DE10311426B4 - Clamping for a replaceable electrode of an electrofusion unit - Google Patents
Clamping for a replaceable electrode of an electrofusion unit Download PDFInfo
- Publication number
- DE10311426B4 DE10311426B4 DE10311426.2A DE10311426A DE10311426B4 DE 10311426 B4 DE10311426 B4 DE 10311426B4 DE 10311426 A DE10311426 A DE 10311426A DE 10311426 B4 DE10311426 B4 DE 10311426B4
- Authority
- DE
- Germany
- Prior art keywords
- clamping
- clamping cylinder
- cylinder
- electrode
- pressure
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Discharge Heating (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Die Erfindung betrifft eine Einspannung für eine auswechselbare Elektrode eines Elektroschmelzaggregats bestehend aus einer am freien Ende des Elektrodentragarms befindlichen Kontaktbacke, einem am freien Ende des Tragarms geführten, die Elektrode umfassenden Spannbügel und einem im Tragarm gelagerten Spannzylinder, dessen am Spannbügel angreifende Kolbenstange unter der Einwirkung eines im Ringraum des Spannzylinders befindlicher, Federpakets, den Spannbügel klemmend gegen die von ihm umfangene Elektrode zur Anlage bringt, mit einem bodenseitigen Anschluss für die Einspeisung von Druckmittel in den bodenseitigen Zylinderraum des Spannzylinders zum Lösen des Spannbügels, wobei sich der Spannzylinder lösbar in einer im Tragarm befindlichen, den Spannzylinder lageorientiert aufnehmenden Aufnahme befindet, die mit einem ihr lösbar zugeordneten Deckel versehen ist, der von einem am Boden des Spannzylinders angreifenden, durchgängigen, gegenüber Deckel in axialer Richtung verlagerbaren Gewindebolzen durchsetzt ist, auf dessen Überstand über den Deckel sich eine Spannmutter in Gewindeeingriff befindet, nach der
Nach dem Stand der Technik, wie auch in der
Betriebes vorliegt, bedarf es in regelmäßigen Abständen der Überprüfung der Spannkraft dergestalt, dass bei aus der Elektrodenaufnahme entnommener Elektrode ein auf die Elektrode und damit dann auch auf die Aufnahme ausgelegter Spanndruckmesser in die Elektrodenaufnahme überführt wird und der bzw. die Zylinder angestellt wird/werden. Diese Art und Weise der Überwachung ist zu Lasten des laufenden Betriebes relativ zeitaufwendig, sie schließt auch ein Lösen der eingespannten Elektrode während des laufenden Betriebes bei zunächst nicht festgestelltem Druckabfall mit entsprechenden Konsequenzen für den Betriebsablauf nicht aus.Operation is present, it requires at regular intervals the review of the clamping force such that when taken from the electrode holder electrode on the electrode and thus then on the recording designed clamping pressure gauge is transferred to the electrode holder and / or the cylinder is employed. This way of monitoring is at the expense of ongoing operation relatively time consuming, it also excludes a release of the clamped electrode during operation at initially not detected pressure drop with corresponding consequences for the operation.
Aus der
Der Erfindung liegt vor diesem Hintergrund die Aufgabe zugrunde, die Möglichkeit einer zuverlässigen und unempfindlichen Überwachung der Spannkraft der die Einspannung der Elektrode in der Elektrodenaufnahme bewirkenden Druckfedern im laufenden Betrieb zu eröffnen.The invention is based on the object to open the possibility of a reliable and insensitive monitoring of the clamping force of the clamping of the electrode in the electrode holder effecting compression springs during operation.
