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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)
French (fr)
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 PCT/CN1997/000092 priority Critical patent/WO1999011396A1/zh
Priority to EP97938744A priority patent/EP1020237B1/en
Priority to DE29780450U priority patent/DE29780450U1/de
Priority to DE69731671T priority patent/DE69731671T2/de
Priority to AT97938744T priority patent/ATE282485T1/de
Priority to KR10-2000-7002302A priority patent/KR100504356B1/ko
Priority to CA002302424A priority patent/CA2302424C/en
Priority to AU41103/97A priority patent/AU750839B2/en
Priority to BR9714856A priority patent/BR9714856A/pt
Priority to RU2000107849/02A priority patent/RU2198750C2/ru
Publication of WO1999011396A1 publication Critical patent/WO1999011396A1/zh

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14Metal-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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14Metal-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
    • B21B13/147Cluster 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025Quarto, four-high stands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B31/00Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/07Adaptation 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)

Description

轧制板带材的轧机 技术领域
本发明涉及一种用于生产板带材的轧机, 尤其是涉及一种对轧辊进行中 部支撑而控制轧辊挠度的礼机, 从而使轧制的板带材具有很高的横向厚度精 度的特性。 背景技术
轧制板带材的轧机种类较多, 目前常用的有二辊, 四辊轧机以及 HC轧 机等。 这些轧机存在的最主要缺点是当轧件通过机座时, 由于轧辊的辊颈处 承受巨大的轧制力, 因此使轧辊产生较大的挠曲变形, 轧辊的变形势必造成 轧件 (轧制的板带材)的横向厚度偏差, 因而严重影响轧件的质量。 为解决上 述问题不得不采取增大轧辊直径的方法; 对于四辊轧机和 HC轧机不得不采 取增大支撑棍直径的方法。 但是, 随着轧辊直径的加大, 必然导致轧制力的 轧件产生较大的横向厚度偏差。 发明目的
因此, 本发明旨在解决上述的现有技术中存在的轧辊挠曲变形问题, 其 目的在于提出一种高精度的轧制板带材的轧机, 其轧辊的挠曲变形大大减 小, 从而轧件的尺寸精度大大提高。 技术解决方案
本发明的目的是这样实现的, 即提供一种轧制板带材的轧机, 包括: 机 架、 上下横梁、 压下装置, 轧辊座, 上辊系和下辊系, 其中, 所述的上下横 梁分别安装在机架的上端和下端处, 所述的压下装置安装在机架上且位于横 梁的两端处并可使所述的上、 下横梁中的至少一个移动以调节辊缝, 在上、 下横梁之间设置有上、 下辊系和至少一个轧辊座, 在轧辊座与横梁之间设有 支撑垫块, 在所述的辊系与轧辊座之间设有轴承, 并且, 所述的支撑垫块和 所述的轴承位于所述辊系的中间部位, 且在辊长范围之内。
