EP3031540B1 - Cage de laminoir comprenant un dispositif pour ajuster l'entrefer - Google Patents

Cage de laminoir comprenant un dispositif pour ajuster l'entrefer Download PDF

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Publication number
EP3031540B1
EP3031540B1 EP15190489.3A EP15190489A EP3031540B1 EP 3031540 B1 EP3031540 B1 EP 3031540B1 EP 15190489 A EP15190489 A EP 15190489A EP 3031540 B1 EP3031540 B1 EP 3031540B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
stroke
piston
long
roll stand
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.)
Not-in-force
Application number
EP15190489.3A
Other languages
German (de)
English (en)
Other versions
EP3031540A1 (fr
Inventor
Axel Barten
Harald Schlag
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.)
Achenbach Buschhetten GmbH and Co KG
Original Assignee
Achenbach Buschhetten GmbH and Co KG
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 Achenbach Buschhetten GmbH and Co KG filed Critical Achenbach Buschhetten GmbH and Co KG
Publication of EP3031540A1 publication Critical patent/EP3031540A1/fr
Application granted granted Critical
Publication of EP3031540B1 publication Critical patent/EP3031540B1/fr
Not-in-force legal-status Critical Current
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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons

Definitions

  • the present invention relates to a rolling stand, in particular hot rolling mill, with a lower and an upper work roll and at least one WalzenanstellISS, which is supported on a support yoke of the rolling mill and serves to produce a rolling force acting in a formed between the work rolls rolling force, the Walzenanstell responded a telescopic cylinder having a first Anstellzylinder and a second Anstellzylinder, wherein a piston of the second Anstellzylinders is guided in a piston of the first Anstellzylinders.
  • Roll stands are usually operated in a one-way or Reversier town in which the rolling stock in several so-called stitches by the stitch to Stitch smaller nip roll gap is moved through to get from an initial thickness of the rolling stock to the desired material thickness of the rolling stock at the end of the rolling process.
  • a rolling stand of the aforementioned type comprising a Walzenanstell driving with a telescopic cylinder having a first Anstellzylinder and a second Anstellzylinder, wherein a piston of the second Anstellzylinders is guided in a piston of the first Anstellzylinders.
  • the cylinder chambers of the adjusting cylinder of the known Walzenanstell listening are hydraulically connected to each other, wherein the Anstellzylinder have an identical stroke.
  • the present invention has for its object to propose a rolling stand, which is provided with a Walzenanstell Nur that prevents the known Gegenwithstand an the work rolls.
  • the rolling mill according to the invention has the features of claim 1.
  • the first setting cylinder is designed as a long-stroke cylinder with a long-stroke piston and the second setting cylinder is designed as a short-stroke cylinder with a short-stroke piston, wherein the long-stroke cylinder has a locking device for locking the stroke, which is positively or positively connected to the support yoke.
  • the inventively designed Walzenanstell pain thus allows a differentiated roller adjustment, wherein the essential part of the employment to be executed by the Walzenanstell responded Anstellrange is performed by the piston of the long-stroke and the part of the Anstellrange, for generating the rolling force and for adjusting or changing the roll gap, in particular at a thickness control of the rolling stock thickness, must be performed by the Walzenanstell responded is performed by the piston of the Kurzhubzylinders.
  • a discharge of the force acting on the piston of the long stroke cylinder pressure medium column can be done by deriving the power flow into the rolling stand after the generation of the rolling force, with the result that no compression of the piston the Langhubzylinders acting pressure medium volume takes place and only the comparatively small pressure medium volume of the Kurzhubzylinders is acted upon by the rolling force.
  • the long-stroke piston forms a cylinder space of the short-stroke cylinder and pressurizing the short-stroke piston takes place by means of a pressure medium channel formed in a piston rod of the long-stroke cylinder or the short-stroke cylinder. It is particularly preferred if the pressure medium channel is formed in the piston rod of the long stroke, so that the pressure medium supply from above, so can be done from the side of the support yoke and so the installation of the pressure medium supply can be done outside of the rolling stand.
  • the piston rod for forming the inner engaging means has a bayonet collar with axial feedthrough grooves and peripheral locking grooves cooperating with a bayonet ring having radially inner locking projections for forming the outer engaging means, it is possible to perform the locking operation with a simple rotational movement about the piston rod axis of the bayonet ring.
  • a plurality of axial locking possibilities can be defined along the locking portion of the piston rod.
  • the locking device for actuation has a drive device arranged radially on the outside of the bayonet ring, which causes the bayonet ring to rotate about a piston axis of the long-stroke cylinder into a locking position.
  • the drive device is designed as a peripheral gear with a drive element arranged on the circumference of the bayonet ring
