EP0734794B1 - Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern - Google Patents
Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern Download PDFInfo
- Publication number
- EP0734794B1 EP0734794B1 EP19960250070 EP96250070A EP0734794B1 EP 0734794 B1 EP0734794 B1 EP 0734794B1 EP 19960250070 EP19960250070 EP 19960250070 EP 96250070 A EP96250070 A EP 96250070A EP 0734794 B1 EP0734794 B1 EP 0734794B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- backing
- rolls
- roll
- rolling
- working
- 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.)
- Expired - Lifetime
Links
- 238000005096 rolling process Methods 0.000 title claims description 38
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000013000 roll bending Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Images
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
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B13/023—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally the axis of the rolls being other than perpendicular to the direction of movement of the product, e.g. cross-rolling
-
- 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
- B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
- B21B31/26—Adjusting eccentrically-mounted roll bearings
Definitions
- the invention relates to a roll stand with support and work rolls for rolling Sheets and strips, with the upper and lower work rolls together with the backup rollers assigned to them by pairs in opposite directions Horizontal shifting of the between the columns of the stand Roll stand formed by means of rolls stored in chocks by means of rolls the chocks of actually assigned displacement drives from the common vertical plane can be moved out into positions in which through the roller axes of the upper work and backup rollers and the lower Cross work and backup rolls running vertical planes,
- Patent application 0 525 552 A1 suggests for the chocks of the Work and the backup rollers common sliding blocks between the Chocks and the roller stand are arranged and at their the Fitting sides facing away from wedge surfaces, which with vertical adjustable sliding drives with the same wedge surfaces correspond. At the Adjusting these sliding drives cause the wedge surfaces to slide on one another a horizontal displacement of the sliding blocks, which makes them laterally adjust the adjacent chocks.
- actuators such as Hydraulic cylinders or spindles acting mechanically on the chocks with which each the chocks for changing the roller positions within the Stand window can be moved horizontally.
- the object of the present invention is a Generate rolling mill of the generic type with little mechanical effort, that entangling with simple sliding drives and high system stability the rollers with conventional bearings is possible, the installation and removal of the Work rolls is not hindered compared to conventional roll stands.
- each roll neck of Work rolls in a roll bearing designed as a self-aligning bearing Eccentric bushing is mounted in the chock, with each eccentric bushing in opposite directions is rotatable to the other eccentric bushing and that each roll neck of the Back-up rolls in a sliding frame inside the roll bearing of the chock is horizontally displaceable, the setting angle of upper work and backup rolls and the lower work and backup rolls are the same.
- the proposed solution has the essential advantage over the prior art Technology on that all adjustment means, both for the work and the backup rolls, are arranged within the chocks and with them in a conventional manner can be installed and removed.
- the proposal of the invention enables the use conventional work roll bending devices in the roll stands, for example in the form of known bending blocks supported in the stand window.
- the adjustment the work and backup rolls with different adjustment means have advantages in Roll change - the work rolls can be independent of the backup rolls to be changed and takes into account the different workload and stress Back-up rolls from the rolling forces. Adapted to the loads that occur the respective roller bearings are built very small, which on the one hand the price the rolling stands and on the other hand reduced the space requirement. By the latter advantage it is possible to retrofit the invention into existing rolling stands to install.
- the Work rolls the eccentric bushings on their outer sides with peripheral teeth are provided, in which the correspondingly formed toothing of a rotary drive engages and that the two eccentric bushings on a work roll Reversal of direction of rotation are mechanically coupled.
- shifting eccentrics are provided with which the in the eccentric roller bearings mounted extremely stable on both sides of the Roll stand can be moved horizontally in opposite directions.
- the roller axis moves with respect to the center of the chock, which even vertically adjusted only with regard to the required height in the roll stand must become. Since the bearings of the work rolls are designed as self-aligning bearings, one is The work rolls can easily be set from their central position.
- the rotary drives that engage in the external teeth on the eccentric bushings are structurally simple and reliable, especially if after another Feature of the invention in the work rolls of the rotary drive for the eccentric bushings as a geared motor provided on the operating side of the roll stand Planetary gear is formed, the drive pinion on the operator side directly and on the drive side via a connecting the drive pinion to each other Work roll parallel drive shaft and with the interposition of a Intermediate wheel combs with the interlockings of the eccentric bushings, whereby at the spur gear ratios in different directions of rotation of the eccentric bushes is the same on both sides.