最好是, 在轧辊座与辊系之间设置有弧形的滑动轴承。 根据本发明的另一方面, 提供了一种轧制板带材的轧机, 包括: 机架, 上、 下横梁, 压下装置, 轧辊, 上辊系和下辊系, 其中, 所述的上、 下横梁 分别固定安装在机架的上端和下端处, 在上、 下横梁之间设置有至少一个轧 辊座和上、 下辊系, 所述的上、 下横梁中的至少一个的中间部位设置有所述 的压下装置, 该压下装置可使与其接触的轧辊座移动以调节辊缝, 在轧辊座 与上、 下辊系之间设有轴承, 所述的轴承位于辊系的中间部位, 且在辊长范 围之内。 在本发明中, 由于将现有技术中的轧辊两端辊颈处的支撑改为在轧辊的 中部支撑, 即通过安排在工作辊辊身轴线中部区域的轴承、 支撑垫块或压下 装置等中部支撑装置, 使得轧机在承受轧制力后, 轧辊产生的挠曲变形大大 减小。 因此减小了轧件的横断面厚度误差, 尺寸精度大为提高。 附图的简要说明
下面结合附图对本发明的实施例进行详细描述, 附图中:
图 1是本发明第一实施例轧机的正视示意图;
图 2是本发明第一实施例轧机的侧视示意图;
图 3是本发明第二实施例轧机的正视示意图;
图 4是本发明第二实施例轧机的侧视示意图;
图 5是本发明第三实施例轧机的正视示意图;
图 6是本发明第三实施例轧机的侧视示意图;
图 7是本发明第四实施例轧机的正视示意图;
图 8是本发明第四实施例轧机的侧视示意图;
图 9是现有技术中四辊轧机的正视示意图;
图 10是现有技术中四辊轧机的侧视示意图; 实现本发明的最佳方式
以下将详细说明本发明, 在上述示意图中, 所有轧机的工作辊的定位方 式均未示出, 并且, 在各附图中, 相同或类似的部件采用相同的标号。
图 9和图 10为目前常用的四辊轧机示意图。 这种轧机的轧辊 (工作辊或 支撑辊)的两端部支撑在轧机的机架上, 即在轧辊的辊径处承受着巨大的轧制 压力。 在轧制过程中, 由于轧制压力, 轧辊会不可避免地出现挠曲变形, 从 而使得轧制出来的板材在宽度方向厚度不均, 使板材的厚度精度达不到要 求, 大大地影响了轧件的质量。
图 1和图 2所示为本发明第一实施例的中部支撑的轧机。 该轧机具有机 架 4 , 它由左右两片组成。 在机架 4的靠近上端和下端部位分别装有上、 下 横梁 8 、 8 ' , 在上、 下横梁之间的机架的窗口内安装有工作辊 12 、 12 ' , 轴承 14、 14 ' , 轧辊座 16、 16 '和中部支撑垫块 18、 18 '。 位于两工作辊 12 、 12 '之间的是轧件 2。 从图中可以看出, 上工作辊 12的辊身由上轴承 14支撑在上轧辊座 16上, 该轴承 14为弧形或半圆形的滑动轴承。 在上轧辊 座 16与上横梁 8之间装设有支撑垫块 18。 支撑垫块以及滑动轴承均应位于 沿工作辊辊身轴线方向的中部区域, 即不能位于工作辊两端的轴颈部位, 并 且位于工作辊辊身长度范围之内。 支撑垫块可以是一块或数块, 在图示实施 例中, 支撑垫块为对称布置的两块。 在机架 4上位于上横梁 8的两端处设置 有压下装置 6。 压下装置 6与上横梁 8的两端接触以承受轧制力, 并且, 压 下装置 6的上下动作可使上横梁 8在机架 4的窗口内上下移动, 以便调节辊 缝。 在图示实施例中, 压下装置 6为螺杆装置, 但是显然它也可以用液压缸 来代替。
下工作辊 12 '的辊身由下轴承 14 '支撑在下轧辊座 16 '上, 该轴承 14 ' 也为弧形或半圆形的滑动轴承。 在下轧辊座 16 '与下横梁 8 '之间装设有支撑 垫块 18 '。 支撑垫块及滑动轴承均应位于沿工作辊辊身轴线方向的中部区 域, 并且位于工作辊辊身长度范围之内。 下横梁 8 '的两端支撑于机架 4。 显 然, 通过选用不同厚度规格的中部支撑垫块 18 '即可实现轧制线的调整。 也 可以采用液压装置或螺杆装置来代替中部支撑垫块 18 '以实现调整轧制线。 轧制线的调整还可以通过在下横梁 8 '与机架 4之间设置垫块或液压装置或螺 杆装置来实现。
由于上述本发明轧机的构造, 使轧辊的挠曲度显著减小, 这是因为本发 明的轧机在结构上形成位于工作辊辊身轴线中部附近, 在辊身长度之内的支 撑系统, 所以确保了工作辊母线的正确形状, 即母线的直线度, 因此使得工 作辊的挠曲变形基本上不会随着轧制力的变化而改变, 因而使其挠曲变形大 大减小, 最终效果使得轧
