DK155345B - SCREW CANE CLUTCH - Google Patents
SCREW CANE CLUTCH Download PDFInfo
- Publication number
- DK155345B DK155345B DK288682A DK288682A DK155345B DK 155345 B DK155345 B DK 155345B DK 288682 A DK288682 A DK 288682A DK 288682 A DK288682 A DK 288682A DK 155345 B DK155345 B DK 155345B
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- DK
- Denmark
- Prior art keywords
- screw
- intermediate ring
- cone
- pipe coupling
- socket
- Prior art date
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Classifications
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- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/04—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
- F16L19/043—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection with additional sealing means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Pressure Members (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Bolts, Nuts, And Washers (AREA)
- Transplanting Machines (AREA)
- Gasket Seals (AREA)
Description
DK 155345 BDK 155345 B
Opfindelsen angår en skruerørkobling til etablering af rørsamling til høje og meget høje tryk. omfattende en forskruningsstuds med en fra en endeflade udgående, indvendigt kegleformet boring, der over en flade med cirkulært 5 tværsnit går over i et radialt forløbende bryst, som igen går over i en studsudboring, med en omløbermøtrik, der kan skrues på forskruningsstudsen, og med en mellemring med en første kegleflade, der i monteret tilstand ligger an mod den indvendige rørflade på en udbørtlet ende af et i omlø-10 bermøtrikken indstukket rør, hvilken første kegleflade går over i en modsat hældende, anden kegleflade, der i monteret tilstand ligger an mod forskruningsstudsens indvendigt kegleformede boring.BACKGROUND OF THE INVENTION This invention relates to a screw pipe coupling for establishing pipe joints for high and very high pressures. comprising a gland spigot with an end cone-shaped inner conical bore which, over a circular 5 cross-sectional surface, passes into a radially extending chest, which in turn becomes a stud bore, with a screw nut which can be screwed onto the gland spigot, and with an intermediate ring with a first cone surface mounted in abutment against the inner tube surface on a brushed end of a tube embedded in the nut, said first cone surface passing into an opposite inclined second cone surface abutting in the mounted state. against the inner cone-shaped bore of the screw plug.
15 En skruerørkobling af den ovenfor nævnte art kendes for eksempel fra DE offentligørelsesskrift nr. 2 623 157. For at undgå uacceptabel udvidelse af forskruningsstudsen bliver mellemringen i denne kendte skruerørkobling forsynet med en anslagsflade (et bryst), der udgår fra stedet med 20 den største diameter på den mod forskruningsstudsen vendende kegleflade, som er vinkelret på keglefladens akse, og den virker sammen med forskruningsstudsens endeflade. Til tætning af denne kendte skruerørkobling er det endvidere nødvendigt, at mellemstykket i det mindste 25 på en af sine kegleflader har udformet en ringnot, der kan optage en O-ring. Med denne kendte skruerørkobling skal man kunne opnå, at mellemstykkets aksialbevægelse og dermed rørets aksialbevægelse ved tilstramning af omløbermøtrikken begrænses således, at røret ikke skal 30 strækkes i forhold til sin nominelle længde, henholdsvis at rørets børtelkonus kan forblive uforandret. Yderligere er det hensigten med denne kendte udformning at forhindre, at mellemringen bliver skubbet ind i forskruningsstudsens konusflade således, at der sker en utilladelig udvidelse 35 af denne.15 A screw pipe coupling of the kind mentioned above is known, for example, from DE Publication No. 2 623 157. In order to avoid unacceptable extension of the screw thread, the middle ring in this known screw pipe coupling is provided with a stop surface (a chest) starting from the place with the largest 20 diameter of the cone face facing the socket, which is perpendicular to the axis of the cone surface, and it cooperates with the end face of the socket. In addition, for sealing this known screw-pipe coupling, it is necessary that the spacer has at least 25 of one of its cone surfaces formed a ring groove capable of receiving an O-ring. With this known screw pipe coupling, it should be possible to achieve that the axial movement of the spacer and thus the axial movement of the tube, by tightening the nut, is limited so that the tube does not have to be stretched relative to its nominal length or that the tube cone of the tube can remain unchanged. Further, it is the purpose of this known design to prevent the intermediate ring from being pushed into the cone surface of the screws so that an unacceptable extension 35 occurs.
