EP2012943A1 - Bending device for two working rolls of a rolling stand - Google Patents
Bending device for two working rolls of a rolling standInfo
- Publication number
- EP2012943A1 EP2012943A1 EP07723869A EP07723869A EP2012943A1 EP 2012943 A1 EP2012943 A1 EP 2012943A1 EP 07723869 A EP07723869 A EP 07723869A EP 07723869 A EP07723869 A EP 07723869A EP 2012943 A1 EP2012943 A1 EP 2012943A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wear plate
- pressure
- guide block
- bending device
- self
- 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
Classifications
-
- 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
- B21B2269/00—Roll bending or shifting
- B21B2269/02—Roll bending; vertical bending of rolls
- B21B2269/04—Work roll bending
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2269/00—Roll bending or shifting
- B21B2269/12—Axial shifting the rolls
- B21B2269/14—Work 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
- B21B31/18—Adjusting or positioning rolls by moving rolls axially
Definitions
- the work rolls receiving chocks are each supported via a sliding surface arranged in the middle height range on a guide shoulder of pairwise arranged pressure transmission bodies.
- the pressure transfer bodies With a bending cylinder acting between the pressure transfer bodies arranged in pairs, the pressure transfer bodies are vertically displaceable relative to one another.
- guide blocks form lateral guide webs, which are encompassed by the pressure transmission bodies.
- Guide blocks and guide webs are fully occupied in the support areas with wear plates that form sliding surfaces.
- the invention is therefore based on the object, a bending device for the work rolls of a rolling mill of the type described above in such a way that transversely to the plane of movement of the pressure transmission body acting reaction forces due to tilting of the pressure transmission body can be derived free of edge pressure in the guide block.
- the preferred embodiment of the wear plate is equipped with a cylindrical support surface.
- This cylindrical support surface which forms a circular arc in a cross section, is assigned a radius center on a longitudinal axis of the wear plate.
- the storage, and if necessary an additional attachment of the wear plate is carried out on a likewise cylindrically shaped mating support surface on the guide block.
- the radius centers of the cylindrical support surface of the wear plate and the cylindrical counter support surface of the guide block are preferably both on a common longitudinal axis, whereby a (small) rotational movement about this longitudinal axis is made possible.
- This longitudinal axis is preferably outside of the wear plate.
- the longitudinal axis is aligned normal to the axes of rotation of the work rolls. The rotational movement is on the order of about 1/10 °.
- Fig. 1 shows a first embodiment of a bending device according to the invention (L block) fragmentary in a parallel to the work rolls section through the
- FIG. 2 shows this bending device in a section along the line H-II of FIG. 1
- FIG. 3 shows a self-adjusting wear plate in an enlarged view
- FIG. 4a shows a plan view of the flat sliding surface of a wear plate according to the invention with a possible arrangement of lubricant channels
- rotatable about driven axes 1 driven rollers 1 of a rolling mill are mounted end in chocks 2, which can be adjusted vertically in the window of the lateral roll stand 3, on the one hand to adjust a predetermined strip thickness and on the other to influence over the vertical adjustment of the bending curve of the work rolls 1, in particular in connection with an axial displacement of the work rolls against the support rollers, not shown here.
- the influencing of the bending curve of the work rolls 1 takes place with the aid of a bending device, which consists essentially of paired pressure transfer bodies 4a, 4b, between which bending cylinders 5 are arranged.
- the pairs arranged on both sides of the chocks 2 Pressure transfer body 4a, 4b are vertically slidably mounted in a respective guide block 6 in itself in their vertical orientation self-adjusting wear plates 7 or on vertical guides 7a.
- the guide blocks 6 are fastened laterally in windows of the roll stand 3 and form two parallel vertical guides 7a for the pressure-transmitting bodies 4a, 4b, which have an L-shape with a longer vertical leg 8 and a shorter horizontal leg 9 ,
- the arrangement is made such that the legs 8 and 9 of the pressure transmission body 4a and 4b are opposite each other in pairs, as can be seen in Figure 1.
- a self-adjusting wear plate 7 is arranged along the long vertical leg 8 of the pressure transmission body 4a and 4b.
- Fig. 3 shows the self-adjusting wear plate 7, which bears flat with a flat sliding surface 17 on a vertical guide surface 18 of the pressure transmitting body 4a and is pivotally supported by a cylindrical shaped support surface 19 on a mating support surface 20 of the guide block 6 about a radius center 21.