  • the peripheral gear can serve to form a lock transmission such that minimal rotation of the drive device causes a rotational movement of the bayonet ring sufficient to lock the locking projections in the lock grooves.
  • the drive device is designed as a hydraulic drive device, so that both the adjusting cylinder of Walzenanstell annoying and the drive device of the locking device can be acted upon by a common hydraulic system with pressure medium.
  • a particularly space-saving arrangement of Walzenanstell annoying in the rolling stand is possible if the cylinder space of the long-stroke is formed in the support yoke, and the locking device is formed on a connected to the support yoke cylinder bottom of the cylinder space.
  • a possible direct and rigid force application of the rolling force of the piston rod on the bayonet ring in the support yoke is possible when the bayonet ring of the outer locking device is positively supported on supporting yoke connected to the support cheeks.
  • Fig. 1 shows a Walzenanstell driving 10 with a long-stroke cylinder 11 with a arranged in a support yoke 12 of a roll stand 13 cylinder liner 14, which defines together with an upper cylinder bottom 15 and a lower cylinder bottom 16, a cylinder chamber 17 of the long-stroke cylinder 11, in which a long-stroke piston 18 is guided.
  • the long-stroke piston 18 has a piston rod 19, which is led out through the upper cylinder bottom 15.
  • both the upper cylinder bottom 15 and the lower cylinder base 16 are provided with a pressure medium channel 20 and 21, respectively.
  • the long-stroke piston 18 of the long-stroke cylinder 11 forms a cylinder chamber 22 of a short-stroke cylinder 23, whose short-stroke piston 24 is guided in the cylinder chamber 22.
  • the short-stroke piston 24 has a piston rod 25, which is guided through both a lower piston crown 26 of the long-stroke piston 18 and through the lower cylinder base 16 which delimits the cylinder chamber 17 of the long-stroke cylinder 11 downwards.
  • the piston rod 25 of the short-stroke piston 24 is connected at its lower end with a chock 27, which serves for supporting a shaft journal 28 of an upper of two the work rolls of the roll stand 13 receiving between them backup rolls.
  • Fig. 1 shows, for pressurizing a piston head 29 of the short-stroke piston 24, the piston rod 19 is provided with a pressure medium channel 30 and moreover has two pressure medium channels 31 for pressure relief or for pressurizing the piston crown 29.
  • the support yoke 12 is provided on its upper side with a locking device 32, which is arranged in the present case on the upper cylinder bottom 15 of the long-stroke cylinder 11 and is provided as a bayonet device with a arranged on the piston rod 19 bayonet 33 and a bayonet ring 34.
  • a locking device 32 which is arranged in the present case on the upper cylinder bottom 15 of the long-stroke cylinder 11 and is provided as a bayonet device with a arranged on the piston rod 19 bayonet 33 and a bayonet ring 34.
  • the bayonet 33 in the axial direction parallel to a piston axis 35 of the piston rod extending axial feedthrough grooves 36 and peripheral locking grooves 37, which allow the establishment of an engagement connection with radially inner locking projections 38 of the bayonet ring 34.
  • the locking device 32 is provided with a drive device 39 acting on the bayonet ring 34, which in the case of the present embodiment, two diametrically opposed to each other on the radially outer Has circumference of the bayonet ring 34 arranged drive wheels 40 which are rotated by hydraulically driven drive shafts 41.
  • both the long-stroke piston 18 of the long-stroke cylinder 11 and the short-stroke piston 24 of the short-stroke cylinder 23 are in their upper stroke position, in which the long-stroke piston 18 with its upper piston head 42 in the embodiment of the Walzenanstell responded 10 shown here at the upper cylinder bottom 15th rests and the short-stroke piston 24 rests with its piston crown 29 against the upper piston head 42 of the long-stroke piston 18.
  • the bayonet collar 33 and the bayonet ring 34 of the locking device 32 are disengaged, in which case the bayonet collar 33 is arranged above the bayonet ring 34 in such a way that, as in FIG Fig. 2 shown, the locking projections 38 of the bayonet ring 34 with the feedthrough grooves 36 of the bayonet collar 33 are aligned so that in this relative arrangement of the bayonet collar 33 and the bayonet ring 34 of Langhubkolben 18 can be moved axially down and thereby the locking projections 38 of the bayonet ring 34 in the feedthrough grooves 36th of the bayonet collar 33 can dive.
  • the upper piston head 42 of the long-stroke piston 18 has traveled a defined stroke H, which is selected, for example, according to a Popepaltrich the roll gap before performing the first pass in a rolling process, takes place by means of a rotary movement of the drive wheels 40 a rotation of the bayonet ring 34 about the piston axis 35, so that the locking projections 38, which are provided in the present case with a locking toothing 43, engage in the locking grooves 37, wherein in the present case, the locking grooves 37 in their groove base with a corresponding locking teeth 43 formed to the locking teeth 44th are provided.
  • the bayonet ring 34 is supported with its circumference form-fitting on connected to the support yoke 12 support cheeks 45 from.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Claims (9)

