JPS6264413A - Driving device for rolling mill - Google Patents

Driving device for rolling mill

Info

Publication number
JPS6264413A
JPS6264413A JP20467186A JP20467186A JPS6264413A JP S6264413 A JPS6264413 A JP S6264413A JP 20467186 A JP20467186 A JP 20467186A JP 20467186 A JP20467186 A JP 20467186A JP S6264413 A JPS6264413 A JP S6264413A
Authority
JP
Japan
Prior art keywords
pinion
transmission shaft
stand
rolls
driving device
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
JP20467186A
Other languages
Japanese (ja)
Inventor
Katsuaki Matsumae
松前 克明
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 JP20467186A priority Critical patent/JPS6264413A/en
Publication of JPS6264413A publication Critical patent/JPS6264413A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B35/00Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/12Toothed-wheel gearings specially adapted for metal-rolling mills; Housings or mountings therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE:To obtain a driving device for rolling mill which is excellent in strength and adjustable while its roll is rotated, by constituting the driving device in such a way that the rotation is once taken out to the outside of its pinion stand and the phase of output shaft in the peripheral direction can be adjusted by a spline coupling. CONSTITUTION:A driving device 10 which drives the rolls 1 and 1 of a mill stand 9 transmits the power of a motor 4 to the upper pinion 12 of a pinion stand 7 through a reduction gear 5 and spindle 6. Then the said power is transmitted from the pinion 12 to the upper kaliber roll 1 of the mill stand 9 through a spindle 8. On the other hand, the power is transmitted from the upper pinion 12 to the lower kaliber roll 1 through a lower pinion 13, helical spline fitting 17, power transmission shaft 10, and spindle 8 and the upper and lower kaliber rolls 1 and 1 are synchronously rotated. In this case, the phase adjustment of the rolls 1 and 1 is performed while a moving case 21 fixed to a frame 11 with screws is retreated against an internal thread hole 22.

Description

【発明の詳細な説明】 (産業上の利用分身ン 本発明は、圧延機用駆動装置に関するものである。[Detailed description of the invention] (industrial use alter ego) The present invention relates to a driving device for a rolling mill.

(従来の技術及びその問題点) 外周に凹凸条を有する異形棒鋼の圧延に、第1図に示す
ように、上下一対のカリバロールIl+によシ棒鋼(2
1表面に凹凸条(3)を成形するものである。
(Prior art and its problems) As shown in FIG.
1. Concave and convex stripes (3) are formed on one surface.

この棒鋼(2)表面に成形される凹凸条(3)に上下か
正確に一致しなければならず、そのためKは上下のカリ
バロール(1)の周方向位相?正確に位置決めする必要
があるが、この調整は極めて困錐な作業であった。
The top and bottom must precisely match the uneven strips (3) formed on the surface of this steel bar (2), so K is the circumferential phase of the upper and lower Calibar rolls (1). Accurate positioning was necessary, but this adjustment was an extremely difficult task.

これらの圧延に使用される圧延機は、第2図に示す如く
、メインモータ(4)の動力を減速機(5)全弁してメ
インスピンドル(61に伝え、ピニオンスタンド171
 Kよシ該動力全上下2分し、上下一対のミルスピンド
ル[81181に伝達し、該スピンドル(8) (81
にミルスタンドt91の上下一対のカリバロールtl+
 +11が連結される駆動装@uo+により駆動されて
いる。従って、カリパロール(1)(1)の周方向位相
はピニオンスタンド(7)内の一対のピニオンの噛合に
より固定的とlる。その為、ロール(1)の周方向位相
調整装置が、ピニオンスタンド(71とミルスタンド(
91間の駆動装Lt oo+内に必要となる。そこで、
この種調整装置について従来から種々の提案がされてい
るが。
As shown in FIG. 2, the rolling mill used for these rolling processes transmits the power of the main motor (4) to the main spindle (61) through the reducer (5) and the pinion stand 171.
The entire power is divided into upper and lower halves and transmitted to a pair of upper and lower mill spindles [81181].
A pair of upper and lower Calibarol TL+ on mill stand T91
It is driven by a drive unit @uo+ to which +11 is connected. Therefore, the circumferential phase of the caliper rolls (1) (1) is fixed due to the meshing of the pair of pinions in the pinion stand (7). Therefore, the circumferential phase adjustment device of the roll (1) is different from the pinion stand (71) and the mill stand (
It is required in the drive unit Ltoo+ between 91 and 91. Therefore,
Various proposals have been made regarding this type of adjustment device.

