JPS63174707A - Multistage rolling mill - Google Patents

Multistage rolling mill

Info

Publication number
JPS63174707A
JPS63174707A JP382387A JP382387A JPS63174707A JP S63174707 A JPS63174707 A JP S63174707A JP 382387 A JP382387 A JP 382387A JP 382387 A JP382387 A JP 382387A JP S63174707 A JPS63174707 A JP S63174707A
Authority
JP
Japan
Prior art keywords
shaft
roll shaft
roll
saddle
bearings
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
JP382387A
Other languages
Japanese (ja)
Inventor
Kokichi Sakamaki
酒巻 弘吉
Hajime Tsubono
坪野 肇
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP382387A priority Critical patent/JPS63174707A/en
Publication of JPS63174707A publication Critical patent/JPS63174707A/en
Pending legal-status Critical Current

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
    • 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

Landscapes

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

Abstract

PURPOSE:To perform a crown control for the roll shaft of a rolling mill by segmenting a hollow roll shaft into pieces by every length penetrating into each bering and segmenting a saddle into the right and left parts sandwiching each bearing. CONSTITUTION:A supporting roll 16 consists of a roll shaft 17, plural bearings 18 being brought into contact with the shaft 17, and saddles 19. The shaft 17 is formed from a hollow shaft and is segmented into pieces of the same number as that of the bearings 18. The saddle 19 is segmented into the right and left parts sandwiching the bearings 18 and is provided with wedge blocks 25. The blocks 25 are pushed by the movement of wedges 30 to perform crown adjustment. In that time, each segmented roll shaft 20 change its position independent of respective adjacent segmented rolls 20... and gives a deformation amount due to the position change to the shaft 17. Thus, a large deformation of the shaft 17 is obtained to increase the crown control effect.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、ウェッジの移動によりウェッジブロックを介
し支持ロールを撓ませてクラウン調整を行う多段圧延機
の、特に支持ロール構造の改良に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a multi-high rolling mill that performs crown adjustment by deflecting a support roll via a wedge block by moving a wedge, particularly to improving the structure of the support roll.

(従来の技術) 第5.6図のように構成された多段圧延機において、(
+)(2)はミルハウジング、(3)(4)は作業ロー
ル、(5)(Ili)はバックアップロール、(7)(
8)は支持ロールを示し、圧延機の圧延中の形状を修正
するクラウン調整は駆動モータ(9)により軸(10)
を回転させ、ウェッジ(11)を昇降させ、かつウェッ
ジブロック(+2)を移動させ、これにより生じる支持
ロール軸(13) (第5図に示す)の撓み変形(曲げ
)で行っている。
(Prior art) In a multi-high rolling mill configured as shown in Fig. 5.6, (
+) (2) is the mill housing, (3) (4) is the work roll, (5) (Ili) is the backup roll, (7) (
8) shows the support roll, and the crown adjustment for correcting the shape during rolling of the rolling mill is carried out by the shaft (10) by the drive motor (9).
is rotated, the wedge (11) is raised and lowered, and the wedge block (+2) is moved, and the supporting roll shaft (13) (shown in FIG. 5) is thereby bent.

また、支持ロール構造は、従来は第5図のように、ロー
ル軸(13)にベアリング(14)を複数個合間すると
共に、各ベアリング(I4)をサドル(15)によって
両側から挾みつけたもので、L記つェッジブロック(1
2)の力をサドル(15)を介しロール軸(+3)に作
用させてロール軸(13)の挟み変形が生起するように
している。
Conventionally, the support roll structure has a roll shaft (13) with a plurality of bearings (14) between them, and each bearing (I4) is sandwiched from both sides by a saddle (15), as shown in Fig. 5. Then, L edge block (1
The force 2) is applied to the roll shaft (+3) through the saddle (15) to cause pinching deformation of the roll shaft (13).

