EP2734318B1 - Cylindre pour laminoir à couronnes - Google Patents

Cylindre pour laminoir à couronnes Download PDF

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Publication number
EP2734318B1
EP2734318B1 EP12735873.7A EP12735873A EP2734318B1 EP 2734318 B1 EP2734318 B1 EP 2734318B1 EP 12735873 A EP12735873 A EP 12735873A EP 2734318 B1 EP2734318 B1 EP 2734318B1
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EP
European Patent Office
Prior art keywords
roll
cap
roller
accordance
base body
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
EP12735873.7A
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German (de)
English (en)
Other versions
EP2734318A1 (fr
Inventor
Lothar Sebastian
Klaus Schürmann
Klaus Wollny
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.)
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Original Assignee
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
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Publication date
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length

Definitions

  • the invention relates to a roller for a ring rolling mill.
  • An axial roller according to the preamble of claim 1 is for example from the DE 38 40 020 A1 known.
  • a ring rolling mill is a rolling mill, with which ring blanks are rolled by radial expansion into rings of the desired cross-section.
  • the ring blanks are obtained z. B. by upsetting, punching and / or forging.
  • Such a ring rolling mill generally has at least one driven main roller or plate roller acting on the ring outer side and a mandrel roller or a roller mandrel acting on the ring inner side.
  • On the ring end faces usually act two axial rolls z. B. be referred to as upper axial roller and lower axial roller.
  • These axial rollers are generally conical in shape, they are also referred to as tapered rollers. Structure and operation of such ring rolling mills have long been known. This also applies to the usual drives.
  • Ring rolling mills of the type described above are z. B. from the DE 1 188 544 or the DE 1 019 635 known.
  • the invention has for its object to provide a roller for a ring mill, which can be economically and variably produced and used. In particular, an economical processing in the high temperature range should be possible.
  • the invention teaches in a generic roller for a ring rolling mill, that the rollers have a roller body and a patch on the roller body roller cap.
  • This roller cap is detachably and interchangeably mounted on the roller body, z. B. plugged or postponed.
  • the invention relates to an axial roller and consequently tapered roller of such a ring rolling mill.
  • the roller cap has a conical outer surface, which forms the working surface.
  • the roller cap has an inner surface which rests against the outer surface of the roller body.
  • this inner surface is preferably formed conical, so that the roller cap is formed in a particularly preferred embodiment, a hollow cone-shaped or cone-shaped with predetermined wall thickness.
  • the invention is based on the recognition that a separately exchangeable component is made available by realization of the roller cap, which can be optimally adapted to the given requirements.
  • a separately exchangeable component is made available by realization of the roller cap, which can be optimally adapted to the given requirements.
  • higher-alloyed hot-work steels and in particular nickel-based alloys are significantly more expensive than "simple" work steels or hot-work steels, the rolls can be produced significantly more cheaply overall.
  • conventional rollers for. B. tapered rollers total weight of several tons, z. B. more than 10 tons.
  • the inventively proposed roller cap has a significantly lower weight, so that it can also be produced significantly cheaper. This is particularly interesting because it is a wear part in the roller. According to the invention, it is no longer necessary to replace the entire roll (including the shaft, which is usually integrally formed thereon), but instead only replace the roll cap. This is advantageous not only in the use of higher alloyed hot work steels and nickel base alloys, but also in other materials.
  • the invention is therefore not limited to ring rolling mills for high temperature applications, but also includes ring rolling mills for rolling mild steel. Even though this does not pose the problem of the high temperatures of the roll surfaces, the design with roll cap simplifies the exchange since only the cap has to be exchanged, which has a significantly lower weight than the entire roll arrangement including the shaft.
  • the inventive design with separately replaceable roller cap also has the advantage that the heat transfer is reduced by the separation point or separation surface between the roller cap and roller body, so that it can be prevented that high temperatures migrate into the bearings of the roller assembly.
  • the invention proposes, in a preferred embodiment, that the basic roller body is formed integrally with the shaft, wherein the roller body is then formed by a conical shaft end becomes. On this one-piece arrangement of shaft and roller body then the roller cap can be placed as a replacement part.
  • the roller cap is clamped with at least one tie rod against the roller body, z. B. hydraulically braced, preferably with at least one hydraulic nut.
  • This high clamping forces can be realized, which are required due to the high forces and the high masses of the tools.
  • the roller cap can be designed in the shape of a hollow cone or conical ring and can have a conical inner surface which rests against a conical outer surface of the roller base body or the shaft.
