NO134315B - - Google Patents

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Publication number
NO134315B
NO134315B NO701/70A NO70170A NO134315B NO 134315 B NO134315 B NO 134315B NO 701/70 A NO701/70 A NO 701/70A NO 70170 A NO70170 A NO 70170A NO 134315 B NO134315 B NO 134315B
Authority
NO
Norway
Prior art keywords
frame
gripping
pipes
claw
pipe
Prior art date
Application number
NO701/70A
Other languages
Norwegian (no)
Other versions
NO134315C (en
Inventor
M P Banjavich
G R Morrissey
A V Guadino
Original Assignee
Taylor Diving & Salvage Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taylor Diving & Salvage Co filed Critical Taylor Diving & Salvage Co
Publication of NO134315B publication Critical patent/NO134315B/no
Publication of NO134315C publication Critical patent/NO134315C/no

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H19/00—Marine propulsion not otherwise provided for
    • B63H19/08—Marine propulsion not otherwise provided for by direct engagement with water-bed or ground
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/0061—Underwater arc welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/34—Diving chambers with mechanical link, e.g. cable, to a base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/26—Repairing or joining pipes on or under water

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Plasma & Fusion (AREA)
  • Arc Welding In General (AREA)
  • Pipeline Systems (AREA)
  • Clamps And Clips (AREA)
  • Supports For Pipes And Cables (AREA)
  • Earth Drilling (AREA)

Abstract

Innretning til bruk ved skjøting av rør på havbunnen.Device for use when splicing pipes on the seabed.

Description

Oppfinnelsen vedrører en innretning til bruk ved skjøting av rør på havbunnen, og innbefattende en stiv ramme hvori det er montert gripeorganer beregnet for samvirke med rørene. The invention relates to a device for use when splicing pipes on the seabed, and including a rigid frame in which gripping means intended for cooperation with the pipes are mounted.

Fra tysk patent nr. 1 167 128 er det kjent en innretning for legging av mufferør. Innretningen innbefatter en stiv ramme med flere gripeanordninger beregnet for samvirke med rørene. En fast klave legges bak muffens på et allerede lagt rør, mens to gripeklør kan gripe tak i et mufferør som skal føres inn i det allerede lagte rør, og disse gripeklørne er montert forskyvbart på en rammekonstruksjon slik at det nye rør kan føres inn i muf-fen. En ulempe ved denne innretning er at den i og for seg ikke muliggjør innretting av rørendene, men bare tar sikte på å kunne skyve rørene inn i hverandre. From German patent no. 1 167 128, a device for laying sleeve pipes is known. The device includes a rigid frame with several gripping devices intended for cooperation with the pipes. A fixed claw is placed behind the sleeve on an already laid pipe, while two gripping claws can grip a sleeve pipe to be inserted into the already laid pipe, and these gripping claws are mounted displaceably on a frame structure so that the new pipe can be inserted into the sleeve - cool. A disadvantage of this device is that it in and of itself does not enable alignment of the pipe ends, but only aims to be able to push the pipes into each other.

Fra US-patent nr. 3 267 682 er det kjent en rammekonstruksjon med gripeanordninger beregnet for samvirke med rør. Disse gripeanordninger er opphengt slik i en ramme at de kan for-skyves i tre retninger, slik at man kan bringe det eller de nye mufferør i riktig fluktretning i forhold til det allerede lagte mufferør, og så kan skyve rørene inn i hverandre..En ulempe ved denne utførelse er at man ikke kan tilveiebringe et svingepunkt• for eksempelvis det ene rør, og på den måten svinge rørenden til ønsket stilling. From US patent no. 3 267 682, a frame construction with gripping devices intended for cooperation with pipes is known. These gripping devices are suspended in a frame in such a way that they can be moved in three directions, so that one can bring the new sleeve pipe(s) in the correct direction of flight in relation to the already laid sleeve pipe, and then push the pipes into each other. the disadvantage of this design is that you cannot provide a pivot point• for, for example, one pipe, and in that way swing the end of the pipe to the desired position.

