DE2055182A1 - Four pillar roll stand design characteristics - for maximum rigidity - Google Patents

Four pillar roll stand design characteristics - for maximum rigidity

Info

Publication number
DE2055182A1
DE2055182A1 DE19702055182 DE2055182A DE2055182A1 DE 2055182 A1 DE2055182 A1 DE 2055182A1 DE 19702055182 DE19702055182 DE 19702055182 DE 2055182 A DE2055182 A DE 2055182A DE 2055182 A1 DE2055182 A1 DE 2055182A1
Authority
DE
Germany
Prior art keywords
roll stand
pillars
head
design characteristics
maximum rigidity
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
DE19702055182
Other languages
German (de)
Inventor
Rudolf Dr.-Ing. 5840 Schwerte. P Wurzbach
Original Assignee
Grah-Beteiligungsgesellschaft Mbh, 5870 Hemer
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 Grah-Beteiligungsgesellschaft Mbh, 5870 Hemer filed Critical Grah-Beteiligungsgesellschaft Mbh, 5870 Hemer
Priority to DE19702055182 priority Critical patent/DE2055182A1/en
Publication of DE2055182A1 publication Critical patent/DE2055182A1/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
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B31/04—Rolling stand frames or housings; Roll mountings ; Roll chocks with tie rods in frameless stands, e.g. prestressed tie rods
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • 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
    • B21B13/147—Cluster 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
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/028—Sixto, six-high stands

Landscapes

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

Abstract

In a rolling mill stand comprising 4 pillars which are connected at the top and bottom by four thick plates, the lengths of the pillars is = the distance between the axes of the pillars. The cross section is approx 1/0.001 to 1/0.004 of the required total rolling force. A mill stand having the above design characteristics is considerably more rigid than those designed to conventional design rules.

Description

Viersäulenwalzgerüst Die Erfindung betrifft ein Walzgerüst mit vier Säulen, die durch dicke Platten als Kopf- bzw. FuRteil miteinander verbunden sind. Four-column rolling stand The invention relates to a rolling stand with four Columns that are connected to one another by thick plates as a head or foot section.

Es sind Walzgerüste bekannt, die statt der üblichen, mit Traversen verbundenen Ständer, vier Säulen besitzen, die durch dicke Platten als Kopf- bzw. Fußteil miteinander verbunden sind, wobei das Kopfteil längs der Säulen verschiebbar und feststellbar ist, um die Walzen schnell wechseln und Walzen verschiedener Durchmesser verwenden zu können.Roll stands are known which, instead of the usual ones, have traverses connected stands, have four pillars, which are supported by thick plates as head or Foot part are connected to one another, the head part being displaceable along the columns and lockable to quickly change the rollers and rollers of different diameters to be able to use.

Bei derartigen Walzgerüsten zeigte es sich, daß das Walzgut Dickenschwankungen in der Längserstreckung aufwies, die strengeren Anforderungen nicht gerecht wurden. Ferner wurden Dickenschwankungen des Vormaterials nicht genügend ausgeglichen.In the case of rolling stands of this type, it has been found that the rolling stock fluctuates in thickness in the longitudinal extension that did not meet the stricter requirements. In addition, fluctuations in the thickness of the raw material were not sufficiently compensated for.

Die Maßhaltigkeit des Walzgutes über Breite und Länge ist direkt von der Größe der Federkonstante des Gerüstes abhängig. Durch eine massivere Bauart des Walzgerüstes läßt sich die Federkonstante erhöhen. Dem sind aber Grenzen gesetzt, da die Walzgerüstsäulen eine bestimmte Dicke nicht überschreiten dürfen, um genügend Platz zum Ein- und Ausbau der Walzen zu lassen. Außerdem ist eine wesentlich massivere Bauart unökonomisch.The dimensional accuracy of the rolled stock across the width and length is directly from depends on the size of the spring constant of the framework. With a more massive construction of the roll stand the spring constant can be increased. But there are limits to this, since the roll stand columns must not exceed a certain thickness in order to be sufficient Leave space to install and remove the rollers. In addition, it is a much more massive one Uneconomical design.

Der Erfindung liegt die Aufgabe zugrunde, die Federkonstante eines Walzgerüstes der obigen Art zu verbessern, ohne es gleichzeitig massiver auszulegen.The invention is based on the object, the spring constant of a To improve the rolling stand of the above type without laying it out more massive at the same time.

Erfindungsgemäß ist bei einem Walzgerüst der obigen Art die Länge der Säulen gleich oder kleiner als die abstände der Säulen, der Querschnitt (in mm2) einer Säule etwa 1/0,001 bis 1/0,004 der beanspruchten Gesamtwalzkraft (in t), und das Verhältnis der Trägheitsmomente der Säulen zu denen des Kopf- bzw. Fußteiles etwa 0,05 bis 0,005.According to the invention, in a roll stand of the above type, the length of the columns is equal to or less than that Distance between the columns, the cross-section (in mm2) of a column about 1 / 0.001 to 1 / 0.004 of the total rolling force claimed (in t), and the ratio of the moments of inertia of the columns to those of the head or foot section about 0.05 to 0.005.