  • the roller cap has an inner cylindrical threaded portion, preferably followed by the conical inner surface of the roller cap.
  • this cylindrical Threaded section can screw a cylindrical tie rod, which then passes through the roller body and the shaft and the transmission side is braced.
  • the roller cap on the one hand and the roller base body on the other hand are made of the same material.
  • the invention makes it possible in a particularly advantageous embodiment that the roller cap is made of a different material than the roller body and the shaft. This is particularly useful for high temperature applications, because the roller cap then - as already explained - from temperature-resistant alloys, eg. As a high-alloy hot-work steel or a nickel-based alloy can be produced. The costs can thus be significantly reduced overall.
  • the cap may be formed of a material with high thermal conductivity, in which case a heating to prevent heat loss is possible.
  • the cap may be formed of a low thermal conductivity material or a heat insulating material to prevent heat loss.
  • the invention also relates to a ring rolling mill with at least one roll of the type described.
  • the invention relates in particular to a ring rolling mill with at least main roll, mandrel roll and upper axial roll and lower axial roll, preferably at least the upper axial roll and / or the lower axial roll in the manner according to the invention are configured with roller cap.
  • a ring rolling mill is shown simplified in its basic structure.
  • the ring rolling mill is used to produce seamless rings that are rolled out of a ring blank.
  • the ring blank is in Fig. 1 only partially indicated.
  • the ring rolling mill has in its basic structure a main roll 1, a mandrel roll 2, an upper tapered roll 3 and a lower tapered roll 4.
  • the tapered rollers 3, 4 work on the ring end faces. Between these tapered rollers an axial rolling gap is formed.
  • the tapered rollers 3, 4 are therefore also referred to as axial rollers 3, 4.
  • the main roll 1 and the mandrel roll 2 thus form a pair of rolls, while the axial roll 3 and the axial roll 4 form a further pair of rolls, wherein at least one roll of these pairs of rolls is driven.
  • the drives are merely indicated in the figures, they can be configured in a conventional manner.
  • a drive 16 is shown, which operates via a gear 17 on the roller.
  • At least one of the axial rolls 3, 4 has a roll main body 5 and a roll cap 6 which is placed on the roll main body 5.
  • this is illustrated by the example of the lower axial roller 4.
  • the upper axial roller 3 can be designed identically and consequently also be equipped with roller cap 6 (and possibly also with drive).
  • the roller cap 6 is detachably and interchangeably placed on the roller body 5, namely pushed or plugged.
  • the roller cap 6 is clamped with a clamping means 10 against the base body 5, namely with a pull rod 10, which is clamped hydraulically in the embodiment with a hydraulic nut 15 against the roller body.
  • the roller base body 5 is formed integrally with the shaft 7 of the roller and that on this one-piece unit of roller base body 5 and shaft 7, the separately prepared roller cap 6 is placed.
  • the roller cap 6 has not only a conical outer surface 8 as a working surface, but also a conical inner surface 9, d. h.,
  • the roller cap 6 is formed as a conical-ring-shaped cap with a predetermined wall thickness.
  • the roller base body 5 has a conical outer surface 12, d. h.,
  • the roller base body 5 is formed by the conical end of the shaft 7, so that the roller cap 6 is put in other words on the conical end 5 of the shaft 7.
  • the invention thus provides a separately replaceable wearing part as a roller cap 6 available.
  • Roller body 5 and shaft 7 are provided with a central opening 13 through which the pull rod 10 is passed.
  • the roller cap 6 has on the inside a cylindrical threaded portion 11.
  • the tie rod 10 which is provided at the end with an external thread, screwed.
  • a hydraulic nut 15 is indicated, with which the roller cap is clamped by means of the tie rod 10 against the roller body 5.
  • the inventive design with separately replaceable roller cap 6 makes it possible in particular to manufacture the roller cap 6 made of a different material than the roller body 5 and the shaft 7. This is particularly advantageous because the overall arrangement of the roller 3, 4 a high weight of z , B. has more than 10 tons. In the course of the usual wear, it is then not necessary to replace the entire roller 3, 4, but it must be done only the replacement of the roller cap 6. The handling is simplified, so that the exchange can be realized easier and faster. The operating costs can be reduced overall, since the wear part, namely the cap, can be produced much cheaper. This in turn makes it possible to produce a roller cap in high quality, since the additional cost of high quality material must be applied only to the roller cap and not for the entire roller assembly. This in turn makes it possible to use a total of a roll with a roll cap with excellent material properties, so that in particular a hot working at high temperatures can be realized economically.
  • the roller cap has z. B. a wall thickness of more than 50 mm, preferably more than 100 mm.
  • the end-side opening of the cap, in which the conical end of the shaft or the roller base body is immersed, has a diameter of more than 200 mm, preferably more than 400 mm.
  • the pull rod may have a diameter of more than 100 mm, preferably more than 150 mm. It becomes clear that the rollers or roller caps are bulky, heavy components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Claims (12)