Diese Aufgabe wird bei einer gattungsgemäßen Einspannung für die auswechselbare Elektrode eines Elektroschmelzaggregats dadurch gelöst, dass
zwischen dem den Spannzylinder gegenüber der Aufnahme festlegenden Deckel und der auf dem Überstand des Gewindebolzens über den Deckel befindlichen Spannmutter eine vom Gewindebolzen durchsetzte Druckmessdose angeordnet wird, durch die der die Einspannung der Elektrode am freien Ende des Elektrodentragarms bewirkende Einspanndruck überwacht und bei kritischem Druckabfall ein elektrischer Impuls an eine ofenferne Messwertanzeige vorzugsweise leitungsgebunden übermittelt wird.This object is achieved in a generic clamping for the replaceable electrode of an electric melting unit characterized in that
between the clamping cylinder defining the receptacle lid and located on the supernatant of the threaded bolt on the lid clamping nut a penetrated by threaded bolt pressure cell is arranged, monitored by the clamping of the electrode at the free end of the Elektrodentragarms causing clamping pressure and at critical pressure drop an electrical Pulse is transmitted to a furnace remote reading display preferably wired.
Durch den elektrischen Impuls wird über eine reine Aufschreibung hinausgehend ein akustisches und/oder optisches Signal ausgelöst. Dabei kann eine stufenweise Signalgabe bei fortschreitendem Druckabfall vorgesehen sein.The electrical impulse triggers an acoustic and / or optical signal beyond a mere recording. In this case, a gradual signaling can be provided with progressive pressure drop.
Auch wenn der leitungsgebundenen Übermittlung der Impulse bzw. Signale an die ofenferne Messwertanzeige der Vorzug zu geben ist, besteht alternativ die Möglichkeit der leitungslosen Übermittlung über einen der Druckmessdose zugeordneten, akkugespeisten Sender und einen der ofenfernen Messwertanzeige zugeordneten Empfänger.Even if the line-bound transmission of the pulses or signals to the furnace remote measurement value display is to give preference, there is alternatively the possibility of wireless transmission via one of the pressure cell associated, battery-powered transmitter and a remotely associated with the measured value display receiver.
In der Zeichnung ist die Erfindung anhand eines in ganz schematischer Weise dargestellten Ausführungsbeispiels weitergehend erläutert. Es zeigen:In the drawing, the invention with reference to an embodiment shown in a very schematic manner is further explained. Show it:
In
Der in einer im Tragarmkopfstück
Diese Art und Weise der Fixierung des Spannzylinders
Ein nicht vorveröffentlichter Vorschlag zur Überwachung der Elektrodeneinspannung sieht die Installation einer Druckmessdose im Spannzylinder vor, durch die die aktuelle Federspannung und/oder fortgeschrittene Ermüdung des die Anstellung des Spannbügels bewirkenden Federpakets anzeigt, eine Anzeige, die es ermöglichen soll, den Spannzylinder bis zum anstehenden Unterschreiten des erforderlichen Einspanndrucks einzusetzen, ohne das Risiko des Lösens der eingespannten Elektrode im laufenden Betrieb, also während der Schmelzphase, einzugehen. Die Integrierung der Druckmessdose in den Spannzylinder lässt praktisch nur die leitungslose Übertragung der auf die Druckmessdose zurückgehenden Messwerte an eine ofenferne Messwertanzeige zu, was die Zuordnung eines Senders und einer Energiequelle zur Druckmessdose erforderlich macht.A not pre-published proposal for monitoring the Elektrodeneinspannung provides for the installation of a pressure cell in the clamping cylinder through which indicates the current spring tension and / or advanced fatigue of the employment of the tensioner causing spring package, a display that should allow the clamping cylinder to the pending below the required Einspanndrucks without the risk of loosening the clamped electrode during operation, ie during the melting phase, enter. The integration of the pressure cell in the clamping cylinder allows virtually only the wireless transmission of the results on the pressure cell measuring values to a remotely measured value display, which requires the assignment of a transmitter and an energy source to the pressure cell.
