EP2450115A2 - Laminoir, cage de laminoir et procédé de changement de cages de laminoir dans un laminoir - Google Patents

Laminoir, cage de laminoir et procédé de changement de cages de laminoir dans un laminoir Download PDF

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Publication number
EP2450115A2
EP2450115A2 EP11008697A EP11008697A EP2450115A2 EP 2450115 A2 EP2450115 A2 EP 2450115A2 EP 11008697 A EP11008697 A EP 11008697A EP 11008697 A EP11008697 A EP 11008697A EP 2450115 A2 EP2450115 A2 EP 2450115A2
Authority
EP
European Patent Office
Prior art keywords
rolling
stand
change
roll stand
drive
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.)
Withdrawn
Application number
EP11008697A
Other languages
German (de)
English (en)
Other versions
EP2450115A3 (fr
Inventor
Gabriele Vieten
Jovo Subanovic
Walter Höffgen
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 EP2450115A2 publication Critical patent/EP2450115A2/fr
Publication of EP2450115A3 publication Critical patent/EP2450115A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • 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
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/10—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane
    • B21B13/103—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane for rolling bars, rods or wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49815—Disassembling
    • Y10T29/49817—Disassembling with other than ancillary treating or assembling

Definitions

  • the invention relates to a rolling mill for rolling elongated material with a plurality of arranged in line, forming a central caliber opening rolling stands, wherein the rolling stands are each arranged in a scaffold and each to at least one change position are displaced and in particular a rolling mill in a compact design for rolling elongate Good , with several arranged in line, a central caliber opening forming, motor-driven rolling stands in a mutually mountable C-stand.
  • the invention relates to a rolling stand with at least two driven rollers (2, 3) and with at least two drives and a roll stand with rollers for receiving rolling forces that occur during rolling of elongated material, and a method for changing rolling stands (12) in a rolling mill.
  • the invention is particularly applicable to stretch-reduction mills (SRW-BCO), sizing mills (MW-BCO) and extension mills (AZW-BCO).
  • SRW-BCO stretch-reduction mills
  • MW-BCO sizing mills
  • AZW-BCO extension mills
  • Mills for rolling elongated material are known both with 2-roll stands as well as with 3-roll stands or 4-roll stands, and a setting of the rolls for changing the caliber diameter is also known.
  • 2-roll stands the offset is 90 °, in the 3-roll stand 60 ° and in the 4-roll stand 45 °.
  • the invention has for its object to provide a generic rolling mill, a generic rolling stand and a generic method for changing rolling stands in a rolling mill, which allow the most compact possible design a reliable turn of the rolling stands.
  • a rolling mill for rolling elongated material is arranged with a plurality of rolling mills arranged in line, forming a central caliber opening, wherein the rolling mills are each arranged in a scaffold and are each displaced to at least one change position and wherein the rolling mill thereby
  • each scaffolding station has an input clutch and the input clutch having roller stand side coupling part and a drive-side coupling part and the drive-side coupling part is provided axially fixed to the frame site.
  • a rolling mill with a input clutch can also be advantageously configured by two input clutches per rolling stand and each scaffold, the two input clutches each axially to their axes of rotation and the axes of rotation are aligned in parallel and wherein both input clutches are arranged on one side of the line.
  • a rolling mill or a rolling mill according to this embodiment just as easy and reliable prepare or put into operation, as if only a single input clutch is provided because the mutually aligned input clutches are handled as a single clutch.
  • the two input clutches which may have a common or even two individual drives, are coupled in a single assembly step, in particular, only the rolling stand needs to be moved.
  • a drive with a drive motor can be provided in addition to at least one scaffold place, with a drive Transfer case is connected, which has at least two outputs, wherein the outputs each have a drive-side coupling part of a input clutch.
  • the drive-side coupling parts can be aligned parallel and in the same direction at the rolling mill.
  • these may also be provided with only lower output side coupling parts, if only lower torques are needed, in the areas where further drive-side coupling parts are to be found, structural clearances are left, so that these coupling parts can run freely.
