WO1993004307A1 - Clasp closure - Google Patents

Clasp closure Download PDF

Info

Publication number
WO1993004307A1
WO1993004307A1 PCT/EP1992/001845 EP9201845W WO9304307A1 WO 1993004307 A1 WO1993004307 A1 WO 1993004307A1 EP 9201845 W EP9201845 W EP 9201845W WO 9304307 A1 WO9304307 A1 WO 9304307A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamp
tie rod
clasp
pressure plate
clasp closure
Prior art date
Application number
PCT/EP1992/001845
Other languages
German (de)
French (fr)
Inventor
Roland Hourticolon
Jürgen LATZEL
Original Assignee
Henkel Kommanditgesellschaft Auf Aktien
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 Henkel Kommanditgesellschaft Auf Aktien filed Critical Henkel Kommanditgesellschaft Auf Aktien
Publication of WO1993004307A1 publication Critical patent/WO1993004307A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/03—Pressure vessels, or vacuum vessels, having closure members or seals specially adapted therefor
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J13/00—Covers or similar closure members for pressure vessels in general
    • F16J13/02—Detachable closure members; Means for tightening closures
    • F16J13/06—Detachable closure members; Means for tightening closures attached only by clamps along the circumference
    • F16J13/065—Detachable closure members; Means for tightening closures attached only by clamps along the circumference the clamp comprising a ring encircling the flange

Definitions

  • the invention relates to a clamp closure with a hydraulic tensioning device and a tie rod which is fastened to a first end of the multi-part annular clamp and is guided through the second clamp end, the clamp being held under tension by a nut attached to the tie rod after the closure .
  • the clamp closure is suitable for connecting pipes, for connecting an extruder head to an extruder, for attaching a reactor cover, in particular for high-pressure reactors, and for many other detachable connections.
  • Lids of high pressure reactors are usually made with three parts Clamps releasably connected to the reactor vessel.
  • the inside of each clamp part has a trapezoidal profile, into which the wedge-shaped outer flanges of the reactor vessel and the cover engage. When the clamp is pressed together, the lid edge and the edge of the reactor vessel are therefore pressed firmly against one another.
  • the left-right threaded spindle as a movement thread, only has to overcome the breakaway forces when the clamp is opened.
  • the actual closing process is effected by means of a screw bolt which is attached in front of the movement spindle and is preloaded hydraulically.
  • the clamp cannot be opened hydraulically.
  • Another disadvantage is that when opening the movement thread tends to self-locking.
  • the invention has for its object to provide a clamp closure of the type mentioned, when closing and opening the threaded tie rod is not under high tension.
  • the clamping device as a double-acting hydraulic cylinder is designed with a piston rod to which the tie rod is detachably connected and that the cylinder tube of the hydraulic cylinder is supported on the second clamp end.
  • the forces required when opening and closing the clamp are applied by the hydraulic cylinder without the tie rod having to be rotated in the thread during this process.
  • the hydraulic system is used both for opening and for closing the clip. The entire lifting movement is carried out in one operation with the hydraulic cylinder. After the tensioning process has been completed, the nut is turned by hand on the thread of the tie rod until it stops. After the clamp fastener has been tensioned, the hydraulic tensioning device can be dismantled if the temperatures in the reactor area so require.
  • the piston rod is a hollow cylinder into which the tie rod is screwed.
