EP1100633A1 - Stütz- oder zwischenwalze in walzwerken zum walzen von flachem walzgut - Google Patents
Stütz- oder zwischenwalze in walzwerken zum walzen von flachem walzgutInfo
- Publication number
- EP1100633A1 EP1100633A1 EP99947207A EP99947207A EP1100633A1 EP 1100633 A1 EP1100633 A1 EP 1100633A1 EP 99947207 A EP99947207 A EP 99947207A EP 99947207 A EP99947207 A EP 99947207A EP 1100633 A1 EP1100633 A1 EP 1100633A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- support
- roll
- pistons
- annular
- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 27
- 239000012530 fluid Substances 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 2
- 239000010974 bronze Substances 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- 230000008093 supporting effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013000 roll bending Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/05—Sleeved rolls with deflectable sleeves
Definitions
- the invention relates to a support or intermediate roll in rolling mills for rolling flat rolling stock, in particular strip, consisting of a cylindrical roll core and a tubular jacket connected to it in a rotationally fixed manner and coaxially encompassing it, between which and the roll core hydraulically axially displaceable support bodies are arranged support the roll shell against the roll core.
- Profile-ground rollers are also disadvantageous because complex grinding processing is required to achieve the desired contours Geometry must be very precise.
- the rolling stock is deformed differently under certain conditions at the edge and in the middle; one roll with a defined contour is required for each roll stand, which is different for each stand.
- the object of the present invention is to provide an actuator for profile and flatness control which can be used, in particular, under rolling load and which avoids the disadvantages of the prior art and with which by changing the rolled bale profile within wide limits by improving a known jacket roller
- the support bodies on at least two symmetrically with respect to the center of the roll center, opposite the Roll core and the inside of the roll shell sealed ring piston, wherein the support body consist of a plurality of annular support bearings arranged on the outer circumference of the ring piston and spaced apart in the longitudinal direction of the roll, against the cylindrical outer surface of which the inner surface of the roll shell can be placed.
- the bale can be made thinner in the middle region.
- the proposed solution is suitable for being adjusted under load because of a
- Ring piston with the support bearings each moved into their axial end positions, where they can be fixed by fixed stops if necessary.
- the one end position in which the ring pistons are positioned in the area of the middle of the roll, results in the "hard” supported roll.
- the end position at which the ring pistons are positioned in the vicinity of the edge region of the roller results in the "soft” roller.
- the ring pistons are moved by means of pressure oil, which is introduced through the roller core via rotary connections.
- annular pistons are designed in the manner of telescopic pistons and in turn carry independently controllable axially displaceable annular pistons on which further spaced-apart annular support bearings are formed, the distances between the support bearings and the support bearings arranged on other annular pistons and their Position relative to the longitudinal extent of the roller can be changed by moving the ring piston.
- Band width of the roller jacket supported on the roller core over ten or twelve support bearings which are set so that the approximately equal distance between the support bearings in the middle between two supports is about 1 10 mm.
- a deflection of 2 mm in the center of the bale can be achieved with a load of 4,000 t.
- a support width of approximately 1350 mm is set between the support bearings.
- the deflection in the center of the roll of the roller at 4,000 l load is approximately 6 mm.
- volume regulators are used for the amount of oil supplied, which enable the ring piston to be moved to any intermediate position.
- At least four, preferably ten to twelve support bearings on at least two to four ring pistons are arranged symmetrically distributed over the length of the rollers, the distances between adjacent support bearings in the central region of the roller being smaller than that distances increasing towards the edge are selected.
- the smaller distances in the middle area of the roller due to the higher load thus increase towards the edge to larger amounts, which creates a harmonious
- Deflection curve for the roller can be achieved.
- the adjustment range can be used to a greater extent than was previously possible; because experience has shown that a large part is lost during the transition to the work roll and the rolling stock. You go rough Assume that about 1/3 of the crown arrives at the roller on the rolling stock.
- the value of approx. 1.3 mm that can be achieved with the invention is sufficient for most cases and, in conjunction with an effective roll bending, is a usable actuator, even in the case of converted roll stands.
