• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a strand guide roller unit (33, 33a) for guiding a metallic strand in a continuous casting machine (2), comprising a strand guide roller (26) which can be individually raised against the strand, a roller carrier (28, 28a), an adjusting device (30) and a crosshead (32, 32a), wherein the individually engageable strand guide roller (26) with the roller carrier (28, 28a) and the adjusting device (30) at one end to the roller carrier (28, 28a) and the other end to the crosshead (32, 32a) is connected and a strand guide segment (101) and a strand guide (8). A particularly advantageous strand guide roller unit (33, 33a) is achieved when the adjusting device (30) is connected to the crosshead (32, 32a) or to the roller carrier (28, 28a) in a translatory and rotationally movable manner by means of at least one bearing (43).
    公开号:AT516412A1
    申请号:T50774/2014
    申请日:2014-10-28
    公开日:2016-05-15
    发明作者:Christian Ing Gruber；Josef Ing Guttenbrunner；Martin Dipl Ing Dr Hirschmanner；Franz Josef Hoechtel；Michael Ing Starrermair；Helmut Dipl Ing Wahl；Günter Dipl Ing Ziegler
    申请人:Primetals Technologies Austria GmbH；
    IPC主号:
    专利说明:

    description
    Strand guide roller unit for a continuous casting machine
    The invention relates to a strand guide roller unit for guiding a metallic strand in a continuous casting machine, comprising a strand guide roller which can be raised individually against the strand, a roller carrier, an adjustment device and a crosshead, wherein the individually engageable strand guide roller with the roller carrier and the adjustment device at one end with the roller carrier and at the other end connected with the cross-head.
    In the continuous casting of metals, a metallic melt is fed to a cooled mold, solidified in it at least in the edge zone and usually fed continuously - already in the form of a strand - from the mold of the mold to the strand casting of the continuous casting machine and through the mold conveyed.
    Through the strand guide the strand is guided, supported and further cooled. For this purpose, the strand guide usually has a plurality of strand guide segments with strand guiding rollers. At least some of these strand guide rolls are usually abuttable against the strand in a plurality or individually by means of a sizer.
    WO 2011/095 383 A1 discloses a strand guide segment with cassette-like strand guide roller units. Each strand guide roller unit has an individually engageable strand guide roller, a crosshead, a roller carrier and an adjusting device, wherein the adjusting device is in each case rotationally movably connected to the crosshead and to the roller carrier by means of rotary joints.
    It is an object of the invention to propose an advantageously constructed strand guide roller unit.
    This object is achieved by a strand guide roller unit of the kind mentioned at the beginning, in which, according to the invention, the displacement device is connected in a translationally and rotationally moveable manner to the crosshead or to the roller carrier by means of at least one bearing.
    The invention is based on the consideration that a sufficiently movable mounting of the adjusting device on the crosshead and / or on the roller carrier, in particular for avoiding an undesired lateral force and / or a momentary effect on the adjusting device, is necessary. The invention proceeds from the recognition that the usual rotationally movable connection of the Vers¬telleinrichtung with the crosshead and with the roller carrier, in particular by means of both sides of the adjusting an¬geordnet hinges, may be disadvantageous.
    On the one hand, these both sides pivotal Verbindungbzw. Storage ver¬bunden with an increased design effort. In particular, the equipment of the crosshead and the roller carrier, each with at least one required for the drehge¬lenkige connection bearing element - beispiels¬weise a transverse bore for receiving a bolt, a Lagergerses or the like - may affect the mechanical properties of the strand guide roller unit. In spite of the bearing elements reaching a sufficient bending and / or shear strength of the crosshead and / or the roller carrier, it may be necessary to increase their height or to use a higher-strength material. This can lead to an excessive load of limited installation space and / or increased costs.
    On the other hand, the mutually pivotal connection ei¬ne flexible - to compensate for the rotational movement - hoses for supplying an active medium, such as a hydraulic fluid or the like, er¬fordern to the adjustment. Such flexible, flexible hoses can be easily damaged, in particular under the ambient conditions prevailing in continuous casting. As a result, leaking of the active medium from the tube may result, resulting in undesirable contact of the strand with the active medium and, ultimately, a fire hazard.