  1. Cylindre réalisé sous forme d'un cylindre axial pour laminoir annulaire, le cylindre (3, 4) présentant un corps de base de cylindre (5) et une calotte de cylindre (6) posée sur le corps de base de cylindre (5), caractérisé en ce que la calotte de cylindre (6) est serrée par au moins une barre de traction (10) contre le corps de base de cylindre (5).
  2. Cylindre selon la revendication 1, caractérisé en ce que la calotte de cylindre (6) est posée de manière dissociable et échangeable sur le corps de base de cylindre (5).
  3. Cylindre selon la revendication 1 ou 2, caractérisé en ce que la calotte de cylindre (6) est serrée par la barre de traction (10) à l'aide de moyens hydrauliques contre le corps de base de cylindre (5), de préférence au moyen d'un écrou hydraulique.
  4. Cylindre selon une des revendications 1 à 3, caractérisé en ce que le corps de base de cylindre du cylindre axial de forme conique présente une surface extérieure de forme conique (12) et que la calotte de cylindre (6) présente une surface extérieure de forme conique (8) et une surface intérieure de forme conique (9) et est réalisée par conséquent sous forme d'une calotte de forme annulaire conique ou d'une calotte de forme conique creuse à épaisseur de paroi prédéfinie.
  5. Cylindre selon une des revendications 1 à 4, caractérisé en ce que la calotte de cylindre (6) présente une section filetée cylindrique (11) à laquelle se raccorde de préférence la surface intérieure de forme conique (9).
  6. Cylindre selon une des revendications 1 à 5, caractérisé en ce que le corps de base de cylindre (5) forme une seule pièce avec l'arbre (7) pour le dispositif de cylindre, le corps de base de cylindre (5) étant formé par une extrémité d'arbre de forme conique de l'arbre (7).
  7. Cylindre selon une des revendications 1 à 6, caractérisé en ce que la calotte de cylindre (6) est fabriquée dans un matériau autre que celui du corps de base de cylindre (5) et/ou de l'arbre (7).
  8. Cylindre selon une des revendications 1 à 7, caractérisé en ce que la calotte de cylindre (6) est fabriquée en acier travaillé à chaud fortement allié ou en alliage à base de nickel.
  9. Cylindre selon une des revendications 1 à 8, caractérisé en ce que le cylindre en tant que cylindre entraîné est pourvu d'une propulsion ou raccordé à une propulsion (16).
  10. Laminoir annulaire comportant au moins un cylindre selon une des revendications 1 à 9.
  11. Laminoir annulaire selon la revendication 10, comportant un cylindre principal (1), un cylindre à mandrin (2), un cylindre axial supérieur (3) et un cylindre axial inférieur (4), caractérisé en ce que qu'un cylindre axial ou les deux (3, 4) sont équipés d'une calotte de cylindre (6) posée sur un corps de base de cylindre (5).
  12. Laminoir annulaire selon la revendication 11, caractérisé en ce que le cylindre axial (3, 4) équipé de la calotte de cylindre (6) est équipé d'une propulsion (16).
EP12735873.7A 2011-07-21 2012-07-13 Cylindre pour laminoir à couronnes Active EP2734318B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110108113 DE102011108113A1 (de) 2011-07-21 2011-07-21 Walze für ein Ringwalzwerk
PCT/EP2012/063845 WO2013010961A1 (fr) 2011-07-21 2012-07-13 Cylindre pour laminoir à couronnes

Publications (2)

Publication Number Publication Date
EP2734318A1 EP2734318A1 (fr) 2014-05-28
EP2734318B1 true EP2734318B1 (fr) 2017-01-04

Family

ID=46516750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12735873.7A Active EP2734318B1 (fr) 2011-07-21 2012-07-13 Cylindre pour laminoir à couronnes

Country Status (3)

Country Link
EP (1) EP2734318B1 (fr)
DE (1) DE102011108113A1 (fr)
WO (1) WO2013010961A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014005085A1 (de) 2014-04-08 2015-10-08 Sms Meer Gmbh Mehrwalzentischringwalzwerk sowie Verfahren zum Walzen von Ringen in einem Mehrwalzentischringwalzwerk
PL239801B1 (pl) 2020-03-25 2022-01-10 Zarmen Fpa Spolka Z Ograniczona Odpowiedzialnoscia Sposób kształtowania pierścieni bezszwowych w procesie walcowania i zespół do kształtowania pierścieni bezszwowych w procesie walcowania

