JPH04162962A - Structure of truck of flying cutter for spiral steel pipe - Google Patents
Structure of truck of flying cutter for spiral steel pipeInfo
- Publication number
- JPH04162962A JPH04162962A JP28677390A JP28677390A JPH04162962A JP H04162962 A JPH04162962 A JP H04162962A JP 28677390 A JP28677390 A JP 28677390A JP 28677390 A JP28677390 A JP 28677390A JP H04162962 A JPH04162962 A JP H04162962A
- Authority
- JP
- Japan
- Prior art keywords
- spiral steel
- steel pipe
- pipe
- outer peripheral
- shaped body
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 238000005520 cutting process Methods 0.000 claims abstract description 28
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Sawing (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
〈産業上の利用分野〉
本発明は、連続して造管されるスパイラル鋼管の管軸方
向に同速度で走行しつつスパイラル鋼管を切断するため
に用いるのに適するスパイラル鋼管用走行切断機の台車
構造に関する。[Detailed Description of the Invention] [Object of the Invention] <Industrial Application Field> The present invention is directed to cutting a spiral steel pipe while traveling at the same speed in the axial direction of the spiral steel pipe that is continuously produced. The present invention relates to a cart structure of a traveling cutting machine for spiral steel pipes suitable for use.
〈従来の技術〉
従来、連続して造管されるスパイラル鋼管を所定の長さ
で切断するには、スパイラル鋼管が回転しつつ管軸方向
に進むため、スパイラル鋼管を把持する手段と切断トー
チとを管軸方向に沿って走行可能な台車に設けた走行切
断機が用いられている。例えば実公平１−４４２２３号
公報に開示されているように、１対のターニングローラ
をスパイラル鋼管の外周面を概ね挾むように押付けて、
スパイラル鋼管の回転成分を逃しつつ台車を管軸方向に
同期させて走行可能にしたものがある。<Conventional technology> Conventionally, in order to cut a continuously manufactured spiral steel pipe to a predetermined length, a means for gripping the spiral steel pipe and a cutting torch are required because the spiral steel pipe rotates and moves in the direction of the pipe axis. A traveling cutting machine is used, which is equipped with a cart that can travel along the tube axis direction. For example, as disclosed in Japanese Utility Model Publication No. 1-44223, a pair of turning rollers are pressed so as to substantially sandwich the outer peripheral surface of a spiral steel pipe,
There is a system that allows the cart to travel in synchronization with the direction of the tube axis while allowing the rotational components of the spiral steel tube to escape.
上記構造によると、スパイラル鋼管の外周面をターニン
グローラが点接触状態で転動するため管軸方向に対する
ずれが生じる。そのずれを補正するためには、ターニン
グローラの押付は角度を変えることが考えられるが、管
径の違い等により押付は力を変えた場合その都度角度調
整を必要とし、その作業が煩雑化する。また、工場エア
圧の変動や鋼管の微量な位置変動により押付は力が変化
することが考えられ、精度の再現性に難がある。According to the above structure, since the turning roller rolls on the outer circumferential surface of the spiral steel pipe in a point contact state, a deviation occurs in the pipe axis direction. In order to correct this deviation, it is possible to change the pressing angle of the turning roller, but if the pressing force is changed due to differences in pipe diameter, etc., the angle needs to be adjusted each time, making the work complicated. . In addition, the pressing force may change due to fluctuations in factory air pressure or minute changes in the position of the steel pipe, making it difficult to repeat the accuracy.
更に、近年の高速切断化によりプラズマ切断が用いられ
てきたが、プラズマ切断に於ける切り幅が従来のガス切
断に対して約１／２になり、切断の目違いに対する許容
量が減少してきたため、上記角度調整を高精度に行う必
要が生じる。切断中にリアルタイムで目違い発生量を検
出して角度補正を行うことになるが、その検出方法や高
精度な制御を行うことが困難である。Furthermore, plasma cutting has been used due to the recent increase in cutting speed, but the cutting width in plasma cutting has become approximately 1/2 that of conventional gas cutting, and the tolerance for miscutting has decreased. , it becomes necessary to perform the above angle adjustment with high precision. The angle is corrected by detecting the amount of misalignment in real time during cutting, but it is difficult to perform the detection method and highly accurate control.