- the PTO shaft transmits the Drive power to the drive side of the roll stand, where a smaller one Eccentric bushings can be provided which are used to reverse the direction of rotation Idler gear is connected to the drive.
- Such bearings are small in size and still able to absorb the occurring forces safely.
- the expansion of working waits at the Storage according to the invention is easily possible on the operator side because the drive-side chock with its adjustment mechanism for the Eccentric bushing even with bending blocks permanently installed on the roll stand, fit easily through the stand window.
- the rotary drive is included preferably integrated in one of the corners of the chock.
- the storage of the support rollers is thereby according to a feature of the invention characterized in that the sliding frame receiving the roller bearing over Power-operated in the longitudinal direction of the roller, adjustable on both sides of each sliding frame vertically arranged wedge strips can be moved and at the same time by a vertical in Bearing center axis is pivotable, with the back of the in with Wedge ridges provided with wedge surfaces rising along the longitudinal direction of the roll over a large area fit the inside of the box-shaped chock and between the Sliding frame and the wedge pressure pieces are provided, on the one hand with corresponding wedge surfaces on the wedge surfaces of the wedge strips and on the other hand for pivoting the sliding frame with their spherically designed Place the back on spherically shaped parts of the sliding frame.
- the invention provides a particularly stable construction for the support roller bearing before, because the backup rollers in their storage particularly high radial forming forces have to take up the work rolls (approx. 2000 to 3000t).
- the sliding frame is particularly cheap suitable.
- the radial rolling forces are via the bearings and the sliding frame through the large contact surface into the chock.
- the adaptation to the The spherical pressure pieces in contact make misalignment when setting with corresponding radii on the sliding frame; the radii have theirs Center in the middle of the camp.
- the support rollers for adjusting the sliding frame are preferred between each of the two wedge strips and the one receiving the sliding frame Installation piece hydraulic cylinders are arranged, each on one of the wedge strips acting, adjust this opposite to the other wedge bar, the Movements are hydraulically synchronized and the sliding frame in the Roll position with blocked hydraulic cylinders can be determined in the chock. Since the If you attack the hydraulic cylinder on the chock, you can use it together get extended. The entire adjustment mechanism remains on the chock limited. Because of the steep taper of the wedge strips, there is no self-locking.
- the sliding frame according to the invention makes it possible to dispense with self-aligning bearings, which are not optimally suited to absorb the high loads in the support rollers. Instead, it is provided that each roll neck of the backup rolls in one preferably 4-row cylindrical or tapered roller bearings in the sliding frame is stored.
- the bearings can be conventional bearings.
- the axial bearing of the backup roller must also be in the restricted position can adjust. Therefore it is provided that for receiving the on the support rollers acting axial forces additional tapered roller bearings on the extended Roll journals are fixed on one side of the support rolls, the bearing outer rings of which are together swiveling with the roller in a separate housing Articulated connections are supported on the chock in the axial direction of the roller. As a result, the support rollers can be in without hindering the pivoting Be kept in the axial direction.
- stator columns of the rolling stand are 1 referred to, in the stator windows 2 formed between two stator columns 1 in Chocks 3 the work rolls 4 are mounted on their roll journals 5 and 6.
- the roll neck 6 on the drive side 7 of the roll stand is extended and 8 at 9 can be coupled to the drive of the work roll 4.
- each roll neck 5, the work roll 4 in one Eccentric bushing 10 is supported in a self-aligning bearing 11.
- the eccentric bush on the Operating side 12 of the roll stand is larger than the eccentric bush 10 on the Drive side 7 of the roll stand formed and with an externally toothed collar 13 provided, in the external toothing of the drive pinion 14 of a rotary drive 15 engages.
- the pinion shaft of the drive pinion 14 is also via the intermediate shaft 16 connected to a propeller shaft 17 via which the drive torque of the rotary drive 15 via the pinion shaft 16 to the drive pinion 18 on the drive side of the Roll stand is transferable, which meshes with the intermediate wheel 19 Eccentric bushing 10, which is toothed on its outer circumference, drives.
