JPH04123806A - Device for attaching/detaching chock - Google Patents
Device for attaching/detaching chockInfo
- Publication number
- JPH04123806A JPH04123806A JP23945390A JP23945390A JPH04123806A JP H04123806 A JPH04123806 A JP H04123806A JP 23945390 A JP23945390 A JP 23945390A JP 23945390 A JP23945390 A JP 23945390A JP H04123806 A JPH04123806 A JP H04123806A
- Authority
- JP
- Japan
- Prior art keywords
- chock
- roll
- attaching
- detaching
- attatching
- 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 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
〈産業上の利用分野〉
本発明は、圧延設備のロールに対してチョックを着脱す
るための装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] <Industrial Application Field> The present invention relates to a device for attaching and detaching a chock to and from a roll of a rolling equipment.
〈従来の技術〉
圧延設備においては、製品仕様の変化に対応するために
、あるいはロール自体を整備するために、ロールスタン
ドに対してロールを着脱することがある。この際、ロー
ルを支持するためのチョックをロールに対して着脱する
作業が行なわれる。<Prior Art> In rolling equipment, rolls are sometimes attached to and removed from roll stands in order to respond to changes in product specifications or to maintain the rolls themselves. At this time, work is performed to attach and detach chocks for supporting the rolls to and from the rolls.
従来、このチョック着脱作業は、ロールを水平に支持し
たうえで、油圧ジヤツキなどを用いである所定の基準レ
ベルまでチョックを持上げ、この後に軸線方向に沿って
チョックを移動させることによって行なわれていた。Conventionally, this work of attaching and detaching the chock was carried out by supporting the roll horizontally, lifting the chock to a predetermined reference level using a hydraulic jack, and then moving the chock along the axial direction. .
〈発明が解決しようとする課題〉
このような従来方法によると、チョック着脱時における
ロールの支持位置とチョックの持上げ位置とが常に一定
であり、機械の経年変化などによってレベルが変化して
も、ロールの支持位置とは無関係にチョックが持上げら
れるため、チョックの持上げ荷重が過大となったり、あ
るいはチョックの持上げストロークが十分でなかったり
することがあった。そのため、チョックの円滑な着脱が
行なえずにロールの軸受は部に傷が付いたりする虞れが
多分にあった。しかも、多重式圧延設備において複数の
チョックを同時に着脱しようとする場合には、チョック
持上げ高さの精度管理が極めて厄介であった。<Problems to be Solved by the Invention> According to such a conventional method, the support position of the roll and the lifting position of the chock are always constant when attaching and detaching the chock, and even if the level changes due to aging of the machine, etc. Since the chock is lifted regardless of the supporting position of the roll, the lifting load of the chock may become excessive, or the lifting stroke of the chock may not be sufficient. Therefore, the chock could not be smoothly attached and detached, and there was a high risk that the roll bearing would be damaged. Moreover, when attempting to simultaneously attach and detach a plurality of chocks in a multi-rolling facility, it is extremely difficult to accurately control the lifting height of the chocks.
本発明は、このような不都合を改善するべく案出された
ものであり、その主な目的は、チョックをロールに対し
て円滑に着脱することができるように改良されたチョッ
ク着脱装置を提供することにある。The present invention was devised to improve these inconveniences, and its main purpose is to provide an improved chock attachment/detaching device that allows the chock to be smoothly attached to and detached from the roll. There is a particular thing.
［発明の構成］
〈課題を解決するだめの手段〉
このような目的は、本発明によれば、圧延設備用のチョ
ック着脱装置におけるチョック持上げリフト装置に、そ
の推力の作用方向が互いに平行した流体圧駆動手段とば
ね手段とを設け、かつこれらの合算推力を、チョック重
量よりやや大きな値にすることにより達成される。[Structure of the Invention] <Means for Solving the Problems> According to the present invention, it is an object of the present invention to provide a chock lifting device in a chock attaching/detaching device for rolling equipment with fluids whose thrust directions are parallel to each other. This is achieved by providing a pressure drive means and a spring means, and making their combined thrust a value slightly larger than the weight of the chock.
〈作用〉
このような構成によれば、チョックの重量は完全に支え
られ、かつ、例えばコイルばねとアキュムレータのガス
ばねとを組合わせてなるばね手段の撓みにより、ロール
にまで過大な推力が作用することは回避される。すなわ
ち、ロールに対してチョックが幾分弾性を伴って浮動的
に支持された形になる。<Function> According to such a configuration, the weight of the chock is completely supported, and excessive thrust is not applied to the roll due to the deflection of the spring means, for example, which is a combination of a coil spring and a gas spring of an accumulator. is avoided. That is, the chock is supported floatingly with some elasticity with respect to the roll.