  • the cylinder tube be connected to the second clamp end via a pressure plate which, in order to compensate for the rotational movement of the clamp ends, rests against the second clamp end.
  • releasable connecting elements between the pressure plate and the second clamp end are proposed.
  • the tie rod is guided through the pressure plate.
  • the tie rod be movably attached to the first clamp end, in particular with a bolt rotatably arranged in the first clamp end.
  • the cylinder tube is fastened to the pressure plate via a tubular extension which has a recess which enables the nut to be rotated.
  • Figure 1 is a plan view in cal atic representation of a
  • FIG. 2 shows a section along the line II - II of Figure 1
  • Figure 3 is a plan view or a longitudinal section through the
  • FIG. 4 shows a section along the line IV-IV of FIG. 3.
  • the clamp closure consists of three segments 1, which are connected to one another via swivel joints 2.
  • the clamp is held under tension by a tie rod 3 and a nut 4.
  • the clip segments 1 have a trapezoidal circumferential groove 5 on their inside, into which wedge-shaped outer bottles 6 and 7 of the elements 8 and 9 to be connected engage.
  • the elements 8 and 9 can e.g. B. pipe ends, extruder head and extruder, Reak ⁇ tordeckel and reactor vessel and the like. When the clamp is pulled together, the element 8 is therefore pressed onto the element 9.
  • FIG. 3 shows a section of a clamp closure according to the invention with an assembled hydraulic tensioning device.
  • the same reference numbers designate the same parts. For the sake of simplicity, the elements to be connected are not shown.
  • the tensioning device essentially consists of a double-acting cylinder, the piston of which is therefore hydraulically movable in both directions.
  • the tie rod 3 is screwed into the hollow piston rod 10.
  • the cylinder tube 11 is flanged to a pressure plate 13 via a tubular extension 12, which carries a roller-shaped projection 14 on the opposite side. This lies on the outer surface of the second clip end 15.
  • the tie rod 3 is guided through the pressure plate 13 with its cylindrical projection 14, as can also be seen from FIG.
  • the tie rod 3 continues through a bore 16 in the second clamp end 15 and is screwed into a rotatable bolt 17 provided with a threaded blind hole.
  • the bolt 17 is arranged in the first clamp end 18 so as to be rotatable about its axis, so that the rotational movement of the clamp ends 15, 18 which occurs when the clamp is released and released.
  • the procedure for tensioning the clamp closure is as follows. Hydraulic fluid flows into a first Zylinderka mer 19, so that the piston 20 with the piston rod 10 and the tie rod 3 moves away from the clamp ends 15, 18 and these are contracted. The rotational movement of the clamp ends 15, 18 that occurs is compensated on the one hand by a rotational movement of the bolt 17 about its own longitudinal axis and on the other hand by a rotational movement of the roller-shaped projection 14 of the pressure plate 13. When the required tension of the clamp closure is reached, the nut 4 seated on the thread of the tie rod 3 is screwed in the direction of the clamp ends 15, 18 until it abuts the pressure plate 13.
  • a recess 21 is provided in the tubular extension 12 of the cylinder tube 11. Then the hydraulic tensioning device is dismantled. To release the clamp closure, retaining tabs 22 (FIG. 4) are attached to the cylindrical projection 14 of the pressure plate 13 and the second clamp end 15, so that the pressure plate 13 is detachably fastened to the second clamp end 15. After loosening the nut 4, pressure is applied to the second cylinder chamber 23, so that the cylinder tube 11 and the second clamp end 15 connected to it via the tubular extension 12, the pressure plate 13 and the cylindrical projection 14 move away from the first clamp end 18.

