JPH08215839A - Welding method of container inner peripheral face and equipment therefor - Google Patents
Welding method of container inner peripheral face and equipment thereforInfo
- Publication number
- JPH08215839A JPH08215839A JP2174895A JP2174895A JPH08215839A JP H08215839 A JPH08215839 A JP H08215839A JP 2174895 A JP2174895 A JP 2174895A JP 2174895 A JP2174895 A JP 2174895A JP H08215839 A JPH08215839 A JP H08215839A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- container
- inner peripheral
- main body
- shaft member
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、容器内周面の溶接方法
及び装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding method and apparatus for the inner peripheral surface of a container.
【０００２】[0002]
【従来の技術】図３は、ボイラ等に配設される大型の圧
力容器１の概略を示すものであり、該圧力容器１は、厚
肉で筒状の胴部２，２’及び略半円球の鏡部３，３’か
らなり、該胴部２，２’及び鏡部３，３’の溶接箇所４
ａ，４ｂ，４ｃの溶接は、肉厚が大きいため内側と外側
の両側から溶接する必要がある。なお、図中、３ａは蒸
気管接続口を示す。2. Description of the Related Art FIG. 3 schematically shows a large-sized pressure vessel 1 installed in a boiler or the like. The pressure vessel 1 has a thick, tubular body portion 2, 2'and a substantially semi-cylindrical portion. It is composed of round mirror parts 3 and 3 ', and the welding part 4 of the body parts 2 and 2'and the mirror parts 3 and 3'
Since welding of a, 4b, and 4c has a large wall thickness, it is necessary to weld from both inside and outside. In the figure, 3a indicates a steam pipe connection port.
【０００３】前記した圧力容器１の胴部２，２’は、図
４に示すように厚肉の胴板２ａと、多数の蒸気管を接続
するための開口２ｃを開けることによる強度低下を防止
するために更に肉厚を大きくした管板２ｂを有してい
る。As shown in FIG. 4, the body portions 2 and 2'of the pressure vessel 1 described above prevent a decrease in strength caused by opening a thick body plate 2a and an opening 2c for connecting a large number of steam pipes. In order to achieve this, it has a tube sheet 2b having a further increased wall thickness.
【０００４】上記した圧力容器１を形成する際には、先
ず、図４、図５に示すように回転駆動装置５を接続した
ターニングローラ６を配置し、該ターニングローラ６上
に図５に示すごとく仮付けを行なった前記胴部２及び一
方の鏡部３を配置して、該胴部２及び鏡部３の溶接箇所
４ａの直上に溶接装置７を配設する。When forming the above-mentioned pressure vessel 1, first, as shown in FIGS. 4 and 5, a turning roller 6 to which a rotation drive device 5 is connected is arranged, and the turning roller 6 is shown in FIG. The body portion 2 and the one mirror portion 3 temporarily attached as described above are arranged, and the welding device 7 is arranged immediately above the welding portion 4a of the body portion 2 and the mirror portion 3.
【０００５】次に、ターニングローラ６を同一方向に一
定速度で回転させることにより前記胴部２及び鏡部３を
一定速度で回転させ、同時に溶接装置７によるサブマー
ジアーク溶接により常に下向きで溶接箇所４ａを全周に
亘り溶接するようにしている。溶接装置７は常に下向き
の状態で溶接を行なうので、良好な溶接を行なうことが
できる。Next, the body 2 and the mirror 3 are rotated at a constant speed by rotating the turning roller 6 in the same direction at a constant speed, and at the same time, by the submerged arc welding by the welding device 7, the welding portion 4a is always directed downward. Is welded over the entire circumference. Since the welding device 7 always performs welding in a downward direction, good welding can be performed.