    By virtue of the fact that the adjusting device is connected to the crosshead or to the roller carrier by means of the arrangement which is both translationally and rotationally movable, the invention makes possible a sufficiently movable mounting of the displacement device. An undesirable transverse force and / or a moment action on the adjusting device is thereby avoided. It is sufficient if the Vers- telleinrichtung is connected to either the crosshead or with the Rol¬lenträger mounted in such a way. On a both sides rotatory movable connection of the adjusting means of hinges can therefore - overcoming the aforementioned disadvantages - be dispensed with. "Against the strand adjustable " For the purposes of the present invention, it may mean that the strand-guiding roller is able to impart a force to the strand in the direction of strand displacement, adjustment or delivery. For this purpose, the adjusting device can impose a force and / or a displacement on the roller carrier or indirectly on the strand guide roller. The force and / or the displacement can be effected along an adjustment direction. The adjustment direction may be a direction along a direction of action of the adjustment device, in particular a direction along a stroke direction of a hydraulic cylinder or the like. Preferably, the adjustment direction may be a direction transverse to a casting or a conveying direction of the strand through a strand guide segment.
    For the purposes of the invention, the adjusting device can then be connected in a translationally movable manner by means of the mounting, if the adjusting device has a structural component with respect to the component connected to it by means of a bearing
    Element can perform translational relative motion defined by direction and magnitude.
    For the purposes of the invention, the adjusting device can then be connected in a rotationally movable manner by means of the mounting, if the adjusting device can perform a rotational displacement movement defined by direction and magnitude with respect to the component connected to it by means of the bearing.
    Preferred developments of the invention will become apparent from the dependent claims.
    In an advantageous embodiment of the invention, the displacement device is translationally and rotationally fixedly connected to the crosshead not connected by the bearing or to the roller carrier not connected by the bearing. Put simply, the adjusting device is fixed in a translational and rotational manner at its end opposite the bearing, ie, either at the crosshead or at the roller carrier, for example by means of a screwed connection and / or a welded connection.
    By such a connection can be dispensed with leakage-susceptible flexible tubing between the crosshead and Vers¬telleinrichtung or between the roller carrier and Vers¬telleinrichtung for agent supply. In addition, structurally complex, space-consuming and the mechanical properties of the strand guide Rollenein¬heit impairing bearing elements avoided or in their number can be reduced. In this way, an advantageously designed strand guide roller unit is achieved. In particular, such a strand guide roller unit can be achieved with comparatively reduced height and with reduced mass.
    For the purposes of the invention, the adjusting device can then be connected to a component in a fixedly displaceable manner, if a relative translational movement of the adjusting device and of the component relative to one another - as would be possible, for example, by a guide, a slide rail or the like - is prevented by a constructive element. Of course, a translatory relative movement due to elastic deformation need not be prevented.
    For the purposes of the invention, the adjusting device can be rotationally fixedly connected to a component, if a rotational relative movement of the adjusting device and the component against each other - as would be possible, for example, by a rotary joint, a linkage or the like - is prevented by a constructive element. Of course, commutative relative motion due to elastic deflection, elastic shear deformation or the like need not be inhibited.
    In a further embodiment, the bearing has a translatory degree of freedom in the axial direction of the individually engageable strand guide roller. For the purposes of the present invention, a translational degree of freedom can be understood to mean a kinematic possibility of movement along a direction predetermined by a constructive element. Due to the translational degree of freedom of the bearing, relative movability of the adjusting device to the crosshead or the roller carrier can be achieved, depending on whether the adjusting device is connected to the crosshead or to the roller carrier by means of the mounting. In this way, it is possible to minimize the transmission of undesired transverse forces - which can lead to jamming of the roller carrier in the course of a strand guide segment and / or to an impairment of the adjusting device - to the adjusting device.
    Furthermore, it is advantageous if the bearing has a translationally movable sliding guide. Advantageously, the sliding guide is a linear sliding guide for guiding a translatory relative movement between the displacement device and the roller carrier or between the displacement device and the crosshead. Sliding guides have been tested many times, can be dimensioned inexpensively using simple design rules and require little maintenance. Mit¬hin can be achieved by this sliding an advantageous Konstruk¬tion the strand guide roller unit.