〈実施例〉
以下に添付の図面に示された具体的な実施例に基づいて
本発明の構成について詳細に説明する。<Example> The structure of the present invention will be described in detail below based on a specific example shown in the attached drawings.
第１図および第２図は、本発明が適用されたチョック着
脱装置の全体を示している。このチョック着脱装置１は
、チョック着脱前後のロール２を支持したうえで走行す
るロール支持台車３のレール４の脇に設置され、図示さ
れていない圧延設備あるいは交換用ロールのストレージ
ラックから、ロール支持台車３にて搬送されてくるロー
ル２に対してチョック５を着脱するためのものである。1 and 2 show the entire chock attachment/detachment device to which the present invention is applied. This chock attaching/detaching device 1 is installed beside the rail 4 of a roll support cart 3 that runs while supporting rolls 2 before and after attaching/detaching chocks, and is connected to a rolling equipment (not shown) or from a storage rack for replacement rolls. This is for attaching and detaching the chock 5 to and from the roll 2 transported by the truck 3.
チョック着脱装置１は、複数のチョック（本実施例にお
いては４個）５を同時に着脱できるように構成されてお
り、ロール支持台車３上に水平に支持されたロール２の
軸線に沿って（第１図矢印Ａ方向）油圧シリンダ装置６
によって押し引き駆動されるスライドフレーム７と、こ
のスライドフレーム７上に」−下方向に並設された４台
のリフト装置８とからなっている。The chock attaching/detaching device 1 is configured to be able to attach/detach a plurality of chocks (four in this example) 5 at the same time. Figure 1 arrow A direction) Hydraulic cylinder device 6
It consists of a slide frame 7 that is pushed and pulled by the slide frame 7, and four lift devices 8 arranged downwardly in parallel on the slide frame 7.
リフト装置８は、第３図に良く示すように、スライドフ
レーム７からロール２の軸線に沿って突設された４組の
アームつと、各アーム９の」二面に固設された一対の垂
直ガイドバー１０に係合して上下に移動し得る支持部材
１１と、これらアーム９と支持部材１１との間に並設さ
れた一対の油圧シリンダ装置１２および一対の圧縮コイ
ルばね１３と、アキュムレータ１９を組込んでなる油圧
シリンダ装置駆動用油圧回路（後述）とからなっている
。As clearly shown in FIG. 3, the lift device 8 includes four sets of arms protruding from the slide frame 7 along the axis of the roll 2, and a pair of vertical arms fixed to two sides of each arm 9. A support member 11 that can engage with a guide bar 10 and move up and down, a pair of hydraulic cylinder devices 12 and a pair of compression coil springs 13 arranged in parallel between these arms 9 and the support member 11, and an accumulator 19. and a hydraulic circuit for driving a hydraulic cylinder device (described later).
支持部材１１の」二面には、チョック５の側面に突設さ
れた突部１４を下側から支持するために、その底部が平
坦に形成された凹所１５が形成されている。そしてこの
凹所１５の前後の段部に突部１４の前後端のエツジ部が
係止するようになっている。A recess 15 having a flat bottom is formed on the second surface of the support member 11 in order to support the protrusion 14 protruding from the side surface of the chock 5 from below. The edge portions at the front and rear ends of the protrusion 14 are engaged with the front and rear step portions of the recess 15.
他方、油圧シリンダ装置１２は、第４図に示すように、
ピストン両側の圧力室への油圧の方向が電磁弁１６にて
切換えられて押し引き双方向（第３図矢印Ｂ方向）駆動
されると共に、減圧弁１７にて作動圧力が設定されるよ
うになっている。また、ピストン下室側に連結された油
路１８には、ガス封入式のアキュムレータ１９が介設さ
れている。On the other hand, the hydraulic cylinder device 12, as shown in FIG.
The direction of the hydraulic pressure to the pressure chambers on both sides of the piston is switched by the solenoid valve 16 to drive the piston in both directions (in the direction of arrow B in FIG. 3), and the operating pressure is set by the pressure reducing valve 17. ing. Furthermore, a gas-filled accumulator 19 is interposed in the oil passage 18 connected to the lower chamber side of the piston.
次に本実施例の作用について説明する。Next, the operation of this embodiment will be explained.
