US3299685A - Drive for a multiple-stand rolling mill - Google Patents

Drive for a multiple-stand rolling mill Download PDF

Info

Publication number
US3299685A
US3299685A US327991A US32799163A US3299685A US 3299685 A US3299685 A US 3299685A US 327991 A US327991 A US 327991A US 32799163 A US32799163 A US 32799163A US 3299685 A US3299685 A US 3299685A
Authority
US
United States
Prior art keywords
gears
mill
rolls
planar
shafts
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
US327991A
Other languages
English (en)
Inventor
Kocks Friedrich
Holthoff Helmut
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.)
Friedrich Kocks GmbH and Co
Original Assignee
Friedrich Kocks GmbH and Co
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 Friedrich Kocks GmbH and Co filed Critical Friedrich Kocks GmbH and Co
Application granted granted Critical
Publication of US3299685A publication Critical patent/US3299685A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • B21B35/025—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills for stretch-reducing of tubes
    • 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
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • 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
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19074—Single drive plural driven
    • Y10T74/19079—Parallel
    • Y10T74/19084—Spur

Definitions

  • This invention concerns a drive for a multiple-stand rolling mill such for example as a multiple-stand universal mill for rolling rods or tubular material.
  • Our drive has advantages hereinafter explained over drives heretofore proposed for mills of similar type.
  • the direct-ion of rotation of the roll-driving shafts must be the same for all stands in mills with two-roll passes; in mills having three rolls forming a pass with the rolls of each successive stand disposed in position turned about the mill axis 60 relatively to those of the preceding stand the direction of rotation of the roll-driving shafts may be reversed from stand to stand.
  • Spur gear drives for rnil'ls of the type in question are known. In such known drives each succeeding stand is driven from the preceding stand so each pair of adjacent stands are connected mechanically with each other and driven in opposite directions of rotation. Because the center to-center distance between drives for the rolls of adjacent stands is established by the stand interval and cannot be less than the roll diameter the rolling speed is limited by the maximum permissible peripheral speed of the gears employed.
  • planar gears are eliminated in favor of planar gears.
  • the drive may be operated by an electric motor or any other suitable source of power. Through suitable driving connections the planar gear drive drives the mill rolls.
  • planar gear as used herein means a gear generally in the shape of a wheel with the teeth at the peripheral face, either perpendicular or non-perpendicular to the general planes of the sides of the gear; the term includes gears which are generally described as spur gears and helical gears in contradist-inction to bevel gears.
  • a drive for a multiple-stand rolling mill comprising generally parallel shafts driving the mill roll-s, a number of planar gears arranged in sequence along the mill, separate generally parallel shafts on which the planar gears are respectively mounted, the planar gears "ice being sequentially in mesh with one another so as to form a continuous gear train along the mill, means for driving such continuous gear train, of the planar gears numbered consecutively along the mill all the odd numbered gears having the same number of teeth and all the even numbered gears having the same number of teeth, and separate planar gear drives from the shafts on which the first mentioned planar gears are respectively mounted to the shafts driving the mill rolls, the transmission ratios of the separate planar gear drives being such that the speeds of rotation of the mill rolls increase in the direction of passage through the mill of material being rolled.
  • planar gears are preferably of approximately the same diameter; they may all have the same number of teeth. All of the odd numbered planar gears may have the same number of teeth and all of the even numbered planar gears may have the same number of teeth but a different number of teeth than the odd numbered planar gears.
  • the axes of the generally parallel shafts driving the mill rolls may be disposed in one plane with the axes of the generally parallel shafts on which the planar gears are respectively mounted disposed in another plane, or the axes of the generally parallel shafts driving the mill rolls and the axes of the generally parallel shafts on which the planar gears are respectively mounted may all be disposed in the same plane.
