JPH09260052A - Electrode support device - Google Patents
Electrode support deviceInfo
- Publication number
- JPH09260052A JPH09260052A JP9352896A JP9352896A JPH09260052A JP H09260052 A JPH09260052 A JP H09260052A JP 9352896 A JP9352896 A JP 9352896A JP 9352896 A JP9352896 A JP 9352896A JP H09260052 A JPH09260052 A JP H09260052A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- current
- block
- connecting rod
- pulling tool
- 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.)
- Pending
Links
Landscapes
- Discharge Heating (AREA)
- Furnace Details (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はアーク炉或いはレー
ドルファーネスなどの加熱用電極を用いた炉において、
その電極を支持するようにしている電極支持装置に関す
る。TECHNICAL FIELD The present invention relates to an arc furnace or a furnace using a heating electrode such as a ladle furnace,
It relates to an electrode supporting device adapted to support the electrode.
【０００２】[0002]
【従来の技術】この種の電極支持装置としては、支腕
と、支腕の先端に着脱自在に取り付けられ、かつ、反支
腕側には電極を添え付けてその電極に対して通電する為
の通電面を備えている通電ブロックと、電極を上記通電
面に向けて引き寄せる為のＵ字状形成の引寄具とを備
え、上記引寄具は支腕内に備えさせた操作手段に連結し
たものがある（例えば特開平６−２９０８７号公報参
照）。2. Description of the Related Art An electrode supporting device of this type is detachably attached to a supporting arm and a tip of the supporting arm, and an electrode is attached to the side opposite to the supporting arm to energize the electrode. An energization block having a current-carrying surface and a U-shaped pulling tool for drawing the electrode toward the current-carrying surface. The pulling tool is connected to an operating means provided in the supporting arm. Some of them have been made (see, for example, JP-A-6-29087).
【０００３】上記構成のものは、操作手段によって引寄
具を操作することにより通電ブロックに対して電極を締
め付けたり弛めたり出来るので、電極を所望の上下位置
にもたらした状態で締め付けて支持できる。又その電極
に通電する場合、反支腕側の通電面からストレートに通
電できるので、通電経路での電気抵抗による電力ロスを
最小限に抑えられる。In the above structure, the electrode can be clamped or loosened with respect to the current-carrying block by operating the pulling tool by the operating means, so that the electrode can be clamped and supported while being brought to a desired vertical position. . Further, when the electrodes are energized, they can be energized straight from the energization surface on the side opposite to the supporting arm, so that the power loss due to the electric resistance in the energizing path can be minimized.
【０００４】[0004]
【発明が解決しようとする課題】しかし上記構成の電極
支持装置では通電ブロックや引寄具が傷んでその取り替
えを行う場合、先ず傷んだものの取り外しに当たって
は、支腕から通電ブロックを取り外す作業と、操作手段
から引寄具を切り離す作業を要する。又取り替え用のも
のを取付けるに当たっても、新しい引寄具を支腕内の操
作手段に連結する作業と、新しい通電ブロックを支腕に
取付ける作業を要する。それらの作業の間は炉の稼働を
休止させねばならぬ為、上記作業工数が多い分、炉の生
産性が阻害される問題点があった。However, in the electrode supporting device having the above-mentioned structure, when the current-carrying block or the pulling tool is damaged and needs to be replaced, first of all, when removing the damaged one, the work of removing the current-carrying block from the supporting arm, The work of separating the pulling tool from the operating means is required. Also, when installing the replacement one, it is necessary to connect the new pulling tool to the operating means in the supporting arm and to install the new energizing block on the supporting arm. Since the operation of the furnace must be stopped during these operations, there is a problem that the productivity of the furnace is hindered due to the large number of man-hours mentioned above.
【０００５】上記取り替えを作業性良く行うことが出来
るものとして、支腕を相互にフランジ連結した後部支腕
と先部支腕とから構成し、電極に対する通電部材や引寄
具やその操作手段等を先部支腕に備えさせたものがある
（例えば特表平３−５００１０７号公報参照）。In order to perform the above replacement with good workability, the supporting arms are composed of a rear supporting arm and a front supporting arm, which are flange-connected to each other, and a current-carrying member for the electrode, a pulling tool, and an operating means thereof. There is one in which the front support arm is provided (for example, see JP-A-3-500107).
【０００６】この構成のものは、通電部材や引寄具の取
り替えの場合、後部支腕に対する先部支腕の脱着だけで
取り替えが出来るので作業工数が少なくて良く、取り替
え作業の為の炉の休止期間を極めて短くすることが出来
て、そのぶん炉の生産性の向上を期待できる。With this structure, when the energizing member and the pulling tool are replaced, since the replacement can be performed only by attaching and detaching the front supporting arm to the rear supporting arm, the man-hours required for the replacement can be reduced. The idle period can be shortened extremely, and the productivity of the furnace can be expected to improve.
【０００７】しかし上記構成のものは、通電部材、引寄
具、操作手段、先部支腕等が一組となったものが後部支
腕に対し脱着されるので、上記取り替えの場合、通電部
材や引寄具或いは操作手段の重量や嵩張りのみならず、
先部支腕の重量や嵩張りが加算され、取り替え作業が難
儀となる問題点があった。又上記取り替えの場合、先部
支腕も一緒に取り替えてしまう為、無駄が多いという問
題点があった。However, in the case of the above-mentioned structure, since a set of the current-carrying member, the pulling tool, the operating means, the front support arm and the like is attached to and detached from the rear support arm, in the case of the above replacement, the current-carrying member is used. Not only the weight and bulk of the pulling tool or operating means,
The weight and bulkiness of the front support arm are added, which makes replacement work difficult. Further, in the case of the above replacement, the front support arm is also replaced, which is a waste of much.