Abstract

The invention concerns a clasp closure with a hydraulic clamping device and a tie rod (3) which is fixed to the first end (18) of the multi-component annular clasp and passes through the second end (15) of the clasp. When closed by a nut (4) mounted on the tie rod (3), the clasp is held under tension. So that the threaded tie rod (3) is not subjected to high stresses when the clasp is opened and closed, the invention proposes that the clamping device is designed as a double-acting hydraulic cylinder, with piston rod (10), with which the tie rod (3) is detachably connected, and that the casing (11) of the hydraulic cylinder abuts the second end (15) of the clasp.

Description

"K1aπmerversch1uß" "K1aπmerversch1uß"
Die Erfindung betrifft einen Klammerverschluß mit einer hydrauli¬ schen Spannvorrichtung und einem Zuganker, der an einem ersten Ende der mehrteiligen ringförmigen Klammer befestigt und durch das zweite Klammerende geführt ist, wobei die Klammer nach dem Verschließen von einer auf dem Zuganker angebrachten Mutter unter Spannung gehalten wird. Der Klammerverschluß ist geeignet zum Verbinden von Rohrlei¬ tungen, zum Anschließen eines Extruderkopfs an einem Extruder, zum Befestigen eines Reaktordeckels, insbesondere für Hochdruckreakto- ren, und für viele andere lösbare Verbindungen.The invention relates to a clamp closure with a hydraulic tensioning device and a tie rod which is fastened to a first end of the multi-part annular clamp and is guided through the second clamp end, the clamp being held under tension by a nut attached to the tie rod after the closure . The clamp closure is suitable for connecting pipes, for connecting an extruder head to an extruder, for attaching a reactor cover, in particular for high-pressure reactors, and for many other detachable connections.
Im folgenden wird die der Erfindung zugrunde liegende Problemstel¬ lung am Beispiel eines Verschlusses für Hochdruckreaktoren erläu¬ tert. Der erfindungsgemäße Klammerverschluß ist aber nicht auf diese Anwendung beschränkt.In the following, the problem underlying the invention is explained using the example of a closure for high-pressure reactors. The clip closure according to the invention is not limited to this application.
Deckel von Hochdruckreaktoren werden üblicherweise mit dreiteiligen Klammern lösbar mit dem Reaktorbehälter verbunden. Die Innenseite jedes Klammerteils weist ein trapezförmiges Profil auf, in das die keilförmigen Außenflansche des Reaktorbehälters und des Deckels ein¬ greifen. Beim Zusammendrücken der Klammer werden daher der Deckel¬ rand und der Rand des Reaktorbehälters fest aufeinandergepreßt.Lids of high pressure reactors are usually made with three parts Clamps releasably connected to the reactor vessel. The inside of each clamp part has a trapezoidal profile, into which the wedge-shaped outer flanges of the reactor vessel and the cover engage. When the clamp is pressed together, the lid edge and the edge of the reactor vessel are therefore pressed firmly against one another.
Um die dreiteilige Klammer unter Spannung zu bringen und zu halten, sind mehrere Möglichkeiten bekannt. Zum einen werden die Klammeren¬ den mit einer Links-Rechts-Gewindespindel über drehbare Muttern zu¬ sammengezogen. Dabei treten extrem hohe Zug- und Druckkräfte im Spindelbereich auf, die an den drehbaren Muttern zu starken Rei¬ bungskräften führen. Kantenpressungen am Gewinde sind die Folge. Beim Zusammenpressen der Klammerenden bewegen diese sich nicht geradlinig, sondern auf einer gekrümmten Bahn aufeinander zu. Diese zusätzliche Drehbewegung wird durch die Drehbarkeit der genannten Muttern ausgeglichen. Die auftretenden starken Reibungskräfte erschweren jedoch sehr den gewünschten Bewegungsausgleich.There are several known ways of bringing the three-part clamp under tension and holding it there. On the one hand, the clamp ends are drawn together with a left-right threaded spindle via rotatable nuts. Extremely high tensile and compressive forces occur in the spindle area, which lead to strong frictional forces on the rotatable nuts. Edge pressures on the thread are the result. When the clamp ends are pressed together, they do not move in a straight line, but towards each other on a curved path. This additional rotary movement is compensated for by the rotatability of the nuts mentioned. However, the strong frictional forces that occur make the desired movement compensation very difficult.
