EP0109323B1 - Verfahren für ein Planetenwalzwerk - Google Patents

Verfahren für ein Planetenwalzwerk Download PDF

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Publication number
EP0109323B1
EP0109323B1 EP19830402081 EP83402081A EP0109323B1 EP 0109323 B1 EP0109323 B1 EP 0109323B1 EP 19830402081 EP19830402081 EP 19830402081 EP 83402081 A EP83402081 A EP 83402081A EP 0109323 B1 EP0109323 B1 EP 0109323B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
product
contact
orbit
rolling
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.)
Expired
Application number
EP19830402081
Other languages
English (en)
French (fr)
Other versions
EP0109323A1 (de
Inventor
Bernard Fazan
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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Publication date
Application filed by Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Publication of EP0109323A1 publication Critical patent/EP0109323A1/de
Application granted granted Critical
Publication of EP0109323B1 publication Critical patent/EP0109323B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/42—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for step-by-step or planetary rolling
    • 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
    • B21B13/18—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills

Definitions

  • the present invention relates to a family of rolling methods in which the working rolls are movable in space and come into contact with the product periodically, over all or part of their trajectory.
  • Laminating plants built according to this principle are today well known under the name “planetary rolling mill” and have a particular design from a series of small horizontal working rolls, arranged in a “squirrel cage” rotating at great speed. speed around support rollers mounted in “duo on either side of the product.
  • the object of the present invention is to solve the problem of these repetitive shocks of the noise disturbances specific to the planetary rolling mill by means of a solution which does not have the drawbacks of the known methods.
  • the subject of the invention is a method of driving a planetary rolling mill according to which, the direction of rolling of the product to be laminated being assumed to be horizontal, the working cylinder is made to pass an orbit over a portion of which it is maintained in contact with the product to be rolled, the cylinder trajectory on said portion being in the form of an "S" horizontally, process characterized in that, the cylinder being able to traverse its orbit in one direction or the other, said trajectory is limited by two points (A and B) where the tangents (Ta and Tb) to the orbit are parallel to each other and to the direction of rolling of the product.
  • the portion 4 of this orbit the portion along which the cylinder 1 is in contact with the product 5, has a trajectory in the form of an "S" at the horizontal limited by two extreme points A and B where the tangents T A , T ⁇ at orbit 3 carried at these points are parallel to each other and parallel to the rolling direction of product 5, indicated by the arrow V in the figure and which, in practice, can generally be considered as perfectly horizontal.
  • the trajectory 4 advantageously has an inflection point 1 to ensure a regular displacement of the cylinder 1 between the extreme points A and B.
  • the trajectory of the cylinder 1 tangentially connects the surface of the product to be laminated 5 and there can therefore be no shock.
  • the cylinder is printed, when it comes into contact with the product, a speed of rotation equal to, or in any case close to, that which corresponds to the conditions of rolling of the cylinder on the product to be laminated (this being defined, therefore predeterminable as we know and as we know how to calculate it, from the speed of the product to be laminated, and the value and direction of the speed of the cylinder on its orbit upon contact with the product).
  • the working cylinder is rotated about its axis 2 under the effect of cissions which arise on contact with the rolled product.
  • Energy is supplied by the motors controlling the system which generates the movement of the cylinder in its orbit.
  • the shape of the horizontal “S” of the contact arc AB is such that this thrust force is minimal when the contact of the cylinder with the product 5 is established, which has the effect of minimizing the stresses on the thrust member imposing the law of advance of the product to be laminated.
  • the device ensuring the movement of the working rolls in an orbit 3 according to the invention is produced by combination of eccentrics and connecting rods, three different embodiments of which are shown in FIGS. 2, 3 and 4 respectively.
  • Figures 2 and 3 each illustrate a device designed to allow the working cylinder 1 to travel through its orbit 3 entirely in the same direction (direction indicated by the arrows).
  • the device represented in FIG. 2 essentially consists, as can be seen, of three connecting rods 21, 22 and 23, of three eccentrics 24, 25 and 26 and of a connecting rod 27.
  • Each connecting rod is articulated at one of its ends (respectively 28, 29, 30) to an eccentric (24, 25, 26).
  • the connecting rod 21 is fixed at its other end to the axis 2 of the working cylinder 1.
  • the other two connecting rods 22, 23 form at their end a rotary torque M and the rod 27 connects this mobile point M to the axis 2.
  • the trees of the three eccentrics rotate in the direction indicated by the arrows.
  • the rotational speeds are equal in absolute value, their ratios being kept fixed, for example by means of gears not shown in the figure.
  • One of the eccentrics is driven by a motor also not shown.
  • the axis 2 of the working cylinder traverses the contact arc AB from A to B by making contact with the product at A, this point constituting a cusp point (type 0 variant).
  • the device shown in Figure 3 comprises only two connecting rods 31, 32 and two eccentrics 33, 34.
  • the connecting rod 31 is connected to the axis 2 of the working cylinder and is extended beyond its point of articulation 35 on the eccentric 34 to a movable point N forming a couple with the connecting rod 32 at its end opposite to that of its attachment 36 on the eccentric 33.
  • the two eccentrics rotate in opposite directions, as indicated by the arrows, the the rest being unchanged compared to the device described with reference to FIG. 3.
  • the axis 2 of the cylinder 1 traverses the working arc AB from A to B by contacting the product at A, this point constituting a point of inflection (variant of type (S)).
  • the device shown in Figure 4 is similar to that of Figure 2. There are, according to the same organization, a set of three connecting rods 41, 42, 43 and three eccentrics 44, 45, 46, a connecting rod 47 and the joints 48, 49, 50 between the eccentrics and the connecting rods, as well as the movable point M connecting the connecting rods 42, 43 and the rod 47 in a common torque.
  • one of the eccentrics in this case the eccentric 46 in the example shown, is driven in an alternating rotational movement less than one revolution, by a fourth eccentric 51 using an additional connecting rod 52, the eccentric shaft 53 being driven in continuous rotation by a motor.
  • the axis 2 of the working cylinder 1 traverses the working arc AB alternately from A to B then from B to A (rolling by "going up in the latter case) and the cylinder therefore remains permanently in contact with the laminate 5.