Foreliggende oppfinnelse tar sikte på å tilveiebringe en innretning som muliggjør innstilling av rørendene i forhold til hverandre, og for dette formål er det tilveiebragt en innretning som nevnt innledningsvis, hvilken innretning er kjen-netegnet ved at den har gripeorganer i form av to par gripeklør beregnet for grepsamvirke med de respektive rør. Ved å stillings-regulere de enkelte gripeklør uavhengig av hverandre og benytte en av dem i et par som svingepunkt for røret, kan man innstille rørenden i ønsket grad ved å la den andre gripeklo utøve det nød-vendige horisontale, vertikale eller skrå kraft på røret. Etter behov kan således enten den nærmest skjøten beliggende gripeklo i paret eller den lengst fra skjøten beliggende gripeklo benyttes som svingepunkt henholdsvis angrepsorgan på røret. Den sti-ve rammen, som også fordelaktig har en ganske betydelig vekt, -slik at den danner et stødig fundament, muliggjør på denne måten innretting av skjevtliggende rørender, slik at de kan skjø-tes. The present invention aims to provide a device which enables the pipe ends to be adjusted in relation to each other, and for this purpose a device has been provided as mentioned in the introduction, which device is characterized by the fact that it has gripping means in the form of two pairs of gripping claws calculated for gripping cooperation with the respective pipes. By position-regulating the individual gripping claws independently of each other and using one of them in a pair as a pivot point for the pipe, the pipe end can be set to the desired degree by letting the other gripping claw exert the necessary horizontal, vertical or oblique force on the pipe . As needed, either the claw in the pair located closest to the joint or the claw located furthest from the joint can be used as a pivot point or attack device on the pipe. The rigid frame, which also advantageously has a fairly significant weight, so that it forms a stable foundation, enables in this way alignment of crooked pipe ends, so that they can be joined.

Fordelaktig utføres innretningen slik at gripeklør-nes åpning i grepstilling rundt røret, dvs. i lukket stilling, er større enn rørtverrsnittet. Dette medfører den fordelen at rørene ikke gripes fast av klørne, men kan bevege seg noe, slik ab man Advantageously, the device is designed so that the opening of the gripping claws in the gripping position around the pipe, i.e. in the closed position, is larger than the pipe cross-section. This has the advantage that the pipes are not gripped by the claws, but can move somewhat, as ab man

derfor unngår uønskede spenningspåkjenninger i rørene. therefore avoids unwanted stress in the pipes.

Ved en fordelaktig utførelsesform består gripeklør-ne av to leddforbundne bakker som er forbundet med rammen med hver sin arbeidssylinder, idet hver klo i leddpunktet er forbundet med rammen med en tredje arbeidssylinder. En slik enkel og robust konstruksjon muliggjør den nødvendige manipulering av gripeorganene eller gripeklørne. In an advantageous embodiment, the gripping claws consist of two articulated jaws which are connected to the frame with each working cylinder, each claw at the joint point being connected to the frame with a third working cylinder. Such a simple and robust construction enables the necessary manipulation of the gripping organs or claws.

Oppfinnelsen skal forklares nærmere under henvis-ning til tegningene hvor The invention shall be explained in more detail with reference to the drawings where

figur 1 skjematisk viser hvorledes en ramme kan føres ned fra et skip mot to rør, Figure 1 schematically shows how a frame can be lowered from a ship towards two pipes,

figur 2 viser plasseringen av rammen over de to rørene, figure 2 shows the location of the frame above the two pipes,

figur j5 viser et utsnitt av et perspektivriss av rammen i figur 1, figure j5 shows a section of a perspective view of the frame in figure 1,

figur 4 viser et snitt gjennom innretningen i figur 3, figure 4 shows a section through the device in figure 3,

figur 5 viser et forstørret bilde av en gri.peklo, figure 5 shows an enlarged image of a gri.peklo,

figur 6 viser et snitt etter linjen VI-VI i figur 5» og figure 6 shows a section along the line VI-VI in figure 5" and

figur 7 viser et snitt etter linjen VII-VII i figur 5. figure 7 shows a section along the line VII-VII in figure 5.