Dabei kann das Kopf- und/oder Fußteil als Schweißteil ausgebildet sein.The head and / or foot part can be designed as a welded part be.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown schematically in the drawing and is described in more detail below.

Das Walzgerüst mit der Walzrichtung W besitzt vier Säulen 1, die durch dicke Platten als Kopfteil 3 und Fußteil 2 miteinander verbunden sind. Während das Fußteil 2 mit den Säulen 1 fest verbunden ist, kann das Kopfteil 3 längs der Säulen 1 verschiebbar und feststellbar sein. Kopf-und Fußteil sind entsprechend den Erfordernissen der Walzgerüstarten, z.B. Duo-, Quarto-, Sechso-, Vielrollenwalzgerüst, ausgebildet. Dabei sind die Querschnittsflächen (F2, F3) und Querschnittsflächenträgheitsmomente (J2, J3) des Kopf- und Fußteiles F2 : b /2 . h2 bzw. F3 : h3 und J2 = F2 # h22/ 12 bzw. J3 = F3 # h32 / 12.The roll stand with the rolling direction W has four columns 1, which by thick plates as head part 3 and foot part 2 are connected to one another. While that Foot part 2 is firmly connected to the pillars 1, the head part 3 can be along the pillars 1 be slidable and lockable. Head and foot sections are according to the requirements of the roll stand types, e.g. two-high, four-high, six-high, multi-roll mill stands. The cross-sectional areas (F2, F3) and cross-sectional area are moments of inertia (J2, J3) of the head and foot section F2: b / 2. h2 or F3: h3 and J2 = F2 # h22 / 12 or J3 = F3 # h32 / 12.

2 3 Bei einem entsprechend der Erfindung gebauten Walzgerüst ergaben sich bei einer Walzk-raftschwankung # Pw = 8,8 t für eine Federkonstante des Gerüstes c1 = 200 timm eine Dickenschwankung des Walzgutes # h1 = 0,044 mm und bei einer Federkonstante von c2 = 94,3 t/mm eine Dickenschwankung des Walzgutes #h2 = 0,093 mm. Den Messungen lag dabei als Walzgutwerkstoff MS 63 (Messing) zugrunde. 2 3 for a roll stand built according to the invention with a rolling force fluctuation # Pw = 8.8 t for a spring constant of the stand c1 = 200 do one Thickness fluctuation of the rolled stock # h1 = 0.044 mm and with a spring constant of c2 = 94.3 t / mm there is a fluctuation in the thickness of the rolled stock # h2 = 0.093 mm. The measurements were based on the rolled material MS 63 (brass).

Patentansprüche/Patent claims /

Claims (2)

Patentansprüche: 1.) Walzgerüst mit vier Säulen, die durch dicke Platten als Kopf- bzw. Fußteil miteinander verbunden sind, dadurch gekennzeichnet, daß die Länge der Säulen (11) gleich oder kleiner als die Mittenabstände der Säulen (12) ist, der Querschnitt (F1 in mm2) einer Säule etwa 1/0,001 bis 1/0,004 der beanspruchten Gesamtwalzkraft (Pwges in t) ist, und das Verhältnis der Trägheitsmomente der Säulen (J1) zu denen des Kopf- bzw. Fußteils (J3 bzw. J2) etwa 0,05 bis 0,005 ist. Claims: 1.) Roll stand with four columns that are thick Plates are connected to one another as a head or foot part, characterized in that that the length of the pillars (11) is equal to or less than the center-to-center spacing of the pillars (12), the cross-section (F1 in mm2) of a column is about 1 / 0.001 to 1 / 0.004 that of the claimed Total rolling force (Pwges in t) and the ratio of the moments of inertia of the pillars (J1) to those of the head and foot part (J3 and J2) is about 0.05 to 0.005. 2. Walzgerüst nach Anspruch 1, dadurch gekennzeichnet, daß Kopf- und/oder Fußteil (J3, J2) als Schweißteile ausgebildet sind.2. Roll stand according to claim 1, characterized in that the head and / or Foot part (J3, J2) are designed as welded parts.
DE19702055182 1970-11-10 1970-11-10 Four pillar roll stand design characteristics - for maximum rigidity Pending DE2055182A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702055182 DE2055182A1 (en) 1970-11-10 1970-11-10 Four pillar roll stand design characteristics - for maximum rigidity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702055182 DE2055182A1 (en) 1970-11-10 1970-11-10 Four pillar roll stand design characteristics - for maximum rigidity

Publications (1)

Publication Number Publication Date
DE2055182A1 true DE2055182A1 (en) 1972-05-25

Family

ID=5787652

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702055182 Pending DE2055182A1 (en) 1970-11-10 1970-11-10 Four pillar roll stand design characteristics - for maximum rigidity

Country Status (1)

Country Link
DE (1) DE2055182A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0916417A2 (en) * 1997-11-11 1999-05-19 Mitsubishi Heavy Industries, Ltd. Housingless rolling mill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0916417A2 (en) * 1997-11-11 1999-05-19 Mitsubishi Heavy Industries, Ltd. Housingless rolling mill
EP0916417A3 (en) * 1997-11-11 2001-05-02 Mitsubishi Heavy Industries, Ltd. Housingless rolling mill

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