EP3825018B1 - Cage de laminage de refoulement - Google Patents

Cage de laminage de refoulement Download PDF

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Publication number
EP3825018B1
EP3825018B1 EP20206572.8A EP20206572A EP3825018B1 EP 3825018 B1 EP3825018 B1 EP 3825018B1 EP 20206572 A EP20206572 A EP 20206572A EP 3825018 B1 EP3825018 B1 EP 3825018B1
Authority
EP
European Patent Office
Prior art keywords
roller
roll stand
centre
edging
transmission
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
EP20206572.8A
Other languages
German (de)
English (en)
Other versions
EP3825018A1 (fr
Inventor
Achim Klein
Hans-Jürgen Bender
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 EP3825018A1 publication Critical patent/EP3825018A1/fr
Application granted granted Critical
Publication of EP3825018B1 publication Critical patent/EP3825018B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers

Definitions

  • the invention relates to an edging roll stand, as is used in particular in a steel works or rolling mill for reducing the width of metal products.
  • Edger stands are known in principle in the prior art. They typically have an infeed stand roller and an outfeed stand roller with a roller table arranged in between and possibly also with intermediate transfer tables for passing the metal product through the edger.
  • the entry stand roll and the exit stand roll are typically driven in rotation and as such are also used to transport the metal product through the edging mill.
  • the British patent application discloses GB 2 516 043 A a rotary drive for the center rollers of the roller table.
  • the drive essentially consists of a chain, with the help of which the torque of the driven infeed stand roller and the rotationally driven outlet stand roller is picked up and transmitted to the middle rollers.
  • the British patent application teaches designing the middle rollers so that they can be pivoted upwards out of the middle of the edging roll stand.
  • the preamble of claim 1 is based on GB 2 516 043 A .
  • the invention is based on the object of providing an alternative drive concept for the at least one center roll in an edging roll stand.
  • This drive concept offers the advantage that it is designed to save space, particularly in terms of width. Because the drive with the gearing is mounted below the center rolls, there is advantageously no need for drives or spindles that protrude laterally beyond the width of the edging roll stand. Due to the intended separate drive for the center rollers, the drives of the infeed stand roller and the outfeed stand roller are not excessively loaded; nor do they need to be oversized.
  • the claimed property of the roller unit that this is only built as wide as the minimum distance at which the edging rollers can be moved together, offers the advantage that the actual operation of the edging roller stand, namely reducing the thickness of the metal product in the width direction, does not go through the intended Drive for the middle rollers is restricted.
  • the metal product travels through the edging mill in one direction of travel.
  • the at least one center roller is rotated alternately clockwise and counterclockwise, which is why the transport direction then changes in each case.
  • the outfeed stand roll then becomes the infeed stand roll and vice versa. Both cases or transport directions are covered by the present invention.
  • the roller unit in which the drive and the gearing for driving the center rollers and, if necessary, also a clutch are housed in addition to the rollers, is arranged symmetrically or centrally in relation to the center plane of the edging roll stand such that it Overall width G protrudes equally on both sides of the center plane.
  • the gearing is in engagement with the center roll on one side of the center roll, axially offset relative to its barrel. This would then normally result in the center roll no longer being symmetrical, i. H. would no longer be arranged projecting equally on both sides of the center plane in the edging roll stand.
  • the present invention provides that the barrel diameter of the at least one center roller on the side opposite the gear is reduced or offset over such an axial length that the part of the barrel of the at least one center roller that is not offset when the roller unit is installed in the edging roll stand protrudes equally far on both sides of the center plane of the edging roll stand.
  • a hydraulic or torque motor is preferably used as the drive; both motor types offer the advantage that they can develop a particularly high torque with little space requirement.
  • figure 1 shows the edging roll stand 100 according to the invention seen in the direction of transport.
  • the plane of transport can be seen perpendicular to the plane of the drawing.
  • a roller unit 160 can be seen in the center with central rollers 130 for transporting a metal product to be upset in one transport direction, ie into the plane of the drawing.
