JPH07256311A - Cross roll mill - Google Patents

Cross roll mill

Info

Publication number
JPH07256311A
JPH07256311A JP5046994A JP5046994A JPH07256311A JP H07256311 A JPH07256311 A JP H07256311A JP 5046994 A JP5046994 A JP 5046994A JP 5046994 A JP5046994 A JP 5046994A JP H07256311 A JPH07256311 A JP H07256311A
Authority
JP
Japan
Prior art keywords
oval
cross pin
shaped hole
coupling
cross
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.)
Withdrawn
Application number
JP5046994A
Other languages
Japanese (ja)
Inventor
Masatoshi Osaki
公聖 大崎
Masahiro Oda
正博 小田
Hideo Maruyama
英生 丸山
Koji Nishimoto
幸治 西本
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP5046994A priority Critical patent/JPH07256311A/en
Publication of JPH07256311A publication Critical patent/JPH07256311A/en
Withdrawn legal-status Critical Current

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Abstract

PURPOSE:To average the strength of upper and lower couplings having an oval-shaped hole and to improve the strength of the oval-shaped hole parts by providing the phase of pivotally attaching part of cross pin of the upper and lower couplings having the oval-shaped hole shifting by a specified angle from the phases of the upper and lower oval-shaped holes. CONSTITUTION:Upper and lower work rolls 2, 12 are crossed and revolved with upper and lower driving shafts 7, 17 through upper and lower couplings 6, 16, upper and lower universal joints 8, 9, 18, 19, upper and lower spindles 1, 11 and the upper and lower couplings 3, 13 having the oval-shaped hole. At this time, the phases of the upper and lower projecting parts 3a, 13a of the upper and lower couplings 3, 13 having the oval-shaped hole are shifted by about 45 deg. from the phases of the oval-shaped holes. Then, the phase angle between the upper oval-shaped hole 3b and the pivotally attaching part of the cross pin 5 in the upper projecting part 3a and phase angle between the lower oval-shaped hole 13b and the pivotally attaching part of cross pin 5 in the lower projecting part 13a are approximately equalized. Consequently, strength drop due to approach of the thin wall part of the upper oval-shaped hole 3b to the pivotally attaching part of cross pin 5 in the upper projecting part 3a is evaded.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ペアクロスロール圧延
機及びワークロールクロス圧延機、詳しくはそのミルス
ピンドルに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pair cross roll rolling mill and a work roll cross rolling mill, and more particularly to a mill spindle therefor.

【0002】[0002]

【従来の技術】従来のペアクロスロール圧延機、ワーク
ロールクロス圧延機等のクロスロール圧延機において
は、図3に示すように、上下ワークロール2,12をク
ロス角θでクロスさせると上下ワークロール2,12と
上下スピンドル1,11と、及び上下スピンドル1,1
1と上下駆動軸7,17とには異なった角度の水平方向
折れ角θ3,θ4がそれぞれ形成されるので、上下駆動
軸7,17によって上下スピンドル1,11及び上下ワ
ークロール2,12を回転して圧延材20を圧延する
と、図4及び図5に示すクロスピン5を用いた自在継手
28,29,38,39では、上下ワークロール2,1
2と上下スピンドル1,11及び上下スピンドル1,1
1と上下駆動軸7,17との間に角速度差が発生し、上
ワークロール2と下ワークロール12との角速度は不均
等になる。そこで、この角度速度の不均等を避けるた
め、図4及び図5に示すように、上スピンドル1のクロ
スピン5を枢着した突出部1aと下スピンドル11のク
ロスピン5を枢着した突出部11a(上小判穴カップリ
ング23及び上カップリング26の突出部23a,26
aと下小判穴カップリング33及び下カップリング36
の突出部33a,36a)との位相を90°ずらした、
逆位相にすることによって各々の回転角度における角速
度差を上下で平均化している。
2. Description of the Related Art In a conventional cross roll rolling machine such as a pair cross roll rolling machine and a work roll cross rolling machine, as shown in FIG. 3, when the upper and lower work rolls 2 and 12 are crossed at a cross angle θ, the upper and lower work rolls are crossed. Rolls 2, 12 and upper and lower spindles 1, 11 and upper and lower spindles 1, 1
Since horizontal folding angles θ3 and θ4 of different angles are formed on the vertical drive shafts 7 and 17, respectively, the vertical drive shafts 7 and 17 rotate the vertical spindles 1 and 11 and the vertical work rolls 2 and 12, respectively. Then, when the rolled material 20 is rolled, in the universal joints 28, 29, 38, 39 using the cross pin 5 shown in FIGS.
2 and upper and lower spindles 1, 11 and upper and lower spindles 1, 1
1 and the vertical drive shafts 7 and 17 cause an angular velocity difference, and the angular velocities of the upper work roll 2 and the lower work roll 12 become uneven. Therefore, in order to avoid the unevenness of the angular velocities, as shown in FIGS. 4 and 5, the protrusion 1a having the cross pin 5 of the upper spindle 1 pivotally attached thereto and the protrusion 11a having the cross pin 5 of the lower spindle 11 pivotally attached thereto ( Projection parts 23a, 26 of the upper oval hole coupling 23 and the upper coupling 26
a, lower oval hole coupling 33 and lower coupling 36
Of the protrusions 33a, 36a) of 90 degrees,
By making the phases opposite to each other, the angular velocity difference at each rotation angle is averaged vertically.

