WO1999011396A1 - Laminoir pour feuillards ou produits plats - Google Patents

Laminoir pour feuillards ou produits plats Download PDF

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Publication number
WO1999011396A1
WO1999011396A1 PCT/CN1997/000092 CN9700092W WO9911396A1 WO 1999011396 A1 WO1999011396 A1 WO 1999011396A1 CN 9700092 W CN9700092 W CN 9700092W WO 9911396 A1 WO9911396 A1 WO 9911396A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
rolling mill
mill according
support
rolling
Prior art date
Application number
PCT/CN1997/000092
Other languages
English (en)
Chinese (zh)
Inventor
Hongzhuan Zheng
Linzhen Zhao
Original Assignee
Hongzhuan Zheng
Linzhen Zhao
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hongzhuan Zheng, Linzhen Zhao filed Critical Hongzhuan Zheng
Priority to BR9714856A priority Critical patent/BR9714856A/pt
Priority to AU41103/97A priority patent/AU750839B2/en
Priority to DE29780450U priority patent/DE29780450U1/de
Priority to AT97938744T priority patent/ATE282485T1/de
Priority to KR10-2000-7002302A priority patent/KR100504356B1/ko
Priority to EP97938744A priority patent/EP1020237B1/fr
Priority to CA002302424A priority patent/CA2302424C/fr
Priority to DE69731671T priority patent/DE69731671T2/de
Priority to PCT/CN1997/000092 priority patent/WO1999011396A1/fr
Priority to RU2000107849/02A priority patent/RU2198750C2/ru
Publication of WO1999011396A1 publication Critical patent/WO1999011396A1/fr

