EP0200545A2 - Walzwerke - Google Patents

Walzwerke Download PDF

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Publication number
EP0200545A2
EP0200545A2 EP86303281A EP86303281A EP0200545A2 EP 0200545 A2 EP0200545 A2 EP 0200545A2 EP 86303281 A EP86303281 A EP 86303281A EP 86303281 A EP86303281 A EP 86303281A EP 0200545 A2 EP0200545 A2 EP 0200545A2
Authority
EP
European Patent Office
Prior art keywords
carriage
feet
combination
mill
supported
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.)
Granted
Application number
EP86303281A
Other languages
English (en)
French (fr)
Other versions
EP0200545A3 (en
EP0200545B1 (de
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/de
Publication of EP0200545A3 publication Critical patent/EP0200545A3/en
Application granted granted Critical
Publication of EP0200545B1 publication Critical patent/EP0200545B1/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
    • 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 are 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 most desirable that the track is at ground level.
  • the present invention resides in the combination of a rolling mill stand comprising a housing structure rotatably supporting a pair of mill rolls and a wheeled carriage having outwardly projecting feet located on opposite sides thereof at such positions that, with the carriage supported by the feet on a rigid foundation, the passline between the rolls is at a predetermined height relative to ground level and means for raising and lowering the carriage between the position where the carriage is supported on the feet and a position where the carriage is displaceable on its wheels along a track at ground level.
  • 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 and are positionable at different predetermined vertical positions on the carriage with respect to the passline.
  • the carriage may be provided with additional outwardly projecting feet on each of the opposite sides, the additional feet being at right angles to the first-mentioned feet and arranged such that the carriage can be positioned with said additional feet on the foundation and the passline between the rolls at said predetermined height relative to ground level.
  • 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 12 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)
EP19860303281 1985-04-30 1986-04-30 Walzwerke Expired EP0200545B1 (de)

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 true EP0200545A2 (de) 1986-11-05
EP0200545A3 EP0200545A3 (en) 1987-07-29
EP0200545B1 EP0200545B1 (de) 1990-07-04

Family

ID=10578446

Family Applications (1)

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

Country Status (3)

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

Citations (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
DE1955419U (de) * 1966-12-14 1967-02-16 Schloemann Ag Vorrichtung zum auswechseln der passplatten an walzgeruesten.
DE1261819B (de) * 1961-07-05 1968-02-29 Neumann Ohg Geruestueberbau fuer haengende Aufnahme von Walzgeruesten
FR1548770A (de) * 1967-12-01 1968-12-06
EP0002047A1 (de) * 1977-11-19 1979-05-30 Sms Schloemann-Siemag Aktiengesellschaft Walzgerüst, beispielsweise Universalwalzgerüst
GB2114929A (en) * 1982-02-17 1983-09-01 Innocenti Santeustacchio Spa Rolling stand with interchangeable operative units, particularly for a press-piercing mill

Patent Citations (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 (de) * 1967-12-01 1968-12-06
EP0002047A1 (de) * 1977-11-19 1979-05-30 Sms Schloemann-Siemag Aktiengesellschaft Walzgerüst, beispielsweise Universalwalzgerüst
GB2114929A (en) * 1982-02-17 1983-09-01 Innocenti Santeustacchio Spa Rolling stand with interchangeable operative units, particularly for a press-piercing mill

Also Published As

Publication number Publication date
GB8510977D0 (en) 1985-06-05
EP0200545A3 (en) 1987-07-29
DE3672384D1 (de) 1990-08-09
EP0200545B1 (de) 1990-07-04

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