  • a parallel and co-directional alignment of these drive-side coupling parts also advantageously brings a high degree of flexibility in the selection of the drives.
  • either a single or multiple drives can be coupled to the rolling stand, in particular, only the rolling stand needs to be moved for engaging, but this does not necessarily have to be provided.
  • a “transfer case” refers to any transmission that has more outputs than drives, regardless of whether a power split - due to different speeds at the drives - occurs.
  • a transfer case can also be a spur gear.
  • Preferential meadow are, as for example from JP 57-121810 A known, the respective rolling stands are arranged in each case in a scaffold and are each displaced to at least one change position and wherein each scaffold exactly one exchange position is provided and a change position of a first scaffolding site on one side of the line as a change position of a second scaffolding site on the other side the line is provided.
  • the changing positions in relation to the scaffolding places make possible a particularly compact rolling mill, in which a mill stand change takes place correspondingly reliably and quickly can be.
  • a suitable embodiment in particular, a powerful rolling mill in compact design for rolling elongated Good, with several arranged in line, a central caliber opening forming, motor-driven rolling stands and a method for easy change of the rolling stands in a confined space to create.
  • a variety of rolling mill types can be used with a suitable embodiment.
  • the input clutches of the rolling stands can, as will be explained in detail below, couple independently when inserted into the rolling mill stand.
  • the drives can, as already indicated above, be accommodated to save space. For the method of change car can be kept low with a suitable design of the space requirement.
  • the scaffolding places may be numbered along the line, all odd-numbered change positions being on one side of the line and all even-numbered changing positions on the other side of the line. It is immediately apparent that in this embodiment, the scaffolding places can be arranged in a particularly space-saving manner in the rolling direction by the alternating arrangement of the change positions and thus uniform space for assembly and set-up work is provided on both sides of the change positions.
  • the change positions of the respective rolling stands can be provided on a change carriage in a rolling mill, wherein the change carriage has at least one further change position.
  • This further change position serves to keep ready a rolling mill to be loaded.
  • a roll stand to be removed from the rolling mill after rolling can thus be guided to a first change position, after which the rolling stand provided on the further change position can be returned to the scaffolding spot in immediate connection, and the change carriage is correspondingly displaced.
  • the set-up times at the rolling mill are reduced to a minimum.
  • the rolling mill can be put into operation again immediately after the change of the rolling stands, wherein the removed rolling stand after commissioning of the rolling mill of its further use, for example, a maintenance, can be supplied.
  • a rolling mill with a change carriage which has two change positions, be advantageously designed in such a way that the change carriage has at least four change positions, one change position and another change position for every two scaffold positions, the two change positions corresponding to the distance of the two Scaffolding places and the other two change positions are spaced apart according to the distance of the two scaffolding sites. It can be seen that this advantageously a change of two rolling stands on the two scaffolding places can be done simultaneously. It is also possible, moreover, for the change carriage to have change positions and further change positions for all roll stands available on a rolling mill, which can be loaded simultaneously from one side of the line.
  • a change carriage with two or more change positions also independent of the other features for a rolling mill for rolling elongated Good arranged with several in line, forming a central caliber opening rolling stands, the rolling stands are each arranged in a scaffolding and each to at least one change position are displaced, is advantageous. This is independent of whether the two change positions are only used for one scaffolding site or for two scaffolding sites. If these are used for only one scaffold place, a fast and reliable scaffolding change takes place in a confined space by a rolling stand, which is held on the change carriage on the first change position, can be quickly positioned by displacing the change carriage, that this to the intended Scaffolding station spent and the operation can be resumed quickly after the replacement scaffold has been moved to the second change position.
  • the rolling mill Preferably, as for example from JP 57-121810 A known, arranged at least one rolling stand on a shuttle shoe and the change shoe on a tilted relative to the horizontal exchange path.
  • the use of a shuttle shoe in conjunction with a change path offers the advantage of positioning the rolling mill easily and reliably within the rolling mill, in particular at the mill site of the rolling mill, even if the rolls of the individual rolling stands are inclined relative to one another in their rolling position.
