NO325914B1 - Device for attachment - Google Patents

Device for attachment Download PDF

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Publication number
NO325914B1
NO325914B1 NO20052078A NO20052078A NO325914B1 NO 325914 B1 NO325914 B1 NO 325914B1 NO 20052078 A NO20052078 A NO 20052078A NO 20052078 A NO20052078 A NO 20052078A NO 325914 B1 NO325914 B1 NO 325914B1
Authority
NO
Norway
Prior art keywords
sleeve
recess
cylindrical
cylindrical body
fastening
Prior art date
Application number
NO20052078A
Other languages
Norwegian (no)
Other versions
NO20052078L (en
NO20052078D0 (en
Inventor
Rune Freyer
Original Assignee
Easy Well Solutions As
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 Easy Well Solutions As filed Critical Easy Well Solutions As
Priority to NO20052078A priority Critical patent/NO325914B1/en
Publication of NO20052078D0 publication Critical patent/NO20052078D0/en
Priority to PCT/NO2006/000158 priority patent/WO2006115417A1/en
Publication of NO20052078L publication Critical patent/NO20052078L/en
Publication of NO325914B1 publication Critical patent/NO325914B1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/16Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars
    • F16L13/161Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars the pipe or collar being deformed by crimping or rolling

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

Anordning ved festering (1) hvor festeringen (1) omkranser et sylindrisk legeme (4), og hvor det sylindriske legemet (4) er forsynt med i det minste én utsparing (6) og festeringen (1) er forsynt med i det minste én til utsparingen (6) korresponderende vulst (8), idet festeringen (1) er innrettet til å kunne krympes radielt slik at vulsten (8) griper inn i utsparingen (6).Device for fastening (1) wherein the fastener (1) surrounds a cylindrical body (4) and wherein the cylindrical body (4) is provided with at least one recess (6) and the fastener (1) is provided with at least one bead (8) corresponding to the recess (6), the fixing ring (1) being arranged to be radially shrinkable so that the bead (8) engages the recess (6).

Description

Denne oppfinnelsen vedrører en festering. Nærmere bestemt dreier det seg om en festering som omkransende et sylindrisk legeme er forskyvbar langs legemet inntil den krympes for å kunne gripe i en utsparing i det sylindriske legemet. Nærmere bestemt dreier det seg om en anordning for å danne en forbindelse mellom et sylinderformet første legeme og et langstrakt hult andre legeme, der det første legemet på sin ytre overflate innbefatter i det minste én omkransende utsparing. This invention relates to a fastening ring. More specifically, it concerns a fastening ring which surrounds a cylindrical body and is displaceable along the body until it is shrunk to be able to engage in a recess in the cylindrical body. More specifically, it concerns a device for forming a connection between a cylindrical first body and an elongated hollow second body, where the first body includes on its outer surface at least one encircling recess.

Under monteringsarbeid er det relativt ofte nødvendig å kunne forskyve en festering som omkranser for eksempel et rør eller en aksling langs røret eller akslingen og deretter kunne forbinde festeringen til dette sylindriske legemet med tilstrekkelig styrke slik at aksialforskyvning mellom de to legemer forhindres. During assembly work, it is relatively often necessary to be able to move a fastening ring that encircles, for example, a pipe or a shaft along the pipe or shaft and then be able to connect the fastening ring to this cylindrical body with sufficient strength so that axial displacement between the two bodies is prevented.

Ifølge kjent teknikk kan legemene forbindes fast ved hjelp av for eksempel sveising. Når det dreier seg om høyverdige materialer i sterkt påkjente konstruksjoner må sveisoperasjonen utføres i henhold til relativt kompliserte prosedyrer med tilhørende kontrollprosedyrer. I noen tilfeller er materialet i det ene eller begge legemer ikke sveisbart. According to known technology, the bodies can be firmly connected using, for example, welding. When it comes to high-quality materials in highly stressed constructions, the welding operation must be carried out according to relatively complicated procedures with associated control procedures. In some cases, the material in one or both bodies is not weldable.

En annen kjent fremgangsmåte er å feste festeringen til det sylindriske legemet ved hjelp av settskruer eller lignende. Typisk er settskruene anbrakt i gjengede boringer i festeringen og skrues radialt inn i det sylindriske legemet. Det har vist seg vanskelig å oppnå tilstrekkelig høye og nøyaktige skyvekraftverdier ved hjelp av denne festemetode. Another known method is to attach the fastening ring to the cylindrical body by means of set screws or the like. Typically, the set screws are placed in threaded bores in the fastening ring and are screwed radially into the cylindrical body. It has proven difficult to achieve sufficiently high and accurate thrust values using this attachment method.