【0003】[0003]

【発明が解決しようとする課題】従来のクロスロール圧
延機には解決すべき次の課題があった。
The conventional cross roll rolling mill has the following problems to be solved.

【0004】即ち、従来の圧延機では上下小判穴カップ
リング23,33は上下小判穴23b,33bを穿設す
ることによって、図4、図5中上下方向の厚さが薄くな
っている。ところが前述した従来の技術の例では、上小
判穴23bの薄い部分の位相と上突出部23aのクロス
ピン5枢着部の位相とが一致している。この位相が一致
した部分の強度がFEM(有限要素法)解析によって計
算したところ、約40%低下することが判明した。従っ
て、図示した例では上小判穴カップリング23の外径を
大きくして上小判穴23b部を厚くする必要がある。
That is, in the conventional rolling mill, the upper and lower oval hole couplings 23 and 33 are made thinner by forming the upper and lower oval holes 23b and 33b. However, in the above-described example of the conventional technique, the phase of the thin portion of the upper oval hole 23b and the phase of the cross pin 5 pivot portion of the upper protruding portion 23a match. When the strength of the portion where the phases coincided with each other was calculated by FEM (finite element method) analysis, it was found that the strength was reduced by about 40%. Therefore, in the illustrated example, it is necessary to increase the outer diameter of the upper oval coupling 23 to thicken the upper oval hole 23b.

【0005】[0005]

【課題を解決するための手段】本発明は上記課題の解決
手段として、互いにクロスさせた上下ワークロールと上
下ミルスピンドルとを上下クロスピン式自在継手及び着
脱自在な上下小判穴カップリングによって連結し、この
上下ミルスピンドルと上下駆動軸とを前記上下クロスピ
ン式自在継手によって連結し、前記上下小判穴カップリ
ングのクロスピン枢着部位相を上下で互いに約90°の
角度でずらせて設けたクロスロール圧延機において、前
記上小判穴カップリングのクロスピン枢着部位相及び下
小判穴カップリングのクロスピン枢着部位相を、前記上
小判穴カップリングの小判穴位相及び下小判穴カップリ
ングの小判穴位相から約45°の角度でそれぞれずらし
て設けたことを特徴とするクロスロール圧延機、を提供
しようとするものである。
Means for Solving the Problems As a means for solving the above problems, the present invention connects upper and lower work rolls and upper and lower mill spindles that are crossed with each other by an upper and lower cross pin type universal joint and a removable upper and lower oval hole coupling, A cross roll rolling machine in which the upper and lower mill spindles and the upper and lower drive shafts are connected by the upper and lower cross pin type universal joints, and the phases of the cross pin pivot portions of the upper and lower oval hole couplings are vertically shifted from each other at an angle of about 90 °. In the above, the cross-pin pivot portion phase of the upper oval coupling and the cross-pin pivot portion phase of the lower oval coupling are approximately equal to the oval phase of the upper oval coupling and the oval phase of the lower oval coupling. To provide a cross-roll rolling machine, which is characterized in that they are provided at respective angles of 45 °. is there.

【0006】[0006]

【作用】本発明は上記のように構成されるので次の作用
を有する。
Since the present invention is constructed as described above, it has the following actions.

【0007】上ワークロールと下ワークロールとをクロ
スさせ、上下駆動軸によって、上下クロスピン式自在継
手、上下ミルスピンドル、上下小判穴カップリングを介
して回転し、圧延材を圧延する。
The upper work roll and the lower work roll are crossed and rotated by a vertical drive shaft through a vertical cross pin type universal joint, a vertical mill spindle, and a vertical oval hole coupling to roll the rolled material.