【０００６】又、溶接箇所４ａ内周を溶接する場合に
は、圧力容器１の胴部２は開放された状態であるため、
図４、図５に示すごとく先端に溶接トーチ８ａを備えた
アーム８ｂと、該アーム８ｂを水平に且つ上下に位置調
節可能に支持する支持部材８ｃとからなる大型のマニプ
レータ８を、前記溶接トーチ８ａが溶接箇所４ａに位置
するよう容器外部に設置し、ターニングローラ６にて胴
部２及び鏡部３を回転させながら前記溶接箇所４ａ内周
を全周に亘りサブマージアーク溶接により溶接を行なう
ようにしている。When welding the inner circumference of the welded portion 4a, the body portion 2 of the pressure vessel 1 is in an open state.
As shown in FIGS. 4 and 5, a large manipulator 8 comprising an arm 8b having a welding torch 8a at its tip and a supporting member 8c for horizontally and vertically adjusting the position of the arm 8b is used as the welding torch. 8a is installed outside the container so that it is located at the welding point 4a, and while the body 2 and the mirror section 3 are rotated by the turning roller 6, welding is performed by submerged arc welding over the entire inner circumference of the welding point 4a. I have to.
【０００７】更に、図６に示すように、仮付けされた胴
部２，２’の溶接箇所４ｂの外周を溶接する際には、前
記した溶接装置７により全周に亘り溶接すると共に、内
周を溶接する際には、前記したマニプレータ８の溶接ト
ーチ８ａを溶接箇所４ｂに合わせて、全周に亘り溶接す
るようにしている。Further, as shown in FIG. 6, when welding the outer periphery of the welded portion 4b of the temporarily attached body 2, 2 ', the welding is performed over the entire periphery by the above-mentioned welding device 7 and When welding the circumference, the welding torch 8a of the manipulator 8 is aligned with the welding location 4b, and the entire circumference is welded.
【０００８】又、胴部２’と他方の鏡部３’の最後の溶
接箇所４ｃの溶接においては、外周は図７に示すように
前記した溶接装置７によって溶接を行なうが、前記した
大型のマニプレータ８は、蒸気管接続口３ａから胴部
２，２’及び鏡部３，３’内に搬入することができない
ために、前記溶接箇所４ｃの内周の溶接は、作業員が蒸
気管接続口３ａから圧力容器１内に入り込んで手溶接に
より溶接するようにしている。Further, in the welding of the last welding portion 4c of the body portion 2'and the other mirror portion 3 ', the outer periphery is welded by the welding device 7 as shown in FIG. Since the manipulator 8 cannot be carried in from the steam pipe connection port 3a into the body parts 2, 2'and the mirror parts 3, 3 ', the welding of the inner circumference of the welding portion 4c is performed by an operator. It enters into the pressure vessel 1 through the mouth 3a and is welded by manual welding.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、従来の
マニプレータ８は、アーム８ｂを胴部２，２’内に導入
する方式であるため、圧力容器１が図７に示すように閉
塞された状態であると、前記アーム８ｂを胴部２，２’
内に導入できず、従って、この場合には、圧力容器１内
での手溶接による作業が余儀なくされるが、手溶接の場
合には、作業員が直接手作業で溶接を行なうために、安
全面上、低電流で溶接を行なう必要があり、低電流での
溶接は溶接速度が非常に遅く、よって、作業に時間がか
かり、作業能率が低いと共に、閉ざされた空間での作業
となるため作業環境が非常に悪いという問題があった。However, since the conventional manipulator 8 is of a type in which the arm 8b is introduced into the body portions 2 and 2 ', the pressure vessel 1 is closed as shown in FIG. If so, the arm 8b is attached to the body 2, 2 '.
Therefore, in this case, the work by manual welding in the pressure vessel 1 is inevitable, but in the case of manual welding, the worker directly performs the welding by hand, so that it is safe. On the surface, it is necessary to perform welding with a low current, and welding with a low current has a very low welding speed, so it takes time to perform the work, the work efficiency is low, and the work is performed in a closed space. There was a problem that the work environment was very bad.
【００１０】本発明は、上述の実情に鑑み、種々の容器
の内周面の溶接を常に下向きの良好な姿勢で能率的に行
なうことができる容器内周面の溶接方法及び装置を提供
することを目的としてなしたものである。In view of the above-mentioned circumstances, the present invention provides a method and apparatus for welding the inner peripheral surface of a container, which can efficiently perform the welding of the inner peripheral surface of various containers always in a downward and good posture. It was made for the purpose.