I en af disse kendte udformninger er det hensigtsmæssigt,In one of these known embodiments, it is appropriate to
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2 at mellemringens endeflade ikke ligger tæt an mod forskruningsstudsens indre bryst, hvorved der opstår en ringnot, der fører til turbulensbevægelser i strømningsmediet, så strømforholdene påvirkes uhensigtsmæssigt. I alle kendte 5 udformninger af den skruerørkobling, der kendes fra det ovenfor omtalte DE offentliggørelsesskrift, forekommer y-derligere den uhensigtsmæssighed, at mellemringen skal være udformet med i det mindste en ringnot til fiksering af en O-ring for at kunne etablere en tilstrækkelig tæthed i 10 skruerørkoblingen. Ved større tæthedskrav er det hensigtsmæssigt at benytte to O-tætninger. Dette medfører yderligere forarbejdnings- og montageomkostninger. Endvidere kan en skruerørkobling med O-tætninger, som består af plast eller gummi, ikke anvendes ved højere temperaturer eller 15 til bestemte medier, som angriber O-ringsmaterialet. En yderligere ulempe ved den kendte skruerørkobling er, at mellemringen ikke er udformet med fysisk sammenhold med studsen, hvorfor et sådant forskruningsarrangement kan give besværligheder ved montagen henholdsvis demontagen. Y-20 derligere skal mellemringens holder være tilpasset såvel rørets vægtykkelse som rørets indvendige lysning.2, that the end surface of the intermediate ring does not abut close to the inner breast of the gland, thereby creating a ring groove which leads to turbulence movements in the flow medium, so that the flow conditions are adversely affected. Further, in all known embodiments of the screw-pipe coupling known from the aforementioned DE publication specification, there is the inconvenience that the intermediate ring must be formed with at least one ring groove for fixing an O-ring in order to establish a sufficient density. in the 10 screw pipe coupling. For higher density requirements, it is appropriate to use two O-seals. This incurs additional processing and assembly costs. Furthermore, a screw-pipe coupling with O-seals consisting of plastic or rubber cannot be used at higher temperatures or for certain media which attack the O-ring material. A further disadvantage of the known screw-pipe coupling is that the intermediate ring is not designed in physical relation to the plug, so such a screw-in arrangement can cause difficulties in mounting and disassembly, respectively. Y-20 moreover, the middle ring holder must be adapted to both the wall thickness of the pipe and the inner illumination of the pipe.
Fra US patentskrift nr. 2 332 354 kendes en skruerørkobling til etablering af en tryktæt forbindelse i et rør med 25 en forskruningsstuds, hvori der anvendes en mellemring, som ikke kan tabes. I skruerørkoblingen er mellemringen enten svejset sammen med forskruningsstudsen, eller den er forbundet med forskruningsstudsen ved hjælp af en deformerbar læbe, som presses ind i en i forskruningsstudsen 30 værende, bagdrejet udboring. Forud for montering er mellemringens læbe orienteret radialt i forhold til mellemringens omdrejningsakse. Den deformerbare læbe findes i tilslutning til en godstykkelsesreduktion, som findes for enden af en kegleflade, der i monteret tilstand vender mod 35 forskruningsstudsen. Forskruningsstudsens kegleflade går frem til det radialt forløbende bryst over i den bagdrejede udboring. Når mellemringen er positioneret i forskru-US Patent No. 2,332,354 discloses a screw-pipe coupling for establishing a pressure-tight connection in a pipe having a socket spigot using an intermediate ring which cannot be dropped. In the screw pipe coupling, the intermediate ring is either welded together with the socket or it is connected to the socket by means of a deformable lip which is pressed into a back-turned bore in the socket 30. Prior to mounting, the lip of the middle ring is oriented radially with respect to the axis of rotation of the middle ring. The deformable lip is adjacent to a thickness reduction found at the end of a cone surface facing the screw in the assembled state. The conical surface of the gland plug advances to the radially extending chest into the rear bore. When the middle ring is positioned in the screw
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3 ningsstudsens udboring, er det derfor nødvendigt at presse den radialt indadrettede læbe på mellemringen ind i den bagdrejede udboring ved hjælp af et værktøj. Udover den kendsgerning, at fremstillingen af en bagdrejet udboring i 5 forskruningsstudsen er vanskelig at fremstille, er det derudover nødvendigt for at presse læben ind i den bagdrejede udboring at råde over et specielt værktøj.Therefore, it is necessary to press the radially inward lip of the intermediate ring into the rear bore by means of a tool, so that the bore of the socket is bored. In addition to the fact that the manufacture of a rear bore in the screwdriver spigot is difficult to manufacture, it is also necessary to press the lip into the rear bore to have a special tool.
