EP2063177A2 - Chalumeau à couper doté d'une tête de brûleur recevant une buse échangeable - Google Patents

Chalumeau à couper doté d'une tête de brûleur recevant une buse échangeable Download PDF

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Publication number
EP2063177A2
EP2063177A2 EP08020388A EP08020388A EP2063177A2 EP 2063177 A2 EP2063177 A2 EP 2063177A2 EP 08020388 A EP08020388 A EP 08020388A EP 08020388 A EP08020388 A EP 08020388A EP 2063177 A2 EP2063177 A2 EP 2063177A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
cap
cutting
burner head
bearing surface
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.)
Granted
Application number
EP08020388A
Other languages
German (de)
English (en)
Other versions
EP2063177A3 (fr
EP2063177B1 (fr
Inventor
Manfred Greifzu
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.)
ESAB Welding and Cutting GmbH
Original Assignee
ESAB Cutting Systems GmbH
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 ESAB Cutting Systems GmbH filed Critical ESAB Cutting Systems GmbH
Priority to PL08020388T priority Critical patent/PL2063177T3/pl
Publication of EP2063177A2 publication Critical patent/EP2063177A2/fr
Publication of EP2063177A3 publication Critical patent/EP2063177A3/fr
Application granted granted Critical
Publication of EP2063177B1 publication Critical patent/EP2063177B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/52—Nozzles for torches; for blow-pipes
    • F23D14/54—Nozzles for torches; for blow-pipes for cutting or welding metal