Die aus
Von dem aus
Claims (5)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10311426.2A DE10311426B4 (en) | 2002-12-20 | 2003-03-13 | Clamping for a replaceable electrode of an electrofusion unit |
DE50312058T DE50312058D1 (en) | 2002-08-28 | 2003-08-28 | METHOD AND DEVICES FOR MONITORING ANY ADJUSTING CYLINDER TO AN INTERCHANGEABLE ELECTRODE AT THE ELECTRODEARM SUPPORT |
EP03794958A EP1537372B1 (en) | 2002-08-28 | 2003-08-28 | Methods and devices for monitoring a clamping pressure, which is exerted by an actuating cylinder and fixes an interchangeable electrode to the electrode support arm |
AT03794958T ATE446492T1 (en) | 2002-08-28 | 2003-08-28 | METHOD AND DEVICE FOR MONITORING THE Clamping PRESSURE COME FROM AN ADJUSTING CYLINDER DETERMINING A REPLACEABLE ELECTRODE ON THE ELECTRODE SUPPORT ARM |
ES03794958T ES2332270T3 (en) | 2002-08-28 | 2003-08-28 | PROCEDURES AND DEVICES FOR THE CONTROL OF THE CLAMP PRESSURE THAT CAUSES AN ADJUSTMENT CYLINDER AND THAT SETS AN INTERCHANGEABLE ELECTRODE ON THE ELECTRODE HOLDING ARM. |
PCT/EP2003/009530 WO2004025202A1 (en) | 2002-08-28 | 2003-08-28 | Methods and devices for monitoring a clamping pressure, which is exerted by an actuating cylinder and fixes an interchangeable electrode to the electrode support arm |
ES03029528T ES2302893T3 (en) | 2002-12-20 | 2003-12-20 | HOLDING DEVICE FOR THE INTERCHANGEABLE ELECTRODE OF AN ELECTRIC FOUNDING OVEN. |
DE50309406T DE50309406D1 (en) | 2002-12-20 | 2003-12-20 | Clamping for the replaceable electrode of an electrofusion unit |
AT03029528T ATE390032T1 (en) | 2002-12-20 | 2003-12-20 | CLAMPING FOR THE REPLACEABLE ELECTRODE OF AN ELECTRIC MELTING UNIT |
EP03029528A EP1432291B1 (en) | 2002-12-20 | 2003-12-20 | Clamping device for changeable electrode of an electric furnace |
US11/074,240 US7194917B2 (en) | 2002-08-28 | 2005-02-23 | Method and devices for monitoring the clamping pressure, originating from an adjusting cylinder and fixing an exchangeable electrode at the electrode-supporting arm |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10261162.9A DE10261162B4 (en) | 2002-12-20 | 2002-12-20 | Clamping for the replaceable electrode of an electrofusion unit |
DE10311426.2A DE10311426B4 (en) | 2002-12-20 | 2003-03-13 | Clamping for a replaceable electrode of an electrofusion unit |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10311426A1 DE10311426A1 (en) | 2004-09-23 |
DE10311426B4 true DE10311426B4 (en) | 2016-06-16 |
Family
ID=32395036
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10311426.2A Expired - Lifetime DE10311426B4 (en) | 2002-08-28 | 2003-03-13 | Clamping for a replaceable electrode of an electrofusion unit |
DE50309406T Expired - Lifetime DE50309406D1 (en) | 2002-12-20 | 2003-12-20 | Clamping for the replaceable electrode of an electrofusion unit |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE50309406T Expired - Lifetime DE50309406D1 (en) | 2002-12-20 | 2003-12-20 | Clamping for the replaceable electrode of an electrofusion unit |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1432291B1 (en) |
AT (1) | ATE390032T1 (en) |
DE (2) | DE10311426B4 (en) |
ES (1) | ES2302893T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2876548C (en) | 2012-06-28 | 2018-04-17 | Jacques Venter | Electrode clamping device |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3010894C2 (en) * | 1980-03-21 | 1985-12-12 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | Electrode support arm with opening device for clamping jaws of electric arc furnaces |
DE3422950C2 (en) * | 1983-06-23 | 1987-09-17 | Mannesmann Ag, 4000 Duesseldorf, De | |
