US3686919A - Control and adjustment assembly for rolling mill cages - Google Patents

Control and adjustment assembly for rolling mill cages Download PDF

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Publication number
US3686919A
US3686919A US100329A US3686919DA US3686919A US 3686919 A US3686919 A US 3686919A US 100329 A US100329 A US 100329A US 3686919D A US3686919D A US 3686919DA US 3686919 A US3686919 A US 3686919A
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Prior art keywords
rolls
axes
drive assembly
bearings
accordance
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Expired - Lifetime
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US100329A
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English (en)
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Ugo Brusa
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Individual
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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
    • B21B35/12—Toothed-wheel gearings specially adapted for metal-rolling mills; Housings or mountings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19502—Pivotally supported
    • Y10T74/19516—Spur

Definitions

  • ABSTRACT PP N05 100,329 A rolling rill drive train arrangernent wherein roller axes are displaceabl in opposite arcuate directions Rehned Apphcauonlnata and always remain in the same vertical plane.
  • PATENTED M1829 1922 SHEET 1 0F 2 alll CONTROL AND ADJUSTMENT ASSEMBLY FOR ROLLING MILL CAGES
  • PATENTED M1829 1922 SHEET 1 0F 2 alll CONTROL AND ADJUSTMENT ASSEMBLY FOR ROLLING MILL CAGES
  • This invention relates to a control or adjustment assembly for rolling mill cages.
  • the most' suitable roll diameter to work each section may be determined, as known, for each case within a good approximation.
  • more rolling trains must be used in each installation; in the case where, for installation economy, very different sections must be obtained with the same cage, it is not possible to vary the diameter of the rolls more than within a very small range, as this diameter, according to known construction system, is fixed, having to correspond to the center distance of the actuating pinions.
  • the drive of the two rolls of a rolling mill cage is obtained by an assembly which comprises, in addition to the motor, a reduction unit, a doubling unit (usually named pinion cage) and two extension parts provided with coupling sleeves to connect a pinion shaft to the end of a roll.
  • Both rolls receive the drive from the side where the pinion cage is located and the two coupling sleeves, arranged parallel to each other must lie spaced one from another at a distance sufficient to avoid any contact therebetween.
  • the diameter of the coupling sleeves limit the minimum diameter that each roll may assume.
  • the object of the invention is to provide a rolling train which may in practice work with a good efficiency over the whole range of flats, sheets, structural shapes etc. normally required by the trade, utilizing in the best way the available motor power.
  • the first feature of the invention consists in the fact that the two reduction units, through which the two rolls of the same cage receive their drive from the same motor, are located one on one side of the cage and the other on the opposite side, and are mounted on bearings pivoted on horizontal axes, said axes being parallel to each other and to the axes of the rolls, and lying in the same vertical plane.
  • each bearing is the axis of the fast shaft of each reduction unit, whereas the slow shaft from which the rolls receive their drive is movable and carries with it the rolls, which are displaced while maintaining them parallel to each other and equidistant from the pivotal axis which is different for the two rolls.
  • the axes of the rolls during their displacement generate two cylindrical surfaces with horizontal axes.
  • the displacement of said two rolls is effected in such a way that the plane defined by their axes and the axis of the fast shaft causing itsactuation, rotates upward for one of them through a certain angle, and, for the other, it rotates downward through the same angle.
  • Another feature of the invention consists in the fact that preferably each of the two reduction units actuating the rolls presents a plurality of output shafts, corresponding to different reduction ratios of the motor speed.
  • FIG. 1 is a perspective view of a rolling mill cage with its control members
  • FIG. 2 is a schematic, perspective view of one embodiment of the rolling mill control and the devices allowing to obtain the variation of the position of the axes of the rolls;
  • FIG. 3 similar to FIG. 2, shows another embodiment of the reduction units
  • FIG. 4 is a side elevation of the cage of FIG. 1 from the opposite side of the motor;
  • FIG. 5 is a top view of the cage, partly in section.
  • FIG. 6 is a front view.
  • FIG. 1 there is shown a rolling cage consisting of two rolls C C having axes 0 0 and respectively 0, 0 mounted on a frame for a vertical sliding movement.
  • a motor 101 allows to actuate the rolls through two reduction units and two sleeves M M mounted on opposite sides of the cage.
  • the reduction units are supported in housings 102, 102' which can be opened so as to allow access to the reduction units and are connected by a shaft A, whose ends are mounted in bearings 103, 103'.
  • the reduction units may have a plurality of output shafts 104, 105 (FIG. 5) corresponding to different reduction ratios of the motor speed.