  • the axes of the generally parallel shafts driving the mill rolls may be arranged on a zigzag line with the axes of the generally parallel shafts on which the planar gears are respectively mounted coplanar, or the axes of the generally parallel shafts driving the mill rolls may be coplanar with the axes of the generally parallel shafts on which the planar gears are respectively mounted arranged on a zigzag line.
  • the axes of the generally parallel shafts driving the mill rolls may be arranged on a zigzag line with the axes of the generally parallel shafts on which the planar gears are respectivelymounted arranged on another zigzag line, which zigzag lines intersect each other with their apices spaced apart a distance equal to the longitudinal spacing between the generally parallel shafts driving the mill rolls.
  • Our drive in a modified form may comprise generally parallel shafts driving the mill rolls, a number of planar gears arranged in sequence along the mill, separate generally parallel shafts on which such planar gears are respectively mounted, such planar gears being sequentially in mesh with one another so as to form a continuous gear train along the mill, means for driving such continuous gear train, of the planar gears numbered consecutively along the mill all of the odd numbered gears having tion of the mill rolls increase in the direction of passage through the mill of material being rolled.
  • the axes of the shafts of at least one of the groups of generally parallel shafts (a) driving the mill rolls and b) on which the planar gears arranged in sequence along the mill are respectively mounted may be arranged on a zigzag line and, in addition, the axes of those of the shafts driving the mill rolls and of the shafts on which the planar gears are respectively mounted which are directly drivingly connected with one another by the separate planar gear drives may be disposed perpendicular to a plane containing the mill pass.
  • a drive for a multiple-stand rolling mill having shafts driving the mill rolls, the shafts being arranged in a plurality of groups with the axes of the shafts of each group parallel, with a drive for the shafts of each group comprising a number of planar gears arranged in sequence along the mill, separate generally parallel shafts on which the planar gears are respectively mounted, the planar gears being sequentially in mesh with one another so as to form a continuous gear train a'long the mill, means for driving such continuous gear train, of the planar gears numbered consecutively along the mill all the odd numbered gears having the same number of teeth and all the even numbered gears having the same number ofteeth, and separate planar gear drives from the shafts on which the first mentioned planar gears are respectively mounted to the shafts driving the mill rolls, the transmission ratios of the separate planar gear drives being such that the speeds of rotation of the mill rolls increase in the direction of passage through the mill of material being rolled.
  • a difierential gear may be connected with a second drive interposed between each shaft driving a mill roll and the mill roll driven thereby.
  • Our drive preferably has either exactly or approximately a l to 1 speed ratio in all stages from which the rolls are driven.
  • the direction of rotation of the planar gears alternates. This is advantageous for driving mills having three-roll passes, as will be demonstrated.
  • the train of planar gears, preferably of approximately the same diameter, disposed along the mill may be arranged in a straight line with the axes of all of the gears in the same plane.
  • the axes of the driving shafts are preferably offset from the axes of the gears of the train of planar gears either longitudinally of the mill or in a direction at right angles to the length of the mill.
  • the axes of the driving shafts on the one hand and the axes of the gears of the train of planar gears on the other hand may, as above indicated, lie in zigzag lines which cross each other and are relatively displaced longitudinally of the mill a distance equal to the longitudinal distance between the centers of adjacent roll stands.
  • a pinion is prefer-ably fixed to each roll driving shaft and separate gear drives may operatively connect individual gears of the train of planar gears to the pinions to. drive the rolls of the mill at progressively increasing speeds in the direction of advance of Work through the mill.