Bei einem anderen bekannten Klammerverschluß hat die Links-Rechts- Gewindespindel als Bewegungsgewinde nur die Losbrechkräfte beim Öffnen der Klammer zu überwinden. Der eigentliche Schließvorgang wird über einen vor der Bewegungsspindel angebrachten Schrauben¬ bolzen bewirkt, der hydraulisch vorgespannt wird. Das Öffnen der Klammer kann jedoch nicht hydraulisch vorgenommen werden. Nachteilig ist außerdem, daß beim Öffnen das Bewegungsgewinde zur Selbsthemmung neigt.In another known clamp closure, the left-right threaded spindle, as a movement thread, only has to overcome the breakaway forces when the clamp is opened. The actual closing process is effected by means of a screw bolt which is attached in front of the movement spindle and is preloaded hydraulically. However, the clamp cannot be opened hydraulically. Another disadvantage is that when opening the movement thread tends to self-locking.
Der Erfindung liegt die Aufgabe zugrunde, einen Klammerverschluß der eingang genannten Art zu schaffen, bei dessen Schließen und Öffnen der ein Gewinde tragende Zuganker nicht unter hoher Spannung steht.The invention has for its object to provide a clamp closure of the type mentioned, when closing and opening the threaded tie rod is not under high tension.
Diese Aufgabe wird dadurch gelöst, daß die Spannvorrichtung als ein doppeltwirkender Hydraulikzylinder mit einer Kolbenstange ausgebil¬ det ist, mit dem der Zuganker lösbar verbunden ist und daß das Zy¬ linderrohr des Hydraulikzylinders sich an dem zweiten Klammerende abstützt. Die beim Öffnen und Schließen der Klammer erforderlichen Kräfte werden von dem Hydraulikzylinder aufgebracht, ohne daß wäh¬ rend dieses Vorgangs der Zuganker im Gewinde gedreht werden muß. Sowohl zum Öffnen als auch zum Schließen der Klammer wird die Hy¬ draulik eingesetzt. Die gesamte Hubbewegung wird in einem Arbeits¬ gang mit dem Hydraulikzylinder durchgeführt. Nach Beendigung des Spannvorgangs wird die Mutter von Hand auf dem Gewinde des Zugankers bis zum Anschlag gedreht. Nach dem Spannen des Klammerverschlusses kann die hydraulische Spannvorrichtung abgebaut werden, wenn die im Reaktorbereich auftretenden Temperaturen dies erfordern.This object is achieved in that the clamping device as a double-acting hydraulic cylinder is designed with a piston rod to which the tie rod is detachably connected and that the cylinder tube of the hydraulic cylinder is supported on the second clamp end. The forces required when opening and closing the clamp are applied by the hydraulic cylinder without the tie rod having to be rotated in the thread during this process. The hydraulic system is used both for opening and for closing the clip. The entire lifting movement is carried out in one operation with the hydraulic cylinder. After the tensioning process has been completed, the nut is turned by hand on the thread of the tie rod until it stops. After the clamp fastener has been tensioned, the hydraulic tensioning device can be dismantled if the temperatures in the reactor area so require.
Bei der Befestigung der Kolbenstange mit dem Zuganker ist es beson¬ ders vorteilhaft, wenn die Kolbenstange ein Hohlzylinder ist, in den der Zuganker eingeschraubt ist.When attaching the piston rod to the tie rod, it is particularly advantageous if the piston rod is a hollow cylinder into which the tie rod is screwed.
Zum Ausgleich der Drehbewegung der Klammerenden wird vorgeschlagen, daß das Zylinderrohr mit dem zweiten Klammerende über eine Druck¬ platte verbunden ist, die zum Ausgleich der Drehbewegung der Klammerenden beweglich an dem zweiten Klammerende anliegt.To compensate for the rotational movement of the clamp ends, it is proposed that the cylinder tube be connected to the second clamp end via a pressure plate which, in order to compensate for the rotational movement of the clamp ends, rests against the second clamp end.
Um beim Lösen des Klammerverschlusses das Abheben der Druckplatte von dem zweiten Klammerende zu verhindern, werden lösbare Verbin¬ dungselemente zwischen der Druckplatte und dem zweiten Klammerende vorgeschlagen. In einer weiteren vorteilhaften Ausgestaltung ist der Zuganker durch die Druckplatte geführt.In order to prevent the pressure plate from lifting off the second clamp end when the clamp closure is released, releasable connecting elements between the pressure plate and the second clamp end are proposed. In a further advantageous embodiment, the tie rod is guided through the pressure plate.