I figur 1 er et fartøy betegnet med V, mens sjø-bunnen er betegnet med S. Fartøyet V har kraner 703, 707 hvorfra det går ned kabler 701, 702 til respektive rør Cl og C2 som hvi-ler på havbunnens. I skjøteområdet er en del av havbunnen S gravd ut eller spylt bort, slik at man lettere kan komme-til rørendene, f.eks. for å foreta den nødvendige sammensveising av rørendene. Denne sammensveising kan enten skje direkte eller ved innset-ting av et forbindelsesstykke. In Figure 1, a vessel is denoted by V, while the seabed is denoted by S. The vessel V has cranes 703, 707 from which cables 701, 702 descend to respective pipes Cl and C2 which rest on the seabed. In the joint area, part of the seabed S has been excavated or washed away, so that it is easier to get to the ends of the pipes, e.g. to make the necessary welding of the pipe ends. This welding can either take place directly or by inserting a connecting piece.

En ramme 1 senkes ned mot havbunnen ved hjelp av en kabel 313 fra en heiseinnretning 314 ombord i fartøyet V. Rammen har styring ved hjelp av kablene 701 og 702 som gjennom føringen 705» 706 henholdsvis 709* 710 på rammen, nærmere bestemt på to respektive broer 103 °S 106, se også figur 3- A frame 1 is lowered towards the seabed by means of a cable 313 from a hoisting device 314 on board the vessel V. The frame is controlled by means of the cables 701 and 702 which through the guides 705» 706 respectively 709* 710 on the frame, more precisely on two respective bridges 103 °S 106, see also figure 3-

Rammen er i hovedsaken oppbygget av to langsgående bjelker 101, 102 som er forbundet med hverandre ved hjelp av fi-re broer 103, 104, 105 og 106. Det vises i denne forbindelse særlig til figur 3 som viser rammekonstruksjonen i perspektiv. The frame is mainly made up of two longitudinal beams 101, 102 which are connected to each other by means of four bridges 103, 104, 105 and 106. In this connection, reference is made in particular to figure 3 which shows the frame construction in perspective.

De to midtre broer 104, 105 har hver på toppen et løfteøre 307 henholdsvis 306, med et hull 311 henholdsvis 310. Et åk 3 er festet til løfteørene, se figur 1, slik at man derved får en stabil opphenging av rammen igjen i kabelen 313- The two middle bridges 104, 105 each have a lifting eye 307 and 306 respectively at the top, with a hole 311 and 310 respectively. A yoke 3 is attached to the lifting eyes, see figure 1, so that you thereby get a stable suspension of the frame again in the cable 313 -

Ved hver bro 103, 104, 105 og 106 er det anordnet en gripeanordning 107. Hver slik gripeanordning er utformet som en gripeklo bestående av to halvdeler 108 og 109. Disse halvde-lene er sammenhengslet ved 110, se figur 4, ved hjelp av en bolt ll6 , se figur 5. Hver slik gripeklo er opphengt i rammen ved hjelp av tre arbeidssylindre 133, 134 og 135. Sylinderdelen 136 til arbeidssylinderen 133 er ved 137 svingbart opplagret i rammen, mens densj; stempelstang 138 er svingbart forbundet med klo-delen 109 ved 139. På lignende måte er arbeidssylinderen 134 anordnet mellom den andre klohalvdel 108 og rammens motstående si-de 102. Sylinderdelen er betegnet med 140 og dens tilknytnings-punkt med rammen er betegnet med l4l. Stempestangen 142 er ved 143 svingbart tilknyttet klohalvdelen 108. I leddpunktet 110 er kloen opphengt i arbeidssylinderen 135. Dennes sylinderdel 145 er ved 147 svingbart opphengt i rammen, og stempelstangen 148 A gripping device 107 is arranged at each bridge 103, 104, 105 and 106. Each such gripping device is designed as a gripping claw consisting of two halves 108 and 109. These halves are connected at 110, see Figure 4, by means of a bolt 116, see figure 5. Each such gripping claw is suspended in the frame by means of three working cylinders 133, 134 and 135. The cylinder part 136 of the working cylinder 133 is pivotably stored in the frame at 137, while piston rod 138 is pivotally connected to the claw part 109 at 139. In a similar way, the working cylinder 134 is arranged between the second claw half part 108 and the frame's opposite side 102. The cylinder part is denoted by 140 and its connection point with the frame is denoted by l4l. The piston rod 142 is pivotally connected to the claw half part 108 at 143. At the joint point 110, the claw is suspended in the working cylinder 135. Its cylinder part 145 is pivotally suspended in the frame at 147, and the piston rod 148