【０００８】本件出願の電極支持装置は上記従来技術の
問題点を解決する為に提供するものである。その目的
は、電極の締め弛めが可能で電極を所望の上下位置にし
た状態でその支持を行い得るようにした電極支持装置を
提供することである。他の目的は、支持した電極に通電
する場合、短い通電経路でもって電力ロス少なく通電で
きるようにすることである。他の目的は、通電ブロック
や引寄具の損傷に伴ってそれを取り替える場合、支腕に
対する通電ブロックの脱着でもって簡単、迅速に取り替
えが出来て、炉の生産性の向上を図り得るようにするこ
とである。他の目的は、上記取り替えの場合、支腕は残
したままで通電ブロックやそれに付設されている引寄具
等の取り替えが出来るようにして、前記従来技術の如き
重量や嵩張りに関して難儀を覚えることなく取り替え作
業を行え、又、取り替えに伴う無駄を出来るだけ少なく
出来るようにすることである。他の目的は、通電ブロッ
クから電極に通電を行う場合、通電ブロックから操作手
段や引寄具を経由して分流の電流が電極に流れることを
防止して、分流の電流のスパークによる操作手段や引寄
具の損傷を未然に防止できるようにすることである。他
の目的は、上記分流防止の為の絶縁材を炉からの高熱や
ダスト等が届きにくい場所に配設することにより、該絶
縁材の長寿命化を図り得るようにすることである。他の
目的及び利点は図面及びそれに関連した以下の説明によ
り容易に明らかになるであろう。The electrode supporting device of the present application is provided to solve the above-mentioned problems of the prior art. It is an object of the present invention to provide an electrode supporting device capable of tightening and loosening an electrode and supporting the electrode in a desired vertical position. Another object is to allow the supported electrodes to be energized through a short energizing path with little power loss. Another purpose is to make it easier and quicker to replace the energization block or the pulling tool when it is replaced due to damage to the support arm, so that the productivity of the furnace can be improved. It is to be. For another purpose, in the case of the above replacement, it is possible to replace the energizing block and the pulling tool attached to it while leaving the supporting arm left, and feel the difficulty regarding the weight and bulkiness as in the prior art. The replacement work can be carried out without waste, and the waste associated with the replacement can be reduced as much as possible. Another purpose is to prevent the shunt current from flowing from the current block to the electrode via the operating means or the pulling device when the current is supplied from the current block to the operating means by the spark of the shunt current. It is to prevent damage to the puller. Another purpose is to extend the life of the insulating material by arranging the insulating material for preventing the shunt in a place where high heat or dust from the furnace is hard to reach. Other objects and advantages will be more readily apparent from the drawings and the following description associated therewith.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成する為
に、本願発明における電極支持装置は、先端部に中空部
を備える支腕と、支腕の先端に着脱自在に取り付けら
れ、かつ、反支腕側には電極を添え付けてその電極に対
して通電する為の通電面を備えている通電ブロックと、
上記通電面に添え付ける電極を囲んでその電極を上記通
電面に向けて引き寄せる為のＵ字状形成の引寄具と、上
記引寄具を操作する為の操作手段とを備える電極支持装
置において、上記通電ブロックの支腕側においては上記
中空部に連結杆を進退自在に配置し、上記引寄具の両端
部は通電ブロックの側方に配置する連結部材を介して上
記連結杆に連結して、該連結杆の進退により、上記引寄
具の懐部に位置させる電極を上記通電面に締付できるよ
うにし、上記操作手段は上記中空部に配置しかつ通電ブ
ロックの支腕側に固着し、操作手段の可動部は上記連結
杆に連結して、操作手段の操作により連結杆を進退操作
させて通電ブロックの通電面に添う電極を締め弛め出来
るようにしたものである。In order to achieve the above object, an electrode supporting device according to the present invention comprises a support arm having a hollow portion at its tip and a support arm detachably attached to the tip of the support arm. An energizing block having an energizing surface for attaching an electrode to the supporting arm side and energizing the electrode,
An electrode supporting device comprising a U-shaped puller for enclosing an electrode attached to the current-carrying surface and pulling the electrode toward the current-carrying surface, and an operating means for operating the tool. On the supporting arm side of the current-carrying block, a connecting rod is arranged in the hollow portion so as to be movable back and forth, and both ends of the pulling tool are connected to the connecting rod via a connecting member arranged laterally of the current-carrying block. By moving the connecting rod forward and backward, the electrode positioned in the pocket of the pulling tool can be tightened on the current-carrying surface, and the operating means is arranged in the hollow portion and fixed to the supporting arm side of the current-carrying block. The movable portion of the operating means is connected to the connecting rod so that the connecting rod can be moved back and forth by operating the operating means to tighten and loosen the electrodes along the current-carrying surface of the current-carrying block.