  • separate gear drives may operatively connect individual gears of the train of planar gears to the driving shafts of such coacting rolls which are rotatable about parallel axes to drive both such rolls.
  • each of such independent drives driving rolls whose axes extend in the same direction so that there are as many such independent drives as there are roll axis directions.
  • a plurality of such independent drives may be employed, such rolls of the same stand being driven respectively by different independent drives.
  • the number of teeth in the gears is preferably approximately but not necessarily exactly the same.
  • alternate gears may have a slightly greater number of teeth than the alternate gears in between them; one such set of alternate gears may have 43 teeth in each gear and the other such set of alternate gears may have 44 teeth in each gear.
  • the spacing of the roll passes of the mill may be such that two planar gears having an equal number of teeth will not fit properly. In certain cases slight variation in the number of teeth in the train of driving gears may facilitate the obtaining of desired speed ratios between roll passes.
  • a drive from a planar gear of a train of planar gears as above referred to to a roll may be constructed and arranged to drive the driving shaft driven thereby selectively at a plurality of speeds.
  • a plurality of pairs of coacting gears of different ratios may be employed together with clutch or equivalent means for selectively rendering such pairs of coacting gears operative.
  • FIGURE 1 is a plan diagram of a drive for a multiplestand rolling mill
  • FIGURE 2 is a gear diagram of the drive of FIGURE
  • FIGURE 3 is an elevational or cross-sectional diagram as though taken on the line IIIIII of FIGURE 4 of a drive for a multiple-stand rolling mill having three-roll passes with the rolls of each successive stand disposed in position turned about the mill axis 60 relatively to those of the preceding stand;
  • FIGURE 4 is a gear diagram of the drive of FIGURE
  • FIGURE 5 is a plan diagram of a drive for a multiplestand rolling mill having two-roll passes with the rolls of each successive stand disposed in position turned about the mill axis relatively to those of the preceding stand;
  • FIGURE 6 is a gear diagram of part of the drive FIGURE 5 looking in the direction VI of FIGURE 5;
  • FIGURE 7 is a gear diagram of part of the drive FIGURE 5 looking in the direction VII of FIGURE 5;
  • FIGURE 8' is a gear diagram of a drive for a multiplestand rolling mill similar to the drive of FIGURES 1 and 2 but modified in that of the planar gears numbered consecutively along the mill all the odd numbered gears have the same number of teeth and all the even numbered gears have the same number of teeth but a different number of teeth than the odd numbered gears;
  • FIGURE 9 is a gear diagram of a drive for a multiplestand rolling mill in which the axes of the generally parallel shafts driving the mill rolls are arranged on a zigzag line and the axes of the generally parallel shafts on which the planar gears are respectively mounted are coplanar;
  • FIGURE is a gear diagram of a drive for a multiplestand rolling mill in which the taxes of the generally parallel shafts driving the mill rolls are coplanar and the axes of the generally parallel shafts on which the planar gears are respectively mounted are arranged on a zigzag line;
  • FIGURE 11 is an elevational or cross-sectional diagram of a drive for a multiple-stand rolling mill with differential gearing connected with a second drive interposed between each shaft driving a mill roll and the mill roll driven thereby.
  • FIGURE 1 a multiplestand rolling mill designated generally by reference numeral 1 having five equally spaced stands of rolls, each stand of rolls comprising two coacting rolls with their axes parallel and horizontal.
  • the five stands of rolls are illustrated diagrammatically in FIGURE 1 and designated 3, 4, 5, 6 and 7, respectively, in the direction from the entrance end to the exit end of the mill.
  • a gear box or housing 8 Disposed alongside the mill 1 is a gear box or housing 8 in which are journaled five shafts 9, 10, 11, 12 and 13, respectively, spaced apart as shown, such shafts being coplanar, parallel and horizontal and offset horizontally from the stands of rolls 3, 4, 5, 6 and 7.
  • Spur gears 14, 15, 16, 17 and 18, respectively, are fixed to shafts 9, 10, 11, 12 and 13.
  • the spur gears 14, 15, 16, 17 and 18 are of substantially the same diameter and mesh with each other. They may all have the same number of teeth, or they may have approximately but not exactly the same number of teeth.