また、従来、前記公報の第５図に示されているように、
リングにクランプ用シリンダを設置し、回転成分をこの
リング全体の回転で逃がし、クランプ接触面を面接触か
つ転動しない固定クランプによりクランプする方法が用
いられている。この方法では、必要十分なりランプ力を
要していればずれが生じないが、スパイラル鋼管径は、
大径のものから小径のものまで広範囲であるため、種々
の鋼管径に対応し得る数種類のリングを用意する必要が
あるため、設備費が高くなりかつ保守の点数が増える。Furthermore, conventionally, as shown in FIG. 5 of the above publication,
A method is used in which a clamping cylinder is installed on the ring, the rotating component is released by the rotation of the entire ring, and the clamp contact surface is clamped by a fixed clamp that makes surface contact and does not roll. With this method, no misalignment will occur as long as sufficient ramp force is required, but the diameter of the spiral steel pipe is
Since rings range in diameter from large to small, it is necessary to prepare several types of rings that can accommodate various steel pipe diameters, which increases equipment costs and maintenance costs.
また、鋼管径が変わるたびに上記リングを組替える必要
があるため、多大な労力と時間とが必要となり、効率も
悪くなるという問題がある。Furthermore, since it is necessary to rearrange the rings each time the steel pipe diameter changes, there is a problem that a great deal of labor and time is required, and efficiency is also reduced.
〈発明が解決しようとする課題〉
このような従来技術の問題点に鑑み、本発明の主な目的
は、連続して造管されるスパイラル鋼管の管軸方向の移
動に対するずれを極力防止し得るスパイラル鋼管用走行
切断機の台車構造を提供することにある。<Problems to be Solved by the Invention> In view of the problems of the prior art, the main object of the present invention is to prevent as much as possible the displacement of continuously produced spiral steel pipes in the axial direction. An object of the present invention is to provide a cart structure for a traveling cutting machine for spiral steel pipes.
［発明の構成コ
〈課題を解決するための手段〉
このような目的は、本発明によれば、管軸回りに回転し
つつ管軸方向に移動するスパイラル鋼管を支持するため
に、切断機を支持し、かつ前記管軸方向に沿って走行可
能な台車と、前記台車に支持されたガイド手段により前
記管軸に直交する面内にて周回し得るようにガイドされ
た無端帯状体と、前記無端帯状体の一部を前記スパイラ
ル鋼管の外周面に沿わせて弾発的に密接させるための弾
発的押付は手段とを有することを特徴とするスパイラル
鋼管用走行切断機の台車構造を提供することにより達成
される。[Structure of the Invention (Means for Solving the Problems)] According to the present invention, a cutting machine is used to support a spiral steel pipe that moves in the direction of the pipe axis while rotating around the pipe axis. a cart supporting and movable along the tube axis direction; an endless strip guided by guide means supported by the cart so as to be able to rotate in a plane perpendicular to the tube axis; Provided is a bogie structure for a traveling cutting machine for spiral steel pipes, characterized in that the invention includes elastic pressing means for elastically bringing a part of the endless strip into close contact with the outer peripheral surface of the spiral steel pipe. This is achieved by
〈作用〉
このようにすれば、無端帯状体を、スパイラル鋼管の外
周面に密接させてスパイラル鋼管の回転に伴って管軸に
直交する面内にて周回させることができ、かつスパイラ
ル鋼管の外周面に対して無端帯状体が面接触状態で弾発
的に密接して、点接触による転勤状態ではなく、固定ク
ランプ状態にし得ることから、スパイラル鋼管の回転方
向の成分を逃しつつ、台車を、管軸方向に対してスパイ
ラル鋼管と共に管軸方向のずれを防止して走行させるこ
とができる。<Function> In this way, the endless strip can be brought into close contact with the outer peripheral surface of the spiral steel pipe and can be made to circulate in a plane perpendicular to the pipe axis as the spiral steel pipe rotates, and Since the endless strip elastically comes into close contact with the surface in a surface contact state, and is not in a transfer state due to point contact, but can be in a fixed clamp state, the trolley can be moved while escaping the rotational component of the spiral steel pipe. It can be run together with a spiral steel pipe while preventing displacement in the pipe axis direction.
