JPS5841606A - Supporting method for backup roll of rolling mill - Google Patents

Supporting method for backup roll of rolling mill

Info

Publication number
JPS5841606A
JPS5841606A JP13889181A JP13889181A JPS5841606A JP S5841606 A JPS5841606 A JP S5841606A JP 13889181 A JP13889181 A JP 13889181A JP 13889181 A JP13889181 A JP 13889181A JP S5841606 A JPS5841606 A JP S5841606A
Authority
JP
Japan
Prior art keywords
roll
rolls
cradles
lubricating medium
backup roll
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.)
Pending
Application number
JP13889181A
Other languages
Japanese (ja)
Inventor
Nobuo Saito
信雄 斉藤
Yukio Matsuda
行雄 松田
Toshikazu Takigawa
敏二 滝川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP13889181A priority Critical patent/JPS5841606A/en
Publication of JPS5841606A publication Critical patent/JPS5841606A/en
Pending legal-status Critical Current

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
    • 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
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/24—Hydrostatic bearings or guides
    • 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
    • B21B31/074—Oil film bearings, e.g. "Morgoil" bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE:To prevent the deflection of backup rolls by supporting the barrel parts of the rolls with cradles and forming lubricating medium films on the inside surfaces of the cradles. CONSTITUTION:Work rolls 1 of multiplex type rolling mills are driven by a unit 3, and backup rolls 2 are supported in the prescribed outside circumferential range over the entire length of the barrel parts by cradles 4. Since the cradles 4 are supported by screw-down devices 5, the need for the journal parts of the rolls 2 is eliminated. Each cradle body 41 has a recess 411 and bearing metals 412, 413 of soft metals are mounted respectively on the inside circumferential surface and both end faces thereof. Part of the roll 2 is contained in the space formed by these inside surfaces and a lubricating medium is supplied through a joint 42 then through the passages 414 and grooves 415 in the body 41 to the inside surface of the metal 412, and the film othereof is formed between the same and the roll 2. In order to prevent the leakage of the lubricating medium, sealing members 43, 44 are mounted to the edges at the bottom ends of the metals 412, 413.

Description

【発明の詳細な説明】 本発明け、圧延機のバックアップロールの支持方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for supporting a backup roll of a rolling mill.

従来の圧延機は、ロールのジャーナル部を軸受で受ける
構造をとっているので、圧延荷重によってロールが撓む
。ロールが撓むと、圧延材のエツジドロップ、板厚不良
、板形状不良等の問題が生じる。Conventional rolling mills have a structure in which the journal portions of the rolls are supported by bearings, so the rolls are bent by the rolling load. When the rolls are bent, problems such as edge drop of the rolled material, poor plate thickness, and poor plate shape occur.

従来、この」：うな問題を解決するために種々の方法が
提案されてきた。代表的な方法としてロールベンディン
グ法がある。この方法は、ワークロールおよびパック７
ツゾロールのジャーナル部にベンダを作用させてロール
の撓みを修正している。Conventionally, various methods have been proposed to solve this problem. A typical method is the roll bending method. This method uses work rolls and packs 7
The bending of the roll is corrected by applying a bender to the journal part of the Tuzoroll.

別の方法として、ロール胴部に予めクラウンまたは段差
を設けてワークロールの撓みを修正する段付きロール法
がある。さらに別の方法として、バックアップロールま
たは中間ロールｆ：軸方向に移動させてワークロールの
撓みを修正する方法や、スリーゾ式ロールに圧力媒体を
供給し、媒体の圧力を加減することによってロールクラ
ウンを制御する方法等がある。Another method is a stepped roll method in which a crown or step is provided in advance on the roll body to correct the deflection of the work roll. Still another method is to correct the deflection of the work roll by moving the backup roll or intermediate roll f: in the axial direction, or to supply a pressure medium to the sleet type roll and adjust the pressure of the medium to adjust the roll crown. There are ways to control it.

これらの方法は、それぞれ一長一短があるが、これらの
方法はすべてロール両端部でロールを支持する構成をと
っているので、ロール撓みに対する抜本的解決策にはな
っていない。Each of these methods has its advantages and disadvantages, but since all of these methods support the roll at both ends of the roll, they do not provide a fundamental solution to roll deflection.

ｌ〜たがって、本発明の目的は、ロールの撓み全防市す
るロール支持方法を得ることにある。Therefore, an object of the present invention is to provide a roll support method that completely prevents roll deflection.

本発明の方法は、バックアップロールの胴部を受けｔ量
で支ｊ、テし、受は台内面に潤滑媒体膜を形成すること
を！１′？徴としている。In the method of the present invention, the body of the backup roll is supported by an amount of t, and the support forms a lubricating medium film on the inner surface of the table. 1′? It is a sign.