【0008】このとき、上下小判穴カップリングのクロ
スピン枢着部位相は小判穴位相から約45°の角度でそ
れぞれずらしてあるので、上小判穴カップリングの小判
穴とクロスピン枢着部との位相角度、及び下小判穴カッ
プリングの小判穴とクロスピン枢着部との位相角度とは
ほぼ同一になるので小判穴薄肉部とクロスピン枢着部と
の接近による強度低下を避けることが可能になり、上下
小判穴カップリングの強度はほぼ均等になる。
At this time, the phases of the cross-pin pivot portions of the upper and lower oval-shaped couplings are shifted from each other by about 45 ° from the oval-hole phase, so that the phases of the oval holes of the upper oval-shaped coupling and the cross-pin pivot portions are different. Since the angle and the phase angle of the oval hole of the lower oval hole coupling and the cross pin pivot portion are almost the same, it is possible to avoid a decrease in strength due to the approach between the oval thin portion and the cross pin pivot portion. The strength of the upper and lower oval hole couplings is almost equal.

【0009】[0009]

【実施例】本発明の一実施例を図1、図2により説明す
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

【0010】図1は本発明の一実施例である、クロスロ
ール圧延機のミルスピンドルを示す側面図、図2は図1
のII−II断面図である。
FIG. 1 is a side view showing a mill spindle of a cross roll rolling mill which is an embodiment of the present invention, and FIG. 2 is shown in FIG.
11 is a sectional view taken along line II-II of FIG.

【0011】図1において、1は上スピンドル、11は
下スピンドルであり、その図中右端の上下突出部1a,
11aと、上下駆動軸7,17にそれぞれ嵌着された上
カップリング6及び下カップリング16の上下突出部6
a,16aとにはクロスピン5がそれぞれ回動自在に枢
着され、上スピンドル1と上カップリング6、及び下ス
ピンドル11と下カップリング16はこのクロスピン5
によってそれぞれ連結されている。これらの上下突出部
1a,11a,6a,16aとクロスピン5とによって
上自在継手9及び下自在継手19が構成されている。3
は上小判穴カップリング、13は下小判穴カップリング
であり、その上下突出部3a,13aと、上スピンドル
1及び下スピンドル11の図中左方の上下突出部1a,
11aとにはクロスピン5がそれぞれ回動自在に枢着さ
れ、上スピンドル1と上小判穴カップリング3及び下ス
ピンドル11と下小判穴カップリング13はこのクロス
ピン5によってそれぞれ連結されている。これらの上下
突出部1a,11a,3a,13aとクロスピン5とに
よって上自在継手8及び下自在継手18が構成されてい
る。上下小判穴カップリング3,13の上下小判穴3
b,13bには上ワークロール2及び下ワークロール1
2の上下小判型部2a,12aが着脱自在にそれぞれ嵌
挿されている。
In FIG. 1, reference numeral 1 is an upper spindle and 11 is a lower spindle.
11a and the vertical projections 6 of the upper coupling 6 and the lower coupling 16 fitted to the vertical drive shafts 7 and 17, respectively.
A cross pin 5 is rotatably pivotally attached to each of a and 16a, and the upper spindle 1 and the upper coupling 6, and the lower spindle 11 and the lower coupling 16 are connected to the cross pin 5a.
Are respectively linked by. The upper and lower universal joints 9 and 19 are configured by the vertical protrusions 1a, 11a, 6a, 16a and the cross pin 5. Three
Is an upper oval coupling and 13 is a lower oval coupling.
A cross pin 5 is rotatably and pivotally attached to 11a, and the upper spindle 1 and the upper oval coupling 3 and the lower spindle 11 and the lower oval coupling 13 are connected by the cross pin 5, respectively. The upper and lower universal joints 8 and 18 are constituted by the vertical protrusions 1a, 11a, 3a, 13a and the cross pin 5. Upper and Lower Oval Hole Couplings 3, 13 Upper and Lower Oval Holes 3
Upper work roll 2 and lower work roll 1 for b and 13b
Two upper and lower oval-shaped parts 2a and 12a are detachably inserted.

【0012】上ワークロール2と下ワークロール12と
をクロスさせ、上下駆動軸7,17によって、上下カッ
プリング6,16、上下自在継手8,9,18,19、
上下スピンドル1,11、上下小判穴カップリング3,
13を介して回転し、圧延材を圧延する。
The upper work roll 2 and the lower work roll 12 are crossed, and by the vertical drive shafts 7 and 17, the vertical couplings 6 and 16 and the vertical universal joints 8, 9, 18 and 19,
Upper and lower spindles 1, 11, upper and lower oval couplings 3,
The rolled material is rolled by rotating through 13.

