EP0920925A2 - Device for axially shifting rolls - Google Patents
Device for axially shifting rolls Download PDFInfo
- Publication number
- EP0920925A2 EP0920925A2 EP98122106A EP98122106A EP0920925A2 EP 0920925 A2 EP0920925 A2 EP 0920925A2 EP 98122106 A EP98122106 A EP 98122106A EP 98122106 A EP98122106 A EP 98122106A EP 0920925 A2 EP0920925 A2 EP 0920925A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- annular piston
- axial
- housing
- rolls
- 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.)
- Withdrawn
Links
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
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
- B21B31/18—Adjusting or positioning rolls by moving rolls axially
-
- 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
- B21B31/07—Adaptation of roll neck bearings
Definitions
- the invention relates to a device for axial displacement of rollers that are in, in the bearing chocks of the rolling stand Axial and radial bearings arranged coaxially one behind the other are stored, with an annular piston that can be pressurized with pressure medium, the circumference of one connected to the housing of the thrust bearing Carrier is arranged.
- the setting and compliance with a certain axial position of cooperating rollers is respecting the, in particular arise when rolling asymmetrical profiles in the roll caliber Axial forces for the rolling accuracy and straight running of the Rolling stock of importance.
- This also applies to the horizontal rolls of a universal roll stand because of a possible relative axial displacement between the horizontal rolls the tolerances of the Flange thickness can be adversely affected by parallel flange supports can.
- good tolerance tolerance of the flange thickness is required.
- it can be moved transversely to the rolling line Caliber cartridges, the two or more optionally in the rolling position have feasible so-called election calibers, attitude and compliance the relative axial position of the co-operating rollers required.
- the invention has for its object these devices to improve the axial displacement of the rollers so that at a structurally simplified construction the disadvantages of the large mentioned Overall length and the effort involved in assembling and disassembling the bearing be avoided.
- the annular piston Section of the bearing housing in a seated in the bearing chock Cylinder liner slidably arranged and against it with ring seals be sealed.
- the cylinder liner can be used for simplification the installation and removal of the bearing housing radially divided be trained.
- the invention is based on the embodiment shown in the drawing explained in more detail.
- the thrust bearing 5 consisting of the two inner bearing rings 5a, the bearing rollers 5b and the two outer Bearing rings 5c.
- the outer bearing rings 5c are from the bearing housing 6 comprises, here from three, by a screw 7th held together housing parts 6a, 6b, 6c.
- the thrust bearing 5 comprehensive peripheral portion of the bearing housing 6 has the Form of an annular piston RK on an annular cylindrical recess 8a of a cylinder liner 8 is included, which in the 9th indicated bearing chock sits.
- the between the radial Side surfaces of the ring-cylindrical recess 8a and this opposite annular surfaces of the annular piston RK formed annular gaps are above the pressure medium supply lines indicated by dashed lines 10 in connection with the pressure medium control, not shown.
- the RK ring piston and with it via the bearing housing 6 and the radial bearing 5 of the roll neck 1 can control this pressure medium and a linear encoder in the desired way be positioned.
- the cylinder liner 8 is split here and the ring piston RK sealed against them with ring seals.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur axialen Stellverschiebung von Walzen, die in, in den Lagereinbaustücken des Walzgerüstes koaxial hintereinander liegend angeordneten Axial- und Radiallagern gelagert sind, mit einem druckmittelbeaufschlagbaren Ringkolben, der auf dem Umfang eines mit dem Gehäuse des Axiallagers verbundenen Trägers angeordnet ist.The invention relates to a device for axial displacement of rollers that are in, in the bearing chocks of the rolling stand Axial and radial bearings arranged coaxially one behind the other are stored, with an annular piston that can be pressurized with pressure medium, the circumference of one connected to the housing of the thrust bearing Carrier is arranged.
Die Einstellung und Einhaltung einer bestimmten Axiallage von zusammenarbeitenden Walzen ist mit Rücksicht auf die, insbesondere beim Walzen von unsymmetrischen Profilen im Walzenkaliber entstehenden Axialkräfte für die Walzgenauigkeit und den Geradeauslauf des Walzgutes von Bedeutung. Dies gilt auch für die Horizontalwalzen eines Universalwalzgerüstes, da durch eine mögliche relative Axialverschiebung zwischen den Horizontalwalzen die Toleranzen der Flanschdicke von Parallelflanschträgern nachteilig beeinflußt werden können. Auch wird beim Walzen von Spundwandprofilen in einem Duo-Walzgerüst eine gute Toleranzhaltigkeit der Flanschdicken gefordert. Ferner ist bei Walzgerüsten mit quer zur Walzlinie verschiebbaren Kaliberkassetten, die zwei oder mehr wahlweise in Walzstellung bringbare sog. Wahlkaliber aufweisen, eine Einstellung und Einhaltung der relativen Axiallage der zusammenarbeitenden Walzen erforderlich.The setting and compliance with a certain axial position of cooperating rollers is respecting the, in particular arise when rolling asymmetrical profiles in the roll caliber Axial forces for the rolling accuracy and straight running of the Rolling stock of importance. This also applies to the horizontal rolls of a universal roll stand because of a possible relative axial displacement between the horizontal rolls the tolerances of the Flange thickness can be adversely affected by parallel flange supports can. Also when rolling sheet piling profiles in a duo mill stand good tolerance tolerance of the flange thickness is required. Furthermore, in the case of rolling stands, it can be moved transversely to the rolling line Caliber cartridges, the two or more optionally in the rolling position have feasible so-called election calibers, attitude and compliance the relative axial position of the co-operating rollers required.
Aus der EP 257 383 A2 ist es bekannt, die axiale Stellverschiebung der Walzen mit Hilfe eines, zweiseitig beaufschlagten Hydraulikaggregates zu bewirken, das aus einer konzentrisch zur Walze angeordneten Kolbenstange mit Ringkolben besteht. Die Kolbenstange ist dabei mit dem Lagergehäuse des Axiallagers verbunden. From EP 257 383 A2 it is known the axial adjustment displacement the rollers with the help of a double-acting hydraulic unit to effect that from a concentric to the roller There is a piston rod with an annular piston. The piston rod is connected to the bearing housing of the thrust bearing.
Der Nachteil dieser Ausbildungsform besteht einmal in der erheblichen Baulänge der Einrichtung in Achsrichtung über die Länge des Lagereinbaustücks hinaus und weiter in dem verhältnismäßig großen konstruktiven Bauaufwand. Hinzu kommt, daß bei einem Auswechseln der Lager jeweils zunächst das Hydraulikaggregat unter Lösung von dessen Verbindung mit dem Lagergehäuse ausgebaut bzw. wieder eingebaut werden muß.The disadvantage of this type of training is the considerable one Overall length of the device in the axial direction over the length of the Bearing chock out and further in the relatively large constructive construction effort. On top of that, when changing the bearing first of all the hydraulic unit by solving its connection with the bearing housing removed or reinstalled must become.
Der Erfindung liegt die Aufgabe zugrunde, diese Vorrichtungen zur axialen Stellverschiebung von Walzen so zu verbessern, daß bei einem konstruktiv vereinfachten Aufbau die erwähnten Nachteile der großen Baulänge und der Aufwand bei Montage und Demontage der Lagerung vermieden werden.The invention has for its object these devices to improve the axial displacement of the rollers so that at a structurally simplified construction the disadvantages of the large mentioned Overall length and the effort involved in assembling and disassembling the bearing be avoided.
Diese Aufgabe wird dadurch gelöst, daß der Außenumfang des die Lager umfassenden Abschnitts des Lagergehäuses als Ringkolben ausgebildet ist.This object is achieved in that the outer circumference of the bearing comprehensive section of the bearing housing formed as an annular piston is.
Diese erfindungsgemäße Ausbildung bringt neben den bereits geschilderten Verbesserungen noch den Vorteil mit sich, daß die Verschiebekräfte nicht, wie bei der bekannten Vorrichtung im wesentlichen außerhalb des Lagereinbaustücks, vor diesem und über Zwischenglieder und deren Verbindungselemente auf dem Walzenzapfen bzw. dessen Lager, sondern innerhalb des Lagereinbaustücks im unmittelbaren Bereich des Axiallagers auf dieses aufgebracht werden.This training according to the invention brings alongside those already described Improvements still have the advantage that the displacement forces not, as in the known device essentially outside the bearing chock, in front of this and via intermediate links and their connecting elements on the roll neck or its Bearing, but within the bearing chock in the immediate Area of the thrust bearing can be applied to this.
Wie die Erfindung weiter vorsieht, kann der ringkolbenförmige Abschnitt des Lagergehäuses in einer im Lagereinbaustück sitzenden Zylinderbüchse verschiebbar angeordnet und gegen diese mit Ringdichtungen abgedichtet sein. Die Zylinderbüchse kann dabei zur Vereinfachung des Ein- und Ausbaus des Lagergehäuses radial geteilt ausgebildet sein. As the invention further provides, the annular piston Section of the bearing housing in a seated in the bearing chock Cylinder liner slidably arranged and against it with ring seals be sealed. The cylinder liner can be used for simplification the installation and removal of the bearing housing radially divided be trained.
Die Erfindung wird anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention is based on the embodiment shown in the drawing explained in more detail.
Wie aus der Zeichnung ersichtlich, sitzen auf dem Walzenzapfen 1
ein Radiallager 2 und, festgelegt durch eine Zwischenbüchse 3 und
eine Klemmbüchse 4 das Axiallager 5, bestehend aus den beiden
inneren Lagerringen 5a, den Lagerrollen 5b und den beiden äußeren
Lagerringen 5c. Die äußeren Lagerringe 5c werden von dem Lagergehäuse
6 umfaßt, das hier aus drei, durch eine Schraubverbindung 7
zusammengehaltenen Gehäuseteilen 6a, 6b, 6c besteht. Der das Axiallager
5 umfassende Umfangsabschnitt des Lagergehäuses 6 weist die
Form eines Ringkolbens RK auf, der von einer ringzylindrischen Ausnehmung
8a einer Zylinderbüchse 8 umfaßt wird, die in dem mit 9
angedeuteten Lagereinbaustück sitzt. Die zwischen den radialen
Seitenflächen der ringzylindrischen Ausnehmung 8a und den, diesen
gegenüberliegenden Ringflächen des Ringkolbens RK gebildeten Ringspalte
stehen über die gestrichelt angedeuteten Druckmittelzuleitungen
10 mit der nicht dargestellten Druckmittelsteuerung in Verbindung.
Der Ringkolben RK und mit diesem über das Lagergehäuse 6
und das Radiallager 5 der Walzenzapfen 1 können über diese Druckmittelsteuerung
und einem Linearweggeber in gewünschter Weise
positioniert werden. Die Zylinderbüchse 8 ist hier geteilt ausgebildet
und der Ringkolben RK gegen diese mit Ringdichtungen abgedichtet.As can be seen from the drawing, sit on the roll neck 1
a radial bearing 2 and, determined by an
Claims (3)
dadurch gekennzeichnet,
daß der Außenumfang des das Radiallager (5) umfassenden Abschnitts des Lagergehäuses (6) als Ringkolben (RK) ausgebildet ist.Device for the axial displacement of rolls, which are mounted in axial and radial bearings arranged coaxially one behind the other in the bearing chocks of the rolls of the roll stand, with an annular piston which can be pressurized and which is arranged on the circumference of a carrier connected to the housing of the axial bearing,
characterized,
that the outer circumference of the section of the bearing housing (6) comprising the radial bearing (5) is designed as an annular piston (RK).
dadurch gekennzeichnet,
daß der ringkolbenförmige Abschnitt (RK) des Lagergehäuses (6) in einer im Lagereinbaustück (9) sitzenden Zylinderbüchse (8) verschiebbar angeordnet und gegen diese mit Ringdichtungen abgedichtet ist.Device according to claim 1,
characterized,
that the annular piston-shaped section (RK) of the bearing housing (6) is arranged displaceably in a cylinder liner (8) seated in the bearing chock (9) and is sealed against it with ring seals.
dadurch gekennzeichnet,
daß die Zylinderbüchse (8) radial geteilt ausgebildet ist.Device according to claims 1 and / or 2,
characterized,
that the cylinder liner (8) is formed radially divided.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19753882 | 1997-12-05 | ||
DE1997153882 DE19753882A1 (en) | 1997-12-05 | 1997-12-05 | Device for the axial displacement of rollers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0920925A2 true EP0920925A2 (en) | 1999-06-09 |
EP0920925A3 EP0920925A3 (en) | 1999-10-06 |
Family
ID=7850777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98122106A Withdrawn EP0920925A3 (en) | 1997-12-05 | 1998-11-21 | Device for axially shifting rolls |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0920925A3 (en) |
JP (1) | JPH11244918A (en) |
DE (1) | DE19753882A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2737962A1 (en) * | 2012-11-30 | 2014-06-04 | Siemens S.p.A. | Quick rotating shaft clamping |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3822081A (en) * | 1973-03-08 | 1974-07-02 | Morgan Construction Co | Axial roll adjustment means |
JPS54155960A (en) * | 1978-05-31 | 1979-12-08 | Nippon Steel Corp | Adjusting device for roll in axial direction |
EP0257383A2 (en) * | 1986-08-23 | 1988-03-02 | Sms Schloemann-Siemag Aktiengesellschaft | Device for axially adjusting rolls of roll stands for production of sectional steel |
EP0348711A2 (en) * | 1988-06-25 | 1990-01-03 | Sms Schloemann-Siemag Aktiengesellschaft | Device for axially shifting rolls in the stand of a rolling mill |
-
1997
- 1997-12-05 DE DE1997153882 patent/DE19753882A1/en not_active Withdrawn
-
1998
- 1998-11-21 EP EP98122106A patent/EP0920925A3/en not_active Withdrawn
- 1998-12-02 JP JP34334198A patent/JPH11244918A/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3822081A (en) * | 1973-03-08 | 1974-07-02 | Morgan Construction Co | Axial roll adjustment means |
JPS54155960A (en) * | 1978-05-31 | 1979-12-08 | Nippon Steel Corp | Adjusting device for roll in axial direction |
EP0257383A2 (en) * | 1986-08-23 | 1988-03-02 | Sms Schloemann-Siemag Aktiengesellschaft | Device for axially adjusting rolls of roll stands for production of sectional steel |
EP0348711A2 (en) * | 1988-06-25 | 1990-01-03 | Sms Schloemann-Siemag Aktiengesellschaft | Device for axially shifting rolls in the stand of a rolling mill |
Non-Patent Citations (2)
Title |
---|
MATVEEV B N: "PROGRESSIVE EQUIPMENT FOR PRODUCING COILED COLD-ROLLED STEEL" STEEL IN TRANSLATION, Bd. 25, Nr. 12, 1. Januar 1995 (1995-01-01), Seiten 42-47, XP000630469 ISSN: 0967-0912 * |
PATENT ABSTRACTS OF JAPAN vol. 004, no. 019 (C-073), 16. Februar 1980 (1980-02-16) -& JP 54 155960 A (NIPPON STEEL CORP), 8. Dezember 1979 (1979-12-08) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2737962A1 (en) * | 2012-11-30 | 2014-06-04 | Siemens S.p.A. | Quick rotating shaft clamping |
Also Published As
Publication number | Publication date |
---|---|
DE19753882A1 (en) | 1999-06-10 |
EP0920925A3 (en) | 1999-10-06 |
JPH11244918A (en) | 1999-09-14 |
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