【００１１】[0011]
【課題を解決するための手段】本発明の容器内周面の溶
接方法は、内周面の溶接を行なう容器をターニングロー
ラにより回転可能に支持し、前記容器内に該容器と略同
心に円形レールを設けると共に、該円形レールに沿って
走行可能な溶接機本体を設け、前記ターニングローラを
回転させて前記容器及び円形レールを一定速度で一方向
に回転させると共に前記溶接機本体を円形レールに沿っ
て他方向に同一速度で走行させることにより、容器内周
面の溶接箇所に対して常に下向きで溶接を行なうもので
ある。According to the method for welding an inner peripheral surface of a container of the present invention, a container for welding the inner peripheral surface is rotatably supported by a turning roller, and is circular in the container substantially concentric with the container. A rail is provided, and a welding machine main body that can run along the circular rail is provided, and the turning roller is rotated to rotate the container and the circular rail in one direction at a constant speed, and the welding machine main body is changed to the circular rail. By traveling at the same speed in the other direction along the welding direction, welding is always performed downward with respect to the welding location on the inner peripheral surface of the container.
【００１２】又、本発明の容器内周面の溶接装置は、容
器を回転可能に支持するターニングローラと、前記容器
内に該容器と略同心に複数の支持脚にて支持された軸部
材と、該軸部材に軸部材に対して同心に配設された円形
レールと、該円形レールに走行ローラを介して支持され
た溶接機本体と、前記走行ローラを駆動する走行駆動装
置とを備えたものである。Further, the welding device for the inner peripheral surface of the container of the present invention comprises a turning roller for rotatably supporting the container, and a shaft member supported in the container by a plurality of supporting legs substantially concentric with the container. A circular rail disposed concentrically with respect to the shaft member, a welding machine main body supported by the circular rail via a traveling roller, and a traveling drive device for driving the traveling roller. It is a thing.
【００１３】[0013]
【作用】本発明において、容器内周面を溶接する際に
は、回転可能なターニングローラ上に容器を載置し、該
容器内に、軸部材に取付けた円形レールが容器と略同心
で且つ前記容器内周面の溶接箇所上に位置するよう、複
数の支持脚により前記軸部材を支持する。さらに、円形
レールに溶接機本体を走行ローラを介して下向きに支持
させる。In the present invention, when welding the inner peripheral surface of the container, the container is placed on a rotatable turning roller, and the circular rail attached to the shaft member is substantially concentric with the container in the container. The shaft member is supported by a plurality of support legs so as to be located on the welded portion on the inner peripheral surface of the container. Further, the welding machine main body is supported downward on the circular rail via the traveling roller.
【００１４】溶接時においては、ターニングローラを回
転させて該ターニングローラ上の容器を一方向に回転さ
せ、該容器内に固定した円形レールを前記容器と一緒に
同一方向に一定速度で回転させる。During welding, the turning roller is rotated to rotate the container on the turning roller in one direction, and the circular rail fixed in the container is rotated together with the container in the same direction at a constant speed.
【００１５】更に、上記した円形レールの回転に合わせ
て、走行ローラの走行駆動装置を駆動させることにより
前記円形レールの回転と逆方向に同一速度で溶接機本体
を前記円形レールに沿って走行させ、容器内周面の溶接
箇所に対して溶接機本体が常に下向きに保持されるよう
にして前記容器内周面の溶接箇所を下向きで連続して溶
接する。Further, in accordance with the rotation of the circular rail, the traveling drive device for the traveling roller is driven to cause the welding machine main body to travel along the circular rail at the same speed in the direction opposite to the rotation of the circular rail. The welding portion on the inner peripheral surface of the container is continuously welded downward so that the main body of the welding machine is always held downward with respect to the welding portion on the inner peripheral surface of the container.
