EP2608935B1 - Éléments d'accouplement pour raccorder un appareil d'entraînement à une tête d'expanseur - Google Patents

Éléments d'accouplement pour raccorder un appareil d'entraînement à une tête d'expanseur Download PDF

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Publication number
EP2608935B1
EP2608935B1 EP11787593.0A EP11787593A EP2608935B1 EP 2608935 B1 EP2608935 B1 EP 2608935B1 EP 11787593 A EP11787593 A EP 11787593A EP 2608935 B1 EP2608935 B1 EP 2608935B1
Authority
EP
European Patent Office
Prior art keywords
coupling part
coupling
drive unit
expander head
expander
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11787593.0A
Other languages
German (de)
English (en)
Other versions
EP2608935A1 (fr
Inventor
Arnd Greding
Knut Lindner
Thoralf Krause
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rothenberger AG
Original Assignee
Rothenberger AG
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
Priority claimed from DE201010035221 external-priority patent/DE102010035221B4/de
Priority claimed from DE201010035222 external-priority patent/DE102010035222B4/de
Application filed by Rothenberger AG filed Critical Rothenberger AG
Publication of EP2608935A1 publication Critical patent/EP2608935A1/fr
Application granted granted Critical
Publication of EP2608935B1 publication Critical patent/EP2608935B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7005—Lugged member, rotary engagement

