US3153955A - Rolling mill - Google Patents

Rolling mill Download PDF

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Publication number
US3153955A
US3153955A US113931A US11393161A US3153955A US 3153955 A US3153955 A US 3153955A US 113931 A US113931 A US 113931A US 11393161 A US11393161 A US 11393161A US 3153955 A US3153955 A US 3153955A
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cages
rolls
rolling
roll
support
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US113931A
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Franz G Platzer
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    • 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
    • B21B13/18—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills
    • B21B13/20—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills for planetary rolling

Definitions

  • the present invention relates to a rolling mill having working rolls which rotate around stationary roll support means wherein the rolls are mounted in rotating roller cages which serve simultaneously as means for transferring the working forces to the rolls.
  • the rolling pressure is transmitted through pairs of support rolls to the stationary roller support means.
  • the working rolls of this type of known rolling mill are rolling, on the one hand, on the material to be rolled and, on the other hand, on the rotating support rolls which in turn are rol1- ing on the stationary support means.
  • varying circumferential speeds take place and these relative movements produce wear.
  • the object of the present invention to provide a simple construction for rolling mills which is dependable in operation and in which the rolling width is relatively small, this construction also providing a solution for the above-mentioned kinematic problem.
  • the invention resides in that the working rolls are supported without the conventional support rolls but are supported on support means by support rings which are rotatably mounted on each side of the rolls on the roller shaft and, on the other hand, the rollers are journaled in the rotating roller cages in bearings which are preferably formed as roller bearings axially outwardly of the above-mentioned support rings.
  • the rollers are journaled in the rotating roller cages in bearings which are preferably formed as roller bearings axially outwardly of the above-mentioned support rings.
  • Profiled guide pieces may be inserted at the guide track of the stationary roller support means on the sides thereof which face each other, these guide pieces giving the working rolls during the rolling on the support rings a clearance and thus to the material being rolled the gauge which may be desired.
  • the working rolls in the ring-shaped rotatable roller cages are preferably journaled with their roller pivots in roller bearings, the inner rings of which are securely fastened on the extended roller pivots.
  • the roller cages may be connected with them in a known manner and may be driven by means of inter-connected gears in opposite directions.
  • FIG. 1 is a diagrammatic vertical section through a rotatable rolling mill
  • FIG. 2 is a fragmentary section of the roller bearing arrangement of the rolling mill shown in FIG. 1, taken on line IIII of FIG. 1, and
  • FIG. 3 is a partial section of the bearing arrangement illustrated in FIG. 2, taken on line IIIIII.
  • roller stands 1 superimposed, generally circular, support members 2, 3 are mounted non-rotatably.
  • working rolls 4, 5 are arrnaged in equal circumferential intervals, these working rolls being supported by the intermediary of support rings 6, 7 mounted for free rotation independently of the rolls 4 and 5 on trunnions 6' extending axially from opposite ends of rolls 4 and 5, and, running on the guide tracks 8.
  • the support members 2, 3 are surrounded by roller cages 12, 13 which are mounted rotatably and drivably with respect to the support members, the roller cages being securely connected to gears 14, 15.
  • the gears 14, 15 and thus the roller cages 12, 13 are operated through the drive means (not shown) in the direction indicated in FIG. 1.
  • the working rollers 4, 5 are mounted in the roller cages 12, 13 by means of bearing members 16, 17 so as to be radially slidable against the pressure of springs 18, 19.
  • Rollers 4, 5 roll freely on the material to be rolled so that they roll in a direction contrary to a rolling motion with respect to supports 2, 3.
  • the working rolls 4, 5 which absorb the rolling forces are supported on the guide tracks 8, 9 or the guide pieces (cam portions) 10, 11 of the support members 2, 3 through the intermediary of the rotatable support rings 6, 7.
  • the rolling force is absorbed by the working rollers 4, 5 and transmitted directly to the support rings 6, 7 which transmit the rolling force through guide pieces 10, 11 to the support members 2, 3.
  • a rolling mill including a stationary support means, spaced annular cages rotatably mounted on said support means, means for driving said cages, a plurality of circumferentially spaced working rolls disposed about said support means, trunnions extending from opposite ends of said rolls, said trunnions being journaled in said cages to mount each roll for rotation about the longitudinal axis thereof, spaced annular guide tracks on said support means and support rings rotatably mounted on said trunnions at the opposite ends of each roll for rotation independently of the rotation of each roll, said rings engaging said tracks to transmit the rolling force exerted on said rolls by a rolling operation to sm'd support means to rehave said cages of stresses vresulting from a rolling operation.
  • a rolling mill as defined in claim 2 in which a portion of each track forms a cam surface, whereby said rings roll on said tracks and into engagement with said cam surfaces to sequentially force each roll into engagement with Work to be rolled.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Metal Rolling (AREA)
  • Crushing And Grinding (AREA)
  • Rolling Contact Bearings (AREA)

