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EP2676745B1 - Dispositif de déformation d'une pièce usinée - Google Patents

Dispositif de déformation d'une pièce usinée Download PDF

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Publication number
EP2676745B1
EP2676745B1 EP13170216.9A EP13170216A EP2676745B1 EP 2676745 B1 EP2676745 B1 EP 2676745B1 EP 13170216 A EP13170216 A EP 13170216A EP 2676745 B1 EP2676745 B1 EP 2676745B1
Authority
EP
European Patent Office
Prior art keywords
tool
drive shaft
axial section
axial
section
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.)
Active
Application number
EP13170216.9A
Other languages
German (de)
English (en)
Other versions
EP2676745B8 (fr
EP2676745A1 (fr
Inventor
Michael Esposito
Aljoscha Langenohl
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.)
SMS Group GmbH
Original Assignee
SMS Meer GmbH
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 SMS Meer GmbH filed Critical SMS Meer GmbH
Publication of EP2676745A1 publication Critical patent/EP2676745A1/fr
Application granted granted Critical
Publication of EP2676745B1 publication Critical patent/EP2676745B1/fr
Publication of EP2676745B8 publication Critical patent/EP2676745B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/16—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means
    • 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
    • B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
    • B21B35/141—Rigid spindle couplings, e.g. coupling boxes placed on roll necks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • 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
    • B21B13/005—Cantilevered roll stands