今だ満足されるものではない。I'm still not satisfied.

例えば、実公昭52−98889公報によれば、スピン
ドフレカップリング内に、同心状のハスバの内外歯車に
設け1両歯車の軸方向噛合位置全開えることによりロー
ルの間方向位相調整金行なうものであるが、この調整に
はff、延機の運転を一旦停止させて行なわlければな
らず、しかも、スペースが狭い内に設けられるので強度
的に光分なものに出来ず2かつ、γ閉溝が光分に出来な
いので寿命が短い等の問題点がある。
For example, according to Japanese Utility Model Publication No. 52-98889, a spindle coupling is provided with concentric helical inner and outer gears, and the axial meshing position of both gears is fully opened to adjust the phase between the rolls. However, this adjustment requires the operation of the ff and rolling mill to be temporarily stopped, and since it is installed in a narrow space, it is difficult to make the intensity even smaller than the γ-closed one. Since grooves cannot be formed into light beams, there are problems such as short lifespan.

且た、特公昭57−98858公報によれば、ピニオン
スタンド内の一対のピニオン?ハスバ歯車とし、両歯車
の軸方向噛合位3を変えることによりロールの局方同位
4目全調整すべく、一方のピニオンを軸方同移動自在と
したものであり、かつこのS−動を運転中にも行なえる
ようにしtものであるが、構造複雑となる。即ち、ピニ
オンスタンド内のピニオンの思量距離が狭いため、ピニ
オンx M受で支持し、かつ移動させるための移動手段
?設けることは構造的に極めてfAJ建″?l″′ある
。葦たスフ゛ラインの隙間を殺すためには軸を支持する
必要があるが、その支持同道もスペース的に困砒である
According to Japanese Patent Publication No. 57-98858, a pair of pinions in a pinion stand? It is a helical gear, and one pinion is made to be able to move freely in the same direction in the axial direction in order to fully adjust the local same position of the roll by changing the axial meshing position 3 of both gears, and this S-motion is operated. Although it is possible to do this inside, the structure becomes complicated. In other words, since the estimated distance of the pinion in the pinion stand is narrow, a means of transportation is needed to support and move the pinion with an M holder? The provision is structurally extremely fAJ construction. In order to eliminate the gaps between the reed fiber lines, it is necessary to support the shaft, but this support is also difficult in terms of space.

更に、ピニオン?軸方向に移動させることtよギヤー間
の歯当りか変ることになりピッチング奮起す原因とl夛
歯阜寿命金低下させることになる等の問題がある。
Furthermore, pinion? Moving it in the axial direction changes the tooth contact between the gears, causing problems such as causing pitching and shortening the tooth life.