  • Frame 100 supporting the rolls is mounted on guideways 106 for a sliding movement on the construction base, so as to bring the rolls in face of either couple 104, 105 of output shafts of the reduction units, according to the requirements of the working.
  • I-Iousings 102, 102' are supported at their rear ends by the bearings 103, 103' so that they can be pivotally moved about horizontal axes, parallel to each other and lying in the same vertical plane, in order to vary the distance between the rolls. More particularly, housing 102 is pivoted to an axis 107 parallel to shaft A and coaxial with the output shaft of motor 101. Housing 102' is pivoted to shaft A. The front portion of these housings are supported for instance by screws 11 which are hingedly connected to the construction base through a joint 14 and may be rotated so as to pivotally move the housings through the same angle but in opposite directions.
  • the reduction units and the means for varying the angular position of the rolls are best shown in FIG. 2.
  • the frame 100 of the cage, the bearings 103, 103' and the motor 101 are not shown.
  • the figure relates to reduction units with a single output shaft.
  • the reduction unit of the cylinder C comprises a pinion P rigidly coupled for rotation with the output shaft of the motor, which pinion meshes with wheel or gear D having an output shaft actuating sleeve M coupled to cylinder C
  • a second pinion P having the same diameter as P meshes with pinion P and hence receives the movement at the same speed but in the opposite direction.
  • Pinion P is rigidly coupled for rotation to one end of shaft A which at the other end carries pinion P of the reduction unit relative to roll C Shaft A is the fast shaft of this reduction unit.
  • Pinion P meshes with a wheel or gear D whose output shaft is coupled with sleeve M
  • the output shafts of wheels D and D extend on the side opposite to rolls C and C and their ends are supported in plates 10 and 10. Plates 10 also bears the extension of shaft A, which is the axis of P whereas pinion P is supported in bearing 103 independently from housing 102.
  • FIG. 2 further shows the means for rotating axes of wheels D and D and hence axes of cylinders C, and C around said fixed axes.
  • each plate is provided with a lug 13 hingedly connected by means of a pin 19 movable within a slot 18, to a female thread or threaded sleeve 12 engaged by a screw 11 rigidly coupled for rotation with wheel or gear meshing with wheel or gear 16, actuated, for instance, by an actuating wheel 17.
  • the reduction units may be arranged as shown in FIG. 3.
  • the reduction units may be arranged as shown in FIG. 3.
  • the axes of wheels D, and D are rigidly coupled pinions Q and respectively Q having output shafts 104 and meshing with second wheels or gears R and respectively R having in turn output shafts 105, whose speed is lower than the speed of output shaft 104.
  • sleeves M and M are shown-coupled to said slower shafts 105.
  • FIGS. 4 to 6 show different views of the rolling mill cage and the control assembly.
  • FIG. 5 shows that the reduction unit relative to roll C actually comprises two pinions Q and Q rigidly coupled to the axis of wheel D on opposite sides thereof, said pinions meshing respectively with wheels R R having the same output shaft 105.
  • the reduction unit relative to roll C will be constructed in the same way. For sake of simplicity only pinion Q and wheel R have been shown in FIG. 3.
  • FIGS. 5 and 6 show also that the front portions of housings 102, 102 are supported by two of said screws 11, placed at both sides of the housing.
  • control and adjustment assembly described and illustrated operates in the following way.
  • the operating speed of the rolls' more suitable for the particular working is chosen, if the reduction units allow it, by coupling the sleeves to one couple of output shafts 104, of the reduction units.
  • plates 10 and 10' are locked to avoid their further displacement in a vertical direction, and the working may be carried on.
  • the means used to obtain the variation of the distance between the roll axes permit very wide displacement, as for instance from 30 to 800 mm.
  • control may be obtained by mechanical means, for instance a motor actuating pinions 16.
  • Two distinct motors may be employed for actuating pinions 16 of each plate, or preferably a single motor will actuate pinions 16 of both plates. In such a way, if screws 11 relative to the two plates are threaded in opposite ways, the same number of rotations of pinions 16 will permit to obtain angular displacements of plates 10 equal in amplitude but in opposite directions.
  • a drive assembly for rolling mill cages wherein two rolls of a single cage receive their drive from a single motor through two reduction units placed on opposite sides of the cage, characterized in that the reduction units are mounted in bearings pivoted on horizontal axes, parallel to each other and to the axes of the rolls, and lying in the same vertical plane, means permitting rotation of said bearings around said axes through equal angles but in opposite directions.
  • each bearing consist of a female threaded member hingedly coupled to a lug on a housing wall and threadably engaged by a screw which is rotated by a suitable actuating means.
  • each reduction unit has a plurality of output shafts which receive the rotation of the motor reduced by different ratios and therefore actuate the rolls at different speed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Metal Rolling (AREA)
US100329A 1967-09-22 1970-12-21 Control and adjustment assembly for rolling mill cages Expired - Lifetime US3686919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5309567 1967-09-22