Definitions

  • the invention relates to a cutting torch with a burner head, which accommodates an exchangeable cutting nozzle, according to the preamble of claim 1.
  • a burner tip is surrounded by a sleeve. These two parts are firmly connected to each other by means of a finely threaded thread and sealed against each other ( US Pat. No. 2,897,884 ). Through a central channel in the burner tip of the cutting zone oxygen can be supplied. Fuel gas is passed through channels outwardly formed from the burner tip, which tapers conically over a portion, to an opening of the burner tip. The burner tip is connected to the burner head via metallic seals, for which purpose the burner tip is provided with cone-shaped sealing surfaces.
  • the sleeve To replace the burner tip, which is desirable because of wear or to use a differently configured burner tip or cutting nozzle, the sleeve must be unscrewed and screwed again after inserting the new burner tip close to the burner head, which should be done carefully and can be cumbersome.
  • this cutting torch comprises a coupling for connecting the burner head to the cutting nozzle and the heating nozzle encompassing it.
  • the cutting torch is structurally complex.
  • a loose connection should be made, which should prevent the disengagement of the heating nozzle from the inner bore of the clutch when releasing the clutch from the burner head.
  • a memoriseinfräsung is provided on the outer surface of the heating nozzle, in which an O-ring is inserted, which is to engage in an inner groove in the clutch, so that the heating nozzle and the coupling can only be separated against the resistance of the O-ring.
  • the nozzle change is cumbersome because first the cutting nozzle and the heating nozzle are to be connected to the coupling before the assembled aggregate can be attached to the burner head.
  • the present invention is therefore an object of the invention to provide a cutting torch according to the preamble of claim 1, wherein the nozzle change with straightforward technical means faster to handle and still reliable.
  • the cutting torch according to the invention has the combination of the features specified in claim 1.
  • the feature of the cap-like heating nozzle is specified in claim 2.
  • a nozzle quick change system which allows a change of the cutting nozzle and the heating nozzle on the burner head without tools very quickly.
  • the nozzle change can thus be efficiently automated.
  • the required during operation of the cutting torch contact pressure of the heating nozzle to the burner head is expediently realized by the surface pressure of an O-ring in the vertical direction according to claim 1 by a lower outer shell portion of the burner head has a first annular bearing surface and an upper portion of the cap-like heating nozzle to the inside protruding second annular bearing surface, which is opposite to the first annular bearing surface, wherein an O-ring between the first annular bearing surface and the second annular bearing surface is arranged.
  • the provided for changing the nozzle quick release can be realized in a first embodiment according to claim 4 by at least one dowel pin protruding from a lower outer shell portion of the burner head, and by at least one bayonet groove in the upper portion of the cap-like heating nozzle or the outer cap, in which bayonet the Engaging pin engages.
  • a particularly reliable connection of the heating nozzle and the cutting nozzle with the Torch head according to claim 5 realized by the fact that protrude from the lower outer shell portion of the burner head two dowel pins diametrically opposite, and that inside the upper portion of the cap-like Schudüse two bayonet grooves are arranged at diametrically opposite locations, in which engage the dowel pins.
  • Both the first embodiment and the second embodiment of the quick release require no expensive locking mechanisms that would be operated at a nozzle change.
  • the bayonet groove or bayonet grooves are formed from a fixing body, which is fixed in the upper portion of the cap-like heating nozzle according to claim 6.
  • the bayonet groove (s) according to claim 7 when dimensioning the bayonet groove (s) according to claim 7 up to a quarter of the inner circumference of the upper portion of the cap-like heating nozzle or the outer cap, the cap-like heating nozzle or the outer nozzle for nozzle change by a quarter turn manually without tools are released from the burner head, the cutting nozzle can be easily pulled out. Analogously vice versa, the attachment of the cutting nozzle and the heating nozzle on the burner head by attaching these two parts from below under application of sufficient contact pressure and a quarter turn in the opposite sense as to To solve.
  • the dimensioning of the bayonet groove (s) according to claim 7 promotes a rapid change of cutting nozzle and / or heating nozzle both manually and automatically, especially in automated cutting in conjunction with flame cutting machines and / or cutting robots.
  • a lower outer shell portion of the burner head is provided with an external thread
  • an upper portion of the cap-like heating nozzle has an internal thread, which fits into the external thread of the burner head.
  • the thread has a sufficiently large pitch for quick change, which is possible by arranging an O-ring according to claim 1 between the burner head and the heating nozzle.
  • the cutting torch according to the invention can be realized according to claim 2 with a cap-like Bankdüsenan Aunt, which is a cap-like heating nozzle.
  • a cap-like Bankdüsenan Aunt which is a cap-like heating nozzle.
  • at least the first connecting member of the quick-acting fastener is fixed to the upper portion of the cap-like heating nozzle and the upper portion of the cap-like heating nozzle has the inwardly projecting second annular bearing surface opposite to the first annular bearing surface on the outer shell portion of the burner head.
  • the cap-like heating nozzle can be one-piece and therefore particularly low-priced and robust.
  • the first connection element of the quick release which cooperates with the second connecting element on the lower outer shell portion of the burner head, fixed to the outer cap inside.
  • the first annular bearing surface on the lower outer shell portion of the burner head in this case only indirectly opposite second annular bearing surface, which is formed from the outer cap, supports a collar at an upper portion of the heating nozzle.
  • On the collar a sealing bearing surface for the O-ring is formed, which is thus arranged between the first bearing surface and indirectly the second bearing surface.
