EP3930934B1 - Cage de laminoir pour le laminage de matériaux métalliques - Google Patents

Cage de laminoir pour le laminage de matériaux métalliques Download PDF

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Publication number
EP3930934B1
EP3930934B1 EP20700906.9A EP20700906A EP3930934B1 EP 3930934 B1 EP3930934 B1 EP 3930934B1 EP 20700906 A EP20700906 A EP 20700906A EP 3930934 B1 EP3930934 B1 EP 3930934B1
Authority
EP
European Patent Office
Prior art keywords
piston
roll stand
roll
cross member
stand according
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
EP20700906.9A
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German (de)
English (en)
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EP3930934A1 (fr
Inventor
Michael Bohland
Dominic KLINKER
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
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SMS Group GmbH
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Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3930934A1 publication Critical patent/EP3930934A1/fr
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Publication of EP3930934B1 publication Critical patent/EP3930934B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/203—Balancing rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting

Definitions

  • the invention relates to a roll stand for rolling metallic goods, comprising two roll stands with a stand crossbeam, with a roll being rotatably mounted in the roll stand, with the roll being operatively connected to a balancing crossbeam and with at least one hydraulic piston-cylinder system arranged in the stand crossbeam is, with which a tensile force can be generated between the stand traverse and the balancing traverse.
  • a generic roll stand is, for example, from DE 21 65 313 A1 known.
  • the upper rollers in the roll stand must be pulled or balanced against the adjustment system by a balancing system. This allows the upper rolls to be moved or positioned in the roll stand. Also, games in employment are eliminated by balancing.
  • roll balances are used in roll stands.
  • the previously known concept is characterized by a hydraulic cylinder which is arranged centrally in the traverse of the stand and has a classic design.
  • the cylinder acts on the components to be balanced via a crossbeam and a balancing crossbeam.
  • Solutions are also known in which four cylinders are used, which act directly on the components through holes in the upper stator crossheads. Also known are solutions with two cylinders, which, however, have a classic structure. Differential cylinders or classic plunger cylinders are used here.
  • the CN 103286138A envisages two classic differential cylinders attached to the outside of the scaffolding on additional consoles, which are directly connected to a balancing beam.
  • the CN 103286139A relies on two classic differential cylinders fastened to the inside of the frame on the crossbeam.
  • the invention is based on the task of designing a roll stand of the generic type in such a way that leaks can be better avoided, particularly in the case of high stand ascents. Furthermore, a simple construction of the framework can be achieved that can be implemented cost-effectively. Finally, the arrangement should also be advantageous from a safety point of view.
  • the piston-cylinder system has a cylinder housing with an upper axial end and a lower axial end, with a piston being displaceably arranged in the cylinder housing and with the piston moving the cylinder housing in every operating state both surpasses at its upper axial end and at its lower axial end.
  • Two piston-cylinder systems are preferably arranged symmetrically to a center plane of the roll stands.
  • the piston has a first outside diameter in an upper section, wherein the piston has a second outside diameter in a lower section, which is smaller than the first outside diameter.
  • connection between the stand traverse and the balancing traverse is preferably established via a pull rod which is connected to the piston and the balancing traverse.
  • a preferred embodiment of the invention provides that the pull rod penetrates the piston axially and is fastened to the piston in an upper area of the piston.
  • the tie rod can be releasably connected to the piston, with a locking mechanism being provided for the releasable connection.
  • the locking mechanism is preferably arranged on the cylinder housing (that is to say above it).
  • the locking mechanism preferably comprises a pivoting drive which causes locking and unlocking by a pivoting movement.
  • the locking mechanism also preferably includes a cover that covers the locking mechanism so that it is inaccessible from the outside.
  • the mill stand is preferably a roughing mill stand or a plate mill stand in a hot rolling mill.