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

Claims (5)

1. Verfahren zum Betrieb eines Planetenwalzwerks, bei dem die Richtung des zu walzenden Gegenstandes (5) als waagrecht angenommen wird, wobei die Arbeitswalze (1) eine Bahn (3) durchläuft entlang der sie über einen Abschnitt (4) mit dem zu walzenden Gegenstand in Berührung steht und wobei der von der Walze beschriebene Weg über diesen Abschnitt die Form eines waagrechten « S aufweist, dadurch gekennzeichnet, daß dieser Weg, entlang dem die Walze ihre Bahn (3) in beide Richtungen durchlaufen kann, von zwei Punkten A und B begrenzt ist, an denen die Tangenten Ta und Tb an die Bahn (3) parallel zueinander und zur Walzenrichtung des Gegenstandes sind.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Punkt A oder B des Abschnitts (4), an dem die Walze (1) mit dem zu walzenden Gegenstand (5) in Berührung gelangt, ein Wendepunkt der Verschiebungsbahn (3) der Walze ist.
3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Punkt A oder B des Abschnitts (4), an dem die Walze (1) mit dem zu walzenden Gegenstand (5) in Berührung gelangt, ein Haltepunkt der Verschiebungsbahn (3) der Walze ist.
4. Verfahren nach Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, daß der Wegabschnitt (4) zwischen seinen beiden aüßersten Punkten A und B einen Wendepunkt I aufweist.
5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Walze (1) zum Zeitpunkt ihrer Berührung mit dem zu walzenden Gegenstand (5) eine Rotationsgeschwindigkeit um ihre Achse (2) erteilt wird, die gleich oder im wesentlichen gleich derjenigen ist, die den Walzbedingungen der Walze entlang des Gegenstandes während des Walzens entspricht.
EP19830402081 1982-11-08 1983-10-26 Verfahren für ein Planetenwalzwerk Expired EP0109323B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8218840A FR2535628B1 (fr) 1982-11-08 1982-11-08 Procede de conduite d'un laminoir planetaire et dispositif de mise en oeuvre
FR8218840 1982-11-08

Publications (2)

Publication Number Publication Date
EP0109323A1 EP0109323A1 (de) 1984-05-23
EP0109323B1 true EP0109323B1 (de) 1988-05-04

Family

ID=9279062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830402081 Expired EP0109323B1 (de) 1982-11-08 1983-10-26 Verfahren für ein Planetenwalzwerk

Country Status (4)

Country Link
EP (1) EP0109323B1 (de)
JP (1) JPS5997704A (de)
DE (1) DE3376470D1 (de)
FR (1) FR2535628B1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978933A (en) * 1958-03-05 1961-04-11 Sendzimir Tadeusz Beambacked planetary rolling mill
AT293988B (de) * 1967-06-23 1971-11-10 Demag Ag Verfahren und Vorrichtung zum Streckverformen eines Metall-, insbesondere Stahlstranges
US3908422A (en) * 1973-11-13 1975-09-30 Alexandr Ivanovich Tselikov Planetary rolling mill

Also Published As

Publication number Publication date
JPS5997704A (ja) 1984-06-05
FR2535628B1 (fr) 1985-06-21
FR2535628A1 (fr) 1984-05-11
DE3376470D1 (en) 1988-06-09
EP0109323A1 (de) 1984-05-23

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