  • the materials constituting the heating nozzle on the one hand and the outer cap on the other hand may be selected according to the requirements of these constituents of the cap-like heating nozzle arrangement, e.g. for the heating nozzle copper and for the outer cap steel.
  • each of a cylindrical sealing surface according to claim 9 is formed on the lower portion of the burner head and inside of the upper portion of the cap-like heating nozzle or the outer cap, wherein preferably according to claim 10, an O-ring between the two cylindrical sealing surfaces is arranged.
  • the insertable into the cutting nozzle receiving cylindrical upper portion of the cutting nozzle preferably carries according to claim 11, two O-rings in the axial distance, which not only the sealing of the cutting nozzle or the cutting oxygen channel is improved, but also the cutting nozzle is axially aligned in the cutting nozzle holder.
  • FIG. 1 How out FIG. 1 can be seen, a fixing 5 is fixedly inserted in an upper portion 4 of the cap-like heating nozzle, from which the diametrically opposite two bayonet grooves 6, 7 are formed.
  • the course of the bayonet groove 7 is in FIG. 4 shown in more detail.
  • In each of the two bayonet grooves 6, 7 each engage a dowel pin 8, 9, which protrudes from a lower outer shell portion 10 of the burner head 3.
  • the bayonet connection is reliably held tightly and tightly by an O-ring 11 which is disposed between a first annular bearing surface 1 2 at the lower outer shell portion 10 of the burner head 3 and a second annular bearing surface 13 at an upper portion 4 of the cap-like heating nozzle 2.
  • Another O-ring 15 is located between a cylindrical sealing surface 16 on the cap-like heating nozzle 2 and a cylindrical sealing surface 17 on the lower outer shell portion 10 of the burner head third
  • the cutting nozzle 1 has, as best of FIG. 3 can be seen, two axially spaced O-rings 18, 19 on a cylindrical upper portion 20 which is inserted in the assembled state of the cutting torch in a cutting nozzle holder 21.
  • the cutting nozzle 1 has in the lower conical sections outside longitudinal slots 22 which form fuel gas channels, which communicate with a nozzle chamber 23, the fuel gas or a fuel gas component through a line 24 is supplied.
  • the cutting oxygen supply to a cutting zone occurs through the cutting oxygen conduit 25 and a central cutting oxygen channel 26 about the vertical center axis 27.
  • FIGS. 5 and 6 31 denotes the cutting nozzle and 32 denotes the cap-like heating nozzle of a cutting torch.
  • a lower portion of the burner head bears the reference numeral 33.
  • a fixing body 35 is fixedly inserted, from which the diametrically opposite two bayonet grooves 36, 37 are formed.
  • the course of the bayonet groove 37 corresponds to that of the bayonet groove 7 in FIG. 4 .
  • In each of the two bayonet grooves 36, 37 each engage a dowel pin 38, 39, which protrudes from a lower outer shell portion 40 of the burner head 33.
  • the bayonet connection is reliably held firmly by an O-ring 41 disposed between a first annular bearing surface 42 on the lower outer shell portion 40 of the burner head 33 and a second annular bearing surface 43 on an upper portion 34 of the cap-like heating nozzle 32.
  • an O-ring 41 disposed between a first annular bearing surface 42 on the lower outer shell portion 40 of the burner head 33 and a second annular bearing surface 43 on an upper portion 34 of the cap-like heating nozzle 32.
  • cap-like heating nozzle 32 and the lower outer shell portion 40 of the burner head 33 can be made without cylindrical sealing surfaces in a favorable production.
  • the cutting nozzle 31 in turn, as in the embodiment in Figures 1 - 3 , two axially spaced O-rings 48, 49 on a cylindrical upper portion 50 which is inserted in the assembled state of the cutting torch in a cutting nozzle holder 51.
  • the cutting nozzle 31 has, in lower conical sections, outer longitudinal slots 52, which form fuel gas passages, which communicate with a nozzle chamber 53, the fuel gas or a fuel gas component through a line 54 is supplied.
  • the cutting oxygen supply to a cutting zone is through the cutting oxygen line 55 and a central cutting oxygen channel 56 around the vertical center line 55.
  • FIG. 7 61 denotes the cutting nozzle and 62 denotes the heating nozzle of a cutting torch in an outer cap 74 adapted to the outer shape of the heating nozzle 62.
  • the second annular bearing surface 103 supports a circumferential collar 106, which is formed in the heating nozzle projecting upwardly outward.
  • an annular sealing bearing surface 107 is formed, which receives an O-ring 101, in a circumferential groove 102.
  • the cap-like nozzle arrangement with the exception of the bayonet grooves 96, 97 rotationally symmetrical about the center axis 108 vertical in the position of use.
  • the bayonet grooves 96, 97 in Fig. 8 correspond.
  • each of the two bayonet grooves 66, 67 each engage a dowel pin 68, 69, which protrudes from a lower outer shell portion 70 of the burner head 63.
  • the bayonet connection in FIG. 7 is reliably held firmly by the O-ring 71, which between a first annular bearing surface 72 on the lower outer shell portion 70 of the burner head 63 and a in FIG. 7 unspecified sealing surface, corresponding to 107 in Fig. 8 , is arranged on top of the heating nozzle 62.
  • the pressure force acting on the O-ring 71 is conducted from the second bearing surface 73 of the outer cap 74 via the collar 76 of the heating nozzle 62 in the O-ring 71.
  • the inner space of the outer cap 74 enclosing the heating nozzle 62 is well sealed to the outside.
  • the cutting nozzle 61 also points in FIG. 7 two axially spaced O-rings 78, 79 on a cylindrical upper portion 80 which is inserted in the assembled state of the cutting torch in a cutting nozzle receptacle 81.
  • the cutting nozzle 61 has, in lower conical sections, outer longitudinal slots 82 which form fuel gas passages communicating with the nozzle space 83 to which fuel gas and fuel gas component, respectively, are supplied.
  • the cutting oxygen supply to a cutting zone occurs through the cutting oxygen conduit 85 and a central cutting oxygen passage 86 about the vertical center axis 87.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP08020388.8A 2007-11-23 2008-11-24 Chalumeau à couper doté d'une tête de brûleur recevant une buse échangeable Active EP2063177B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08020388T PL2063177T3 (pl) 2007-11-23 2008-11-24 Palnik do cięcia zawierający głowicę palnika, która przyjmuje wymienną dyszę tnącą