er tilknyttet leddet 110. is associated with section 110.

Figur 6 viser nærmere detaljer ved opplagringen av arbeidssylinderne 133 og 134 på de respektive klohalvdeler 109 og 108. Hver klohalvdel er som man ser av figurene 5 og 6 utformet med en halvsylindrisk anleggsflate 111, men utragende forsterkende ribber 114, 115 henholdsvis 112 og 113. En bolt 139» l43 utgjør selve leddforbindelsen med de respektive stempelsten-ger 138 og 142. Hver klohalvdel har en brakett 130 henholdsvis Figure 6 shows further details of the storage of the working cylinders 133 and 134 on the respective claw halves 109 and 108. As can be seen from figures 5 and 6, each claw half is designed with a semi-cylindrical contact surface 111, but projecting reinforcing ribs 114, 115 respectively 112 and 113. A bolt 139"143 constitutes the joint connection itself with the respective piston rods 138 and 142. Each claw half has a bracket 130 respectively

129 hvormed kloen kan låses i lukket stilling ved hjelp av en skrue 131 med tilhørende mutter 132. 129 with which the claw can be locked in the closed position by means of a screw 131 with associated nut 132.

Snittet i figur 7 viser opplagringen i kloens leddpunkt. Den ene klohalvdel er forsynt med forlengelser 119 og 124 samt 120 og 125- Disse forlengelser danner en fatning for Tibbeforsterkningene 114 og 115 på den andre klohalvdel, slik The section in figure 7 shows the storage in the joint point of the claw. One claw half is provided with extensions 119 and 124 as well as 120 and 125 - These extensions form a socket for the Tibbe reinforcements 114 and 115 on the other claw half, as

det går frem av snittet i figur J. Delene har fluktende boringer for en gjennomgående bolt 116, og det innsettes fordelaktig de viste lagerforinger 117 og 118 for bolten 116. it can be seen from the section in figure J. The parts have flush bores for a through-bolt 116, and the shown bearing liners 117 and 118 for the bolt 116 are advantageously inserted.

I lukket stilling vil diameteren for åpningen- som dannes av de to halvsylindriske flater 111 i gripekloen, være noe større enn ytterdiameteren til røret. Derved muliggjøres en relativ bevegelse mellom røret og den lukkede gripeklo. In the closed position, the diameter of the opening, which is formed by the two semi-cylindrical surfaces 111 in the gripping claw, will be somewhat larger than the outer diameter of the tube. This enables a relative movement between the tube and the closed gripping claw.

Rammen 1 er fordelaktig forsynt med et antall jek-ker 424 beregnet for samvirke med havbunnen S. Disse jekkene kan eksempelvis benyttes under en avsluttende nedsenkingsbevegelse av rammen, og de kan også benyttes for stillingsregulering av rammen på havbunnen. The frame 1 is advantageously provided with a number of jacks 424 intended for cooperation with the seabed S. These jacks can, for example, be used during a final lowering movement of the frame, and they can also be used for position regulation of the frame on the seabed.