【００１６】[0016]
【実施例】以下本発明の実施例を図面を参照しつつ説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１７】図１及び図２は、本発明の容器内周面の溶
接方法及び装置の一実施例を示したものであり、図３〜
図７に示すものと同様のものには同じ符号を付して詳細
な説明は省略する。1 and 2 show an embodiment of a welding method and apparatus for the inner peripheral surface of a container according to the present invention.
The same parts as those shown in FIG. 7 are designated by the same reference numerals, and detailed description thereof will be omitted.
【００１８】本実施例では、平行配置し且つ回転駆動装
置５を接続したターニングローラ６上に大型の圧力容器
１を構成する胴部２，２’及び鏡部３，３’を仮付した
状態で載置して（図７参照）、所定の速度で回転させる
ことができるようになっている。In the present embodiment, the body 2, 2'and the mirror 3, 3'constituting the large pressure vessel 1 are temporarily attached on the turning roller 6 which is arranged in parallel and to which the rotary drive unit 5 is connected. It can be placed at (see FIG. 7) and rotated at a predetermined speed.
【００１９】更に、前記した胴部２，２’及び鏡部３，
３’内に、図１、図２に示すように軸部材９を胴部２，
２’及び鏡部３，３’と略同心に且つ一端が胴部２，
２’と鏡部３，３’の溶接箇所４ａ（４ｂ，４ｃ）の直
上に位置するよう複数の支持脚１０（図１、図２では３
本）により支持してあり、該支持脚１０は伸縮自在で且
つ前記軸部材９に対して取外し可能となっている。Further, the above-mentioned body portions 2, 2'and the mirror portion 3,
As shown in FIG. 1 and FIG.
2'and the mirrors 3, 3'are substantially concentric with one end of the body 2,
The plurality of support legs 10 (3 in FIG. 1 and FIG. 2 are positioned so as to be located directly above the welded portion 4a (4b, 4c) of the 2'and the mirror portions 3, 3 '.
The present invention is supported by a book), and the support leg 10 is extendable and retractable and detachable from the shaft member 9.
【００２０】更に、軸部材９の一端に、該軸部材９に対
して同心に円形レール１１を配設すると共に、前記軸部
材９の他端にバランサー１２が設けてあり、前記円形レ
ール１１は、複数に分割可能な構造（図１、図２では３
分割）となっている。Further, a circular rail 11 is concentrically arranged with respect to the shaft member 9 at one end of the shaft member 9, and a balancer 12 is provided at the other end of the shaft member 9. , A structure that can be divided into a plurality of parts (3 in FIG. 1 and FIG. 2)
It is divided).
【００２１】また更に、円形レール１１の内周面１１ａ
に走行ローラ１３ａ，１３ｂを当接させ、該走行ローラ
１３ａ，１３ｂを収容するようブラケット１４を配設
し、該ブラケット１４の下端に溶接トーチ１５ａを備え
た溶接機本体１５を配設することにより、前記円形レー
ル１１に対して溶接機本体１５を下向きに支持してあ
る。また溶接機本体１５に、前記走行ローラ１３ａ，１
３ｂを伝達装置１７ａを介して回転させるための走行駆
動装置１７が配設してあると共に、円形レール１１の回
転に伴って溶接機本体１５の位置がずれることなく走行
ローラ１３ａ，１３ｂの回転が確実に円形レール１１に
伝えられるように、前記円形レール１１外周面の前記走
行ローラ１３ａ，１３ｂに対向する位置にばね２１で押
圧された押付けローラ１６ａ，１６ｂを配設している。Furthermore, the inner peripheral surface 11a of the circular rail 11 is
The traveling rollers 13a and 13b are brought into contact with each other, the bracket 14 is disposed so as to accommodate the traveling rollers 13a and 13b, and the welding machine main body 15 having the welding torch 15a is disposed at the lower end of the bracket 14. The welding machine body 15 is supported downward on the circular rail 11. In addition, the welding machine main body 15 is provided with the traveling rollers 13a, 1
A traveling drive device 17 for rotating 3b via a transmission device 17a is provided, and the traveling rollers 13a, 13b can be rotated without the position of the welding machine body 15 being displaced with the rotation of the circular rail 11. Pressing rollers 16a, 16b pressed by a spring 21 are arranged at positions on the outer peripheral surface of the circular rail 11 facing the traveling rollers 13a, 13b so as to be surely transmitted to the circular rail 11.