- the ring pistons arranged symmetrically directly on both sides of the roller center can be moved against each other in their extended end positions. This means that the ring pistons adjacent in the area of the center of the roller are acted upon with hydraulic fluid until they reach their middle end position until they lie against each other in a self-centering manner.
- a double-conical support ring surface with a steeply conical roof cone in cross-section is arranged in the middle of the roll on the roll core and or on the inside of the roll shell, which correspond to correspondingly conically flattened end parts of the annular piston in their middle end position.
- the roller shell can be composed of a base part encompassing the ring pistons and an exchangeable wear part. It is both conceivable to attach an outer jacket to the base part by shrinking or to apply removable coatings to the roll jacket.
- the sliding surfaces in the bores are nitrided and the annular pistons are provided on the outside with bronze surfaces in order to improve the sliding properties and to minimize wear.
- 1 denotes a backup roller according to the invention, which consists of the roller core 2, the roller journals 4 mounted in the indicated cylindrical roller bearings 3 and the roller shell 5 which is connected to the roller core 2 in a rotationally fixed manner.
- the entrainment of the roll shell 5 with the roll core is ensured via the sleeve 6, which engages at 7 in a toothing of the roll neck indicated at 8.
- the support roller 1 in the example shown is provided with a two-part roller shell 5, which is composed of the base part 5a and the replaceable wear part 5b.
- the roller shell can of course also be in one piece.
- the ring pistons 9 claimed according to the invention and further ring pistons 10 arranged thereon are both axially displaceable independently of one another, the ring pistons being displaced in the upper half of the drawing in such a way that a "hard” back-up roll results, and in the lower position shown the ring pistons give a "soft" back-up roll.
- the annular pistons 9 slide with their bronzed surfaces on the nitrided surfaces of the jacket and roll core 2 and are sealed in a manner not shown both against the roll core and against the inner surface of the roll jacket.
- pressure medium in the present case lubricating oil
- the annular pistons 9 can be displaced on each side of the center of the roller, as a result of which the position of the support bearings, which are denoted overall by A to K, change leaves.
- the support roller shown in the exemplary embodiment has a total of 10 support bearings A to K, which are each formed by annular projections of the annular pistons 9 and 10 and have cylindrical outer surfaces which bear against the cylindrical inside of the roller shell 5.
- the support bearings E and F, which are directly adjacent to the central region of the support roller 1, are provided with a steep cone, which can be applied to a roof-shaped double cone 15, which is on the inner surface of the
- Roll shell 5 is formed.
- the conical end parts of the ring piston 9 rest against the double cone surfaces 15 and thus support the "hard” version of the support roller 1 by the middle region of the support roller 1 directly against the Roll core 2 is supported. They are in the lower half of the drawing
- Annular piston 9 retracted so far that the double cone 15 is free and the support roller 1 can thus "soft" deform.
Landscapes
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Metal Rolling (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Crushing And Grinding (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19835089 | 1998-07-24 | ||
DE19835089A DE19835089C2 (de) | 1998-07-24 | 1998-07-24 | Stütz- oder Zwischenwalze in Walzwerken zum Walzen von flachem Walzgut |