  • the proposed roll stand is therefore advantageously used as a roughing mill stand and as a heavy-plate stand in hot rolling mills for steel and nonferrous metals.
  • the proposed concept reduces the load on the cylinder, especially in the case of large scaffolding ascents, above all with regard to its seals and with regard to its guide elements. This leads to a longer service life of the components used.
  • the seals and guide elements used therefore have a longer service life, which results from improved stability. This is achieved by the piston, which as a continuous, rod-shaped element penetrates the cylinder housing on both sides.
  • the cylinders contain an integrated lock, which means that additional locking components are not required. Movable parts are not accessible due to the closed design, which makes additional locking measures to create the required security unnecessary.
  • an integrated or closed design of the cylinder, pull rod and locking mechanism is made possible. This design also enables effective fume extraction.
  • the figures show a rolling stand 1 which comprises at least one, typically two, rolling stand 2 .
  • a stand traverse 3 is arranged in the upper area of the roll stand 1 .
  • the roll 4 can be seen in the lower area of the figures (it should be noted here that the roll stand 1 shown in the figures continues downwards, which is not shown).
  • a balancing traverse 5 is arranged above the roller 4 but below the stand traverse 3 . This acts indirectly on the roller 4 and exerts balancing forces on it.
  • This technology which is sufficiently well-known per se, is described in detail in the above-mentioned documents, so that reference is expressly made to them.
  • the balancing forces are generated by two piston-cylinder systems 6 - how figure 1 shows - are arranged symmetrically to a center plane M of the roll stand 2, but spaced from this center plane.
  • each piston-cylinder system 6 has a cylinder housing 7 which has an upper axial end 8 and a lower axial end 9 .
  • the cylinder housing 7 is closed off by a cylinder cover 16 at the upper axial end 8 .
  • the cylinder housing 7 is penetrated by a piston 10 in such a way that the piston 10 is displaceably arranged in the cylinder housing 7, whereby this cylinder housing 7 is supported in every operating state both at its upper axial end 8 and at its lower axial end 9 surmounted, i. H. fully interspersed. This produces a high degree of stability, which is provided when the piston 10 moves relative to the cylinder housing 7 .
  • the piston 10 has an outer diameter D in its upper area, which is larger than the outer diameter d of the piston 10 in its lower area.
  • D in Formed inside the piston-cylinder system 6 is a hydraulic chamber which can be acted upon by hydraulic fluid.
  • the piston 10 is hollow and has a pull rod 11 passing through it.
  • the pull rod 11 is connected to the piston 10 above the piston 10 at its upper axial end in a lockable manner. At its lower axial end, the tie rod 11 is connected to the balancing traverse 5 .
  • the locking mechanism comprises a locking sleeve 12, a locking piece 13, a cover hood 14 and a pivoting drive 15.
  • a pivoting movement of the pivoting drive 15 allows the tie rod 11 to be locked or unlocked with the upper end of the piston 10.
  • a pivot bearing 17 is placed between the locking piece 13 and the piston 10 .
  • the cover hood 14 ensures that the moving parts are not accessible from the outside; accordingly, there is no risk of accidents.
  • connection of the tie rod 11 to the balancing traverse 5 is accomplished by a pivot bearing 18 , an end piece 20 , an anti-twist device 19 and a cover 21 .
  • An essential element of the proposed construction is therefore the (in particular hollow) piston rod 10 which completely passes through the cylinder housing and which is guided reliably even in the case of large rises, ie in the case of a large cylinder stroke.
  • the pull rod 11 is guided by the piston 10 and fastened to the balancing traverse 5 with its lower end.
  • the connections of the tie rod to the adjacent components are articulated (through axial pivot bearings 17 and 18). This reduces the loads on the cylinder caused by the rolling process; the cylinder can be replaced with little effort.
  • the balancing traverse and the tie rods can remain in the scaffolding.
  • the cylinders can be maintained and replaced with little effort, without having to dismantle the balancing beam and the tie rods. Furthermore, the compact design enables a flexible arrangement of components on the scaffold platform (e.g. drive components of the mechanical adjustment and valve stands).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Actuator (AREA)
  • Metal Rolling (AREA)

Claims (10)