Fra tysk brugsmønster nr. 19 79 979 kendes en skruerørkob-10 ling, der lige som ovennævnte skruerørkoblinger omfatter en mellemring; men den i dette skrift beskrevne kobling er er såkaldt stødforskruningskobling, der ikke har metalliske, plastisk deformerbare organer, hvis overskud af materiale under den plastiske deformering under etablering af 15 en tryksikker samling mellem rørstudsen og mellemringen kan flyde ind i en dertil indrettet udsparing i mellemringen. Den i dette skrift viste aftrapning på mellemringen har en sådan dimension, at den under klemning, det vil sige i hovedsagen under elastisk deformation, kan skubbes 20 ind i den cirkelcylindriske del at studsens udboring ved hjælp af et pressetryk. Denne rørsamling kan således ikke frembringe en metallisk tætning for høje og meget høje tryk ved plastisk deformering af materiale i koblingselementerne. Den beskrevne rørkobling er udformet, så 25 man kan etablere en let demonterbar samling i en stiv rørforbindelse.From German usage pattern No. 19 79 979 there is known a screw-pipe coupling, which, like the above-mentioned screw-pipe couplings, comprises an intermediate ring; but the coupling described in this specification is a so-called shock-retaining coupling which does not have metallic, plastic deformable members, the excess of material during the plastic deformation during the establishment of a pressure-safe joint between the pipe nozzle and the intermediate ring can flow into a corresponding recess in the intermediate ring. . The stepping on the intermediate ring shown in this specification has such a dimension that it can be pushed into the circular cylindrical part of the bore by means of a pressing pressure, during clamping, that is, substantially under elastic deformation. Thus, this pipe joint cannot produce a metallic seal for high and very high pressures by plastic deformation of material in the coupling elements. The described pipe coupling is designed so that an easily removable joint can be established in a rigid pipe joint.
Det er formålet med opfindelsen at frembringe en skruerør-kobling, der med en mellemring, som ikke let tabes, mellem 30 en rørstuds med en indvendig konusflade og et rør, hvis ende er udbørtlet under frembringelse af en i hovedsagen indvendig kegleformet flade i rørendeområdet, kan etablere en rent metallisk samling, der er tæt også for høje og meget høje tryk i rørledningen, og som kan bevare sin tæthed 35 også under vilkår med rystelser eller svinginger i rørledningen, idet koblingen samtidigt skal sikre korrekt centreret montage uden specialværktøjer og mulighed for 4SUMMARY OF THE INVENTION It is an object of the invention to provide a screw-pipe coupling which, with an intermediate ring which is not easily lost, between a pipe nozzle with an inner cone surface and a pipe whose end is eroded to produce a generally internal conical surface in the pipe region, can establish a purely metallic joint that is close to high and very high pressures in the pipeline, and which can maintain its density 35 even under conditions of shaking or vibrations in the pipeline, while at the same time the coupling must ensure proper centered mounting without special tools and the possibility of 4
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strømningsmæssig hensigtsmæssig udformning af rørledningstværsnittet i skruerørkoblingens område.flow-appropriate design of the pipeline cross-section in the area of the screw-pipe coupling.
Dette formål opnås ifølge opfindelsen med en skruerørkob-5 ling af den i indledningen anførte art, såfremt denne er særegen ved, at mellemringens form ud over den anden kegleflades snævre ende omfatter et eller flere plastisk deformerbare organer, for eksempel en eller flere læber, af metallisk materiale, hvoraf i det mindste en del ligger 10 uden for en tænkt fortsættelse af den anden kegleflade og i en større afstand fra den anden kegleflades omdrejningsakse end radien i forskruningsstudsens cirkelcylindriske del, samt mindst et i forhold til den tænkte fortsættelse af den anden kegleflade forsænket område, for eksempel i 15 form af en neddrejning, der i det mindste delvis er beliggende mellem den anden kegleflade og det eller de plastisk deformerbare organer, idet dimensioneringen af det eller de forsænkede områder er valgt således, at materiale fra de deformerbare organer, som under frembringelse af tryk-20 tæt, metallisk forbindelse mellem forskruningsstudsen og mellemringen fortrænges af forskruningsstudsen, kan optages i det/de forsænkede område(r).This object is achieved according to the invention with a screw-pipe coupling of the kind stated in the preamble, if it is peculiar in that the shape of the intermediate ring, in addition to the narrow end of the other cone surface, comprises one or more plastic deformable members, for example one or more lips, of metallic material, at least a portion of which lies outside an intended continuation of the second cone surface and at a greater distance from the axis of rotation of the second cone surface than the radius of the circular cylindrical portion of the socket, and at least one relative to the intended continuation of the second cone surface. recessed area, for example in the form of a downwardly arranged at least partially between the second cone surface and the plastic deformable member (s), the sizing of the recessed region (s) being selected such that material from the deformable member (s), which, while producing pressure-tight, metallic connection between the gland plug and the intermediate ring, is preferred can be accommodated in the recessed area (s).