Definitions

  • the invention relates to a coupling for connecting a drive unit with an expander head, which serves for the expansion of pipes and hoses and is actuated by means of a driven by the drive unit expanding mandrel.
  • the invention further relates to the coupling parts of such a coupling.
  • the invention relates to an expander head with a coupling part and a drive unit with a coupling part of such a coupling.
  • Expander heads, drive devices and couplings of the type described above are usually part of an expander device, by means of which pipes and hoses are widened.
  • an expanding mandrel is moved translationally in the direction of an axis by means of the drive unit, whereby the expanding mandrel acts on the expander head.
  • the expander head usually has expanding jaws whose outer surfaces press against the inner circumference of the tube or hose to be expanded and expand.
  • the pressure force of the expanding jaws is usually caused by the expanding mandrel, which act in the course of its axial movement against control surfaces of the expanding jaws, so that the actuating force generated by the drive unit is transmitted via the axial movement of the expanding mandrel in a movement of the expanding jaws in the radial direction.
  • Expander head and drive unit are connected to each other there by means of a threaded coupling.
  • the expander head has an internal thread which can be screwed onto an external thread of the drive unit for attachment to the drive unit.
  • screw couplings are widely used today in expander devices.
  • a coupling part which has the features of claim 1. Furthermore, to solve the problem, a clutch having the features of claim 8, a coupling with the features of claim 9, a drive unit with the features of claim 10 and an expander device with the features of claim 12 are proposed.
  • An inventive coupling part for a coupling for connecting a drive unit with an expander head, which serves to expand tubes and hoses and is actuated by means of a driven by the drive unit expanding mandrel is according to claim 1, a first coupling part, which is assigned to the drive unit or assigned and with a second, the expander head assignable or associated coupling part is connectable, wherein the coupling parts are arranged in mutually mounted state along an axis, in particular common axis, along which the expanding mandrel for actuating the expander head is movable.
  • the coupling part or first coupling part according to the invention has a passage opening extending in the direction of the axis, which serves as a passage for the expanding mandrel.
  • the coupling part or first coupling part is provided on its circumference with radially outwardly peripheral portions whose rear side has at least one contact surface for engaging behind the second coupling part.
  • peripheral sections have on their respective rear side the at least one contact surface, against which the second coupling part is supported for producing a form-locking connection acting in the axial direction.
  • the free end of the coupling part facing away side is to be understood, whereas in the course of the invention under the front of the second coupling part facing side of the first coupling part is to be understood.
  • peripheral portions are formed in the manner of latching hooks.
  • peripheral portions may be sectors or segments, in particular circular sectors or circle segments.
  • the peripheral portions can be produced when the coupling part or first coupling part is formed by a hollow cylindrical body, on the outer circumference of which the radially outward peripheral portions are arranged, in particular formed.
  • a stop is provided by which a Einkuppelterrorism and / or a Auskuppelterrorism of the first coupling part is limited relative to the second coupling part.
  • the stop can for example be particularly easily formed by a pin element, which, for example, seen circumferentially, at the end or beginning of a Circumferential section is arranged and lies with its longitudinal axis in the axial direction.
  • the peripheral portions should be held against the biasing force of the spring element in the engaged position.
  • a part of the force of the spring element is used as a biasing force to hold the peripheral portions in the engaged position. It can thereby be effectively avoided any smallest movements of the peripheral portions and resulting rattling noises.
  • peripheral portions of the engagement position with respect to the second coupling part are forcibly moved. This ensures a high degree of safety when engaging and disengaging the two coupling parts against each other, since the peripheral sections are guided in their movement out of the engagement position with respect to the second coupling part in a predetermined trajectory.
  • the second coupling part receptacles for example.
  • the pressure means in particular balls, engage, when the two coupling parts are moved in the required position corresponding to each other.