〈実施例〉
以下、本発明の好適実施例を添付の図面について詳しく
説明する。<Embodiments> Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第１図は、本発明に基づくスパイラル鋼管用走行切断機
の台車１の要部を示す正面図である。台車１は、図示さ
れない造管装置にて連続して造管されるスパイラル鋼管
２の管軸方向に沿って敷説されたレール上を走行可能に
設けられている。台車１上には、大小種々の径にて造管
されるスパイラル鋼管２の各中心を通る中心線ＣＬに対
して、左右対称に１対のエアシリンダ装置３が配設され
ており、それらのブツシュロッドの両突出端間にはブリ
ッジ部材４が掛は渡されている。ブリッジ部材４は、第
２図に併せて示されるように、管軸方向に沿う向きに所
定の間隔をおいて互いに平行に対峙する１対の長板４
ａ ％ ４ ｂからなり、それぞれの両端部同士を結合
する部材を介して両エアシリンダ装置２により支持され
ている。FIG. 1 is a front view showing the main parts of a cart 1 of a traveling cutting machine for spiral steel pipes according to the present invention. The trolley 1 is provided so as to be able to run on a rail laid along the axial direction of a spiral steel pipe 2 that is continuously manufactured by a pipe manufacturing apparatus (not shown). On the truck 1, a pair of air cylinder devices 3 are arranged symmetrically with respect to a center line CL passing through the centers of spiral steel pipes 2 manufactured with various diameters. A bridge member 4 is provided between both protruding ends of the bushing rod. As shown in FIG. 2, the bridge member 4 includes a pair of long plates 4 facing each other parallel to each other at a predetermined interval along the tube axis direction.
a % 4 b, and is supported by both air cylinder devices 2 via a member that connects both ends of each.
また、台車１には、ブリッジ部材４の中間部を管軸方向
に挾むように対峙する１対の板状のガイド部材５が立設
している。ガイド部材５の中間部には、ブリッジ部材４
の中間部に固設されたスライドブロック４Ｃを上下方向
にガイドするガイドスロット５ａが設けられている。Further, a pair of plate-shaped guide members 5 are erected on the trolley 1 and face each other so as to sandwich the intermediate portion of the bridge member 4 in the tube axis direction. A bridge member 4 is disposed in the middle part of the guide member 5.
A guide slot 5a is provided for vertically guiding a slide block 4C fixedly installed in the middle portion of the slide block 4C.
ブリッジ部材４の各長板４ａ、４ｂには、中心線ＣＬに
対して左右対称に３ケ所ずつ上方に向けて開放されたガ
イドスロット６が設けられている。Each of the long plates 4a and 4b of the bridge member 4 is provided with three guide slots 6 that are open upwardly and symmetrically with respect to the center line CL.
ガイドスロット６の上下方向に沿う両側縁部には互いに
対向する１対の凸状のレール部が形成されており、板状
のスライダ７が、その両側縁部に形成された凹部をガイ
ドスロット６の上記凸状レール部に嵌合させて、上下方
向にスライド可能にガイドされている。両長板４ａ、４
ｂの各ガイドスロット６毎にスライダ７が設けられてお
り、管軸方向に互いに対峙するスライダ７同士が、両者
間に掛は渡された固定軸８を介して結合されて、対をな
す１組のスライダ７同士がそれぞれ一体的に上下動し得
る。これら各ガイドスロット６とスライダ７とにより、
管軸方向を拘束している。A pair of convex rail portions facing each other are formed on both side edges along the vertical direction of the guide slot 6, and a plate-shaped slider 7 moves the recessed portions formed on both side edges of the guide slot 6. It is fitted into the convex rail portion of and guided so as to be slidable in the vertical direction. Both long plates 4a, 4
A slider 7 is provided for each guide slot 6 of b, and the sliders 7 facing each other in the tube axis direction are connected via a fixed shaft 8 that is hooked between them, forming a pair of sliders 7. The sliders 7 of the set can each move up and down integrally. With each of these guide slots 6 and slider 7,
The tube axis direction is restricted.
両長板４ａ、４ｂは、中央側を凹ませるようにＶ字状に
形成されており、その上下側縁部を各ガイドスロット６
毎に対応する階段状に形成されている。下側の各段部に
は、両長板４ ａ ％ ４ ｂ間に渡って底板１０が掛
は渡されて固設されており、各固定軸８の中央部に固着
されたブロック体９と対応する底板１０との間には弾発
的押付は手段としての圧縮コイルばね１１が装着されて
いる。ブロック体９の底面には底板１０を貫通するロッ
ド１２が固設されており、底板１０の下方に向けて突出
したロッド１２の遊端部にストッパボルト１３が螺着さ
れて、圧縮コイルばね１１により上方に向けて付勢され
るブロック体９と一体をなすスライダ７が抜は止めされ
て突出方向に対して位置決めされている。Both long plates 4a and 4b are formed in a V-shape so that the center side is concave, and the upper and lower edges thereof are connected to each guide slot 6.