【００２２】又、溶接機本体１５には、溶接の際に使用
する溶接ワイヤ１８を送給するようになっており、該溶
接ワイヤ１８はワイヤ送給装置１９により送り込まれる
ようになっている。A welding wire 18 used for welding is fed to the welding machine main body 15, and the welding wire 18 is fed by a wire feeding device 19.
【００２３】更に、圧力容器１の胴板２ａと管板２ｂと
の肉厚の違いにより、溶接トーチ１５ａ先端と溶接箇所
４ａ（４ｂ，４ｃ）の内周面との間の距離が変化し、溶
接箇所４ａ（４ｂ，４ｃ）に対する入熱量が変化するた
め、距離が変化してもアーク電圧が一定となるよう自動
補正する自動補正装置２０（アークボルテージコントロ
ーラ）を設けてある。Further, the distance between the tip of the welding torch 15a and the inner peripheral surface of the welding portion 4a (4b, 4c) changes due to the difference in wall thickness between the body plate 2a and the tube plate 2b of the pressure vessel 1, Since the amount of heat input to the welding points 4a (4b, 4c) changes, an automatic correction device 20 (arc voltage controller) that automatically corrects the arc voltage so as to be constant even if the distance changes is provided.
【００２４】次に、本実施例の作用について説明する。Next, the operation of this embodiment will be described.
【００２５】図５に示すように、胴部２と鏡部３を仮付
した圧力容器１、或いは、溶接箇所４ａの外周を溶接装
置７で溶接して組立てられた圧力容器１の溶接箇所４ａ
内周を溶接する際には、前記圧力容器１内に、作業員に
より軸部材９を前記圧力容器１と略同心で且つ一端が溶
接箇所４ａの直上に位置するよう、前記軸部材９に取付
けた複数の支持脚１０の長さを調整して配設する。As shown in FIG. 5, the pressure vessel 1 to which the body portion 2 and the mirror portion 3 are temporarily attached, or the welding location 4a of the pressure vessel 1 assembled by welding the outer periphery of the welding location 4a with the welding device 7.
When welding the inner circumference, a shaft member 9 is attached to the shaft member 9 in the pressure container 1 by an operator so that the shaft member 9 is substantially concentric with the pressure container 1 and one end thereof is located immediately above the welding location 4a. The lengths of the plurality of support legs 10 are adjusted and arranged.
【００２６】更に、前記した軸部材９の一端に、円形レ
ール１１を該軸部材９に対して同心に配設すると共に、
前記円形レール１１に走行ローラ１３ａ，１３ｂを介し
て溶接機本体１５を下向きに支持させる。Further, a circular rail 11 is arranged at one end of the shaft member 9 concentrically with respect to the shaft member 9, and
The welding machine main body 15 is supported downward on the circular rail 11 via traveling rollers 13a and 13b.
【００２７】次に、ターニングローラ６に接続された回
転駆動装置５を駆動させて前記ターニングローラ６を回
転させ、この回転により前記ターニングローラ６上に載
置した圧力容器１を一定速度で回転させる。すると、圧
力容器１内の軸部材９及び円形レール１１も一緒に同一
速度で回転することになる。Next, the rotation driving device 5 connected to the turning roller 6 is driven to rotate the turning roller 6, and this rotation causes the pressure vessel 1 placed on the turning roller 6 to rotate at a constant speed. . Then, the shaft member 9 and the circular rail 11 in the pressure vessel 1 also rotate at the same speed.
【００２８】この円形レール１１の回転に合わせて、遠
隔操作によって溶接機本体１５に配設した走行ローラ１
３ａ，１３ｂの走行駆動装置１７を駆動し、前記溶接機
本体１５を円形レール１１に沿って、該円形レール１１
の回転方向と逆方向に同一速度で走行させる。Along with the rotation of the circular rail 11, the traveling roller 1 disposed on the main body 15 of the welding machine by remote control.
