US3391562A - Rolling mills - Google Patents

Rolling mills Download PDF

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Publication number
US3391562A
US3391562A US523427A US52342766A US3391562A US 3391562 A US3391562 A US 3391562A US 523427 A US523427 A US 523427A US 52342766 A US52342766 A US 52342766A US 3391562 A US3391562 A US 3391562A
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US
United States
Prior art keywords
roll
rolls
pair
pairs
axes
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 - Lifetime
Application number
US523427A
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English (en)
Inventor
Sturdy Clifford
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.)
Davy Loewy Ltd
Original Assignee
Davy Loewy 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 Davy Loewy Ltd filed Critical Davy Loewy Ltd
Application granted granted Critical
Publication of US3391562A publication Critical patent/US3391562A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • 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
    • B21B1/16—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 rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—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 rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process

Definitions

  • the invention provides a train comprising a plurality of adjacent stands each having a plurality of pairs of rolls one pair for each strand to be rolled.
  • the axes of adjacent pairs of rolls make an angle with one another, and the axes of the roll pairs of adjacent stands which act on the same strand make an angle with one another.
  • This arrangement allows a single gear box -for each stand to drive at least two pairs of rolls and in the preferred embodiment for rolling four parallel strands, only three 'line shafts and three sets of gear boxes are required.
  • This invention relates to rolling mill trains and particularly, though not exclusively, to rolling mill trains for the multi-s-trand rolling of metallic rod.
  • a single strand rolling mill train has all its rolls mounted in a cantilever manner on shafts driven from a plurality of gear boxes, alternate gear boxes being driven by a line shaft coupled to them.
  • two line shafts are required for this arrangement which provides for rolling only a single strand at one time.
  • the present invention provides a rolling mill train for the simultaneous rolling of at least two strands of metallic rod, in which train one pair of cooperating work rolls is provided for each strands at each stand, and the axes of alternate roll pairs for each strand are arranged in a parallel plane but at an angle to the axes of the preceding roll pair, the drive for all the rolls being provided by three line shafts, or in the case of rolling two strands by the line shafts, through a plurality of gear boxes.
  • the axes of each roll pair may be arranged at to the axes of the preceding roll pair.
  • the present invention provides a rolling mill train for the simultaneous rolling of at least two strands of metallic rod, in which train one pair of cooperating work rolls is provided for each strand at each stand, and the axes of alternate roll pairs for each strand are arranged in a parallel plane but at an angle to the axes of the preceding roll pair, at least one roll pair from each train being driven from a common gear box.
  • the present invention provides a rolling mill train for the simultaneous rolling of at least two strands of metallic rod, in which train one pair of co-operating work rolls is provided for each strands at each stand, and the axes of alternate roll pairs for each strand are arranged in a parallel plane but at an angle to the axes of the preceding roll pair, and in which train alternate roll pairs for each strands are driven from a first series of gear boxes arranged in line, the remaining roll pairs being driven from a second series of individual gear boxes.
  • the individual gear boxes may be arranged in tow lines one on each side of the first series.
  • Each of the rolls in each roll pair may be driven from a pair of intermeshing pinions in its driving gear box, in
  • the invention provides a rolling mill train for the simultaneous rolling of four strands of metallic rod, in which train one pair of co-operating work rolls is provided for each strand at each stand, and the axes of alternate roll pairs for each strand are arranged in a parallel plane but at an angle to the axes of the preceding roll pair, and in which train alternate r-oll pairs for each strand are driven from a first series of gear boxes arranged in line, the remaining roll pairs being driven from a second series of gear boxes arranged in two lines one on each side of the first series, the roll pairs for each strand being arranged in two pairs one pair on each side of the series of gear boxes.
  • the rolls themselves are preferably secured to a shaft mounted in a cantilever manner in the rolling mill housing, so that roll changing is greatly facilitated.
  • FIGURE 1 shows the arrangement for driving the eight adjacent roll pairs of two adjacent stands in the train
  • roll pairs 11, 12, 13 and 14 of one roll stand are arranged in a common plane approximately at the corners of a square, pairs 11 and 12 having their axes normal to one another being driven from an upper gear box 15 by drive shafts 16 and 17 respectively, and pairs 13 and 14 having their axes normal to one another 3 being driven from a lower gear box 18 by drive shafts 19 and 20 respectively.
  • Roll pairs 21, 22, 23 and 24 of a second adjacent roll stand are also arranged in a common plane at the corners of the same square, adjacent roll pairs having their axes at right angles to one another, and are driven from a common central gear box 25 at the center of the square by drive shafts 26, 27, 28 and 29 respectively. It will be seen that, for each strand, the axes of each roll pair of one stand are at 90 to the axes of the roll pairs of the other stand.
  • Each gear box has a pair of intermeshing mill pinions 30 for each pair of drive shafts, one of these pinions being driven by a bevel gear 31 engaging with a larger bevel gear 32, which is driven by a line shaft, not shown.
  • the line shafts are driven from a pinion stand such as shown in FIGURE 2, which has line shaft pinions 33, 34 and 35 with interrneshing idling gears 36.
  • the center line shaft pinion 34 is driven by a suitable motor not shown.
  • the mill train described rolls four strands each of which is rolled by eight roll pairs so that the arrangement shown in FIGURE 1 will be repeated four times, the four gear boxes 25 driving the roll pairs of stands 1, 3, 5 and 7 in each train, the four gear boxes 15 driving roll pairs of stands 2, 4, 6 and 8 rolling the two upper strands, and four gear boxes 18 driving roll pairs of stands 2, 4, 6 and 8 rolling the two lower strands.
  • the drive shafts 16, 17, 19, 20, 26, 27, 28 and 29 are provided with suitable flexible couplings not shown.
  • each roll pair is necessarily displaced from the axis of the mill pinions 30 driven by the bevels 31. Because of this, in order to make the length of drive shafts necessary for each roll pair equal, the gear boxes 15 and 18 are displaced to the left and right respectively from the plane of the gear box 25, and the center roll-pass of each upper strand is displaced to the left a similar amount.
  • a rolling mill train comprising first and second adjacent rolling mill stands, each stand having four pairs of rolls, each pair in each stand being positioned to roll a different one of four parallel strands of rod, the rolls of each pair having parallel axes which are at an angle to the axes of the adjacent pairs in the same stand, and to the axes of those roll pairs of adjacent stands positioned to roll the same strand, said first stand having a first gear box connected to drive all the rolls of said first stand and the second stand having second and third gear boxes, each connected to drive two pairs of rolls in said second stand.
  • a rolling mill train as claimed in claim 1 comprising at least two of said first stands and two of said second stands with said first and second stands positioned alternately with respect to each other, with said first, second and third gear boxes respectively positioned in first, second and third lines parallel to the rod strands.
  • a rolling mill train as claimed in claim 2 in which the lines in which the second and third gear boxes are positioned lie on opposite sides of a vertical plane containing the line of said first gear boxes and bisecting the angle between the driveshafts driven from said first gear boxes.
  • a rolling mill train according to claim 1 in which the gear boxes are arranged so that the distance between any gear box and the rolls it drives is uniform.
  • a rolling mill train according to claim 1 in which each roll is secured to a shaft mounted in a cantilever manner.
  • a rolling mill train according to claim 1 wherein the axes of each roll pair are arranged at to the axes of the preceding roll pair.
  • a rolling mill train according to claim 1 in which the roll pairs of each stand are arranged approximately at the corners of a square and the first gear box is situated approximately at the center of the square.
  • a rolling mill train according to claim 1 in which the first, second and third gear boxes are driven by first, second and third line shafts.
  • a rolling mill train according to claim 9 in which the line shafts are driven from a pinion stand.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
US523427A 1965-02-04 1966-01-27 Rolling mills Expired - Lifetime US3391562A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4823/65A GB1127771A (en) 1965-02-04 1965-02-04 Rolling mills