  1. Cage de laminoir (1) destinée au laminage d'un produit métallique, qui comprend deux montants de cage de laminoir (2) équipés d'une traverse de montants (3) ; dans laquelle un cylindre (4) est monté en rotation dans les montants de cage de laminoir (2) ; dans laquelle le cylindre (4) est mis en liaison fonctionnelle avec une traverse de balancier (5) et dans laquelle au moins un système hydraulique du type à piston-cylindre (6) est disposé dans la traverse des montants (3), avec lequel on peut générer une force de traction entre la traverse des montants (3) et la traverse du balancier (5) ;
    caractérisée
    en ce que le système du type à piston-cylindre (6) présente un corps cylindrique (7) qui comprend une extrémité axiale supérieure (8) et une extrémité axiale inférieure (9) ; dans laquelle un piston (10) est disposé en coulissement dans le corps cylindrique (7) et dans laquelle le piston (10) fait saillie au-delà du corps cylindrique (7) dans chaque état de fonctionnement aussi bien à l'extrémité axiale supérieure (8) qu'à l'extrémité axiale inférieure (9) de ce dernier.
  2. Cage de laminoir selon la revendication 1, caractérisée en ce que deux systèmes du type à piston-cylindre (6) sont disposés en position symétrique par rapport à un plan médian (M) des montants de cage de laminoir (2).
  3. Cage de laminoir selon la revendication 1 ou 2, caractérisée en ce que le piston (10) présente un premier diamètre externe (D) dans un tronçon supérieur; dans laquelle le piston (10) présente un deuxième diamètre externe (d) dans un tronçon inférieur, qui est plus petit que le premier diamètre externe (D).
  4. Cage de laminoir selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la liaison entre la traverse des montants (3) et la traverse du balancier (5) est mise en oeuvre par l'intermédiaire d'une barre de traction (11) qui est reliée au piston (10) et à la traverse du balancier (5).
  5. Cage de laminoir selon la revendication 4, caractérisée en ce que la barre de traction (11) traverse le piston (10) en direction axiale et est fixée à ce dernier dans une zone supérieure du piston (10).
  6. Cage de laminoir selon la revendication 4 ou 5, caractérisée en ce que la barre de traction (11) est reliée au piston (10) de manière amovible ; dans laquelle on prévoit pour la liaison amovible un mécanisme de verrouillage (12, 13, 14, 15).
  7. Cage de laminoir selon la revendication 6, caractérisée en ce que le mécanisme de verrouillage (12, 13, 14, 15) est disposé sur le corps cylindrique (7).
  8. Cage de laminoir selon la revendication 6 ou 7, caractérisée en ce que le mécanisme de verrouillage (12, 13, 14, 15) comprend un mécanisme de pivotement (15) qui permet, par l'intermédiaire d'un mouvement de pivotement, d'obtenir un verrouillage ou un déverrouillage.
  9. Cage de laminoir selon l'une quelconque des revendications 6 à 8, caractérisée en ce que le mécanisme de verrouillage (12, 13, 14, 15) comprend un capot de recouvrement (14) qui recouvre le mécanisme de verrouillage (12, 13, 14, 15) d'une manière qui garantit une inaccessibilité depuis l'extérieur.
  10. Cage de laminoir selon l'une quelconque des revendications 1 à 9, caractérisée en ce qu'il s'agit d'une cage de laminoir qui est destinée à un train dégrossisseur ou d'une cage de laminoir qui est destinée à une tôle forte pour un laminoir à chaud.
EP20700906.9A 2019-02-28 2020-01-16 Cage de laminoir pour le laminage de matériaux métalliques Active EP3930934B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019202691.5A DE102019202691A1 (de) 2019-02-28 2019-02-28 Walzgerüst zum Walzen metallischen Guts
PCT/EP2020/050973 WO2020173614A1 (fr) 2019-02-28 2020-01-16 Cage de laminoir pour le laminage de matériaux métalliques

Publications (2)

Publication Number Publication Date
EP3930934A1 EP3930934A1 (fr) 2022-01-05
EP3930934B1 true EP3930934B1 (fr) 2022-06-29

Family

ID=69172813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20700906.9A Active EP3930934B1 (fr) 2019-02-28 2020-01-16 Cage de laminoir pour le laminage de matériaux métalliques

Country Status (6)

Country Link
US (1) US11779973B2 (fr)
EP (1) EP3930934B1 (fr)
JP (1) JP7227388B2 (fr)
CN (1) CN113498364B (fr)
DE (1) DE102019202691A1 (fr)
WO (1) WO2020173614A1 (fr)

