conductor. That's what I do. Alternatively, a conductor is constructed by arranging a split conductor on a rubber core with a star-shaped cross section, and the conductor is housed in a rubber hose, and cooling water is supplied from a hollow terminal fixed to the end of the conductor.
上記何れの構成の水冷ケーブルにおいても、ゴ
ム芯は撚合わせ時の圧縮により軸方向には伸長さ
れている。 In any of the above water-cooled cables, the rubber core is elongated in the axial direction due to compression during twisting.
上記構成の水冷ケーブルは、製鋼用アーク炉等
において使用されており、炉の傾動、旋回等に追
従し得るようトランス側、炉側それぞれのターミ
ナルヘツドに宙吊りで取付けられている。また、
大電流通電のため一相多条（通常は４条）で使用
する。従つて、通電時に同相内のケーブル間に生
じる吸引力によつて、それらのケーブルは収束す
るように変位する。なお、上記の吸引力は同一ケ
ーブル内の素線間にも作用する。 The water-cooled cable having the above structure is used in steel-making arc furnaces and the like, and is suspended in the terminal head of each of the transformer side and the furnace side so as to be able to follow the tilting, turning, etc. of the furnace. Also,
It is used in one phase with multiple wires (usually 4 wires) to carry large current. Therefore, the attractive force generated between the cables in the same phase when energized causes the cables to be displaced so as to converge. Note that the above-mentioned attraction force also acts between the strands within the same cable.
これにより、ケーブルの端子近傍の部分には曲
げが作用し、繰返し曲げによる素線の断線を生じ
るおそれがある。また、ケーブルには炉の傾動、
旋回により曲げ、ねじり等の力が作用する。 As a result, bending acts on a portion of the cable near the terminal, and there is a risk that the wire may break due to repeated bending. In addition, the cable has tilting of the furnace,
Turning causes bending, twisting, and other forces.
上記のような曲げ、ねじり等の力が作用する
と、導体がゴム芯を押圧する力がゆるみ、導体撚
合せ時のゴム芯に対する圧縮力が減少し、ゴム芯
は軸方向に収縮し導体を中空端子に固着するため
のセンタパイプ端末と、ゴム芯端末との距離が大
きくなる。そのため、導体の端子近傍の中心介在
物が存在しないこととなり、前記の通電時の導体
の曲げ変位は大きくなる。さらに、前記の部分は
局部的に絞られ断面係数が小さくなり、機械的強
度が低下する欠点もあつた。 When the above-mentioned forces such as bending and torsion are applied, the force with which the conductor presses against the rubber core loosens, the compressive force against the rubber core during conductor twisting decreases, and the rubber core contracts in the axial direction, making the conductor hollow. The distance between the center pipe end for fixing to the terminal and the rubber core end becomes large. Therefore, there is no center inclusion near the terminal of the conductor, and the bending displacement of the conductor during the above-mentioned energization becomes large. Furthermore, the above-mentioned portions were locally constricted, resulting in a small section modulus and a reduction in mechanical strength.
本考案は上記の事情に基きなされたもので、通
電時ケーブルに作用する曲げ、アーク炉等の旋回
傾動時にはケーブルに作用する曲げ、ねじり等に
より機械的強度が低下するおそれのない水冷ケー
ブルを得ることを目的としている。
The present invention has been made based on the above circumstances, and provides a water-cooled cable that is free from the risk of its mechanical strength being reduced due to the bending that is applied to the cable when energized, or the bending and torsion that is applied to the cable during rotation and tilting of an arc furnace, etc. The purpose is to
本考案においては、中空端子に導体を固着する
ためのセンタパイプに、導体センタパイプ間に介
在させて、先端をセンタパイプから突出させてゴ
ム芯固定パイプを固着し、ゴム芯端部をゴム芯固
定パイプ内に挿入し、ゴム芯固定パイプに周方向
絞りを加えてゴム芯を掴持させるようにして、前
記目的を達成している。
In the present invention, a rubber core fixing pipe is fixed to the center pipe for fixing the conductor to the hollow terminal by interposing it between the conductor center pipes, with its tip protruding from the center pipe, and the end of the rubber core is fixed to the rubber core fixing pipe. The above object is achieved by inserting it into a fixed pipe and applying a circumferential restriction to the rubber core fixed pipe to grip and hold the rubber core.
第１図Ａ，Ｂは本考案の第１の実施例の縦断面
図、横断面図であり、星型断面のゴム芯１上には
素線を撚合せて撚合導体２が形成してあり、ゴム
芯１は撚合導体２の端部より軸方向端部において
切断されている。
FIGS. 1A and 1B are a longitudinal sectional view and a transverse sectional view of the first embodiment of the present invention, in which a twisted conductor 2 is formed by twisting strands on a rubber core 1 having a star-shaped cross section. The rubber core 1 is cut at the axial end from the end of the twisted conductor 2.
撚合導体２はゴムホース３内に収容され、その
端部を中空端子４のセンタパイプ５に固着したゴ
ム芯固定パイプ６を介して、中空端子４にろう付
その他により接続されている。なお、ゴム芯固定
パイプ６は中空端子端面から突出させてあり、ゴ
ム芯１はゴム芯固定パイプ６内にその端部を挿入
され、ゴム芯固定パイプ６に施こした周方向絞り
６ａによつてパイプに固定されている。 The twisted conductor 2 is housed in a rubber hose 3, and its end is connected to the hollow terminal 4 by brazing or other means via a rubber core fixing pipe 6 fixed to the center pipe 5 of the hollow terminal 4. The rubber core fixing pipe 6 is made to protrude from the end face of the hollow terminal, and the end of the rubber core 1 is inserted into the rubber core fixing pipe 6, and the rubber core fixing pipe 6 is compressed by a circumferential restriction 6a. It is fixed to the pipe.