  • the gears 14, 16 and 18 may each have 43 teeth while the gears and 17 may each have 44 teeth.
  • the shaft 11 is driven by any suitable source of power, such, for example, as an electric motor, through a coupling 2.
  • Fixed to shafts 9, 10, 11, 12 and 13 are spur gears 19, 20, 21, 22 and 23, respectively.
  • Journaled in the gear box or casing 8 are shafts 24, 25, 26, 27 and 28, respectively.
  • These shafts are coplanar, parallel and horizontal and also coplanar and parallel with the shafts 9, 10, 11, 12 and 13. They are offset horizontally from the shafts 9, 10, 11, 12 and 13 and are disposed in line with the respective stands of rolls 3, 4, 5, 6 and 7.
  • Spur pinions 29, 30, 31, 32 and 33 are fixed to the shafts 24, 25, 26, 27 and 28, respectively, and mesh with the gears 19, 20, 21, 22 and 23 respectively.
  • the means for driving the train of gears 14, 15, 16, 17 and 18 are operatively connected with the central gear of that train and through the gears 19, 20, 21, 22 and 23 and the pinions 29, 30, 31, 32 and 33 the gears 14, 15, 16, 17 and 18 drive the shafts 24, 25, 26, 27 and 28.
  • the gears 19, 20, 21, 22 and 23 are of progressively increasing diameter in the direction of rolling and the pinions 29, 30, 31, 32 and 33 are of progressively decreasing diameter in the direction of rolling and the gear drives toward the entrance end of the mill are speed reducing gear drives while the gear drives toward the exit end of the mill are speed increasing ge-ar drives, the gear drives being constructed and arranged through means now to be described to drive the rolls of the mill at progressively increasing speeds in the direction of advance of the work through the mill corresponding with the progressive elongation of the work caused by reduction of its cross section as it advances through the mill.
  • the shaft 24 may be directly coupled to the upper roll of the stand 3 by the coupling 34, the shaft 25 may be directly coupled to the lower roll of the stand 4 by the coupling 35, the shaft 26 may be directly coupled to the upper roll of the stand 5 by the coupling 36, the shaft 27 may be directly coupled to the lower roll of the stand 6 by the coupling 37 and the shaft 28 may be directly coupled to the upper roll of the stand 7 by the coupling 38.
  • the two rolls may be geared together so that the driven roll drives the roll coacting therewith.
  • FIGURES 3 and 4 show my invention applied to a mill in which each roll pass is formed by three rolls with the rolls of each successive stand disposed in position turned about the mill axis 60 relatively to those of the preceding stand.
  • the rolls of one stand are illustrated in solid lines and designated 39 and the rolls of the succeeding stand are illustrated in dotted lines and designated 40.
  • There may be five stands of rolls, and the mill may be driven by a train of five spur gears of substantially the same diameter mounted on parallel shafts and meshing with each other, although the train of spur gears in the form of FIGURES 3 and 4 differs from that in the form of FIGURES 1 and 2 in that the shafts on which such gears are mounted are staggered rather than being coplanar.
  • the gears are mounted in a gear box or housing 127.
  • the train of spur gears of substantially the same diameter is illustrated as comprising gears 41, 42, 43, 44 and 45.
  • the shafts of the gears 41, 43 and 45 are coplanar and disposed in an upper horizontal plane viewing FIGURE 4 while the shafts of gears 42 and 44 are coplanar and are disposed in a lowerhorizontal plane viewing that figure.
  • the gear 41 drives through a gear 48 fixed to the shaft 49 carrying the gear 41 a pinion 50 fixed to a shaft 51
  • the gear 42 drives through a gear 52 fixed to the shaft 53 carrying the gear 42 a pinion 54 fixed to a shaft 55
  • the gear 43 drives through a gear 56 fixed to the shaft 57 carrying the gear 43 a pinion 58 fixed to a shaft 59
  • the gear '44 drives through a gear 60 fixed to the shaft 61 carrying the gear 44 a pinion 62 fixed to a shaft 63
  • the gear 45 drives through a gear 64 fixed to the shaft 65 carrying the gear 45 a pinion 66 fixed to a shaft 67.
  • the shaft 57 upon which the gear 43 is mounted is driven by an electric motor or other suitable driving mechanism 46 through a coupling 47. Since the shafts 49, 57 and 65 are coplanar the coupling 47 appears in FIGURE 3 to be in line with the shaft 65 but actually it is in line with and drives the shaft 57.