(発明が解決しようとする問題点) しかるに、従来のロール軸(13)は−・木の長尺軸か
らなっているため、ウェッジブロック(I2)を押し出
して支持ロール(7)にクラウンを付けようとしても、
ロール軸(13)の曲げ抵抗(剛性)が大きく、従って
挟みにくいので第3図の略図(A)に模式的に示すよう
に大きなりラウンが付けられない問題があった。また、
ロール軸(13)を細くすれば挟みやす(なるが、強度
不足のため圧延反力を良好に受けとめられなくなる。
(Problem to be solved by the invention) However, since the conventional roll shaft (13) is made of a long wooden shaft, the wedge block (I2) is pushed out and the support roll (7) is crowned. Even if you try,
Since the roll shaft (13) has a large bending resistance (rigidity) and is therefore difficult to pinch, there is a problem in that a large round cannot be attached, as schematically shown in the schematic diagram (A) of FIG. Also,
If the roll shaft (13) is made thinner, it will be easier to pinch (but it will not be able to absorb the rolling reaction force well due to insufficient strength).

本発明はこの問題を解消することを目的とする(問題点
を解決するための手段) 本発明は、ロール軸、このロール軸に套嵌する複数個の
ベアリング、および各ベアリングを両側から挾みつけた
状態でロール軸を支承するサドルからなる支持ロールの
うち、上記ロール軸を中空軸から構成し、この中空ロー
ル軸を各ベアリングを貫通する長さ毎に分割すると共に
、上記サドルを各ベアリングを挾みつける左右部分に分
割した多段圧延機を特徴とする。
An object of the present invention is to solve this problem (means for solving the problem). Of the support rolls consisting of saddles that support the roll shaft in a state where the roll shaft is It features a multi-high rolling mill that is divided into left and right sections.

(作用) 本発明によれば、ロール軸が分割されて1いるため、分
割ロール軸組1fの動きにロール軸全体の曲げ抵抗が作
用せず、従ってウェッジブロックの押出しに各分割ロー
ル軸、およびこれに套嵌したベアリングが移動する結果
、支持ロール軸の変形量が大きくなる。
(Function) According to the present invention, since the roll shaft is divided 1, the bending resistance of the entire roll shaft does not act on the movement of the divided roll shaft assembly 1f, and therefore, each divided roll shaft and As a result of the movement of the bearing fitted over this, the amount of deformation of the support roll shaft increases.

また、ロール軸は中空軸であるから、ロール組替え時は
中空部分に連結ボルトを差込み、ロール軸、ベアリング
、およびサドルを一体的に組付けた状態で上記ロール組
替えが行えると共に、使用状態ではロール軸内部をベア
リング潤滑用クーラントの供給路として利用できる。
In addition, since the roll shaft is a hollow shaft, when recombining the rolls, the connecting bolts are inserted into the hollow part and the roll shaft, bearings, and saddles are integrally assembled. The inside of the shaft can be used as a supply path for bearing lubrication coolant.

(実施例) 以下、本発明の一実施例を図面を用いて説明する。(Example) An embodiment of the present invention will be described below with reference to the drawings.

第1図および第2図に示すように支持ロール(1B)は
ロール軸(17)と、これに套嵌する複数個のベアリン
グ(+8)と、ベアリング(18)を挾みつけた状態で
ロール軸(17)を支持するサドル(19)とからなる
。このうち、ロール軸(17)は中空軸から構成され、
使用するベアリング(18)の数に分割される。
As shown in Figures 1 and 2, the support roll (1B) includes a roll shaft (17), a plurality of bearings (+8) fitted onto this, and a roll shaft with bearings (18) sandwiched between them. (17) and a saddle (19) that supports the saddle (17). Among these, the roll shaft (17) is composed of a hollow shaft,
It is divided into the number of bearings (18) used.

この分割ロール軸(20)はベアリング(18)を貝通
し、かつ両端を次に述べるサドル(19)に受支させる
に足る長さに分割されている。
This divided roll shaft (20) is divided into lengths sufficient to pass the bearing (18) through the shell and have both ends supported by saddles (19) described below.

