EP0533151A1 - Pince à électrode pour fours à arc - Google Patents

Pince à électrode pour fours à arc Download PDF

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Publication number
EP0533151A1
EP0533151A1 EP92115902A EP92115902A EP0533151A1 EP 0533151 A1 EP0533151 A1 EP 0533151A1 EP 92115902 A EP92115902 A EP 92115902A EP 92115902 A EP92115902 A EP 92115902A EP 0533151 A1 EP0533151 A1 EP 0533151A1
Authority
EP
European Patent Office
Prior art keywords
electrode
support arm
cylinders
symmetrically
electrode support
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
EP92115902A
Other languages
German (de)
English (en)
Other versions
EP0533151B1 (fr
Inventor
Herbert Dung
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.)
Flohe GmbH and Co
Original Assignee
Flohe GmbH and Co
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 Flohe GmbH and Co filed Critical Flohe GmbH and Co
Publication of EP0533151A1 publication Critical patent/EP0533151A1/fr
Application granted granted Critical
Publication of EP0533151B1 publication Critical patent/EP0533151B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
    • H05B7/103—Mountings, supports or terminals with jaws

Definitions

  • the invention relates to an electrode support arm of the type outlined in the preamble of claim 1.
  • Such an electrode arm is described for example in DE-OS 34 43 574.
  • a clamping bracket starting from the electrode support arm is provided for the clamping of the electrode and the associated pressing of the electrode against the contact jaw, which is tightened against the electrode with clamping means embedded in the electrode support arm.
  • the mechanism for tensioning the clamping bracket and in particular then the unit required for this, usually a hydraulic cylinder, are accommodated in the electrode support arm.
  • the electrode support arm must be dimensioned accordingly bulky.
  • the object of the invention is to propose a more favorable electrode clamping.
  • the electrode support arm is assigned a torsionally stiff bracket fixed in position as an electrode receptacle, in which hydraulically actuatable cylinders are embedded on the side facing away from the contact jaw symmetrically to the longitudinal axis of the support arm, the piston rods of which are oriented towards the center of the receptacle into an electrode to be clamped against the electrode leak the coming clamping piece.
  • hydraulically actuatable cylinders are embedded on the side facing away from the contact jaw symmetrically to the longitudinal axis of the support arm, the piston rods of which are oriented towards the center of the receptacle into an electrode to be clamped against the electrode leak the coming clamping piece.
  • two cylinders spaced from one another are provided symmetrically to the longitudinal axis of the support arm, which on the one hand stabilize the vertical clamping of the electrode and on the other hand, in conjunction with adjustable contact jaws, open up the possibility of using non-rotated electrodes.
  • the electrode clamping according to the invention makes it possible to provide electrode support arms with smaller cross sections.
  • the space in the hollow electrode support arm may then also be available for other purposes.
  • the adjustment mechanism is less complex.
  • the cylinders provided according to the invention for clamping the electrode are otherwise easily accessible and can therefore be easily replaced if necessary.
  • the contact jaw 12 is seated, in which contact pieces 121, 122 are mounted for adjustment on a radius corresponding to the radius of the electrode 31 symmetrically to the longitudinal axis 111 of the support arm.
  • An integral part of the support arm 11 is furthermore the torsionally stiff bracket 21 attached to its end face, in which cylinders 22, 23 are also symmetrically embedded with the support arm longitudinal axis 111, the piston rods 221 of which are oriented towards the center of the bracket 21 and against the electrode 31 Coming coming clamping pieces 223 with the electrode 31 adapted contact surface.
  • the cylinder pistons 221 are covered by a spring assembly 224, which cause the piston 221 to extend and thus cause the clamping pieces 223 to move against the electrode 31 via the piston rod 222.
  • the annular space 226 of the cylinder is pressurized via the pressure medium line 227, so that the piston retracts against the action of the adjusting spring 224 and the clamping piece 223 lifts off the electrode 31.
  • the pressure medium line 227 is guided along the electrode support arm 11 and further to the control station, from where the cylinders 22, 23 are actuated if necessary.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Furnace Details (AREA)
  • Discharge Heating (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
EP92115902A 1991-09-18 1992-09-17 Pince à électrode pour fours à arc Expired - Lifetime EP0533151B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4131044A DE4131044A1 (de) 1991-09-18 1991-09-18 Bestandteil eines elektrodentragarms bildende einspannung fuer die elektrode
DE4131044 1991-09-18

Publications (2)

Publication Number Publication Date
EP0533151A1 true EP0533151A1 (fr) 1993-03-24
EP0533151B1 EP0533151B1 (fr) 1995-06-21

Family

ID=6440894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115902A Expired - Lifetime EP0533151B1 (fr) 1991-09-18 1992-09-17 Pince à électrode pour fours à arc

Country Status (3)

Country Link
EP (1) EP0533151B1 (fr)
AT (1) ATE124200T1 (fr)
DE (2) DE4131044A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10311426B4 (de) * 2002-12-20 2016-06-16 Arndt Dung Einspannung für eine auswechselbare Elektrode eines Elektroschmelzaggregats
DE10239470A1 (de) * 2002-08-28 2004-03-11 Arndt Dung Verfahren und Vorrichtungen zur Überwachung des von einem Anstellzylinder herrührenden, eine auswechselbare Elektrode am Elektrodentragarm festlegenden Spanndrucks
DE10261162B4 (de) * 2002-12-20 2016-03-10 Arndt Dung Einspannung für die auswechselbare Elektrode eines Elektroschmelzaggregats

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165783B (de) * 1954-01-11 1964-03-19 Demag Elektrometallurgie Gmbh Elektrodenhaltevorrichtung
DE1263200B (de) * 1954-10-13 1968-03-14 Knapsack Ag Tieffassung fuer Elektroden elektrischer OEfen
US3444305A (en) * 1968-06-13 1969-05-13 Alfred H Turner Electrode head for electric furnace electrodes
US3686421A (en) * 1971-08-30 1972-08-22 Edgar Wunsche Unitized electride holder and arm for electric arc furnace electrodes or the like
US3804966A (en) * 1972-07-07 1974-04-16 British Steel Corp Furnace electrode clamp
US4182927A (en) * 1978-08-04 1980-01-08 Dixie Bronze Company Electrode holders having differential clamping devices

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165783B (de) * 1954-01-11 1964-03-19 Demag Elektrometallurgie Gmbh Elektrodenhaltevorrichtung
DE1263200B (de) * 1954-10-13 1968-03-14 Knapsack Ag Tieffassung fuer Elektroden elektrischer OEfen
US3444305A (en) * 1968-06-13 1969-05-13 Alfred H Turner Electrode head for electric furnace electrodes
US3686421A (en) * 1971-08-30 1972-08-22 Edgar Wunsche Unitized electride holder and arm for electric arc furnace electrodes or the like
US3804966A (en) * 1972-07-07 1974-04-16 British Steel Corp Furnace electrode clamp
US4182927A (en) * 1978-08-04 1980-01-08 Dixie Bronze Company Electrode holders having differential clamping devices

Also Published As

Publication number Publication date
DE59202604D1 (de) 1995-07-27
ATE124200T1 (de) 1995-07-15
EP0533151B1 (fr) 1995-06-21
DE4131044A1 (de) 1993-03-25

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