EP3613519B1 - Élément de guidage de barre d'une installation de coulée continue - Google Patents

Élément de guidage de barre d'une installation de coulée continue Download PDF

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Publication number
EP3613519B1
EP3613519B1 EP19185916.4A EP19185916A EP3613519B1 EP 3613519 B1 EP3613519 B1 EP 3613519B1 EP 19185916 A EP19185916 A EP 19185916A EP 3613519 B1 EP3613519 B1 EP 3613519B1
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EP
European Patent Office
Prior art keywords
hydraulic cylinder
housing element
bearing
guide segment
cylinder unit
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.)
Active
Application number
EP19185916.4A
Other languages
German (de)
English (en)
Other versions
EP3613519A1 (fr
Inventor
Axel Stavenow
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.)
SMS Group GmbH
Original Assignee
SMS Group GmbH
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Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3613519A1 publication Critical patent/EP3613519A1/fr
Application granted granted Critical
Publication of EP3613519B1 publication Critical patent/EP3613519B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing

Definitions

  • the invention relates to a strand guide segment of a continuous caster, comprising an upper frame and a lower frame, hydraulic cylinder units for adjusting the distance between the upper frame and the lower frame being arranged between the upper frame and the lower frame, a part of the hydraulic cylinder unit being connected to the upper frame via a first bearing point and part of the hydraulic cylinder unit is connected to the subframe via a second bearing point.
  • a strand guide segment of the generic type is from DE 19 63 146 C1 known.
  • the segment is formed by an upper frame and a lower frame opposite this, with hydraulic cylinder units being provided for the purpose of setting a defined distance between the upper frame and the lower frame and thereby a strand thickness of a strand to be guided through the strand guide segment, with which the spacing is kept at a desired value in a position-controlled manner can be.
  • a similar solution is disclosed WO 2006/050868 A1 .
  • Position-controlled hydraulic cylinders for adjusting the format thickness of the strand are previously known.
  • the upper frame and the lower frame must be separated or decoupled from one another. To do this, the respective bearings of the hydraulic cylinder units on the upper frame or on the lower frame must be opened.
  • the invention has the object of designing a generic strand guide segment so that a backlash possible connection of the upper frame is given to the sub-frame of a segment, but a simple opening of the storage is possible. This is intended to simplify the maintenance of the segment. Furthermore, the accuracy of the strand thickness set by the segment should be increased.
  • At least one of the bearing points comprises: a bearing with at least one inner ring and at least one outer ring, part of the hydraulic cylinder unit being connected to the at least one inner ring, and a housing element in which the at least an outer ring is arranged, wherein a radially widening flange is arranged on the housing element, wherein the housing element is fastened (in particular screwed) to the upper frame or the lower frame by means of the flange.
  • the housing element is preferably fastened to the upper frame by means of the flange.
  • the bearing preferably has two inner rings and two outer rings, a radially widened section of the part of the hydraulic cylinder unit being arranged between the two inner rings. It is preferably provided that the two outer rings are arranged axially spaced apart in the housing element and are preferably axially fixed by radially inwardly projecting sections of the housing element.
  • the bearing is preferably designed as an axial sliding bearing.