    Advantageously, the sliding guide has at least one sliding strip. It is advantageous if the sliding strip is arranged on the roller carrier or on the crosshead. Advantageously, the sliding guide has at least one sliding block, which is guided on the sliding strip, preferably between two sliding tracks.
    In an advantageous embodiment, the bearing has a degree of rotatory freedom about a rotation axis parallel to the longitudinal direction of the strand. The strand longitudinal direction may be the direction along which the strand passes by tangentially overrunning the strand guide roll in the continuous casting machine. whose strand guide is feasible. For the purposes of the present invention, a rotational degree of freedom means a kinematic possibility of movement about an axis of rotation predetermined by a structural element. The rotary degree of freedom of the bearing can provide relative rotational mobility of the adjusting device to the crosshead or to the roller carrier the adjusting device is connected by means of the bearing to the crosshead or to the roller carrier. In this way, a transmission of an undesired torque - which can lead to a displacement of the roller carrier in the frame and / or to an impairment of the adjusting device - on the displacement device can be avoided.
    In a further advantageous embodiment, the bearing has a rotatably movable bolt connection. Stud connections have been tested many times, can be dimensioned in terms of expense using simple design specifications, and can be easily detached and serviced with conventional tools. Thus, a favorable construction of the strand guide roller unit can be achieved by this bolt connection.
    Moreover, it is advantageous if the adjusting device has a screw flange for screwing to the crosshead or with the roller carrier. Schraubflanschverbindungens are tested many times and constructively dimensioned with little effort, so that an advantageous and aufwandsgüns¬ tige construction of the strand guide element can be achieved. A particularly simple disassembly of Verstelleinrich¬tung from the strand guide roller unit is made possible when the Schraubflanschverbindung has at least one releasable Ver¬ binding agent. The connecting means may be a screw, a nut, a threaded bolt or the like.
    In addition, it is advantageous if the adjusting device has a bolt eye for bolting to the roller carrier or to the crosshead. It is expedient if the bolt eye and the screw flange are arranged at opposite ends of the displacement device. A bolt eye may be understood to mean a transverse bore for receiving a bolt. In this way, a particularly advantageous, with simple means producible and detachable connection of the Vers¬telleinrichtung with the crosshead or the roller carrier and thus an advantageous construction of the strand guide roller can be achieved.
    It is advantageous if the adjusting device is connected to the roller carrier by means of the bearing. In this case, it is expedient if the adjusting device is connected in a translationally and rotationally fixed manner to the crosshead. As a result of the connection between the crosshead and the adjusting device fixed in this way, a flexible flexible hose connection between the crosshead and the adjusting device, for example for an active medium supply, can be avoided. In addition, constructive consuming, space-consuming and the mechanical properties of the crosshead impairing bearing elements can be avoided. In this way, the crosshead can be achieved with comparatively low overall height and comparatively low mass comparable or improved strength properties.
    It is advantageous if the adjusting device is a pressure medium cylinder. In particular, in order to be able to apply sufficiently large forces to the strand starting from the adjusting device via the roller carrier and the strand guiding roller, it is advantageous if the adjusting device is a hydraulic cylinder.
    In an advantageous development of each individually engagable strand guide roller two pressure medium cylinder, in particular two hydraulic cylinders, associated with and connected to the roller carrier. In particular, a non-synchronous An¬steuerung the two pressure cylinder with consequently uneven adjustment and / or Verstellwegen, unequal leverage effect of the adjustment on the Rol¬lenträger or the like, can or can cause an unwanted tipping moment on the roller carrier. Consequently, it can lead to a tilting of the roller carrier in the strand guide, more precisely in a strand guide segment or its frame. In particular, when two pressure medium cylinders per strand guide roller are used, the aforementioned translationally and rotationally movable connection between the adjusting device and the roller carrier is therefore particularly advantageous. It is advantageous if each Druckmittel¬zylinder each storage is assigned.
    In an advantageous embodiment, the strand guide segment has a pipe attached to the crosshead and to the adjusting device for supplying a pressure medium to the displacement device. Under a pipeline can be understood - in contrast to a hose - substantially rigid line for guiding an active medium. By using a pipeline instead of a usually less robust hose line, damage safety of the pressure medium supply line can be increased, thereby preventing leakage, further avoiding unwanted escape of the pressure medium onto the line and ultimately counteracting the quality of the strand. Furthermore, such a hosing work can be reduced in this way.