Festeringen kan også krympes til det sylindriske legemet ved hjelp av oppvarming og avkjøling. Grunnet for eksempel et rørs dimensjonsmessige toleranse viser det seg vanskelig å oppnå tilstrekkelig repeterbar forspenning mellom legemene ved hjelp av krymping. The fastening ring can also be shrunk to the cylindrical body by means of heating and cooling. Due to, for example, the dimensional tolerance of a pipe, it proves difficult to achieve a sufficiently repeatable bias between the bodies by means of shrinking.

US 4 605 156 og US 3 668 754 viser presskrympede festeringer der hann- og hunndelen har motstående serrateringer. US 4 632 406 er en illustrasjon av den kjente teknikk. US 5 340 163 og US 4 076 280 viser begge eksempler på rørkoplinger. US 4 605 156 and US 3 668 754 show press-shrunk fasteners where the male and female parts have opposing serrations. US 4,632,406 is an illustration of the prior art. US 5 340 163 and US 4 076 280 both show examples of pipe connections.

Oppfinnelsen har til formål å avhjelpe eller redusere i det minste én av ulempene ved kjent teknikk. The purpose of the invention is to remedy or reduce at least one of the disadvantages of known technology.

Formålet oppnås i henhold til oppfinnelsen ved en anordning for å danne en forbindelse mellom et sylinderformet første legeme og et langstrakt hult andre legeme, der det første legemet på sin ytre overflate innbefatter i det minste én omkransende utsparing, kjennetegnet ved en sylinderformet hylse forbundet med en ende av det andre legemet og på sin indre overflate innbefattende minst ett omkransende fremspring for inngripen med utsparingen når det første legemet i det minste delvis er innført i hylsen og hylsen bevirkes til radielt å deformeres plastisk inn i en inngripen med det første legemet. The purpose is achieved according to the invention by a device for forming a connection between a cylindrical first body and an elongated hollow second body, where the first body on its outer surface includes at least one surrounding recess, characterized by a cylindrical sleeve connected to a end of the second body and on its inner surface including at least one encircling projection for engagement with the recess when the first body is at least partially inserted into the sleeve and the sleeve is caused to radially plastically deform into engagement with the first body.

Ytterligere trekk ved anordningen i følge oppfinnelsen er angitt i de etterfølgende uselvstendige patentkrav. Further features of the device according to the invention are specified in the subsequent non-independent patent claims.

Forbindelsen mellom det andre legemet og hylsen innbefatter med fordel et sylindrisk segment med en veggtykkelse som er mindre enn hylsens og det andre legemets respektive veggtykkelser. The connection between the second body and the sleeve advantageously includes a cylindrical segment with a wall thickness that is smaller than the respective wall thicknesses of the sleeve and the second body.

Det dannes et ringrom mellom det første legemets ytre overflate og det andre legemets indre overflate når det første legemet er innført forbi hylsen og i det minste delvis inn i den andre legemet. An annular space is formed between the outer surface of the first body and the inner surface of the second body when the first body is introduced past the sleeve and at least partially into the second body.

I en utførelsesform innbefatter den minst ene utsparingen gjenger som omkranser det første legemet. In one embodiment, the at least one recess includes threads that encircle the first body.

I en utførelsesform utgjør hylsen en integrert del av det andre legemet. In one embodiment, the sleeve forms an integral part of the second body.

Det første legemet kan innbefatte et rør. Det første legemet kan innbefatte en aksel. The first body may include a tube. The first body may include a shaft.

En festering som omkranser et sylindrisk legeme er forskyvbar langs det sylindriske legemet. Det sylindriske legemet er forsynt med i det minste én utsparing, og festeringen er forsynt med i det minste én korresponderende vulst. Når festeringen er posisjonert slik at vulsten befinner seg over utsparingen, krympes festeringen deformerbart radielt til vulsten griper inn i utsparingen. A fastening ring encircling a cylindrical body is displaceable along the cylindrical body. The cylindrical body is provided with at least one recess, and the fastening ring is provided with at least one corresponding bead. When the attachment ring is positioned so that the bead is located above the recess, the attachment ring deformably shrinks radially until the bead engages in the recess.