  • the inclination angle can be specified by the inclination of the exchange path, which may possibly also be adjustable, so that the rolling stands themselves can be constructed simply and preferably even identical or very similar to one another. It can be provided that the positioning of the rolling stand with the flexible shoe advantageously takes place at right angles to the rolling direction of the rolling mill.
  • the rolling mill which Contains rollers as rolling tools, aligned to the rolling stock and requires at a play-free displacement of the shuttle shoe on the exchange path no or extremely low adjustments.
  • a rolling mill in an advantageous embodiment may have a change path, which has a region inclined relative to the horizontal and a substantially horizontal region.
  • set-up work can be carried out simply and reliably in the horizontal area.
  • the energy input for horizontal displacements is minimal, so that in this area can be relocated with a correspondingly low energy expenditure.
  • the substantially horizontal region of the exchange path is provided on a change carriage.
  • a change carriage This allows in particular a simple construction of the swap body, wherein a roll stand provided on the change carriage can readily be held in position by corresponding detents, such as wedges, brake pads, stops or the like.
  • the region of the exchange path inclined relative to the horizontal is provided in the framework stand and inclines downward into the stand.
  • the corresponding positioning in the rolling position in the scaffold place and can be implemented structurally simple by a fixed stop or the like at the end of the exchange path ending in the framework place.
  • An advantageous embodiment of the rolling mill results further, if at least one rolling stand has a drive and the input via an axial input clutch with a drive motor can be coupled, wherein the input clutch has a roll stand side coupling part and a drive-side coupling part and wherein a rotation axis of the input coupling parallel to the exchange path is aligned.
  • This embodiment of the rolling mill in particular the design of the coupling parallel to the exchange path, allows a particularly simple and above all self-locking coupling possibility of the rolling mill or the input drive to the drive motor or a gear of the drive motor and is independent of the other features of the present invention in a rolling mill for rolling elongated material with a plurality of arranged in line, a central caliber opening forming rolling stands, wherein the rolling stands are each arranged in a scaffold and each along a change path to at least one change position are displaced, correspondingly advantageous to ensure a fast and reliable roll change.
  • a rolling mill may advantageously comprise at least one mill stand extractor with a hydraulic pull-out cylinder.
  • a pull-out unit is advantageous for the fast and reliable setup of a rolling mill, as can be dispensed with a manual setup, for example, by manually hooking chains and the like.
  • a rolling mill with at least two driven rollers and at least two drives is proposed accordingly, which is characterized in that each input has a rolling mill side coupling part and the rolling stand side coupling parts are aligned parallel and in the same direction.
  • the rolling stand can be coupled from one side with a drive or with multiple drives structurally simple, space-saving and reliable, in particular, only the rolling mill needs to be moved.
  • a movement of the roll stand for coupling does not necessarily have to be provided.
  • a drive for coupling the respective coupling parts may be provided axially to the rolling stand on a rolling mill or on a scaffold place, but this requires further units and therefore a susceptibility to errors and an increased space.
  • a rolling stand with at least four driven rollers is proposed to solve the above-mentioned problem, which is characterized in that two rollers are mounted on a common frame part, wherein the two frame parts are in turn mounted on a scaffold body ,
  • the object in question is achieved in this case that can absorb and distribute high scaffolding moments and rolling forces through the rolling stand particularly advantageous and reliable.
  • each frame part On a roll stand with four driven rollers, it is particularly advantageous for each frame part to have an input drive and two rollers aligned perpendicular to one another, for example a horizontal and a vertical roller.
  • the rolls can be operatively connected to one another on a roll stand via two meshing bevel wheels, preferably with a cone angle of 45 °.
  • the two meshing bevel gears of a roll stand can be arranged in a cassette.
  • a roll stand with rolls for receiving rolling forces which occur during rolling of elongated material which comprises a framework body having at least two scaffold plates, wherein the scaffold plates are parallel to one another and perpendicular to the rolling forces are arranged, distinguished.
  • the provision of two scaffold plates according to the proposed arrangement causes a very stable design of a rolling stand, which also can be produced with little cost of materials and therefore very inexpensive.
  • a roll stand for receiving rolling forces which occur during rolling of elongated material which is characterized by a hydraulic overload protection.