サドル(+9)は各ベアリング(18)を挾みつける左
右部分、換、ゴすればベアリング(+8)を貫通した分
割ロール軸(20)を支承する左右部分に分割されたも
のとなっている。
The saddle (+9) is divided into left and right parts that sandwich each bearing (18), and left and right parts that support a split roll shaft (20) that passes through the bearing (+8).

ロール組替えにあたっては、分割ロール軸(20)に1
個ずつベアリング(18)を套嵌し、かつサドル(19
)を一対両側から当てつけて、ベアリング(18)を両
サドル(+9)(19)で挟みつけ、かつ分割ロール軸
(20)の両端をサドル(19)(19)に嵌めたもの
を1つのブロックとして同軸に並べ、これらブロックに
第1図で示す連結ポル)(21)を差込んで一体的に支
持ロール(16)を組立てる。このため、連結ポル) 
(2+)を差込む側とは反対側の端部分割ロール軸(2
0)には第2図のようにその中空部(22)にねじ(2
3)を切って、連結ボルト(21)をこれに螺着させる
ことで支持ロール(1B)がロール組替え中に分解しな
いようにする。また、ロール軸(17)の中空部(22
)は使用状態ではベアリング(18)の潤滑用クーラン
トの供給路に利用するので、対接する分割ロール軸(2
0)(20)のうち、いずれかの側にシール用0リング
(24)を嵌着し、−1−記クーラントの洩れを阻止す
るようにしておく。
When rearranging the rolls, place one on the split roll shaft (20).
Fit the bearings (18) one by one and the saddle (19).
) are pressed against each other from both sides, the bearing (18) is sandwiched between both saddles (+9) (19), and both ends of the split roll shaft (20) are fitted into the saddles (19) (19) to form one block. The supporting rolls (16) are assembled integrally by inserting the connecting poles (21) shown in FIG. 1 into these blocks. For this reason, the concatenation pol)
The end split roll shaft (2+) on the opposite side from the side where you insert the
0) has a screw (2) in its hollow part (22) as shown in Fig.
3) and threading the connecting bolt (21) thereto prevents the support roll (1B) from disassembling during roll recombination. In addition, the hollow part (22
) is used as a supply path for lubricating coolant for the bearing (18), so the opposing split roll shaft (2
0) A sealing O-ring (24) is fitted on either side of (20) to prevent leakage of the coolant described in -1-.

しかして連結ボルト(21)により一体化された支持ロ
ール(16)はそのサドル(+9)をウェッジブロック
(25)に取付けたのち、連結ボルト(21)を外すこ
とによって分割ロール軸相互間の拘束力を解消させる。
Thus, the support roll (16) integrated by the connecting bolt (21) is restrained between the split roll axes by attaching its saddle (+9) to the wedge block (25) and then removing the connecting bolt (21). dissolve the power.

また、連結ポル) (21)を抜いた側の中空部(22
)の端部はプラグ(2B)にて栓をし、他端はリングパ
ツキン(27)を介しミルハウジング(28)側のクー
ラント供給穴(29)に連通させる。
In addition, the hollow part (22) on the side where the connecting pole (21) is removed
) is plugged with a plug (2B), and the other end is communicated with a coolant supply hole (29) on the mill housing (28) side via a ring packing (27).

かく成せば、ウェッジ(30)の移動でウェッジブロッ
ク(25)を押出し、クラウン調整を行う時、各分割ロ
ール軸(20)はそれぞれ隣接する分割ロール軸に拘束
されずに位置移動し、例えば第3図の略図(B)に示す
ような変形をロール軸(■7)の全体に付けることがで
き、変形量が大きくなると共に、変形自由度が増大する
に至る。
By doing so, when the wedge block (25) is pushed out by the movement of the wedge (30) and the crown adjustment is performed, each divided roll shaft (20) moves in position without being restrained by the adjacent divided roll shaft. The entire roll shaft (7) can be deformed as shown in the schematic diagram (B) of FIG. 3, and the amount of deformation becomes large and the degree of freedom of deformation increases.

