JP2639815B2 - Cleaning device for the inner surface of pipe welds - Google Patents
Cleaning device for the inner surface of pipe weldsInfo
- Publication number
- JP2639815B2 JP2639815B2 JP63030610A JP3061088A JP2639815B2 JP 2639815 B2 JP2639815 B2 JP 2639815B2 JP 63030610 A JP63030610 A JP 63030610A JP 3061088 A JP3061088 A JP 3061088A JP 2639815 B2 JP2639815 B2 JP 2639815B2
- Authority
- JP
- Japan
- Prior art keywords
- arm
- attached
- cleaning
- tip
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 ……本発明は二つの配管の端部同志を溶接したとき、そ
の溶接部内面側を金属ブラシや砥石により清掃する清掃
装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a cleaning device for cleaning an inner surface of a welded portion with a metal brush or a grindstone when two pipe ends are welded to each other.
……比較的大径の鋼管を突き合わせ溶接し、水力発電所
等の導水管その他を設置する場合、夫々の鋼管の端部を
開先し、両開先部間を溶接していた。このような鋼管
は、その内面を防錆するために亜鉛浴槽に浸積し（いわ
ゆるドブ付けして）、亜鉛メッキを行っていた。ところ
が、かかる鋼管の端部同志を突き合わせ溶接すると、そ
の溶接熱により溶接部内面の亜鉛メッキ部が剥離し防錆
効果を失っていた。When relatively large-diameter steel pipes are butt-welded to install a water transmission pipe or the like in a hydroelectric power plant, the ends of the respective steel pipes are grooved, and the gaps are welded. Such a steel pipe has been immersed in a zinc bath (so-called bumping) and galvanized to prevent rust on the inner surface. However, when the ends of such steel pipes were butt-welded, the galvanized portion on the inner surface of the welded portion was peeled off due to the welding heat, and the rust prevention effect was lost.
……そこで、本発明は溶接部の内面を本清掃装置により
研磨し、その後にその溶接部内面を塗装し得るように準
備できるものを提供することを目的とし、その構成は次
の通りである。Therefore, an object of the present invention is to provide an object which can be prepared so that the inner surface of a welded portion can be polished by the present cleaning device and then the inner surface of the welded portion can be painted. .
……本発明の配管溶接部内面の清掃装置は、長尺な筒状
部１が配管22の軸線上に位置されるように該筒状部１の
外周に複数の脚部３を設けた装置本体２と、 ……前記筒状部１に挿通され一端に回転駆動源４が取付
けられる回転軸５と、 ……その回転軸５の他端に設けられた回転基部23と、 ……先端が前記筒状部１の半径方向に移動可能に、その
回転基部23に後端が枢着されると共に、その先端が前記
半径方向の中心側に付勢され且つ、前記回転軸５の回転
に基づく遠心力によりその付勢力に抗してその先端が前
記半径方向の外方に移動するように構成したアーム６
と、 ……そのアーム６の前記先端に取付けられたブラシ又は
砥石からなる清掃具７と、 を具備するものである。... The apparatus for cleaning the inner surface of a welded portion of a pipe according to the present invention is an apparatus in which a plurality of legs 3 are provided on the outer periphery of the tubular section 1 so that the elongated tubular section 1 is positioned on the axis of the pipe 22. A main body 2, a rotary shaft 5 which is inserted into the cylindrical portion 1 and has a rotary drive source 4 attached to one end thereof, a rotary base 23 provided at the other end of the rotary shaft 5, The rear end of the cylindrical portion 1 is pivotally connected to the rotation base 23 so as to be movable in the radial direction, and the front end of the cylindrical portion 1 is biased toward the center in the radial direction, and is based on the rotation of the rotary shaft 5. An arm 6 whose tip moves outward in the radial direction against the urging force by centrifugal force
And a cleaning tool 7 made of a brush or a grindstone attached to the tip of the arm 6.
……本発明の装置は、第１図に示す如く配管22の内面に
挿通され、その先端に設けられた清掃具７が溶接部19内
面を研磨するものである。そのために、電動モータから
なる駆動源４により回転軸５を回転させ、その先端に設
けた回転基部23と共にアーム６を回転させる。すると、
アーム６の先端部はバネ20に抗してその遠心力により半
径方向外方へ移動し、清掃具７が溶接部19内面に圧接
し、その内面に追随する。そのため、溶接部19内面が偏
心していたり凹凸が存在したとしても確実に清掃され
る。The apparatus of the present invention is inserted into the inner surface of the pipe 22, as shown in FIG. 1, and the cleaning tool 7 provided at the tip thereof grinds the inner surface of the welded portion 19. For this purpose, the rotating shaft 5 is rotated by the driving source 4 composed of an electric motor, and the arm 6 is rotated together with the rotating base 23 provided at the end thereof. Then
The tip of the arm 6 moves radially outward due to the centrifugal force against the spring 20, and the cleaning tool 7 presses against the inner surface of the welded portion 19 and follows the inner surface. Therefore, even if the inner surface of the welded portion 19 is eccentric or has irregularities, it is reliably cleaned.