  • the first coupling part according to the invention is thus designed to allow coupling of a second coupling part in two ways.
  • a second coupling part can be coupled against the coupling part according to the invention, which acts against the contact surface of the radially outward peripheral sections.
  • a second coupling part can be coupled to the coupling part according to the invention, which engages in the thread, in particular external thread.
  • the thread of the respective peripheral sections lies on a common outer circumference, which is concentric with respect to the axis, in particular central axis, is, along which the expanding mandrel for actuating the expander head is movable.
  • the thread is thus formed concentrically with respect to the axis on the first coupling part.
  • the second coupling part has at least one, preferably a plurality of counter sections, which engage in mutually mounted state of the coupling parts, the radially outwardly projecting peripheral portions of the first coupling part and act against the respective contact surface of the peripheral portions.
  • the counter sections should correspond circumferentially with the respective gap between adjacent peripheral portions of the first coupling part.
  • the mating sections in each case substantially correspond to the gap between adjacent peripheral portions of the first coupling part, a maximum overlap of the respective peripheral portion and associated mating portion is achieved in the distributed over the circumference arranged opposite portions on the second coupling part and the peripheral portions of the first coupling part and so that an acting in the axial direction positive connection realized for the transmission of high forces.
  • the mating sections form a circumferential continuous edge of the second coupling part, which extends in the radial direction.
  • the opposing sections thus form an edge without interruptions or section-free open spaces.
  • Such a configuration is particularly suitable when the first coupling part has movably formed peripheral sections.
  • a tying of the second coupling part to the first coupling part with a form-fitting connection acting in the axial direction is already realized in that both coupling parts are moved in the axial direction against each other and while the movable peripheral portions of the first coupling part are moved out of its engaged position. Only after merging the two coupling parts there is an acting in the axial direction positive connection, by then the peripheral portions of the first coupling part are moved back into the engaged position relative to the peripheral edge of the second coupling part.
  • the edge formed by the opposite portions of the second coupling part has an inlet slope on its inner circumference, against which the movable peripheral portions of the first coupling part during assembly of the coupling parts in the axial direction along sliding in engagement position can be brought.
  • the manufacture of the engagement of opposite portions of the second coupling part with the peripheral portions of the first coupling part is substantially facilitated.
  • the movable peripheral portions are automatically moved out of the inlet position by the inlet slope of the engagement position. After passing through the inlet bevel, the movable peripheral sections then automatically move back into the engaged position, for example by the force of at least one spring element, so that the form-locking connection acting in the axial direction is produced between the two coupling parts.
  • the invention comprises a coupling for connecting a drive unit with an expander head, which serves for expanding tubes and hoses and is actuated by means of a driven by the drive unit expanding mandrel, with a first coupling parts of the type described above and a second coupling part, which with the Thread of the first coupling part has corresponding thread, so that the second coupling part and the first coupling part are connected by screwing together.
  • the invention comprises an expander head for an expander device for expanding pipes and hoses with a coupling part of the type described above, in particular a second coupling part of the type described above.
  • the drive unit 1 may be manually operated, as shown in FIG. 1 is apparent.
  • the drive unit 1 is to preferably designed like a pliers and has two mutually movable hand lever 2, 3, which are mounted in a housing 4 of the drive unit 1 against each other pivotally.
  • the expanding mandrel 5 is moved in the axial direction of a Ausgansgposition along the axis A preferably translationally toward an end position, wherein the expanding mandrel 5 presses in the course of its movement expanding jaws 7 of the expander head 6 radially outward ,
  • an electric motor, pneumatically and / or hydraulically actuated drive unit is used to an expander head in the manner of an expander head 6 according to the FIG. 1 to operate by means of the expanding mandrel 5.
  • a stop 30 is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Claims (12)