  • a convex bearing surface of the inner ring is preferably in contact with a concave bearing surface of the outer ring.
  • the housing element with the bearing rings located in it is preferably designed as an encapsulated unit.
  • a sensor for detecting the displacement between the piston and cylinder of the hydraulic cylinder unit is preferably arranged on or in the housing element.
  • a preferred embodiment of the invention provides that the sensor is arranged on or in the housing element in the area of the longitudinal axis of the hydraulic cylinder unit. It is particularly preferably provided that the sensor is designed to detect the movement of a rigid measuring rod which is connected to the piston of the hydraulic cylinder unit.
  • the present invention relates to the arrangement of the axial bearings in an encapsulated bearing block which has a base plate (flange) with which the cylinder unit can be connected to the upper frame of the segment with little play.
  • the position measurement sensor is mounted centrally in the pull rod of the hydraulic cylinder unit above the cylinder unit.
  • a segment for strand guidance in a continuous casting plant is made available, which is characterized by a low-play connection of the upper frame to the lower frame of the segment.
  • the result is advantageously the minimization of the deviation between the results from the measurements with a "roll gap checker" in relation to the format thicknesses set due to the bearing of the cylinder unit with little play.
  • the position of the sensor for position measurement in the middle above the drawbar enables sensors with a rigid measuring rod to be used. This position of the sensor for position measurement also enables easy maintenance of the sensor in the system without dismantling the segment.
  • a strand guide segment 1 is shown, which consists of an upper frame 2 and a lower frame 3.
  • the lower frame 3 can be adjusted relative to the upper frame 2, for which a number of hydraulic cylinder units 4 are provided.
  • the hydraulic cylinder units 4 are position-controlled so that a precise distance between the upper frame 2 and the lower frame 3 can be set and maintained.
  • the second, lower bearing point 5 is implemented in the present case in the usual manner by a bolt 17 which fixes a pivot bearing 20 between the tie rod 18 and the subframe 3.
  • the first bearing point 5, with which the hydraulic cylinder unit 4 is fixed to the upper frame 2 is designed in a special way:
  • Said bearing point 5 comprises a bearing 7 which, in the exemplary embodiment, has two inner rings 8 and 9 and two outer rings 10 and 11.
  • the bearing 7 is designed in the manner of an axial sliding bearing.
  • Part of the hydraulic cylinder unit 4 is connected to the two inner rings 8 and 9 in such a way that a radially widened section 14 of a part of the hydraulic cylinder unit 4 is axially enclosed by the two inner rings 8, 9 (see FIG Figure 2 ).
  • the two outer rings 10 and 11 are, however, arranged in a hollow cylindrical housing element 12 at an axial distance and fixed in this, the housing element 12 forming a closed position unit which supports the axial end of the pull rod 21 of the hydraulic cylinder unit 4.
  • Fixed to the housing element 12 is a flange 13, which is fastened with a number of screws 24 (see FIG Figure 1 ) is attached to the upper frame 2.
  • the piston 22 of the hydraulic cylinder unit 4 is connected to a piston rod 23 which is connected to the lower tie rod 18 by means of a flange device 19.
  • a sensor 15 is provided, which is arranged centrally above the pull rod 21 and thus centrally on or in the housing element 12. This sensor 15 is designed to detect the displacement of a rigid measuring rod 16 and thus the current deflection of the hydraulic cylinder unit 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)