En udførelsesform for opfindelsen, som kan være fordelag-25 tig ved etablering af visse rørkoblinger, der skal være tætte ved meget høje tryk i rørledningen, er ejendommelig ved, at mellemringens anden kegleflade i sin snævre ende går over i et i forhold til en tænkt fortsættelse af keglefladen forsænket område i form af en inddrejning, og at 30 dette område går over i en roulletteret, cylindrisk flade, hvis radius er større end radien i forskruningsstudsens cirkelcylindriske del.An embodiment of the invention, which may be advantageous in establishing certain pipe couplings which must be close to very high pressures in the pipeline, is characterized in that the second conical surface of the intermediate ring at its narrow end changes in relation to a continuation of the cone surface recessed area in the form of a pivot, and that area passes into a roll-lined, cylindrical surface whose radius is greater than the radius of the circular cylindrical portion of the gland.
Ifølge opfindelsen er det yderligere fordelagtigt, såfremt 35 den i krav 3 indrettes med en loddering, som anbringes mellem forskruningsstudsens bryst og mellemringen.According to the invention, it is further advantageous if it is arranged in claim 3 with a solder which is placed between the chest of the screw and the intermediate ring.
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Til yderligere fuldstændiggørelse af den metalliske tætning mellem mellemringen og forskruningsstudsen er det fordelagtigt, som angivet i krav 4, at endefladen på den side af mellemringen, der i monteret stand vender mod for-5 skruningsstudsen, er udformet med sadeltagformet tværsnit.To further complete the metallic seal between the intermediate ring and the screw spigot, it is advantageous, as stated in claim 4, that the end face of the intermediate ring facing the screw spigot is mounted in a saddle-shaped cross section.
Til fremstilling af en strømningsgunstig overgang er det ifølge opfindelsen fordelagtigt, som omhandlet i krav 5, at mellemringens udboring i den ende, der i monteret stand 10 vender mod omløbermøtrikken, er udvidet trompetformet.In order to produce a flow-favorable transition, according to the invention, it is advantageous, as defined in claim 5, that the bore of the intermediate ring at the end, which in the mounted condition 10 faces the circumferential nut, is expanded trumpet-shaped.
Skruerørkoblingen ifølge opfindelsen belyses nedenfor nærmere i forbindelse med tegningen, hvor: 15 Fig. 1 viser skruerørkoblingen, der består af omløbermøtrik, mellemring og forskruningsstuds samt trykring og rørelement forud for montage og i aksialsnit og i sideprojektion, 20 Fig. 2 viser skruerørkoblingens elementer ifølge figur 1, men efter montagen,The screw pipe coupling according to the invention is illustrated below in connection with the drawing, in which: FIG. Fig. 1 shows the screw pipe coupling, which consists of screw nut, intermediate ring and gland plug as well as pressure ring and pipe element prior to assembly and in axial section and in side projection; 2 shows the screw pipe coupling elements according to figure 1, but after mounting,
Fig. 3 viser en udførelsesform for mellemringen i aksialsnit og i sideprojektion, og 25FIG. 3 shows an embodiment of the intermediate ring in axial section and in side projection; and 25
Fig. 4 viser en anden udførelsesform for mellemringen i aksialsnit og i sideprojektion.FIG. 4 shows another embodiment of the intermediate ring in axial section and in side projection.
