EP0043315B1 - Rouleau tubulaire pour machine de coulée continue - Google Patents

Rouleau tubulaire pour machine de coulée continue Download PDF

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Publication number
EP0043315B1
EP0043315B1 EP81401004A EP81401004A EP0043315B1 EP 0043315 B1 EP0043315 B1 EP 0043315B1 EP 81401004 A EP81401004 A EP 81401004A EP 81401004 A EP81401004 A EP 81401004A EP 0043315 B1 EP0043315 B1 EP 0043315B1
Authority
EP
European Patent Office
Prior art keywords
roller
shaft
tubular
middle shaft
bearings
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
EP81401004A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0043315A1 (fr
Inventor
Jacques Michelet
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
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to AT81401004T priority Critical patent/ATE7669T1/de
Publication of EP0043315A1 publication Critical patent/EP0043315A1/fr
Application granted granted Critical
Publication of EP0043315B1 publication Critical patent/EP0043315B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/122—Accessories for subsequent treating or working cast stock in situ using magnetic fields

Definitions

  • the present invention relates to the continuous casting of metals, in particular steel, and relates more particularly to the rollers intended for supporting and guiding the product cast downstream of the mold.
  • rollers of this type are cylindrical bodies, of revolution about an axis perpendicular to the direction of casting and placed in contact with the product cast by one of their generatrices. They are movable in rotation by engaging at their ends in bearings with load-bearing bearings, integral with the frame of the machine.
  • rollers are full, but it is known to make use of tubular rollers whose available internal volume is used to place functional elements therein, for example an internal cooling system of the envelope in contact with the cast product. (DE-A? 1809471), or an elastic suspension mechanism allowing the envelope to follow the transverse fluctuations of the cast product (DE-B No 1082377), or an electromagnetic inductor ensuring mixing of the molten metal in the well solidification (G BA N o 1405312).
  • the roller generally comprises a central shaft fitted accordingly and engaging, by end pins, in support cradles where it is kept locked in rotation by keying or by any other suitable means.
  • the casing is mounted in free rotation on the shaft which it surrounds at a distance by any suitable means, such as ball bearings, allowing the desired kinematic uncoupling.
  • Rollers of this type therefore seem to be inadvisable because of the problems of mechanical resistance by fatigue which they may pose, in particular in the case of the continuous casting of products with a large section, such as slabs or even large blooms.
  • the object of the present invention is to propose a technological solution ensuring a kinematic decoupling between the rotating envelope and the fixed central shaft in order to allow both great availability of the interior volume of the roller while avoiding the support of the envelope. by the central tree.
  • the subject of the invention is a tubular roller for a continuous metal casting machine comprising a stationary central shaft, a cylindrical casing surrounding the shaft at a distance and in axial rotation in contact with the product cast by one of these generators, and two rolling bearings integral with the frame of the machine (DE-A No 1809471), roller characterized in that the casing has, at its ends, tubular rockets engaged in the bearings, in that the shaft central comprises cylindrical end parts mounted with clearance in the rockets and exceeding the limit thereof by spans resting on support cradles integral with the frame of the machine and in that means are provided at at least a cradle to block the rotation of the shaft.
  • the support cradles of the shaft are attached to the end faces of the bearings, beyond the bearings of the casing.
  • the end parts of the central shaft are of tubular structure to allow the passage of the internal cooling water of the roller and / or the electrical wiring when the shaft is equipped with an inductor electromagnetic.
  • the idea underlying the invention lies in the fact that, unlike the known solution, the static central shaft no longer constitutes an internal bearing supporting the rotating envelope, but the latter, being engaged at each of its reported ends in a conventional bearing fixed to the frame of the machine, is therefore mechanically and functionally independent of the central shaft.
  • the invention has many specific advantages linked to the mechanical autonomy of the envelope relative to the central shaft and to the way in which it achieves this autonomy.
  • the inner shaft is freed from the mechanical stresses transmitted by the envelope, itself subject to inevitable deformations due to the behavior of the cast product with which it is in contact (variations in the geometric profile of the product, swelling of the faces under the effect of ferrostatic pressure, especially noticeable in the case of products with a large cross-section, such as slabs, etc.).
  • roller can be made active in the extraction operation of the cast product.
  • This can indeed be achieved very simply by coupling a motor to an accessible part of a rocket between the casing and the corresponding bearing whereas, in known technology, only the central shaft is easily accessible at the level of its trunnions. However, by definition, the shaft must remain locked in rotation and cannot therefore be used for driving the envelope.
  • a casing 12 is attached to the cradle 10.
  • This casing has an opening 13 for the supply of cooling water and contains an electrical connection box shown diagrammatically at 14, from which a copper wiring 15 connecting inductor 4 after having formed a flexible loop 16.
  • the cradle 10 consists of an annular part attached to the end face of the bearing 5 beyond the bearings 6, 6 ', by means of assembly studs 17 passing through the bearing.
  • the cradle further comprises two central clearances 18 and 19.
  • an annular shim 20 for locking the bearings 6, 6 '.
  • This wedge fixed at the end of the spindle 8 by screws 21, is therefore driven in rotation by the casing and carries two seals: a seal 22 with four lips on its face facing the internal shoulder of the cradle with respect to to which it is rotating and a conventional O-ring 23 on the opposite face of the rocket 8.
  • the release 19 serves as a housing for a key 24 attached to the cradle 10 by a screw 25 and which ensures the rotation of the central shaft 3.
  • This key is in the form of a sector penetrating into a notch 26 machined on the terminal part 9. It can also be seen that this part 9 comprises, at the location of the clearance 19, an annular groove 42 in which is placed a stop cheek 27 which, by pressing on the cradle 10, ensures the longitudinal locking of the shaft 3 in the left-right direction in the figure, the locking in the opposite direction being, of course, obtained by the key 24 placed in abutment in the notch 26.
  • bearings 6 and 6 'of the bearing are separated by a spacer 36.
  • the annular shim or seal carrier part 20 is then fixed, which ensures both the locking of the bearings 6 and 6' opposite the shim 29 and the longitudinal positioning of the rocket-shell assembly.
  • the cradle 10 is introduced by sliding it over the bearing 11 of the shaft 3 protruding from the bearing and the cradle is brought back onto the bearing 5 by screwing the studs 17. It is observed that the cradle includes a borehole 30 for the lubrication of the bearings 6, 6 '.
  • the stop ring or cheek piece 27 is then successively installed, the key 24 by inserting the latter into the notch 26, then the support rods 31 around which the loop 16 is wound.
  • the plate 32 by means of hollow pins 33 which are fitted onto the ends of the rods 31.
  • the plate 32 is equipped with the connection box 14 and the connection with the cable 16 is made by means of the connection pad 34.
  • roller differs from that described here only by the absence of the key 24 and the ring 27, this in order to allow the free longitudinal expansion of the shaft.
  • the visible part of the rocket 8 namely the portion between the casing 1 and the bearing 5 may very well constitute a possible grip for the coupling of a motor for driving the roller. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Continuous Casting (AREA)
  • Transmission Devices (AREA)
  • General Induction Heating (AREA)
  • Moulding By Coating Moulds (AREA)
EP81401004A 1980-06-27 1981-06-22 Rouleau tubulaire pour machine de coulée continue Expired EP0043315B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81401004T ATE7669T1 (de) 1980-06-27 1981-06-22 Roehrenfoermige rolle fuer stranggiessanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8014487 1980-06-27
FR8014487A FR2485412A1 (fr) 1980-06-27 1980-06-27 Rouleau tubulaire pour machines de coulee continue