3a, 13b drive the driving device 17, the welding machine body 15 along the circular rail 11, the circular rail 11
Run at the same speed in the opposite direction to the rotation direction.
【００２９】これにより、溶接機本体１５を常に下向き
に支持させた状態に保持することができ、よって、圧力
容器１の溶接箇所４ａ内周の溶接を常に下向きで連続し
て行なうことができる。又、この際、圧力容器１の溶接
箇所４ａ内周の溶接をＣＯ2溶接、ＭＡＧ溶接等によっ
て行なうことができる。As a result, the welder main body 15 can be held in a state of being always supported downward, and therefore, the welding of the inner circumference of the welding portion 4a of the pressure vessel 1 can be continuously performed downward. At this time, the welding of the inner circumference of the welding portion 4a of the pressure vessel 1 can be performed by CO 2 welding, MAG welding or the like.
【００３０】又、図６に示す胴部２，２’の溶接箇所４
ｂを溶接する際には、該溶接箇所４ｂの外周を溶接装置
７により溶接すると共に、内周を、溶接箇所４ａと同様
にして全周に亘り溶接を行うようにする。Further, the welded portion 4 of the body portions 2 and 2'shown in FIG.
When welding b, the outer periphery of the welded portion 4b is welded by the welding device 7 and the inner periphery is welded over the entire periphery in the same manner as the welded portion 4a.
【００３１】更に、胴部２’と他方の鏡部３’の溶接箇
所４ｃの溶接においては、図７に示すごとく圧力容器１
は閉塞した状態であるため、溶接箇所４ｃの外周を溶接
装置７により溶接すると共に、溶接箇所４ｃの内周は、
鏡部３に設けた蒸気管接続口３ａから軸部材９と支持脚
１０とを夫々別々に搬入すると共に、円形レール１１も
分割した状態のまま搬入して圧力容器１内において組立
て、溶接箇所４ａ，４ｂと同様の方式で全周に亘り溶接
し、溶接作業終了後は、分解して圧力容器１の外部に取
り出すようにする。Further, in welding the welded portion 4c of the body portion 2'and the other mirror portion 3 ', as shown in FIG.
Is a closed state, the outer periphery of the welded portion 4c is welded by the welding device 7 and the inner periphery of the welded portion 4c is
The shaft member 9 and the support leg 10 are individually carried in from the steam pipe connection port 3a provided in the mirror portion 3, and the circular rail 11 is also carried in in a divided state to be assembled in the pressure vessel 1 and welded at the welding point 4a. , 4b are welded over the entire circumference in the same manner as described above, and after the welding work is completed, they are disassembled and taken out of the pressure vessel 1.
【００３２】溶接作業の際に、ワイヤ送給装置１９によ
り溶接ワイヤ１８を溶接機本体１５に送給しているが、
前記ワイヤ送給装置１９の送給方法は、ＰＵＳＨ−ＰＵ
ＬＬ方式とし、送給の際に溶接ワイヤ１８の詰まりが発
生しないようにしている。During the welding operation, the wire feeder 19 feeds the welding wire 18 to the main body 15 of the welding machine.
A feeding method of the wire feeding device 19 is PUSH-PU.
The LL system is adopted so that the welding wire 18 is not clogged during the feeding.
【００３３】また、自動補正装置２０を備えて溶接箇所
４ａ（４ｂ，４ｃ）に対するアーク電圧を常に略一定に
保持しているので、図１のように肉厚が変化して内周が
真円となっていない圧力容器１の場合にも溶接箇所４ａ
（４ｂ，４ｃ）全周に亘り均一な溶接を行なうことが可
能となる。Further, since the arc voltage to the welding points 4a (4b, 4c) is always kept substantially constant by providing the automatic correction device 20, the wall thickness changes and the inner circumference is a perfect circle as shown in FIG. In the case of the pressure vessel 1 which has not become
(4b, 4c) It becomes possible to perform uniform welding over the entire circumference.