【0013】このとき、上下小判穴カップリング3,1
3の上下突出部3a,13aの位相は小判穴位相から約
45°の角度でそれぞれずらしてあるので、上小判穴3
bと上突出部3aのクロスピン5枢着部との位相角度
と、下小判穴13bと下突出部13aのクロスピン5枢
着部との位相角度とはそれぞれほぼ同一になるので、上
小判穴3bの薄肉部と上突出部3aのクロスピン5枢着
部との接近による強度低下を避けることが可能になり、
上下小判穴カップリング3,13の強度はほぼ均等にな
る。
At this time, the upper and lower oval hole couplings 3, 1
Since the phases of the upper and lower protrusions 3a and 13a of 3 are shifted by an angle of about 45 ° from the oval phase, the upper oval 3
Since the phase angle between b and the pivot pin of the cross pin 5 of the upper protrusion 3a and the phase angle of the lower pin hole 13b and the pivot pin of the cross pin 5 of the lower protrusion 13a are substantially the same, the upper oval hole 3b It is possible to avoid a decrease in strength due to the proximity of the thin portion of the and the protruding portion 3a to the pivot pin 5 of the cross pin 5.
The strength of the upper and lower oval hole couplings 3 and 13 is substantially equal.

【0014】なお、双方の上自在継手8,9の上下方向
折れ角θ1は等しく、双方の下自在継手18,19の上
下方向折れ角θ2も等しいので、各々の上下自在継手
8,9,18,19で発生する角速度差は相殺され、こ
の折れ角θ1,θ2による上下ワークロール2,12間
の角速度差は発生しない。
The upper and lower universal joints 8 and 9 have the same vertical bending angle .theta.1 and the lower universal joints 18 and 19 have the same vertical bending angle .theta.2. , 19 cancel each other out, and the angular velocity difference between the upper and lower work rolls 2 and 12 due to the bending angles θ1 and θ2 does not occur.

【0015】[0015]

【発明の効果】本発明は上記のように構成されるので次
の効果を有する。
Since the present invention is constructed as described above, it has the following effects.

【0016】即ち、本発明によれば上下小判穴カップリ
ングのクロスピン枢着部位相を上下で互いに約90°の
角度でずらして設けたミルスピンドルにおいて、上小判
穴カップリングのクロスピン枢着部位相及び下小判穴カ
ップリングのクロスピン枢着部位相を上小判穴位相及び
下小判穴位相から約45°の角度でそれぞれずらして設
けたことにより、小判穴カップリングの小判穴薄肉部と
クロスピン枢着部との位相角度を上下でほぼ同一にする
ことができる。従って、上下小判穴カップリングの強度
を平均化することができるので、小判穴部の強度低下を
避けることができる。
That is, according to the present invention, in the mill spindle in which the phases of the cross pin pivot parts of the upper and lower oval couplings are vertically offset from each other by an angle of about 90 °, the cross pin pivot parts of the upper oval coupling are phased. And the cross pin pivot part of the lower oval coupling is shifted by about 45 ° from the upper oval phase and the lower oval phase, respectively. It is possible to make the phase angle with the upper and lower parts substantially the same. Therefore, since the strength of the upper and lower oval hole couplings can be averaged, it is possible to avoid a decrease in the strength of the oval hole portion.

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

【図1】本発明の一実施例のクロスロール圧延機のミル
スピンドルを示す側面図、
FIG. 1 is a side view showing a mill spindle of a cross roll rolling mill according to an embodiment of the present invention,

【図2】図1のII−II矢視断面図、2 is a sectional view taken along the line II-II of FIG.

【図3】従来の自在継手位相によるミルスピンドルと駆
動軸及びワークロールとの折れ角を示す平面図、
FIG. 3 is a plan view showing a bending angle between a mill spindle, a drive shaft, and a work roll according to a conventional universal joint phase;

【図4】従来のクロスロール圧延機のミルスピンドルを
示す上方破断側面図、
FIG. 4 is a side view of an upper cutaway view of a mill spindle of a conventional cross roll rolling mill;

【図5】図4のV−V矢視断面図である。5 is a cross-sectional view taken along the line VV of FIG.