I sin virksomme krympede stilling befinner vulsten seg i det minste delvis i utsparingen og låser derved festeringen mot å kunne forskyve seg langs det sylindriske legemet. Det er fordelaktig et utsparingen omkranser det sylindriske legemet for å lette posisjoneringen av festeringen, idet vulsten ved denne utførelsesform vil treffe utsparingen uavhengig av sin rotasjonsmessige stilling relativt det sylindriske legemet. In its effective shrunken position, the bead is at least partially in the recess and thereby locks the fastening ring against being able to displace along the cylindrical body. It is advantageous if the recess encircles the cylindrical body to facilitate the positioning of the fastening ring, since in this embodiment the bead will hit the recess regardless of its rotational position relative to the cylindrical body.

Vulsten omkranser med fordel det sylindriske legemet for å oppnå størst mulig styrke i innfestningen. The bead advantageously encircles the cylindrical body in order to achieve the greatest possible strength in the attachment.

Festeringen kan utgjøre en del av et hullegeme som rager over en lengde av det sylindriske legemet, idet hullegemet kan være forsynt med flere festeringer for eksempel for å forbinde flere sylindriske legemer. The fastening ring can form part of a hollow body that projects over a length of the cylindrical body, the hollow body can be provided with several fastenings, for example to connect several cylindrical bodies.

I det etterfølgende beskrives et ikke-begrensende eksempel på en foretrukket utførelsesform som er anskueliggjort på medfølgende tegninger, hvor: Fig. 1 viser en festering som er under forskyving på et rør; In what follows, a non-limiting example of a preferred embodiment is described which is illustrated in the accompanying drawings, where: Fig. 1 shows a fastening ring which is being displaced on a pipe;

Fig. 2 viser festeringen anbrakt i posisjon før krymping; og Fig. 2 shows the fastening ring placed in position before shrinking; and

Fig. 3 viser festeringen etter at den er krympet radielt inn mot røret. Fig. 3 shows the fastening ring after it has been shrunk radially towards the pipe.

På tegningene betegner henvisningstallet 1 en festehylse som utgjør en del av et hullegeme 2 og som i sin maskinelte tilstand er omkransende forskyvbar over et sylindrisk legeme 4, her i form av et rør. In the drawings, reference number 1 denotes a fastening sleeve which forms part of a hollow body 2 and which, in its machine-knitted state, is displaceable encircling a cylindrical body 4, here in the form of a tube.

Røret 4 er utvendig forsynt med et antall omkransende utsparinger 6, for eksempel i form av gjenger. The tube 4 is externally provided with a number of encircling recesses 6, for example in the form of threads.

Festehylsen 1 er innvendig forsynt med et antall omkranssende vulster 8 som komplementært passer i utsparingene 6. The fastening sleeve 1 is internally provided with a number of encircling beads 8 which complementarily fit into the recesses 6.

Antall utsparinger 6 i røret 4 kan være betydelig større enn antallet vulster 8 i festehylsen 1. En slik utforming vil kunne muliggjøre festing av festehylsen 1 i en av flere posisjoner langs røret 4. The number of recesses 6 in the pipe 4 can be significantly greater than the number of beads 8 in the fastening sleeve 1. Such a design would enable fastening of the fastening sleeve 1 in one of several positions along the pipe 4.

Når festehylsen 1 er anbrakt i ønsket stilling langs røret 4, krympes festehylsen 1 ved hjelp av radielle krefter, for eksempel ved hjelp av hydraulikk, inntil vulstene 8 er i inngrep med utsparingene 6. Grunnet festehylsens 1 radielle plastiske deformasjon, forblir vulstene 8 i det minste delvis i utsparingene 6 også etter at de radielle krefter er fjernet. When the fastening sleeve 1 is placed in the desired position along the pipe 4, the fastening sleeve 1 is shrunk by means of radial forces, for example by means of hydraulics, until the beads 8 engage with the recesses 6. Due to the radial plastic deformation of the fastening sleeve 1, the beads 8 remain in it least partially in the recesses 6 also after the radial forces have been removed.