  • two compression rollers 120 are arranged on the right and left of the roller unit 160, which can be moved together at a minimum distance d transversely to the transport direction.
  • the central rollers 130 arranged between the edging rollers 120 are used to support and convey the product (not shown in the figures) during its transport through the edging roller stand 100.
  • the roller unit 160 installed between the edging rollers 120 is at most as wide as the minimum distance d on which the edging rollers 120 can be moved together.
  • a separate drive 140 with a gear 150 is provided in the roller unit 160 below the center rollers 130 for driving the center rollers in rotation.
  • a clutch 170 is preferably also provided for detachably connecting the drive 140 to the gear 150.
  • the merit of the invention is that all of the components mentioned can be accommodated in the roller unit 160, which has only very narrow dimensions.
  • the drive is designed, for example, as a hydraulic or torque motor.
  • the gearbox is preferably a spur gear with spur gears 152.
  • the design of the gear 150 as a spur gear offers the advantage that it can be designed to save space, particularly in the width direction, as in figure 1 shown.
  • the spur gears 152 which transmit the torque of the driver 140 to the center rollers 130, are narrow in the width direction and are simply intermeshingly arranged one above the other to bridge the vertical distance between the center rollers 130 and the driver 140 arranged below.
  • the (total) number of spur gears 152, 154 is chosen so that the direction of rotation of the at least one driven center roller corresponds to the direction of rotation of an inlet stand roller 110 and an outlet stand roller 190; please refer figure 2 .
  • a spur gear 154 is preferably provided as the output gear of the transmission for rotating a central roller, but preferably simultaneously two adjacent central rollers with/in the same direction of rotation.
  • the center roll or rolls 130 are fundamentally rotatably mounted in the roll unit 160 axially offset relative to the center plane x.
  • the present invention provides that the at least one center roll on the side opposite or facing away from the gear mechanism 140 over such an axial length Lx in their barrel diameter is reduced/stripped such that the non-stripped part By of the barrel of the at least one center roll 130 protrudes equally on both sides of the center plane x when the roll unit 160 is installed in the edging roll stand 100.
  • the metal product guided through the edging roll stand 100 then lies on either side of the Center plane to the same extent on the at least one center roller 130 and to this extent the conveying force with which the metal product is conveyed through the edging roll stand with the aid of the center rollers is the same in terms of amount on both sides of the center plane.
  • no unequal torque or unequal conveying force acts on the metal product to be conveyed. This has the advantage that the metal product does not shear sideways as it is transported through the edging roll stand.
  • figure 2 shows the edging roll stand 100 according to the invention in a cross section or in a side view.
  • the stand roller 110 on the inlet side and a stand roller 190 on the outlet side can be seen, both of which are typically driven in rotation. They serve to convey the metal product in the direction of transport, i.e. in figure 2 in the direction of the arrow, through the edging roll stand 100.
  • Said roller unit 160 is arranged between these two stand rollers 110, 190, it also being possible for transfer tables 168 to be arranged between the roller unit and the stand rollers.
  • FIG 2 Can be seen in figure 2 that preferably two central rollers 130 are provided, which are rotatably driven via vertically arranged and meshing spur gears 152 of the gear 150.
  • the lower spur gear corresponds to the output gear of the drive 140.
  • the number of spur gears is preferably chosen so that the middle rollers 130 are driven in rotation in the transport direction.
  • the top spur gear is located between the two middle rollers and drives them at the same time. This central arrangement of the spur gear ensures that the two adjacent central rollers are driven in rotation in the same direction of rotation.
  • the roller assembly 160 is preferably encased in a housing 170 to protect all components within roller unit from dirt and cooling water.
  • the housing can have a cooling device, from which in figure 1 an inlet 186 and outlet 184 for the cooling water can be seen.
  • a protective shield 165 can be seen for draining off external cooling water, with which the metal product to be upset is cooled, in particular from the drive 140.
  • the protective shield 165 serves to keep radiant heat emanating from the metal product to be upset from the drive 140.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Claims (11)