【００３４】従って、本実施例においては、圧力容器１
の溶接箇所４ａ（４ｂ，４ｃ）内周に対して溶接を常に
下向きの良好な姿勢で自動的に連続して行なうことがで
きるため、作業能率が向上すると共に安定した効率の良
い溶接を行なうことができ、短期間で溶接作業を行なう
ことができる。Therefore, in this embodiment, the pressure vessel 1
Since the welding can be automatically and continuously continuously performed on the inner circumference of the welding portion 4a (4b, 4c) of 1. in a downward and good posture, work efficiency is improved and stable and efficient welding is performed. Therefore, welding work can be performed in a short period of time.
【００３５】又、軸部材９に対して支持脚１０が取外し
可能となっていると共に、円形レール１１が複数に分割
可能となっているため、狭い開口しか備えていない容器
においても容易に溶接装置を搬入、取出しを行なうこと
ができ、よって種々の容器の内面円周方向の溶接作業を
確実に効率良く行なうことができる。Since the support leg 10 can be removed from the shaft member 9 and the circular rail 11 can be divided into a plurality of pieces, the welding device can be easily used even in a container having only a narrow opening. Can be carried in and out, and therefore welding work in the circumferential direction of the inner surface of various containers can be reliably and efficiently performed.
【００３６】なお、本発明の実施例で説明した溶接装置
を複数の溶接個所に同時に配設して溶接を行なうように
しても良いこと、その他、本発明の要旨を逸脱しない範
囲内で種々変更を加え得ることは勿論である。The welding apparatus described in the embodiments of the present invention may be installed at a plurality of welding points at the same time to perform welding, and other various changes may be made without departing from the gist of the present invention. Of course, it is possible to add.
【００３７】[0037]
【発明の効果】本発明においては、容器内周面の溶接箇
所に対して溶接を常に下向きの良好な姿勢で自動的に連
続して行なうことができるため、作業能率が向上し、安
定した効率の良い溶接を行なうことができると共に作業
期間を短縮することができるという種々の優れた効果を
奏し得る。According to the present invention, since the welding can be automatically and continuously continuously performed in a good posture in the downward direction on the inner peripheral surface of the container, the work efficiency is improved and the stable efficiency is improved. It is possible to achieve various excellent effects that good welding can be performed and the working period can be shortened.
【図１】本発明の容器内周面の溶接装置の一実施例を示
す縦断正面図である。FIG. 1 is a vertical sectional front view showing an embodiment of a welding device for an inner peripheral surface of a container according to the present invention.
【図２】図１のＩＩ−ＩＩ方向矢視図である。FIG. 2 is a view taken along the line II-II in FIG.
【図３】ボイラ等に配設される圧力容器の概略例を示す
正面図である。FIG. 3 is a front view showing a schematic example of a pressure vessel arranged in a boiler or the like.
【図４】図３の圧力容器の外周面の溶接方法の序盤の段
階を示す側面図である。4 is a side view showing the initial stage of the welding method for the outer peripheral surface of the pressure vessel of FIG. 3. FIG.
【図５】図４のＶ−Ｖ方向矢視図である。FIG. 5 is a view in the direction of arrows VV in FIG. 4;
【図６】図３の圧力容器の内周面の溶接方法の中盤の段
階を示す正面図である。6 is a front view showing a middle stage of the welding method for the inner peripheral surface of the pressure vessel of FIG. 3. FIG.
【図７】図３の圧力容器の外周面の溶接方法の終盤の段
階を示す側面図である。7 is a side view showing the final stage of the welding method for the outer peripheral surface of the pressure vessel of FIG. 3. FIG.