【００１０】[0010]
【発明の実施の形態】以下本願発明の実施の形態を示す
図面について説明する。図１において、１はアーク炉を
示す。２は該アーク炉における炉、３は炉の中央部に備
えさせたアーク発生用の電極を示し、３相交流でのアー
クの発生の為に３本を備えている。４は電極支持装置
で、上記アーク発生用の電極３を炉２に対して所定の上
下位置で支えると共に、その支持状態において該電極３
にアーク発生用の電流を供給する為のものであり、上記
３本の電極のために３組が備わっている。該電極支持装
置４は周知のアーク炉の電極支持装置と同様に、電極支
柱（図示せず）と、その電極支柱によって支えられた支
腕５と、その支腕５の先端部に備えた電極クランプ（電
極把持装置とも呼ぶ）６とから成る。支腕５は上記電極
３を炉２の側方から支える為のもので、炉２の側方から
炉２の中央部にまで届く充分な長さを有する。該支腕５
として、本例では上記電流を通ずることの出来る導体支
腕を例示する。尚図において７は電極支柱による支腕５
の支持部分、８は上記電流の供給の為に支腕５の後端部
に設けたケーブル接続部を夫々示す。DETAILED DESCRIPTION OF THE INVENTION The drawings showing the embodiments of the present invention will be described below. In FIG. 1, 1 shows an arc furnace. Reference numeral 2 denotes a furnace in the arc furnace, and 3 denotes an arc generating electrode provided in the center of the furnace, and three electrodes are provided for generating an arc in a three-phase alternating current. Reference numeral 4 denotes an electrode support device which supports the electrode 3 for arc generation at a predetermined vertical position with respect to the furnace 2 and, in the supported state, the electrode 3
To supply an electric current for arc generation, and three sets are provided for the above three electrodes. The electrode supporting device 4 is similar to a well-known electrode supporting device of an arc furnace, an electrode support (not shown), a support arm 5 supported by the electrode support, and an electrode provided at the tip of the support arm 5. And a clamp (also referred to as an electrode gripping device) 6. The support arm 5 is for supporting the electrode 3 from the side of the furnace 2, and has a sufficient length to reach from the side of the furnace 2 to the central portion of the furnace 2. The supporting arm 5
As an example, in this example, a conductor support arm capable of passing the current is illustrated. In the figure, 7 is a supporting arm 5 by an electrode support.
The reference numeral 8 designates a cable connecting portion provided at the rear end portion of the supporting arm 5 for supplying the current.
【００１１】次に上記支腕５の先端部とそこに備えた上
記電極クランプ６とを詳細に示す図２乃至図４について
説明する。先ず、支腕５は水冷構造となっており、９は
冷却水の通水路を示す。又支腕５は中空の筒状に形成し
ている。10は支腕５の先端部における中空部を示し、電
極クランプ６における一部の部材を収容する為の収容部
となっている。11は通電ブロックの取付の為に支腕５の
先端に備えた取付部材で、フランジを例示する。12は通
電ブロックの接続面と重合してアーク発生用の電流を通
電ブロックに流す為の接続面を示す。13は後述する連結
杆を上記中空部に存置させる為に支腕５の側壁に設けた
欠如部を示し、支腕５の先端の側からの出し入れを可能
にする為に図４に明示する如く支腕５の先端に開放させ
てある。2 to 4 showing in detail the distal end portion of the supporting arm 5 and the electrode clamp 6 provided therein will be described. First, the supporting arm 5 has a water cooling structure, and 9 indicates a water passage for cooling water. The supporting arm 5 is formed in a hollow cylindrical shape. Reference numeral 10 denotes a hollow portion at the tip portion of the supporting arm 5, which is a housing portion for housing a part of the electrode clamp 6. Reference numeral 11 denotes a mounting member provided at the tip of the supporting arm 5 for mounting the energizing block, and a flange is illustrated. Reference numeral 12 denotes a connecting surface for passing an electric current for generating an arc through the connecting block of the current-carrying block. Reference numeral 13 denotes a lacking portion provided on the side wall of the supporting arm 5 for allowing a connecting rod to be described later to be placed in the hollow portion, and as shown in FIG. 4 in order to allow the leading end of the supporting arm 5 to be taken in and out. It is opened at the tip of the support arm 5.
【００１２】次に電極クランプ６は支腕５の先端におい
て電極３を保持すると共にその保持した電極３にアーク
用の電流を流す為のものであり、通電ブロック16と、引
寄具18と、保持具19と、連結杆20と、操作手段22とを備
える。以下各々について説明する。Next, the electrode clamp 6 is for holding the electrode 3 at the tip of the support arm 5 and for supplying an arc current to the held electrode 3, and includes an energizing block 16, a pulling tool 18, and A holder (19), a connecting rod (20), and an operating means (22) are provided. Each will be described below.
【００１３】通電ブロック16はアーク発生用の電力を電
極に流す為のもので、電力ロスを少なくする為に電気抵
抗の低い材料例えば銅で形成している。又該通電ブロッ
クは電極を把持する為の部材としても機能するもので、
電極の受部材ともなっている。24は支腕５に対する取付
部で前記フランジ11との連結の為のフランジを例示す
る。25は前記接続面12に重合させる為の接続面を示す。
該通電ブロック16は支腕５による電極３の前記のような
支持の為に支腕５の先端に取り付けている。又その取付
は、通電ブロック16の損傷時における交換を可能にする
為に着脱自在に取り付けている。例えば上記フランジ24
を多数のボルト及びナットによってフランジ11に連結し
ている。26は通電面を示し、電極３を添え付けてその電
極３に対してアーク発生用の電流を通電する為の面であ
る。更に説明すると、電極３の側面と接触しその接触部
においてアーク発生用の電流を電極に流す為の部分であ
り、電極３の側面との接触抵抗を低くする為に電極の側
面の形状に対応した曲面に形成して、広い面積でもって
電極と接触し得るようにしている。又該通電面26は電極
３の把持の為にその電極を受ける為の受面ともなってい
る。該通電面26は、支腕５の側から供給されるアーク発
生用の電流を最短距離で電極３に与えるようにする為
に、即ち上記電流が通電ブロック16内を通る距離を出来
るだけ短くしてそこでの電力損失を低減させる為に、図
示の如く通電ブロックにおける反支腕側に備えている。
27は上記保持具19を取付ける為の取付面を示し、該通電
ブロック16における支腕側の面をもって構成している。The current-carrying block 16 is for passing electric power for arc generation to the electrodes, and is made of a material having a low electric resistance, for example, copper in order to reduce power loss. The energizing block also functions as a member for gripping the electrode,
It also serves as a receiving member for the electrode. Reference numeral 24 is a mounting portion for the supporting arm 5, and illustrates a flange for connecting with the flange 11. Reference numeral 25 denotes a connecting surface for superimposing on the connecting surface 12.