(問題点全解決するための手段) そこで本発明は、上記問題点を解決せんとして、一旦ピ
ニオンスタンド外方へ回転七収り出し、スプライン結合
により出力軸の周方向位相調整?なすよりにしたもので
あり、強度的にも憂れ、ロール回転中にも調整か可能で
、かつ潤滑が充分に出来て寿命の延長が図られる圧延機
用駆動装置?提供することを目的とする。従って、その
特徴とする処は、一対の圧延ロールが、ピニオンスタン
ド内に回転自在に且つ軸方向移動不毛に支持され之互い
に噛合する一対のピニオンに夫々連動連結されて駆動さ
れるものにおいて、 前記一対のピニオンの内、一方のピニオンの軸心部に伝
動軸が軸方向相対移動可能に貫挿され、該ピニオンと伝
動軸とはヘリカルスプライン嵌合し、かつ、該伝動軸の
一端部に前記一対のEE延ロールの一万が連動連結され
ると共に、該伝動軸の他端はピニオンスタンドから外方
に突出し、該突出部に相対回転自在に係合して伝動輪金
軸方向に移動させる移動手段が、ピニオンスタンドの外
側部に設けられた点にあるっ (f′11″ 用) 本発明によれば、一対の圧延ロールは、ピニオンスタン
ド内で噛合する一対のピニオンに夫々連結連動されてお
夕、この一対のピニオンの内、いずれか一方にメインモ
ータの動力が伝達されることにより、@記一対の出廷ロ
ールは同期回転されるO しかし、前記一対の圧延ロールの内、一方のものは・一
方のピニオンに貫挿された伝動軸に連結されており、こ
の伝動軸とピニオンとはヘリカルスプライン嵌合全弁し
て動力伝達されている。
(Means for Solving All Problems) Therefore, in order to solve the above-mentioned problems, the present invention first rotates the pinion to the outside of the stand and adjusts the circumferential phase of the output shaft by spline connection. A driving device for a rolling mill that is made of natural materials, has a low strength, can be adjusted even while the rolls are rotating, and has sufficient lubrication to extend its life. The purpose is to provide. Therefore, the feature is that a pair of rolling rolls are supported in a pinion stand so as to be rotatable and movable in the axial direction, and each is driven by being interlocked with a pair of pinions that mesh with each other. A transmission shaft is inserted into the axial center of one of the pair of pinions so as to be relatively movable in the axial direction, and the pinion and the transmission shaft are fitted with a helical spline, and one end of the transmission shaft A pair of 10,000 EE rolling rolls are interlocked and connected, and the other end of the transmission shaft protrudes outward from the pinion stand, engages with the protrusion so as to be relatively rotatable, and moves the transmission wheel in the axial direction. The moving means is provided at the outside of the pinion stand (for f'11'').According to the present invention, the pair of rolling rolls are each connected and interlocked with a pair of pinions meshing in the pinion stand. In the evening, the power of the main motor is transmitted to either one of the pair of pinions, so that the pair of rolling rolls are rotated synchronously. It is connected to a transmission shaft inserted through one pinion, and the transmission shaft and pinion are fully fitted with a helical spline to transmit power.

前記一対の圧延ロールの周方向の位相音度えるには、1
ltr記伝動記音動軸全移動より軸方向に移動させるこ
とにより行なわれる。即ち、伝動軸とピニオンはヘリカ
ルスゲライン嵌合している為、伝動軸の軸方向移動でピ
ニオンと伝動軸間に周方向の相対回動が生じる。この相
対回動によジ、前記一対の圧延ローラの周方向位相が変
わる。
To measure the circumferential phase sound of the pair of rolling rolls, 1
This is done by moving the entire sound axis in the axial direction. That is, since the transmission shaft and the pinion are fitted in a helical groove line, axial movement of the transmission shaft causes relative rotation in the circumferential direction between the pinion and the transmission shaft. This relative rotation changes the circumferential phase of the pair of rolling rollers.

前記移動手段は、伝動軸に相対回転自在に係合している
ため、伝動軸か回転中であってる。該伝動輪金軸方向に
移動させることができる。即ち、圧延ロール駆動中に該
ロールの周方向位相上調整することができる。
Since the moving means is relatively rotatably engaged with the transmission shaft, the transmission shaft is rotating. The transmission wheel can be moved in the axial direction. That is, the circumferential phase of the roll can be adjusted while the roll is being driven.

(実施例) 以下、本発明の実施例を図面に基づ@詳述する。(Example) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

第6凶に示すものは、本発明の第1実施例であり、第2
図に示すピニオンスタンド(7)にローlしの周方向位
相調整装置が設けられたものであり、他の構成は第2図
に示すものと変るところがない。
The sixth example is the first embodiment of the present invention, and the second example is the first embodiment of the present invention.
The pinion stand (7) shown in the figure is provided with a rolling circumferential phase adjusting device, and the other configurations are the same as the one shown in FIG. 2.