Zum Ausgleich der Drehbewegung der Klammerenden wird außerdem vor¬ geschlagen, daß der Zuganker beweglich an dem ersten Klammerende, insbesondere mit einem im ersten Kla merende drehbar angeordneten Bolzen befestigt ist. Um nach dem Spannen des Klammerverschlusses das Anziehen der Mutter auf eine einfache Weise zu ermöglichen, ist das Zylinderrohr an der Druckplatte über eine rohrförmige Verlängerung befestigt, die eine das Drehen der Mutter ermöglichende Aussparung aufweist.To compensate for the rotational movement of the clamp ends, it is also proposed that the tie rod be movably attached to the first clamp end, in particular with a bolt rotatably arranged in the first clamp end. In order to enable the nut to be tightened in a simple manner after the clamp closure has been tensioned, the cylinder tube is fastened to the pressure plate via a tubular extension which has a recess which enables the nut to be rotated.
Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand von Zeichnungen näher beschrieben. Es zeigenIn the following an embodiment of the invention will be described with reference to drawings. Show it
Figur 1 eine Draufsicht in sche atischer Darstellung auf einenFigure 1 is a plan view in cal atic representation of a
Klammerverschluß gemäß der Erfindung nach der Demontage der hydraulischen Spannvorrichtung, Figur 2 einen Schnitt entlang der Linie II - II von Figur 1, Figur 3 eine Draufsicht bzw. ein Längsschnitt durch die an denClasp closure according to the invention after dismantling the hydraulic tensioning device, Figure 2 shows a section along the line II - II of Figure 1, Figure 3 is a plan view or a longitudinal section through the
Klammerenden anliegende hydraulische Spannvorrichtung gemäß der Erfindung und Figur 4 einen Schnitt entlang der Linie IV - IV von Figur 3.Clamping ends of the hydraulic tensioning device according to the invention and FIG. 4 shows a section along the line IV-IV of FIG. 3.
Der Klammerverschluß besteht nach Figur 1 aus drei Segmenten 1, die über Drehgelenke 2 miteinander verbunden sind. Die Klammer wird von einem Zuganker 3 und einer Mutter 4 unter Spannung gehalten.According to FIG. 1, the clamp closure consists of three segments 1, which are connected to one another via swivel joints 2. The clamp is held under tension by a tie rod 3 and a nut 4.
Die Klammersegmente 1 weisen nach Figur 2 an ihrer Innenseite eine trapezförmige umlaufende Nut 5 auf, in die keilförmige Außenflaπsche 6 und 7 der zu verbindenden Elemente 8 und 9 eingreifen. Die Elemen¬ te 8 und 9 können z. B. Rohrenden, Extruderkopf und Extruder, Reak¬ tordeckel und Reaktorbehälter und dergleichen sein. Beim Zusammen¬ ziehen der Klammer wird daher das Element 8 auf das Element 9 ge¬ preßt.According to FIG. 2, the clip segments 1 have a trapezoidal circumferential groove 5 on their inside, into which wedge-shaped outer bottles 6 and 7 of the elements 8 and 9 to be connected engage. The elements 8 and 9 can e.g. B. pipe ends, extruder head and extruder, Reak¬ tordeckel and reactor vessel and the like. When the clamp is pulled together, the element 8 is therefore pressed onto the element 9.
Figur 3 zeigt einen Ausschnitt eines erfindungsgemäßen Klammerver¬ schlusses mit montierter hydraulischer Spannvorrichtung. Hier wie in den anderen Figuren bezeichnen gleiche Bezugszahlen gleiche Teile. Der Einfachheit halber sind die zu verbindenden Elemente nicht dar¬ gestellt.FIG. 3 shows a section of a clamp closure according to the invention with an assembled hydraulic tensioning device. Here, as in the other figures, the same reference numbers designate the same parts. For the sake of simplicity, the elements to be connected are not shown.