Each section is shaped like a corresponding staircase. A bottom plate 10 is fixed to each of the lower step portions by extending between the long plates 4a and 4b, and a block body 9 fixed to the center of each fixed shaft 8 is connected to the bottom plate 10. A compression coil spring 11 is installed between the corresponding bottom plate 10 as a resilient pressing means. A rod 12 that passes through the bottom plate 10 is fixed to the bottom surface of the block body 9, and a stopper bolt 13 is screwed onto the free end of the rod 12 that projects downward from the bottom plate 10. The slider 7, which is integral with the block body 9 which is urged upward by the slider 7, is prevented from being pulled out and positioned with respect to the projecting direction.
対をなすスライダ７とブロック体９との間には、それぞ
れスプロケット１４が固定軸８に回動自在に軸支されて
いる。各スプロケット１４には、環状に連結されたロー
ラチェーン１５がそれぞれ噛み合わされており、両ロー
ラチェーン１５の互いに対応するローラリンク間には、
Ｌ字ブラケットを介して板状体１６が掛は渡されており
、両ローラチェーン１４同士が梯子状に結合されている
。A sprocket 14 is rotatably supported on a fixed shaft 8 between the pair of slider 7 and block body 9, respectively. Each sprocket 14 is engaged with an annularly connected roller chain 15, and between the corresponding roller links of both roller chains 15,
The plate-shaped body 16 is passed through an L-shaped bracket, and both roller chains 14 are connected to each other in a ladder shape.
尚、板状体１６の外周側の面には高い摩擦係数を有する
例えばゴム板１７が貼着されている。Note that, for example, a rubber plate 17 having a high coefficient of friction is adhered to the outer peripheral surface of the plate-like body 16.
前記した左右各３組ずつ計６組のスライダ７毎に設けら
れた各スプロケット１４に渡ってローラチェーン１５が
掛は渡されており、第１図に示されるように周回路の上
方部を各スプロケット１４によりガイドされて周回する
ようにされて、ローラチェーン１５及び板状体１６・ゴ
ム体１７からなる無端帯状体としてのキャタピラ１８が
構成されている。前記したように、１対の長板４ａ、４
ｂが管軸方向に沿う向きに所定の間隔をおいて互いに平
行に対峙しており、管軸に直交する面内を各スライダ７
がスライドし得ると共に、各スプロケット１４も管軸に
直交する面内にて回転し得るため、管軸に直交する面内
にてキャタピラ１８が周回し得る。このようにして、キ
ャタピラ１８の上方周回面が、スパイラル鋼管２の下端
に対して凹むように各スライダ７によりガイドされてい
る。A roller chain 15 is passed over each sprocket 14 provided for each of six sets of sliders 7, three sets each on the left and right sides, and as shown in FIG. A caterpillar 18 is configured as an endless band-like body made up of a roller chain 15, a plate-like body 16, and a rubber body 17, and is guided by a sprocket 14 to rotate. As mentioned above, the pair of long plates 4a, 4
b are parallel to each other at a predetermined interval in the direction along the tube axis, and each slider 7
can slide, and each sprocket 14 can also rotate in a plane perpendicular to the tube axis, so the caterpillar 18 can rotate in a plane perpendicular to the tube axis. In this way, the upper circumferential surface of the caterpillar 18 is guided by each slider 7 so as to be recessed relative to the lower end of the spiral steel pipe 2.
尚、台車１には、キャタピラ１８の下側の周回路をガイ
ドするためのガイド部材１９が設けられている。Note that the truck 1 is provided with a guide member 19 for guiding the lower circuit of the caterpillar 18.