同図において、ピニオンスタンド(71のフレーム(1
11内には、互いに噛合する上下一対のピニオンa21
(131がベアリングt141介して回転自在に、かつ
軸方向移動不能に支持されている。上部のピニオンtI
力の一端部にはメインスピンドル(61か、肉池端部に
はミルスピンドル(8)が大々相対回動不能に連結され
ている。
In the same figure, the pinion stand (71 frame (1
11 includes a pair of upper and lower pinions a21 that mesh with each other.
(131 is supported rotatably and immovably in the axial direction via a bearing t141. The upper pinion tI
A main spindle (61) is connected to one end of the force, and a mill spindle (8) is connected to the end of the meat pond in a relatively immovable manner.

下部のピニオン崗の中心部には貫通孔051が設けられ
、該貫通孔0句に伝動軸(IQがピニオンf13)と同
心状に貫挿されている。この伝動@t16iとピニオン
(13とはヘリカルスゲライン嵌合Uηしており、伝動
軸囮は軸方向移動可能とされている。この伝動軸回の一
端部は1貫通孔(151よシ外方に突出し、該突出部に
下部のミルスピンドル(8)が相対回動不能に。
A through hole 051 is provided in the center of the lower pinion shaft, and a transmission shaft (IQ is pinion f13) is inserted concentrically into the through hole 051. This transmission @t16i and the pinion (13) are fitted with helical gear lines, and the transmission shaft decoy is movable in the axial direction. The mill spindle (8) at the bottom is not able to rotate relative to the protrusion.

かつ、軸方向相対移動自在に連結されている。この下部
のミルスピンドル(8)はベアリングull介してフレ
ーム間に支持されている。
Moreover, they are connected so as to be relatively movable in the axial direction. This lower mill spindle (8) is supported between the frames via bearings.

上記伝動軸(leのミルスピンドル側端とは反対側の端
部も貫通孔(151より外方でかつ、フレーム(11)
外方に突出し、該突出端面中心部に油孔す9フが穿設さ
れ、該油孔t191 B 1g′iJ記ヘリカルスプラ
イン嵌合部9力に連通している。
The end of the power transmission shaft (le) opposite to the mill spindle side end is also located outside the through hole (151) and located outside the frame (11).
It protrudes outward, and an oil hole 9 is bored in the center of the protruding end surface, and communicates with the helical spline fitting part 9 shown in FIG.

府記フレーム(11)の外方へ突出する伝動軸(161
の突出部にベアリング端を介して相対回動自在に且つ軸
方向相対移動不能に移動手段である移動ケース別が外嵌
している。この移動ケース馨1)の内端側はフレーム(
川に設けられたピニオン(Iりと同心状の雌ねじ孔−に
進退自在に螺合している。この移動ケース&llは、ベ
アリング迦jを介して伝動軸U 6.1突出部に外嵌し
ている念め、ピニオン(+3)回転中でもフレーム(I
I)に固定可能であり、自然に回転することはない。
A transmission shaft (161) protrudes outward from the Fuki frame (11).
A moving case serving as a moving means is fitted onto the protruding portion of the movable case via a bearing end so as to be relatively rotatable and immovable relative to each other in the axial direction. The inner end of this moving case 1) is a frame (
It is screwed into a pinion (a concentric female threaded hole) provided in the river so that it can move forward and backward. This moving case is externally fitted onto the protruding part of the transmission shaft U6. Just in case, even when the pinion (+3) is rotating, the frame (I)
I) and does not rotate naturally.

上記本発明の第1夾施例によれば、ミルスタンド(9)
のロールil+ 111を駆動させる駆動装置(loi
は、メインモータ(4)の動力を減速機(6)及びメイ
ンスピンドル!61 金経てどニオンスタンド(7)の
上部ピニオン(I2Iに伝達し、該動力勿上部ピニオン
f12iから上部のミルスピンドル(8)を介してミル
スタンド(9)の上刃IJ /<ロールfi+に伝達す
るものと、上部ピニオン(12+かう下部ピニオン03
1、ヘリカルスプライン嵌合量。
According to the first embodiment of the present invention, the mill stand (9)
A drive device (loi
The power of the main motor (4) is transferred to the reducer (6) and the main spindle! 61 The power is transmitted to the upper pinion (I2I) of the kinematic stand (7), and the power is transmitted from the upper pinion f12i to the upper blade IJ /<roll fi+ of the mill stand (9) via the upper mill spindle (8). and the upper pinion (12 + lower pinion 03
1. Helical spline fitting amount.