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1781140A (en) 1923-12-10 1930-11-11 Taylor James Hall Universal ring-rolling machine
DE2009867A1 (de) 1970-03-03 1971-09-30 Siemag Gmbh Walzkopf mit gegen die Walzgutachse geneigt fliegend galagerten Walzen
US3824820A (en) 1972-05-09 1974-07-23 Rheinstahl Ag Ring rolling mill
JPS5421635A (en) 1977-07-19 1979-02-19 Mitsubishi Electric Corp Induction heated cooking appliance
DE3229201A1 (de) 1982-08-05 1984-02-09 SMS Schloemann-Siemag AG, 4000 Düsseldorf Kegelwalze eines planeten-schraegwalzwerks
EP0100957A1 (fr) 1982-08-05 1984-02-22 Sms Schloemann-Siemag Aktiengesellschaft Tête de cylindre d'un laminoir planétaire à cylindres obliques
DE3043937C2 (fr) 1980-11-21 1988-08-25 Sms Schloemann-Siemag Ag, 4000 Duesseldorf, De
DE3840020A1 (de) 1988-11-26 1990-05-31 Thyssen Industrie Radial-gesenkwalzmaschine
DE3902784A1 (de) 1989-01-31 1990-08-02 Esw Roehrenwerke Gmbh Arbeitswalze fuer ein planetenschraegwalzwerk
DE202010014708U1 (de) 2010-10-25 2011-01-20 C. Groene Consulting, Unip Lda Axial-/Radialringwalzwerk

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE54323C (de) J. munton in Maywood, County of Cook, Staat Illinois, V. St. A Radreifenwalzwerk
DE1019635B (de) 1956-08-08 1957-11-21 Wagner & Co Werkzeugmaschinenf Ringwalzwerk
DE1188544B (de) 1961-12-22 1965-03-11 Wagner & Co Werkzeugmaschinenf Vierwalzen-Ringwalzwerk mit selbsttaetig nachstellbaren Axialwalzen
JPS5641862Y2 (fr) * 1977-07-13 1981-09-30

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1781140A (en) 1923-12-10 1930-11-11 Taylor James Hall Universal ring-rolling machine
DE2009867A1 (de) 1970-03-03 1971-09-30 Siemag Gmbh Walzkopf mit gegen die Walzgutachse geneigt fliegend galagerten Walzen
US3824820A (en) 1972-05-09 1974-07-23 Rheinstahl Ag Ring rolling mill
JPS5421635A (en) 1977-07-19 1979-02-19 Mitsubishi Electric Corp Induction heated cooking appliance
DE3043937C2 (fr) 1980-11-21 1988-08-25 Sms Schloemann-Siemag Ag, 4000 Duesseldorf, De
DE3229201A1 (de) 1982-08-05 1984-02-09 SMS Schloemann-Siemag AG, 4000 Düsseldorf Kegelwalze eines planeten-schraegwalzwerks
EP0100957A1 (fr) 1982-08-05 1984-02-22 Sms Schloemann-Siemag Aktiengesellschaft Tête de cylindre d'un laminoir planétaire à cylindres obliques
DE3840020A1 (de) 1988-11-26 1990-05-31 Thyssen Industrie Radial-gesenkwalzmaschine
DE3902784A1 (de) 1989-01-31 1990-08-02 Esw Roehrenwerke Gmbh Arbeitswalze fuer ein planetenschraegwalzwerk
DE202010014708U1 (de) 2010-10-25 2011-01-20 C. Groene Consulting, Unip Lda Axial-/Radialringwalzwerk

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Untersuchung des flexiblen axialen Profilierens von nahtlosen Ringen auf Radial-Axial-Ringwalzwerken in Stahl", 00072009, ISBN: 978-3-8322-8588-3, article DENNIS MICHL: "3.2 ubertragen des werkzeugkonzeptes auf das industriewalzwerk", pages: 28 - 29, XP055422344
U. KOPPERS ET AL.: "Neue Entwicklungen beim Walzen axial profilierter Ringe aus Stahl und NE-Metallen", AACHENER STAHLKOLLOQUIUM - UMFORMUNGSTECHNIK, 2007, XP055422357

Also Published As

Publication number Publication date
WO2013010961A1 (fr) 2013-01-24
DE102011108113A1 (de) 2013-01-24
EP2734318A1 (fr) 2014-05-28

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