次に、第１図および第２図を参照して本発明の方法のノ
店ｐＨについて説明する。本発明の方法は、ワークロー
・ル１とバックアップロール２とからなる多ＩＦ式圧延
機に適用される。ワークロール１は通常のロールチョッ
ク　（図示せず）によって支持さＪｌ、駆動ユニツｉ・
ろによって駆動される。バックアップロール２は本発明
の方法による受は台４によって支持される。Next, the store pH in the method of the present invention will be explained with reference to FIGS. 1 and 2. The method of the present invention is applied to a multi-IF rolling mill consisting of a work roll 1 and a backup roll 2. The work roll 1 is supported by a conventional roll chock (not shown) and driven by a drive unit i.
Driven by ro. The backup roll 2 is supported by a support 4 according to the method of the invention.

受は台４は、バックアップロール１の胴部全長にわたる
所定の外周範囲を支持する。受は台４はねじ−↑たは液
圧式の通常の圧下装置５によって支持される。したがっ
て、バックアップロールのジャーナル部は不要になる。The support stand 4 supports a predetermined outer circumference range over the entire length of the trunk of the backup roll 1. The receiver pedestal 4 is supported by a conventional lowering device 5 of the screw type or hydraulic type. Therefore, the journal section of the backup roll becomes unnecessary.

※す台４は、第６図および第４図に示すように、本体４
１の片側に凹所４１１が設けられ、凹所４１１の内周面
および両端面にそれぞれ軟質金属の軸受メタル４１２お
よび４１６が装着さ、＃する。*The stand 4 is attached to the main body 4 as shown in Figures 6 and 4.
A recess 411 is provided on one side of the recess 411, and soft metal bearing metals 412 and 416 are mounted on the inner peripheral surface and both end surfaces of the recess 411, respectively.

軸受メタル４１２および４１ろの内面によってバックア
ップロールの一部を収容する空間を形成するＯ 軸受メタル４１２はバックアップロールからの反力を受
けるので、軸受メタル４１２の内面に潤滑媒体膜を形成
することが好寸しい。潤滑媒体としては、通常の潤滑油
、圧延油、グリース等で」：い。潤滑媒体は本体４１の
外部に設けである潤滑媒体供給ユニット　（図示せず）
から、ジヨイント４２をかいて、本体４１に設けた通路
４１４を通り、軸受メタル４１２に設けた溝４１５に供
給される。The inner surfaces of the bearing metals 412 and 41 form a space that accommodates a part of the backup roll. Since the bearing metal 412 receives a reaction force from the backup roll, a lubricating medium film can be formed on the inner surface of the bearing metal 412. Good size. As a lubricating medium, use ordinary lubricating oil, rolling oil, grease, etc. The lubricant is supplied by a lubricant supply unit (not shown) provided outside the main body 41.
From there, it passes through the joint 42, passes through a passage 414 provided in the main body 41, and is supplied to a groove 415 provided in the bearing metal 412.

第５図は軸受メタル４１２．４１６の内面の展開図であ
って、溝４１５の配置例を示す。満４１５は軸方向に平
行に複数条設けられるか（５）、円周方向に平行に複数
条設けられるかＱ３）、−ｉたは両者を組み合せて設け
られてもよい。FIG. 5 is a developed view of the inner surface of the bearing metal 412, 416, and shows an example of the arrangement of the grooves 415. The number 415 may be provided in a plurality of rows parallel to the axial direction (5), or may be provided in a plurality of rows parallel to the circumferential direction (Q3), -i, or a combination of both.

軸受メタル４１２，４１３の下端エツジから４１°ｊ滑
媒体の漏洩を防ＩＦするために、シール部材４３および
４４　（第６図および第４図）が軸受メタル／１１２お
よび４１ろの下端エツジに取り付けられる。In order to prevent leakage of the 41°j sliding medium from the lower edges of the bearing metals 412 and 413, seal members 43 and 44 (Figs. 6 and 4) are attached to the lower edges of the bearing metals 112 and 41. It will be done.

本発明の方法によるロール撓み量を第６図に示す。第６
図はバックアップロール胴長１７５０ｍｍ。The amount of roll deflection obtained by the method of the present invention is shown in FIG. 6th
The figure shows a backup roll body length of 1750mm.

圧延４３幅１５１０＋ｍ、圧下圧力１５２６　ｋｇ／　
ｔｒｌのときにおけるロールの撓み量（μ）を各幅方向
位置についてそれぞれ測定した結果を示す。曲線Ａは従
来法を、捷だ、曲線Ｂは本発明法をそれぞれ示す。Rolling 43 width 1510+m, rolling pressure 1526 kg/
The results of measuring the amount of deflection (μ) of the roll at each position in the width direction at the time of trl are shown. Curve A shows the conventional method, Curve B shows the method of the present invention.