The energizing block 16 is attached to the tip of the supporting arm 5 for supporting the electrode 3 by the supporting arm 5 as described above. Further, the mounting is made detachable so that the energizing block 16 can be replaced when it is damaged. For example, above flange 24
Are connected to the flange 11 by a large number of bolts and nuts. Reference numeral 26 denotes a current-carrying surface, which is a surface for attaching the electrode 3 and supplying a current for arc generation to the electrode 3. More specifically, it is a portion for contacting with the side surface of the electrode 3 and flowing a current for arc generation in the contact portion to the electrode, and corresponding to the shape of the side surface of the electrode in order to reduce the contact resistance with the side surface of the electrode 3. It is formed into a curved surface so that it can come into contact with the electrode over a wide area. The current-carrying surface 26 also serves as a receiving surface for receiving the electrode 3 for gripping the electrode 3. The current-carrying surface 26 is provided so that the arc-generating current supplied from the support arm 5 side is applied to the electrode 3 at the shortest distance, that is, the distance through which the current passes through the current-carrying block 16 is made as short as possible. In order to reduce the power loss there, it is provided on the anti-support arm side of the energization block as shown in the figure.
Reference numeral 27 denotes a mounting surface for mounting the holder 19, which is constituted by a surface of the energizing block 16 on the supporting arm side.
【００１４】引寄具18は上記通電面26に添え付ける電極
３を囲んでその電極を上記通電面26に向けて引き寄せる
為のものである。該引寄の目的は、電極３の保持とその
保持状態において通電面26と電極３の側面とを通電の為
に接触抵抗が低い状態に接触させる為である。上記電極
を囲む目的は、電極３を安定な状態で、即ち横に逃げた
りすることを防止した状態で通電面26に押し付けること
ができるようにする為であり、その目的の為にＵ字状に
形成している。該引寄具18は水冷構造となっており、30
は冷却水の通水路を示す。31は該引寄具18における懐部
を示し、電極３をその引寄の為にホールドする為の部分
である。該引寄具18について更に説明する。32は引き力
伝達部で、電極３を通電面26に向けて引き寄せる場合に
おいては電極３に引寄の為の力を加える為の部分であ
り、引き寄せた電極３を通電面26との間で挟持する場合
には挟持の為の力を加える為の部分である。該伝達部32
は、電極の横ずれを防止できるようにする為に電極３の
側面の形状に対応した曲面に形成している。尚33は該伝
達部32の内面側に備えさせたクランプ部材で、その内面
33ａは電極３の滑り止めの為に粗面としてある。次に3
5，35は通電ブロック16を間にして相互に反対側に配置
される引寄具18と操作手段22とを連結する為の連結部材
を示し、通電ブロックを避けてその連結を行う為に通電
ブロック16の側方に配置している。該連結部材35は上記
引寄具18の両側の端部34に対して夫々一体に連結してお
り、又上記連結杆20との連結の為の透孔を備えている。The pulling tool 18 surrounds the electrode 3 attached to the conducting surface 26 and draws the electrode 3 toward the conducting surface 26. The purpose of the pulling is to hold the electrode 3 and to bring the current-carrying surface 26 and the side surface of the electrode 3 into contact with each other in a state where the contact resistance is low in order to energize in the held state. The purpose of surrounding the electrodes is to allow the electrodes 3 to be pressed against the current-carrying surface 26 in a stable state, that is, in a state where they are prevented from escaping to the side, and for that purpose a U-shape. Is formed. The pulling tool 18 has a water cooling structure,
Indicates a passage for cooling water. Reference numeral 31 denotes a pocket portion of the pulling tool 18, which is a portion for holding the electrode 3 for pulling the electrode 3. The pulling tool 18 will be further described. Reference numeral 32 denotes an attractive force transmitting portion, which is a portion for applying a force for attracting the electrode 3 when attracting the electrode 3 toward the current-carrying surface 26. When sandwiching, it is a part for applying force for sandwiching. The transmission unit 32
Is formed in a curved surface corresponding to the shape of the side surface of the electrode 3 in order to prevent lateral displacement of the electrode. 33 is a clamp member provided on the inner surface side of the transmission portion 32,
33a is a rough surface to prevent the electrode 3 from slipping. Then 3
Reference numerals 5 and 35 denote connecting members for connecting the pulling tool 18 and the operating means 22 arranged on the opposite sides of each other with the energizing block 16 in between, and energizing to avoid the energizing block and perform the connection. It is located beside the block 16. The connecting member 35 is integrally connected to the end portions 34 on both sides of the pulling tool 18, and has a through hole for connecting with the connecting rod 20.
【００１５】連結杆20は上記両側の連結部材35を操作手
段22に連結する為のものである。該連結杆20は、通電ブ
ロック16の支腕側に配設されている操作手段22への連結
の為に上記通電ブロックの支腕側において上記中空部10
に配置している。該連結杆20と上記引寄具18との連結は
上記連結部材35を介して行っている。例えば連結杆20の
両端部を夫々上記透孔36に嵌合させ、連結杆20の両端に
抜け止め部材37，37をボルト38及びナット39でもって止
付けて連結杆20に連結部材35を連結することにより、そ
の連結部材35を介して連結部材20と引寄具18とが連結さ
れるようにしている。連結杆20は、該連結杆20を介して
上記保持具19による引寄具18の保持が行われるようにす
る為に、即ち、引寄具18を通電面26に対向する状態に保
持することが行われるようにする為に、断面形状を図３
に示す如き矩形に形成している。The connecting rod 20 is for connecting the connecting members 35 on both sides to the operating means 22. The connecting rod 20 is connected to the operating means 22 disposed on the supporting arm side of the energizing block 16 so that the hollow portion 10 is formed on the supporting arm side of the energizing block.