DE3242934C2 (en) * | 1982-11-20 | 1987-10-01 | Mannesmann Rexroth Gmbh, 8770 Lohr, De | |
DE8805807U1 (en) * | 1988-05-02 | 1989-08-31 | Kark, Uwe, 2104 Hamburg, De | |
DE9206611U1 (en) * | 1992-05-15 | 1992-07-16 | Kark, Uwe, 2104 Hamburg, De | |
DE4131044A1 (en) * | 1991-09-18 | 1993-03-25 | Flohe Gmbh & Co | COMPONENT OF AN ELECTRODETARM ARM FORMING THE ELECTRODE |
DE69112744T2 (en) * | 1990-07-23 | 1996-02-22 | Danieli Off Mecc | Method and device for controlling the force on the electrode support arms for an arc furnace. |
DE19526161C2 (en) * | 1995-07-11 | 1997-05-07 | Mannesmann Ag | Method and device for controlling the electrode stroke |
DE10261162A1 (en) * | 2002-12-20 | 2004-07-08 | Arndt Dung | Clamp for replaceable electrode of electronic fusing aggregate has clamping cylinder provided in electrode carrier arm and is fixed by recess that is removably located in carrier arm |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE946303C (en) * | 1944-01-29 | 1956-07-26 | Bbc Brown Boveri & Cie | Electrode support device for electric arc furnaces with an air-cooled electrode holder |
US3937869A (en) * | 1974-10-08 | 1976-02-10 | Republic Steel Corporation | Force sensing control apparatus and method for electric arc furnaces |
US4653066A (en) * | 1984-04-11 | 1987-03-24 | Dixie Arc, Inc. | Electrode holder assembly and electrode clamp for electric arc furnaces |
JPH05258858A (en) * | 1992-03-13 | 1993-10-08 | Daido Steel Co Ltd | Electrode supporting device |
JPH10291105A (en) * | 1997-04-18 | 1998-11-04 | Toyota Motor Corp | Tool clamping force measuring device |
-
2003
- 2003-03-13 DE DE10311426.2A patent/DE10311426B4/en not_active Expired - Lifetime
- 2003-12-20 ES ES03029528T patent/ES2302893T3/en not_active Expired - Lifetime
- 2003-12-20 EP EP03029528A patent/EP1432291B1/en not_active Expired - Lifetime
- 2003-12-20 AT AT03029528T patent/ATE390032T1/en active
- 2003-12-20 DE DE50309406T patent/DE50309406D1/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3010894C2 (en) * | 1980-03-21 | 1985-12-12 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | Electrode support arm with opening device for clamping jaws of electric arc furnaces |
DE3242934C2 (en) * | 1982-11-20 | 1987-10-01 | Mannesmann Rexroth Gmbh, 8770 Lohr, De | |
DE3422950C2 (en) * | 1983-06-23 | 1987-09-17 | Mannesmann Ag, 4000 Duesseldorf, De | |
DE8805807U1 (en) * | 1988-05-02 | 1989-08-31 | Kark, Uwe, 2104 Hamburg, De | |
DE69112744T2 (en) * | 1990-07-23 | 1996-02-22 | Danieli Off Mecc | Method and device for controlling the force on the electrode support arms for an arc furnace. |
DE4131044A1 (en) * | 1991-09-18 | 1993-03-25 | Flohe Gmbh & Co | COMPONENT OF AN ELECTRODETARM ARM FORMING THE ELECTRODE |
EP0533151B1 (en) * | 1991-09-18 | 1995-06-21 | Flohe GmbH & Co | Clamping arm for arc furnace electrode |
DE9206611U1 (en) * | 1992-05-15 | 1992-07-16 | Kark, Uwe, 2104 Hamburg, De | |
DE19526161C2 (en) * | 1995-07-11 | 1997-05-07 | Mannesmann Ag | Method and device for controlling the electrode stroke |
DE10261162A1 (en) * | 2002-12-20 | 2004-07-08 | Arndt Dung | Clamp for replaceable electrode of electronic fusing aggregate has clamping cylinder provided in electrode carrier arm and is fixed by recess that is removably located in carrier arm |
Also Published As
Publication number | Publication date |
---|---|
ATE390032T1 (en) | 2008-04-15 |
EP1432291A1 (en) | 2004-06-23 |
DE10311426A1 (en) | 2004-09-23 |
ES2302893T3 (en) | 2008-08-01 |
EP1432291B1 (en) | 2008-03-19 |
DE50309406D1 (en) | 2008-04-30 |
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