件板帶材的厚度误差减小。 本实施例也可以将轧机倒置, 即使压下装置变为作用力方向朝上, 这时 具有同样的效果。
图 3和图 4所示的本发明第二实施例的轧机, 由图中可以看出这是将本 发明用于四辊轧机的例子。该轧机具有机架 4,压下装置 6和上、下横梁 8、 8', 在上下横梁之间的机架的窗口内安装有工作辊 22、 22', 支撑辊 23、 23',轴承 24、 24', 轧辊座 26、 26'和中部支撑垫块 28、 28'。 本实施例 与第一实施例的区别仅在于在工作棍与轧辊座之间加设了一个支撑辊, 其它 结构和原理均与第一实施例相同。 若在工作辊与支撑辊之间再加上中间抽动 辊, 即将本发明应用于 HC轧机的例子, 则效果会更好。
图 5和图 6所示为本发明的第三实施例, 由图中可以看出这是将本发明 应用于塔形辊系轧机的例子。 该轧机具有机架 4, 压下装置 6和下、 下横梁 8、 8', 在上、 下横梁之间的机架窗口内安装有工作棍 32、 32', 上、 下各 两个支撑辊 33、 33',轴承 34、 34',轧辊座 36、 36'和中部支撑垫块 38、 38'。 本实施例不限于图示的六辊塔形辊系轧机, 对于其它棍数或结构的塔 形辊系轧机同样适用。
在本发明的第二和第三实施例中, 所采用的轴承可以是与第一实施例相 同的滑动轴承, 也可以不采用这种滑动轴承, 而将支撑辊自身制成背衬轴承, 即由内圏和外圈构成的滚动轴承。
图 7和图 8所示为本发明的第四实施例的轧机。 该轧机具有机架 4 , 压 下装置 6, 和上、 下横梁 8、 8', 在上、 下横梁之间的机架窗口内安装有上、 下工作辊 42、 42', 轴承 44、 44', 上、 下轧辊座 46、 46'和位于下轧辊 座 46'与下横梁 8'之间的中部支撑垫块 48'。 与第一实施例相比, 本实施例 将轧机的上横梁 8与机架 4固定安装, 并将压下装置 6由相应于上横梁两端 处的机架 4上移到了上横梁上, 位于横梁的沿工作辊辊身轴线方向的中部区 域, 取消了上支撑垫块, 使压下装置 6与上轧辊座 46直接接触。 可见, 本实 施例将第一实施例的压下装置在横梁两端压下变为在中部压下, 即, 它同时 起到了压下装置和上支撑垫块的作用。 本实施例同样可以将第二、 第三实施 例中的辊系及轧棍座应用于本实施例, 在此就不再重复描述了。 本实施例还 可以将上下横梁 8、 8'与机架 4拼接、 焊接或铸造到一起, 也具有同样的效 果。
第二、 第三、 第四实施例均可将轧机倒置, 也具有同样效果。 第二、 第三、 第四实施例中的螺杆也可由液压缸等来代替,
关于第二、 第三、 第四实施例方案所受轧制力的传递, 及中部支撑或中 部压下对减小工作辊挠曲变形的原理和作用也基本相同, 在此就不重复描述 了。
本发明的轧机与现有技术相比, 具有以下优点: '
由于本发明的轧机中部支撑或压下装置的位置位于工作辊辊身轴线的 中部区域, 在工作辊辊身长度范围内对工作辊形成中部支撑系统, 从而保证 了工作辊母线的形状, 使得工作辊的挠曲变形基本上不随轧制力的波动而改 变, 使板带材的厚度误差减小。
本发明轧机可在原始辊型的设计和轧制中辊型的控制大为简化 发明的 轧机由于工作辊的挠曲变形基本上不随轧制力的波动而改变, 在原始辊型设 计中的诸因素如轧辊的挠曲变形、 压扁变形、 热膨胀和磨损等, 就可不考虑 挠曲变形这一最重要的因素, 而热膨胀和磨损又是变化緩慢的因素, 因而可 使原始辊型的设计和轧制中辊型的控制大为简化, 另外, 由于避免了现有技 术的两个工作辊挠曲变形所形成的 "孔型", 所以有利于金属的合理横向流 动, 使得有利于用楔形坯料轧制高精度板带材, 并且使板带材的 "边缘减薄" 现象大为改善。 本发明第一、 第二、 第三和第四实施例中的上部和下部轧辊 座组件(包括轧辊座、 辊系)可以相互交叉配置, 也可以与现有技术中的轧辊 座组件或辊系交叉配置, 同样能达到前述本发明的目的。
本发明轧机还特别适用于对现有的二辊轧机, 四辊轧机, HC轧机等进 行改造, 将原轧机辊系置换出来即可。
本发明不只限于应用在冷轧机, 还能适用于热轧板带材的生产用轧机。 尽管上面描述了本发明的较佳实施例, 但是, 对于本领域内的技术人员 来说, 在不超出本发明附加的权利要求范围情况下, 对本发明进行的更改均 应包括在本发明的范围之内。