Definitions

  • the invention relates to a device for forming a workpiece, comprising a drive shaft rotatable about a rotation axis and a tool attached thereto, in particular a roller, wherein a positive connection, in particular a splined connection, between the drive shaft and the tool is present, with a torque can be transmitted from the drive shaft to the tool.
  • connection between the drive shaft and the roller is currently produced by a toothed fit.
  • the rolling forces and moments are transmitted over a small space.
  • a sohnellen and simple roll change is of great importance, so that a high efficiency of processing can be ensured, the use of splined shaft connections has proven very useful in this context.
  • a disadvantage is that in the application mentioned the connection of a roller on a drive shaft high wear of the connection is present, so that after a certain life components must be replaced to reliably accomplish the transmission of radial forces and torques. Namely, both the radial forces and the torques must be transmitted in a relatively small space, which causes corresponding problems in terms of susceptibility to wear.
  • EP 1 378 298 A2 discloses an improved roller assembly of the so-called "overhang” type in which annular roller discs with cylindrical bores are slid onto a journal sleeve which is mounted on a tapered roll neck.
  • the European patent application EP 0 321 139 A1 also discloses an improved roller assembly of the so-called "overhang" type.
  • a bearing assembly for a double stepped roll neck roll In the region of its first inner gradation of the roll neck is tapered or tapered.
  • the roll neck carries there a pin bushing.
  • the spigot bush is surrounded by a ring.
  • the British patent application GB 2 019 528 A1 discloses an apparatus for forming a workpiece.
  • the device comprises a drive shaft rotatable about a rotation axis and a tool fastened thereto, in particular a roller.
  • a positive connection in particular a toothed shaft connection, between the drive shaft and the tool present, with the torque from the drive shaft can be transmitted to the tool.
  • the positive connection extends over a first axial section. Outside the first axial section there is a second axial section as well as a third axial section in which the drive shaft and the tool have cooperating mating surfaces adapted to transmit radial forces.
  • the invention has the object of providing a device of the type mentioned in such a way that with respect to the above-mentioned disadvantages remedy is created. It should therefore be achieved that the wear of the connection between the drive shaft and roller is substantially reduced, which should result in an increase in service life of the device in order to reduce the operating costs accordingly.
  • the positive connection is preferably arranged at a radial distance from the axis of rotation, which is smaller than the radial distance of the first cylindrical mating surfaces of the axis of rotation.
  • the positive connection is preferably arranged at a radial distance from the axis of rotation which is greater than the radial distance of the second cylindrical mating surfaces from the axis of rotation.
  • the positive connection, at least one of the first cylindrical mating surfaces or at least one of the second cylindrical mating surfaces are advantageously provided with a wear-resistant coating.
  • a tie rod may be screwed, which presses for the purpose of axial fixing of the tool on the drive shaft with a flange-like enlarged portion on a frontally arranged contact surface of the tool.
  • This end-side contact surface may in particular be an end face of the sleeve.
  • a number of screws, in particular grub screws, which are screwed into threaded bores located in the flange-like enlarged section, can be arranged in the flange-like enlarged section, wherein the screws have with their one axial end the abutment-side contact surface of the tool, in particular an end face of the sleeve. to press.
  • a rolling device for forming a rolling stock results in a very advantageous manner that the wear of the connection between the drive shaft and tool can be significantly reduced.
  • the functions of torque transmission on the one hand and the transmission of radial forces on the other hand is decoupled. By relieving radial forces, the toothed shaft connection is enabled to transmit high torques with much less wear and tear.
  • the equipment with wear-resistant surface coatings and the use of optimal lubricants promote the reduction of wear.
  • a backlash-free axial attachment is further provided, which equally ensures that the wear of the device is minimized.
  • the proposed tool is used in particular in the hot forming, since here the benefits mentioned in a special way.
  • the proposal according to the invention permits transmission of the transverse forces (that is to say the radial forces) via now separate mating surfaces.
  • the axial forces are transmitted in isolation from this via the tie rod (threaded bolt).
  • the transmission of the torque between the drive shaft and roller takes place exclusively by the toothed shaft connection, which, however, according to the invention must transmit only the torques and is kept free of other forces, in particular of radial forces, which leads to the desired significant increase in service life.
  • the lubrication of the device is also a not insignificant aspect.
  • FIG. 1 An embodiment of the invention is shown.
  • the single figure shows in partial radial section a device for forming a workpiece with a drive shaft and a roller attached thereto.
  • a device 1 for forming a (not shown) workpiece or rolling stock is shown.
  • the device 1 comprises a drive shaft 2 which is rotatable about a rotation axis a.
  • a tool 3 is fixed in the form of a roller.
  • the attachment is made detachable, so that the roller can be removed from the drive shaft 2 and replaced by another.
  • connection between the drive shaft 2 and roller 3 is designed so that both torques from the drive shaft 2 to the roller 3, as well as with respect to the axis of rotation a radial and axial forces can be transmitted.
  • said connection is designed so that once torques about the axis of rotation a, then radial forces between the drive shaft 2 and the roller 3 and finally axial forces between the drive shaft 2 and the roller 3 can be transmitted separately and isolated from each other.
  • a positive connection 4 in the form of a splined shaft connection.
  • the toothed shaft connection 4 extends over a first axial section 5, which is chosen with respect to its extension so that the required torques can be transmitted reliably.
  • the spline connection is kept completely free of radial and axial forces.
  • the radial forces are transmitted via two other axial sections, namely via a second axial section 6 and a third axial section 9.
  • respective cylindrical mating surfaces are arranged on both the drive shaft 2 and the roller 3, which tolerates each other are, so that a defined transmission of radial forces is possible.
  • the drive shaft 2 in the second axial portion 6 a first cylindrical mating surface 7, which with a first cylindrical mating surface 8 of the tool. 3 interacts.
  • the drive shaft 2 in the third axial section 9 has a second cylindrical mating surface 10, which cooperates with a second cylindrical mating surface 11 of the tool 3.
  • the second cylindrical fitting surface 11 is formed by a sleeve 12, which is inserted in a bore 13 in the roller 2. More specifically, the sleeve 12 is fixed in the bore 13 by a thermal shrinking operation.
  • the transmission of axial forces finally takes place - again isolated from the torque transmission and from the transmission of radial forces - by a tie rod 15 which is screwed in a central thread 14 of the drive shaft 2 with a threaded portion.
  • the tie rod 15 has in its one axial end a flange-like enlarged portion 16 which is formed to abut against a frontally arranged contact surface 17 of the roller 3.
  • the frontal contact surface is formed by the one end face of the sleeve 12.
  • the flange-like enlarged portion 16 has a number of threaded holes on its circumference, are screwed into the grub screws 18. The screws are tightened until their one axial ends abut against the end face of the sleeve 12 with sufficient bias.
  • the radial distance r 1 of the toothed shaft connection 4 is smaller than the radial distance r 2 of the cylindrical first mating surfaces 7, 8 in the first axial section 5.
  • the radial distance r 1 of the spline connection 4 is greater than the radial distance r 3 of the cylindrical second fitting surfaces 10, 11 in the third axial section 5.
  • shrinking the sleeve 12 results in a problem-free way in the production of the tooth profile of the spline connection 4 in the roller 3.
  • the profile can namely made before shrinking the sleeve 12 in a simple manner, for. B. milled and ground, as is given without a sleeve 12, a free outlet for the necessary tool for this purpose. Subsequently, only the sleeve 12 is inserted (shrunk) and the roller 3 is thus put into the usable state.
  • All surfaces which are under load during operation of the device 1 can be coated so that long service lives can be achieved.
  • a lubricant may be introduced, so that the spline connection can operate under optimum lubrication conditions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Flexible Shafts (AREA)
  • Forging (AREA)