Publications (1)

Publication Number Publication Date
US3391562A true US3391562A (en) 1968-07-09

Family

ID=9784473

Family Applications (1)

Application Number Title Priority Date Filing Date
US523427A Expired - Lifetime US3391562A (en) 1965-02-04 1966-01-27 Rolling mills

Country Status (5)

Country Link
US (1) US3391562A (enrdf_load_stackoverflow)
BE (1) BE676094A (enrdf_load_stackoverflow)
DE (1) DE1527624A1 (enrdf_load_stackoverflow)
GB (1) GB1127771A (enrdf_load_stackoverflow)
SE (1) SE307556B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996014174A1 (en) * 1994-11-07 1996-05-17 Davy Mckee (Sheffield) Limited A multi-strand finishing block
EP1256399A1 (de) * 2001-05-10 2002-11-13 SMS EUMUCO GmbH Querwalzmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE15692E (en) * 1920-09-13 1923-10-02 Continuous tube rolling mill
US2024185A (en) * 1933-02-13 1935-12-17 Rober Ewald Push bench for drawing tubes
US2094920A (en) * 1934-05-25 1937-10-05 Babcock & Wilcox Tube Company Rolling mill
US3308644A (en) * 1963-12-02 1967-03-14 Mannesmann Meer Ag Drive for tube reduction mills

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE15692E (en) * 1920-09-13 1923-10-02 Continuous tube rolling mill
US2024185A (en) * 1933-02-13 1935-12-17 Rober Ewald Push bench for drawing tubes
US2094920A (en) * 1934-05-25 1937-10-05 Babcock & Wilcox Tube Company Rolling mill
US3308644A (en) * 1963-12-02 1967-03-14 Mannesmann Meer Ag Drive for tube reduction mills

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996014174A1 (en) * 1994-11-07 1996-05-17 Davy Mckee (Sheffield) Limited A multi-strand finishing block
CN1072990C (zh) * 1994-11-07 2001-10-17 戴维麦基(设菲尔德)有限公司 多股精轧机
EP1256399A1 (de) * 2001-05-10 2002-11-13 SMS EUMUCO GmbH Querwalzmaschine

Also Published As

Publication number Publication date
BE676094A (enrdf_load_stackoverflow) 1966-06-16
GB1127771A (en) 1968-09-18
SE307556B (enrdf_load_stackoverflow) 1969-01-13
DE1527624A1 (de) 1970-01-15

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