I figur 1 er skruerørkoblingen vist før indpresningen af 30 mellemringen 1, idet den øvre halvdel af figuren gengiver et snit, og den nedre halvdel en sideprojektion. Skruerørkoblingen består af forskruningsstudsen 2, den allerede nævnte mellemring 1 og omløbermøtrikken 13 med en trykring 15 samt det rør 16, der skal forbindes, og som har en ud-35 børtling 17. Forskruningsstudsen 2 har en indvendig konusflade 6, som via en cylindrisk flade 7 går over i et radialt forløbende bryst 5, idet studsemnets 2 overflade f 6In Fig. 1, the screw-pipe coupling is shown before the pressing of the middle ring 1, the upper half of the figure showing a section and the lower half a side projection. The screw pipe coupling consists of the gland 2, the aforementioned intermediate ring 1 and the screw nut 13 with a pressure ring 15 as well as the tube 16 to be connected, which has an outrigger 17. The gland 2 has an inner cone surface 6, which via a cylindrical surface 7 passes into a radially extending chest 5, the surface of the bouncer 2 being 6
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herfra fortsætter i udboringen 18.from here continue in the bore 18.
Omløbermøtrikken 13 har et indvendigt gevind 19, som kan skrues på forskruningsstudsens 2 udvendige gevind 20. Det 5 indvendige gevind 19 i omløbermøtrikken 13 afsluttes med en cylindrisk del 22, som afsluttes ved overgang i et radialt forløbende bryst. I monteret tilstand ligger dette bryst 21 an mod et bryst 23 på trykringen 15, som på sin modstående side har en kegleformet flade 24, der ligger 10 mod en udbørtlede yderflade på røret 16.The nut of the nut 13 has an internal thread 19 which can be screwed onto the external thread 20. The 5 internal thread 19 of the nut 13 is terminated by a cylindrical portion 22 which is terminated by transition into a radially extending chest. In the mounted state, this breast 21 abuts against a breast 23 on the pressure ring 15, which on its opposite side has a cone-shaped surface 24, which lies 10 against an eroded outer surface of the tube 16.
Mellemringen 1 har på sin ende, der i monteret tilstand vender mod forskruningsstudsen 2, en kegleflade 3 med en tætningslæbe 4, hvis radius (på figur 1) er større end 15 forskruningsstudsens 2 cylindriske flades 7 radius rx. Den cylindriske flade 7 findes mellem det radialt forløbende bryst 5 og den kegleformede flade 6. Foran tætningslæben 4 findes en inddrejning 9, som er dimensioneret således, at tætningslæben 4 under sin deformering ved montagen kan 20 presses ind i inddrejningen 9. Endefladen 12 (se figur 3) på den side af mellemringen 1, som i monteret tilstand vender mod forskruningsstudsen 2, har en omtrent sadeltagformet udformning. Mellemringens 1 boring er på den i monteret tilstand mod omløbermøtrikken 13 vendende ende 14 25 udformet med en trompetagtig udvidelse.The intermediate ring 1 has on its end, which in a mounted state, faces the gland 2, a cone surface 3 with a sealing lip 4, the radius of which (in Figure 1) is greater than the radius rx of the gland 2 of the gland 2. The cylindrical surface 7 is located between the radially extending chest 5 and the cone-shaped surface 6. In front of the sealing lip 4 there is a recess 9, which is dimensioned so that the sealing lip 4 during its deformation during assembly 20 can be pressed into the recess 9. The end surface 12 (see Fig. 3) on the side of the intermediate ring 1, which in the mounted state faces the socket nozzle 2, has a roughly saddle-roof shape. The bore of the intermediate ring 1 is formed with a trumpet-like extension on the end 14 25 facing the circumferential nut 13 when mounted.
Figur 2 viser de i figur 1 viste elementer i skruerørkob-lingens monterede tilstand. Omløbermøtrikken 13 er med sit indvendige gevind 19 skruet på forskruningsstudsens 2 ud-30 vendige gevind 20. Den med stiplet linie viste tætningslæbe 4 på mellemringen 1 er under montageprocessen blevet presset ind i inddrejningen 9 således, at der dette sted mellem mellemringen 1 og forskruningsstudsen 2 er blevet en metallisk tætning. Under montageprocessen er herudover 35 den sadeltagformet udformede endeflade på mellemringen blevet presset sammen med forskruningsstudsens 2 bryst 5 således, at der her er frembragt en metallisk tætning, me- 7Fig. 2 shows the elements shown in Fig. 1 in the mounted state of the screw pipe coupling. The nut 13 is screwed with its internal thread 19 on the external threads of the screw spigot 2. The dotted lip 4 shown on the intermediate ring 1 has been pressed into the housing 9 during the mounting process so that this place between the intermediate ring 1 and the screw spigot 2 has become a metallic seal. In addition, during the assembly process, the saddle roof shaped end surface of the intermediate ring has been pressed together with the chest 5 of the gland 2 so that a metallic seal is produced here,
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dens den deformerede tætningslæbe 4 danner en aksialt forløbende, metallisk tætning. I monteret tilstand presses mellemringens 1 kegleflade 25 mod den udbørtlede inderfla-de 17 på røret 16, som på sin side via trykringen 15 pres-5 ses mod omløbermøtrikkens bryst.its deformed sealing lip 4 forms an axially extending metallic seal. In the mounted state, the cone surface 25 of the intermediate ring 1 is pressed against the eroded inner surface 17 of the pipe 16, which in turn is pressed via the pressure ring 15 against the chest of the nut.