- the outer rings of the Self-aligning bearings 11 are on the operating side 12 as cylindrical roller bearings with spherical Outer ring formed which has an inclined position within the eccentric bushing 10 enables.
- the bearing absorbs axial forces Spherical roller bearings designed with a cylindrical outer ring.
- the idler gear 19, which meshes with the drive pinion 18, can be seen the propeller shaft 17 with the drive pinion 14 of the not shown here Gear motor is connected.
- the support roller 25 is in Figure 2 in Connection with the lower work roll 4 indicated.
- the bearing of the support roller 25 can be seen according to the invention.
- Stand columns 1 of the roll stand is, as in conventional roll stands, on on each side of the support roller 25 a receiving the roll neck 26 and 27
- Installation piece 28 arranged in a known manner in the stator window 2 between the column columns 1 is displaceable in the vertical direction.
- the left-hand chock Half of the roller is omitted for the sake of simplicity.
- the chock 28 is box-shaped formed and receives a sliding frame 29 inside, in which the Roll pin 26 or 27 of the support roller 25 is mounted in the roller bearing 30.
- the sliding frame 29 is in the area of its corners, as in the lower illustration of the Drawing 4 recognizable, spherical, with a center of radius in the center of the roller bearing 30.
- the center of the radius is designated 31.
- the sliding frame 29 is adapted and is bevelled on the opposite side to be with to correspond to a wedge ledge 34, but with the same incline opposite slope is provided.
- the wedge bar 34 is on the wedge surface opposite side is flat and, as can be seen at 35, lies flat the inside of the chock 28.
- the wedge strips 34 on both sides of the sliding frame 29 have a hydraulic cylinder 36 coupled, one of which is shown in the drawing figure 4 below.
- the hydraulic cylinder 36 moves the wedge bar 34 in the longitudinal direction, the hydraulic cylinders arranged on both sides of the sliding frame 29 in opposite directions with hydraulic fluid, so that the wedge strips opposite (in the drawing one up and the other down) be moved.
- the roll neck 26 or 27 of the backup roll moves 25 in one direction or the other within the chock 28 and causes one Set the back-up roller 25 to the same extent as that in the eccentrics 10 twisted work roll 6.7.
- the pressure ring 39 is on a parallel guide at 43 adjustably attached and can move in the pivoting direction of the roll neck 27 run. The associated slight movement in the transverse direction is for the Function without meaning.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Support Of The Bearing (AREA)
- Rolls And Other Rotary Bodies (AREA)
Description
- Fig. 1
- Einen schematischenLängsschnitt durch ein Walzgerüst nach der Erfindung im Bereich der Arbeitswalzenlager,
- Fig. 2
- einen Querschnitt durch die Exzenterbuchsen der Arbeitswalzen
- Fig. 3
- einen Horizontalschnitt durch das Walzgerüst nach Figur 1 in der Ebene der Stützwalzenlängsmitte
- Fig.4
- einen Querschnitt durch den Verschieberahmen der Stützwalzen in zwei Ansichten.