Description

United States Patent 3,153,955 ROLLING MILL Franz G. Platzer, Max Tendler-Gasse 26, Leoben, Steiermark, Austria Filed May 31, 1961, Ser. No. 113,931 Claims priority, application Germany, June 18, 1960, Patent 25,208 3 Claims. (Cl. 80-40) The present invention relates to a rolling mill having working rolls which rotate around stationary roll support means wherein the rolls are mounted in rotating roller cages which serve simultaneously as means for transferring the working forces to the rolls. In the known rolling mills of this type the rolling pressure is transmitted through pairs of support rolls to the stationary roller support means. During the rolling operation the working rolls of this type of known rolling mill are rolling, on the one hand, on the material to be rolled and, on the other hand, on the rotating support rolls which in turn are rol1- ing on the stationary support means. During this operation varying circumferential speeds take place and these relative movements produce wear. In order to eliminate these relative movements it has been proposed to form the support roll of a plurality of rotatable roll sections which are arranged axially in series and which are rotatable independently of each other wherein one section is provided with eccentric peripheral surfaces with respect to the other section. By means of intermediate rolls which are formed in this manner and which roll with one part of their sections on the stationary roll support members while the other part of the sections support the working rolls, it is possible to avoid relative movements and thus frictions and binding stresses.
It is the object of the present invention to provide a simple construction for rolling mills which is dependable in operation and in which the rolling width is relatively small, this construction also providing a solution for the above-mentioned kinematic problem. The invention resides in that the working rolls are supported without the conventional support rolls but are supported on support means by support rings which are rotatably mounted on each side of the rolls on the roller shaft and, on the other hand, the rollers are journaled in the rotating roller cages in bearings which are preferably formed as roller bearings axially outwardly of the above-mentioned support rings. During the rolling of the working rolls on the material to be rolled they are rotating in the opposite direction to the support rings which roll on the stationary rolling means on each side of the rolls. Profiled guide pieces may be inserted at the guide track of the stationary roller support means on the sides thereof which face each other, these guide pieces giving the working rolls during the rolling on the support rings a clearance and thus to the material being rolled the gauge which may be desired.
The working rolls in the ring-shaped rotatable roller cages are preferably journaled with their roller pivots in roller bearings, the inner rings of which are securely fastened on the extended roller pivots. The roller cages may be connected with them in a known manner and may be driven by means of inter-connected gears in opposite directions.
The drawing illustrates an embodiment of the present invention, in which:
ice
FIG. 1 is a diagrammatic vertical section through a rotatable rolling mill,
FIG. 2 is a fragmentary section of the roller bearing arrangement of the rolling mill shown in FIG. 1, taken on line IIII of FIG. 1, and
FIG. 3 is a partial section of the bearing arrangement illustrated in FIG. 2, taken on line IIIIII.
In the roller stands 1, superimposed, generally circular, support members 2, 3 are mounted non-rotatably. Around these support members, working rolls 4, 5 are arrnaged in equal circumferential intervals, these working rolls being supported by the intermediary of support rings 6, 7 mounted for free rotation independently of the rolls 4 and 5 on trunnions 6' extending axially from opposite ends of rolls 4 and 5, and, running on the guide tracks 8. 9 of support members 2, 3.
On the confronting sides of the support members 2, 3, guide pieces or cam portions 10, 11 are inserted which are provided with converging tracks 10, 11', as well as with parallel tracks 10", 11". The peripheral surface of the support members projects from the circular track on both sides of the guide pieces so that the peripheral surfaces form converging as well as diverging tracks.
The support members 2, 3 are surrounded by roller cages 12, 13 which are mounted rotatably and drivably with respect to the support members, the roller cages being securely connected to gears 14, 15. The gears 14, 15 and thus the roller cages 12, 13 are operated through the drive means (not shown) in the direction indicated in FIG. 1. The working rollers 4, 5 are mounted in the roller cages 12, 13 by means of bearing members 16, 17 so as to be radially slidable against the pressure of springs 18, 19. Rollers 4, 5 roll freely on the material to be rolled so that they roll in a direction contrary to a rolling motion with respect to supports 2, 3.
The working rolls 4, 5 which absorb the rolling forces are supported on the guide tracks 8, 9 or the guide pieces (cam portions) 10, 11 of the support members 2, 3 through the intermediary of the rotatable support rings 6, 7. The rolling force is absorbed by the working rollers 4, 5 and transmitted directly to the support rings 6, 7 which transmit the rolling force through guide pieces 10, 11 to the support members 2, 3.
During the rolling process the outer rings of the support rings 6, 7 which roll on the guide tracks 8, 9 or on the guide pieces 10, 11 rotate in a direction which is opposite to that of the working rolls 4, 5.
By means of springs 18, 19 the support rings 6, 7 are forced against the guide tracks 8, 9 or against the guide pieces 19, 11.
What is claimed is:
l. A rolling mill including a stationary support means, spaced annular cages rotatably mounted on said support means, means for driving said cages, a plurality of circumferentially spaced working rolls disposed about said support means, trunnions extending from opposite ends of said rolls, said trunnions being journaled in said cages to mount each roll for rotation about the longitudinal axis thereof, spaced annular guide tracks on said support means and support rings rotatably mounted on said trunnions at the opposite ends of each roll for rotation independently of the rotation of each roll, said rings engaging said tracks to transmit the rolling force exerted on said rolls by a rolling operation to sm'd support means to rehave said cages of stresses vresulting from a rolling operation.
2. A rolling mill as defined in claim 1, in which radially movable bearing blocks are mounted in said cages to rotatably receive said trunnions with spring means urging said blocks radially inwardly to maintain said rings in engagement with said tracks.
3. A rolling mill as defined in claim 2, in which a portion of each track forms a cam surface, whereby said rings roll on said tracks and into engagement with said cam surfaces to sequentially force each roll into engagement with Work to be rolled.
References Cited in the file of this patent UNITED STATES PATENTS Davis Oct. 4, 1904 Platzer Nov. 22, 1960 FOREIGN PATENTS Great Britain June 19, 1899 Great Britain Sept. 26, 1956 Great Britain Dec. 11, 1957 Great Britain July 5, 1961