  1. Cage du type à cylindres verticaux (100) qui présente :
    un rouleau de cage de laminoir d'entrée (110) et un rouleau de cage de laminoir de sortie (190) qui sont destinés au transport d'un produit métallique dans une direction de transport à travers la cage du type à cylindres verticaux (100) ;
    deux cylindres verticaux (120) qui sont disposés entre le rouleau de cage de laminoir d'entrée (110) et le rouleau de cage de laminoir de sortie (190) à des fins d'écrasement du produit métallique dans la direction transversale par rapport à la direction de transport ; dans laquelle les cylindres verticaux peuvent être déplacés de manière conjointe sur une distance minimale (d) dans la direction transversale par rapport à la direction de transport ;
    au moins un rouleau médian (130) qui est disposé entre les rouleaux de la cage de laminoir (110, 190) destiné au support et au transport ultérieur du produit métallique lors du transport de ce dernier à travers la cage du type à cylindres verticaux ; et
    un mécanisme de commande (140) et de préférence un engrenage (150) qui couple le mécanisme de commande au rouleau médian (130) à des fins d'entraînement en rotation dudit au moins un rouleau médian ;
    dans lequel ledit au moins un rouleau médian (130) est incorporé dans un agrégat de rouleaux (160) entre les cylindres verticaux (120) dans la cage du type à cylindres verticaux (100) ; dans lequel la structure de l'agrégat de rouleaux (160) avec l'engrenage (150) est conçue avec une largeur maximale qui correspond à la distance minimale (d) sur laquelle les cylindres verticaux (120) peuvent être déplacés de manière conjointe ;
    caractérisée en ce que le mécanisme de commande (140) est réalisé sous la forme d'une mécanisme de commande séparé pour le rouleau médian (130) et est incorporé de manière conjointe avec l'engrenage (150) en dessous du rouleau médian, dans l'agrégat de rouleaux (160).
  2. Cage du type à cylindres verticaux (100) selon la revendication 1, caractérisée en ce que le mécanisme de commande (140) est disposé en parallélisme axial par rapport audit au moins un rouleau médian (130) ; et en ce que l'engrenage (150) est réalisé sous la forme d'un engrenage du type à denture droite qui comprend des roues cylindriques à denture droite (152).
  3. Cage du type à cylindres verticaux (100) selon la revendication 2, caractérisée en ce qu'une des roues cylindriques à denture droite (154) est réalisée sous la forme d'un pignon entraîné de l'engrenage, destiné au mécanisme de commande d'au moins un des rouleaux médians ;
    en ce que le nombre total des roues cylindriques à denture droite (152) de l'engrenage est sélectionné d'une manière telle que la direction de rotation dudit au moins un rouleau médian entraîné (130) correspond à la direction de rotation du rouleau de cage de laminoir d'entrée (110) et du rouleau de cage de laminoir de sortie (190) au cours du transport du produit métallique dans la direction de transport à travers la cage du type à cylindres verticaux.
  4. Cage du type à cylindres verticaux (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'agrégat de rouleaux (160) est incorporé avec l'engrenage (150), par rapport au plan médian (x) de la cage du type à cylindres verticaux (100), d'une manière symétrique telle ou dans une position médiane dans la cage du type à cylindres verticaux d'une manière telle qu'en ce qui concerne sa largeur totale (G), il dépasse sur la même longueur les deux côtés du plan médian (x).
  5. Cage du type à cylindres verticaux (100) selon la revendication 4, caractérisée en ce que l'engrenage (150) d'un côté du rouleau médian (130) vient s'engrener avec le rouleau médian (130) en étant décalé dans la direction axiale, par rapport à sa largeur de table ; et en ce que ledit au moins un rouleau médian (130), du côté opposé à l'engrenage, est réduit/diminué sur une longueur axiale Lx, quant à son diamètre de table, telle que la partie non affaissée (By) de la largeur de table dudit au moins un rouleau médian (130), au cours de l'incorporation de l'agrégat de rouleaux (160) dans la cage du type à cylindres verticaux (100), dépasse sur la même longueur les deux côtés du plan médian (x) de la cage du type à cylindres verticaux (100).
  6. Cage du type à cylindres verticaux (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que deux rouleaux médians (130) sont incorporés dans une position de parallélisme axial dans l'agrégat de rouleaux (160) ; et en ce que les deux rouleaux médians (130) sont entraînés en rotation, dans la même direction de rotation autour de l'engrenage, en particulier autour de la même roue cylindrique à denture droite (152) de l'engrenage (150).
  7. Cage du type à cylindres verticaux (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que le rouleau de cage de laminoir d'entrée (110) et/ou le rouleau de cage de laminoir de sortie (190) est /sont entraîné(s) en rotation.
  8. Cage du type à cylindres verticaux (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'on prévoit un couplage (170) destiné à la liaison amovible du mécanisme de commande (140) pour le rouleau médian (130) avec l'engrenage (150).
  9. Cage du type à cylindres verticaux (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'engrenage (150) et de préférence également le couplage (170) sont logés dans un logement (175) ; et en ce que l'on prévoit un mécanisme de refroidissement (180), par exemple sous la forme d'un circuit de refroidissement, qui est destiné au refroidissement du logement.
  10. Cage du type à cylindres verticaux (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que le mécanisme de commande (140) est réalisé sous la forme d'un moteur hydraulique ou d'un moteur couple.
  11. Cage du type à cylindres verticaux (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que, en dessous du rouleau médian (130), mais au-dessus du mécanisme de commande (140), on prévoit, dans l'agrégat de rouleaux (160) un écran de protection (165) pour la dérivation de l'eau de refroidissement destinée au produit métallique et pour l'arrêt de la chaleur rayonnante qui émane du mécanisme de commande.
EP20206572.8A 2019-11-11 2020-11-10 Cage de laminage de refoulement Active EP3825018B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019217353.5A DE102019217353A1 (de) 2019-11-11 2019-11-11 Stauchwalzgerüst

Publications (2)

Publication Number Publication Date
EP3825018A1 EP3825018A1 (fr) 2021-05-26
EP3825018B1 true EP3825018B1 (fr) 2022-03-30

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ID=73343806

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EP20206572.8A Active EP3825018B1 (fr) 2019-11-11 2020-11-10 Cage de laminage de refoulement

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EP (1) EP3825018B1 (fr)
DE (1) DE102019217353A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3984662B1 (fr) 2020-10-19 2023-03-08 SMS Group GmbH Table de transfert à rouleaux et cadre de cylindre d'écrasement
DE102021211742A1 (de) 2020-10-19 2022-04-21 Sms Group Gmbh Überleitrollentisch und Stauchwalzgerüst

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787176A (en) * 1953-03-02 1957-04-02 Kaiser Aluminium Chem Corp Edge roll device
GB2516043A (en) 2013-07-09 2015-01-14 Siemens Vai Metals Tech Gmbh A rolling mill edger

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DE102019217353A1 (de) 2021-05-12
EP3825018A1 (fr) 2021-05-26

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