EP0587493B1 - Autogenschneidbrenner - Google Patents

Autogenschneidbrenner Download PDF

Info

Publication number
EP0587493B1
EP0587493B1 EP93402178A EP93402178A EP0587493B1 EP 0587493 B1 EP0587493 B1 EP 0587493B1 EP 93402178 A EP93402178 A EP 93402178A EP 93402178 A EP93402178 A EP 93402178A EP 0587493 B1 EP0587493 B1 EP 0587493B1
Authority
EP
European Patent Office
Prior art keywords
blowtorch
nozzle
supporting member
end part
force
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.)
Expired - Lifetime
Application number
EP93402178A
Other languages
English (en)
French (fr)
Other versions
EP0587493A1 (de
Inventor
Thierry Haenel
Gilles Cannet
Richard Soula
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.)
Lincoln Electric Co France SA
Original Assignee
La Soudure Autogene Francaise
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 La Soudure Autogene Francaise filed Critical La Soudure Autogene Francaise
Publication of EP0587493A1 publication Critical patent/EP0587493A1/de
Application granted granted Critical
Publication of EP0587493B1 publication Critical patent/EP0587493B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/38—Torches, e.g. for brazing or heating
    • F23D14/42—Torches, e.g. for brazing or heating for cutting

Definitions

  • the present invention relates to torches, in particular of the type comprising a torch body having an axis main, defining at least two fluid passages and comprising an end portion where said passages open, a nozzle interchangeable having a mounting end, and means for unlockable blocking capable of cooperating with the nozzle for keep the nozzle applied to the end part of the body torch, the locking means comprising at least one member support, cooperating with the nozzle and movable between an inactive position and an active position for blocking the nozzle, and actuable by a movable assembly axially displaceable and coupled to a member force application carried by the torch body.
  • the nozzle is kept pressed against the end part, forming a conical bearing or flat, by a nut screwed on the end part of the torch, following a technique with a number of drawbacks: necessity to have a tool to unscrew and re-screw the nut; problems of nut tightness control; risk of adjustment of the perpendicularity of the torch in relation to the piece to be cut; and risks burns for the user after intensive use of the torch.
  • the object of the present invention is to provide a structure simple and robust torch, eliminating most of the inconvenience mentioned above and greatly facilitating its implementation by a even a low-skilled user.
  • the member support is rigid and includes a profiled housing receiving the end of mounting the nozzle (3) and comprising an opening (27) for access to the housing.
  • FIG. 1 shows, by way of example, a flame cutting torch comprising a torch body 1 extended by an end portion 2 on the end of which is mounted, removably, a nozzle (or cutting head) 3.
  • the torch body 1 comprises, in a tubular casing 4 a block 5 defining a passage 6 for cutting oxygen and a passage 7 oxy-fuel mixture downstream of two temperature control valves flow, of which only one (8) is visible in the drawing, supplied by fluid lines extending from a set 9 of fittings connection to cutting oxygen, oxygen supply lines heating and combustible gas, the assembly 9 being supported on a platinum 100.
  • the end part 2 comprises an external cylindrical barrel 11 mounted on the block 5, in the extension thereof, and housing a supported end block 12 by two fluid conduits 13 and 14 fitted into the ends downstream of passages 6 and 7 and in the upstream ends of passages correspondents 15 and 16 formed in the end block 12 and which open out, respectively centrally and through an annular chamber, in a flat end surface 47 of the block 12.
  • the block 12 is slightly protruding from the barrel 18 to allow easy access to the end face 12.
  • the upper ends of lines 13 and 14 are straight and parallel to the axis of the torch coincident with the axis of the rod 19.
  • the upper end of the rod 19 extends beyond the block 5 and is fixed, adjustable in length, in a piece 21 of coupling to a rod 22 of a pneumatic cylinder 23 mounted on the plate 10 and controlled by a pneumatic valve or solenoid valve 24 selectively supplying the cylinder 23 with a pressurized fluid, typically compressed air, routed through a supply line 25.
  • a tubular support member 26 of inner diameter slightly greater than the outer diameter of the end of block 12 and comprising, in the example shown, a lateral access opening constituted by a longitudinal slot 27.
  • the support member 26 has an annular bottom portion defining an inner shoulder 28 intended to cooperate with a shoulder lower 29 of a peripheral flange formed in the part nozzle 3.
  • the pneumatic cylinder 23 is of the single-acting type, in the direction of extraction of its rod 22, and the moving part 19, 17, 26 is constantly urged towards the high, that is to say in the direction tending to press a nozzle 3 arranged in the support member 26 in leaktight support against the surface end 47 of block 12, by a strong spring 30 compressed between the transfer member 21 and a counterbore in the upper part of the block 5.
  • blocks 12 and 5 are advantageously made of brass
  • the barrel 11 and the pipes 13 and 14 can be made of steel, as is the rod 19.
  • the nozzle 3 is kept pressed against the block 12 by the support member 26 under the effect of force, of at least 100 kg, typically around 150 kg, of spring 30.
  • the operator actuates the switch of the solenoid valve 24 to put actuates the jack 23 which pushes the mobile assembly 19-17-26 to against the spring 30, from a distance of between 8 and 10 mm, this which allows to easily clear and without the need for tools particular, the nozzle 3 of its housing in the support member 26.
  • a new nozzle being placed in the support member 26, the housing is shaped so as to guarantee its centering, the operator deactivates the jack 23 and the new nozzle is brought back pressed down watertight against block 12 by the ascent of the mobile assembly 19, 17, 26.
  • the present invention can find in particular its application in other types of torches, such as welding torches or drivers, as well as in the torches of heating or cutting, for example plasma torches.
  • the organ support may also, depending on the applications, include parts flexible and / or tilting cooperating with ramps formed at the end of the barrel 11.
  • the jack 23 can be electric or, optionally, of the mechanical type with force multiplier.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Arc Welding In General (AREA)
  • Lubricants (AREA)
  • Disintegrating Or Milling (AREA)
  • Surgical Instruments (AREA)
  • Laser Beam Processing (AREA)
  • Catalysts (AREA)
  • Gas Burners (AREA)