  • the shafts 51, 55, 59, 63 and 67 are staggered in an interfitting pattern with the staggered shafts 49, 53, 57, 61 and 65, i.e., the axes of the driving shafts 51, 55, 59, 63 and 67 on the one hand and the axes of the shafts 49, 53, 57, 61 and 65 carrying the gears of the train of driving gears on the other hand lie in zigzag lines which cross each other and are relatively displaced longitudinally of the mill a distance equal to the longitudinal distance between the centers of adjacent roll stands.
  • the sizes of the gears and pinions are determined analogously to the sizes of the gears and pinions of FIGURES 1 and 2 todrive the shafts 51, 55, 59, 63 and and 67 at progressively increasing speeds.
  • the shafts 51, 59 and 67 turn in one direction while the shafts 55 and 63 turn in the opposite direction.
  • FIGURE 3 shows the shaft 67 connected through a coupling 68 with the lower roll 39 of one of the stands of rolls of the mill.
  • the shafts 51 and 59 are coupled to the lower rolls of similarly oriented stands of rolls.
  • the shafts 55 and 63 are coupled through couplings such 'as that shown in dotted lines and designated 69 in FIGURE 3 with the upper rolls 40 of similarly oriented stands of rolls in between the stands of rolls 39.
  • FIGURE. 3 There may be three drives for the mill illustrated in FIGURE. 3, the other two drives substantially duplicating the drives shown in FIGURES 3 and 4 but being arranged to drive respectively the other two sets of rolls 39 and 40 disposed in common planes in the mill.
  • FIGURES 5,- 6 and 7 illustrate the application of two drives somewhat like but specifically different from the drive of FIGURES 1 and 2 to a mill having two directly opposed rolls in each pass with the planes of the rolls of successive passes disposed in position turned about the mill axis 90" as shown in FIGURE 5.
  • Rolls oriented like the. rolls 70 and 71 are driven by a drive 72 and rolls oriented like the rolls 73 and 74 are driven by a drive 75.
  • the drive 72 comprises a train of spur gears of substantially the same diamter 76, 77, 78, 79 and 80 respectively fixed to shafts 81, 82, 83, 84 and 85 which are parallel and coplanar.
  • the gears are mounted in a gear box or housing 128.
  • a gear 86 is fixed to shaft 81, a gear 87 is fixed to shaft 83 and a gear 88 is fixed to shaft 85.
  • the gears 86, 87 and 88 are of progressively increasing diameter.
  • Three roll driving shafts 89, 90 and 91 are disposed respectively opposite the shafts 81, 83 and 85.
  • a pinion 92 is fixed to the shaft 89 and meshes with the gear 86.
  • a pinion 93 is fixed to the shaft 90 and meshes with the gear 87.
  • a pinion 94 is fixed to the shaft 91 and meshes with the gear 88.
  • the shaft 83 may be driven by any suitable source of power through a coupling 95. Since the shafts 81, 83 and 85 are coplanar the coupling 95 appears in FIG- URE to be in line with the shaft 85 but actually it is in line with and drives the shaft 83.
  • FIGURE 5 shows at the left-hand side the spur gear 80, the shaft 85, the spur gear 88, the pinion 94 and the shaft 91 which through a coupling 96, a shaft 97, a coupling 98 and a shaft 99 drives the roll 71.
  • Fixed to the shaft 97 is a gear 100 which meshes with the similar gear 101 fixed to a shaft 102 driving the gear 70 through a coupling 103 and a shaft 104.
  • the gears 100 and 101 are mounted in a housing 129.
  • the other stands of rolls coplanar with the rolls 70 and 71 are similarly driven by the shafts 89 and 90. Since the drives for the rolls are taken off of alternate gears of the train of driving gears all of the rolls 70 and 71 are driven in the proper direction.
  • the drive 75 comprises a train of spur gears of substantially the same diameter 105, 106 and 107 respectively fixed to shafts 108, 109 and 110 which are parallel and coplanar.
  • the gears are mounted in a gear box or housing 130.
  • a gear 111 is fixed to shaft 108 and a gear 112 is fixed to shaft 110.
  • the gear 112 is of greater diameter than the gear 111.
  • Two roll driving shafts 113 and 114 are disposed respectively opposite the shafts 108 and 110.
  • a pinion 115 is fixed to the shaft 113 and meshes with the gear 111.
  • a pinion 116 is fixed to the shaft 114 and meshes with the gear 112.
  • any of the shafts 108, 109 and 110 may be driven by any suitable source of power. That source of power may be transmitted through a coupling 117 to, for example, the shaft 109. Since the shafts 108, 109 and 110 are coplanar the coupling 117 appears in FIGURE 5 to be in line with the shaft 110 but actually it is in line with and drives the shaft 109.
  • FIGURE 5 shows at the right-hand side the spur gear 107, the shaft 110, the
  • ' 12c and 130 are arranged on a zigzag line.