なお、図中７は中空端子４内端近傍周面に設け
た軸方向の溝であつて、これらの溝の底面には中
空端子４の中空部内に連通する通水路８が開口さ
れている。 Note that 7 in the figure is an axial groove provided on the circumferential surface near the inner end of the hollow terminal 4, and a water passage 8 communicating with the inside of the hollow portion of the hollow terminal 4 is opened at the bottom surface of these grooves.
第１図と同一部分には同一符号を付した第２図
は本考案の他の実施例を示す。この実施例は、分
割導体２０をゴム芯１上に配置して成る水冷ケー
ブルに本考案を適用したものである。この実施例
においては、ゴム芯固定パイプ６の内端内周には
多数の突起６ｂが設けてあり、ゴム芯固定パイプ
６の内端に絞りを加えて縮径してゴム芯を固定し
ている。 FIG. 2, in which the same parts as in FIG. 1 are given the same reference numerals, shows another embodiment of the present invention. In this embodiment, the present invention is applied to a water-cooled cable in which divided conductors 20 are arranged on a rubber core 1. In this embodiment, a large number of protrusions 6b are provided on the inner periphery of the inner end of the rubber core fixing pipe 6, and the inner end of the rubber core fixing pipe 6 is throttled to reduce its diameter and fix the rubber core. There is.
上記構成の本考案水冷ケーブルにおいては、ゴ
ム芯１を、ゴム芯固定パイプ６を介して中空端子
４に引留めているので、通電時の曲げ、炉の旋回
傾動に基く曲り、ねじれが作用して、導体による
ゴム芯の圧縮力がゆるめられても、ゴム芯１が収
縮変位することはなく、導体端末近傍の中心介在
物が消失することはない。従つて、機械的強度の
低下は防止され、水冷ケーブルの長寿命化をはか
ることができる。 In the water-cooled cable of the present invention having the above structure, the rubber core 1 is secured to the hollow terminal 4 via the rubber core fixing pipe 6, so that bending during energization, bending and twisting due to the rotation and tilting of the furnace are not applied. Therefore, even if the compressive force of the rubber core by the conductor is loosened, the rubber core 1 will not shrink and displace, and the central inclusion near the conductor terminal will not disappear. Therefore, reduction in mechanical strength is prevented, and the life of the water-cooled cable can be extended.
なお、本考案は上記実施例のみに限定されない
例えばゴム芯２はプラスチツクその他ゴム状弾性
体から成る中心介在物としてもよい。 It should be noted that the present invention is not limited to the above embodiments, for example, the rubber core 2 may be a central inclusion made of plastic or other rubber-like elastic material.
上記のように水冷ケーブルの長寿命化がなされ
るので、その交換頻度を小とすることができ、例
えば製鋼用アーク炉等の稼動率を向上させをこと
ができる。
Since the life of the water-cooled cable is extended as described above, the frequency of its replacement can be reduced, and the operating rate of, for example, an arc furnace for steelmaking can be improved.
第１図Ａ，Ｂは本考案一実施例の縦断面図、横
断面図、第２図Ａ，Ｂは本考案の他の実施例の縦
断面図、横断面図である。
１……ゴム芯、２……撚合導体、３……ゴムホ
ース、４……中空端子、６……ゴム芯固定パイ
プ、５……センタパイプ。
1A and 1B are a longitudinal sectional view and a cross sectional view of one embodiment of the present invention, and FIGS. 2A and 2B are a longitudinal sectional view and a transverse sectional view of another embodiment of the present invention. 1...Rubber core, 2...Twisted conductor, 3...Rubber hose, 4...Hollow terminal, 6...Rubber core fixing pipe, 5...Center pipe.
Claims (1)
置したものをゴムホース内に収容し、ゴムホース
端末に水密に固着した中空端子と前記導体とを固
着接続し、前記中心介在物を前記中空端子のセン
タパイプと前記導体間に介在させそれらに固着し
たゴム芯固定パイプ内に挿入し、前記ゴム芯商定
パイプに周方向絞りを施して固定したことを特徴
とする水冷ケーブル。 A conductor arranged on a central inclusion made of a rubber-like elastic body is housed in a rubber hose, and the conductor is fixedly connected to a hollow terminal that is watertightly fixed to the end of the rubber hose, and the central inclusion is connected to the hollow terminal. A water-cooled cable characterized in that it is inserted into a rubber core fixing pipe interposed between a center pipe and the conductor and fixed to them, and fixed by applying a circumferential restriction to the rubber core commercial pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17896382U JPS5985042U (en) | 1982-11-29 | 1982-11-29 | water cooling cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17896382U JPS5985042U (en) | 1982-11-29 | 1982-11-29 | water cooling cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5985042U JPS5985042U (en) | 1984-06-08 |
| JPS6230434Y2 true JPS6230434Y2 (en) | 1987-08-05 |
Family
ID=30388404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17896382U Granted JPS5985042U (en) | 1982-11-29 | 1982-11-29 | water cooling cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5985042U (en) |
-
1982
- 1982-11-29 JP JP17896382U patent/JPS5985042U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5985042U (en) | 1984-06-08 |
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