……次に、図面に基づいて本発明の実施例につき説明す
る。Next, an embodiment of the present invention will be described with reference to the drawings.
……本装置は装置本体２と、その装置本体２に挿通され
る回転軸５と、回転軸５の先端に取り付けられた回転基
部23と、回転基部23に夫々後端が枢着された一対のアー
ム６と、そのアーム６の先端に取り付けられた清掃具７
とを有する。装置本体２は、複数の連結体からなり、夫
々筒状部１と筒状部１外周に放射方向に突設された三本
の脚部３とを有する。この脚部３は、チューブ状に形成
された部材に伸縮部10が伸縮自在に螺着される。そし
て、伸縮部10の先端にボールローラ11が設けられてい
る。また、筒状部１の両端にはフランジ部21が形成され
ている。そして、夫々の筒状部１には回転軸５が軸受け
13を介して回転自在に内装されている。この回転軸５の
一端には、第４図に示す如くカップリング12が設けら
れ、そのカップリング12の雌ねじに他の回転軸５の先端
部が螺着される。そして、夫々の筒状部１はそのフラン
ジ部21同志が突き合わされて第５図に示すクランプ９に
より締結される。また、筒状部１外面には適宜位置に挿
入長さ測定用の目盛が刻設されあるいは、スケールが貼
り付けられる。そして、最後部の回転軸５のフランジに
はベース14が取付けられると共に、そのベース14に駆動
源４が取付けられる。そして、駆動源４の回転軸と装置
本体２内の回転軸５とが締結される。また、回転軸５の
先端には第１図および第２図に示すような半径方向に伸
びる回転基部23と、その両端に後端が枢着された一対の
アーム６とが設けられ、アーム６の中間部と回転基部23
の中間部との間にバネ20が取付けられてアーム６を回転
軸５の軸線方向に回動するように付勢している。また、
アーム６先端にはこの実施例では砥石からなる清掃具７
が設けられている。しかして、配管22の長さに応じて複
数の筒状部１を連結し、それを配管22内に挿入する。そ
して、清掃具７が溶接部19の位置に整合するように筒状
部１表面に貼り付けられたスケール等の目盛によりその
挿入長さを定める。そして、ベース14を配管22の開口端
に固定する。次いで、そのベース14に固定された駆動源
４を駆動し、回転軸５を回転させ、清掃具７を溶接部19
内面に押圧させ、その内面を研磨する。次いで、回転軸
の先端の前記したアーム６および回転基部23を取り外
し、その代わりに図６および図７に示す如く鏡16および
ハロゲンランプ15を取付ける。そして、ハロゲンランプ
15を点灯させ、その後端に設けたハンドル18により回転
軸を少しずつ断続的に回転させ、溶接部19内面側の清掃
状態を点検する。... This device comprises an apparatus main body 2, a rotating shaft 5 inserted through the apparatus main body 2, a rotating base 23 attached to the tip of the rotating shaft 5, and a pair of rear ends pivotally attached to the rotating base 23, respectively. Arm 6 and a cleaning tool 7 attached to the tip of the arm 6
And The apparatus main body 2 is composed of a plurality of connected bodies, each of which has a cylindrical portion 1 and three legs 3 projecting radially around the cylindrical portion 1. The leg 3 has a telescopic part 10 screwed to a member formed in a tube shape so as to be able to expand and contract. Further, a ball roller 11 is provided at the tip of the expansion and contraction section 10. Further, flange portions 21 are formed at both ends of the tubular portion 1. A rotating shaft 5 is mounted on each of the cylindrical portions 1.
It is rotatably mounted via 13. As shown in FIG. 4, a coupling 12 is provided at one end of the rotary shaft 5, and the distal end of another rotary shaft 5 is screwed to a female screw of the coupling 12. Then, the respective cylindrical portions 1 are fastened by the clamps 9 shown in FIG. A scale for inserting length measurement is engraved at an appropriate position on the outer surface of the cylindrical portion 1 or a scale is attached. A base 14 is attached to the flange of the rearmost rotating shaft 5, and the drive source 4 is attached to the base 14. Then, the rotation shaft of the drive source 4 and the rotation shaft 5 in the apparatus main body 2 are fastened. A rotating base 23 extending in the radial direction as shown in FIGS. 1 and 2 and a pair of arms 6 having rear ends pivotally mounted on both ends thereof are provided at the tip of the rotating shaft 5. Intermediate part and rotating base 23
A spring 20 is attached to the middle of the arm to bias the arm 6 to rotate in the axial direction of the rotating shaft 5. Also,
A cleaning tool 7 made of a whetstone in this embodiment is provided at the tip of the arm 6.