  1. Cage de laminoir (13) comprenant un cylindre de travail inférieur et un cylindre de travail supérieur et au moins un dispositif d'ajustement de cylindre (10) qui est supporté sur un étrier de support (12) de la cage de laminoir et sert à générer une force de laminage agissant dans une fente de laminage formée entre les cylindres de travail, le dispositif d'ajustement de cylindre comportant un cylindre télescopique comprenant un premier cylindre d'ajustement et und deuxième cylindre d'ajustement, un piston du deuxième cylindre d'ajustement étant guidé dans un piston du premier cylindre d'ajustement,
    caractérisée en ce que
    le premier cylindre d'ajustement est réalisé comme cylindre à longue course (11) comprenant un piston à longue course (18) et le deuxième cylindre d'ajustement est réalisé comme cylindre à faible course (23) comprenant a piston à faible course (24), le cylindre à longue course ayant un moyen d'arrêt (32) destiné à arrêter la course H, le moyen d'arrêt (32) étant relié avec l'étrier de support en liaison par force ou par forme.
  2. Cage de laminoir selon la revendication 1,
    caractérisée en ce que
    le piston à longue course (18) forme une chambre de cylindre (22) du cylindre à faible course (23) et le piston à faible course (24) est pressurisé par un canal de fluide de pression (30) formé dans une tige de piston (19, 25) du cylindre à longue course (11) ou du cylindre à faible course (23).
  3. Cage de laminoir selon la revendication 2,
    caractérisée en ce que
    le moyen d'arrêt (32) coopère avec la tige de piston (19) du cylindre à longue course (11) en ce qu'un moyen de verrouillage disposé sur la cage de laminoir (13) en dehors de la chambre de cylindre (17) du cylindre à longue course comporte un moyen d'engagement extérieur qui s'engage dans un moyen d'engagement intérieur formé à la circonférence de la tige de piston.
  4. Cage de laminoir selon la revendication 3,
    caractérisée en ce que
    la tige de piston (19) comporte un collet de baïonnette (33) ayant de rainures de guidage (36) axiales et des rainures de verrouillage (37) périphériques pour former le moyen d'engagement intérieur, le collet de baïonnette (33) coopérant avec un anneau de baïonnette (34) ayant des protrusions de verrouillage (38) intérieures radiales pour former le moyen d'engagement extérieur.
  5. Cage de laminoir selon la revendication 4,
    caractérisée en ce que
    le moyens d'arrêt (32) comporte un moyen d'entraînement (39) disposé radialement à l'extérieur de l'anneau de baïonnette (34) et destiné à actionner le moyen de verrouillage, le moyen d'entraînement (39) effectuant une rotation de l'anneau de baïonnette autour d'un axe de piston (35) de la tige de piston (19) du cylindre à longue course (11) dans une position de verrouillage.
  6. Cage de laminoir selon la revendication 5,
    caractérisée en ce que
    le moyen d'entraînement (39) est réalisé comme engrenage circonférentiel comprenant un élément d'entraînement disposé sur la circonférence de l'anneau de baïonnette (34).
  7. Cage de laminoir selon la revendication 5 ou 6,
    caractérisée en ce que
    le moyen d'entraînement (39) est réalisé comme moyen d'entraînement hydraulique.
  8. Cage de laminoir selon une ou plusieurs des revendications précédentes,
    caractérisée en ce que
    la chambre de cylindre (22) du cylindre à longue course (11) est formée dans l'étrier de support (12) et le moyen d'arrêt (32) est disposé sur un fond de cylindre (15) de la chambre de cylindre, le fond de cylindre (15) étant relié avec l'étrier de support.
  9. Cage de laminoir selon une ou plusieurs des revendications précédentes,
    caractérisée en ce que
    l'anneau de baïonnette (34) est supporté en liaison par forme sur des joues de support (45) reliées avec l'étrier de support (12).
EP15190489.3A 2014-12-08 2015-10-20 Cage de laminoir comprenant un dispositif pour ajuster l'entrefer Not-in-force EP3031540B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014225162.1A DE102014225162B4 (de) 2014-12-08 2014-12-08 Walzgerüst mit Walzenanstelleinrichtung