Ved bruk av innretningen senkes denne ned eksempelvis som vist i figurene 1 og 2, idet rammen da vil skreive over de to rørene Cl, C2. Deretter bringes gripeklørne til grepsamvirke med de respektive rør og man kan så ved hjelp av arbeidssylinderne manipulere rørene i ønsket utstrekning, slik at de innrettes etter behov. Ved hjelp av jekkene kan også rammens stilling endres etter behov. Om nødvendig kan rammen peles fast ved hjelp av peler P, gjennom føringer T, se figur 2. Innretningen kan betjenes av dykkere direkte på stedet, eller ved hjelp .av fjernstyring, eller en kombinasjon av begge deler. Rammen kan eventuelt også utformes for samvirke med et arbeidskammer som kan senkes ned og gi plass for dykkere som da utfører de nødven-dige arbeider i skjøtområdet. Rammen kan eventuelt også forsynes med hjul eller andre fremdriftsanordninger, slik at den kan beve-ges langs havbunnen. Rammen kan også utformes med førings- og drivinnretninger som muliggjør en bevegelse av den langs en rør-ledning. When using the device, it is lowered, for example, as shown in figures 1 and 2, as the frame will then straddle the two pipes Cl, C2. The gripping claws are then brought into gripping engagement with the respective pipes and the working cylinders can then be used to manipulate the pipes to the desired extent, so that they are aligned as required. With the help of the jacks, the position of the frame can also be changed as required. If necessary, the frame can be staked using piles P, through guides T, see figure 2. The device can be operated by divers directly on site, or by remote control, or a combination of both. The frame can optionally also be designed to cooperate with a work chamber that can be lowered and provide space for divers who then carry out the necessary work in the joint area. The frame can optionally also be provided with wheels or other propulsion devices, so that it can be moved along the seabed. The frame can also be designed with guide and drive devices which enable it to be moved along a pipeline.

Claims (3)

1. Innretning til bruk ved skjøting av rør på havbunnen, og innbefattende en stiv ramme hvori det er montert gripeorganer beregnet for samvirke med rørene, karakterisert ved at gripeorganene er i form av to par gripeklør (107) beregnet for grepsamvirke med respektive rør (Cl, C2).1. Device for use when splicing pipes on the seabed, and including a rigid frame in which gripping means designed for cooperation with the pipes are mounted, characterized in that the gripping means are in the form of two pairs of gripping claws (107) intended for gripping cooperation with respective pipes (Cl , C2). 2. Innretning ifølge krav 1, karakterisert ved at gripeklørnes åpning i grepstilling om røret er større enn rørtverrsnittet.2. Device according to claim 1, characterized in that the opening of the gripping claws in the gripping position around the pipe is larger than the pipe cross-section. 3. Innretning ifølge krav 1, karakterisert ved at gripeklørne består av to leddforbundne bakker (108, 109) som er forbundet med rammen med hver sin arbeidssylinder (133» 134), og ved at hver klo i leddpunktet (110) er forbundet med rammen med en tredje arbeidssylinder (135)-3. Device according to claim 1, characterized in that the gripping claws consist of two articulated jaws (108, 109) which are connected to the frame with each working cylinder (133»134), and in that each claw in the joint point (110) is connected to the frame with a third working cylinder (135)-
NO701/70A 1969-07-15 1970-02-27 NO134315C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84177769A 1969-07-15 1969-07-15

Publications (2)

Publication Number Publication Date
NO134315B true NO134315B (en) 1976-06-08
NO134315C NO134315C (en) 1976-09-15

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ID=25285666

Family Applications (1)

Application Number Title Priority Date Filing Date
NO701/70A NO134315C (en) 1969-07-15 1970-02-27

Country Status (5)

Country Link
US (1) US3641777A (en)
JP (1) JPS5122288B1 (en)
GB (1) GB1288691A (en)
NL (2) NL169446C (en)
NO (1) NO134315C (en)

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Also Published As

Publication number Publication date
NL169446C (en) 1982-07-16
NO134315C (en) 1976-09-15
NL7002896A (en) 1971-01-19
GB1288691A (en) 1972-09-13
NL8103641A (en) 1982-01-04
NL169446B (en) 1982-02-16
US3641777A (en) 1972-02-15
JPS5122288B1 (en) 1976-07-08

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