Is provided. Thus, the plurality of tubular portions 1 are connected according to the length of the pipe 22 and inserted into the pipe 22. The insertion length is determined by a scale such as a scale attached to the surface of the tubular portion 1 so that the cleaning tool 7 is aligned with the position of the welded portion 19. Then, the base 14 is fixed to the open end of the pipe 22. Next, the driving source 4 fixed to the base 14 is driven, the rotating shaft 5 is rotated, and the cleaning tool 7 is connected to the welding portion 19.
The inner surface is pressed and the inner surface is polished. Next, the arm 6 and the rotating base 23 at the tip of the rotating shaft are removed, and a mirror 16 and a halogen lamp 15 are attached instead, as shown in FIGS. And halogen lamp
Light 15 is turned on, and the rotating shaft is intermittently rotated little by little by a handle 18 provided at the rear end, and the cleaning state of the inner surface side of the welded portion 19 is checked.
……なお、配管22の長さが比較的長い場合はトランシッ
ト17を利用し、第６図の如くその研磨部を観察すること
ができる。そして、内面が確実に清掃されていることを
確認した後、鏡16,ハロゲンランプ15を回転軸５先端か
ら取り外し、そこにスプレー式塗装装置を取付け、その
回転軸を徐々に回転すると共に、そのノズル先端から塗
料を噴射させ、溶接部19の内面側部分を塗装すればよ
い。When the length of the pipe 22 is relatively long, the polished portion can be observed using the transit 17 as shown in FIG. Then, after confirming that the inner surface is securely cleaned, the mirror 16 and the halogen lamp 15 are removed from the tip of the rotating shaft 5, a spray-type coating device is attached thereto, and the rotating shaft is gradually rotated. The paint may be sprayed from the tip of the nozzle to paint the inner surface side portion of the welded portion 19.
……なお、塗装は本出願人が既に出願した特開昭59−15
0566号の装置により行うことができる。The coating is described in Japanese Unexamined Patent Application Publication No.
No. 0566.
……本発明の清掃装置は、以上のような構成からなり次
の効果を有する。... The cleaning device of the present invention is configured as described above and has the following effects.
……本装置は、回転軸５の回転に基づきアーム６の先端
がその遠心力により外方に移動するものであり、そのア
ーム６先端に清掃具７が設けられているから、清掃具７
を配管の溶接部内面に押圧した状態で摺接することがで
きる。したがって、配管内面が例え偏心していてもある
いは凹凸が存在していても清掃具７がそれに追随し、配
管内面の溶接部を一定の押圧力により確実に清掃するこ
とができる。しかも、本装置はアーム６の先端が半径方
向中心側に付勢されているため、回転軸５の回転してい
ないときには、清掃具７が配管内面に圧接することのな
い構造となる。それにより、装置を配管中に挿入する際
に、配管の不必要な部分をブラシや砥石等により傷つけ
る虞がない。... In this apparatus, the tip of the arm 6 moves outward due to the centrifugal force based on the rotation of the rotating shaft 5. Since the cleaning tool 7 is provided at the tip of the arm 6, the cleaning tool 7 is provided.
Can be slid on the inner surface of the welded portion of the pipe while being pressed. Therefore, even if the inner surface of the pipe is eccentric or has irregularities, the cleaning tool 7 follows the inner surface, and the welded portion on the inner surface of the pipe can be reliably cleaned with a constant pressing force. Moreover, since the distal end of the arm 6 is urged toward the center in the radial direction, the cleaning device 7 does not press against the inner surface of the pipe when the rotating shaft 5 is not rotating. Thus, when the device is inserted into the pipe, there is no possibility that an unnecessary portion of the pipe is damaged by a brush, a grindstone, or the like.
第１図は本清掃装置の一部縦断面図、第２図は第１図の
II−II矢視断面略図、第３図は第１図のIII−III矢視断
面略図、第４図は同装置の筒状部１端部の縦断面図、第
５図は二つの同端部同志を接続するクランプ９の正面
図、第６図は本清掃装置により清掃した内面を確認する
ための検査装置、第７図は第６図の先端部拡大図、第８
図は第６図の後端の一部縦断面拡大図。 １……筒状部、２……装置本体 ３……脚部、４……駆動源 ５……回転軸、６……アーム ７……清掃具、９……クランプ 10……伸縮部、11……ボールローラ 12……カップリング、13……軸受け 14……ベース、15……ハロゲンランプ 16……鏡、17……トランシット 18……ハンドル、19……溶接部 20……バネ、21……フランジ部 22……配管、23……回転基部FIG. 1 is a partial vertical sectional view of the cleaning device, and FIG.