Die Spannvorrichtung besteht im wesentlichen aus einem doppeltwir¬ kenden Zylinder, dessen Kolben also in beiden Richtungen hydraulisch bewegbar ist. In die hohle Kolbenstange 10 ist der Zuganker 3 ge¬ schraubt. Das Zylinderrohr 11 ist über eine rohrförmige Verlängerung 12 an eine Druckplatte 13 angeflanscht, die an der gegenüberliegen¬ den Seite einen walzenförmigen Vorsprung 14 trägt. Dieser liegt an der Außenfläche des zweiten Klammerendes 15 an. Durch die Druck¬ platte 13 mit ihrem walzenförmigen Vorsprung 14 ist der Zuganker 3 geführt, wie auch aus Figur 4 ersichtlich ist. Der Zuganker 3 verläuft weiter durch eine Bohrung 16 in dem zweiten Klammerende 15 und ist in einem mit einem Gewindesackloch versehenen drehbaren Bolzen 17 eingeschraubt. Der Bolzen 17 ist im ersten Klammerende 18 um seine Achse drehbar angeordnet, so daß die beim Spannen und Lösen der Klammer auftretende Drehbewegung der Klammerenden 15, 18 ausgeglichen werden kann.The tensioning device essentially consists of a double-acting cylinder, the piston of which is therefore hydraulically movable in both directions. The tie rod 3 is screwed into the hollow piston rod 10. The cylinder tube 11 is flanged to a pressure plate 13 via a tubular extension 12, which carries a roller-shaped projection 14 on the opposite side. This lies on the outer surface of the second clip end 15. The tie rod 3 is guided through the pressure plate 13 with its cylindrical projection 14, as can also be seen from FIG. The tie rod 3 continues through a bore 16 in the second clamp end 15 and is screwed into a rotatable bolt 17 provided with a threaded blind hole. The bolt 17 is arranged in the first clamp end 18 so as to be rotatable about its axis, so that the rotational movement of the clamp ends 15, 18 which occurs when the clamp is released and released.
Beim Spannen des Klammerverschlusses wird wie folgt vorgegangen. Hydraulikflüssigkeit strömt in eine erste Zylinderka mer 19, so daß sich der Kolben 20 mit der Kolbenstange 10 und dem Zuganker 3 von den Klammerenden 15, 18 wegbewegt und diese zusammengezogen werden. Die dabei auftretende Drehbewegung der Klammerenden 15, 18 wird zum einen durch eine Drehbewegung des Bolzens 17 um die eigene Längs¬ achse und zum anderen durch eine Drehbewegung des walzenförmigen Vorsprungs 14 der Druckplatte 13 ausgeglichen. Wenn die erforder¬ liche Spannung des Klammerverschlusses erreicht ist, wird die auf dem Gewinde des Zugankers 3 sitzende Mutter 4 in Richtung auf die Klammerenden 15, 18 geschraubt, bis sie an der Druckplatte 13 an¬ liegt. Um diese von Hand durchzuführende Verschraubung vorzunehmen, ist eine Aussparung 21 in der rohrförmigen Verlängerung 12 des Zylin¬ derrohrs 11 vorgesehen. Dann wird die hydraulische Spannvorrichtung demontiert. Zum Lösen des Klammerverschlusses werden Haltelaschen 22 (Figur 4) an dem walzenförmigen Vorsprung 14 der Druckplatte 13 und dem zweiten Klammerende 15 angebracht, so daß die Druckplatte 13 lösbar an dem zweiten Klammerende 15 befestigt ist. Nach dem Lösen der Mutter 4 wird Druck auf die zweite Zylinderkammer 23 gegeben, so daß sich das Zylinderrohr 11 und das mit diesem über die rohrförmige Verlängerung 12, die Druckplatte 13 und den walzenförmigen Vorsprung 14 verbundene zweite Klammerende 15 von dem ersten Klammerende 18 wegbewegt. The procedure for tensioning the clamp closure is as follows. Hydraulic fluid flows into a first Zylinderka mer 19, so that the piston 20 with the piston rod 10 and the tie rod 3 moves away from the clamp ends 15, 18 and these are contracted. The rotational movement of the clamp ends 15, 18 that occurs is compensated on the one hand by a rotational movement of the bolt 17 about its own longitudinal axis and on the other hand by a rotational movement of the roller-shaped projection 14 of the pressure plate 13. When the required tension of the clamp closure is reached, the nut 4 seated on the thread of the tie rod 3 is screwed in the direction of the clamp ends 15, 18 until it abuts the pressure plate 13. In order to carry out this screw connection to be carried out by hand, a recess 21 is provided in the tubular extension 12 of the cylinder tube 11. Then the hydraulic tensioning device is dismantled. To release the clamp closure, retaining tabs 22 (FIG. 4) are attached to the cylindrical projection 14 of the pressure plate 13 and the second clamp end 15, so that the pressure plate 13 is detachably fastened to the second clamp end 15. After loosening the nut 4, pressure is applied to the second cylinder chamber 23, so that the cylinder tube 11 and the second clamp end 15 connected to it via the tubular extension 12, the pressure plate 13 and the cylindrical projection 14 move away from the first clamp end 18.
B e z u g s z e i c h e n l i s t eB e z u g s z e i c h e n l i s t e
Figure imgf000009_0001
Figure imgf000009_0001