- the sliding surface 17 of the self-adjusting wear plate 7 is square or rectangular and the support surface 19 is formed by a portion of a circular cylindrical surface.
- FIG. 3 also permits a further geometric embodiment of the self-adjusting wear plate in the selected representation.
- the wear plate 7 is provided with a spherical support surface 19, which is part of a spherical surface which is pivotally supported on a likewise spherically shaped mating support surface 20 of the guide block 6 by a radius center in two normal directions and thus ensures the flat concerns the sliding surface of the wear plate spatially.
- the flat sliding surface 17 of the self-adjusting wear plate is preferably circular in this case.
- FIGS 4a to 4d show further advantageous structural configurations of the wear plate, especially for their intensive lubrication.
- Lubricant supply lines 25 are, as shown in Figures 1 and 2, incorporated in the guide block 6 in the form of holes and open, starting from a central lubricant supply unit, not shown, or easily accessible grease nipple in the mating support surfaces 20 of the guide blocks 6.
- Ox Schmierstoff- Supply lines 25 then pass through the wear plate 7 and connect the cylindrical support surface 19 with the flat sliding surface 17.
- the invention is not limited to the illustrated embodiments.
- the self-adjusting wear plates with the sliding surface abut a vertical guide surface of the guide block and be supported with the cylindrical or spherical shaped support surface in a mating support surface on the pressure transmitting body.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07723869T PL2012943T3 (en) | 2006-04-21 | 2007-04-02 | Bending device for two working rolls of a rolling stand |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0068206A AT504208B1 (en) | 2006-04-21 | 2006-04-21 | BENDING DEVICE FOR TWO WORKING ROLLERS OF A ROLLING MILL |
PCT/EP2007/002928 WO2007121832A1 (en) | 2006-04-21 | 2007-04-02 | Bending device for two working rolls of a rolling stand |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2012943A1 true EP2012943A1 (en) | 2009-01-14 |
EP2012943B1 EP2012943B1 (en) | 2010-11-24 |
Family
ID=38110750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07723869A Not-in-force EP2012943B1 (en) | 2006-04-21 | 2007-04-02 | Bending device for two working rolls of a rolling stand |
Country Status (11)
Country | Link |
---|---|
US (1) | US8196444B2 (en) |
EP (1) | EP2012943B1 (en) |
KR (1) | KR101379882B1 (en) |
CN (1) | CN101426595B (en) |
AT (2) | AT504208B1 (en) |
BR (1) | BRPI0710462A2 (en) |
DE (1) | DE502007005761D1 (en) |
PL (1) | PL2012943T3 (en) |
RU (1) | RU2417129C2 (en) |
UA (1) | UA96443C2 (en) |
WO (1) | WO2007121832A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1772203A1 (en) | 2005-10-10 | 2007-04-11 | VAI Industries (UK) Limited | Roll bending device |
DE102008015826A1 (en) * | 2008-03-27 | 2009-10-01 | Sms Siemag Aktiengesellschaft | rolling mill |
DE102009058876A1 (en) * | 2009-01-23 | 2010-07-29 | Sms Siemag Ag | Bending and balancing device for axially displaceable work rolls of a roll stand |
ITMI20101502A1 (en) * | 2010-08-05 | 2012-02-06 | Danieli Off Mecc | INTEGRATED BENDING AND SHIFTING SYSTEM UNDER LOAD FOR CAGES WITH HIGH OPENING BETWEEN THE WORKING ROLLERS |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1031544A1 (en) | 1981-11-11 | 1983-07-30 | Колпинское отделение Всесоюзного научно-исследовательского и проектно-конструкторского института металлургического машиностроения | Prestressed rolling stand |
