EP0200545B1 - Laminoirs - Google Patents

Laminoirs Download PDF

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Publication number
EP0200545B1
EP0200545B1 EP19860303281 EP86303281A EP0200545B1 EP 0200545 B1 EP0200545 B1 EP 0200545B1 EP 19860303281 EP19860303281 EP 19860303281 EP 86303281 A EP86303281 A EP 86303281A EP 0200545 B1 EP0200545 B1 EP 0200545B1
Authority
EP
European Patent Office
Prior art keywords
carriage
stand
wheels
supported
rolling mill
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
EP19860303281
Other languages
German (de)
English (en)
Other versions
EP0200545A2 (fr
EP0200545A3 (en
Inventor
Alexander Ian Wilson
Dennis Stubbs
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.)
Hille Engineering Co Ltd
Original Assignee
Hille Engineering Co 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 Hille Engineering Co Ltd filed Critical Hille Engineering Co Ltd
Publication of EP0200545A2 publication Critical patent/EP0200545A2/fr
Publication of EP0200545A3 publication Critical patent/EP0200545A3/en
Application granted granted Critical
Publication of EP0200545B1 publication Critical patent/EP0200545B1/fr
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
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
    • 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
    • B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
    • 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
    • B21B2031/026—Transverse shifting the stand

Definitions

  • This invention relates to rolling mill stands, particularly mill stands for rolling rod and bar sections.
  • a mill line It is usual for a mill line to include some stands with vertical rolls, some stands with horizontal rolls and some stands have both horizontal and vertical rolls but it is most important that the passline for all the stands arranged in tandem in the mill line is fixed at a predetermined height relative to ground level.
  • the stands should be displaceable on their own wheels into and out of the mill line since this simplifies and speeds up the mill stand change procedure. It is usual for the wheels to run along a track and it is most desirable that the track is at ground level.
  • a rolling mill stand It is known from DE-C-1075079 for a rolling mill stand to be provided with wheels. When the stand is rolling metal it is firmly mounted with its base supported on a rigid foundation and with its wheels spaced from the foundation. When it is necessary to remove the stand from the rolling position, rails are positioned beneath the wheels and the rails are lifted into engagement with the wheels to lift the stand from the foundation and allow it to be displaced along the rails.
  • a rolling mill stand supported on wheels and means for raising and lowering the stand between a first position where the stand is supported on a rigid foundation and the passline between the mill rolls is at a predetermined height relative to ground level and a second position where the stand is displaceable on said wheels along a track at ground level, characterised in that the rolling mill stand is supported on a carriage which has outwardly projecting feet located on opposite sides of the carriage and on which the carriage is supported on the foundation in the first position, said feet being positionable at different predetermined vertical positions with respect to the passline and a set of wheels on which the carriage is displaceable along the track in the second position.
  • the mill stand can be supported on a rigid foundation when the mill is rolling metal and this is far superior to having the stand supported on the carriage wheels when it is rolling metal.
  • the feet are removably mounted on the carriage so that they are positionable at different predetermined vertical positions on the carriage with respect to the passline.
  • a rolling mill stand 1 forming part of a bar mill has a pair of horizontal rolls 2 rotatably supported in housings 3.
  • the housings are permanently supported on a carriage 4 which includes two pairs of wheels 5 which enable the carriage, including the housings and the rolls, to be displaced in the direction of the length of the rolls.
  • the rolls are driven by spindles 7 connected to the roll ends through couplings 8.
  • FIG 2 shows a similar form of mill stand, except that the stand is provided with a universal attachment 11 to enable H-section beams to be rolled.
  • the feet 9 have been re-fitted to the side wall of the carriage at a rather higher level with respect to the wheels 5 than is the case with the stand shown in Figure 1.
  • the arrangement of the feet 9 in the two embodiments is such that, whichever mill stand is supported with its feet on the rigid foundation, the passline between the rolls in the stand will be at the same predetermined vertical height above ground level.
  • each side of the carriage 4 there is a hydraulically operated clamping device 12 mounted on a foundation 13.
  • This foundation defines a pit carrying a pair of vertically displaceable rails 15.
  • the rails are mounted on bell crank levers 16 operable by a piston-cylinder device 17 which, on being actuated, pivots the bell crank levers to raise and lower the rails 15.
  • the stands When the stands are in use, they are supported from their foundation with their feet 9 resting on the foundation. The stand is displaced until the clamping mechanisms 12 are aligned with, and project into, one of the slots 10 on each side of the stand to locate the stand rigidly in position.
  • the position of the feet 9 is such that, when the rails 15 are lowered to cause the feet 9 to rest on the foundation, the clamping mechanism is in line with the lower of the two slots 10, as shown in Figure 3.
  • the feet 9 are positioned on the carriage such that, when the feet are supported on the foundation, the clamping mechanism is in line with the upper of the two slots 10.
  • Figure 4 shows a carriage which can support rolls which are either horizontal or vertical.
  • the carriage 20 has a first set of feet 28 projecting from a pair of opposite side walls at such a position that, when the carriage is supported with these feet on the foundation, the passline of the rolls supported by the carriage is at the correct height.
  • a plate 25 provides a socket 23 for receiving the clamping mechanism.
  • a further plate 25 defines a socket 23 for receiving the clamping mechanism.
  • the carriage is provided with two sets of wheels 21, 26 with the wheels arranged such that they can be lifted by the rails 15 to ground level to enable the carriage to be withdrawn from the mill train along tracks positioned at ground level.
  • a track 40 extending away from the mill at right angles thereto.
  • This track can be horizontal and the mill stands can be raised or lowered on to the lifting rails 15 until the wheels on the stands can be rolled on to the tracks 40 to enable the stands to be displaced along the track.
  • a duplex roll change carriage 44 which is displaceable in the direction at right angles to the length of the tracks 40.
  • a winch is used to draw the mill stand along the track 40 and on to the duplex carriage, the carriage then being displaceable along its track until the second position is in line with the track 40 and a replacement mill stand, which has previously been mounted on the carriage, is displaced along the track into the rolling mill.
  • the track may be inclined upwardly from the rolling mill to the duplex carriage so that a replacement stand on the carriage can be returned by gravity down the track into the rolling mill.
  • the floor plates 46 on the side of the mill which support the track 40 may be inclined temporarily in order to form a smooth incline between the mill and the duplex carriage.
  • the tracks are inclined, it is convenient to provide wheels on the carriages at different levels so that, as the carriage moves along the inclined track, the support surfaces of the carriage which support the mill stand remain horizontal.