台車１をスパイラル鋼管２の造管による管軸方向の移動
に同期させて走行させるには、ブリッジ部材４をエアシ
リンダ装置３により上昇させて、キャタ′ピラ１８の上
方周回面をスパイラル鋼管２の外周面の下部に押付けて
行う。エア圧と圧縮コイルばね１１のばね定数とを適切
に定めておくことにより、スパイラル鋼管２の外径の違
いに応じて各スライダ７の突出量を好適に変化させて、
キャタピラ１８をスパイラル鋼管２の外周面に沿わせて
弾発的に押付けることができる。例えば、比較的小径の
管の場合には第３図に示されるようにキャタピラ１８が
比較的大きく上昇し、比較的大径の管の場合には第４図
に示されるようにキャタピラ１８が比較的小さ（上昇し
て、キャタピラ１８を大小種々の径のスパイラル鋼管２
の外周面に好適に沿わせて、所定の押付は力をもって押
付けることができる。In order to run the cart 1 in synchronization with the movement of the spiral steel pipe 2 in the axial direction during pipe making, the bridge member 4 is raised by the air cylinder device 3, and the upper circumferential surface of the caterpillar 18 is moved around the spiral steel pipe 2. Press it against the bottom of the outer circumferential surface. By appropriately determining the air pressure and the spring constant of the compression coil spring 11, the amount of protrusion of each slider 7 can be suitably changed according to the difference in the outer diameter of the spiral steel pipe 2.
The caterpillar 18 can be elastically pressed along the outer peripheral surface of the spiral steel pipe 2. For example, in the case of a relatively small diameter pipe, the caterpillar 18 rises relatively significantly as shown in FIG. Small target (rises and moves the caterpillar 18 to
A predetermined pressing force can be applied along the outer peripheral surface of the housing.
スパイラル鋼管２の外周面にはキャタピラ１８のゴム板
１７が密接するため、両者間に摩擦力が生じて、スパイ
ラル鋼管２の管軸方向の移動に追従させて台車１を走行
させることができる。また、造管により回転しているス
パイラル鋼管２に伴ってキャタピラ１８が管軸に直交す
る面内にて周回し得るため、スパイラル鋼管２の周方向
成分をキャタピラ１８により逃すことができると共に、
回転するスパイラル鋼管２の外周面に対して密接したゴ
ム板１７が相対的に滑ることなく移動し得るため、スパ
イラル鋼管２とキャタピラ１８とが面接触状態になり、
管軸方向に対して両者がずれることを防止し得る。Since the rubber plate 17 of the caterpillar 18 is in close contact with the outer circumferential surface of the spiral steel pipe 2, a frictional force is generated between the two, and the trolley 1 can be moved to follow the movement of the spiral steel pipe 2 in the tube axis direction. In addition, since the caterpillar 18 can rotate in a plane perpendicular to the pipe axis as the spiral steel pipe 2 rotates during pipe making, the circumferential component of the spiral steel pipe 2 can be released by the caterpillar 18.
Since the rubber plate 17 that is in close contact with the outer peripheral surface of the rotating spiral steel pipe 2 can move without relatively slipping, the spiral steel pipe 2 and the caterpillar 18 come into surface contact,
It is possible to prevent both from shifting in the tube axis direction.
本走行切断機では、上記したようにスパイラル鋼管２と
同期して台車１を走行させ、台車１に支持された切断機
としての切断トーチ２０により、移動中にスパイラル鋼
管２を切断する。切断トーチ２０に例えばプラズマ切断
トーチを用いるとその切り幅が狭くなって、切断の目違
いが発生し易くなるが、前記したように管軸方向のずれ
が生じ難いため。切断の目違いの発生を好適に防止し得
る。また、何等かの原因によりキャタピラ１８の押付は
力が変化しても、キャタピラ１８との間の摩擦力が台車
１の走行抵抗よりも大きければ上記ずれを生じることが
なく、その摩擦力を発生し得る押付は力を確保するよう
にエア圧等を初期設定すれば、操業中の各種変動による
切断の目違いに対する繰返し精度も確保される。In this traveling cutting machine, the trolley 1 is run in synchronization with the spiral steel pipe 2 as described above, and the spiral steel pipe 2 is cut during the movement by the cutting torch 20 as a cutting machine supported by the trolley 1. If a plasma cutting torch, for example, is used as the cutting torch 20, the width of the cut will be narrow and misaligned cuts will likely occur, but as described above, deviations in the tube axis direction will be less likely to occur. The occurrence of miscuts can be suitably prevented. Furthermore, even if the pressing force of the caterpillar 18 changes due to some reason, if the frictional force between the caterpillar 18 and the tracker 18 is greater than the running resistance of the trolley 1, the above-mentioned deviation will not occur, and the frictional force will be generated. If the air pressure, etc. is initially set to ensure the pressing force that can be applied, repeatability can also be ensured against incorrect cutting due to various fluctuations during operation.