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Klammerverschluß mit einer hydraulischen Spannvorrichtuπg und einem Zuganker (3), der an einem ersten Ende (18) der mehrtei¬ ligen ringförmigen Klammer befestigt und durch das zweite Klam¬ merende (15) geführt ist, wobei die Klammer nach dem Verschlie¬ ßen von einer auf dem Zuganker (3) angebrachten Mutter (4) unter Spannung gehalten wird, d a d u r c h g e k e n n z e i c h n e t, daß die Spannvorrichtung als ein doppeltwirkender Hydraulikzy¬ linder mit einer Kolbenstange (10) ausgebildet ist, mit dem der Zuganker (3) lösbar verbunden ist und daß das Zylinderrohr (11) des Hydraulikzylinders sich an dem zweiten Klammerende (15) ab¬ stützt.1. Clasp closure with a hydraulic tensioning device and a tie rod (3) which is attached to a first end (18) of the multi-part annular clamp and is guided through the second end of the clamp (15), the clamp being closed is held under tension by a nut (4) attached to the tie rod (3), characterized in that the tensioning device is designed as a double-acting hydraulic cylinder with a piston rod (10) to which the tie rod (3) is detachably connected and that the cylinder tube (11) of the hydraulic cylinder is supported on the second clamp end (15).
2. Klammerverschluß nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß die Kolbenstange (10) ein Hohlzylinder ist, in den der Zuganker (3) eingeschraubt ist.2. Clasp closure according to claim 1, so that the piston rod (10) is a hollow cylinder into which the tie rod (3) is screwed.
3. Klammerverschluß nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t, daß das Zylinderrohr (11) mit dem zweiten Klammerende (15) über eine Druckplatte (13) verbunden ist, die zum Ausgleich der Drehbewegung der Klammerenden (15,18) beweglich an dem zweiten Klammerende (15) anliegt.3. Clasp closure according to claim 1 or 2, characterized in that the cylinder tube (11) is connected to the second clamp end (15) via a pressure plate (13) which is movable to compensate for the rotational movement of the clamp ends (15, 18) on the second clamp end (15) is present.
4. Klammerverschluß nach Anspruch 3, g e k e n n z e i c h n e t d u r c h lösbare Verbindungselemente (22) zwischen der Druckplatte (13) und dem zweiten Klammerende (15). 4. Clasp closure according to claim 3, characterized by releasable connecting elements (22) between the pressure plate (13) and the second clamp end (15).
5. Klammerverschluß nach Anspruch 3 oder 4, d a d u r c h g e k e n n z e i c h n e t, daß der Zuganker (3) durch die Druckplatte (13) geführt ist.5. Clasp closure according to claim 3 or 4, d a d u r c h g e k e n n z e i c h n e t that the tie rod (3) is guided through the pressure plate (13).
6. Klammerverschluß nach einem der Ansprüche 1 bis 5, d a d u r c h g e k e n n z e i c h n e t, daß der Zuganker (3) zum Ausgleich der Drehbewegung der Klammerenden (15,18) beweglich an dem ersten Klammerende (18), insbesondere mit einem im ersten Klammerende (18) drehbar ange¬ ordneten Bolzen (17) befestigt ist.6. Clasp closure according to one of claims 1 to 5, characterized in that the tie rod (3) to compensate for the rotational movement of the clamp ends (15, 18) movably on the first clamp end (18), in particular with one in the first clamp end (18) rotatably ¬ arranged bolt (17) is attached.
7. Klammerverschluß nach einem der Ansprüche 3 bis 6, d a d u r c h g e k e n n z e i c h n e t, daß das Zylinderrohr (11) an der Druckplatte (13) über eine rohrförmige Verlängerung (12) befestigt ist, die eine das Drehen der Mutter (4) ermöglichende Aussparung (21) aufweist. 7. Clasp closure according to one of claims 3 to 6, characterized in that the cylinder tube (11) on the pressure plate (13) via a tubular extension (12) is attached, which has a turning of the nut (4) enabling recess (21) .
PCT/EP1992/001845 1991-08-22 1992-08-13 Clasp closure WO1993004307A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914127776 DE4127776C2 (en) 1991-08-22 1991-08-22 Clasp closure of a reactor cover
DEP4127776.7 1991-08-22