Links

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
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • 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
    • 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
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
    • 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
    • B21B2013/025—Quarto, four-high stands
    • 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 present invention relates to a rolling mill for producing plate and strip, and in particular, to a ceremonial machine that supports the roll in the middle and controls the deflection of the roll, so that the rolled plate and strip have the characteristics of high lateral thickness accuracy.
  • the present invention aims to solve the problem of roll deflection in the prior art described above, and its purpose is to propose a high-precision rolling mill for rolling plate and strip.
  • the deflection of the roll is greatly reduced, thereby rolling.
  • the dimensional accuracy of the piece is greatly improved.
  • the object of the present invention is achieved by providing a rolling mill for rolling plate and strip, including: a stand, upper and lower beams, a reduction device, a roll holder, an upper roll system and a lower roll system, wherein the upper and lower Transverse beams are installed at the upper and lower ends of the frame, respectively, and the reduction device is installed on the frame and is located at both ends of the beam and can move at least one of the upper and lower beams to adjust the roll gap,
  • An upper and lower roll system and at least one roll base are provided between the upper and lower beams, a support pad is provided between the roll base and the cross beam, a bearing is provided between the roll system and the roll base, and, The support pad and the bearing are located in the middle of the roller system and within the range of the roller length.
  • a rolling mill for rolling plate and strip including: a stand, upper and lower beams, a reduction device, a roll, an upper roll system and a lower roll system, wherein the above And lower beams are fixedly installed at the upper and lower ends of the frame, respectively.
  • At least one roll base and upper and lower roll systems are arranged between the upper and lower beams, and at least one of the upper and lower beams is provided in the middle portion.
  • the reduction device which can move the roll holder in contact with it to adjust the roll gap, and a bearing is provided between the roll holder and the upper and lower roll systems, and the bearing is located at the middle of the roll system , And within the range of roll length.
  • a bearing is provided between the roll holder and the upper and lower roll systems, and the bearing is located at the middle of the roll system , And within the range of roll length.
  • the central support device makes the rolling mill greatly reduce the flexural deformation caused by the rolling force. Therefore, the cross-section thickness error of the rolled product is reduced, and the dimensional accuracy is greatly improved.
  • FIG. 1 is a schematic front view of a rolling mill according to a first embodiment of the present invention
  • FIG. 2 is a schematic side view of a rolling mill according to a first embodiment of the present invention
  • FIG. 3 is a schematic front view of a rolling mill according to a second embodiment of the present invention.
  • FIG. 4 is a schematic side view of a rolling mill according to a second embodiment of the present invention.
  • FIG. 5 is a schematic front view of a rolling mill according to a third embodiment of the present invention.
  • FIG. 6 is a schematic side view of a rolling mill according to a third embodiment of the present invention.
  • FIG. 7 is a schematic front view of a rolling mill according to a fourth embodiment of the present invention.
  • FIG. 8 is a schematic side view of a rolling mill according to a fourth embodiment of the present invention.
  • FIG. 9 is a schematic front view of a four-high rolling mill in the prior art.
  • Fig. 9 and Fig. 10 are schematic diagrams of a commonly used four-high rolling mill. Both ends of the rolls (work rolls or support rolls) of this type of rolling mill are supported on the stand of the rolling mill, that is, they undergo huge rolling at the roll diameter. Stress. During the rolling process, due to the rolling pressure, the rolls will inevitably be deformed, which will cause the thickness of the rolled plate to be uneven in the width direction, and the thickness accuracy of the plate will not meet the requirements, which will greatly affect the rolling. The quality of the pieces.
  • Figures 1 and 2 show a centrally supported rolling mill according to a first embodiment of the present invention.
  • the rolling mill has a frame 4 which consists of two pieces of left and right.
  • Upper and lower beams 8 and 8 ' are respectively installed near the upper and lower ends of the frame 4, and work rolls 12, 12', and bearings 14, 14 'are installed in the window of the frame between the upper and lower beams.
  • Roller seats 16, 16 'and middle support pads 18, 18' Located between the two work rolls 12, 12 ′ is the rolling stock 2. It can be seen from the figure that the roll body of the upper work roll 12 is supported on the upper roll base 16 by an upper bearing 14, which is an arc-shaped or semi-circular sliding bearing.
  • a support pad 18 is installed between the upper roll base 16 and the upper cross beam 8.
  • Both the support pad and the sliding bearing should be located in the middle area along the axis of the work roll body, that is, it should not be located at the journal portions at both ends of the work roll, and within the length of the work roll body.
  • the support pad may be one or more pieces. In the illustrated embodiment, the support pad is two pieces arranged symmetrically.
  • a pressing device 6 is provided on the frame 4 at both ends of the upper beam 8. The pressing device 6 is in contact with both ends of the upper cross beam 8 to bear the rolling force, and the up and down movement of the pressing device 6 can move the upper cross beam 8 up and down in the window of the frame 4 in order to adjust the roll gap.
  • the pressing device 6 is a screw device, but obviously it can also be replaced by a hydraulic cylinder.
  • the roll body of the lower work roll 12 ' is supported on the lower roll base 16' by a lower bearing 14 ', which is also an arc or semicircular sliding bearing.
  • a support pad 18 ' is installed between the lower roll base 16' and the lower cross beam 8 '.
  • the support pads and sliding bearings should be located in the middle area along the axis of the work roll body and within the length of the work roll body. Both ends of the lower beam 8 ′ are supported by the frame 4.
  • the adjustment of the rolling line can be achieved by selecting the middle support pads 18 'of different thickness specifications.
  • a hydraulic device or a screw device may also be used in place of the central support pad 18 'to achieve adjustment of the rolling line.
  • the adjustment of the rolling line can also be achieved by providing a spacer or a hydraulic device or a screw device between the lower cross beam 8 'and the frame 4.
  • the deflection of the roll is significantly reduced.
  • the rolling mill of the present invention structurally forms a support system located near the middle of the axis of the work roll body and within the length of the roll body, so it ensures that The correct shape of the work roll busbar, that is, the straightness of the busbar, so that the bending deformation of the work roll basically does not change with the change of the rolling force, so that its bending deformation is greatly reduced, and the final effect makes the rolling
  • the thickness error of the sheet metal strip is reduced.
  • the rolling mill can be turned upside down, and the same effect can be obtained even if the pressing device is turned upward.
  • the rolling mill according to the second embodiment of the present invention shown in Figs. 3 and 4 is an example in which the present invention is applied to a four-high rolling mill.
  • the rolling mill has a stand 4, a pressing device 6 and upper and lower cross beams 8 and 8 ′.
  • Work rolls 22 and 22 ′, support rolls 23 and 23 ′ and bearings 24 are installed in the window of the stand between the upper and lower cross beams. 24 ', roll holders 26, 26' and middle support pads 28, 28 '.
  • This embodiment differs from the first embodiment only in that a backup roller is provided between the work stick and the roll base, and other structures and principles are the same as those of the first embodiment. If an intermediate suction roll is added between the work roll and the support roll, that is, an example in which the present invention is applied to an HC rolling mill, the effect will be better.
  • Figs. 5 and 6 show a third embodiment of the present invention.
  • the rolling mill has a stand 4, a pressing device 6, and lower and lower cross beams 8, 8 '.
  • Working bars 32, 32' are installed in the window of the stand between the upper and lower cross beams, and two support rollers are provided on the upper and lower sides.
  • This embodiment is not limited to the six-roll tower-type rolling mill shown in the figure, and is also applicable to tower-type rolling mills having other bars or structures.
  • the bearing used may be the same plain bearing as the first embodiment, or the support roller itself may be made into a backing bearing without using such a plain bearing, that is, Rolling bearing consisting of inner ring and outer ring.
  • the rolling mill has a frame 4, a pressing device 6, and upper and lower beams 8, 8 ', and the upper and lower work rolls 42, 42', and bearings 44, 44 are installed in the frame window between the upper and lower beams.
  • this embodiment fixedly installs the upper beam 8 of the rolling mill and the frame 4, and moves the pressing device 6 from the frames 4 corresponding to the two ends of the upper beam to the upper beam.
  • the middle region of the cross beam along the axis direction of the work roll body eliminates the upper support pad, so that the pressing device 6 directly contacts the upper roll holder 46.
  • the pressing device of the first embodiment is pressed at both ends of the beam to be pressed at the middle, that is, it functions as a pressing device and an upper support pad at the same time.
  • the roller system and the rolling stick base in the second and third embodiments can also be applied to this embodiment, and the description will not be repeated here.
  • the upper and lower transverse beams 8, 8 'and the frame 4 can be spliced, welded or casted together, which also has the same effect.
  • the second, third, and fourth embodiments can all turn the rolling mill upside down, and have the same effect.
  • the screws in the second, third, and fourth embodiments can also be replaced by hydraulic cylinders,
  • the rolling mill of the present invention has the following advantages: ''
  • a middle support system is formed for the work roll within the range of the work roll roll length, thereby ensuring the shape of the work roll busbar and making the work.
  • the deflection of the roll is basically not changed with the fluctuation of the rolling force, so that the thickness error of the plate and strip is reduced.
  • the rolling mill of the present invention can greatly simplify the design of the original roll shape and the control of the roll shape during rolling. Because the bending deformation of the work roll of the invention does not substantially change with the fluctuation of the rolling force, Factors such as roll deflection, flattening deformation, thermal expansion, and abrasion can ignore the most important factor of deflection, while thermal expansion and abrasion are factors that change slowly. The control of the roll shape during rolling is greatly simplified. In addition, because the "hole shape" formed by the bending deformation of the two work rolls in the prior art is avoided, it is beneficial to the reasonable lateral flow of the metal, which is beneficial to the use of wedge-shaped blanks.
  • the upper and lower roll holder assemblies (including the roll holder and the roll system) in the first, second, third, and fourth embodiments of the present invention may be arranged in a crossover relationship with each other, or with the roll holder assembly or the roll system in the prior art.
  • the cross configuration can also achieve the aforementioned object of the present invention.
  • the rolling mill of the present invention is also particularly suitable for retrofitting existing two-high rolling mills, four-high rolling mills, HC rolling mills, etc., and the original rolling mill roll system can be replaced.
  • the present invention is not limited to being applied to a cold rolling mill, but can also be applied to a rolling mill for producing hot-rolled steel strip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