Landscapes

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

Claims (7)

1. Cage de laminoir (1) montée sur des roues (5, 25) et comportant des moyens pour la faire monter et descendre entre une première position dans laquelle ladite cage est supportée sur des fondations rigides et où la droite passant entre les cylindres (2) est à une hauteur prédéterminée par rapport au niveau du sol, et une seconde position dans laquelle la cage peut être déplacée sur lesdites roues (5, 26) le long d'une voie située au niveau du sol, caractérisée en ce que la cage est montée sur un chariot (4) comportant, de part et d'autre, des pieds (9, 28) s'avançant à l'extérieur et qui le supportent sur les fondations dans la première position, lesdits pieds pouvant être placés à plusieurs positions verticales prédéterminées par rapport à la droite précitée, et un train de roues (5, 26) sur lesquelles le chariot peut se déplacer le long de la voie.
2. Cage de laminoir selon la revendication 1, caractérisée par la prévision de pieds supplémentaires s'avançant à l'extérieur (22) sur chacun desdits côtés opposés et qui sont arrangés de manière que, en faisant tourner le chariot de 90°, ce dernier peut être placés sur les fondations avec lesdits pieds supplémentaires (22), tandis que la droite passant entre les cylindres du laminoir est à ladite hauteur prédéterminée par rapport au niveau du sol.
3. Cage de laminoir selon la revendication 2, caractérisée en ce que le chariot a des roues supplémentaires (21) arrangées pour le supporter dans une position à angle droit par rapport à celle dans laquelle il est supporté par les premières roues (26).
4. Cage de laminoir selon la revendication 1, 2 ou 3, caractérisée en ce que les moyens pour élever et abaisser le chariot sont constitués par un groupe de rails (15) pouvant contacter les roues (5, 26) ou les roues supplémentaires (21), et un dispositif à piston et cylindre (17) qui élève et abaisse ledit groupe de rails.
5. Cage de laminoir selon la revendication 4, caractérisée en ce que ledit dispositif à piston et cylindre est relié aux rails par des leviers coudés (16).
6. Cage de laminoir selon l'une quelconque des revendications précédentes, caractérisée en ce que le chariot comporte sur chacun desdits côtés une gâche ou une douille (10, 23) pour recevoir un verrou (12) destiné à positionner le chariot quand celui-ci est supporté sur les fondations rigides par les pieds.
7. Cage de laminoir selon l'une quelconque des revendications précédentes, caractérisée en ce que pour chaque position verticale prédéterminée est prévue une gâche ou une douille (23) pour recevoir ledit verrou.
EP19860303281 1985-04-30 1986-04-30 Laminoirs Expired EP0200545B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858510977A GB8510977D0 (en) 1985-04-30 1985-04-30 Rolling mills
GB8510977 1985-04-30

Publications (3)

Publication Number Publication Date
EP0200545A2 EP0200545A2 (fr) 1986-11-05
EP0200545A3 EP0200545A3 (en) 1987-07-29
EP0200545B1 true EP0200545B1 (fr) 1990-07-04

Family

ID=10578446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860303281 Expired EP0200545B1 (fr) 1985-04-30 1986-04-30 Laminoirs

Country Status (3)

Country Link
EP (1) EP0200545B1 (fr)
DE (1) DE3672384D1 (fr)
GB (1) GB8510977D0 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115958066A (zh) * 2022-12-20 2023-04-14 二重（德阳）重型装备有限公司 一种轧机换辊装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1045952B (de) * 1953-02-03 1958-12-11 Moeller & Neumann Gmbh Vertikalwalzengeruest
DE1261819B (de) * 1961-07-05 1968-02-29 Neumann Ohg Geruestueberbau fuer haengende Aufnahme von Walzgeruesten
DE1955419U (de) * 1966-12-14 1967-02-16 Schloemann Ag Vorrichtung zum auswechseln der passplatten an walzgeruesten.
FR1548770A (fr) * 1967-12-01 1968-12-06
DE2751819A1 (de) * 1977-11-19 1979-05-23 Schloemann Siemag Ag Walzgeruest, beispielsweise universalwalzgeruest
IT1149767B (it) * 1982-02-17 1986-12-10 Innocenti Santeustacchio Spa Gabbia di laminazione con unita' operativa intercambiabile,particolarmente per laminatoio presso-perforatore

Also Published As

Publication number Publication date
EP0200545A2 (fr) 1986-11-05
GB8510977D0 (en) 1985-06-05
DE3672384D1 (de) 1990-08-09
EP0200545A3 (en) 1987-07-29

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