(発明の効果) 以」−詳述したように本発明によれば、ロール軸の大き
な変形が軸強度を落とさずに可能となり、またその変形
自由度が高く、複雑な形状修正も可能になるから、クラ
ウンコントロールの効果が顕著なものとなる。
(Effects of the Invention) - As described in detail, according to the present invention, large deformations of the roll shaft are possible without reducing the shaft strength, and the degree of freedom in deformation is high, making it possible to make complex shape modifications. Therefore, the effect of crown control becomes remarkable.

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

第1図は本発明の一実施例を示す支持ロール部分の断面
図、第2図は第1図の要部拡大図、第3図(A)(B)
は本発明と従来装置とのロール軸変形度合を比較する略
図、第4図は従来多段圧延機の一例を示す一部破断正面
図、第5図は第手図■−V線矢視切断図である。 (16)・・・支持ロール、(17)・・・ロール軸、
(18)・・・ベアリング、(+9)・・・サドル、(
20)・・・分割ロール軸、(25)・・・ウェッジブ
ロック、(30)・・・ウェッジ。 第1図
Figure 1 is a cross-sectional view of a support roll showing an embodiment of the present invention, Figure 2 is an enlarged view of the main part of Figure 1, and Figures 3 (A) and (B).
is a schematic diagram comparing the degree of roll axis deformation between the present invention and a conventional device; FIG. 4 is a partially cutaway front view showing an example of a conventional multi-high rolling mill; and FIG. It is. (16)...Support roll, (17)...Roll shaft,
(18)...Bearing, (+9)...Saddle, (
20)...Split roll shaft, (25)...Wedge block, (30)...Wedge. Figure 1

Claims (1)

【特許請求の範囲】[Claims] ウェッジの移動によりウェッジブロックを介し支持ロー
ルを撓ませてクラウン調整を行う多段圧延機において、
ロール軸、このロール軸に套嵌する複数個のベアリング
、および各ベアリングを両側から挾みつけた状態でロー
ル軸を支承するサドルからなる支持ロールのうち、上記
ロール軸を中空軸から構成し、この中空ロール軸を各ベ
アリングを貫通する長さ毎に分割すると共に、上記サド
ルを各ベアリングを挾みつける左右部分に分割した多段
圧延機。
In a multi-high rolling mill that performs crown adjustment by deflecting the support roll via the wedge block by moving the wedge,
A support roll consisting of a roll shaft, a plurality of bearings fitted onto the roll shaft, and a saddle that supports the roll shaft with each bearing sandwiched from both sides, the roll shaft being constructed from a hollow shaft, A multi-stage rolling mill in which the hollow roll shaft is divided into lengths that pass through each bearing, and the saddle is divided into left and right parts that sandwich each bearing.
JP382387A 1987-01-10 1987-01-10 Multistage rolling mill Pending JPS63174707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP382387A JPS63174707A (en) 1987-01-10 1987-01-10 Multistage rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP382387A JPS63174707A (en) 1987-01-10 1987-01-10 Multistage rolling mill

Publications (1)

Publication Number Publication Date
JPS63174707A true JPS63174707A (en) 1988-07-19

Family

ID=11567915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP382387A Pending JPS63174707A (en) 1987-01-10 1987-01-10 Multistage rolling mill

Country Status (1)

Country Link
JP (1) JPS63174707A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04299604A (en) * 1991-03-27 1992-10-22 Honda Motor Co Ltd Antenna with reflector
EP0693327A1 (en) * 1994-07-22 1996-01-24 T. Sendzimir, Inc. Improved profile adjustment for cluster mills

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04299604A (en) * 1991-03-27 1992-10-22 Honda Motor Co Ltd Antenna with reflector
EP0693327A1 (en) * 1994-07-22 1996-01-24 T. Sendzimir, Inc. Improved profile adjustment for cluster mills

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