Has been placed. The connecting rod 20 and the pulling tool 18 are connected via the connecting member 35. For example, both ends of the connecting rod 20 are fitted into the through holes 36, respectively, and retaining members 37, 37 are fixed to both ends of the connecting rod 20 with bolts 38 and nuts 39 to connect the connecting member 35 to the connecting rod 20. By doing so, the connecting member 20 and the pulling tool 18 are connected via the connecting member 35. The connecting rod 20 holds the pulling tool 18 so that the holding tool 19 holds the pulling tool 18 via the connecting rod 20, that is, the pulling tool 18 is held in a state of facing the current-carrying surface 26. The cross-sectional shape is shown in FIG.
It is formed in a rectangle as shown in.
【００１６】保持具19は上記引寄具18を通電ブロック16
に付設した状態に保持する為の部材であり、上記連結杆
20を保持することによりその連結杆20に連結された上記
引寄具18が通電ブロック16に対する付設状態に保持され
るようにした例を示す。41はガイド孔で、高さH1は連結
杆20が傾かぬよう連結杆20の高さに対応した高さにして
おり、長さL1は引寄具18による電極３の締付の為の連結
杆20の進退（図２、図３、図４における夫々左右方向）
を許容する長さにしている。42は通電ブロック16に対す
る取付の為の部分でフランジを例示し、ボルト43、ナッ
ト44でもって取付面27への取付を行うようにしている。
図５に詳細に示す45，46，47は通電ブロック16から操作
手段22や引寄具18等を通して電極３に電流が流れること
を阻止する為の絶縁材を示す。そのような電流の阻止の
目的は以下の通りである。通電ブロック16から保持具1
9、連結杆20、操作手段22等を介して引寄具18にまで至
る経路には機械的に摺動する部分が多く存在する。それ
らの摺動部分は電流が流れるとスパークを生じ易く、ス
パークが生ずるとそれらの部分を傷める。従って上記経
路に電流が流れることを阻止することにより上記摺動部
に電流が流れることを防止して、それらの損傷が防止さ
れるようにする為である。上記電流の阻止は、通電ブロ
ック16と保持具19との間の電気的絶縁を行うことによっ
て上記電流の流れを阻止するようにした例を示す。これ
らの絶縁材45〜47は炉２から放出される熱やダスト（炉
２において電極３が貫通している電極孔から放出され
る）から保護する為に、電極３に対して通電ブロック16
の陰になる取付面27の側に設けて、上記熱やダストが直
接的に絶縁材45〜47に及ぶことを通電ブロック16により
防止するようにしている。尚絶縁材45は板状であって取
付面27と保持具19における取付面27との対向面との間を
絶縁する。絶縁材46は板状であって保持具19のフランジ
42とボルト43の頭部との間を絶縁する。絶縁材47は筒状
であってボルト43の軸部とフランジ42におけるボルト貫
通用の透孔の内周面との間を絶縁する。A holding tool 19 connects the pulling tool 18 to the energizing block 16
Is a member for holding in a state attached to the
An example is shown in which by holding 20 the pulling tool 18 connected to the connecting rod 20 is held in an attached state to the energizing block 16. 41 is a guide hole, and the height H1 is a height corresponding to the height of the connecting rod 20 so that the connecting rod 20 does not incline, and the length L1 is a connection for tightening the electrode 3 by the pulling tool 18. Advancement / retraction of the rod 20 (left and right directions in FIGS. 2, 3 and 4 respectively)
The length is set to allow. Reference numeral 42 is a portion for attachment to the energization block 16, and a flange is shown as an example, and attachment to the attachment surface 27 is performed with bolts 43 and nuts 44.
Reference numerals 45, 46, and 47 shown in detail in FIG. 5 denote insulating materials for preventing a current from flowing from the energizing block 16 to the electrode 3 through the operating means 22, the pulling tool 18, and the like. The purpose of blocking such currents is as follows. Energizer block 16 to holder 1
9. There are many mechanically sliding parts in the path to the pulling tool 18 via the connecting rod 20, the operating means 22, and the like. The sliding parts are apt to generate sparks when an electric current flows, and the sparks damage the parts. Therefore, by preventing the electric current from flowing through the path, the electric current can be prevented from flowing through the sliding portion, and the damage thereof can be prevented. The blocking of the current shows an example in which the flow of the current is blocked by electrically insulating the energization block 16 and the holder 19. These insulating materials 45 to 47 protect the electrode 3 from the heat and dust emitted from the furnace 2 (emitted from the electrode hole through which the electrode 3 penetrates in the furnace 2).
The energization block 16 prevents the heat and dust from directly reaching the insulating materials 45 to 47 by being provided on the side of the mounting surface 27 that is in the shadow of. The insulating material 45 has a plate shape and insulates between the mounting surface 27 and a surface of the holder 19 facing the mounting surface 27. The insulating material 46 has a plate shape and is a flange of the holder 19.
Insulate between 42 and the head of bolt 43. The insulating material 47 is cylindrical and insulates the shaft portion of the bolt 43 from the inner peripheral surface of the through hole of the flange 42 through which the bolt penetrates.
