JPS639956Y2 - - Google Patents
Info
- Publication number
- JPS639956Y2 JPS639956Y2 JP9247382U JP9247382U JPS639956Y2 JP S639956 Y2 JPS639956 Y2 JP S639956Y2 JP 9247382 U JP9247382 U JP 9247382U JP 9247382 U JP9247382 U JP 9247382U JP S639956 Y2 JPS639956 Y2 JP S639956Y2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- rubber core
- rubber
- fixed
- terminal
- 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 30
- 238000005452 bending Methods 0.000 description 8
- 238000005219 brazing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229920002978 Vinylon Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect 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
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005476 soldering Methods 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, the 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。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。 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. 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, forces such as bending and twisting are applied to the cable due to tilting and turning of the furnace.
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、またはケーブルに
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 was developed based on the above-mentioned circumstances, and aims to provide a water-cooled cable that is free from the risk of its mechanical strength decreasing due to bending, bending, twisting, etc. that act on the cable when energized.
本考案においては、ゴム芯にテンシヨンメンバ
を埋設し、このテンシヨンメンバを端子に引留め
て水冷ケーブル端子部を構成することにより前記
目的を達成している。
In the present invention, the above object is achieved by embedding a tension member in a rubber core and securing the tension member to a terminal to form a water-cooled cable terminal section.
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、星型断面で中心にワイヤ、
金属線、ビニロン等の材料から成るロープ等のテ
ンシヨンメンバ１を有するゴム芯２上には、素線
を撚合せて撚合導体３が形成してあり、ゴム芯２
は撚合導体３の端部より軸方向内部において切断
されている。而して、テンシヨンメンバ１はゴム
芯２端面より若干突出されている。撚合導体３は
ゴムホース４内に収容され、撚合導体３の端部
は、ゴムホース４の端部に水密に取付けた中空端
子５に、ろう着等によつて固着接続されている。
撚合導体３の端末部内には、導体内周に接し中空
端子５の内端よりも導体側に突出するゴム芯固定
パイプ６、その内周に接し中空端子５内端に終端
するセンタパイプ７が固着してあり、ゴム芯２端
部はゴム芯固定パイプ６内に挿入され、そのテン
シヨンメンバ１は、ゴム芯固定パイプ６に、圧
着、ろう着、半田付等により固定され、通水口８
をそなえたゴム芯押え９に前記と同様にして固定
する。なお、図中１０は中空端子５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５の中空部内に連通する通水路１１
が開口されている。
FIGS. 1A and 1B are longitudinal and transverse cross-sectional views of the first embodiment of the present invention.
A twisted conductor 3 is formed by twisting wires on a rubber core 2 having a tension member 1 such as a rope made of a material such as metal wire or vinylon.
is cut axially inward from the end of the twisted conductor 3. Thus, the tension member 1 is slightly protruded from the end surface of the rubber core 2. The twisted conductor 3 is housed in a rubber hose 4, and the end of the twisted conductor 3 is fixedly connected to a hollow terminal 5 watertightly attached to the end of the rubber hose 4 by brazing or the like.
Inside the terminal portion of the twisted conductor 3, there is a rubber core fixing pipe 6 that contacts the inner periphery of the conductor and projects further toward the conductor than the inner end of the hollow terminal 5, and a center pipe 7 that contacts the inner periphery and terminates at the inner end of the hollow terminal 5. is fixed, the end of the rubber core 2 is inserted into the rubber core fixing pipe 6, and the tension member 1 is fixed to the rubber core fixing pipe 6 by crimping, brazing, soldering, etc. 8
It is fixed in the same manner as described above to the rubber core presser 9 equipped with. Note that reference numerals 10 in the figure are axial grooves provided on the circumferential surface near the inner end of the hollow terminal 5, and the bottoms of these grooves are provided with water passages 11 that communicate with the inside of the hollow portion of the hollow terminal 5.
is opened.
第２図Ａ，Ｂはゴム芯ホルダ９の一例を拡大し
て示している。この例ではテンシヨンメンバ１
は、圧着によりゴム芯ホルダ９に固着されてい
る。さらに、ゴム芯ホルダ９の周面にはねじ９ａ
が刻設されており、ゴム芯固定パイプ６に対しね
じ込んで固定するようになつている。 FIGS. 2A and 2B show an example of the rubber core holder 9 on an enlarged scale. In this example, tension member 1
is fixed to the rubber core holder 9 by crimping. Further, a screw 9a is provided on the circumferential surface of the rubber core holder 9.
is engraved and is screwed into the rubber core fixing pipe 6 to be fixed.