Publications (1)

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US3686919A true US3686919A (en) 1972-08-29

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US100329A Expired - Lifetime US3686919A (en) 1967-09-22 1970-12-21 Control and adjustment assembly for rolling mill cages

Country Status (9)

Country Link
US (1) US3686919A (ref)
AT (1) AT294736B (ref)
BE (1) BE719383A (ref)
CH (1) CH480884A (ref)
ES (1) ES357172A1 (ref)
FR (1) FR1598163A (ref)
LU (1) LU56659A1 (ref)
NL (1) NL6813602A (ref)
SE (1) SE338755B (ref)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182149A (en) * 1975-11-14 1980-01-08 Hille Engineering Company, Ltd. Roll stand
US4924689A (en) * 1987-03-04 1990-05-15 Morgan Construction Company Rolling mill
WO1998015751A1 (de) * 1996-10-08 1998-04-16 Voith Turbo Gmbh & Co. Kg Sicherheitskupplung
WO1998015750A1 (de) * 1996-10-08 1998-04-16 Voith Turbo Gmbh & Co. Kg Antriebssystem zur leistungsübertragung von einer abtriebsquelle auf mehrere abtriebsstränge
US5911781A (en) * 1996-12-02 1999-06-15 Tippins Incorporated Integral coiler furnace drive motor
US5921152A (en) * 1998-02-03 1999-07-13 Morgan Construction Company Optional multi-ratio gear transmission system
US11273478B2 (en) * 2018-06-07 2022-03-15 Mitsubishi Heavy Industries, Ltd. Power transmission device and rolling mill

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023100755A1 (de) * 2023-01-13 2024-07-18 Kolbus Gmbh & Co. Kg Vorrichtung und Verfahren zum Bearbeiten von Bogen und/oder Bahnen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1962581A (en) * 1929-05-25 1934-06-12 Farrel Birmingham Co Inc Drive mechanism for rolling mills and the like
US2240362A (en) * 1938-02-25 1941-04-29 Demag Ag Rolling mill

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1962581A (en) * 1929-05-25 1934-06-12 Farrel Birmingham Co Inc Drive mechanism for rolling mills and the like
US2240362A (en) * 1938-02-25 1941-04-29 Demag Ag Rolling mill

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182149A (en) * 1975-11-14 1980-01-08 Hille Engineering Company, Ltd. Roll stand
US4924689A (en) * 1987-03-04 1990-05-15 Morgan Construction Company Rolling mill
WO1998015751A1 (de) * 1996-10-08 1998-04-16 Voith Turbo Gmbh & Co. Kg Sicherheitskupplung
WO1998015750A1 (de) * 1996-10-08 1998-04-16 Voith Turbo Gmbh & Co. Kg Antriebssystem zur leistungsübertragung von einer abtriebsquelle auf mehrere abtriebsstränge
US6148981A (en) * 1996-10-08 2000-11-21 Voith Turbo Gmbh & Co., Kg Drive system for the transmission of power from a power source to a plurality of output trains
US6170627B1 (en) * 1996-10-08 2001-01-09 Voith Turbo Gmbh & Co., Kg Safety clutch
US5911781A (en) * 1996-12-02 1999-06-15 Tippins Incorporated Integral coiler furnace drive motor
US5921152A (en) * 1998-02-03 1999-07-13 Morgan Construction Company Optional multi-ratio gear transmission system
US11273478B2 (en) * 2018-06-07 2022-03-15 Mitsubishi Heavy Industries, Ltd. Power transmission device and rolling mill

Also Published As

Publication number Publication date
LU56659A1 (ref) 1968-11-14
FR1598163A (ref) 1970-07-06
NL6813602A (ref) 1969-03-25
ES357172A1 (es) 1970-03-01
SE338755B (ref) 1971-09-20
BE719383A (ref) 1969-01-16
CH480884A (it) 1969-11-15
AT294736B (de) 1971-12-10

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