【符号の説明】[Explanation of symbols]

1 上スピンドル 1a 上突出部 2 上ワークロール 2a 上小判型部 3 上小判穴カップリング 3a,6a 上突出部 3b 上小判穴 5 クロスピン 6 上カップリング 7 上駆動軸 8,9 上自在継手 11 下スピンドル 11a 下突出部 12 下ワークロール 12a 下小判型部 13 下小判穴カップリング 13a,16a 下突出部 13b 下小判穴 16 下カップリング 17 下駆動軸 18,19 下自在継手 1 Upper Spindle 1a Upper Projection 2 Upper Work Roll 2a Upper Oval Mold Part 3 Upper Oval Coupling 3a, 6a Upper Projection 3b Upper Oval Hole 5 Cross Pin 6 Upper Coupling 7 Upper Drive Shaft 8, 9 Upper Universal Joint 11 Lower Spindle 11a Lower protrusion 12 Lower work roll 12a Lower oval mold 13 Lower oval coupling 13a, 16a Lower protrusion 13b Lower oval 16 Lower coupling 17 Lower drive shaft 18, 19 Lower universal joint

───────────────────────────────────────────────────── フロントページの続き (72)発明者 西本 幸治 広島県広島市西区南観音六丁目4番31号 株式会社リョーセンエンジニアズ内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Nishimoto Ryosen Engineers Co., Ltd. 4-31 Minamikannon, Nishi-ku, Hiroshima City, Hiroshima Prefecture

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 互いにクロスさせた上下ワークロールと
上下ミルスピンドルとを上下クロスピン式自在継手及び
着脱自在な上下小判穴カップリングによって連結し、こ
の上下ミルスピンドルと上下駆動軸とを前記上下クロス
ピン式自在継手によって連結し、前記上下小判穴カップ
リングのクロスピン枢着部位相を上下で互いに約90°
の角度でずらせて設けたクロスロール圧延機において、
前記上小判穴カップリングのクロスピン枢着部位相及び
下小判穴カップリングのクロスピン枢着部位相を、前記
上小判穴カップリングの小判穴位相及び下小判穴カップ
リングの小判穴位相から約45°の角度でそれぞれずら
して設けたことを特徴とするクロスロール圧延機。
1. An upper and lower work roll and an upper and lower mill spindles which are crossed with each other are connected by an upper and lower cross pin type universal joint and a removable upper and lower oval hole coupling, and the upper and lower mill spindles and the upper and lower drive shafts are connected to the upper and lower cross pin type. Connected by a universal joint, the cross pin pivot parts of the upper and lower oval-hole couplings are vertically about 90 ° apart from each other.
In the cross roll rolling machine that is provided with the angle of
The phase of the cross pin pivot portion of the upper oval coupling and the phase of the cross pin pivot portion of the lower oval coupling are about 45 ° from the oval phase of the upper oval coupling and the oval phase of the lower oval coupling. The cross roll rolling machine is characterized in that they are provided at different angles.
JP5046994A 1994-03-22 1994-03-22 Cross roll mill Withdrawn JPH07256311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5046994A JPH07256311A (en) 1994-03-22 1994-03-22 Cross roll mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5046994A JPH07256311A (en) 1994-03-22 1994-03-22 Cross roll mill

Publications (1)

Publication Number Publication Date
JPH07256311A true JPH07256311A (en) 1995-10-09

Family

ID=12859754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5046994A Withdrawn JPH07256311A (en) 1994-03-22 1994-03-22 Cross roll mill

Country Status (1)

Country Link
JP (1) JPH07256311A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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EP2781274A1 (en) * 2013-03-21 2014-09-24 Jtekt Corporation Spindle unit for rolling mill
EP2835186A1 (en) * 2013-08-05 2015-02-11 Jtekt Corporation Spindle unit for rolling mill

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2781274A1 (en) * 2013-03-21 2014-09-24 Jtekt Corporation Spindle unit for rolling mill
CN104056861A (en) * 2013-03-21 2014-09-24 株式会社捷太格特 Spindle Unit For Rolling Mill
KR20140115985A (en) * 2013-03-21 2014-10-01 가부시키가이샤 제이텍트 Spindle unit for rolling mill
JP2014184440A (en) * 2013-03-21 2014-10-02 Jtekt Corp Spindle device for rolling mill
CN104056861B (en) * 2013-03-21 2017-05-31 株式会社捷太格特 Calender main shaft device
EP2835186A1 (en) * 2013-08-05 2015-02-11 Jtekt Corporation Spindle unit for rolling mill
CN104338751A (en) * 2013-08-05 2015-02-11 株式会社捷太格特 Spindle unit for rolling mill
JP2015030023A (en) * 2013-08-05 2015-02-16 株式会社ジェイテクト Spindle device for rolling machine

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