Claims (7)

  1. Dispositif (1) pour le façonnement d'une pièce à usiner, comprenant un arbre d'entraînement (2) rotatif autour d'un axe de rotation (a) et une pièce à usiner (3) fixée à l'arbre en question, en particulier un cylindre de laminage, dans lequel on prévoit une liaison (4) par complémentarité de forme, en particulier une liaison du type à arbre denté, entre l'arbre d'entraînement (2) et la pièce à usiner (3), avec laquelle on peut transférer un couple de rotation de l'arbre d'entraînement (2) à la pièce à usiner (3), la liaison (4) par complémentarité de forme s'étendant sur un premier tronçon axial (5), un deuxième tronçon axial (6) étant présent à l'extérieur dudit premier tronçon axial (5), dans lequel l'arbre d'entraînement (2) et la pièce à usiner (3) présentent des premières surfaces d'ajustement cylindriques (7, 8) entrant en interaction, qui sont réalisées pour le transfert de forces radiales, et un troisième tronçon axial (9) étant prévu à l'extérieur du premier tronçon axial (5) et à l'extérieur du deuxième tronçon axial (6), dans lequel l'arbre d'entraînement (2) et la pièce à usiner (3) présentent des deuxième surfaces d'ajustement cylindriques (10, 11) entrant en interaction, qui sont réalisées pour le transfert de forces radiales, caractérisé en ce que la deuxième surface d'ajustement cylindrique (11) de la pièce à usiner est formée par une douille (12) qui est disposée dans la pièce à usiner (3) et en ce que la douille (12) vient s'insérer par ajustage serré dans un alésage (13) de la pièce à usiner, l'ajustage serré étant réalisé en particulier via un processus de retrait.
  2. Dispositif selon la revendication 1, caractérisé en ce que la liaison (4) par complémentarité de forme est disposée à une distance radiale (r1) de l'axe de rotation (a) qui est inférieure à la distance radiale (r2) des premières surfaces d'ajustement cylindriques (7,8) par rapport à l'axe de rotation (a).
  3. Dispositif selon la revendication 1, caractérisé en ce que le premier tronçon axial (5) est disposé entre le deuxième tronçon axial (6) et le troisième tronçon axial (9), un lubrifiant étant de • préférence introduit dans la zone s'étendant entre le deuxième tronçon axial (6) et le troisième tronçon axial (9).
  4. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la liaison (4) par complémentarité de forme est disposée à une distance radiale (r1) de l'axe de rotation (a) qui est supérieure à la distance radiale (r3) des deuxièmes surfaces d'ajustement cylindriques (10, 11) par rapport à l'axe de rotation (a).
  5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la liaison (4) par complémentarité de forme et/ou au moins une des premières surfaces d'ajustement cylindriques (7, 8) et/ou au moins une des deuxièmes surfaces d'ajustement cylindriques (10, 11) sont munies d'un revêtement résistant à l'usure.
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un tirant (15) est inséré par vissage dans un alésage central (14) de l'arbre d'entraînement (2), qui exerce une pression, à des fins de fixation axiale de la pièce à usiner (3) contre l'arbre d'entraînement (2), avec un tronçon agrandi (16) en forme de bride sur une surface d'appui (17) de la pièce à usiner (3), disposée du côté avant, en particulier sur un côté avant de la douille (12).
  7. Dispositif selon la revendication 6, caractérisée en ce qu'une série de vis (18), en particulier des vis sans tête, sont disposées dans le tronçon agrandi (16) en forme de bride, qui sont insérées par vissage dans des alésages taraudés disposés dans le tronçon agrandi (16) en forme de bride, les vis (18) exerçant une pression avec leurs extrémités axiales respectives sur la surface d'appui (17) de la pièce à usiner (3) disposée du côté avant, en particulier sur un côté avant de la douille (12).
EP13170216.9A 2012-06-20 2013-06-03 Dispositif de déformation d'une pièce usinée Active EP2676745B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012012293.4A DE102012012293B4 (de) 2012-06-20 2012-06-20 Vorrichtung zum Umformen eines Werkstücks

Publications (3)

Publication Number Publication Date
EP2676745A1 EP2676745A1 (fr) 2013-12-25
EP2676745B1 true EP2676745B1 (fr) 2016-08-10
EP2676745B8 EP2676745B8 (fr) 2016-09-28