第１図と同一部分には同一符号を附した第３図
は、本考案の他の実施例を示す。この実施例は分
割導体１２をゴム芯２上に配置して成る導体を有
するケーブルにつき本考案を適用したものであつ
て、導体と中空端子の接続態様が前記実施例と若
干異るのみで、他の構造は同一である。 FIG. 3, 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 cable having a conductor in which split conductors 12 are arranged on a rubber core 2, and the only difference is that the connection between the conductor and the hollow terminal is slightly different from the previous embodiment. Other structures are the same.
上記構成の本考案水冷ケーブルにあつては、ゴ
ム芯２の中心にテンシヨンメンバ１が埋設されて
いるため、ゴム芯２上に導体を撚合せる際の圧縮
力によるゴム芯２の軸方向の延伸は最小限とされ
る。 In the water-cooled cable of the present invention having the above configuration, since the tension member 1 is embedded in the center of the rubber core 2, the compression force when twisting the conductors on the rubber core 2 causes the axial direction of the rubber core 2 to Stretching is kept to a minimum.
上記のように当初のゴム芯の延伸が最小限であ
るのに加えて、ゴム芯２のテンシヨンメンバ１
を、ゴム芯押え９、ゴム芯固定パイプ６を介して
中空端子５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２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 addition to the minimal stretching of the initial rubber core as described above, the tension member 1 of the rubber core 2
is fixed to the hollow terminal 5 via the rubber core holder 9 and the rubber core fixing pipe 6, so that it does not bend when energized.
The bending and twisting caused by the rotation and tilting of the furnace act,
Even if the compressive force of the rubber core by the conductor is loosened, the rubber core 2 will not contract 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。また、
ゴム芯押え９を、センタパイプ７に直接固着し、
ゴム芯固定パイプ６を省略してもよい。 Note that the present invention is not limited to the above-mentioned embodiments; for example, the rubber core 2 may be a central inclusion made of plastic or other rubber-like elastic material. Also,
Fix the rubber core presser 9 directly to the center pipe 7,
The rubber core fixing pipe 6 may be omitted.
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働率を向上させること
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はその要部の正面図、縦断
面図、第３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…テンシヨンメンバ、２…ゴム芯、３…撚合
導体、４…ゴムホース、５…中空端子、６…ゴム
芯固定パイプ、７…センタパイプ、９…ゴム芯押
え。
Figures 1A and B are longitudinal and cross-sectional views of one embodiment of the present invention, Figures 2A and B are front views and longitudinal cross-sections of the main parts, and Figures 3A and B are views of other embodiments of the present invention. FIG. 1... Tension member, 2... Rubber core, 3... Twisted conductor, 4... Rubber hose, 5... Hollow terminal, 6... Rubber core fixing pipe, 7... Center pipe, 9... Rubber core holder.
Claims (1)
した中心介在物上に導体を配置したものを、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、前記テ
ンシヨンメンバを前記導体内に配置され前記中空
端子に固定したパイプに固着したゴム芯押えを介
して前記中空端子に引留めたことを特徴とする水
冷ケーブル。 A conductor is arranged on a central inclusion made of a rubber-like elastic body and has a tension member buried therein, and the conductor 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. 1. A water-cooled cable, characterized in that a flexion member is fixed to the hollow terminal via a rubber core presser fixed to a pipe arranged inside the conductor and fixed to the hollow terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9247382U JPS58195910U (en) | 1982-06-22 | 1982-06-22 | water cooling cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9247382U JPS58195910U (en) | 1982-06-22 | 1982-06-22 | water cooling cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58195910U JPS58195910U (en) | 1983-12-26 |
| JPS639956Y2 true JPS639956Y2 (en) | 1988-03-24 |
Family
ID=30222710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9247382U Granted JPS58195910U (en) | 1982-06-22 | 1982-06-22 | water cooling cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58195910U (en) |
-
1982
- 1982-06-22 JP JP9247382U patent/JPS58195910U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58195910U (en) | 1983-12-26 |
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