US2053694A - Universal rolling mill - Google Patents

Universal rolling mill Download PDF

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Publication number
US2053694A
US2053694A US665817A US66581733A US2053694A US 2053694 A US2053694 A US 2053694A US 665817 A US665817 A US 665817A US 66581733 A US66581733 A US 66581733A US 2053694 A US2053694 A US 2053694A
Authority
US
United States
Prior art keywords
housing
mill
rolls
shafts
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
US665817A
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English (en)
Inventor
Buchels Wilhelm
Koppel Rudolf Heinrich
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.)
FIRM RHEIN SCHELDE GES fur ING
Firm Rhein-Schelde Gesellschaft fur Ingenieurwesen M B H
Original Assignee
FIRM RHEIN SCHELDE GES fur ING
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 FIRM RHEIN SCHELDE GES fur ING filed Critical FIRM RHEIN SCHELDE GES fur ING
Application granted granted Critical
Publication of US2053694A publication Critical patent/US2053694A/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
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills

Definitions

  • a universal mill the individual rolls are actuated by a central embodying our invention, with three individual driving member, a mill according to our invention rolls in a housing, and a chain for driving the 15 has the advantage of low initial cost.
  • Another rolls, iS illustrated by Way 0f example advantage of the decentralized drive by the lat- In the drawings erally arranged driving shafts is that the speed Fig. 1 is an elevation of the mill; with its housof the individual rolls can bevaried in avery siming partly in section on the axis of one of its 4 2g ple manner, for instance, in the case of a chain three rolls, 20
  • FIG. 3 shows one of the casings, viewed from chain drive has the additional advantage that the left in Fig..2, and the depth of the housing is much reduced, with Fig. 4 is a section on the line IV-IV in Fig. 3.
  • the housing 25 of a complete mill train we are not has a central casting or body I, with a pair of limited to chain drive but may provide any other end plates 2, 2 which are secured to opposite faces driving means, such as belts, ropes or cables or of the casting l by through bolts 23.
  • driving means such as belts, ropes or cables or of the casting l by through bolts 23.
  • the indian internal gear, etc. By way of example, a chain vidual rolls 5, 5a and 5b, with their shafts 4, drive will be shown and described. are mounted to rotate in casings 3.
  • each individual roll is divided in the axial plane of their roll shafts each individual roll, with its roll shaft and the 4, each casing having a pair of flanged side plates corresponding driving shaft, is arranged in a cas- 33 and 34, whose flanges'are Connected by SCIeW ing which is adapted to be inserted in the housbolts 3l and two bearings 46 and 41 with thrust 35 ing and to be adjusted by any suitable means, rings 45.
  • Bearings for the driving shafts 9, 9a 35 such as wedges or the like.
  • each casing can be removed, for inwhich meshes a bevel gear 81on the Vdriving shaft l stance, if trouble occurs, without disassembling 9, 9a or 9b.
  • the driving shafts are not arranged the complete housing, as is required in the old centrally but laterally with respect to the axis A 45 a universal mills in which in such cases the correof the mill, andextend in parallel relation to the sponding housing is taken from the foundation axis.
  • Rotation is imparted 'to the driving shafts and disassembled which often involves a lay-up from a main driving shaft I4, with a sprocket of several days, so that it is usually preferred to I3, sprockets I0 on the individual driving shafts exchange a damaged housing for another housing 9, 9a and 9h and a chain Il. Guides for the 50 while the damaged one is repaired. chain are shown at I2.
  • vzontal that by turning one of the housings may be used for a complete mill train, i. e., the 55 housings for the mill train may be identical'and the roll axes are staggered by turning one of the housings throughY 180 degs. with respect to the adjacent housing, about its centralvertical axis.
  • This axis is the unbroken portion of the section line II--II in Fig. 1.
  • wedges I5 which are inserted in suitable grooves .of the casting I with their parallel backs, and with their inclined faces bear on corresponding faces at opposite sides of the casings, -as best seen in Fig. 1.
  • Bolts I6 are attached to the wedges at their outer ends and extend through bores I8 of the easing, and Il are nuts on the ends o f the bolts which project from the outer end of the vextended portion, 35. By rotating the nuts, the bolts I6 are shifted and the wedges I5 are displaced, ee'cting a corresponding displacement of the casing 3.
