EP3930934A1 - Cage de laminoir pour le laminage de matériaux métalliques - Google Patents

Cage de laminoir pour le laminage de matériaux métalliques

Info

Publication number
EP3930934A1
EP3930934A1 EP20700906.9A EP20700906A EP3930934A1 EP 3930934 A1 EP3930934 A1 EP 3930934A1 EP 20700906 A EP20700906 A EP 20700906A EP 3930934 A1 EP3930934 A1 EP 3930934A1
Authority
EP
European Patent Office
Prior art keywords
piston
roll stand
roll
cylinder
axial end
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.)
Granted
Application number
EP20700906.9A
Other languages
German (de)
English (en)
Other versions
EP3930934B1 (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
Original Assignee
SMS Group GmbH
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 SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3930934A1 publication Critical patent/EP3930934A1/fr
Application granted granted Critical
Publication of EP3930934B1 publication Critical patent/EP3930934B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 traverse, a roll being rotatably mounted in the roll stands, the roll being in operative connection with a balancing crossbeam and with at least one hydraulic piston-cylinder system arranged in the stand traverse is, with which a tensile force can be generated between the stand traverse and the balancing traverse.
  • a rolling stand of the generic type is known, for example, from DE 21 65 313 A1.
  • the upper rolls in the roll stand have to be pulled or balanced against the pitch system by a balancing system. This allows the upper rolls to be moved or positioned in the roll stand. In addition, games in employment are eliminated by balancing.
  • roll balancings are used in roll stands.
  • the previously known concept is characterized by a hydraulic cylinder, which is arranged centrally in the cross-member and has a classic structure. The cylinder engages the components to be balanced via a cross member and a balancing cross member.
  • Solutions are also known in which four cylinders are used, which engage the components directly through holes in the upper crossheads of the stand. Solutions with two cylinders are also known, but they have a classic structure. Differential cylinders or classic plunger cylinders are used here.
  • the CN 103 286 138 A provides for two classic differential cylinders attached to the outside of the scaffolding on additional brackets, which are directly connected to a balancing beam.
  • the CN 103 286 139 A rests on two classic differential cylinders attached to the inside of the frame on the column cross member.
  • CN 102085532 B and CN 203541082 U show further similar solutions.
  • EP 1 907 143 B1 Problems arise with the previously known solutions in particular with high scaffold rises.
  • the piston-cylinder systems tend to leak or cause relatively high wear on seals and guide elements.
  • high forces occur on the cylinder seals, which often results in leaks.
  • high loads occur in the column crossbeam, especially with wide scaffolding. Because of this, the component must be designed in a complex, heavy and costly manner.
  • the invention is based on the task of designing a rolling stand of the generic type in such a way that leaks can be better avoided, in particular with high stands. Furthermore, a simple structure of the scaffolding 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, wherein a piston is arranged displaceably in the cylinder housing and wherein the piston is the cylinder housing in each Operating state protrudes both at its upper axial end and at its lower axial end
  • two piston-cylinder systems are preferably arranged symmetrically with respect to a central plane of the roll stands.
  • the piston has a first external diameter in an upper section, the piston having a second external diameter in a lower section which is smaller than the first external diameter.
  • connection between the stand crossbeam and the balancing crossbeam is preferably established via a tie rod that is connected to the piston and the balancing crossbeam.
  • a preferred embodiment of the invention provides that the pull rod axially penetrates the piston and is attached to the piston in an upper region of the latter.
  • the pull rod can be releasably connected to the piston, a locking mechanism being available for the releasable connection.
  • the locking mechanism is preferably arranged on the cylinder housing (ie above the same).
  • the locking mechanism preferably comprises a swivel drive which, by means of a swivel movement, causes locking and unlocking.
  • the locking mechanism furthermore preferably comprises a cover hood which covers the locking mechanism inaccessible from the outside.
  • the rolling stand is preferably a roughing mill stand or a heavy-plate rolling 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 non-ferrous metals.
  • the proposed concept reduces the load on the cylinder, especially with regard to its seals and its guide elements, particularly in the case of large scaffolding stairways. This leads to a longer service life for the components used.
  • the seals and guide elements that are 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 components for a lock can be dispensed with. Moving parts are not accessible due to the closed design, which makes additional shut-off measures for setting the required security unnecessary.
  • an integrated or closed design of cylinder, pull rod and locking is made possible. This design also enables effective fume extraction. Finally, a favorable flow of forces is made possible.
  • FIG. 2 shows the part of the roll stand according to FIG. 1 seen from direction “A” as marked in FIG.
  • a roll stand 1 can be seen which comprises at least one, typically two roll stands 2.
  • a column cross member 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 downward, although this is not shown).
  • This technology which is well known per se, is described in detail in the above-mentioned documents, so that reference is expressly made to it.
  • the balancing forces are generated by two piston-cylinder systems 6 which - as Figure 1 shows - are arranged symmetrically to a central plane M of the roll stand 2, but spaced apart from this central plane.
  • each piston-cylinder system 6 has a cylinder housing 7 which has an upper axial end 8 and a lower axial end 9. At the upper axial end 8, the cylinder housing 7 is closed by a cylinder cover 16.
  • 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, the cylinder housing 7 in each operating state both at its upper axial end 8 and at its lower axial end 9 towers above, d. H. fully interspersed. In this way, a high degree of stability is produced, which is given 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. This means that the Inside the piston-cylinder system 6, a hydraulic chamber is formed to which hydraulic fluid can be applied.
  • the piston 10 is hollow and is penetrated by a pull rod 11. 5
  • the tie rod 11 is connected above the piston 10 at its upper axial end to the piston 10 in a lockable manner. At its lower axial end, the pull rod 11 is connected to the balancing cross member 5.
  • the locking mechanism comprises a locking sleeve 12, a locking piece 13, a cover 14 and a swivel drive 15.
  • the pull rod 11 can be locked or unlocked with the upper end of the piston 10 by a swiveling movement of the swivel drive 15. Between the locking piece 13 and the piston 10 is a
  • connection of the tie rod 11 to the balancing cross member 5 is accomplished by a pivot bearing 18, an end piece 20, an anti-twist device 19 and a cover 20 21.
  • the essential element of the proposed construction is therefore that
  • Cylinder housing completely penetrating (in particular hollow) piston rod 10, which also with large openings, i. H. with a large cylinder stroke, safely 25 is performed.
  • the pull rod 11 is guided through the piston 10 and fastened with its lower end to the balancing cross member 5.
  • the tie rod to the adjacent components is articulated (by means of axial pivot bearings 17 and 18). This reduces loads on the cylinder from the rolling process; the cylinder can be exchanged with little effort.
  • the balance beam and the tie rods can remain in the scaffolding for this purpose. Due to the compact design, a closed stage construction can be achieved, which is necessary for scaffolding types with extraction (for non-ferrous metals and stainless steel). The effort for this is significantly reduced. Due to the integrated design, no moving parts are accessible, which means that measures to shut off the balancing (e.g. using fences) are not required. Additional devices for locking the balancing can also be omitted.
  • the cylinders can be serviced and exchanged with little effort, without having to dismantle the balancing beam and the tie rods.
  • the compact design also enables the flexible arrangement of components on the scaffolding platform (e.g. drive components for mechanical adjustment and valve stands).