    In a further advantageous embodiment, the single strand guide roller which can be put on is at least one position monitoring device for monitoring a position of the strand guide roller, for example based on a volumetric flow measurement, and / or a displacement measuring device for measuring a setting position of the strand guide roller, in particular along its adjustment direction, assigned. In this way, by using the positioning position measurable in this way, it is possible to control and / or regulate the setting of the guide roller.
    In addition, it is advantageous if the displacement measuring device is structurally separated from the adjusting device between the crosshead and the roller carrier. "Structurally separated" may mean that the displacement measuring device is designed as a non-integral constituent part of the adjusting device, for example outside the pressure medium cylinder. Due to the so-called "external" Arrangement, improved accessibility, for example, for maintenance purposes, the path measuring device can be achieved. Disassembly of the adjusting device in order to reach the path measuring device can be avoided in this way.
    In a further embodiment, the displacement measuring device is fastened at one end to the crosshead and at the other end to the roller carrier. In this way it can be avoided by simple means that any bearing clearance of storage by the
    Detected path measuring device and thus the path measurement is impaired.
    In one development, the displacement measuring device has a magnetostrictive displacement transducer. Magnetostrictive transducers which are known per se are largely insensitive to environmental influences such as temperature, vibration and soiling and are therefore suitable for use under the operating conditions of a continuous casting machine in a special way.
    In a particularly robust development, the Wegmess¬ on a protective housing.
    Furthermore, it is advantageous if the displacement measuring device has a forming tube fastened to the roll carrier and a bellows arranged between the protective cover and the forming tube.
    In an advantageous embodiment, the protective housing, in particular a cavity formed by the protective housing, for receiving the displacement transducer, is acted upon by a protective medium. Advantageously, the protective medium is impinged gas, for example compressed air, which counteracts the introduction of dirt or dust particles into the interior of the protective housing. In this way, a particularly robust and low-maintenance displacement measuring device can be achieved.
    In addition, the invention is directed to a strand guide segment for a strand guide of a continuous casting machine.
    The strand guide segment has at least one strand guide roller unit according to one of claims 1 to 13.
    It is advantageous if the crosshead of the strand guide roller unit is detachably connected to a frame of the strand guide segment. Advantageously, the roller carrier of the strand guide roller unit is supported transversely to the adjustment direction, in particular by means of guide rails, on the frame of the strand guide segment. The guide strips can be designed as plain bearings, in particular as linear plain bearings. In this way, a transverse force imposed by the strand on the strand guiding roller can be transmitted via the roller carrier and the guide strips into the frame of the strand guiding segment, an undesired effect of the lateral force on the adjusting device connected to the roller carrier being reduced.
    It is expedient if, in the adjustment direction relative to the strand guide roller unit, in particular in the adjustment direction relative to the individually engageable strand guide roller, a further strand guide roller is supported so as to be axially rotatable on the frame of the strand guide segment. Furthermore, it is advantageous if several, for example, five to ten, strand guide roller units in the strand guide segment in the strand longitudinal direction are arranged in cassettes one behind the other. The cassettes of the strand guide roller assemblies within the strand guide segment provide particularly easy assembly, disassembly and serviceability of the strand guide roll assemblies and the strand guide segment, respectively.
    Furthermore, the invention is directed to a strand guide for a continuous casting machine. The strand guide has at least one strand guide segment according to claim 14. It is expedient if a plurality of strand guide segments are arranged one behind the other in the strand longitudinal direction in the strand guide of the continuous casting machine. Advantageously, the strand-guiding segments are individually assembled and disassembled. In this way, a particularly inexpensive and easy to maintain and adaptable guide is achieved.
    The previously given description of advantageous Ausgestaltun¬gen contains numerous features that are reproduced in some of the sub-claims partially summarized several. However, these features may conveniently be considered individually and summarized to meaningful other combinations. In particular, these features can each be combined individually and in any suitable combination with the method according to the invention and the arrangement according to the invention according to the independent claims.