Sammenpresningen og deformeringen af mellemringens 1 tætningslæbe 4 med cylinderfladen 7 i forskruningsstudsen 2 frembringer ikke kun en metallisk tætning overfor høje og 10 de højeste tryk, men sørger også for, at mellemringen 1 fysisk forbindes med forskruningsstudsen 2, således at den ikke kan tabes. O-ringpakninger af plast eller gummi eller pakninger af tilsvarende type er derfor ikke nødvendige, hvorfor skruerørkoblingen egner sig særdeles godt til høje 15 temperaturer og aggresive medier, hvor man ikke kan anvende plast eller gummi. Med den aksiale metalliske forbindelse, som yderligere er udbygget med den metalliske tætning af den sadeltagformet udformede endeflade, som ligger an mod brystet 5, etableres en ryste- og vibrationssikker 20 forbindelse. Mellemringens 1 kegleflade 3, som eksempelvis er udformet som en 24°-kegle, forhindrer yderligere, at forskruningskonusen 6 indsnøres under montagen. En udbuk-ning eller en utilsigtet deformering er derfor udelukket. Keglefladerne 3 og 25 på mellemringen 1 garanterer yderli-25 gere en centreret montage. Den trompetformede udvidelse 14 af mellemringens 1 boring på den i monteret tilstand mod omløbermøtrikken 13 vendende ende bevirker en strømningsmæssigt hensigtsmæssig overgang, således at der i samlingen ikke dannes turbulens eller samles snavs.The compression and deformation of the sealing lip 4 of the intermediate ring 1 with the cylinder surface 7 of the gland 2 not only produces a metallic seal against the high and 10 the highest pressures, but also ensures that the middle ring 1 is physically connected to the gland 2 so that it cannot be dropped. Therefore, plastic or rubber o-ring gaskets or gaskets of similar type are not needed, which is why the screw-pipe coupling is particularly well suited to high temperatures and aggressive media where plastic or rubber cannot be used. With the axial metallic connection further expanded with the metallic seal of the saddle-roof shaped end surface abutting the chest 5, a shake and vibration-proof connection is established. The cone surface 3 of the intermediate ring 1, which is formed, for example, as a 24 ° cone, further prevents the screw cone 6 from being entangled during assembly. A deflection or unintentional deformation is therefore excluded. The cone surfaces 3 and 25 of the intermediate ring 1 further guarantee a centered mounting. The trumpet-shaped extension 14 of the bore of the intermediate ring 1 on the end facing the circumferential nut 13 causes a flow-appropriate transition so that no turbulence or dirt is collected in the joint.
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Figur 3 viser af hensyn til tydeligheden mellemringen i en ubetydeligt større målestok. Betegnelserne for de enkelte elementer svarer til betegnelserne i figurerne 1 og 2.Figure 3 shows, for reasons of clarity, the middle ring on a significantly larger scale. The designations for the individual elements correspond to the designations in Figures 1 and 2.
35 Figur 4 viser en anden udførelsesform for opfindelsen med en mellemring 11, som på den ende, som i monteret tilstand vender mod forskruningsstudsens 2 konusflade 6, har enFigure 4 shows another embodiment of the invention with an intermediate ring 11 which, at the end which faces in the mounted state towards the cone surface 6 of the screwing plug 2, has a
DK 155345 BDK 155345 B
8 kegleflade 3 og en langs mellemringens omkreds aksialt forløbende roullettering 10, der har frembragt flere tætningslæber. Mellemringen 11 er presset sammen med forskruningsstudsen 2 over tætningslæberne eller roulletteringen 5 10, således at der mellem den cirkulær-cylindriske flade 7 i forskruningsstudsen 2 og roulletteringsfladen 10 opstår aksialt forløbende, metalliske tætninger. Radius R3 for enden af mellemringen 11 er i og over hele roul letteringens 10 område større end radius rx i forskruningsstudsens 10 2 cirkulær-cylindriske flade 7, som findes mellem det ra dialt forløbende bryst 5 og keglefladen 6, således at der etableres en hertil svarende sammenpresning.8 a conical surface 3 and a roller ring 10 extending axially extending along the circumference of the middle ring, which has produced several sealing lips. The intermediate ring 11 is pressed together with the gland spigots 2 over the sealing lips or roller ring 5 10, so that axially extending metallic seals are formed between the circular-cylindrical surface 7 of the gland spigots 2 and the gutter surface 10. The radius R3 at the end of the intermediate ring 11 is greater in and over the entire area of the roll relief 10 than the radius rx of the circular-cylindrical surface 7 of the screw nozzle 10, which is located between the radially extending chest 5 and the cone surface 6, thus establishing a corresponding compression.