Claims (1)

1. A ROLLING MILL INCLUDING A STATIONARY SUPPORT MEANS, SPACED ANNULAR CAGES ROTATABLY MOUNTED ON SAID SUPPORT MEANS, MEANS FOR DRIVING SAID CAGES, A PLURALITY OF CIRCUMFERENTIALLY SPACED WORKING ROLLS DISPOSED ABOUT SAID SUPPORT MEANS, TRUNNIONS EXTENDING FROM OPPOSITE ENDS OF SAID ROLLS, SAID TRUNNIONS BEING JOURNALED IN SAID CAGES TO MOUNT EACH ROLL FOR ROTATION ABOUT THE LONGITUDINAL AXIS THEREOF, SPACED ANNULAR GUIDE TRACKS ON SAID SUPPORT MEANS AND SUPPORT RINGS ROTATABLY MOUNTED ON SAID TRUNNIONS AT THE OPPOSITE ENDS OF EACH ROLL FOR ROTATION INDEPENDENTLY OF THE ROTATION OF EACH ROLL, SAID RINGS ENGAGING SAID TRACKS TO TRANSMIT THE ROLLING FORCE EXERTED ON SAID ROLLS BY A ROLLING OPERATION TO SAID SUPPORT MEANS TO RELIEVE SAID CAGES OF STRESSES RESULTING FROM A ROLLING OPERATION.
US113931A 1957-01-26 1961-05-31 Rolling mill Expired - Lifetime US3153955A (en)

Applications Claiming Priority (1)

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DEP17857A DE1140534B (en) 1957-01-26 1957-01-26 Planetary rolling mill

Publications (1)

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US3153955A true US3153955A (en) 1964-10-27

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US708790A Expired - Lifetime US2975663A (en) 1957-01-26 1958-01-14 Rolling mill
US726859A Expired - Lifetime US2960894A (en) 1957-01-26 1958-04-07 Rolling mill installation
US113931A Expired - Lifetime US3153955A (en) 1957-01-26 1961-05-31 Rolling mill

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US708790A Expired - Lifetime US2975663A (en) 1957-01-26 1958-01-14 Rolling mill
US726859A Expired - Lifetime US2960894A (en) 1957-01-26 1958-04-07 Rolling mill installation

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US (3) US2975663A (en)
DE (3) DE1140534B (en)
FR (1) FR1215979A (en)
GB (3) GB822132A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439519A (en) * 1967-04-25 1969-04-22 Jones & Laughlin Steel Corp Billet roughing mill
US3595054A (en) * 1969-05-01 1971-07-27 Tadeusz Sendzimir Double three high planetary mill
EP0248764A1 (en) * 1986-06-04 1987-12-09 Larex Ag Roll for conveying hot material, in particular plate or strip, and method of maintaining the roll
US6304728B1 (en) 2000-03-14 2001-10-16 Concord Camera Corp. Camera with flash unit disposed in between viewfinder lenses