【００１７】操作手段22は上記引寄具18を操作する為に
設けたものであり、電極３を締め付ける為の引寄具18の
引き操作と、電極３を弛める為の押し操作とを行い得る
ようにしている。上記操作手段22は、支腕５に対する通
電ブロック16の脱着によって該操作手段22も一緒に支腕
５に対して脱着されるようにする為に通電ブロック16に
固着している。又その固着は、該操作手段22を通して引
寄具18に電流が流れることを阻止する為に、絶縁材を介
して行っている。又該操作手段22は、支腕５に対する通
電ブロック16の取付により該操作手段22が支腕５の中空
部10に収容されるようにする為に、通電ブロック16の支
腕側に固着している。例えば50は操作手段22におけるベ
ースを示し、上記保持具19に取付けることにより通電ブ
ロック16の取付面27に上記絶縁材45〜47を介して固着し
ている。操作手段22の可動部は上記連結杆20に連結して
その連結杆20を進退操作させられるようにしている。例
えば51は上記ベース50の中心部に進退自在（図２、図
３、図４における左右方向）に挿通させた進退杆で、そ
の一端には操作力を連結杆20に及ぼす為の可動部として
例示する操作部材52を固着してあり、その操作部材52に
設けた嵌合孔53に連結杆20を嵌合させて、進退杆51の進
退により連結杆20を進退させられるようにしている。54
は上記進退杆51に引き力を及ぼす為の部材で、ばねを例
示し、ベース50と進退杆51に設けた段部55との間に介装
している。56は上記進退杆51に押し力を及ぼす為の部材
で、油圧シリンダを例示し、その本体は連結片57を介し
てベース50に連結し、進退作動するピストンは上記進退
杆51に連結している。The operating means 22 is provided for operating the pulling tool 18, and can perform pulling operation of the pulling tool 18 for tightening the electrode 3 and pushing operation for loosening the electrode 3. I am trying. The operation means 22 is fixed to the energization block 16 so that the operation means 22 can be detached from the support arm 5 together with the attachment / detachment of the energization block 16 to the support arm 5. Further, the fixing is performed through an insulating material in order to prevent a current from flowing through the pulling tool 18 through the operating means 22. The operating means 22 is fixed to the supporting arm side of the energizing block 16 so that the operating means 22 can be housed in the hollow portion 10 of the supporting arm 5 by mounting the energizing block 16 on the supporting arm 5. There is. For example, reference numeral 50 denotes a base of the operating means 22, which is fixed to the mounting surface 27 of the energizing block 16 via the insulating materials 45 to 47 by being mounted on the holder 19. The movable portion of the operating means 22 is connected to the connecting rod 20 so that the connecting rod 20 can be moved back and forth. For example, reference numeral 51 denotes an advancing / retreating rod which is inserted into the center of the base 50 so as to be able to advance / retreat (left and right in FIGS. 2, 3, and 4), and has a movable portion at one end for exerting an operating force on the connecting rod 20. The illustrated operating member 52 is fixed, and the connecting rod 20 is fitted into a fitting hole 53 provided in the operating member 52, so that the connecting rod 20 can be moved forward and backward by moving the forward and backward moving rod 51 forward and backward. 54
Is a member for exerting a pulling force on the advancing / retreating rod 51, and is exemplified by a spring, and is interposed between the base 50 and a step portion 55 provided on the advancing / retreating rod 51. 56 is a member for exerting a pushing force on the advancing / retreating rod 51, exemplifying a hydraulic cylinder, the main body is connected to the base 50 via a connecting piece 57, and the piston for advancing / retreating is connected to the advancing / retreating rod 51. There is.
【００１８】上記構成のものにおいて電極支持装置４に
よる電極の支持は次の通りである。操作手段22における
ばね54により進退杆51は常時矢印61方向の力を受けてい
る。この力は操作部材52から連結杆20を通して引寄具18
に加わり、引寄具18は通電面26に向けて引かれている。
その力により、引寄具18の懐部31に位置する電極３は通
電面26に締付られている。In the above structure, the electrode support device 4 supports the electrodes as follows. The advancing / retreating rod 51 always receives a force in the direction of arrow 61 by the spring 54 in the operating means 22. This force is applied from the operating member 52 through the connecting rod 20 to the pulling tool 18
In addition, the pulling tool 18 is pulled toward the current-carrying surface 26.
Due to the force, the electrode 3 located in the pocket 31 of the pulling tool 18 is fastened to the conducting surface 26.
【００１９】上記電極３の支持状態において、例えば支
腕５を通して供給されてくるアーク発生用の電流は、接
続面12，25を通して通電ブロック16に至り、通電ブロッ
ク16内を通って通電面26から電極３に流れる。In the supported state of the electrode 3, for example, an arc generating current supplied through the support arm 5 reaches the energization block 16 through the connection surfaces 12 and 25, and passes through the energization block 16 to the energization surface 26. It flows to the electrode 3.
【００２０】上記通電の場合、通電ブロック16と保持具
19との間は絶縁材45〜47で電気的に絶縁されているの
で、電流は上記経路のみで流れ、保持具19、操作手段2
2、連結杆20、引寄具18を経由して分流の電流が流れる
ことはない。従ってそれらの部材相互の摺動部において
分流の電流によるスパークが生じたりすることはなく、
それに伴う損傷の発生は無い。In the case of the above energization, the energization block 16 and the holder
Since it is electrically insulated from each other by the insulating materials 45 to 47, the current flows only through the above path, and the holder 19, the operating means 2
2. No shunt current flows through the connecting rod 20 and the pulling tool 18. Therefore, sparks due to shunt current will not occur in the sliding parts of these members,
There is no damage caused by it.