伝動@061及び下部のミルスピンドル(8)を介して
下カリバロールIl+に伝達するものとに2分され、上
下ロール+ll il+を同期回転させるものである。
It is divided into two parts: transmission @061 and transmission to the lower caliber roll Il+ via the lower mill spindle (8), and the upper and lower rolls +ll and il+ are rotated synchronously.

従って、上下ロールHI Il+の同方向位相は上記駆
動装置(10)によって固定的となるため、該位相調整
は次の如く行なわれる。
Therefore, the phases of the upper and lower rolls HI Il+ in the same direction are fixed by the drive device (10), and the phase adjustment is performed as follows.

即ち、この位相調整は、フレーム(11)にvA着され
比移動ケース(21)を雌ねじ孔pに対して進退させる
ことにより行なわれる。この移動ケース(21)の軸方
向移動によりベアリング(20)を介して伝動軸用が同
行移動する。ピニオン031と伝動軸u61とはヘリカ
ルスプライン嵌合(l力を介して結合している之め、伝
動軸1161は相対回動しつつ軸方向相対移動する。そ
の結果、ピニオン031と伝動軸回との周方向位相差が
生じ、この位相変化は、上下ロール11目1rの周方向
位相変化とlジ、位相調整か行なわれる。
That is, this phase adjustment is performed by moving the ratio movement case (21), which is attached to the frame (11) by vA, forward and backward with respect to the female threaded hole p. This axial movement of the moving case (21) causes the transmission shaft to move along with it via the bearing (20). Since the pinion 031 and the transmission shaft U61 are connected through a helical spline fitting (l force), the transmission shaft 1161 moves relative to each other in the axial direction while rotating relative to each other.As a result, the pinion 031 and the transmission shaft rotate A circumferential phase difference occurs, and this phase change is the same as the circumferential phase change of the upper and lower rolls 11 1r, and phase adjustment is performed.

以上の如く、ピニオン賎と一体回転する伝動軸州にベア
リングCIMk介して外嵌するtaケース則を軸方向移
動させるものであるから、ロール回転中においても移動
ケース(2υの移動thlつことかでき、調整作業の能
率が向上する。またこの移動ケース211は7レーム(
11)外方に突出しているので、スペース的にも制約を
受けることが少なく、該ケース211、及び伝動軸u6
1’2径大なものとすることかでき、十分に強固なもの
とすることができ、且つ構造が簡単になる。また、潤滑
構造も簡単なものとすることができ、かつ、ミルスピン
ドル+8!全i沖葡としているので、強度的にも優れか
つ高速運転に耐えるものである。
As described above, since the ta case law, which is externally fitted through the bearing CIMk on the transmission shaft that rotates integrally with the pinion head, is moved in the axial direction, the moving case (2υ movement thl) is not possible even during roll rotation. , the efficiency of adjustment work is improved.Moreover, this moving case 211 has 7 frames (
11) Since it protrudes outward, there is less space restriction, and the case 211 and the transmission shaft u6
The diameter can be increased by 1'2, it can be made sufficiently strong, and the structure can be simplified. In addition, the lubrication structure can be made simple, and the mill spindle +8! Since it is made entirely of Okinawa, it has excellent strength and can withstand high-speed operation.

第4図に示すものは、本発明の第2夾施例であす、伝動
軸αqとミルスピンドル(8)が軸方向相対移動不能に
連結されているもので、ミルスピンドル(8)は伸縮型
である。
The one shown in FIG. 4 is a second embodiment of the present invention, in which the transmission shaft αq and the mill spindle (8) are connected so as not to be able to move relative to each other in the axial direction, and the mill spindle (8) is of a telescopic type. It is.

尚、本発明は、上記実施例に限定されるものではない。Note that the present invention is not limited to the above embodiments.

(発明の効果) 本発明によれば、構造が極めて簡単で、強度的にも優れ
、ロール回転中にも調整が可能で、かつ潤滑も充分に行
なえる等、実用に供して多大の効果全発挿するものであ
る。
(Effects of the Invention) According to the present invention, the structure is extremely simple, the strength is excellent, adjustment is possible even while the roll is rotating, and sufficient lubrication can be performed. It is something that is inserted.