Claims (10)

  1. Brenner, insbesondere zum Brennschneiden, umfassend einen Brennerkörper (1) mit mindestens zwei Fluidkanälen (6, 7) längs einer Hauptachse und einem Endbereich (2), in den die Kanäle münden, einer austauschbaren Düse (3) mit einer Montageseite und lösbaren Verriegelungsmitteln, die dazu bestimmt sind, mit der Düse (3) zusammenzuwirken, um die an dem Endbereich des Körpers (1) angebrachte Düse zu halten, wobei die Verriegelungsmittel mindestens eine Halterung (26) umfassen, die mit der Düse (3) zusammenwirkt und zwischen einer inaktiven und einer aktiven Stellung zur Verriegelung der Düse verschiebbar ist und mittels eines beweglichen Teils (19, 17) betätigbar ist, das axial verschiebbar und mit einem an dem Brennerkörper (1) befindlichen Mittel zum Aufbringen einer Kraft (23; 30) gekoppelt ist, dadurch gekennzeichnet, daß die Halterung (26) starr ist und eine profilierte Ausnehmung umfaßt, die die Montageseite der Düse (3) aufnimmt und eine Zugangsöffnung (27) zu der Ausnehmung umfaßt.
  2. Brenner nach Anspruch 1, dadurch gekennzeichnet, daß die Ausnehmung der Halterung (26) einen ringförmigen Oberflächenanlagebereich (28) umfaßt, der mit einer Ringschulter (29) der Düse (3) zusammenwirkt.
  3. Brenner nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß der Endbereich (2) der Körpers eine Stirnfläche (47) aufweist, an der die Montageseite der Düse (3) über die Halterung (26) axial anliegt.
  4. Brenner nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Endbereich (2) einen zylindrischen Schaft (11) aufweist, in dem sich mindestens zwei Fluidleitungen (13, 14) erstrecken und an dem am Ende ein Block (12) angeordnet ist, der mit den Fluidleitungen verbunden ist und die Stirnfläche (47) bildet, wobei das bewegliche Teil einen rohrförmigen Bereich (17) umfaßt, der sich axial zwischen dem Umfang des am Ende liegenden Blocks (12) und dem Schaft (11) erstreckt.
  5. Brenner nach Anspruch 4, dadurch gekennzeichnet, daß das bewegliche Teil eine Stange (19) umfaßt, die sich axial in dem Brennerkörper (1) erstreckt.
  6. Brenner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Mittel zum Aufbringen einer Kraft einen Druckzylinder (23) umfaßt.
  7. Brenner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Halterung (26) einstückig mit dem beweglichen Teil (19, 17) ist.
  8. Brenner nach Anspruch 6 und Anspruch 7, dadurch gekennzeichnet, daß das Mittel zum Aufbringen einer Kraft eine Feder (30) umfaßt, die die Halterung (26) in Richtung ihrer aktiven Stellung belastet.
  9. Brenner nach Anspruch 8, dadurch gekennzeichnet, daß die Feder (30) in dem Brennerkörper (1) angeordnet ist.
  10. Brenner nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Stirnfläche (47) und die Montageseite der Düse (3) plan sind.
EP93402178A 1992-09-08 1993-09-08 Autogenschneidbrenner Expired - Lifetime EP0587493B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9210687A FR2695459B1 (fr) 1992-09-08 1992-09-08 Chalumeau, notamment d'oxycoupage.
FR9210687 1992-09-08

Publications (2)

Publication Number Publication Date
EP0587493A1 EP0587493A1 (de) 1994-03-16
EP0587493B1 true EP0587493B1 (de) 1998-01-21

Family

ID=9433288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93402178A Expired - Lifetime EP0587493B1 (de) 1992-09-08 1993-09-08 Autogenschneidbrenner

Country Status (6)

Country Link
EP (1) EP0587493B1 (de)
AT (1) ATE162606T1 (de)
DE (1) DE69316487T2 (de)
DK (1) DK0587493T3 (de)
ES (1) ES2111727T3 (de)
FR (1) FR2695459B1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2164972A (en) * 1937-06-26 1939-07-04 Oxweld Acetylene Co Blowpipe
FR987200A (fr) * 1948-05-21 1951-08-09 Perfectionnements aux chalumeaux à souder ou autres
GB950991A (en) * 1961-10-04 1964-03-04 Alfred John Mathews Improvements relating to oxygen cutting nozzles
DE2819073C2 (de) * 1978-04-29 1980-06-26 Messer Griesheim Gmbh, 6000 Frankfurt Maschinenbrenner

Also Published As

Publication number Publication date
DE69316487D1 (de) 1998-02-26
ATE162606T1 (de) 1998-02-15
FR2695459A1 (fr) 1994-03-11
ES2111727T3 (es) 1998-03-16
EP0587493A1 (de) 1994-03-16
DE69316487T2 (de) 1998-07-30
FR2695459B1 (fr) 1994-10-28
DK0587493T3 (da) 1998-05-11

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