チョック重量の８０〜９０パ一セント程度の推力を油圧
シリンダ装置１２が発生するように作動圧力を設定し、
かつコイルばね１３のリテーナ１３ａの位置を変えるこ
とにより、ばね反力がチョック重量の４０パ一セント程
度となるように設定する。これにより、シリンダ推ノｊ
とコイルばね反力との合算推力がチョック重量の１．２
〜１．３倍となる。The operating pressure is set so that the hydraulic cylinder device 12 generates a thrust of about 80 to 90 percent of the chock weight,
By changing the position of the retainer 13a of the coil spring 13, the spring reaction force is set to be about 40 percent of the chock weight. As a result, the cylinder thrust
The total thrust of this and the coil spring reaction force is 1.2 of the chock weight.
~1.3 times.
このように設定した後、ロール２に取付けられた状態の
チョック５を脱却する際には、油圧シリンダ装置１２を
収縮させて支持部材１１を下降させたうえでスライドフ
レーム７を押し方向へ駆動し、チョック５の突部１４の
下方へと支持部材１１を進入させる。この時、油圧シリ
ンダ装置１２の推力がコイルばね１３の反力の概ね２倍
であるので、支持部材１１は限度−杯まで下降し得る。After setting in this way, when removing the chock 5 attached to the roll 2, the hydraulic cylinder device 12 is contracted to lower the support member 11, and then the slide frame 7 is driven in the pushing direction. , the support member 11 is advanced below the protrusion 14 of the chock 5. At this time, since the thrust of the hydraulic cylinder device 12 is approximately twice the reaction force of the coil spring 13, the support member 11 can descend to its limit.
次に、チョック５の突部１４に支持部材１１の凹所１５
を整合させて油圧シリンダ装置１２を伸長させ、支持部
材１１を上昇させる。この時、ロール重量はチョック重
量よりも遥かに大きいので、この状態下にあっては、チ
ョック重量自体は完全にリフト装置８にて支持されるが
、ロール２が持」二げられるまでには至らない。Next, the recess 15 of the support member 11 is inserted into the protrusion 14 of the chock 5.
are aligned, the hydraulic cylinder device 12 is extended, and the support member 11 is raised. At this time, the weight of the roll is much larger than the weight of the chock, so under this condition, the weight of the chock itself is completely supported by the lifting device 8, but by the time the roll 2 is lifted, Not enough.
この状態にてスライドフレーム７を引き方向へ駆動し、
チョック５を引抜く。この時、チョック重量に比してリ
フト装置８の持」―げ力が大きく設定されているので、
チョック５が余分に持上げられることとなるが、実際に
はこの余剰力は、ロール２の外周とチョック５の内周と
の間のクリアランスや、油圧シリンダ装置１２のフリク
ションロスあるいはコイルばね１３の撓みによって吸収
されるので、チョック５は実質的に浮動支持された状態
となり、極めて円滑にチョック脱却作業を実施すること
かできる。In this state, drive the slide frame 7 in the pulling direction,
Pull out chock 5. At this time, since the lifting force of the lifting device 8 is set to be large compared to the weight of the chock,
The chock 5 will be lifted up extra, but in reality, this surplus force is due to the clearance between the outer periphery of the roll 2 and the inner periphery of the chock 5, friction loss of the hydraulic cylinder device 12, or deflection of the coil spring 13. Since the chock 5 is absorbed by the chock 5, the chock 5 is substantially supported in a floating state, and the chock removal operation can be carried out extremely smoothly.
チョック５をロール２に取付ける際には、」二記の逆の
手順にて行なえば良い。この時、油路１８に設けられた
アキュムレータ１９がガスばねとして作用するので、油
圧シリンダ装置１２は油圧ロックされないことから、チ
ョック組込み時のレベルが幾分狂っても、円滑に組込み
が行なえる。When attaching the chock 5 to the roll 2, follow the steps in ``2'' in reverse. At this time, since the accumulator 19 provided in the oil passage 18 acts as a gas spring, the hydraulic cylinder device 12 is not hydraulically locked, so even if the level at the time of assembling the chock is slightly out of order, the assembling can be carried out smoothly.
