US3323343A - Edging roll pairs - Google Patents

Edging roll pairs Download PDF

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Publication number
US3323343A
US3323343A US264236A US26423663A US3323343A US 3323343 A US3323343 A US 3323343A US 264236 A US264236 A US 264236A US 26423663 A US26423663 A US 26423663A US 3323343 A US3323343 A US 3323343A
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US
United States
Prior art keywords
rolls
roll
edging
girders
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.)
Expired - Lifetime
Application number
US264236A
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English (en)
Inventor
Norlindh Sven Erik Malte
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.)
MORGARDSHAMMARS MEK VERKSTADS AB
Original Assignee
Morgardshammars Mek Verkst Sa
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 Morgardshammars Mek Verkst Sa filed Critical Morgardshammars Mek Verkst Sa
Application granted granted Critical
Publication of US3323343A publication Critical patent/US3323343A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/02—Backlash elimination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/12—Covers or shieldings

Definitions

  • This invention relates to roll pairs in two-high rolling mills and to edging roll pairs for edging flat sections, particularly in plate rolling mills of the type where the rolls are mounted at each end in bearings which are supported in girders whereby the gap between the rolls is free in the direction of the roll axes.
  • the invention is characterized in that said girders, and thus the rolls supported therein, are maintained at an adjustable distance by at least one tension screw adjacent said rolls and at least one thrust screw more remote therefrom.
  • FIG. 1 is a side view, partially in section, of an edging mill according to the invention
  • FIG. 2 is a section along the line II-II of FIG. 1;
  • FIG. 3 is a top plan view of the edging mill of FIG. 1;
  • FIG. 4 is a section through the adjusting screws of the edging mill according to the invention along the line IVIV of FIG. 1.
  • FIG. 1 shows the edging rolls I mounted in spherical roller bearings 2 in a common roll bearing casing 3 secured in the girder 5 by tension gloves 4 (FIG. 3).
  • the girders 5 are maintained in their fixed positions against the rolling pressure P from the material a: by tension screws 6 (tractive force P and thrust screws 7 (compressive force P anchored in the adjusting screw gear 8 which is fastened in the foundation by the beams 9.
  • the rolls 1 are driven via gear coupling (spline coupling 10) and gearing means 11, 12 by motors 13 secured in the girders 5.
  • FIG. 2 shows one roll of the edging roll pair in a section IIII through the adjusting screws 6 and 7 where the material a is carried by the rollers 16 of the roller table.
  • Fixed support beams 17 are provided with the object of receiving the acceleration forces from the material a and the tractive and compressive forces, when the material is rolled at the same time in an adjacent four-high pair.
  • the rolling pressure P from the material a tends to press the rolls 1 and the girders 5 away from each other.
  • the girders 5 with associated rolls and driving means are supported by two pairs of wheels 14 provided rather near each other. They are so placed in relation to the center of gravity G between the left hand and right hand part of the roll mill that the weight of those parts causes a further tractive force in the tension-adjusting screws 6 and a further compressive force in the thrust screws 7 by positioning the tension-adjusting screws 6 at a higher level than the centers of the wheels and the thrust screws 7 at a lower level than the centers of the wheels. These forces work in the same direction as the rolling pressure P and cause the elimination of play in the adjusting equipment.
  • the girders 5 are provided with meniscal 3,323,343 Patented June 6, 1967 (i.e., half moon-shaped) passages above the adjusting screws 6 and 7, through which passages extend hemicy lindrical protective shields 18, 19.
  • FIG. 3 shows a top view of the edging roll pair
  • FIG. 4 a section through the adjusting screws 6 (or 7) which are provided with right-hand and left-hand threads and run-in nuts 6a (and 7a respectively) threaded into the girders 5.
  • the adjusting screws 6 (and 7) are rotatably secured in the adjusting screw gear 8 by axial bearings 6b (and 7b respectively), thereby maintaining the central line of the material to be rolled laterally unchanged.
  • the invention is not restricted to edging mill stand constructions but may be applied also to two-high mills where there is a special demand for having one roll end completely accessible (for maintenance and removal of cobbles), but where it is yet desired to have the rolls mounted in bearings on both sides of the barrel in order to obtain small deflections.
  • the neck and thus also the roll bearings closest to the roll must be given a large diameter in order to obtain somewhat acceptable deflection. For this reason, the roll diameter must be made larger than it need be for rolling.
  • the roll diameter can be chosen suitable for the rolling, because the roll is supported in bearings at both ends and mounted in a rigid frame which can be constructed with a great momentum of inertia at the adjusting screws 6, thus giving small deflections and making possible very quick roll changes.
  • a motor with associated pinion gear should be employed which drives the rolls via coupling spindles.
  • the driving equipment is preferably placed separately without connection with the girders 5.
  • Rolling m-ill stands for two-high rolling mills and edging mills comprising two roll assemblies, each consisting of a roll mounted at each end in bearings which are supported in a girder whereby the gap between the rolls is free in the direction of the roll axes, characterized in that said girders, and thus the rolls supported therein, are maintained at an adjustable distance from each other by at least one tension screw adjacent said rolls and at least one thrust screw more remote therefrom, each of said rolls being provided with a motor and drive means, so that the rolls can be adjusted within a very wide play range.
  • each roll assembly including a roll with its girder motor and drive means, rests upon wheels located to one side of the center of gravity of the roll assembly, so that the tractive and compressive forces in the tension and thrust screws, due to the weight of the roll assembly, act in the same direction as the roll pressure, thus eliminating thread play between the screws and nuts associated therewith.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Metal Rolling (AREA)
  • Rolling Contact Bearings (AREA)
US264236A 1962-03-14 1963-03-11 Edging roll pairs Expired - Lifetime US3323343A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE284662 1962-03-14