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007056795 2007-11-23

Publications (3)

Publication Number Publication Date
EP2063177A2 true EP2063177A2 (fr) 2009-05-27
EP2063177A3 EP2063177A3 (fr) 2013-03-13
EP2063177B1 EP2063177B1 (fr) 2014-11-12

Family

ID=40157766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08020388.8A Active EP2063177B1 (fr) 2007-11-23 2008-11-24 Chalumeau à couper doté d'une tête de brûleur recevant une buse échangeable

Country Status (3)

Country Link
EP (1) EP2063177B1 (fr)
DE (1) DE202007018625U1 (fr)
PL (1) PL2063177T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109631080A (zh) * 2019-01-30 2019-04-16 徐慕庆 一种自动点火装置
DE202021105760U1 (de) 2020-10-27 2022-02-01 Thermacut, K.S. Brennerbaugruppe sowie Brenner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021101382U1 (de) 2021-03-18 2022-03-21 Iht Automation Gmbh & Co. Kg Schweiß- oder Schneidbrenner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897884A (en) 1958-01-13 1959-08-04 Melvin E Fee Cutting torch tip construction
DE10144177B4 (de) 2001-09-07 2004-02-19 Messer Cutting & Welding Gmbh Schneidbrenner und dafür geeignetes Düsensystem für langsam verbrennende und für schnell verbrennende Brenngase

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897884A (en) 1958-01-13 1959-08-04 Melvin E Fee Cutting torch tip construction
DE10144177B4 (de) 2001-09-07 2004-02-19 Messer Cutting & Welding Gmbh Schneidbrenner und dafür geeignetes Düsensystem für langsam verbrennende und für schnell verbrennende Brenngase

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109631080A (zh) * 2019-01-30 2019-04-16 徐慕庆 一种自动点火装置
CN109631080B (zh) * 2019-01-30 2023-11-07 徐慕庆 一种自动点火装置
DE202021105760U1 (de) 2020-10-27 2022-02-01 Thermacut, K.S. Brennerbaugruppe sowie Brenner

Also Published As

Publication number Publication date
EP2063177A3 (fr) 2013-03-13
DE202007018625U1 (de) 2008-12-24
PL2063177T3 (pl) 2015-04-30
EP2063177B1 (fr) 2014-11-12

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