DE3769809D1 (en) | 1986-01-17 | 1991-06-13 | Schloemann Siemag Ag | STANDING BENDING DEVICE FOR AXIAL SLIDING ROLLS OF A MULTI-ROLLING DEVICE. |
DE3601669A1 (en) * | 1986-01-21 | 1987-07-23 | Linde Ag | METHOD FOR BIOLOGICAL WASTE WATER TREATMENT |
DE3627690A1 (en) | 1986-08-14 | 1988-02-25 | Schloemann Siemag Ag | BENDING AND BALANCING DEVICE FOR AXIAL SLIDING WORK ROLLS OF A QUARTO ROLLING DEVICE |
FR2611541B1 (en) | 1987-02-27 | 1994-04-29 | Clecim Sa | DEVICE FOR ADJUSTING THE PROFILE AND DISTRIBUTION OF WEAR OF CYLINDERS IN A ROLLER WITH AXIALLY MOVABLE CYLINDERS |
SU1637892A1 (en) | 1987-11-24 | 1991-03-30 | Центральный научно-исследовательский институт черной металлургии им.И.П.Бардина | Prestressed rolling stand |
JPH0811241B2 (en) | 1987-11-26 | 1996-02-07 | 株式会社日立製作所 | Work roll shift rolling machine |
DE4034436A1 (en) | 1990-10-29 | 1992-04-30 | Schloemann Siemag Ag | ROLLING DEVICE WITH ARRANGEMENT FOR DISTANTLY SUPPORTING THE UPPER WORKING ROLLER |
US5329849A (en) * | 1993-06-11 | 1994-07-19 | Beloit Technologies, Inc. | Self-loading controlled crown roll |
DE19536042A1 (en) * | 1995-09-28 | 1997-04-03 | Schloemann Siemag Ag | Guide device for four or multi-roll stands |
DE19807785C1 (en) | 1998-02-18 | 1999-03-04 | Mannesmann Ag | Bending apparatus for roll stands |
AT407124B (en) | 1998-10-19 | 2000-12-27 | Voest Alpine Ind Anlagen | BENDING DEVICE FOR TWO WORK ROLLS OF A ROLLING STAND |
DE19922373A1 (en) * | 1999-05-14 | 2000-11-16 | Sms Demag Ag | Ingots used in hot rolling have a double acting hydraulic piston cylinder unit with both ends connected to guide pieces |
US6073474A (en) * | 1999-06-24 | 2000-06-13 | Danieli United, A Divison Of Danieli Corporation | "C" block roll bending |
DE10123794A1 (en) * | 2000-06-30 | 2002-01-17 | Sms Demag Ag | Roll stand, in particular duo or four-roll stand, comprising bending and balancing device for axially displaceable rolls |
DE10334682A1 (en) | 2003-07-30 | 2005-02-17 | Sms Demag Ag | rolling device |
-
2006
- 2006-04-21 AT AT0068206A patent/AT504208B1/en not_active IP Right Cessation
-
2007
- 2007-04-02 RU RU2008145856/02A patent/RU2417129C2/en not_active IP Right Cessation
- 2007-04-02 DE DE502007005761T patent/DE502007005761D1/en active Active
- 2007-04-02 KR KR1020087028402A patent/KR101379882B1/en not_active IP Right Cessation
- 2007-04-02 PL PL07723869T patent/PL2012943T3/en unknown
- 2007-04-02 BR BRPI0710462-6A patent/BRPI0710462A2/en not_active IP Right Cessation
- 2007-04-02 EP EP07723869A patent/EP2012943B1/en not_active Not-in-force
- 2007-04-02 CN CN2007800144010A patent/CN101426595B/en not_active Expired - Fee Related
- 2007-04-02 UA UAA200813195A patent/UA96443C2/en unknown
- 2007-04-02 WO PCT/EP2007/002928 patent/WO2007121832A1/en active Application Filing
- 2007-04-02 AT AT07723869T patent/ATE489179T1/en active
- 2007-04-02 US US12/297,678 patent/US8196444B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2007121832A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101426595A (en) | 2009-05-06 |
UA96443C2 (en) | 2011-11-10 |
EP2012943B1 (en) | 2010-11-24 |
PL2012943T3 (en) | 2011-05-31 |
DE502007005761D1 (en) | 2011-01-05 |
KR101379882B1 (en) | 2014-03-28 |
AT504208A4 (en) | 2008-04-15 |
AT504208B1 (en) | 2008-04-15 |
ATE489179T1 (en) | 2010-12-15 |
RU2008145856A (en) | 2010-05-27 |
CN101426595B (en) | 2012-07-11 |
RU2417129C2 (en) | 2011-04-27 |
KR20080108364A (en) | 2008-12-12 |
US20090100891A1 (en) | 2009-04-23 |
BRPI0710462A2 (en) | 2011-08-16 |
WO2007121832A1 (en) | 2007-11-01 |
US8196444B2 (en) | 2012-06-12 |
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