L'invention concerne un laminoir pour feuillards ou produits plats, comportant les montants de la cage du laminoir, des traverses supérieure et inférieure, des moyens de serrage, des groupes de cylindres supérieurs et inférieurs, ainsi que des empoises. La traverse supérieure/inférieure est montée respectivement sur la face supérieure/inférieure des montants, sur lesquels sont fixés les moyens de serrage, et ces derniers sont situés sur les parties terminales de la traverse supérieure afin de permettre le déplacement de celle-ci en vue du réglage de l'écartement entre cylindres. Les empoises ainsi que les groupes de cylindres supérieurs et inférieurs sont disposés entre les traverses supérieure et inférieure. Des blocs de support sont placés entre les empoises et les traverses, et les coussinets sont disposés entre les groupes de cylindres supérieurs/inférieurs et les empoises. Les coussinets ainsi que les blocs de support sont positionnés au niveau de la partie centrale des cylindres et dans la région des corps des cylindres.
PCT/CN1997/000092 1997-09-04 1997-09-04 Laminoir pour feuillards ou produits plats WO1999011396A1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
BR9714856A BR9714856A (pt) 1997-09-04 1997-09-04 Laminador para laminar placa ou tira
AU41103/97A AU750839B2 (en) 1997-09-04 1997-09-04 A mill for rolling strips or plates
DE29780450U DE29780450U1 (de) 1997-09-04 1997-09-04 Walzwerk zum Walzen einer Platte oder eines Bandes
AT97938744T ATE282485T1 (de) 1997-09-04 1997-09-04 Walzwerk zum walzen von bändern oder blechen
KR10-2000-7002302A KR100504356B1 (ko) 1997-09-04 1997-09-04 판 또는 스트립 압연용 압연기
EP97938744A EP1020237B1 (fr) 1997-09-04 1997-09-04 Laminoir pour feuillards ou produits plats
CA002302424A CA2302424C (fr) 1997-09-04 1997-09-04 Laminoir pour feuillards ou produits plats
DE69731671T DE69731671T2 (de) 1997-09-04 1997-09-04 Walzwerk zum walzen von bändern oder blechen
PCT/CN1997/000092 WO1999011396A1 (fr) 1997-09-04 1997-09-04 Laminoir pour feuillards ou produits plats
RU2000107849/02A RU2198750C2 (ru) 1997-09-04 1997-09-04 Прокатный стан для листового или полосового проката