PCT/DE1999/002176 WO2000006315A1 (de) | 1998-07-24 | 1999-07-12 | Stütz- oder zwischenwalze in walzwerken zum walzen von flachem walzgut |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1100633A1 true EP1100633A1 (de) | 2001-05-23 |
EP1100633B1 EP1100633B1 (de) | 2002-12-11 |
Family
ID=7876352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99947207A Expired - Lifetime EP1100633B1 (de) | 1998-07-24 | 1999-07-12 | Stütz- oder zwischenwalze in walzwerken zum walzen von flachem walzgut |
Country Status (11)
Country | Link |
---|---|
US (1) | US6408668B1 (de) |
EP (1) | EP1100633B1 (de) |
JP (1) | JP4430823B2 (de) |
AT (1) | ATE229382T1 (de) |
AU (1) | AU6077399A (de) |
BR (1) | BR9912363A (de) |
CA (1) | CA2338495C (de) |
DE (2) | DE19835089C2 (de) |
ES (1) | ES2184503T3 (de) |
RU (1) | RU2220014C2 (de) |
WO (1) | WO2000006315A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6826941B2 (en) * | 2000-12-29 | 2004-12-07 | Ronald L. Plesh, Sr. | Roller apparatus with improved height adjustability |
US7637132B2 (en) * | 2006-02-06 | 2009-12-29 | Butech Bliss | Work roll scraper for roller levelers |
DE102007030408B4 (de) * | 2007-06-29 | 2019-05-29 | Kocks Technik Gmbh & Co. Kg | Vorrichtung für ein Walzgerüst zum Walzen von stab- oder rohrförmigem Gut mit einer Walzenaufnahme und einer Walze |
CN107866351A (zh) * | 2017-11-30 | 2018-04-03 | 深圳华美板材有限公司 | 一种涂覆辊 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4407151A (en) * | 1980-07-17 | 1983-10-04 | Davey-Loewy Limited | Rolling mill |
IT1163408B (it) * | 1983-05-27 | 1987-04-08 | Innocenti Santeustacchio Spa | Cilindro per gabbie di laminazione nastri, particolaremente quale cilindro di appoggio in gabbie quarto |
US4599770A (en) * | 1984-04-06 | 1986-07-15 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Roll for rolling mill |
DE3414242C1 (de) * | 1984-04-14 | 1985-11-07 | Ishikawajima-Harima Jukogyo K.K., Tokio/Tokyo | Walze für ein Walzgerüst |
JPS63220911A (ja) * | 1987-03-06 | 1988-09-14 | Hitachi Ltd | 圧延機 |
US5001820A (en) * | 1990-06-27 | 1991-03-26 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Roll for rolling mill |
JP2870185B2 (ja) * | 1990-11-15 | 1999-03-10 | 石川島播磨重工業株式会社 | 圧延機用ロール |
JPH04197505A (ja) * | 1990-11-28 | 1992-07-17 | Ishikawajima Harima Heavy Ind Co Ltd | ロール |
DE19511187A1 (de) * | 1995-03-27 | 1996-10-02 | Yuli Dipl Ing Liu | Verfahren und Vorrichtung zur lokalen Beeinflussung der Form des belasteten Walzspaltes in Bandwalzwerken |
-
1998
- 1998-07-24 DE DE19835089A patent/DE19835089C2/de not_active Expired - Fee Related
-
1999
- 1999-07-12 EP EP99947207A patent/EP1100633B1/de not_active Expired - Lifetime
- 1999-07-12 BR BR9912363-0A patent/BR9912363A/pt not_active IP Right Cessation
- 1999-07-12 US US09/744,339 patent/US6408668B1/en not_active Expired - Lifetime
- 1999-07-12 RU RU2001105201/02A patent/RU2220014C2/ru not_active IP Right Cessation
- 1999-07-12 AU AU60773/99A patent/AU6077399A/en not_active Abandoned
- 1999-07-12 AT AT99947207T patent/ATE229382T1/de active
- 1999-07-12 ES ES99947207T patent/ES2184503T3/es not_active Expired - Lifetime
- 1999-07-12 WO PCT/DE1999/002176 patent/WO2000006315A1/de active IP Right Grant
- 1999-07-12 CA CA002338495A patent/CA2338495C/en not_active Expired - Fee Related
- 1999-07-12 DE DE59903770T patent/DE59903770D1/de not_active Expired - Lifetime
- 1999-07-12 JP JP2000562156A patent/JP4430823B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0006315A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59903770D1 (de) | 2003-01-23 |
ES2184503T3 (es) | 2003-04-01 |
ATE229382T1 (de) | 2002-12-15 |
AU6077399A (en) | 2000-02-21 |
WO2000006315A1 (de) | 2000-02-10 |
BR9912363A (pt) | 2001-04-17 |
JP2002521205A (ja) | 2002-07-16 |
CA2338495A1 (en) | 2000-02-10 |
DE19835089A1 (de) | 2000-02-03 |
US6408668B1 (en) | 2002-06-25 |
DE19835089C2 (de) | 2000-08-24 |
EP1100633B1 (de) | 2002-12-11 |
CA2338495C (en) | 2008-04-29 |
RU2220014C2 (ru) | 2003-12-27 |
JP4430823B2 (ja) | 2010-03-10 |
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