Claims (7)

1. Anordning for å danne en forbindelse mellom et sylinderformet første legeme (4) og et langstrakt hult andre legeme (2), der det første legemet (4) på sin ytre overflate innbefatter i det minste én omkransende utsparing (6) karakterisert ved en sylinderformet hylse (1) forbundet med en ende av det andre legemet (2) og på sin indre overflate innbefattende minst ett omkransende fremspring (8) for inngripen med utsparingen (6) når det første legemet (4) i det minste delvis er innført i hylsen (1) og hylsen (1) bevirkes til radielt å deformeres plastisk inn i en inngripen med det første legemet (4).1. Device for forming a connection between a cylindrical first body (4) and an elongated hollow second body (2), where the first body (4) includes on its outer surface at least one surrounding recess (6) characterized by a cylindrical sleeve (1) connected to one end of the second body (2) and on its inner surface including at least one encircling projection (8) for engagement with the recess (6) when the first body (4) is at least partially inserted into the sleeve ( 1) and the sleeve (1) is caused to radially deform plastically into an engagement with the first body (4). 2. Anordning ifølge krav 1, karakterisert ved at forbindelsen mellom det andre legemet (2) og hylsen (1) innbefatter et sylindrisk segment med en veggtykkelse som er mindre enn hylsens (1) og det andre legemets (2) respektive veggtykkelser.2. Device according to claim 1, characterized in that the connection between the second body (2) and the sleeve (1) includes a cylindrical segment with a wall thickness that is smaller than the respective wall thicknesses of the sleeve (1) and the second body (2). 3. Anordning ifølge krav 1, karakterisert ved at det dannes et ringrom mellom det første legemets (4) ytre overflate og det andre legemets (2) indre overflate når det første legemet (4) er innført forbi hylsen (1) og i det minste delvis inn i den andre legemet (2).3. Device according to claim 1, characterized in that an annular space is formed between the outer surface of the first body (4) and the inner surface of the second body (2) when the first body (4) is introduced past the sleeve (1) and at least partially into in the other body (2). 4. Anordning ifølge krav 1, karakterisert ved at den minst ene utsparingen (6) innbefatter gjenger som omkranser det første legemet (4).4. Device according to claim 1, characterized in that the at least one recess (6) includes threads that encircle the first body (4). 5. Anordning ifølge krav 1, karakterisert ved at hylsen (1) utgjør en integrert del av det andre legemet (2).5. Device according to claim 1, characterized in that the sleeve (1) forms an integral part of the second body (2). 6. Anordning ifølge krav 1, karakterisert ved at det første legemet (4) innbefatter et rør.6. Device according to claim 1, characterized in that the first body (4) includes a pipe. 7. Anordning ifølge krav 1, karakterisert ved at det første legemet (4) innbefatter en aksel.7. Device according to claim 1, characterized in that the first body (4) includes an axle.
NO20052078A 2005-04-28 2005-04-28 Device for attachment NO325914B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO20052078A NO325914B1 (en) 2005-04-28 2005-04-28 Device for attachment
PCT/NO2006/000158 WO2006115417A1 (en) 2005-04-28 2006-04-27 A ring fastener device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20052078A NO325914B1 (en) 2005-04-28 2005-04-28 Device for attachment

Publications (3)

Publication Number Publication Date
NO20052078D0 NO20052078D0 (en) 2005-04-28
NO20052078L NO20052078L (en) 2006-10-30
NO325914B1 true NO325914B1 (en) 2008-08-18

Family

ID=35276294

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20052078A NO325914B1 (en) 2005-04-28 2005-04-28 Device for attachment

Country Status (2)

Country Link
NO (1) NO325914B1 (en)
WO (1) WO2006115417A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2459457B (en) 2008-04-22 2012-05-09 Swelltec Ltd Downhole apparatus and method
DE102013108201A1 (en) 2013-07-31 2015-02-05 Viega Gmbh & Co. Kg Press fitting for threaded connection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1542847A (en) * 1976-04-26 1979-03-28 Curran T Pipe couplings
WO1978000004A1 (en) * 1977-06-02 1978-12-07 Advanced Chem Equip Ltd Pipes and couplings and method of coupling pipes
DE29907405U1 (en) * 1999-04-29 1999-07-22 Kermi Gmbh, 94447 Plattling Connection element for metal pipelines

Also Published As

Publication number Publication date
NO20052078L (en) 2006-10-30
NO20052078D0 (en) 2005-04-28
WO2006115417A1 (en) 2006-11-02

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