  1. Pièce d'accouplement pour un accouplement pour raccordement d'un dispositif moteur (1) à une tête d'expansion (6 ; 6' ; 6"), laquelle sert à élargir des tuyaux et des tubes et est actionnée par un mandrin (5) entraîné par le dispositif moteur (1), dans laquelle la pièce d'accouplement est une première pièce d'accouplement (20a ; 20b), laquelle peut être coordonnée au dispositif moteur (1) et peut être raccordée à une seconde pièce d'accouplement (60a ; 60b) pouvant être coordonnée à la tête d'expansion (6 ; 6' ; 6"), dans laquelle les pièces d'accouplement (20a, 60a ; 20b, 60b) sont agencées, à l'état assemblé l'une à l'autre, le long d'un axe (A), le long duquel le mandrin (5) peut bouger pour actionner la tête d'expansion (6 ; 6' ; 6"), et la première pièce d'accouplement (20a ; 20b) comporte une ouverture de passage (21) s'étendant dans la direction de l'axe (A) comme passage pour le mandrin (5), caractérisée en ce que la première pièce d'accouplement (20a ; 20b) est prévue sur son étendue avec des segments périphériques (22a, 23a, 24a ; 22b, 23b, 24b) se projetant radialement vers l'extérieur, dont la face arrière (26) comporte au moins une surface de contact (27) pour saisir par l'arrière la seconde pièce d'accouplement (60a ; 60b), dans laquelle les segments périphériques (22a, 23a, 24a ; 22b, 23b, 24b) comprennent un filetage (36) pour se visser à une seconde pièce d'accouplement, de sorte que la première pièce d'accouplement (20a, 20b) peut être amenée en raccord vissé avec la seconde pièce d'accouplement par rotation autour de l'axe (A).
  2. Pièce d'accouplement selon la revendication 1, caractérisée en ce que les segments périphériques (22a, 23a, 24a ; 22b, 23b, 24b) reposent avec leur extrémité radiale sur une circonférence extérieure (28), dont le contour correspond essentiellement au contour périphérique de la première pièce d'accouplement (20a ; 20b).
  3. Pièce d'accouplement selon la revendication 1 ou 2, caractérisée en ce qu'une butée (30) au moins est prévue, grâce à laquelle un mouvement de couplage et/ou un mouvement de découplage de la première pièce d'accouplement (20a) par rapport à la seconde pièce d'accouplement (60a) est limité.
  4. Pièce d'accouplement selon l'une des revendications précédentes, caractérisée en ce que les segments périphériques (22a, 23a, 24a) sont immobiles par rapport à la première pièce d'accouplement (20a).
  5. Pièce d'accouplement selon l'une des revendications 1 à 3, caractérisée en ce que les segments périphériques (22b, 23b, 24b) sont maintenus mobiles sur la première pièce d'accouplement (20b) et peuvent être enlevés depuis une position en prise par rapport à la seconde pièce d'accouplement (60b).
  6. Pièce d'accouplement selon la revendication 5, caractérisée en ce que les segments périphériques (22b, 23b, 24b) peuvent être enlevés contre la force de rappel d'au moins un élément de ressort depuis la position en prise par rapport à la seconde pièce d'accouplement (60b) .
  7. Pièce d'accouplement selon l'une des revendications précédentes, caractérisée en ce que des leviers (35) sont prévus, qui pressent la seconde pièce d'accouplement (60a ; 60b) contre la surface de contact (27) des segments périphériques (22a, 23a, 24a ; 22b, 23b, 24b) lorsque les pièces d'accouplement (20a, 60a ; 20b, 60b) sont montées l'une contre l'autre.
  8. Accouplement pour raccordement d'un dispositif moteur (1) à une tête d'expansion (6 ; 6' ; 6"), laquelle sert à élargir des conduits et des tubes et est actionnée par le biais d'un mandrin (5) entraîné par le dispositif moteur (1), dotée d'une première pièce d'accouplement (20a ; 20b) selon une des revendications 1 à 7 et une seconde pièce d'accouplement (60a ; 60b), laquelle peut être agencée à la tête d'expansion (6 ; 6' ; 6") et être connectée à la première pièce d'accouplement (20a ; 20b), dans lequel les pièces d'accouplement (60a, 20a ; 60b, 20b) sont agencées, à l'état assemblé l'une à l'autre, le long d'un axe (A), le long duquel le mandrin (5) peut bouger pour actionner la tête d'expansion (6 ; 6' ; 6"), et dans lequel la seconde pièce d'accouplement (60a ; 60b) comporte au moins une, de préférence plusieurs sections talon (62, 63, 64), lesquelles saisissent par l'arrière, à l'état assemblé l'une à l'autre des pièces d'accouplement (60a, 20a ; 60b, 20b), les segments périphériques (22a, 23a, 24a ; 22b, 23b, 24b) se projetant radialement vers l'extérieur de la première pièce d'accouplement (20a ; 20b) et agissent contre les surfaces de contact (27) des segments périphériques (22a, 23a, 24a ; 22b, 23b, 24b).
  9. Accouplement pour raccordement d'un dispositif moteur (1) à une tête d'expansion (6 ; 6' ; 6"), laquelle sert à élargir des conduits et des tubes et est actionnée par le biais d'un mandrin (5) entraîné par le dispositif moteur (1), dotée d'une première pièce d'accouplement (20a ; 20b) selon une des revendications 1 à 7 et d'une seconde pièce d'accouplement, laquelle comporte un filetage correspondant au filetage (36) de la première pièce d'accouplement (20a ; 20b), de sorte que la seconde pièce d'accouplement et la première pièce d'accouplement (20a ; 20b) peuvent être raccordées l'une à l'autre par vissage.
  10. Dispositif moteur (1) pour un dispositif expanseur (100) visant à élargir des tubes et des tuyaux, doté d'une pièce d'accouplement (20a ; 20b) selon une des revendications 1 à 7.
  11. Dispositif moteur selon la revendication 10, caractérisé en ce qu'un dispositif de réglage est prévu, au moyen duquel la pièce d'accouplement (20a ; 20b) peut être déplacée dans la direction axiale sur sa position initiale par rapport au mandrin (5) du dispositif moteur (1).
  12. Dispositif expanseur (100) visant à élargir des tubes et des tuyaux dotés d'un accouplement selon la revendication 8 ou 9.
EP11787593.0A 2010-08-24 2011-08-23 Éléments d'accouplement pour raccorder un appareil d'entraînement à une tête d'expanseur Active EP2608935B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE201010035221 DE102010035221B4 (de) 2010-08-24 2010-08-24 Kupplung für die axiale Verbindung eines Antriebsgeräts mit Expanderkopf
DE201010035222 DE102010035222B4 (de) 2010-08-24 2010-08-24 Kupplung für die axiale Verbindung eines Antriebsgerätes mit einem Expanderkopf
PCT/DE2011/075199 WO2012037935A1 (fr) 2010-08-24 2011-08-23 Éléments d'accouplement pour raccorder un appareil d'entraînement à une tête d'expanseur