Forud for montagen indlægges der en loddering 26 på for-15 skruningsstudsens 2 bryst 5 således, at eventuelle, i samlingen værende rum mellem de enkelte tætningslæber eller roul letteringsspidser ved hjælp af kapil airvirkningen fyldes med loddemateriale under lodningen. Også i denne udførelsesform kan mellemringens 11 endeflade udformes noget 20 sadeltagformet, således at der under montagen etableres en radial, metallisk tætning med forskruningsstudsens 2 bryst 5 ved sammenpresningen.Prior to mounting, a solder 26 is inserted on the chest 5 of the pre-15 nozzle 2 so that any space in the assembly between the individual sealing lips or roll lettering tips by means of the capillary air effect is filled with solder material during soldering. Also in this embodiment, the end surface of the intermediate ring 11 can be formed somewhat 20 saddle-roof shaped, so that during installation a radial, metallic seal is established with the chest 5 of the screws 2 at the compression.
De viste udførelsesformer for mellemringen 1 eller 11 kan 25 allerede på produktionsstedet presses sammen med forskruningsstudsen 2, hvorved mellemringen ikke kan mistes uden samtidig bortkastning af studsen 2, således at man på montagestedet kun har brug for et studselement til etablering af skruerørkoblingen.The illustrated embodiments of the intermediate ring 1 or 11 can already be pressed together at the production site with the socket 2, whereby the intermediate ring can not be lost without simultaneous throwing of the socket 2, so that at the installation site only one stud element is needed to establish the screw pipe coupling.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3130922A DE3130922C1 (en) | 1981-08-05 | 1981-08-05 | Screw system |
| DE3130922 | 1981-08-05 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK288682A DK288682A (en) | 1983-02-06 |
| DK155345B true DK155345B (en) | 1989-03-28 |
| DK155345C DK155345C (en) | 1989-10-23 |
Family
ID=6138605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK288682A DK155345C (en) | 1981-08-05 | 1982-06-28 | SCREW CANE CLUTCH |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS5828086A (en) |
| AT (1) | AT386062B (en) |
| BE (1) | BE893026A (en) |
| BR (1) | BR8204589A (en) |
| CH (1) | CH657436A5 (en) |
| DE (1) | DE3130922C1 (en) |
| DK (1) | DK155345C (en) |
| ES (1) | ES274655Y (en) |
| FI (1) | FI70079C (en) |
| FR (1) | FR2511114B1 (en) |
| GB (1) | GB2103743B (en) |
| IT (2) | IT8209486A1 (en) |
| NL (1) | NL8201235A (en) |
| NO (1) | NO157950C (en) |
| SE (1) | SE450522B (en) |
| ZA (1) | ZA822531B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60128086U (en) * | 1984-02-08 | 1985-08-28 | 豊田工機株式会社 | Fluid pipe connection device |
| JPS6387388U (en) * | 1986-11-28 | 1988-06-07 | ||
| JPH088380Y2 (en) * | 1991-12-09 | 1996-03-06 | 日本ピラー工業株式会社 | Pipe joint structure |
| IT201600116968A1 (en) * | 2016-11-18 | 2018-05-18 | Enea Agenzia Naz Per Le Nuove Tecnologie Lenergia E Lo Sviluppo Economico Sostenibile | DEVICE FOR JUNCTION COMPRESSION OF THIN WALL PIPES |
| CN110030443A (en) * | 2019-05-17 | 2019-07-19 | 杭州科百特过滤器材有限公司 | Sealing duct connector |