Claims (9)
- Walzgerüst mit Stütz- und Arbeitswalzen (4,25) zum Walzen von Blechen und Bändern, bei dem die oberen und unteren Arbeitswalzen (4) zusammen mit den ihnen zugeordneten Stützwalzen (25) durch paarweises gegensinniges Horizontalverschieben der innerhalb der zwischen den Ständersäulen (1) der Walzenständer gebildeten Ständerfenster (2) in Einbaustücken (3,28) gelagerten Walzen (4,25) mittels den Einbaustücken (3,28) wirkmäßig zugeordneter Verschiebeantriebe (15,36) aus der gemeinsamen Vertikalebene heraus in solche Stellungen verschiebbar sind, in denen sich die durch die Walzenachsen der oberen Arbeits- und Stützwalzen (4,25) und der unteren Arbeits- und Stützwalzen (4,25) verlaufenden Vertikalebenen kreuzen,
dadurch gekennzeichnet,
daß jeder Walzenzapfen (5,6) der Arbeitswalzen (4) in einer das als Pendellager (11) ausgebildete Walzenlager aufnehmenden Exzenterbuchse (10) im Einbaustück (3) gelagert ist, wobei jede Exzenterbuchse (10) gegensinnig zur anderen Exzenterbuchse (10) verdrehbar ist und daß jeder Walzenzapfen (26,27) der Stützwalzen (25) in einem das Walzenlager (30) aufnehmenden Verschieberahmen (29) innerhalb des Einbaustückes (28) horizontal querverschiebbar ist, wobei die Schränkungswinkel der oberen Arbeits-und Stützwalzen (4,25) und der unteren Arbeits-und Stützwalzen (4,25) gleich sind. - Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern nach Anspruch 1,
dadurch gekennzeichnet,
daß bei den Arbeitswalzen (4) die Exzenterbuchsen (10) an ihren Außenseiten mit Umfangsverzahnungen versehen sind, in die die entsprechend ausgebildete Verzahnung eines Antriebsritzels (14) eines Drehantriebes (15) eingreift und daß die beiden Exzenterbuchsen (10) einer Arbeitswalze (4) bei Drehrichtungsumkehr mechanisch miteinander gekoppelt sind. - Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern nach Anspruch 2,
dadurch gekennzeichnet,
daß bei den Arbeitswalzen (4) der Drehantrieb (15) für die Exzenterbuchsen (10) als an der Bedienseite (12) des Walzgerüstes vorgesehener Getriebemotor mit Planetengetriebe ausgebildet ist, dessen Antriebsritzel (14) an der Bedienseite (12) direkt und an der Antriebsseite (7) über eine die Antriebsritzel (14,18) miteinander verbindende zur Arbeitswalze (4) parallel verlaufende Gelenkwelle (17) und unter Zwischenschaltung eines Zwischenrades (19) mit den Verzahnungen der Exzenterbuchsen (10) kämmt, wobei bei unterschiedlichen Drehrichtungen der Exzenterbuchsen (10) die Stirnradübersetzungen auf beiden Seiten gleich ist. - Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß bei den Arbeitswalzen (4) als Pendellager (11) auf der Bedienseite (12) des Walzgerüstes Zylinderrollenlager oder Kegelrollenlager mit kugligen Außenringen und auf der Antriebsseite (7) Axialkräfte aufnehmende Pendelrollenlager (11) mit zylindrischen Außenringen eingebaut sind. - Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß bei den Stützwalzen (25) der das Walzenlager (30) aufnehmende Verschieberahmen (29) über kraftbetätigt in Walzenlängsrichtung verstellbare beidseitig jedes Verschieberahmens (29) vertikal angeordnete Keilleisten (34)verschiebbar und gleichzeitig um eine vertikale in Lagermitte verlaufende Achse verschwenkbar ist, wobei die Rückseiten der mit in Walzenlängsrichtung ansteigenden Keilflächen versehenen Keilleisten (34) großflächig an der Innenseite des kastenförmigen Einbaustückes (28) anlegen und zwischen dem Verschieberahmen (29) und den Keilleisten (34) Druckstücke (33) vorgesehen sind, die einerseits mit korrespondierenden Keilflächen an den Keilflächen der Keilleisten (34) und andererseits zur Verschwenkung der Verschieberahmen (29) mit ihren sphärisch ausgebildeten Rückseiten an sphärisch ausgebildeten Teilen des Verschieberahmens (29) anliegen. - Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern nach einem der Ansprüche 1 bis 5
dadurch gekennzeichnet,