【００２１】上記電極支持装置４による電極３の支持の
解放は次の通りである。操作手段22におけるシリンダ56
を作動させて進退杆51を矢印61とは反対方向に移動させ
る。するとその動きは操作部材52から連結杆20を介して
引寄具18に伝わり、引寄具18は通電面26から離れる方向
に移動する。これにより電極３の把持を解放できる。上
記のような電極３の解放は例えば電極３の上下位置の変
更の場合に行う。その場合の操作は、電極３をクレーン
などで吊った状態で行い、上記のようにして電極３の把
持を解放したならば、クレーンの操作により電極３の上
下位置を適正な位置まで変更し、そこで再び引寄具18に
より電極３を締め付ける。The release of the support of the electrode 3 by the electrode support device 4 is as follows. Cylinder 56 in the operating means 22
Is operated to move the advancing / retreating rod 51 in the direction opposite to the arrow 61. Then, the movement is transmitted from the operating member 52 to the pulling tool 18 via the connecting rod 20, and the pulling tool 18 moves in a direction away from the current-carrying surface 26. Thereby, the grip of the electrode 3 can be released. The release of the electrode 3 as described above is performed, for example, when the vertical position of the electrode 3 is changed. In that case, the operation is performed in a state where the electrode 3 is hung by a crane, and if the grip of the electrode 3 is released as described above, the vertical position of the electrode 3 is changed to an appropriate position by operating the crane, Then, the pulling tool 18 again tightens the electrode 3.
【００２２】通電部材16或いは引寄具18等の損傷或いは
破損の場合における電極クランプ６の取り替えは次の通
りである。電極３を除去した状態において、フランジ11
とフランジ24を連結しているボルトナットを弛め、両フ
ランジ11，24の連結を切り離す。次に支腕５から通電ブ
ロック16を離反させると、図４に示す如く引寄具18や操
作手段22等は通電ブロック16に付属したままの状態で支
腕５から分離される。尚この作業に先立って引寄具18へ
の冷却水配管や操作手段22のシリンダ56への油圧配管等
を取り外しておくべきことは言うまでも無い。次に予め
通電ブロック16に対して、引寄具18、操作手段22等がア
センブリーされた取り替え用の電極クランプ６を上記と
は反対の操作でもって支腕５に取付け、所定の油圧配管
及び冷却水配管を行うことによって、電極クランプ６の
取り替え作業が完了する。尚上記電極クランプ６の取り
外し及び装着の操作は、作業の容易化及び安全の為に、
電極クランプ６を例えばクレーンでもって保持した状態
で行うと良い。上記のような取り替え作業の場合、支腕
５に対する脱着の作業は通電ブロック16の一つで良いの
で作業工数は少なく従って上記取り替えを極めて迅速に
行うことを可能に出来る。The replacement of the electrode clamp 6 in the case where the energizing member 16 or the pulling tool 18 is damaged or broken is as follows. With the electrode 3 removed, the flange 11
Loosen the bolt and nut connecting the flanges 24 and 24 to disconnect the flanges 11 and 24. Next, when the energizing block 16 is separated from the supporting arm 5, the pulling tool 18, the operating means 22 and the like are separated from the supporting arm 5 while being attached to the energizing block 16 as shown in FIG. Needless to say, the cooling water pipe to the pulling tool 18, the hydraulic pipe to the cylinder 56 of the operating means 22 and the like should be removed prior to this work. Next, the replacement electrode clamp 6 in which the pulling tool 18, the operating means 22 and the like are assembled to the energizing block 16 in advance is attached to the support arm 5 by the operation opposite to the above, and a predetermined hydraulic pipe and cooling are performed. The replacement work of the electrode clamp 6 is completed by performing the water piping. The operation of removing and mounting the electrode clamp 6 is performed for the sake of easy work and safety.
It may be carried out while the electrode clamp 6 is held by, for example, a crane. In the case of the replacement work as described above, the work for attaching and detaching the support arm 5 may be performed by one of the energizing blocks 16, so that the number of man-hours required is small, and therefore the replacement can be performed extremely quickly.
【００２３】[0023]
【発明の効果】以上のように本願発明にあっては、電極
３を支持する場合、操作手段22による引寄具18の操作に
より電極３を弛めた状態でその電極３を所望の位置まで
上下させ、そこで引寄具18により電極３を通電ブロック
16に締め付けることにより電極３をその所望位置で支持
できる特長がある。しかも上記のように電極３の締め弛
め操作が出来るようにしたものであっても、通電ブロッ
ク16をベースとしてそれに引寄具18や操作手段22が付さ
れた構成となっているので、通電ブロック16や引寄具18
の損傷に伴ってそれを取り替える場合、支腕５に対して
通電ブロック16を脱着するだけで取り替えを行うことが
出来る特長がある。このことは、取り替え作業を極めて
迅速に行い得ることであって、取り替え作業に伴う炉の
休止期間を短く出来て、炉の生産性の向上を図り得る効
果がある。更に上記の如く通電ブロック16を支腕５に対
して着脱自在にし、その通電ブロック16に引寄具18や操
作手段22を付した構成なので、上記取り替えの場合に
は、前記従来技術の如き支腕といった余分なものは取り
替えの対象とならず、従って、前記従来技術のような重
量や嵩張りに関しての難儀を覚えることなく取り替え作
業を容易に行え、又、取り替えに伴う無駄を少なく出来
る効果がある。As described above, according to the present invention, when the electrode 3 is supported, the electrode 3 is loosened by operating the pulling tool 18 by the operating means 22 to bring the electrode 3 to a desired position. It is moved up and down, and the attracting tool 18 is used to block the electrode 3 for energization.