Claims

6 权利要求
1 、 一种轧制板带材的轧机, 包括: 机架 (4), 上、 下横梁 (8,8' ), 压下 装置 (6), 轧棍座 (16,16'; 26,26'; 36,36'), 上辊系(12; 22,23; 32,33)和 下辊系(12'; 22', 23'; 32', 33'), 其中, 所述的上、 下横梁分别安装在机 架 (4)的上端和下端处,所述的压下装置 (6)安装在机架 (4)上且位于横梁的两端 处并可使所述的上、 下横梁中的至少一个移动以调节辊缝, 在上、 下横梁之 间设置有上、 下辊系和至少一个轧辊座, 在轧辊座与横梁之间设有支撑垫块 (18,18'; 28,28'; 38,38'), 在所述的辊系与轧辊座之间设有轴承 (14,14'; 24,24'; 34,34'), 并且, 所述的支撑垫块和所述的轴承位于所述辊系的中间 部位, 且在辊长范围之内。
2、 如权利要求 1所述的轧机, 其中, 在所述的上、 下横梁之间设置有 上、 下辊系和上、 下两个轧辊座。
3、 如权利要求 1或 2所述的轧机, 其中, 所述的轴承为弧形的滑动轴 承。
4、 如权利要求 3 所述的轧机, 其中, 所述的上辊系由一个工作辊 (12) 构成, 所述的滑动轴承 (14)设置在该工作辊 (12)与轧辊座 (16)之间。
5、 如权利要求 3或 4所述的轧机, 其中, 所述的下辊系由一个工作辊 ( 12 ' )构成, 所述的滑动轴承 ( 14 ' )设置在该工作辊 ( 12 ' )与轧辊座 ( 16 ' )之间。
6 、 如权利要求 3 所述的轧机, 其中, 所述的上辊系由一个工作辊 (22) 和一个支撑辊 (23)构成,所述的滑动轴承 (24)设置在该支撑辊 (23)与轧辊座 (26) 之间,
7、 如权利要求 3或 6所述的轧机, 其中, 所述的下辊系由一个工作辊 (22' )和一个支撑辊 (23' )构成, 所述的滑动轴承 (24' )设置在该支撑辊 (23' )与 轧辊座 (26' )之间。
8、 如权利要求 3 所述的轧机, 其中, 所述的上辊系由一个工作辊 (32) 和至少两个支撑辊 (33)构成, 所述的滑动轴承 (34)设置在所述的支撑辊 (33)与 轧辊座 (36)之间。
9、 如权利要求 3或 8所述的轧机, 其中, 所述的下辊系由一个工作辊 (32' )和至少两个支撑辊 (33' )构成, 所述滑动轴承 (34' )设置在所述支撑辊
(33 ')与轧棍座 (36' )之间。
10、如权利要求 1所述的轧机,其中,所述的上辊系由一个工作辊 (22,32) 和至少一个支撑辊 (23,33)构成, 所述的支撑辊包括由内、 外圈组成的滚动轴 承。
11、 如权利要求 1或 10所述的轧机, 其中, 所述的下辊系由一个工作 辊 (22 ' ,32 ' )和至少一个支撑辊 (23 ' ,33 ' )构成, 所述的支撑辊为由内、 外圈组 成的滚动轴承。
12、 如权利要求 1至 11 中任一项所述的轧机, 其中, 所述的上、 下横 梁中的一个固定安装在机架 (4)上, 而上、 下横梁中的另一个则可在其两端的 压下装置作用下移动。
13、 如权利要求 1至 11 中任一项所述的轧机, 其中, 所述的上、 下横 梁均可在其两端的压下装置作用下移动。
14、 如上述任一项权利要求所述的轧机, 其中, 所述的上辊系和下辊系 与轧辊座之间均设有轴承。
15、 一种轧制板带材的轧机, 包括: 机架 (4),上、 下横梁 (8,8 ' ), 压下装 置 (6), 轧辊座 (4,4 ' ), 上辊系 (42)和下辊系 (42 ' ), 其中, 所述的上、 下横梁 分别固定安装在机架 (2)的上端和下端处, 在上、 下横梁之间设置有至少一个 轧辊座和上、 下辊系, 所述的上、 下横梁中的至少一个的中间部位设置有所 述的压下装置 (6), 该压下装置可使与其接触的轧辊座 (46,46 ' )移动以调节辊 缝, 在轧辊座与上、 下辊系之间设有轴承 (44,44' ), 所述的轴承位于棍系的 中间部位, 且在辊长范围之内。
16、 如权利要求 15所述的轧机, 其中, 在上、 下横梁之间设置有上、 下辊系和上、 下两个轧辊座。
17、 如权利要求 15或 16所述的轧机, 其中, 所述的轴承为弧形的滑动 轴承 (44,44 ' )。