Publications (2)

Publication Number Publication Date
EP2608935A1 EP2608935A1 (fr) 2013-07-03
EP2608935B1 true EP2608935B1 (fr) 2018-02-28

Family

ID=45023466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11787593.0A Active EP2608935B1 (fr) 2010-08-24 2011-08-23 Éléments d'accouplement pour raccorder un appareil d'entraînement à une tête d'expanseur

Country Status (5)

Country Link
US (1) US9943949B2 (fr)
EP (1) EP2608935B1 (fr)
AU (2) AU2011304834A1 (fr)
ES (1) ES2668876T3 (fr)
WO (1) WO2012037935A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10226810B2 (en) * 2016-06-07 2019-03-12 Uniweld Products, Inc. Expanding tool and method
US9975289B2 (en) 2016-07-27 2018-05-22 Black & Decker Inc. PEX expanding tool
US11110646B2 (en) 2019-07-23 2021-09-07 Brochman Innovations, Llc PEX tubing expander head

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1372238A (en) * 1920-02-14 1921-03-22 Richard F Kreiter Tool-joint
US2219907A (en) 1938-04-11 1940-10-29 Walter F Ross Tool holder assembly
GB580318A (en) * 1944-09-06 1946-09-03 John Shaw Improvements relating to connectors, couplings, or stoppers for tubes and pipes
US3489436A (en) * 1965-10-23 1970-01-13 Ventura Tool Co Apparatus for hanging well bore casing
DE2654102C2 (de) 1976-11-29 1984-01-05 Rothenberger GmbH & Co Werkzeuge-Maschinen KG, 6000 Frankfurt Expansionskopf für Rohraufweitegeräte mit auswechselbaren Expansionsbacken
IT1176371B (it) * 1984-06-29 1987-08-18 Innocenti Santeustacchio Spa Giunto per il collegamento testa a testa di tubi metallici,in particolare per palificazioni marine
DE3732628C1 (de) * 1987-09-28 1989-04-27 Rothenberger Werkzeuge Masch Aufweitewerkzeug fuer hohle Werkstuecke
DE8807784U1 (de) 1988-06-15 1988-08-11 Semmler, Allan Raymond Aufweitwerkzeug
US5018901A (en) * 1988-07-21 1991-05-28 Space Industries Partnership, L. P. Ring latched coupler
DE8907348U1 (de) 1989-06-16 1989-07-27 Buschulte, Joachim, 4600 Dortmund Vorrichtung zur lösbaren Kupplung von Greifern oder entsprechenden Werkzeugen an Roboterarmen
DE4104205C1 (fr) 1991-02-12 1992-10-08 Rothenberger Werkzeuge-Maschinen Gmbh, 6233 Kelkheim, De
DE4202348C1 (en) 1992-01-29 1993-06-09 Rothenberger Werkzeuge-Maschinen Gmbh, 6233 Kelkheim, De Tube end expansion tool - has holding drillings for guide pins at inner and outer flange sectors
US5855451A (en) * 1997-04-21 1999-01-05 General Motors Corporation Coupling between steering wheel and steering shaft
CA2242592A1 (fr) 1997-07-11 1999-01-11 William D. Murray Entrees de filetage multiples pour des utilisations necessitant la transmission de couple eleve
DE19730054C1 (de) 1997-07-14 1999-03-18 Eckhard Wolter Expansionswerkzeug zum Verformen rohrförmiger Werkstückenden
DE10247549B3 (de) * 2002-10-11 2004-05-06 Rothenberger Ag Expansionswerkzeug für Hohlkörper mit einem elektrohydraulischen Antrieb
DE102007007294B3 (de) 2007-02-14 2008-07-10 Rothenberger Ag Antriebsgerät mit einer Kupplung für Werkzeugköpfe

Also Published As

Publication number Publication date
AU2017201741A1 (en) 2017-03-30
US9943949B2 (en) 2018-04-17
WO2012037935A1 (fr) 2012-03-29
ES2668876T3 (es) 2018-05-22
US20130156496A1 (en) 2013-06-20
AU2011304834A1 (en) 2013-04-04
AU2017201741B2 (en) 2019-01-17
EP2608935A1 (fr) 2013-07-03

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