Claims (10)

  1. Segment de guidage de barre (1) d'une installation de coulée continue, qui comprend une entretoise supérieure (2) et une entretoise inférieure (3) ; dans lequel, entre l'entretoise supérieure (2) et l'entretoise inférieure (3), sont disposées des unités (4) faisant office de cylindres hydrauliques destinées au réglage de la distance entre l'entretoise supérieure (2) et l'entretoise inférieure (3) ; dans lequel une partie de l'unité (4) faisant office de cylindre hydraulique est reliée à l'entretoise supérieure (2) par l'intermédiaire d'un premier point d'appui (5) et une partie de l'unité (4) faisant office de cylindre hydraulique est reliée à l'entretoise inférieure (3) par l'intermédiaire d'un deuxième point d'appui (6) ;
    caractérisé
    en ce qu'au moins un des points d'appui (5) comprend :
    - un palier (7) qui comprend au moins un anneau interne (8, 9) et au moins un anneau externe ; dans lequel une partie de l'unité (4) faisant office de cylindre hydraulique est reliée audit au moins un anneau interne (8, 9) ;
    - un élément (12) faisant office de logement, dans lequel est disposé ledit au moins un anneau externe (10, 11) ; dans lequel une bride (13) élargie en direction radiale est disposée contre l'élément (12) faisant office de logement ;
    dans lequel l'élément (12) faisant office de logement est fixé au moyen de la bride (13) contre l'entretoise supérieure (2) ou contre l'entretoise inférieure (3).
  2. Segment de guidage de barre selon la revendication 1, caractérisé en ce que l'élément (12) faisant office de logement est fixé au moyen de la bride (13) contre l'entretoise supérieure (2).
  3. Segment de guidage de barre selon la revendication 1 ou 2, caractérisé en ce que le palier (7) présente deux anneaux internes (8, 9) et deux anneaux externes (10, 11) ; dans lequel un tronçon (14) élargi en direction radiale de la partie de l'unité (4) faisant office de cylindre hydraulique est disposé entre les deux anneaux internes (8, 9).
  4. Segment de guidage de barre selon la revendication 3, caractérisé en ce que les deux anneaux externes (10, 11) sont disposés à l'écart l'un de l'autre en direction axiale dans l'élément (12) faisant office de logement et, de préférence, sont fixés en direction axiale par des tronçons de l'élément (12) faisant office de logement faisant saillie vers l'intérieur en direction radiale.
  5. Segment de guidage de barre selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le palier (7) est réalisé sous la forme d'un palier du type à glissement axial.
  6. Segment de guidage de barre selon la revendication 5, caractérisé en ce qu'une surface d'appui convexe de l'anneau interne (8, 9) vient se disposer contre une surface d'appui concave de l'anneau externe (10, 11).
  7. Segment de guidage de barre selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'élément (12) faisant office de logement est réalisé sous la forme d'une unité encapsulée avec les anneaux de palier (8, 9, 10, 11) qui se trouvent dans l'élément en question.
  8. Segment de guidage de barre selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'un capteur (15) destiné à l'enregistrement du déplacement entre le piston et le cylindre de l'unité (4) faisant office de cylindre hydraulique est disposé contre l'élément (12) faisant office de logement ou dans l'élément en question.
  9. Segment de guidage de barre selon la revendication 8, caractérisé en ce que le capteur (15) est disposé dans la zone de l'axe longitudinal de l'unité (4) faisant office de cylindre hydraulique contre l'élément (12) faisant office de logement ou dans l'élément en question.
  10. Segment de guidage de barre selon la revendication 9, caractérisé en ce que le capteur (15) est réalisé à des fins d'enregistrement de mouvement d'une barre de mesure rigide (16) qui est reliée au piston de l'unité (4) faisant office de cylindre hydraulique.
EP19185916.4A 2018-08-24 2019-07-12 Élément de guidage de barre d'une installation de coulée continue Active EP3613519B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018214340.4A DE102018214340A1 (de) 2018-08-24 2018-08-24 Strangführungselement einer Stranggießanlage

Publications (2)

Publication Number Publication Date
EP3613519A1 EP3613519A1 (fr) 2020-02-26
EP3613519B1 true EP3613519B1 (fr) 2020-11-11

Family

ID=67262111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19185916.4A Active EP3613519B1 (fr) 2018-08-24 2019-07-12 Élément de guidage de barre d'une installation de coulée continue

Country Status (2)

Country Link
EP (1) EP3613519B1 (fr)
DE (1) DE102018214340A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1963146C3 (de) 1969-12-17 1974-02-28 Demag Ag, 4100 Duisburg Segmentrahmen für die Stütz- bzw. Transportwalzen einer Metall-, insbesondere Stahlstranggießanlage
DE4306853C2 (de) * 1993-02-26 1996-03-21 Mannesmann Ag Strangführungsgerüst
DE102004054296B4 (de) 2004-11-09 2021-11-11 Sms Group Gmbh Steuer- und / oder Regeleinrichtung für ein Stützrollengerüst einer Stranggießvorrichtung für Metalle, insbesondere für Stahlwerkstoffe
DE102014202995A1 (de) * 2013-09-16 2015-03-19 Sms Siemag Ag Rahmen für ein Strangführungssegment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3613519A1 (fr) 2020-02-26
DE102018214340A1 (de) 2020-02-27

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