  • hydraulic overload safety devices which can be provided according to the number of rollers on a roll stand, make it possible, on the one hand, to restore the rolling stand to a ready-to-operate state in a simple manner. This can be done after setting up a rolling mill with a rolling mill or even after a shutdown due to an overload by simply built up according to pressure.
  • hydraulic overload cylinders of at least one rolling stand can communicate with one another, they can advantageously, for example in the event of a malfunction, enable simultaneous triggering of all existing overload cylinders.
  • a method for changing rolling stands in a rolling mill which is characterized in that at least one rolling stand is displaced along an inclined trajectory.
  • the roll stand is lowered along the inclined exchange path in a rolling position. It will be readily apparent that lowering the mill stand along the inclined change path to a rolling position enables automatic locking or positioning of the mill stand, as self-displacement of the same out of the change path is prevented by the action of gravity, as already explained in detail above.
  • a method for changing rolling stands in a rolling mill which is characterized in that at least one rolling stand from its rolling position to one side and another rolling mill from its rolling position to another Page be relocated.
  • a method for changing rolling stands in a rolling mill is proposed, which is characterized in that at least two rolling stands are shifted from their rolling position to a common side and to changing positions, which are spaced from each other by at least one rolling stand width.
  • the “rolling stand width" of the rolling stands is the longitudinal extent of the rolling stands along a rolling axis or the rolling direction.
  • the rolling stand width extends axially to a main extension direction of the rolling mill.
  • both rolling stands are displaced together with at least one further roll stand around a roll stand width, before the further roll stand is then shifted to its rolling position.
  • This displacement which is effected axially along the rolling mill, causes a positioning of the further rolling stand without the first Both rolling stands must be removed.
  • a method for changing rolling stands in a rolling mill is proposed, which is characterized in that at least one input of a rolling mill is connected via a drive coupling with a drive to a scaffold place by a drive-side coupling part remains stationary and the rolling stand is displaced with the rolling stand side coupling part such that the input clutch closes.
  • Each scaffolding station 57 is assigned its own controllable drive motor 51 and a transfer case 52, each with two drives, to a respective rolling stand located on the scaffolding station 57 in a rolling position 61.
  • the drive motors 51 rest on a foundation 50, which also carries the scaffolding places 57.
  • the rolling stands 12 of the even-numbered scaffold places 57 are arranged inclined in this embodiment in the rolling stand within the rolling line by 22.5 ° to a roll axis 17 corresponding to the rolling axis with respect to the horizontal.
  • the rolling stands 12 of the odd-numbered scaffolding places 57 in the rolling stand are offset within the rolling line by -22.5 ° relative to a rolling axis corresponding to the rolling direction 17 with respect to the horizontal.
  • a roll stand 12 is offset to the next adjacent roll stand 12 in each case by 45 ° about the rolling axis.
  • the individual stands 12 sit in this embodiment each on a guided change shoe 53 with rollers.
  • This special changing device allows a framework change in a few minutes in a confined space.
  • the rolling stand change of the even-numbered scaffolding places 57 takes place in the rolling direction 17 from the right side of the rolling line.
  • the rolling stand change the odd-numbered scaffolding places takes place in the rolling direction 17 from the left side of the rolling line.
  • On each side of the rolling mill is an on unnumbered rails, which are supported by the foundation, displaceable changing carriage 54 for receiving both the up to a change in use rolling stands 12 as well as prepared for use rolling stands 12.
  • a rolling stand extractor 55 with a hydraulic Ausziehzylinder each mounted on the foundation 50. The change of the individual rolling stands 12 is easily possible with the aid of these rolling stand extraction devices 55.
  • the rolling stands 21 in use are pulled to change with the cylinder of the rolling stand extractor 55 from the rolling stand or from their framework place 57 on the respective change carriage 54, wherein they describe on a change path 60 an arc and from the inclined position of 22.5 ° or . 22.5 ° in their change position 61 reach their horizontal position on the change carriage 54 in a change position 58. Thereafter, the change carriage 54 moves along the rolling direction 17 by a stand distance.