Landscapes

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

Abstract

L'invention concerne une cage de laminoir (1) pour le laminage de matériaux métalliques, comprenant deux colonnes de laminoir (2) avec une traverse de colonne (3). Un cylindre (4) est monté à rotation dans les colonnes de laminoir (2), le cylindre (4) étant en liaison fonctionnelle avec une traverse d'équilibrage (5) et au moins un système piston-cylindre hydraulique (6) étant disposé dans la traverse de colonne (3), avec lequel une force de traction peut être produite entre la traverse de colonne (3) et la traverse d'équilibrage (5). L'invention vise à éviter les fuites, en particulier lors de grandes montées de la cage, et se caractérise à cet effet en ce que le système piston-cylindre (6) possède un boîtier de cylindre (7) ayant une extrémité axiale supérieure (8) et une extrémité axiale inférieure (9). Un piston (10) est disposé de manière coulissante dans le boîtier de cylindre (7) et le piston (10) fait saillie du boîtier de cylindre (7) dans chaque état de fonctionnement à la fois au niveau de son extrémité axiale supérieure (8) et au niveau de son extrémité axiale inférieure (9).
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 true EP3930934A1 (fr) 2022-01-05
EP3930934B1 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
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
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
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
US20220143660A1 (en) 2022-05-12
JP2022520175A (ja) 2022-03-29
EP3930934B1 (fr) 2022-06-29
DE102019202691A1 (de) 2020-09-03
US11779973B2 (en) 2023-10-10
JP7227388B2 (ja) 2023-02-21
CN113498364A (zh) 2021-10-12
CN113498364B (zh) 2023-08-11

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