Publications (2)

Publication Number Publication Date
EP3031540A1 EP3031540A1 (fr) 2016-06-15
EP3031540B1 true EP3031540B1 (fr) 2017-03-22

Family

ID=54337180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15190489.3A Not-in-force EP3031540B1 (fr) 2014-12-08 2015-10-20 Cage de laminoir comprenant un dispositif pour ajuster l'entrefer

Country Status (2)

Country Link
EP (1) EP3031540B1 (fr)
DE (2) DE202014010143U1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652325A1 (de) * 1976-11-17 1978-05-18 Schloemann Siemag Ag Anstellvorrichtung fuer ein walzgeruest
JPS62130705A (ja) * 1985-12-02 1987-06-13 Nisshin Steel Co Ltd 油圧圧下装置
DE19525657A1 (de) * 1995-07-14 1997-01-16 Schloemann Siemag Ag Vorrichtung zum Einstellen des Walzspaltes in einem Walzgerüst
DE10141180A1 (de) * 2001-08-22 2003-03-06 Sms Demag Ag Walzgerüst zum Walzen von unterschiedlichem Walzgut, das unterschiedliche Walzkräfte erfordert
DE10357554B4 (de) * 2003-12-10 2005-11-24 Rexroth Mecman Gmbh Druckmittelzylinder mit einem über lösbare Sperrdruckmittelzylinder verstellbaren Hub

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
EP3031540A1 (fr) 2016-06-15
DE202014010143U1 (de) 2015-01-21
DE102014225162B4 (de) 2017-06-08
DE102014225162A1 (de) 2016-06-09

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