  • FIGURE 8 illustrates a drive for a multiple-stand rolling mill similar to the drive of FIGURES 1 and 2 but modified in that of the planar gears numbered consecutively along the mill all the odd numbered gears have the same number of teeth and all the even numbered gears have the same number of teeth but a different number of teeth than the odd numbered gears.
  • the parts shown in FIGURE 8 are respectively analogous to those shown in FIGURE 2 and corresponding parts in the respective figures bear the same reference numerals except that the letter a is added to each numeral in FIGURE 8.
  • FIGURE 8 the gears 14a, 16a and 18a have the same number of teeth and the gears 15a and 17a have the same number of teeth, but the gears 15a and 17a have more teeth than the gears 14a, 16a and 18a. Otherwise the drive of FIGURE 8 is like that of FIGURES 1 and 2.
  • FIGURE 9 illustrates a drive for a multiple-stand rolling mill, similar to the drive of FIGURES 1 and 2 but modified in that the axes of the generally parallel shafts driving the mill rolls are arranged on a zigzag line and the axes of the generally parallel shafts on which the planar gears are respectively mounted are coplanar.
  • the parts shown in FIGURE 9 are respectively analogous to those shown in FIGURE 2 and corresponding parts in the respective figures bear the same reference numerals except that the letter [2 is added to each numeral in FIGURE 9.
  • the shafts 24b, 25b, 26b, 27b and 28b are arranged on a zigzag line and the shafts 9b, 10b, 11b, 12b and 13b are coplanar. Otherwise the drive of FIGURE 9 is like that of FIGURES 1 and 2.
  • FIGURE 10 illustrates a drive for a multiple-stand rolling mill similar to the drive of FIGURES 1 and 2 but modified in that the axes of the generally parallel shafts driving the mill rolls are coplanar and the axes of the generally parallel shafts on which the planar gears are respectively mounted are arranged on a zigzag line.
  • the parts shown in FIGURE 10 are respectively analogous to those shown in FIGURE 2 and corresponding parts in the respective figures bear the same reference numerals except that the letter c is added to each numeral in FIGURE 10.
  • the shafts 24c, 25c, 26c, 27c and 280 are coplanar and the shafts 90, 10c, 11c, Otherwise the drive of FIGURE 10 is like that of FIGURES 1 and 2.
  • FIGURE 11 illustrates a drive for a multiple-stand rolling mill similar to the drive of FIGURES 1 and 2 but modified in that differential gearing connected with a second drive is interposed between each shaft driving a mill roll and the mill roll driven thereby.
  • the parts 20?, 8d, 11d, 16d, 21d, 26d, 31d and 36d are respectively analogous to the parts 2, 8, 16, 11, 21, 26, 31 and 36 shown in FIGURE 1.
  • An auxiliary shaft 132 driven separately from the shaft 11d is journaled in the gear box or housing 8d and has a spur gear 133 fixed thereto.
  • the spur gear 133 meshes with a spur gear 134 integral or connected with a 'bevel gear 135.
  • the spur gear 31d is integral or connected with a bevel gear 136.
  • Bevel gears 137 and 138 are journaled upon mounting elements connected with a shaft 139 and projecting laterally therefrom, which shaft 139 extends to the coupling 36d.
  • the bevel gears 137 and 138 mesh with the bevel gears and 136 to constitute differential gearing whereby the speed of rotation of the shaft 139 is affected by the speed of rotation of the auxiliary shaft 132. Otherwise the drive of FIGURE 11 is like that of FIGURES 1 and 2.
  • a drive for a multiple-stand rolling mill comprising generally parallel shafts driving the mill rolls, a number of planar gears arranged in sequence along the mill, separate generally parallel shafts on which the planar gears are respectively mounted, the planar gears being sequentially in mesh with one another so as to form a continuous gear train along the mill, means for driving such continuous gear train, of the planar gears numbered consecutively along the mill all the odd numbered gears having the same number of teeth and all the even numbered gears having the same number of teeth, and separate planar gear drives from the shafts on which the first mentioned planar gears are respectively mounted to the shafts driving the mill rolls, the transmission ratios of the separate planar gear drives being such that the speeds of rotation of the mill rolls increase in the direction of passage through the mill of material being rolled, the axes of the generally parallel shafts driving the mill rolls and the axes of the generally parallel shafts on Which the planar gears are respectively mounted being all disposed in the same plane.