図かられかるように、本発明法によれば、ロール中心に
おけるロールの最大撓み量は従来法によるときよりも約
５分の１に減少される。As can be seen from the figure, according to the method of the present invention, the maximum amount of deflection of the roll at the center of the roll is reduced to about one-fifth compared to when using the conventional method.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の方法を実施した圧延機の正面図。第２
図は第１図のＩＩ　−曲線からみた側面図。 第６図は本発明の方法に使用する受は台の縦断面図。第
４図は第６図のＩＶ＝ＩＶ線からみた横断面図。 第５図は軸受メタル内面の展開図。第６図は従来法と本
発明法と（ｌこよるロール撓み量の比較を示すグラフ。 １：ワークロール　　２：バックアップロールろ：駆動
ユニット　　４：受は台 ５：圧下装置　　　４１：本体 ４２：ジヨイント　　４ろ、４４：シール部イＡ４１・
１：凹所　　　　４１２，４１３　：軸受メタル４１４
：通路　　　　　４１５：溝 特許出願人　住友金属工業株式会社 （外２名）FIG. 1 is a front view of a rolling mill implementing the method of the present invention. Second
The figure is a side view seen from the II-curve in FIG. FIG. 6 is a longitudinal cross-sectional view of a stand used in the method of the present invention. FIG. 4 is a cross-sectional view taken from line IV=IV in FIG. 6. Figure 5 is a developed view of the inner surface of the bearing metal. FIG. 6 is a graph showing a comparison of the amount of roll deflection between the conventional method and the method of the present invention. 1: Work roll 2: Backup roll roller: Drive unit 4: Support table 5: Reduction device 41: Main body 42: Joint 4 Ro, 44: Seal part A41・
1: Recess 412, 413: Bearing metal 414
: Passageway 415: Groove Patent applicant: Sumitomo Metal Industries, Ltd. (2 others)

Claims (1)

【特許請求の範囲】[Claims] ワークロールとバックアップロールとからなる多重代用
延機において、該バックアップロールの胴部全長にわた
る所定の外周範囲を受は台によって支持すること、該受
は舎内面に所定の溝を設けること、該受は台の内面エツ
ジ部にシール部材を設けること、前記溝に潤滑媒体を供
給すること、前）１己受は台を圧下装置によって支持す
ることからなり、前記受は台の内面と前記バックアップ
ロールの外周面との間に潤滑媒体膜を形成することを特
徴とした圧延機のバックアップロールの支持方法。In a multiple substitution rolling mill consisting of a work roll and a backup roll, a predetermined outer circumferential range over the entire length of the body of the backup roll is supported by a stand, the support is provided with a predetermined groove on the inner surface of the building, and the support (1) A self-supporting device is provided with a sealing member on the inner surface edge of the platform, and a lubricating medium is supplied to the groove; A method for supporting a backup roll of a rolling mill, comprising forming a lubricating medium film between the outer peripheral surface of the roll and the outer peripheral surface of the roll.
JP13889181A 1981-09-03 1981-09-03 Supporting method for backup roll of rolling mill Pending JPS5841606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13889181A JPS5841606A (en) 1981-09-03 1981-09-03 Supporting method for backup roll of rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13889181A JPS5841606A (en) 1981-09-03 1981-09-03 Supporting method for backup roll of rolling mill

Publications (1)

Publication Number Publication Date
JPS5841606A true JPS5841606A (en) 1983-03-10

Family

ID=15232528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13889181A Pending JPS5841606A (en) 1981-09-03 1981-09-03 Supporting method for backup roll of rolling mill

Country Status (1)

Country Link
JP (1) JPS5841606A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0337145A2 (en) * 1988-04-11 1989-10-18 Sms Schloemann-Siemag Aktiengesellschaft Device for hydrostatically supporting rolls of a rolling mill
US20100288006A1 (en) * 2007-09-27 2010-11-18 Steven Spencer Backing assembly for use in z-mill type rolling mills

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4993745A (en) * 1973-01-13 1974-09-06
JPS5033156A (en) * 1973-07-27 1975-03-31
JPS55114409A (en) * 1979-02-21 1980-09-03 Vni I Pk I Metarurugiichiesuko Backkup device for working roll of roll rolling base
JPS55158807A (en) * 1979-05-29 1980-12-10 Kawasaki Steel Corp Double rolling mill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4993745A (en) * 1973-01-13 1974-09-06
JPS5033156A (en) * 1973-07-27 1975-03-31
JPS55114409A (en) * 1979-02-21 1980-09-03 Vni I Pk I Metarurugiichiesuko Backkup device for working roll of roll rolling base
JPS55158807A (en) * 1979-05-29 1980-12-10 Kawasaki Steel Corp Double rolling mill

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0337145A2 (en) * 1988-04-11 1989-10-18 Sms Schloemann-Siemag Aktiengesellschaft Device for hydrostatically supporting rolls of a rolling mill
US4996858A (en) * 1988-04-11 1991-03-05 Sms Schloemann-Siemag Aktiengesellschaft Apparatus for hydrostatic bracing of a roll in a rolling mill
US20100288006A1 (en) * 2007-09-27 2010-11-18 Steven Spencer Backing assembly for use in z-mill type rolling mills

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