尚、小径管では、キャタピラを片側から押付けると、造
管装置側を支点とするスパイラル鋼管２の曲がりが生じ
て、台車１の走行により切断部に於ける撓み量の変化が
生じ、切断の目違いが発生する虞れがある。この場合に
は、２つのキャタピラを用いて直径方向両側から挾むよ
うに押付けることにより、上記的がりをなくすことが可
能である。また、圧縮コイルばね１１によるばね力に限
ることなく、圧縮コイルばね１１に代えてエアシリンダ
を設けて、エアばねによりキャタピラ１８を押付けるよ
うにしても良い。For small-diameter pipes, if the caterpillar is pressed from one side, the spiral steel pipe 2 will bend with the pipe-making equipment side as the fulcrum, and the amount of deflection at the cutting part will change as the trolley 1 runs, causing a problem in cutting. There is a possibility that a misunderstanding may occur. In this case, it is possible to eliminate the above-mentioned aim by using two caterpillars to press the target so as to sandwich it from both sides in the diametrical direction. Moreover, the spring force is not limited to the compression coil spring 11, but an air cylinder may be provided in place of the compression coil spring 11, and the caterpillar 18 may be pressed by the air spring.
［発明の効果］
このように本発明によれば、無端帯状体をスパイラル鋼
管の外周面に沿わせて弾発的に密接させることにより、
両者を相対的に滑りのない面接触状態にすることができ
、管軸方向のずれを防止し得るため、切断の目違いの発
生をな（すことが可能である。また、径違いのスパイラ
ル鋼管に対しても無端帯状体により相対的に滑りのない
面接触状態を確保しつつ対応可能であり、何等かの原因
により押付は力が変化しても、スパイラル鋼管と無端帯
状体との間の摩擦力を台車の走行抵抗より大きくしてお
くことにより、同等不都合を生じることなく台車を走行
可能であり、押付は力の変化に対する調整手段を必要と
しないため構造を簡略化し得る。また、前記リング式ク
ランプ方式に必要な鋼管径に対応するための組替え作業
が必要なくなり、設備費、保守費、組替えに要する労力
及び時間を節約できる等、その効果は極めて大である。[Effects of the Invention] As described above, according to the present invention, by elastically bringing the endless band-shaped body into close contact with the outer peripheral surface of the spiral steel pipe,
It is possible to bring the two into a relatively non-slip surface contact state, and to prevent misalignment in the direction of the tube axis, making it possible to avoid misaligned cuts. It can also be applied to steel pipes while ensuring a relatively slip-free surface contact state using the endless strip, and even if the pressing force changes due to some reason, the pressure between the spiral steel pipe and the endless strip will remain the same. By making the frictional force larger than the running resistance of the trolley, the trolley can run without causing the same inconvenience, and the structure can be simplified because pressing does not require adjustment means for changes in force.Also, There is no need to reassemble the steel pipes to accommodate the steel pipe diameter required for the ring type clamp method, and the effects are extremely large, such as saving equipment costs, maintenance costs, labor and time required for reassembly.
第１図、本発明に基づくスパイラル鋼管用走行切断機の
台車の要部を示す正面図である。
第２図は、第１図の■−■線に沿って見た要部断面図で
ある。
第３図及び第４図は、径違いのスパイラル鋼管に対する
本装置の使用状態を示す第１図に対応する概略図である
。
１・・・台車、２・・・スパイラル鋼管、３・・・エア
シリンダ装置、４・・・ブリッジ部材、４ａ、４ｂ・・
・長板、４Ｃ・・・スライドブロック、５・・・ガイド
部材、５ａ・・・ガイドスロット、６・・・ガイドスロ
ット、７スライダ、８・・・固定軸、９・・・ブロック
体、１０・・・底板、１１・・・圧縮コイルばね、１２
・・・ロッド、１３・・・ストッパボルト、１４・・・
スプロケット、１５・・・ローラチェーン、１６・・・
板状体、１７・・・ゴム板、１８・・・キャタピラ、１
９・・・ガイド部材、２０・・・切断トーチ
特許 出 願人新日本製鐵株式會社
同 日鐵プラント設計株式会社代理人弁理士大
島陽−（外１名）
第２図
第３図
第４図FIG. 1 is a front view showing a main part of a cart of a traveling cutting machine for spiral steel pipes according to the present invention. FIG. 2 is a cross-sectional view of a main part taken along the line ■-■ in FIG. 1. FIGS. 3 and 4 are schematic diagrams corresponding to FIG. 1 showing how the present device is used for spiral steel pipes of different diameters. DESCRIPTION OF SYMBOLS 1... Truck, 2... Spiral steel pipe, 3... Air cylinder device, 4... Bridge member, 4a, 4b...