１ 圧力容器（容器） ４ａ 溶接箇所 ４ｂ 溶接箇所 ４ｃ 溶接箇所 ６ ターニングローラ ９ 軸部材 １０ 支持脚 １１ 円形レール １３ａ 走行ローラ １３ｂ 走行ローラ １５ 溶接機本体 １７ 走行駆動装置 1 Pressure Vessel (Container) 4a Welding Point 4b Welding Point 4c Welding Point 6 Turning Roller 9 Shaft Member 10 Support Leg 11 Circular Rail 13a Traveling Roller 13b Traveling Roller 15 Welding Machine Main Body 17 Traveling Drive Device
Claims (2)
ローラにより回転可能に支持し、前記容器内に該容器と
略同心に円形レールを設けると共に、該円形レールに沿
って走行可能な溶接機本体を設け、前記ターニングロー
ラを回転させて前記容器及び円形レールを一定速度で一
方向に回転させると共に前記溶接機本体を円形レールに
沿って他方向に同一速度で走行させることにより、容器
内周面の溶接箇所に対して常に下向きで溶接を行なうこ
とを特徴とする容器内周面の溶接方法。1. A welding machine that rotatably supports a container for welding an inner peripheral surface thereof, a circular rail is provided in the container substantially concentrically with the container, and can travel along the circular rail. By providing a main body, rotating the turning roller in one direction at a constant speed to rotate the container and the circular rail, and at the same speed in the other direction along the circular rail, the welding machine main body runs at the inner circumference of the container. A welding method for an inner peripheral surface of a container, which is characterized in that welding is always performed downward on a welded portion of the surface.
ーラと、前記容器内に該容器と略同心に複数の支持脚に
て支持された軸部材と、該軸部材に軸部材に対して同心
に配設された円形レールと、該円形レールに走行ローラ
を介して支持された溶接機本体と、前記走行ローラを駆
動する走行駆動装置とを備えたことを特徴とする容器内
周面の溶接装置。2. A turning roller for rotatably supporting the container, a shaft member supported in the container by a plurality of supporting legs substantially concentric with the container, and the shaft member concentric with the shaft member. A welding device for an inner peripheral surface of a container, comprising: a circular rail provided; a welding machine main body supported by the circular rail via a traveling roller; and a traveling drive device for driving the traveling roller. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2174895A JPH08215839A (en) | 1995-02-09 | 1995-02-09 | Welding method of container inner peripheral face and equipment therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2174895A JPH08215839A (en) | 1995-02-09 | 1995-02-09 | Welding method of container inner peripheral face and equipment therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08215839A true JPH08215839A (en) | 1996-08-27 |
Family
ID=12063699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2174895A Pending JPH08215839A (en) | 1995-02-09 | 1995-02-09 | Welding method of container inner peripheral face and equipment therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08215839A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213706A (en) * | 2001-01-16 | 2002-07-31 | Ishikawajima Harima Heavy Ind Co Ltd | Boiler drum structure |
| WO2005051584A1 (en) * | 2003-11-25 | 2005-06-09 | Consani Engineering (Proprietary) Limited | Method and apparatus for manufacturing a thin-walled vessel by welding the parts |
| CN102581526A (en) * | 2012-02-08 | 2012-07-18 | 上海电气电站设备有限公司 | Mounting structure of component in large-sized container |
| CN107745210A (en) * | 2017-11-14 | 2018-03-02 | 安徽扬天金塑新能源装备股份公司 | A kind of pressure vessel annular solder device |
| CN108673041A (en) * | 2018-07-20 | 2018-10-19 | 盐城市大明化工机械有限公司 | A kind of pressure vessel special welding device and welding method |
-
1995
- 1995-02-09 JP JP2174895A patent/JPH08215839A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213706A (en) * | 2001-01-16 | 2002-07-31 | Ishikawajima Harima Heavy Ind Co Ltd | Boiler drum structure |
| WO2005051584A1 (en) * | 2003-11-25 | 2005-06-09 | Consani Engineering (Proprietary) Limited | Method and apparatus for manufacturing a thin-walled vessel by welding the parts |
| CN102581526A (en) * | 2012-02-08 | 2012-07-18 | 上海电气电站设备有限公司 | Mounting structure of component in large-sized container |
| CN107745210A (en) * | 2017-11-14 | 2018-03-02 | 安徽扬天金塑新能源装备股份公司 | A kind of pressure vessel annular solder device |
| CN108673041A (en) * | 2018-07-20 | 2018-10-19 | 盐城市大明化工机械有限公司 | A kind of pressure vessel special welding device and welding method |
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