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN1997/000092 WO1999011396A1 (fr) 1997-09-04 1997-09-04 Laminoir pour feuillards ou produits plats

Publications (1)

Publication Number Publication Date
WO1999011396A1 true WO1999011396A1 (fr) 1999-03-11

Family

ID=4574984

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN1997/000092 WO1999011396A1 (fr) 1997-09-04 1997-09-04 Laminoir pour feuillards ou produits plats

Country Status (8)

Country Link
EP (1) EP1020237B1 (fr)
KR (1) KR100504356B1 (fr)
AT (1) ATE282485T1 (fr)
AU (1) AU750839B2 (fr)
CA (1) CA2302424C (fr)
DE (2) DE29780450U1 (fr)
RU (1) RU2198750C2 (fr)
WO (1) WO1999011396A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100393435C (zh) * 2006-07-14 2008-06-11 武汉科技大学 一种用于轧机的辊型稳定垫块
CN109277411A (zh) * 2018-11-13 2019-01-29 郑红专 一种具有分体式机架的轧机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB379584A (en) * 1930-12-20 1932-09-01 Witkowitzer Bergb Gewerkschaft Improvements in and relating to rolling mills
US1910148A (en) * 1928-03-28 1933-05-23 Timken Roller Bearing Co Rolling mill
US2181173A (en) * 1936-09-11 1939-11-28 Catulle Gene Backed roll mill
US2279350A (en) * 1940-04-27 1942-04-14 Simons Aaron Method and apparatus for drawing metal
US3762202A (en) * 1971-10-18 1973-10-02 W Sherwood Rolling mill for flat-rolled products
CN2084397U (zh) * 1990-10-16 1991-09-11 青岛建筑工程学院 轧辊整体静压支承整体压下冷轧机机座

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248073A (en) * 1979-01-26 1981-02-03 T. Sendzimir, Inc. Cluster type cold rolling mill
JPH06102206B2 (ja) * 1986-09-01 1994-12-14 株式会社日立製作所 作業ロ−ルの撓み防止装置を有する圧延機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1910148A (en) * 1928-03-28 1933-05-23 Timken Roller Bearing Co Rolling mill
GB379584A (en) * 1930-12-20 1932-09-01 Witkowitzer Bergb Gewerkschaft Improvements in and relating to rolling mills
US2181173A (en) * 1936-09-11 1939-11-28 Catulle Gene Backed roll mill
US2279350A (en) * 1940-04-27 1942-04-14 Simons Aaron Method and apparatus for drawing metal
US3762202A (en) * 1971-10-18 1973-10-02 W Sherwood Rolling mill for flat-rolled products
CN2084397U (zh) * 1990-10-16 1991-09-11 青岛建筑工程学院 轧辊整体静压支承整体压下冷轧机机座

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100393435C (zh) * 2006-07-14 2008-06-11 武汉科技大学 一种用于轧机的辊型稳定垫块
CN109277411A (zh) * 2018-11-13 2019-01-29 郑红专 一种具有分体式机架的轧机

Also Published As

Publication number Publication date
CA2302424A1 (fr) 1999-03-11
AU4110397A (en) 1999-03-22
EP1020237B1 (fr) 2004-11-17
DE69731671D1 (de) 2004-12-23
EP1020237A4 (fr) 2003-04-16
KR20010023650A (ko) 2001-03-26
KR100504356B1 (ko) 2005-07-28
CA2302424C (fr) 2006-11-14
AU750839B2 (en) 2002-08-01
RU2198750C2 (ru) 2003-02-20
ATE282485T1 (de) 2004-12-15
DE29780450U1 (de) 2000-05-04
DE69731671T2 (de) 2005-12-01
EP1020237A1 (fr) 2000-07-19

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