Publications (2)

Publication Number Publication Date
EP0043315A1 EP0043315A1 (fr) 1982-01-06
EP0043315B1 true EP0043315B1 (fr) 1984-05-30

Family

ID=9243653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401004A Expired EP0043315B1 (fr) 1980-06-27 1981-06-22 Rouleau tubulaire pour machine de coulée continue

Country Status (11)

Country Link
US (1) US4427051A (enrdf_load_stackoverflow)
EP (1) EP0043315B1 (enrdf_load_stackoverflow)
JP (1) JPS5785660A (enrdf_load_stackoverflow)
AT (1) ATE7669T1 (enrdf_load_stackoverflow)
AU (1) AU543923B2 (enrdf_load_stackoverflow)
BR (1) BR8104077A (enrdf_load_stackoverflow)
CA (1) CA1165090A (enrdf_load_stackoverflow)
DE (1) DE3163863D1 (enrdf_load_stackoverflow)
ES (1) ES8204931A1 (enrdf_load_stackoverflow)
FR (1) FR2485412A1 (enrdf_load_stackoverflow)
MX (1) MX153297A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720648C2 (de) 1997-05-16 2000-07-13 Mtu Muenchen Gmbh Bürstendichtung mit Front- und Stützplatte
DE19720649C2 (de) 1997-05-16 2000-09-28 Mtu Muenchen Gmbh Bürstendichtung
FR2957829B1 (fr) 2010-03-23 2012-11-09 Rotelec Sa Rouleau brasseur pour machine de coulee continu de brames
WO2013143557A1 (fr) 2012-03-27 2013-10-03 Rotelec Rouleau brasseur pour machine de coulée continue de produits métalliques à large section droite

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH102354A (de) * 1922-09-04 1923-11-16 Escher Wyss Maschf Ag Walze für Papier-, Textil- und ähnliche Maschinen.
DE1613181A1 (de) * 1967-07-14 1970-10-29 Klose Elektrotech Elektro-Getrieberolle
US3882923A (en) 1972-06-08 1975-05-13 Siderurgie Fse Inst Rech Apparatus for magnetic stirring of continuous castings
FR2237711A1 (en) * 1973-07-20 1975-02-14 Cem Comp Electro Mec Stirring molten cores of slabs in continuous casting - using induction coils housed in guide and support rolls
US3981348A (en) 1975-10-20 1976-09-21 Allis-Chalmers Corporation Support and lubrication system for continuous casting machine rollers
DE2844051C3 (de) * 1978-10-10 1982-01-28 Küsters, Eduard, 4150 Krefeld Verfahren zum Kühlen eines Walzenpaars sowie Kalander zur Durchführung des Verfahrens
US4351383A (en) 1980-04-10 1982-09-28 Gladwin Corporation Bearings for continuous casting roller aprons

Also Published As

Publication number Publication date
FR2485412B1 (enrdf_load_stackoverflow) 1983-11-10
EP0043315A1 (fr) 1982-01-06
ES503436A0 (es) 1982-05-16
CA1165090A (fr) 1984-04-10
JPS5785660A (en) 1982-05-28
ATE7669T1 (de) 1984-06-15
MX153297A (es) 1986-09-11
DE3163863D1 (en) 1984-07-05
BR8104077A (pt) 1982-03-16
FR2485412A1 (fr) 1981-12-31
ES8204931A1 (es) 1982-05-16
US4427051A (en) 1984-01-24
JPS6116221B2 (enrdf_load_stackoverflow) 1986-04-28
AU7243981A (en) 1982-01-07
AU543923B2 (en) 1985-05-09

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