| JP2022017782A (en) * | 2020-07-14 | 2022-01-26 | 日本ピラー工業株式会社 | Inner ring and pipe joint |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7116986U (en) * | 1971-07-29 | Ati Gmbh | Pipe union for high pressure lines | |
| US821564A (en) * | 1905-09-13 | 1906-05-22 | Modern Improvements Mfg Co | Coupling for pipes and tubes. |
| US2011433A (en) * | 1933-03-25 | 1935-08-13 | Michigan Steel Casting Company | Pipe coupling |
| US2332354A (en) * | 1941-10-03 | 1943-10-19 | Weatherhead Co | Tube coupling and method of making same |
| US2529534A (en) * | 1946-03-20 | 1950-11-14 | Weatherhead Co | Adapter |
| DE816178C (en) * | 1950-04-01 | 1951-10-08 | Ermeto G M B H | Insert sleeve for reinforcing pipe ends |
| CH498332A (en) * | 1969-10-24 | 1970-10-31 | Fischer Ag Georg | Pipe connection |
| DE2244862B1 (en) * | 1972-09-13 | 1973-12-06 | Jean Walterscheid Gmbh, 5204 Lohmar | SCREW CONNECTION |
| DE2623157A1 (en) * | 1976-05-22 | 1977-11-24 | Walterscheid Gmbh Jean | SCREW CONNECTION |
| DE2816132A1 (en) * | 1978-04-14 | 1979-10-25 | Walterscheid Gmbh Jean | SCREW CONNECTION |
-
1981
- 1981-08-05 DE DE3130922A patent/DE3130922C1/en not_active Expired
-
1982
- 1982-03-25 GB GB08208833A patent/GB2103743B/en not_active Expired
- 1982-03-25 NL NL8201235A patent/NL8201235A/en not_active Application Discontinuation
- 1982-04-09 AT AT0142982A patent/AT386062B/en not_active IP Right Cessation
- 1982-04-14 ZA ZA822531A patent/ZA822531B/en unknown
- 1982-04-29 BE BE0/207968A patent/BE893026A/en not_active IP Right Cessation
- 1982-05-14 FR FR8208420A patent/FR2511114B1/en not_active Expired
- 1982-05-26 CH CH3227/82A patent/CH657436A5/en not_active IP Right Cessation
- 1982-05-27 SE SE8203309A patent/SE450522B/en not_active IP Right Cessation
- 1982-06-10 FI FI822064A patent/FI70079C/en not_active IP Right Cessation
- 1982-06-28 DK DK288682A patent/DK155345C/en not_active IP Right Cessation
- 1982-07-27 JP JP57129719A patent/JPS5828086A/en active Granted
- 1982-08-03 NO NO822655A patent/NO157950C/en unknown
- 1982-08-04 IT IT1982A09486A patent/IT8209486A1/en unknown
- 1982-08-04 BR BR8204589A patent/BR8204589A/en unknown
- 1982-08-04 IT IT09486/82A patent/IT1192489B/en active
- 1982-08-04 ES ES1982274655U patent/ES274655Y/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE893026A (en) | 1982-08-16 |
| ZA822531B (en) | 1983-02-23 |
| NO157950B (en) | 1988-03-07 |
| CH657436A5 (en) | 1986-08-29 |
| NL8201235A (en) | 1983-03-01 |
| NO157950C (en) | 1988-06-15 |
| FR2511114A1 (en) | 1983-02-11 |
| DE3130922C1 (en) | 1982-12-09 |
| IT1192489B (en) | 1988-04-13 |
| DK155345C (en) | 1989-10-23 |
| SE8203309L (en) | 1983-02-06 |
| IT8209486A1 (en) | 1984-02-04 |
| FI70079B (en) | 1986-01-31 |
| IT8209486A0 (en) | 1982-08-04 |
| ES274655U (en) | 1984-10-16 |
| ES274655Y (en) | 1985-04-16 |
| JPS6110711B2 (en) | 1986-03-31 |
| BR8204589A (en) | 1983-07-26 |
| DK288682A (en) | 1983-02-06 |
| JPS5828086A (en) | 1983-02-18 |
| FR2511114B1 (en) | 1986-11-21 |
| GB2103743A (en) | 1983-02-23 |
| FI822064A0 (en) | 1982-06-10 |
| GB2103743B (en) | 1985-02-06 |
| NO822655L (en) | 1983-02-07 |
| SE450522B (en) | 1987-06-29 |
| AT386062B (en) | 1988-06-27 |
| FI70079C (en) | 1986-09-12 |
| ATA142982A (en) | 1987-11-15 |
| FI822064L (en) | 1983-02-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |