EP1294499A1 - Walzgerüst, insbesondere duo-oder quattrowalzgerüst, umfassend biege- und ausbalanciervorrichtung für axial verschiebbare walzen - Google Patents
Walzgerüst, insbesondere duo-oder quattrowalzgerüst, umfassend biege- und ausbalanciervorrichtung für axial verschiebbare walzenInfo
- Publication number
- EP1294499A1 EP1294499A1 EP01953181A EP01953181A EP1294499A1 EP 1294499 A1 EP1294499 A1 EP 1294499A1 EP 01953181 A EP01953181 A EP 01953181A EP 01953181 A EP01953181 A EP 01953181A EP 1294499 A1 EP1294499 A1 EP 1294499A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- roll stand
- piston
- sleeve
- displacement
- 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
Links
- 238000005452 bending Methods 0.000 title claims abstract description 52
- 238000006073 displacement reaction Methods 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 description 12
- 238000005096 rolling process Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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
- B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
-
- 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
Definitions
- Roll stand in particular duo or four-roll stand, comprising bending and balancing devices for axially displaceable rolls
- the invention relates to a roll stand, in particular a duo or four-high rolling mill, comprising bending and balancing devices for axially displaceable rolls, a fixed guide block being attached in the height region of the roll chocks on both sides in the window of each roll stand and the force of bending cylinders on the in the axial direction and vertically displaceably guided roller chocks is transmitted.
- Such a bending device with a displacement system for work rolls has become known, for example, from EP 0 256 408 A2.
- the chocks receiving the bearings for the work rolls are arranged there via a sliding surface arranged in the middle height range on a guide shoulder of pressure transmission bodies arranged in pairs, which can be pressed apart in the vertical direction by two bending cylinders arranged between them.
- the guide blocks have lateral guide webs which are encompassed by the pressure transmission bodies.
- the respective lower pressure transmission bodies are additionally provided with a central guide leg to increase the guide length, which protrudes into the area of the respective upper pressure transmission body and engages in a guide groove of the guide block between the two guide webs.
- the upper pressure transmission bodies which form a receiving recess for the guide leg of the associated lower pressure transmission body, have, for further guidance, a guide bolt projecting against the lower pressure transmission body and projecting into a guide bushing of the lower pressure transmission body.
- the bending cylinders of this known device are arranged symmetrically to the guide pins so that the upper pressure transmission bodies form the cylinders, while the piston rods are supported in receiving recesses of the lower pressure transmission bodies. Since the bending cylinders are provided here between the mutually assigned pressure transmission bodies and are not supported on the guide block fixed to the stand, a bending stress caused by the bending action on the work rolls and thus the roll stands can be avoided.
- the guide blocks are profiled on the roller side for vertical guidance of a lower lifting housing and an upper lifting housing in the form of a U with angled legs. The lifting housings grip around the angled legs in a claw-like manner, the sliding guides being provided around the legs.
- the bending cylinders are, however, arranged outside the sliding surfaces, which leads to high moments in axial displacements and thus increased friction on the sliding surfaces.
- the adjustment range of the axial displacement is limited in this bending and displacement system and is approximately in the order of +/- 50 to 100 mm.
- the increased higher demands on the tolerance of the strip and the rolling of special materials require a larger axial adjustment range.
- An increase in the axial displacement would, however, further increase the moments in this known construction.
- the invention is therefore based on the object of providing a bending and balancing device with axial displacement of the rollers, which enables a larger axial adjustment range or displacement path without additional friction on the sliding surfaces and without increasing the moments to be applied.
- This object is achieved in that the bending cylinders at the upper and lower piston ends are each formed with a greater length than width and are arranged with their longer axis extending in the direction of the axial displacement of the rollers.
- a preferred embodiment of the invention provides that the sliding piston receiving sleeve and the piston sleeve are cylindrical in their interlocking central section and elliptical or oval at the ends.
- the sleeves slide into one another in the cylindrical middle section, while the end-side elliptical or oval sleeve formation is for the increased axial adjustment range provides increased contact area.
- the elliptical or oval shape can be easily manufactured in terms of production technology and can be sealed well against impurities, for example scale.
- Fig. 2 as a detail in longitudinal section of one of the bending devices
- FIG. 3 shows the bending device according to FIG. 2 cut along the line III-III;
- FIG. 4 shows the bending device according to FIG. 3 in a top view
- Fig. 5 cut the bending device according to Fig. 3 along the line V-V there.
- the work rolls 4 and 5 mounted in a window 1 of a roll stand 2 with their chocks 3 are shown in FIG. 1 of a duo or four-high rolling mill well known as such.
- the rolls 4 and 5 in the stand windows 1 of the mill stand are assigned both above and below with support rolls (not shown here), which are also mounted in chocks.
- the ends in the Rollers 4, 5 mounted opposite one another can be adjusted vertically in the window 1 of the two opposite roll stands 2, one of which is shown in FIG. 1, in order to influence the bending profile of the rolls 4, 5 via this vertical adjustment, in particular in connection with a normal axial displacement of the rollers 4, 5.
- the sleeves 10, 11 have cylindrical sections 10a, 11a on their mutually facing sides a middle section of the bending cylinder 8 forming area are concentrically inserted into one another, the upper sleeve 10a with its end cylindrical sleeve section 10a being immersed in the cylindrical sleeve section 11a of the piston sleeve 11.
- a displacement piston 12 is arranged in the upper sleeve 10 and is connected to the lower piston sleeve 11 via a pendulum support 13.
- the pendulum support 13 is spherical at the end and interacts with complementary thrust pieces 14 and 15 provided on the one hand in the displacement piston 12 and on the other hand in the piston sleeve 11.
- Pressure medium bores 16 lead from the side of the cover 9 to a start-up pressure chamber 17 formed in the cover 9, which - with the displacement of the displacement piston 12, as shown in FIG. 1 - into a pressure chamber 18 of the upper sleeve or displacement piston receiving sleeve 10 transforms.
- the chocks 3 of the work rolls 4 and 5 are supported by support lugs 20 and interposed sliding plates 21, which facilitate the displacement of the chocks 3 relative to the bending devices 7 or bending cylinders 8 during the axial adjustment of the rollers 4, 5 by means of the axial adjustment, not shown the covers 9 and on the other hand the end faces of the bottom of the piston sleeves 11.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10031884 | 2000-06-30 | ||
DE10031884 | 2000-06-30 | ||
DE10123794 | 2001-05-16 | ||
DE10123794A DE10123794A1 (de) | 2000-06-30 | 2001-05-16 | Walzgerüst, insbesondere Duo- oder Quartowalzgerüst, umfassend Biege- und Ausbalanciervorrichtung für axial verschiebbare Walzen |
PCT/EP2001/007372 WO2002002254A1 (de) | 2000-06-30 | 2001-06-28 | Walzgerüst, insbesondere duo- oder quartowalzgerüst, umfassend biege- und ausbalanciervorrichtungen für axial verschiebbare walzen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1294499A1 true EP1294499A1 (de) | 2003-03-26 |
EP1294499B1 EP1294499B1 (de) | 2005-04-06 |
Family
ID=26006240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01953181A Expired - Lifetime EP1294499B1 (de) | 2000-06-30 | 2001-06-28 | Walzgerüst, insbesondere duo-oder quattrowalzgerüst, umfassend biege- und ausbalanciervorrichtung für axial verschiebbare walzen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1294499B1 (de) |
TW (1) | TW501954B (de) |
WO (1) | WO2002002254A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021205548A1 (ja) | 2020-04-07 | 2021-10-14 | Primetals Technologies Japan 株式会社 | 圧延機、圧延機の製造方法、および圧延機の改造方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101733288B (zh) * | 2008-11-04 | 2011-09-28 | 上海重型机器厂有限公司 | 用于中厚板轧机的上下主传动轴的平衡装置 |
DE102009058876A1 (de) * | 2009-01-23 | 2010-07-29 | Sms Siemag Ag | Biege- und Ausbalanciervorrichtung für axial verschiebbare Arbeitswalzen eines Walzgerüstes |
CN102814338B (zh) * | 2012-09-07 | 2014-12-10 | 无锡市桥联冶金机械有限公司 | 轧机传动轴平衡装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3601239A1 (de) * | 1986-01-17 | 1987-07-23 | Schloemann Siemag Ag | Biegevorrichtung fuer die axial verschiebbaren arbeitswalzen eines vierwalzen-walzgeruestes |
DE3627690A1 (de) * | 1986-08-14 | 1988-02-25 | Schloemann Siemag Ag | Biege- und ausbalanciervorrichtung fuer axial verschiebbare arbeitswalzen eines quartowalzgeruestes |
DE3724557A1 (de) * | 1987-07-24 | 1989-02-02 | Schloemann Siemag Ag | Kolben-zylindereinheit fuer walzgerueste |
US4898014A (en) * | 1988-12-23 | 1990-02-06 | United Engineering, Inc. | Roll shifting system for rolling mills |
DE19922373A1 (de) * | 1999-05-14 | 2000-11-16 | Sms Demag Ag | Biegevorrichtung für die Arbeitswalzen eines Warmwalzgerüstes |
-
2001
- 2001-06-26 TW TW90115377A patent/TW501954B/zh not_active IP Right Cessation
- 2001-06-28 EP EP01953181A patent/EP1294499B1/de not_active Expired - Lifetime
- 2001-06-28 WO PCT/EP2001/007372 patent/WO2002002254A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO0202254A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021205548A1 (ja) | 2020-04-07 | 2021-10-14 | Primetals Technologies Japan 株式会社 | 圧延機、圧延機の製造方法、および圧延機の改造方法 |
EP4019156A4 (de) * | 2020-04-07 | 2022-08-31 | Primetals Technologies Japan, Ltd. | Walzwerk, verfahren zur herstellung eines walzwerks und verfahren zur änderung des walzwerks |
Also Published As
Publication number | Publication date |
---|---|
EP1294499B1 (de) | 2005-04-06 |
WO2002002254A1 (de) | 2002-01-10 |
TW501954B (en) | 2002-09-11 |
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