EP0501172A1 - Antrieb für automatische Lanzenwechselvorrichtungen - Google Patents

Antrieb für automatische Lanzenwechselvorrichtungen Download PDF

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Publication number
EP0501172A1
EP0501172A1 EP92101734A EP92101734A EP0501172A1 EP 0501172 A1 EP0501172 A1 EP 0501172A1 EP 92101734 A EP92101734 A EP 92101734A EP 92101734 A EP92101734 A EP 92101734A EP 0501172 A1 EP0501172 A1 EP 0501172A1
Authority
EP
European Patent Office
Prior art keywords
lance
drive
wheels
coupling head
lifting spindle
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.)
Withdrawn
Application number
EP92101734A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hubert Stomp
Daniel Fries
Serge Devillet
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.)
Paul Wurth SA
Original Assignee
Paul Wurth SA
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 Paul Wurth SA filed Critical Paul Wurth SA
Publication of EP0501172A1 publication Critical patent/EP0501172A1/de
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/462—Means for handling, e.g. adjusting, changing, coupling

Definitions

  • the invention relates to a drive for automatic lance changing devices, in particular for lances to be coupled and fastened to a vertically movable lance carrier sled in the steelmaking process, an coupling head on the lance carrier sled being supplied with the materials required for freshening, and optionally also a cooling fluid, and on the Coupling point between the coupling head and the upper part of the lance are transferred, and such a lance changing device has a lance receiving hook, which can be pivoted about a horizontal axis of rotation and is assigned to the lance slide, on both sides of the vertical axis of the lance carrier slide - coupling head, means for synchronously vertical displacement of these hooks relative to the slide and the coupling head, Means which, when the hooks are shifted, cause them to pivot about their axis of rotation, and means which act on each hook nd load to be measured, the latter function of the force with which the upper part of the lance is pressed against the coupling head by the hook.
  • a drive of the type mentioned at the outset characterized by a lifting spindle system, with the aid of which a vertically displaceable suspension ring for upper lance suspension hooks is driven, this lifting spindle system consisting of at least two tie rods, the upper extremities of which are provided with an external movement thread, at least two gear wheels, the hubs of which are provided with a corresponding internal thread for cooperation with the upper extremities, the gear wheels being axially / radially in a gear housing are mounted, which in turn rests on load cells for automatically switching off the lifting spindle drive when a predetermined contact force is reached between the upper part of the lance and a coupling head.
  • 6 is a vertically displaceable support ring (corresponding to support ring 36 in the reference document), which is guided on a coupling head 8 and on which lance receiving hooks 10, 10 '(corresponding to hooks 16, 16' in said document) are pivotably suspended.
  • the pivotal movement is generated when the ring 6 is displaced by connecting rods 12, 12 ', which are pivotally suspended with their upper extremities at fixed lugs 14, 14' integral with the coupling head 8.
  • the axial displacement of the ring 6 takes place according to the invention with the aid of two tie rods 16, 16 ', which extend into a gear housing 18 and interact there with worm wheels 20, 20', these parts forming a spindle system 22, 22 'with an external thread on the upper ones Extremities 24, 24 'of the tie rods 16, 16' and internal threads in the bores of the worm wheels 20, 20 '.
  • the systems tie rods / worm wheels accordingly form a lifting spindle system with an effect analogous to that of the systems 43 in the document mentioned.
  • the drive system according to the invention for the automatic lance changing device is accomplished by means of an electric motor 28 with an angular gear 30 connected downstream.
  • an electric motor 28 with an angular gear 30 connected downstream.
  • this electric motor 28 can of course also be flanged to the transmission housing 18 directly or via a so-called lantern.
  • a hydraulic or pneumatic system can of course also be used as the drive source instead of the electric motor 28 shown for illustration.
  • the lifting spindle drive is also stopped in the system according to the invention when a predetermined contact pressure of the upper part of the lance 32 against the coupling head 8 is reached.
  • the lifting spindle gear housing 18 is supported on two load cells 34, 34 ', which switch off the drive motor when this contact force is reached.
  • top view according to FIG. 4 illustrates particularly clearly how much the access to the coupling head 8 is now made easier compared to the embodiment according to the above-mentioned document, with a corresponding simplification of the laying of the said fresh material line system 40.
  • the lifting spindle drive was designed as a worm gear for the sake of illustration. It goes without saying that any other mechanical drive can be used in which the two lifting spindles are driven synchronously, e.g. a chain wheel drive with the ratio 1: 1 between the two spindles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Gear Transmission (AREA)
EP92101734A 1991-03-01 1992-02-03 Antrieb für automatische Lanzenwechselvorrichtungen Withdrawn EP0501172A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU87897A LU87897A1 (de) 1991-03-01 1991-03-01 Antrieb fuer automatische lanzenwechselvorrichtungen
LU87897 1991-03-01