    The above-described characteristics, features and advantages of this invention, as well as the manner in which these are achieved, will become clearer and more clearly understood in connection with the following description of the embodiments which will be described in detail in connection with the drawings. The exemplary embodiments serve to explain the invention and do not limit the invention to the combination of features given here, not even with regard to functional features. In addition, suitable features of each embodiment may also be considered explicitly isolated from one embodiment, incorporated into another embodiment to supplement it, and / or combined with any of the claims.
    1 shows a schematic representation of a continuous casting machine with a strand guide or strand guide segments, FIG. 2 shows a detail of detail of the strand guide FIG. 1, FIG. 3 shows a perspective view of the strand guiding segment from FIG. 2 with several strand guide roller units, FIG Figure 4 is a perspective view of one of the strand guide roller units of the strand guide segment of Figure 3, Figure 5 is a perspective view of another
    6 shows a perspective sectional view of a strand guide roller unit and FIG. 7 shows a perspective sectional view of the displacement measuring device of the strand guide roller unit from FIG. 3 and FIG. FIG. 1 shows a schematic representation of a continuous casting machine 2 for producing a metallic strand in slab form. The continuous casting machine 2 has a ladle turret 4, a mold 6 and a strand guide 8 with a plurality of strand guide segments 10 a to 101. The Stranggießma¬chine is located in a hall which is ab¬gestützt over a Fundament on a hall scaffolding with multiple steel beams 12. The continuous casting machine 2 is supported on a support structure 14.
    To produce a metallic strand, the mold 6 is supplied with liquid steel via the ladle turret 4. In the mold 6, the liquid steel is solidified at least in a marginal zone and fed continuously from the mold 6 of the strand guide 8 of the continuous casting machine 2, and already conveyed through it in a unitarily solid strand shape.
    Through the strand guide 8, the strand is guided, supported and further cooled. For this purpose, the strand guide 8, the strand guide segments 10 a to 101 on. 2 shows a fragmentary detail of the strand guide 8aus FIG 1. From the illustration, the Strandführungssegmen¬te 10j, 10k and 101 can be seen. The strand guide segments 10j and 10k are configured as so-called 4-axis segments. The strand guide segment 101 is implemented in a cassette construction with a single roll adjustment. For this purpose are several, more precisely seven, essentially identical
    Strand guide roller units 33 in a strand longitudinal direction L cassettes arranged in succession in the strand guide segment 101. It is of course also conceivable and advantageous, auszufüh¬ren all strand guide segments of the Strandführung8 in cassette construction with Einzelrollenanstellung. FIG. 3 shows a perspective view of the strand guide segment 101 from FIG. 2. The strand guide segment 101 has a frame 16 which is joined by an upper frame 18, a lower frame 20 and lateral support frames 22.
    The sub-frame 20 several strand guide rollers 24 are assigned, which are designed as non-displaceable - ie in the radial direction immovable - strand guide rollers 24. Each of the radially immovable strand guide rollers 24 is rotatably supported about its longitudinal axis by means of four respective bearings 42 on the subframe 20.
    In the present embodiment, the upper frame 18 is assigned guide guide rollers 26 which can be set individually in an adjustment direction V.
    Each of the individually engageable strand guide rollers 26 is assigned in each case a roller carrier 28, at least one adjustment device 30 and a crosshead 32. Each of the individually engagable strand guide rollers 26 is supported by means of four bearings 40 on the associated roller carrier 28 axially rotatable. Each roller carrier 28 is slidably mounted on its front sides in or on the lateral support frame 22 and displaceable in the adjustment direction V. Each crosshead 32 is detachably connected to the upper frame 18.
    An individually engageable strand guide roller 26 together with the cross member 32 assigned to it, the roller carrier 28 and the at least one adjusting device 30 form a strand guide roller unit 33.
    The strand guide segment 101 has seven such strand guide roller units 33, which are essentially identical in construction. By virtue of this cassette-type construction of the strand guiding segment 101, each with strand guide roller units 33 which can be assembled and disassembled individually, a high degree of serviceability is achieved.
    Furthermore, the adjusting devices 30 are designed as pressure medium cylinders 34, more precisely as hydraulic cylinders. Furthermore, one pipe 36 is attached to each crosshead 32 and each adjusting device 30 for supplying a pressure medium to each adjusting device 30, respectively.
    Each of the individually engageable strand guide rollers 26 is associated with at least one displacement measuring device 38 - in the present embodiment, there are two - for measuring a positioning position of the respective strand guide roller 26.