  • the small amount of transverse displacement which is possible 'with this wedgesystem, is amply'suicient for placing the rolls in the proper position with respect to the work.
  • screw bolts 20 For -holding the casings 3 in their recesses in the casting l, we provide screw bolts 20 in bores I9 of the casings which bores extend in parallel to -the b ores I8 for the bolts I6.
  • the screw bolts 20 are anchored in the castingl at their inner -ends and equipped with nuts on their outer ends at2I which bear on the outer ends of the exten- .sions 35.
  • the position of the bores I8 and I9 is best seen in Fig. 4.
  • Detachable caps 22 protect the outer ends of the casings and the parts projecting therefrom.
  • the driving shafts, 9, 9a and 9b also come out with the corresponding casings and the sprockets I0 are accessible.
  • the overall mechanical efiiciency of the mill is very high as it has few members whose individual mechanical eiliciency is also high.
  • chain drive is particularly favorable as it reduces the depth of the housings.
  • the individual housings of a mill train can be placed in'close vicinity to each other so that the overall length of the train is short in proportion to thenumber of housings it comprises.
  • the rolls might be arranged with the axes of their shafts l in two or more planes, as indicated in Fig. 2 where -b is the plane in which the axes of one set are disposed, and ab' is the plane of the other set. If two or more set's, with the axes of their shafts in several planes, are provided, they may.
  • a rolling mill in combination, a plurality of angularly disposed spindles disposed with their axes in a common plane, rolls mounted upon said spindles and relatively positioned to mutually coact in reducing in external diameter a tube or the like moving along a path normal to the plane of the spindle axes, a relatively narrow housing upon which the said spindles are rotatably mounted, the plane of the roll axes being intermediate the substantially parallel planes of transmission element having a portion intermediate the planes of the sidewall surfaces of the housing, and means also intermediate the planes mounted, the plane of the roll axes being intermediate the substantially parallel planes of the side wall surfaces of the housing, a power transmission element having a portion intermediate the planes of the side wall surfaces of the housing, and an endless member disposed and movable in a plane intermediate .the planes of the side wallsurfaces which operatively connects the power transmission element and the several spindles, whereby the spindles may be simultaneously driven.
  • a rolling mill in combination, a plurality of angularly disposed spindles disposed with their axes in a common plane, rolls mounted upon said spindles and relatively positioned to mutually co ⁇ act in reducing in external diameter a tube or the like movin'g along a path normal to the plane of the spindle axes, a relatively narrow housing r 4the side Wall surfaces of the housing, a power upon which the said spindles are rotatably' mounted, the plane of the roll axes being intermediate the substantially parallel planes of the side wall surfaces of the housing, a-power transmission element having a portion intermediate the planes of the side wall surfaces of Athe housing, and an endless chain connecting the power -transmission element and the several spindles whereby the spindles may be simultaneously driven, said chain being disposed and movable along a closed path, in a plane intermediate the planes of the side wall surfaces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Metal Rolling (AREA)
US665817A 1932-04-16 1933-04-12 Universal rolling mill Expired - Lifetime US2053694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE418216X 1932-04-16

Publications (1)

Publication Number Publication Date
US2053694A true US2053694A (en) 1936-09-08

Family

ID=6448818

Family Applications (1)

Application Number Title Priority Date Filing Date
US665817A Expired - Lifetime US2053694A (en) 1932-04-16 1933-04-12 Universal rolling mill

Country Status (4)

Country Link
US (1) US2053694A (de)
BE (1) BE395590A (de)
FR (1) FR754209A (de)
GB (1) GB418216A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789450A (en) * 1953-02-05 1957-04-23 Properzi Ilario Rolling mill
US4244204A (en) * 1977-11-16 1981-01-13 Vydrin Vladimir N Mill stand

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789450A (en) * 1953-02-05 1957-04-23 Properzi Ilario Rolling mill
US4244204A (en) * 1977-11-16 1981-01-13 Vydrin Vladimir N Mill stand

Also Published As

Publication number Publication date
FR754209A (de) 1933-11-02
BE395590A (de)
GB418216A (en) 1934-10-12

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