daß bei den Stützwalzen (25) zum Verstellen des Verschieberahmens (29) zwischen jeder der beiden Keilleisten (34) und dem den Verschieberahmen (29) aufnehmende Einbaustück (28) Hydraulikzylinder (36) angeordnet sind, die auf jeweils eine der Keilleisten (34) wirkend, diese entgegengesetzt zur anderen Keilleiste (34) verstellen, wobei die Bewegungen hydraulisch synchronisiert sind und daß der Verschieberahmen (29) in der Walzposition bei blockierten Hydraulikzylindern (36) im Einbaustück (28) festlegbar ist. - Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern nach einem der Ansprüche 1 bis 6
dadurch gekennzeichnet,
daß daß jeder Walzenzapfen (26,27) der Stützwalzen (25) in einem vorzugsweise 4-reihigen Zylinder- oder Kegelrollenlager im Verschieberahmen (29) gelagert ist - Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß zur Aufnahme der auf die Stützwalzen (25) wirkenden Axialkräfte zusätzliche Kegelrollenlager auf dem verlängerten Walzenzapfen (27) einer Seite der Stützwalzen (25) festgelegt sind, deren Lageraußenringe - zusammen mit der Stützwalze (25) in einem separaten Gehäuse (40) verschwenkbar-über Gelenkverbindungen (Gestänge 38) in Axialrichtung der Stützwalze (25) am Einbaustück (28) abgestützt sind. - Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern nach einem der Ansprüche 1 bis 8
dadurch gekennzeichnet,
daß zur Abdichtung der Stützwalzen (25) gegenüber den Zylinder- oder Kegelrollenlager kombinierte Radial-Dichtringe zwischen Lagerzapfen (26,27)und Verschieberahmen (29) und Lippen-Plandichtungen zwischen Stützwalze (25) und Einbaustück (28) verwendet werden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19512929 | 1995-03-30 | ||
DE1995112929 DE19512929C1 (de) | 1995-03-30 | 1995-03-30 | Walzgerüst mit Stütz-und Arbeitszwalzen zum Walzen von Blechen und Bändern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0734794A1 EP0734794A1 (de) | 1996-10-02 |
EP0734794B1 true EP0734794B1 (de) | 1999-01-27 |
Family
ID=7758961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19960250070 Expired - Lifetime EP0734794B1 (de) | 1995-03-30 | 1996-03-28 | Walzgerüst mit Stütz- und Arbeitswalzen zum Walzen von Blechen und Bändern |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0734794B1 (de) |
DE (1) | DE19512929C1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1288931B1 (it) * | 1996-06-24 | 1998-09-25 | Danieli Off Mecc | Dispositivo di compensazione per guarniture in gabbie di laminazione a quarto con movimentazione incrociata dei cilindri |
CN110421011B (zh) * | 2019-08-16 | 2024-07-05 | 中冶南方工程技术有限公司 | 用于18辊轧机侧支承装置的标定装置及标定方法 |
DE102019122509A1 (de) * | 2019-08-21 | 2021-02-25 | Kolbus Gmbh & Co. Kg | Vorrichtung zur Herstellung von Buchdecken, Schachteldecken oder Spielebrettern |
WO2023217309A1 (de) * | 2022-05-12 | 2023-11-16 | Matthews International GmbH | Antriebsvorrichtung für eine exzenterlagerung sowie ein entsprechender kalander |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2965920A (en) * | 1958-01-09 | 1960-12-27 | Farrel Birmingham Co Inc | Calender or like device |
JPS602924B2 (ja) * | 1977-04-13 | 1985-01-24 | 石川島播磨重工業株式会社 | 多段圧延機による圧延方法及び装置 |
JPS5449960A (en) * | 1977-09-29 | 1979-04-19 | Masao Kubota | Rolling mill |
JPS6040924B2 (ja) * | 1980-06-10 | 1985-09-13 | 新日本製鐵株式会社 | クロスロ−ル圧延機 |
JPS57190704A (en) * | 1981-05-20 | 1982-11-24 | Mitsubishi Heavy Ind Ltd | Cross rolling mill |
JPS60118309A (ja) * | 1983-11-30 | 1985-06-25 | Mitsubishi Heavy Ind Ltd | クロスロール圧延機におけるバックアップロールチョック装置 |
JP2862439B2 (ja) * | 1991-07-30 | 1999-03-03 | 三菱重工業株式会社 | クロスロール圧延機のロールクロス装置 |
JP3200992B2 (ja) * | 1992-08-17 | 2001-08-20 | 石川島播磨重工業株式会社 | 圧延ロールの支持構造 |
-
1995
- 1995-03-30 DE DE1995112929 patent/DE19512929C1/de not_active Expired - Fee Related
-
1996
- 1996-03-28 EP EP19960250070 patent/EP0734794B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19512929C1 (de) | 1996-05-15 |
EP0734794A1 (de) | 1996-10-02 |
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