FIG. 3 is a schematic cross-sectional view taken along the line III-III of FIG. 1, FIG. 4 is a vertical cross-sectional view of one end of the cylindrical portion of the apparatus, and FIG. FIG. 6 is a front view of a clamp 9 for connecting parts, FIG. 6 is an inspection device for confirming an inner surface cleaned by the cleaning device, FIG. 7 is an enlarged view of a tip portion of FIG.
The figure is a partially longitudinal enlarged view of the rear end of FIG. DESCRIPTION OF SYMBOLS 1 ... Cylindrical part, 2 ... Device main body 3 ... Leg part 4, ... Drive source 5 ... Rotating shaft, 6 ... Arm 7 ... Cleaning tool, 9 ... Clamp 10 ... Extension part, 11 … Ball roller 12… Coupling, 13… Bearing 14… Base, 15… Halogen lamp 16… Mirror, 17… Transit 18… Handle, 19… Welded part 20… Spring, 21… … Flange 22… Piping, 23… Rotation base
Claims (2)
れるように該筒状部１の外周に複数の脚部３を設けた装
置本体２と、 前記筒状部１に挿通され一端に回転駆動源４が取付けら
れる回転軸５と、 その回転軸５の他端に設けられた回転基部23と、 先端が前記筒状部１の半径方向に移動可能に、その回転
基部23に後端が枢着されると共に、その先端が前記半径
方向の中心側に付勢され且つ、前記回転軸５の回転に基
づく遠心力によりその付勢力に抗してその先端が前記半
径方向の外方に移動するように構成したアーム６と、 そのアーム６の前記先端に取付けられたブラシ又は砥石
からなる清掃具７と、 を具備する配管溶接部内面の清掃装置。An apparatus body provided with a plurality of legs on an outer periphery of the tubular portion so that the elongated tubular portion is positioned on an axis of a pipe; A rotary shaft 5 having a rotary drive source 4 attached to one end thereof, a rotary base 23 provided at the other end of the rotary shaft 5, and a rotary shaft having a tip movable in the radial direction of the cylindrical portion 1. A rear end is pivotally attached to the base portion 23, and a front end thereof is urged toward the center in the radial direction, and a front end of the rear end is opposed to the urging force by centrifugal force based on rotation of the rotary shaft 5. An arm 6 configured to move outward in the direction, and a cleaning tool 7 made of a brush or a grindstone attached to the tip of the arm 6.
に取付けられると共に、前記清掃具７による溶接部の清
掃の後に、前記アーム６に代えて前記回転軸５に清掃面
検査用の鏡が着脱自在に取付けられるように構成した特
許請求の範囲第１項記載の清掃装置。2. The arm 6 and the rotating base 23 are detachably mounted, and a mirror for cleaning surface inspection is provided on the rotating shaft 5 in place of the arm 6 after cleaning of a welded portion by the cleaning tool 7. The cleaning device according to claim 1, wherein the cleaning device is configured to be detachably attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63030610A JP2639815B2 (en) | 1988-02-12 | 1988-02-12 | Cleaning device for the inner surface of pipe welds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63030610A JP2639815B2 (en) | 1988-02-12 | 1988-02-12 | Cleaning device for the inner surface of pipe welds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01205896A JPH01205896A (en) | 1989-08-18 |
| JP2639815B2 true JP2639815B2 (en) | 1997-08-13 |
Family
ID=12308642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63030610A Expired - Lifetime JP2639815B2 (en) | 1988-02-12 | 1988-02-12 | Cleaning device for the inner surface of pipe welds |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2639815B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7107863B2 (en) * | 2002-04-05 | 2006-09-19 | Vetco Gray Inc. | Internal riser inspection system, apparatus and methods of using same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732920B (en) * | 2019-10-28 | 2021-06-22 | 徐州市万铭精密铸造有限公司 | Centrifugal grinding device for inner hole of casting part |
| CN114535747B (en) * | 2022-04-27 | 2022-07-12 | 江苏北高电气科技有限公司 | Arc welding equipment with clearance function |
| CN114850991A (en) * | 2022-07-07 | 2022-08-05 | 泗洪晶隆机械制造有限公司 | Inner surface polishing equipment for special-shaped castings |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57107264A (en) * | 1980-12-25 | 1982-07-03 | Kawasaki Steel Corp | Method and device for coating internal surface of steel tube |
-
1988
- 1988-02-12 JP JP63030610A patent/JP2639815B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7107863B2 (en) * | 2002-04-05 | 2006-09-19 | Vetco Gray Inc. | Internal riser inspection system, apparatus and methods of using same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01205896A (en) | 1989-08-18 |
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