  • the rolling stands 12 provided for replacement are located in front of the rolling mill stand opening or with their changing position 59 in front of the scaffolding place 57 and can be pushed with the cylinder of the rolling stand pull-out device 55 to the stand space 57 in the rolling position 61 within the rolling stand.
  • the automatic coupling of the input clutches is facilitated by the inclined position of the exchange path 60 of 22.5 ° or -22.5 ° in the region of the rolling position 61, since no further forces are required for the dome operation due to gravity.
  • the rolling stand extractor 55 thus requires only a fraction of the drive power for retracting the rolling stands 12 into the rolling positions 57 than for extending the rolling stands 12 after use.
  • the inclined trajectory 60 requires a high level of operational reliability during rolling, since the rolling stands 12 abut against the respective frame place 57 due to their own weight and are positioned in this way. In that respect, if necessary, how In particular, in this embodiment, an additional backup for positioning the rolling stands 12 omitted.
  • the rolling mills 12 removed from the rolling mill which are now stored correspondingly displaced on the change carriage 54, can be taken from the change carriage 54 with a crane after resuming the rolling operation, fed to a further use and replaced by new rolling mills 12.
  • Other measures, such as an immediate maintenance or the like may possibly be made there.
  • the interchangeable shoes 53 preferably remain on the change carriage 54 when the rolling stands 12 are removed from the change carriage 54. It is clear on the basis of the two change positions 58, 59 on the common change carriage 54, that the set-up time and thus the downtime of the rolling mill are reduced to a minimum, since the actual transport of the rolling stands 12 to the rolling mill and decoupled away from the mill away from the actual setup is.
  • the alternating arrangement of the rolling stands 12 along the rolling line or along the rolling direction 17 offers, as the FIG. 1 can be removed, the other already mentioned advantage that the rolling stands 12 are mutually offset by 45 ° to the rolling axis.
  • a possibly resulting in rolling burr when passing through the next roll stand 12 is smoothed again, since abutting edges of the rollers 2, 3, 16 used in each stand 12 at each pass of a roll stand 12 at a different position, namely offset by 45 ° , are located.
  • the changing orientation of the respective exchange paths 60 directly implies that in each case between the rolling stands 12 in the individual change positions 58 there is sufficient space for another rolling stand 12 in one of the change positions 39, since at this height the scaffolding station 57 of FIG the other side is equipped or converted.
  • a displacement of the changing carriage 54 about a rolling stand width a corresponding set of new rolling stands 12 can be provided.
  • a 3-roll stand with a drive 1 and three driven rollers 2, 3 has, as in FIG. 3 shown by way of example, for example, two bevel gear pairs, each consisting of two bevel gears 7, 8, which are provided on both sides of a coaxial to the drive driven roller 2 and in turn each drive a driven roller 3.
  • the rollers 2, 3 are hereby set at an angle of 120 ° to each other and arranged in the rolling mill 12.
  • Such a unit can in particular be used both in stretch-reducing mills and in sizing mills or in Ausziehwalzwerken.
  • such rolling stands 12 may be formed with or without a thru axle 4 and fixed or adjustable.
  • the thru axle 4 in a rolling mill 12 after FIG. 3 leads the driven roller 2 and the means of the bevel gears 7, 8 also driven rollers 3 to the input drive 1 supplied to drive power.
  • the roll stand 12 has a roll stand-side coupling part 11 of the input coupling, which is in rotary operative connection with the plug-in axis 4 and which in turn, as explained in the preceding embodiment, cooperates with a drive-side coupling part of the input coupling, wherein the rolling stand 12 through the inclined exchange pathstätig causes the coupling of both coupling parts.
  • the two coupling parts are here, as in the other embodiments explained, always aligned coaxially with one another in the region of the rolling position 61.
  • the rotational axis 15 of the input clutch coincides both with rotational axes of the two coupling parts and with a rotational axis of the driven roller 2.
  • the axis of rotation 15 of the input coupling runs parallel to the exchange path 60.
  • the driven rollers 3 may also be designed as drag rollers.
  • a 4-roll stand after FIG. 4 with two drives 1 and two driven rollers 2 these are arranged opposite one another and in each case connected to one of the two drives 1.