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

第1図は異形棒鋼の圧延状忠を示す側面図、第2図は圧
延機設備の全体を示す正面図、第6図は6.り発1月の
第1実施例の要部上水す断面図、第4図は旧(第2実施
例ゲ大々示すWr面図であ6゜11)・・・ff、iロ
ール、(4)・・・フィンモータ、(7)・・・ビニ−
づンスタンド、 +81・・・ミルスピンドル、 i9
’・・・ミルスaンド、101・・・駆動袋aL山)・
・・フレーム、 f131・・・ピニオン、(16)・
・・伝動軸、1J71・・・へりカルスグライン嵌合、
2j覧・・移動ケース(移動手段)。 特許出願人  株式会社神戸製鋼所 1仁二P、:、1
Fig. 1 is a side view showing the rolled shape of a deformed steel bar, Fig. 2 is a front view showing the entire rolling mill equipment, and Fig. 6 is a 6. Figure 4 is a sectional view of the main parts of the water supply system of the first embodiment released in January. 4)...fin motor, (7)...viny
Zun stand, +81...mill spindle, i9
'...Mils and, 101...Drive bag aL mountain)・
... Frame, f131... Pinion, (16)
・・Transmission shaft, 1J71・・edge cals-grain fitting,
See 2j...Transportation case (transportation means). Patent applicant: Kobe Steel, Ltd. 1 Jinji P.:, 1

Claims (1)

【特許請求の範囲】[Claims] (1)一対の圧延ロールが、ピニオンスタンド内に回転
自在に且つ軸方向移動不能に支持された互いに噛合する
一対のピニオンに夫々連動連結されて駆動されるものに
おいて、 前記一対のピニオンの内、一方のピニオンの軸心部に伝
動軸が軸方向相対移動可能に貫挿され、該ピニオンと伝
動軸とはヘリカルスプライン嵌合し、かつ、該伝動軸の
一端部に前記一対の圧延ロールの一方が連動連結される
と共に、該伝動軸の他端はピニオンスタンドから外方に
突出し、該突出部に相対回転自在に係合して伝動軸を軸
方向に移動させる移動手段が、ピニオンスタンドの外側
部に設けられたことを特徴とする圧延機用駆動装置。
(1) A pair of rolling rolls is driven by being interlocked with a pair of mutually meshing pinions that are supported rotatably and immovably in the axial direction in a pinion stand, and among the pair of pinions, A transmission shaft is inserted through the axial center of one pinion so as to be relatively movable in the axial direction, the pinion and the transmission shaft are helically spline-fitted, and one end of the transmission shaft is connected to one of the pair of rolling rolls. are interlocked and connected, and the other end of the transmission shaft projects outward from the pinion stand, and a moving means for moving the transmission shaft in the axial direction by engaging the protrusion in a relatively rotatable manner is connected to the outside of the pinion stand. A driving device for a rolling mill, characterized in that it is provided in a section.
JP20467186A 1986-08-30 1986-08-30 Driving device for rolling mill Pending JPS6264413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20467186A JPS6264413A (en) 1986-08-30 1986-08-30 Driving device for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20467186A JPS6264413A (en) 1986-08-30 1986-08-30 Driving device for rolling mill

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP12011082A Division JPS5910407A (en) 1982-07-08 1982-07-08 Driving device for rolling mill

Publications (1)

Publication Number Publication Date
JPS6264413A true JPS6264413A (en) 1987-03-23

Family

ID=16494363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20467186A Pending JPS6264413A (en) 1986-08-30 1986-08-30 Driving device for rolling mill

Country Status (1)

Country Link
JP (1) JPS6264413A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102363152A (en) * 2011-10-14 2012-02-29 山东焱鑫矿用材料加工有限公司 Production equipment of steel for non-cold processing joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102363152A (en) * 2011-10-14 2012-02-29 山东焱鑫矿用材料加工有限公司 Production equipment of steel for non-cold processing joint

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