  • a drive for a multiple-stand rolling mill comprising generally parallel shafts driving the mill rolls, a number of planar gears arranged in sequence along the mill, separate generally parallel shafts on which the planar gears are respectively mounted, the planar gears being sequentially in mesh with one another so as to form a continuous gear train along the mill, means for driving such continuous gear train, of the planar gears numbered consecutively along the mill all the odd numbered gears having the same number of teeth and all the even numbered gears having the same number of teeth, and separate planar gear drives from the shafts on which the first mentioned planar gears are respectively mounted to the shafts driving the mill rolls, the transmission ratios of the separate planar gear drivm being such that the speeds of rotation of the mill rolls increase in the direction of passage through the mill of material being rolled, the axes of the generally parallel shafts driving the mill rolls being arranged on a zigzag line and the axes of the generally parallel shafts on which the planar gears are respectively mounted being coplanar.
  • a drive for a multiple-stand rolling mill comprising generally parallel shafts driving the mill rolls, a number of planar gears arranged in sequence along the mill, separate generally parallel shafts on which the planar gears are respectively mounted, the planar gears being sequentially in mesh with one another so as to form a continuous gear train along the mill, means for driving such continuous gear train, of the planar gears numbered consecutively along the mill all the odd numbered gears having the same number of teeth and all the even numbered gears having the same number of teeth, and separate planar gear drives from the shafts on which the first mentioned planar gears are respectively mounted to the shafts driving the mill rolls, the transmission ratios of the separate planar gear drives being such that the speeds of rotation of the mill rolls increase in the direction of passage through the mill of material being rolled, the axes of the generally parallel shafts driving the mill rolls being coplanar and the axes of the generally parallel shafts on which the planar gears are respectively mounted being arranged on a zigzag line.
  • a drive for a multiple-stand rolling mill comprising generally parallel shafts driving the mill rolls, a number of planar gears arranged in sequence along the mill, separate generally parallel shafts on which the planar gears are respectively mounted, the planar gears being sequentially in mesh with one another so as to form a continuous gear train along the mill, means for driving such continuous gear train, of the planar gears numbered consecutively along the mill all the odd numbered gears having the same number of teeth and all the even numbered gears having the same number of teeth, and separate planar gear drives from the shafts on which the first mentioned planar gears are respectively mounted to the shafts driving the mill rolls, the transmission ratios of the separate planar gear drives being such that the speeds of rotation of the mill rolls increase in the direction of passage through the mill of material being rolled, the axes of the generally parallel shafts driving the mill rolls being arranged on a zigzag line and the axes of the generally parallel shafts on which the planar gears are respectively mounted being arranged on another zigzag line, which
  • a drive for a multiple-stand rolling mill comprising generally parallel shafts driving the mill rolls, a number of planar gears arranged in sequence along the mill, separate generally parallel shafts on which the planar gears are respectively mounted, the planar gears being sequentially in mesh with one another so as to form a continuous gear train along the mill, means for driving such continuous gear train, of the planar gears numbered consecutively along the mill all the odd numbered gears having the same number of teeth and all the even numbered gears having the same number of teeth, and separate planar gear drives from the shafts on which the first mentioned planar gears are respectively mounted to the shafts driving the mill rolls, the transmission ratios of the separate planar gear drives being such that the speeds of rotation of the mill rolls increase in the directron of passage through the mill of material being rolled, the axes of the shafts of at least one of the groups of generally parallel shafts (a) driving the mill rolls and (b) on which the planar gears are respectively mounted being arranged on a zigzag line and, in addition