  • Each offset by 90 ° to the two driven rollers 2, a total of two guide rollers 16 are provided.
  • This arrangement is also preferably held in a roll stand 12 (not shown here) and can be used both in stretch-reducing mills and in sizing mills or in drawing-out mills.
  • such rolling stands 12 can be formed with or without thru axle 4 and fixed or adjustable.
  • the driven rollers 2 of the 4-roll stand do not have coaxial axes of rotation to the stub axles 4 and to the drives 1.
  • each provided an eccentric bushing Between the thru axle 4 and the driven roller 2 and on the side facing away from the plug axis of the driven roller 2 is each provided an eccentric bushing.
  • This eccentric bush 9 makes it possible to adjust the respective roller to the rolling stock to be rolled, with the drag rollers 16 also having corresponding eccentric bushings 9.
  • the contact pressure and the rolling dimension can be adjusted via a force exerted on the eccentric bushing 9 according to the requirements.
  • On the eccentric bush 9 acts in this embodiment, to generate the contact pressure in a FIG. 4 Unillustrated overload cylinder.
  • FIGS. 5 to 8 illustrated 4-roll stand with two drives 1 and four driven rollers 2, 3 has in deviation from the 3-roll stand after FIG. 3 to accommodate high scaffolding torques and rolling forces two roller units.
  • one drive 1 two mutually perpendicular rollers 2, 3 are driven via two mutually meshing bevel gears 7, 8, wherein the bevel gear angle is 45 °.
  • the respective inner bevel gears 7, 8 are mounted separately in a cassette 6 displaceably guided in the roll stand. Furthermore, the bevel gears 7, 8 sit with a splined profile displaceable at the end of short shaft pieces of a respective associated plug-in axis 4, 5, the other end sits with a réellevielkeilprofil on the roll shafts.
  • the shaft pieces are mounted by means of rolling bearings in eccentric bushes 9.
  • the cassettes 6 are moved and thus also fixed therein bevel gears 7, 8, which thereby move in the splined profile of the roll ends.
  • the eccentric bushings 9 are provided on both sides with a flattening on the side facing away from the rolling stock.
  • the center of the eccentric is shifted in the rolling direction 17 in the rolling stand.
  • the employment of the rollers 2, 3 and the rotation of the eccentric via threaded bolts in the roll housing which press on one side of the flattening.
  • Brackets with threaded bolts surround the flattening of the eccentric bushing 9.
  • spur gears On the threaded bolt sit spur gears which mesh with a ring gear.
  • the roller shafts units designed as stub axles 4, 5 are braced with a threaded rod 10 and a clamp nut 10.
  • the rolling stand 12 has in the embodiment of the FIGS. 5 to 8 two scaffolding plates 13, which enclose four angle pieces 14. In this respect, take the scaffolding plates 13 to the rolling forces.
  • the angle pieces 14 are processed before joining, preferably before welding, and are in this embodiment with their shoulders firmly in the surrounding them scaffold plate 13. It is understood that instead of such a scaffolding construction and a conventional rolling mill, for example as a cast body, for use can come.
  • the cassettes 6 in this case form separate framework parts, so that in the present case two separate framework parts are provided, which each have a drive 1, which is connected to two mutually perpendicularly aligned roller 2, 3.
  • the cassettes 6 or the separate framework parts in turn are in turn mounted on the framework body formed by the framework plates 13.
  • two opposing rollers are provided in a frame part.
  • the separate scaffolding parts allow high scaffolding moments and rolling forces to be absorbed.
  • overload protection conventional break bolts or other known devices may be used.
  • hydraulic overload cylinder 20 is provided, whereby a quickly put back in their operating state overload protection can be realized, which can be done for example simply by providing the appropriate pressure.
  • a corresponding signal can be tapped quickly and reliably and used for further reactions, such as to shut down the entire rolling mill.
  • the hydraulic overload cylinder 20 exist, as in detail in particular FIG. 9 In a roll stand 12, one of the rolls 2, 3 has two overload cylinders 20 which act on the eccentric bushes 9. A rolling stand 12 of a 4-roll stand therefore has eight separate overload cylinders 20.