［発明の効果コ
このように本発明によれば、ロールに対してチョックが
幾分弾性を伴って浮動的に支持された形になることから
、ロールに対するチョックの着脱作業を円滑化すること
ができ、かつチョック着脱時にロールが損傷することを
防止し得る。しかもチョック重量の変化に対しては、油
圧の設定およびコイルばねの初期圧縮力を変えることに
よって容易に対応することができるので、チョック着脱
作業性を向上するうえに大きな効果がある。[Effects of the Invention] As described above, according to the present invention, since the chock is supported floatingly with some elasticity with respect to the roll, the work of attaching and detaching the chock to and from the roll can be facilitated. In addition, the roll can be prevented from being damaged when the chock is attached and detached. Furthermore, changes in the weight of the chock can be easily responded to by changing the oil pressure setting and the initial compression force of the coil spring, which has a great effect in improving the workability of attaching and detaching the chock.
第１図は、本発明装置の全体的な正面図であり、第２図
は、第１図における■−■矢視図であり、第３図は、第
２図における■−■線に沿う部分的な断面図であり、第
４図は、基本的な油圧回路図である。
１・・・チョック着脱装置、２・・・ロール、３・・・
ロール支持台車、４・・・レール、５・・・チョック、
６・・・油圧シリンダ装置、７・・・スライドフレーム
、８・・・ＩＪ ７ト装置、９・・・アーム、１０・・
・垂直ガイドバー １１・・・支持部材、１２・・・油
圧シリンダ装置、１３・・・圧縮コイルばね、１４・・
・突部、１５・・・凹所、１６・・・電磁弁、１７・・
・減圧弁、１８・・・油路、１９・・・アキュムレータFIG. 1 is an overall front view of the device of the present invention, FIG. 2 is a view taken along the ■-■ arrow in FIG. 1, and FIG. 3 is a view along the ■-■ line in FIG. FIG. 4 is a partial cross-sectional view and is a basic hydraulic circuit diagram. 1... Chock attaching/detaching device, 2... Roll, 3...
Roll support cart, 4...Rail, 5...Chock,
6...Hydraulic cylinder device, 7...Slide frame, 8...IJ7 device, 9...Arm, 10...
- Vertical guide bar 11... Support member, 12... Hydraulic cylinder device, 13... Compression coil spring, 14...
・Protrusion, 15... Recess, 16... Solenoid valve, 17...
・Pressure reducing valve, 18...Oil passage, 19...Accumulator
Claims (1)
くチョックを持上げるためのリフト装置を備えたチョッ
ク着脱装置であって、 前記リフト装置が、互いに平行する方向への推力を発揮
する流体圧駆動手段とばね手段とを有し、かつこれらの
合算推力が、チョック重量よりもやや大きな値にされて
いることを特徴とするチョック着脱装置。(1) A chock attachment/detachment device equipped with a lift device for lifting the chock to attach and detach the chock to and from the rolls of rolling equipment, wherein the lift device applies fluid pressure that exerts thrust in directions parallel to each other. 1. A chock attaching/detaching device comprising a driving means and a spring means, the total thrust of which is set to a value slightly greater than the weight of the chock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2239453A JPH0763741B2 (en) | 1990-09-10 | 1990-09-10 | Chock attachment / detachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2239453A JPH0763741B2 (en) | 1990-09-10 | 1990-09-10 | Chock attachment / detachment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04123806A true JPH04123806A (en) | 1992-04-23 |
| JPH0763741B2 JPH0763741B2 (en) | 1995-07-12 |
Family
ID=17044993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2239453A Expired - Lifetime JPH0763741B2 (en) | 1990-09-10 | 1990-09-10 | Chock attachment / detachment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0763741B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430583A (en) * | 2011-11-02 | 2012-05-02 | 无锡五冶重工机械有限公司 | Bracket device for transmission shaft of working roll |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433854A (en) * | 1977-08-23 | 1979-03-12 | Ishikawajima Harima Heavy Ind Co Ltd | Vibration type chock inserting and removing device |
| JPS5568108A (en) * | 1978-11-14 | 1980-05-22 | Nippon Kokan Kk <Nkk> | Rearranging unit for work roll chock in rolling mill |
-
1990
- 1990-09-10 JP JP2239453A patent/JPH0763741B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433854A (en) * | 1977-08-23 | 1979-03-12 | Ishikawajima Harima Heavy Ind Co Ltd | Vibration type chock inserting and removing device |
| JPS5568108A (en) * | 1978-11-14 | 1980-05-22 | Nippon Kokan Kk <Nkk> | Rearranging unit for work roll chock in rolling mill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430583A (en) * | 2011-11-02 | 2012-05-02 | 无锡五冶重工机械有限公司 | Bracket device for transmission shaft of working roll |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0763741B2 (en) | 1995-07-12 |
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