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Gear Transmission (AREA)
US327991A 1963-03-26 1963-12-04 Drive for a multiple-stand rolling mill Expired - Lifetime US3299685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK49298A DE1283182B (de) 1963-03-26 1963-03-26 Antrieb fuer ein vielgeruestiges Universalwalzwerk, insbesondere Draht- oder Reduzierwalzwerk

Publications (1)

Publication Number Publication Date
US3299685A true US3299685A (en) 1967-01-24

Family

ID=7225210

Family Applications (1)

Application Number Title Priority Date Filing Date
US327991A Expired - Lifetime US3299685A (en) 1963-03-26 1963-12-04 Drive for a multiple-stand rolling mill

Country Status (2)

Country Link
US (1) US3299685A (de)
DE (1) DE1283182B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383898A (en) * 1960-08-01 1968-05-21 Properzi Ilario Continuous rolling mill
US3546915A (en) * 1966-10-21 1970-12-15 Kocks Gmbh Friedrich Drives for multistand universal rolling mills
US3766767A (en) * 1971-02-26 1973-10-23 Textron Inc Multiple roll bridle system
US3844184A (en) * 1973-05-21 1974-10-29 Dominion Eng Works Ltd Load equalized transmission
US4347725A (en) * 1979-04-02 1982-09-07 Friedrich Kocks Gmbh & Co. Rolling blocks
US5035585A (en) * 1988-07-14 1991-07-30 Leybold Aktiengesellschaft Multiple connector for rotation vacuum pumps

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US616092A (en) * 1898-12-20 eynon
US1957317A (en) * 1931-09-22 1934-05-01 Pratt & Whitney Co Tap grinder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747856C (de) * 1940-03-03 1944-10-18 Walzwerk zum Reduzieren von Rohren
DE976308C (de) * 1950-03-27 1963-06-20 Kocks Gmbh Friedrich Universal-, insbesondere Rohr-Reduzierwalzwerk
BE516771A (de) * 1952-02-19
DE1002719B (de) 1954-12-20 1957-02-21 Kocks Gmbh Friedrich Einrichtung zum Aufrechterhalten einer bestimmten Drehzahldifferenz zwischen einem Geruest und dem vorhergehenden Nachbargeruest in kontinuierlich arbeitenden, mehrgeruestigen Walzenstrassen, insbesondere in Rohrreduzierwalzwerken
DE1101327B (de) * 1959-09-12 1961-03-09 Demag Ag Walzwerk, insbesondere Streckreduzier-walzwerk fuer Rohre

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US616092A (en) * 1898-12-20 eynon
US1957317A (en) * 1931-09-22 1934-05-01 Pratt & Whitney Co Tap grinder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383898A (en) * 1960-08-01 1968-05-21 Properzi Ilario Continuous rolling mill
US3546915A (en) * 1966-10-21 1970-12-15 Kocks Gmbh Friedrich Drives for multistand universal rolling mills
US3766767A (en) * 1971-02-26 1973-10-23 Textron Inc Multiple roll bridle system
US3844184A (en) * 1973-05-21 1974-10-29 Dominion Eng Works Ltd Load equalized transmission
US4347725A (en) * 1979-04-02 1982-09-07 Friedrich Kocks Gmbh & Co. Rolling blocks
US5035585A (en) * 1988-07-14 1991-07-30 Leybold Aktiengesellschaft Multiple connector for rotation vacuum pumps

Also Published As

Publication number Publication date
DE1283182B (de) 1968-11-21

Similar Documents

Publication Publication Date Title
US2757556A (en) Gear drive for rolling mill
US3299685A (en) Drive for a multiple-stand rolling mill
MX9204079A (es) Molino de laminacion.
US5921152A (en) Optional multi-ratio gear transmission system
GB1443327A (en) Rolling mill
US3129618A (en) Continuous rolling mill drive
US5280714A (en) Finishing block with dual speed sizing capability
US4000637A (en) Rolling mills
US2120539A (en) Rolling mill
JP3321353B2 (ja) 棒鋼・線材の圧延方法およびそれに用いる圧延設備
US8171767B2 (en) Modular rolling mill
US1412261A (en) Rolling mill
US3373635A (en) Drive mechanism for two rolling frames of a tube reducing rolling mill
US372747A (en) Reversing rolling-mill
US2041271A (en) Rolling mill
US1451060A (en) Rolling mill
US3391562A (en) Rolling mills
JPH1052705A (ja) ワイヤ、棒、管又は偏平金属圧延材の圧延のための圧延ブロック
US3546915A (en) Drives for multistand universal rolling mills
USRE15692E (en) Continuous tube rolling mill
GB1134292A (en) Continuous rolling mill
US1408791A (en) Machine for straightening pipes, rods, and the like
SU778829A1 (ru) Непрерывный сортовой прокатный стан
US2023231A (en) Rolling mill driving means
US412915A (en) Rod-rolling mill