  • the overload cylinder 20 are connected in this embodiment by means of pipes via pressure ports 28 with each other, which may possibly be waived.
  • a common triggering of the overload protection for all rollers 2, 3 at the same time can not be so easily ensured in the absence of communication by means of the pressure port 28 or other means for signal transmission become.
  • the overload cylinders 20 are adjusted via a common valve such that they open at a set release force and the guide piece 27 releases the eccentric bushes 9 with the inner parts. This is done in contrast to the conventional breaking pin, which does not necessarily break all the bolts at the same time, at the same time and in particular reversible.
  • Such an overload protection in particular a synchronization with respect to all the rolls of a roll stand, is particularly advantageous for Ausziehwalzwerke.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Handcart (AREA)
EP11008697A 2010-11-03 2011-10-31 Laminoir, cage de laminoir et procédé de changement de cages de laminoir dans un laminoir Withdrawn EP2450115A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010050135 2010-11-03
DE102011107786A DE102011107786A1 (de) 2010-11-03 2011-07-15 Walzwerk, Walzgerüst sowie Verfahren zum Wechsel von Walzgerüsten in einem Walzwerk

Publications (2)

Publication Number Publication Date
EP2450115A2 true EP2450115A2 (fr) 2012-05-09
EP2450115A3 EP2450115A3 (fr) 2012-06-27

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EP11008697A Withdrawn EP2450115A3 (fr) 2010-11-03 2011-10-31 Laminoir, cage de laminoir et procédé de changement de cages de laminoir dans un laminoir

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DE (1) DE102011107786A1 (fr)
EA (1) EA201101459A3 (fr)
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DE102013002903B4 (de) * 2013-02-21 2017-10-19 Sms Group Gmbh Walzgerät zur Aufnahme von Walzkräften
CA2925973C (fr) 2015-07-01 2022-05-03 Alexander Guingold Dispositif mecanique pour un moteur convertissant un mouvement lineaire en mouvement de rotation
DE102015216387A1 (de) * 2015-08-27 2017-03-02 Sms Group Gmbh Richtmaschine mit modular aufgebautem Wechselkassettensystem
DK3408029T3 (da) * 2016-01-27 2021-01-18 Buehler Ag Bæreanordning og fremgangsmåde til frontal udtagning af et valselegeme af en valsemølle samt valsemølle med et frontalt udtageligt valselegeme
DE102016123545B4 (de) * 2016-12-06 2019-02-07 Voith Patent Gmbh Verfahren zum Umbau eines Walzenaggregats zur Behandlung einer Faserstoffbahn
CN107661899B (zh) * 2017-10-31 2023-07-25 天津旭智机电设备制造有限公司 一种药芯焊丝轧机机头
CN107855363B (zh) * 2017-12-04 2024-02-27 北京京诚瑞信长材工程技术有限公司 一种辊模和顶管机
CN110795844A (zh) * 2019-10-25 2020-02-14 太原科技大学 板带轧机系统多参数耦合动特性的计算方法
CN111744962A (zh) * 2020-07-07 2020-10-09 四川易尚天交实业有限公司 一种三辊星型精密轧机丝杆推拉机构
CN111922090B (zh) * 2020-07-09 2022-07-15 首钢京唐钢铁联合有限责任公司 精轧机更换工作辊后的水平值自动给定方法及系统
CN111744965A (zh) * 2020-07-31 2020-10-09 四川易尚天交实业有限公司 一种用于三辊星型精密轧机辅助辊环更换的旋转工作台
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CN102527731A (zh) 2012-07-04
ZA201108014B (en) 2012-06-27
MX2011011640A (es) 2012-05-21
DE102011107786A1 (de) 2012-05-03
EA201101459A3 (ru) 2012-07-30
EA201101459A2 (ru) 2012-05-30
JP2012096290A (ja) 2012-05-24
US20120103048A1 (en) 2012-05-03
BRPI1104832A2 (pt) 2016-01-12
EP2450115A3 (fr) 2012-06-27

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