18、 如权利要求 17所述的轧机, 其中, 所述的上辊系由一个工作辊 (42) 构成, 所述的滑动轴承 (44)设置在该工作辊 (42)与轧辊座 (46)之间。
19、 如权利要求 17或 18所述的轧机, 其中, 所述的下辊系由一个工作 辊 (42 ' )构成, 所述的滑动轴承 (44 ' )设置在该工作辊 (42 ' )与轧辊座 (46 ' )之 间。
20、 如权利要求 17所述的轧机, 其中, 所述的上辊系由一个工作辊和 至少一个支撑辊构成, 所述的滑动轴承设置在支撑辊与轧棍座之间。
21、 如权利要求 17或 20所述的轧机, 其中, 所述的下辊系由一个工作 辊和至少一个支撑辊构成, 所述的滑动轴承设置在支撑辊和轧棍座之间。
22、 如权利要求 16所述的轧机, 其中, 所述的上辊系由一个工作辊和 至少一个支撑辊构成, 所述的支撑辊为由内、 外圈组成的滚动轴承。
23、 如权利要求 16或 22所述的轧机, 其中, 所述的下辊系由一个工作 辊和至少一个支撑辊构成, 所述的支撑辊为由内、 外圏组成的滚动轴承。
24、 如权利要求 15至 23中任一项所述的轧机, 其中, 所述的上、 下横 梁的中间部位均设有所述的压下装置.
25、 如权利要求 15至 23中任一项所述的轧机, 其中, 仅在所述的上横 梁的中间部位设有所述的压下装置 (6), 所述的下横梁与轧辊座之间设有支撑 垫块 (48 ' ), 该支撑垫块位于所述辊系的中间部位, 且在辊长范围之内。
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
PCT/CN1997/000092 WO1999011396A1 (fr) 1997-09-04 1997-09-04 Laminoir pour feuillards ou produits plats
EP97938744A EP1020237B1 (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
DE69731671T DE69731671T2 (de) 1997-09-04 1997-09-04 Walzwerk zum walzen von bändern oder blechen
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
CA002302424A CA2302424C (en) 1997-09-04 1997-09-04 A rolling mill for rolling plates or strips
AU41103/97A AU750839B2 (en) 1997-09-04 1997-09-04 A mill for rolling strips or plates
BR9714856A BR9714856A (pt) 1997-09-04 1997-09-04 Laminador para laminar placa ou tira
RU2000107849/02A RU2198750C2 (ru) 1997-09-04 1997-09-04 Прокатный стан для листового или полосового проката

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CN109277411A (zh) * 2018-11-13 2019-01-29 郑红专 一种具有分体式机架的轧机

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RU2307715C1 (ru) * 2006-01-25 2007-10-10 Валерий Владимирович Бодров Прокатная клеть с гидравлическим нажимным устройством

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CN109277411A (zh) * 2018-11-13 2019-01-29 郑红专 一种具有分体式机架的轧机

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

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