Publications (1)

Publication Number Publication Date
US3323343A true US3323343A (en) 1967-06-06

Family

ID=20260838

Family Applications (1)

Application Number Title Priority Date Filing Date
US264236A Expired - Lifetime US3323343A (en) 1962-03-14 1963-03-11 Edging roll pairs

Country Status (6)

Country Link
US (1) US3323343A (da)
AT (1) AT250883B (da)
DE (1) DE1427943A1 (da)
DK (1) DK109078C (da)
ES (1) ES286022A1 (da)
GB (1) GB1031036A (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300274A (en) * 1977-02-02 1981-11-17 Hermann Papst Method of manufacturing connecting rod for axial cylinder-type reciprocating piston engine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8324291D0 (en) * 1983-09-10 1983-10-12 Ashlow Ltd Rolling mill stand
RU2123399C1 (ru) * 1997-07-16 1998-12-20 Открытое акционерное общество "Уральский завод тяжелого машиностроения" Вертикальная прокатная клеть

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491286A (en) * 1945-06-06 1949-12-13 Morgan Construction Co Vertical rolling mill
US2575231A (en) * 1946-03-27 1951-11-13 Morgan Construction Co Vertical rolling mill
US2583844A (en) * 1950-12-08 1952-01-29 United States Steel Corp Vertical bar and billet mill
DE950843C (de) * 1954-08-01 1956-10-18 Schloemann Ag Vertikal- oder Stauchwalzengeruest
US2888847A (en) * 1956-07-18 1959-06-02 Charles R Younkin Tool for straightening muffler outlets
US2927488A (en) * 1956-08-17 1960-03-08 Morgan Construction Co Rolling mill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491286A (en) * 1945-06-06 1949-12-13 Morgan Construction Co Vertical rolling mill
US2575231A (en) * 1946-03-27 1951-11-13 Morgan Construction Co Vertical rolling mill
US2583844A (en) * 1950-12-08 1952-01-29 United States Steel Corp Vertical bar and billet mill
DE950843C (de) * 1954-08-01 1956-10-18 Schloemann Ag Vertikal- oder Stauchwalzengeruest
US2888847A (en) * 1956-07-18 1959-06-02 Charles R Younkin Tool for straightening muffler outlets
US2927488A (en) * 1956-08-17 1960-03-08 Morgan Construction Co Rolling mill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300274A (en) * 1977-02-02 1981-11-17 Hermann Papst Method of manufacturing connecting rod for axial cylinder-type reciprocating piston engine

Also Published As

Publication number Publication date
GB1031036A (en) 1966-05-25
DK109078C (da) 1968-03-18
ES286022A1 (es) 1963-12-01
AT250883B (de) 1966-12-12
DE1427943A1 (de) 1968-11-14

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