US1655063A - Rolling mill with supported working rolls - Google Patents

Rolling mill with supported working rolls Download PDF

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Publication number
US1655063A
US1655063A US156937A US15693726A US1655063A US 1655063 A US1655063 A US 1655063A US 156937 A US156937 A US 156937A US 15693726 A US15693726 A US 15693726A US 1655063 A US1655063 A US 1655063A
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US
United States
Prior art keywords
rolls
roller
working rolls
working
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 - Lifetime
Application number
US156937A
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English (en)
Inventor
Kriwan Arnold
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.)
Individual
Original Assignee
Individual
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
Priority claimed from GB2973326A external-priority patent/GB285983A/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1655063A publication Critical patent/US1655063A/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
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B13/04—Three-high arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/03—Sleeved rolls
    • 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

Definitions

  • This invention relates more particularly to that type ofrolling-mills for the elongation of material in'which the working rolls are supported'
  • the diameter of the rolls should be as small as possible, because experience has shown that rolls of small diameter produce great elongation of the material to be rolled. Said rolls of small diameter, however, show, under 1 the counter-pressure of the material to be I rolled, a considerable sagging or deflection and must therefore be supported.
  • the knownsupporting rolls are applicable for vplain workingrolls only, and not for rolls having various diameters on their longitudinal extent. In addition thereto, there occur very strong pressures and frictional strains in the necks of. the supporting rolls, so that Special cooling arrangements have to be provided.
  • rolling-mills have become known, in which the comparatively thin working rolls are supported by short sup-v porting rolls revolubly arranged on stationary shafts and distributed over the whole length of the working rolls. Said supporting rolls are secured against lateral displacement and preferably constructed as roller-bearings,.to ensure a reliable working.
  • each working 'roll a plurality of short supporting rolls, comprising each a plurality of roller-bearings revolubly mounted on a stationary shaft and a; roller-shaped body enclosing the latter and '45 bein'g in'direct contact with the working roll, cavities being formed by said rollerbe'arings within the supporting rolls, which cavities are used as lubricating chambers.
  • the distances between the roller-bearings are secured by inwardlyprojecting. shoulders on the roller-shaped body and by inter-v mediary rings on said shaft respectively, while the roller-bearings are secured against outward displacement by a shoulder on said a ball-bearing at one end of said body respectively.
  • Fig. 1 is a side view of a twin rolling-mill
  • Figs. 2 and 3 are respectively a longitudinal and a transverse section through the latter
  • Fig. 4 shows a detail of Fig. 2 on a larger scale
  • Fig. 5 shows the mountin of the ends of the working rolls in a si e view
  • Fig. 6 the same in a horizontal section on the line 66 of Fig. 5
  • Fig. 7 shows the mounting of the ends of the'supporting rolls in a side view
  • Fig. 8 the same in a horizontal section on the line 8-8 of Fig. 7.
  • Fig. 9 is a similar view to Fig. 3 of a threehigh rolling-mill
  • Fig. 10 shows part of a working roll for the latter with a bearing for the same in section, on a larger scale.
  • the two working rolls a of the twin roll ing-mill illustrated in Figs. 1 to 8 inclusive, are each supported by two pairs of supporting members I), 0 revolubly arranged on stationary shafts d, which are immovably mounted in housings e and screw-threaded at their ends so as to be fixed at the outside of said housings by means of nuts d (Fi 4).
  • each supporting member comprises two rollerbearings'of which the inner counter-rings are fitted with races for obliquely arranged rollers g, on which the outer counter-rings it are revolubly mounted.
  • Said outer rings 71 are connected and enclosed by an outer steelcylinder a, a cavity being left between the rings to serve as a lubricating chamber.
  • Said ringsbear attheir inner ad acent ends against. an inwardly projecting shoulder m of the steel cylinder 2' and against anintermediary ring 71.
  • the steel cylinder 2' forming thus a roller-shaped body, is indirect contact with the working roll to be supported,
  • Fig. 2 slightly convex rim
  • the working rolls a can be laterally withdrawn after removal of the guiding-rails 8, while the housing in the opposite framing remains therein. A dismounting of the counter-beam ings is not required.
  • the housing e for the supporting roll I) is held at one side by a removable rail t.
  • r Fig. 9 illustrates a three-high rolling-mill having a fixed middle working roll a and supporting rolls b 0 for the rotary working rolls a
  • Fig. 10 shows a bearing for a rotary working roll a j
  • Said bearing is provided with -a middle cavity u and two lateral cavities 2).
  • the latter receive eachtwo or more metal rin s w located at an angle of 49 and fitted on t ieir outer sides and edges with a strong washer z of rubber linen on which acts a steel disc m by means of an outwardly projecting screw y.
  • Said cavities v are filled with a lubricant

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
US156937A 1924-12-09 1926-12-24 Rolling mill with supported working rolls Expired - Lifetime US1655063A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK91991D DE460694C (de) 1924-12-09 1924-12-09 Walzwerk
GB2973326A GB285983A (en) 1926-11-24 1926-11-24 Improvements relating to rolling mills

Publications (1)

Publication Number Publication Date
US1655063A true US1655063A (en) 1928-01-03

Family

ID=25984540

Family Applications (1)

Application Number Title Priority Date Filing Date
US156937A Expired - Lifetime US1655063A (en) 1924-12-09 1926-12-24 Rolling mill with supported working rolls

Country Status (5)

Country Link
US (1) US1655063A (en(2012))
BE (1) BE337629A (en(2012))
CH (1) CH122120A (en(2012))
DE (1) DE460694C (en(2012))
FR (1) FR625066A (en(2012))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3307386A (en) * 1962-07-20 1967-03-07 Canada Steel Co Four-high rolling mill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3307386A (en) * 1962-07-20 1967-03-07 Canada Steel Co Four-high rolling mill

Also Published As

Publication number Publication date
FR625066A (fr) 1927-08-02
CH122120A (de) 1927-08-16
DE460694C (de) 1928-06-02
BE337629A (en(2012))

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