Family

ID=48578814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13170216.9A Active EP2676745B8 (fr) 2012-06-20 2013-06-03 Dispositif de déformation d'une pièce usinée

Country Status (8)

Country Link
US (1) US9868141B2 (fr)
EP (1) EP2676745B8 (fr)
JP (1) JP5892979B2 (fr)
KR (1) KR101524531B1 (fr)
CN (1) CN103511477B (fr)
DE (1) DE102012012293B4 (fr)
ES (1) ES2602294T3 (fr)
RU (1) RU2570255C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUE029814T2 (en) * 2012-12-07 2017-03-28 Primetals Technologies Austria GmbH Cylindrical roller drum machine
GB2557609B (en) * 2016-12-12 2023-01-18 Pandrol Ltd A variable diameter fastener for a railway rail fastening assembly
CN109500094A (zh) * 2018-12-12 2019-03-22 唐山钢铁集团有限责任公司 一种用于型钢万能轧机压下机构的离合器

Family Cites Families (18)

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Publication number Priority date Publication date Assignee Title
GB2019528B (en) 1978-04-21 1982-07-14 Davy Loewy Ltd Shaft couplings
NL7804384A (nl) * 1978-04-25 1979-10-29 Vredestein Nv Stootkussen, respektievelijk plug voor een stootkussen.
DE2832966A1 (de) * 1978-07-27 1980-02-21 Schloemann Siemag Ag Einrichtung zum drehfesten verbinden von mit wellen oder wellenzapfen umlaufenden maschinenteilen, beispielsweise walzen
DE3246233A1 (de) * 1982-12-14 1984-06-14 Uni-Cardan Ag, 5200 Siegburg Vorrichtung zum uebertragen eines drehmomentes
US4813113A (en) * 1987-12-16 1989-03-21 Morgan Construction Company Overhung roll assembly
DE8805632U1 (de) * 1988-04-28 1988-06-09 SEW-EURODRIVE GmbH & Co, 7520 Bruchsal Vorrichtung zur koaxialen drehfesten Verbindung zweier Teile
US5163816A (en) * 1991-07-12 1992-11-17 General Motors Corporation Wheel lock, centering and drive means and turbocharger impeller combination
JP3193892B2 (ja) * 1997-07-30 2001-07-30 住友重機械工業株式会社 ミルドライブカップリング
RU2119834C1 (ru) * 1997-10-07 1998-10-10 Открытое акционерное общество "Северсталь" Узел подвижного шлицевого соединения трансмиссии
US5934131A (en) * 1998-08-10 1999-08-10 Morgan Construction Company Overhung roll assembly
RU2153404C2 (ru) * 1998-11-12 2000-07-27 Открытое акционерное общество "Северсталь" Шпиндель прокатного стана
US6599052B1 (en) * 1999-09-30 2003-07-29 Reliance Electric Technologies, Llc Hub and shaft coupling system
US6526795B1 (en) * 2000-05-09 2003-03-04 Mario Fabris Expanding spline drive for high torque
CA2429264A1 (fr) * 2002-07-01 2004-01-01 Michael J. Eldredge Rouleau de laminoir
JP4044388B2 (ja) * 2002-08-05 2008-02-06 Ｎｔｎ株式会社 駆動車輪用軸受装置
DE10261057A1 (de) * 2002-12-24 2004-07-22 Sms Meer Gmbh Walzenanordnung für ein Walzwerk
JP5072278B2 (ja) * 2006-07-18 2012-11-14 三菱重工業株式会社 油圧着脱式カップリング
WO2008111525A1 (fr) * 2007-03-07 2008-09-18 Ntn Corporation Dispositif de palier pour roue motrice et son procédé d'assemblage

Also Published As

Publication number Publication date
JP2014000606A (ja) 2014-01-09
EP2676745B8 (fr) 2016-09-28
DE102012012293B4 (de) 2017-10-26
KR101524531B1 (ko) 2015-06-01
RU2570255C2 (ru) 2015-12-10
JP5892979B2 (ja) 2016-03-23
US20130343804A1 (en) 2013-12-26
KR20130142901A (ko) 2013-12-30
US9868141B2 (en) 2018-01-16
RU2013128244A (ru) 2014-12-27
ES2602294T3 (es) 2017-02-20
EP2676745A1 (fr) 2013-12-25
DE102012012293A1 (de) 2013-12-24
CN103511477A (zh) 2014-01-15
CN103511477B (zh) 2016-12-28

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