Publications (1)

Publication Number Publication Date
WO1993004307A1 true WO1993004307A1 (en) 1993-03-04

Family

ID=6438835

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/001845 WO1993004307A1 (en) 1991-08-22 1992-08-13 Clasp closure

Country Status (2)

Country Link
DE (1) DE4127776C2 (en)
WO (1) WO1993004307A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016207043A1 (en) 2015-06-26 2016-12-29 Vetco Gray Scandinavia As Hydraulic tool for use with a clamp connector

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT405870B (en) * 1998-02-27 1999-12-27 Ivaylo Dipl Ing Popov QUICK RELEASE
DE102010002031A1 (en) 2009-03-20 2010-09-23 Kaltenbach & Voigt Gmbh Device for disinfecting, sterilizing and / or maintaining medical, in particular dental, instruments
EP2642171A1 (en) * 2012-03-20 2013-09-25 Vetco Gray Scandinavia AS Clamp connector arrangement
CN115493006B (en) * 2022-11-22 2023-01-24 中国空气动力研究与发展中心超高速空气动力研究所 Pipeline device and method for realizing rapid centering clamping and dismounting by utilizing pipeline flange

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2836127B1 (en) * 1978-08-18 1979-06-13 Kloeckner Werke Ag Coupling system for screw tensioning devices
DE3116281A1 (en) * 1980-04-28 1982-06-03 General Electric Co., Schenectady, N.Y. "DEVICE FOR DETACHABLE CLOSING OF AT LEAST TWO HOLES OVERLAYING FROM OTHER
DE3131173A1 (en) * 1981-08-06 1983-02-24 Martin Theodor 6639 Rehlingen Melchior LID FASTENING FOR PRESSURE TANKS, WORK CYLINDERS OR THE LIKE
DD204524A1 (en) * 1982-01-15 1983-11-30 Eisen Und Huettenwerk Thale Ve MECHANIZED LOCKING DEVICE FOR WORKING OPENINGS OF PRESSURE TANKS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE524460A (en) *
US3144165A (en) * 1962-08-29 1964-08-11 Turbon Machine Company Locking means for pressure vessel
CH588391A5 (en) * 1975-03-21 1977-05-31 Rappaz Emile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2836127B1 (en) * 1978-08-18 1979-06-13 Kloeckner Werke Ag Coupling system for screw tensioning devices
DE3116281A1 (en) * 1980-04-28 1982-06-03 General Electric Co., Schenectady, N.Y. "DEVICE FOR DETACHABLE CLOSING OF AT LEAST TWO HOLES OVERLAYING FROM OTHER
DE3131173A1 (en) * 1981-08-06 1983-02-24 Martin Theodor 6639 Rehlingen Melchior LID FASTENING FOR PRESSURE TANKS, WORK CYLINDERS OR THE LIKE
DD204524A1 (en) * 1982-01-15 1983-11-30 Eisen Und Huettenwerk Thale Ve MECHANIZED LOCKING DEVICE FOR WORKING OPENINGS OF PRESSURE TANKS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016207043A1 (en) 2015-06-26 2016-12-29 Vetco Gray Scandinavia As Hydraulic tool for use with a clamp connector
NO340221B1 (en) * 2015-06-26 2017-03-20 Vetco Gray Scandinavia As Hydraulic tool for use with a clamp connector
US10801621B2 (en) 2015-06-26 2020-10-13 Vetco Gray Scandinavia As Hydraulic tool for use with a clamp connector

Also Published As

Publication number Publication date
DE4127776C2 (en) 1997-01-09
DE4127776A1 (en) 1993-02-25

Similar Documents

Publication Publication Date Title
WO1994012297A1 (en) Pressing tool
DE2918998A1 (en) TENSION RING FOR FLANGE CONNECTIONS
DD216421A5 (en) METHOD AND DEVICE FOR FIXING AND ADJUSTING A PRESSURE PLATE ON A PLATE CYLINDER OF A ROTATION PRINTING MACHINE
DE3016744C2 (en) Holding forceps
DE3009168C2 (en) Device for pressure testing hose lines with metal fittings
DE1856267U (en) PNEUMATICALLY ACTUATED GRIPPER.
DE2607700C3 (en) Process for the production of pipe connections or the like
WO1993004307A1 (en) Clasp closure
DE2554948A1 (en) TENSIONING DEVICE FOR TENSIONING AND ANCHORING TENSION WIRE OR DGL.
DE3516346C1 (en) Clamping device for fastening a position sensor to the tie rod of a pressure-medium cylinder
EP0886096B1 (en) Connection device and fluid distributor with one or more of said connection devices
CH625996A5 (en) Device for butt welding thermoplastic pipes by the heated tool welding process
EP0205057A2 (en) Device for coupling and uncoupling gripper bar elements of a transfer press
DE3904903C2 (en) Device for clamping thin-walled hollow profiles
EP0339525A2 (en) Device for temporarily plugging the end of a pipe used as a district heating pipe, a water supply pipe or a sewer pipe
DE10253410A1 (en) Head for applying hot-melt adhesive has two adjustable gages at end of gap
DE3317186A1 (en) CONNECTING ELEMENT TO CONNECT TWO FLANGES
DE2501889C3 (en) Pipe seal
DE2334855C3 (en) Test closure
DE102006015273B4 (en) Hydraulic or pneumatic workpiece clamping system
DE2156633C3 (en) Piston-cylinder arrangement with a multi-part piston
DE3334074A1 (en) Remotely controllable clamping fixture for joining two pipe flanges located in hot cells of nuclear installations
DE1220171B (en) Testing device for pipes
DE19812623B4 (en) Adjustable stand
DE1800025C (en) Hydraulic tensioning jack for tensioning wires in prestressed concrete structures

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP NO US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
NENP Non-entry into the national phase

Ref country code: CA

122 Ep: pct application non-entry in european phase