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140534B (en) * 1957-01-26 1962-12-06 Erben Des Verstorbenen Dr Ing Planetary rolling mill
DE1452935B2 (en) * 1965-09-23 1974-01-17 Ungerer Geb. Dollinger, Irma, 7530 Pforzheim Straightening machine for the bending straightening of fine and thin sheets
DE2418526A1 (en) * 1973-05-10 1974-11-28 Josef Froehling CYCLOID ROLLING MILL
DE3826822A1 (en) * 1988-08-06 1990-02-15 Krupp Gmbh ROLLING MILLS FOR FLAT PRODUCTS
DE3904166A1 (en) * 1989-02-11 1990-08-16 Mannesmann Ag Planetary roll for a planetary rolling mill
DE3928962C1 (en) * 1989-08-29 1990-12-06 Mannesmann Ag, 4000 Duesseldorf, De
DE4019562C1 (en) * 1990-06-15 1991-10-02 Mannesmann Ag, 4000 Duesseldorf, De
DE4035275C1 (en) * 1990-11-02 1992-06-04 Mannesmann Ag, 4000 Duesseldorf, De
US5133205A (en) * 1990-11-13 1992-07-28 Mannesmann Aktiengesellschaft System and process for forming thin flat hot rolled steel strip
DE4442361C1 (en) * 1994-11-18 1996-03-07 Mannesmann Ag Planetary rolling mill with reduced roll wear
CN103920713B (en) * 2014-04-23 2016-03-30 武汉钢铁(集团)公司 Double planetary systems roll

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189912747A (en) * 1899-06-19 1900-04-07 Heinrich Ehrhardt Improvements in or relating to Machines for Rolling Blanks, Tubes, and the like.
US771611A (en) * 1901-12-12 1904-10-04 Nat Tube Co Swaging-mill.
GB758073A (en) * 1953-09-18 1956-09-26 Franz Platzer A device for rolling material, especially metallic material
GB787442A (en) * 1954-11-11 1957-12-11 Innocenti Soc Generale Method and apparatus for rolling seamless tubes
US2960894A (en) * 1957-01-26 1960-11-22 Platzer Franz Rolling mill installation
GB871997A (en) * 1958-01-03 1961-07-05 Ici Ltd Method of and apparatus for reducing the thickness of metals

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR411566A (en) * 1909-03-30 1910-06-20 Mannesmannroehren Werke Soc Rolling mill with satellite movement of worker rolls
US1708185A (en) * 1927-02-12 1929-04-09 Mattei Diego Plate-rolling mill
US1824211A (en) * 1928-05-02 1931-09-22 August F Jobke Rolling mill
US2273122A (en) * 1940-09-28 1942-02-17 Friedrich K Maussnest Roll structure for employing small diameter working rolls in the leveling of sheet and strip material
GB655190A (en) * 1948-07-14 1951-07-11 Armco Int Corp Planetary rolling mill
GB717203A (en) * 1951-06-08 1954-10-20 Franz Platzer An improved device and process for rolling metal and other materials
AT183398B (en) * 1951-06-08 1955-10-10 Franz Dr Platzer Device for rolling material, in particular metallic material
US2718827A (en) * 1952-10-08 1955-09-27 Farrel Birmingham Co Inc Paper calender
DE956393C (en) * 1953-09-18 1957-01-17 Dr Franz Platzer Rolling mill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189912747A (en) * 1899-06-19 1900-04-07 Heinrich Ehrhardt Improvements in or relating to Machines for Rolling Blanks, Tubes, and the like.
US771611A (en) * 1901-12-12 1904-10-04 Nat Tube Co Swaging-mill.
GB758073A (en) * 1953-09-18 1956-09-26 Franz Platzer A device for rolling material, especially metallic material
GB787442A (en) * 1954-11-11 1957-12-11 Innocenti Soc Generale Method and apparatus for rolling seamless tubes
US2960894A (en) * 1957-01-26 1960-11-22 Platzer Franz Rolling mill installation
GB871997A (en) * 1958-01-03 1961-07-05 Ici Ltd Method of and apparatus for reducing the thickness of metals

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439519A (en) * 1967-04-25 1969-04-22 Jones & Laughlin Steel Corp Billet roughing mill
US3595054A (en) * 1969-05-01 1971-07-27 Tadeusz Sendzimir Double three high planetary mill
EP0248764A1 (en) * 1986-06-04 1987-12-09 Larex Ag Roll for conveying hot material, in particular plate or strip, and method of maintaining the roll
US6304728B1 (en) 2000-03-14 2001-10-16 Concord Camera Corp. Camera with flash unit disposed in between viewfinder lenses

Also Published As

Publication number Publication date
US2960894A (en) 1960-11-22
DE1140534B (en) 1962-12-06
DE1260417B (en) 1968-02-08
GB828128A (en) 1960-02-17
GB822132A (en) 1959-10-21
GB928368A (en) 1963-06-12
FR1215979A (en) 1960-04-21
DE1167301B (en) 1964-04-09
US2975663A (en) 1961-03-21

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