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1727122A (en) * 1927-03-31 1929-09-03 Bethlehem Steel Corp Balancing device for rolls in rolling mills
FR94952E (fr) * 1961-12-01 1970-02-27 Spidem Ste Nle Laminoir précontraint a serrage inversé.
LU66380A1 (fr) * 1971-10-28 1973-01-23
DE2165313A1 (de) 1971-12-29 1973-07-12 Schloemann Ag Vorrichtung zur biegung von walzen gegen den walzdruck
JPS50156542U (fr) 1974-06-14 1975-12-25
JPS58147603U (ja) * 1982-03-30 1983-10-04 石川島播磨重工業株式会社 管圧延機の上クレ−ドル昇降装置
JPS5945009A (ja) * 1982-09-09 1984-03-13 Mitsubishi Heavy Ind Ltd ロ−ルクロス圧延機
JPS59118209A (ja) 1982-12-27 1984-07-07 Mitsubishi Heavy Ind Ltd ロ−ルクロス圧延機のトツプロ−ルバランス装置
JPS6029943U (ja) 1983-08-05 1985-02-28 カヤバ工業株式会社 オイルバツフア
JPH037043Y2 (fr) 1985-07-11 1991-02-21
DE3529720A1 (de) * 1985-08-20 1987-03-05 Mannesmann Ag Anordnung eines hydraulischen anstellzylinders
JPS6390508U (fr) * 1986-11-28 1988-06-11
US4976128A (en) * 1989-07-06 1990-12-11 Hitachi, Ltd. Rolling mill and method of exchanging rolls of rolling mill
DE4035276C1 (fr) * 1990-11-02 1992-05-07 Mannesmann Ag, 4000 Duesseldorf, De
JPH04339507A (ja) * 1991-05-13 1992-11-26 Hitachi Metals Ltd 圧延機の上ロール支持装置
US5421184A (en) 1992-07-20 1995-06-06 T. Sendzimir, Inc. Additional profile control for cluster mills
JP2677934B2 (ja) * 1992-08-31 1997-11-17 新日本製鐵株式会社 圧延機の圧下装置におけるロールバランス方法
US5842368A (en) * 1996-02-23 1998-12-01 Achenbach Buschhutten Gmbh Multiroll stand
JP2002039115A (ja) 2000-07-27 2002-02-06 Smc Corp 中空シリンダ
DE10254958A1 (de) 2002-11-26 2004-06-03 Sms Demag Ag Einrichtung zur Regelung des Walzspaltes beim Walzverfahren für Metalle, insbesondere für Stahlwerkstoffe, unter sich schnell ändernden Parametern
DE102006032813A1 (de) 2006-07-14 2008-01-24 Sms Demag Ag Vorrichtung zur Drehverriegelung der Stützwalzenbalancierung von Walzgerüsten
CN201049356Y (zh) * 2007-04-25 2008-04-23 天津市君晟机电传动工程有限公司 三辊限动芯棒连轧管机轧辊压下装置
DE102008015826A1 (de) * 2008-03-27 2009-10-01 Sms Siemag Aktiengesellschaft Walzgerüst
CN201603741U (zh) * 2010-01-28 2010-10-13 北京京诚瑞信长材工程技术有限公司 二辊式可逆轧机
CN102085533B (zh) 2010-12-01 2013-06-12 中冶京诚工程技术有限公司 轧机上支承辊平衡装置
CN102085532B (zh) 2010-12-01 2013-07-10 中冶京诚工程技术有限公司 轧机上支承辊平衡装置
CN103286138A (zh) 2012-02-27 2013-09-11 扬州诚德钢管有限公司 一种上轧辊平衡装置
CN103286139A (zh) 2012-02-27 2013-09-11 扬州诚德钢管有限公司 一种轧机下轧辊在线调整装置
CN203541082U (zh) 2013-11-26 2014-04-16 天津市中重科技工程有限公司 轧机上辊平衡装置
CN208466847U (zh) 2018-05-30 2019-02-05 温州市强龙铜业有限公司 一种四辊轧机

Also Published As

Publication number Publication date
WO2020173614A1 (fr) 2020-09-03
JP7227388B2 (ja) 2023-02-21
JP2022520175A (ja) 2022-03-29
CN113498364A (zh) 2021-10-12
US20220143660A1 (en) 2022-05-12
US11779973B2 (en) 2023-10-10
EP3930934A1 (fr) 2022-01-05
CN113498364B (zh) 2023-08-11
DE102019202691A1 (de) 2020-09-03

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