- Long plate, 4C...Slide block, 5...Guide member, 5a...Guide slot, 6...Guide slot, 7 Slider, 8...Fixed shaft, 9...Block body, 10 ... Bottom plate, 11 ... Compression coil spring, 12
...Rod, 13...Stopper bolt, 14...
Sprocket, 15... Roller chain, 16...
Plate-shaped body, 17... Rubber plate, 18... Caterpillar, 1
9...Guide member, 20...Cutting torch patent Applicant: Nippon Steel Corporation, Nippon Steel Plant Design Co., Ltd. Representative Patent Attorney Yo Oshima (1 other person) Figure 2 Figure 3 Figure 4 figure
Claims (1)
管を支持するために、切断機を支持し、かつ該管軸方向
に沿って走行可能な台車と、前記台車に支持されたガイ
ド手段により前記管軸に直交する面内にて周回し得るよ
うにガイドされた無端帯状体と、前記無端帯状体の一部
を前記スパイラル鋼管の外周面に沿わせて弾発的に密接
させるための弾発的押付け手段とを有することを特徴と
するスパイラル鋼管用走行切断機の台車構造。In order to support the spiral steel pipe that rotates around the tube axis and moves in the tube axis direction, a cart that supports a cutting machine and can travel along the tube axis direction, and a guide means supported by the cart are used. an endless strip guided so as to be able to circulate in a plane perpendicular to the tube axis; and an elastic member for elastically bringing a part of the endless strip into close contact with the outer peripheral surface of the spiral steel pipe. 1. A bogie structure for a traveling cutting machine for spiral steel pipes, characterized in that it has an active pressing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28677390A JP2638284B2 (en) | 1990-10-24 | 1990-10-24 | Bogie structure of traveling cutting machine for spiral steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28677390A JP2638284B2 (en) | 1990-10-24 | 1990-10-24 | Bogie structure of traveling cutting machine for spiral steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04162962A true JPH04162962A (en) | 1992-06-08 |
| JP2638284B2 JP2638284B2 (en) | 1997-08-06 |
Family
ID=17708863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28677390A Expired - Fee Related JP2638284B2 (en) | 1990-10-24 | 1990-10-24 | Bogie structure of traveling cutting machine for spiral steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2638284B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2469823C2 (en) * | 2007-04-04 | 2012-12-20 | Олимпия 80 С.Р.Л. | Flying cutting device for welded pipes |
| CN103979276A (en) * | 2014-05-29 | 2014-08-13 | 济钢集团有限公司 | Deviation rectification mechanism based on track heavy-duty transport machine |
| CN108213569A (en) * | 2018-03-11 | 2018-06-29 | 江苏金鑫电器有限公司 | A kind of aluminium alloy spiral welded pipe is with line hi-precision cutting device |
| CN109623610A (en) * | 2018-12-22 | 2019-04-16 | 田少杰 | A kind of steel tube derusting machine |
-
1990
- 1990-10-24 JP JP28677390A patent/JP2638284B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2469823C2 (en) * | 2007-04-04 | 2012-12-20 | Олимпия 80 С.Р.Л. | Flying cutting device for welded pipes |
| CN103979276A (en) * | 2014-05-29 | 2014-08-13 | 济钢集团有限公司 | Deviation rectification mechanism based on track heavy-duty transport machine |
| CN108213569A (en) * | 2018-03-11 | 2018-06-29 | 江苏金鑫电器有限公司 | A kind of aluminium alloy spiral welded pipe is with line hi-precision cutting device |
| CN108213569B (en) * | 2018-03-11 | 2024-04-02 | 江苏金鑫电器有限公司 | High-precision cutting device for aluminum alloy spiral welded pipe along with wire |
| CN109623610A (en) * | 2018-12-22 | 2019-04-16 | 田少杰 | A kind of steel tube derusting machine |
| CN109623610B (en) * | 2018-12-22 | 2020-10-30 | 山东金友设备安装工程有限公司 | Steel pipe deruster |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2638284B2 (en) | 1997-08-06 |
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