It has the feature that the electrode 3 can be supported at its desired position by tightening it to 16. Moreover, even if the operation for tightening and loosening the electrode 3 is performed as described above, since the energizing block 16 is used as a base and the pulling tool 18 and the operating means 22 are attached to it, the energizing is performed. Block 16 and puller 18
In the case of replacing it due to the damage of No. 1, there is a feature that the replacement can be performed only by detaching the energization block 16 from the supporting arm 5. This means that the replacement work can be performed extremely quickly, and the downtime of the furnace associated with the replacement work can be shortened, and the productivity of the furnace can be improved. Further, since the energizing block 16 is detachably attached to the supporting arm 5 and the energizing block 18 and the operating means 22 are attached to the energizing block 16 as described above, in the case of the above replacement, the energizing block as in the prior art is used. Excessive items such as arms are not subject to replacement, and therefore, the replacement work can be easily performed without the difficulty of weight and bulkiness as in the above-described conventional technique, and the waste associated with the replacement can be reduced. is there.
【図１】電極支持装置の平面図。FIG. 1 is a plan view of an electrode supporting device.
【図２】電極支持装置の要部を示す横断面図。FIG. 2 is a cross-sectional view showing a main part of an electrode supporting device.
【図３】電極支持装置の要部を示す縦断面図。FIG. 3 is a vertical cross-sectional view showing a main part of an electrode supporting device.
【図４】支腕から電極クランプを取り外した状態を示す
一部破断側面図。FIG. 4 is a partially cutaway side view showing a state in which an electrode clamp is removed from a supporting arm.
【図５】図４におけるＶ−Ｖ線拡大断面図。5 is an enlarged cross-sectional view taken along line VV in FIG.
５ 支腕 16 通電ブロック 18 引寄具 20 連結杆 22 操作手段 26 通電面 5 Support arm 16 Energizing block 18 Pulling tool 20 Connecting rod 22 Operating means 26 Energizing surface
Claims (2)
先端に着脱自在に取り付けられ、かつ、反支腕側には電
極を添え付けてその電極に対して通電する為の通電面を
備えている通電ブロックと、上記通電面に添え付ける電
極を囲んでその電極を上記通電面に向けて引き寄せる為
のＵ字状形成の引寄具と、上記引寄具を操作する為の操
作手段とを備える電極支持装置において、上記通電ブロ
ックの支腕側においては上記中空部に連結杆を進退自在
に配置し、上記引寄具の両端部は通電ブロックの側方に
配置する連結部材を介して上記連結杆に連結して、該連
結杆の進退により、上記引寄具の懐部に位置させる電極
を上記通電面に締付できるようにし、上記操作手段は上
記中空部に配置しかつ通電ブロックの支腕側に固着し、
操作手段の可動部は上記連結杆に連結して、操作手段の
操作により連結杆を進退操作させて通電ブロックの通電
面に添う電極を締め弛め出来るようにしたことを特徴と
する電極支持装置。1. A support arm having a hollow portion at its tip, and an energization for detachably attaching to the tip of the support arm and attaching an electrode to the anti-support arm side to energize the electrode. A current-carrying block having a surface, a U-shaped puller for enclosing an electrode attached to the current-carrying surface to draw the electrode toward the current-carrying surface, and a handle for operating the attractor. In the electrode supporting device provided with an operating means, a connecting rod is arranged in the hollow portion on the supporting arm side of the energizing block so as to be able to move forward and backward, and both ends of the pulling tool are arranged laterally of the energizing block. The connecting rod is connected to the connecting rod via the connecting rod, and the advancing / retreating of the connecting rod allows the electrode positioned in the pocket of the pulling tool to be fastened to the current-carrying surface, and the operating means is arranged in the hollow portion. Moreover, it is fixed to the supporting arm side of the energizing block,
The movable part of the operating means is connected to the connecting rod, and the operating means operates the connecting rod to move back and forth to tighten and loosen the electrodes along the current-carrying surface of the current-carrying block. .
操作手段の固着は絶縁材を介して行って、通電ブロック
から操作手段及び引寄具を通して電極に電流が流れるこ
とを阻止するようにしたことを特徴とする請求項１記載
の電極支持具。2. The operation means is fixed to the supporting arm side of the energization block via an insulating material so as to prevent a current from flowing from the energization block to the electrode through the operation means and the pulling tool. The electrode support according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9352896A JPH09260052A (en) | 1996-03-22 | 1996-03-22 | Electrode support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9352896A JPH09260052A (en) | 1996-03-22 | 1996-03-22 | Electrode support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09260052A true JPH09260052A (en) | 1997-10-03 |
Family
ID=14084818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9352896A Pending JPH09260052A (en) | 1996-03-22 | 1996-03-22 | Electrode support device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09260052A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002115973A (en) * | 2000-10-05 | 2002-04-19 | Mitsubishi Material Quartz Kk | Carbon electrode for arc melting, and its retaining device |
| JP2013521625A (en) * | 2010-03-10 | 2013-06-10 | エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト | Electrode carrying arm system |
| CN106197036A (en) * | 2016-08-15 | 2016-12-07 | 永兴县億翔环保科技有限公司 | Vacuum smelting furnace heating graphite electrode connection device |
-
1996
- 1996-03-22 JP JP9352896A patent/JPH09260052A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002115973A (en) * | 2000-10-05 | 2002-04-19 | Mitsubishi Material Quartz Kk | Carbon electrode for arc melting, and its retaining device |
| JP2013521625A (en) * | 2010-03-10 | 2013-06-10 | エス・エム・エス・ジーマーク・アクチエンゲゼルシャフト | Electrode carrying arm system |
| CN106197036A (en) * | 2016-08-15 | 2016-12-07 | 永兴县億翔环保科技有限公司 | Vacuum smelting furnace heating graphite electrode connection device |
| CN106197036B (en) * | 2016-08-15 | 2018-06-15 | 永兴县億翔环保科技有限公司 | Vacuum smelting furnace heating graphite electrode connection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Effective date: 20050419 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
| A02 | Decision of refusal |
Effective date: 20050823 Free format text: JAPANESE INTERMEDIATE CODE: A02 |