Publications (1)

Publication Number Publication Date
EP0501172A1 true EP0501172A1 (de) 1992-09-02

Family

ID=19731281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92101734A Withdrawn EP0501172A1 (de) 1991-03-01 1992-02-03 Antrieb für automatische Lanzenwechselvorrichtungen

Country Status (8)

Country Link
US (1) US5217674A (cs)
EP (1) EP0501172A1 (cs)
JP (1) JPH05331520A (cs)
AU (1) AU1134792A (cs)
BR (1) BR9200798A (cs)
CA (1) CA2062167A1 (cs)
LU (1) LU87897A1 (cs)
TW (1) TW212205B (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2682397A1 (fr) * 1991-10-14 1993-04-16 Wurth Paul Sa Dispositif d'entrainement pour appareillages automatiques de changement de lances.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU88056A1 (de) * 1992-01-24 1993-08-17 Paul Wurth S.A. Vorrichtung zur medienversorgung einer blaslanze
DE19541199C2 (de) * 1995-11-04 2001-05-23 Thyssen Stahl Ag Wechselvorrichtung für eine Blaslanze

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056942A2 (de) * 1981-01-26 1982-08-04 Paul Wurth S.A. Vorrichtung zur Halterung und zum Wechseln von Tauchlanzen
EP0112540A1 (de) * 1982-12-21 1984-07-04 Paul Wurth S.A. Anlage zum Führen und Wechseln von Tauchlanzen
DE3828928A1 (de) * 1987-09-07 1989-03-23 Wurth Paul Sa Automatische lanzenwechselvorrichtung
WO1990005790A1 (de) * 1988-11-16 1990-05-31 Paul Wurth S.A. Automatische lanzenwechselvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056942A2 (de) * 1981-01-26 1982-08-04 Paul Wurth S.A. Vorrichtung zur Halterung und zum Wechseln von Tauchlanzen
EP0112540A1 (de) * 1982-12-21 1984-07-04 Paul Wurth S.A. Anlage zum Führen und Wechseln von Tauchlanzen
DE3828928A1 (de) * 1987-09-07 1989-03-23 Wurth Paul Sa Automatische lanzenwechselvorrichtung
WO1990005790A1 (de) * 1988-11-16 1990-05-31 Paul Wurth S.A. Automatische lanzenwechselvorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2682397A1 (fr) * 1991-10-14 1993-04-16 Wurth Paul Sa Dispositif d'entrainement pour appareillages automatiques de changement de lances.
BE1006279A3 (fr) * 1991-10-14 1994-07-12 Wurth Paul Sa Dispositif d'entrainement pour appareillages automatiques de changement de lances.

Also Published As

Publication number Publication date
LU87897A1 (de) 1992-11-16
AU1134792A (en) 1992-09-03
BR9200798A (pt) 1992-11-17
US5217674A (en) 1993-06-08
TW212205B (cs) 1993-09-01
CA2062167A1 (en) 1992-09-02
JPH05331520A (ja) 1993-12-14

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