    The displacement measuring device 38 is structurally separated from the Vers¬telleinrichtung 30 - ie outside the Druckmittelzylinders34 - between a crosshead 32 and a roller carrier 28 arranged.
    By means of the strand guide rollers 26, which can be individually adjusted in the adjustment direction V to the strand, the strand can be metallurgically treated according to a specification and thus influenced in its properties. For example, by setting the strand guide rollers 26 in the adjustment direction V, a linear and / or non-linear progression of the thickness of the strand moving along the strand longitudinal direction L through the strand guide segment 101 can be effected over the length of the strand.
    In order to adjust one of the strand guide rollers 26, a pressure medium is supplied to the respective pressure medium cylinders 34 via the pipe 36 assigned to it and a stroke, ie retraction or extension, of the pressure medium cylinder 34 is effected. The stroke of the pressure medium cylinders 34 in the adjustment direction Vpresses a displacement on the pressure medium cylinder 34 the strand guide roller 26 associated roller carrier 28 and the strand guide roller 26auf. The roller carrier 28 is slidably guided in the lateral support frame 22 and supported in the axial direction A of the strand guide rollers 26, wherein the strand guide roller 26 is attached to the strand. A reaction force which acts against the adjustment direction V and impresses the strand guide roller 26 is finally conveyed via the roller carrier 28, the pressure cylinders 34 and the crosshead 32 into the frame 16 of the strand guide segment 101 and further into the support structure 14 of the continuous casting machine 2 (see FIG ).
    The description of the following exemplary embodiments is essentially limited to the differences from the exemplary embodiments from FIG. 1, FIG. 2 and FIG. 3, to which reference is made to features and functions that remain the same. Essentially identical components are in principle numbered with the same reference numerals, and features not mentioned are adopted in the following exemplary embodiments without being described again. However, like features, which may, however, have slight differences, for example in an amount, in a dimension, position and / or function or the like, are denoted by the same reference numeral and numerals. marked with another reference letter. When the reference numeral alone is mentioned without a reference letter, the corresponding components of all embodiments are referred to. 4 shows a perspective view of a strand guide roller unit 33 from FIG. an individually engagable strand guide roller 26 of the strand guide segment 101 from FIG. 3 together with the roller carrier 28 assigned to this strand guide roller 26, the adjusting device 30 -herein executed as two pressure medium cylinders 34, the crosshead 32 and the displacement measuring devices 38.
    The adjusting device is in the present Ausführungsbei¬ game by means of two bearings 43 (details see FIG 6) translationally and rotationally movably connected to the Rollenenträger28. It is also possible that the Verstell¬einrichtung 30 is connected by means of at least one storage 43translatorisch and rotationally movable with the crosshead 32. That In general, the adjustment device 30 can be connected to the crosshead 32 or to the roller carrier 28 in a translatory and rotationally movable manner by means of at least one mounting 43.
    The adjusting device 30 is translatory and rotationally fixed - in simple terms, "rigid". or "rotationally fixed" -Connected to the not connected by means of the bearing 43 Querhaupt32. By dispensing with an articulation of the Vers¬telleinrichtung 30 and the pressure cylinder 34 on Quer¬haupt 32, for example by means of a rotary joint, a Lager or the like, a particularly favorable Kraft¬fluss and a comparatively low height of the Querhaupts32 can be achieved , Furthermore, it is achieved that the crosshead 32 has a comparatively lower deflection under a load caused by the pressure medium cylinders 34, which can have a positive effect on the achievable properties of the strand.
    It is alternatively possible - if the adjusting device 30 would be connected by means of the bearings 43 with the crosshead 32 - that the adjusting device 30 is fixed in translation and rotatory fixed to the not connected by means of the storage 43 roller carrier 28.
    The crosshead 32 is connectable or connected to the upper frame 18 (see FIG. 3). The individually engageable strand guiding roller 26 is connected to the roller carrier 28 and the adjusting devices 30 at one end to the crosshead 32 and at the other end to the roller carrier 28.
    The crosshead has two screw flanges 44 for screwing with the adjusting device 30 or in each case one of the pressure medium cylinder 34. Each pressure cylinder 34 has ei¬nen Schraubflansch 46 for screwing to the crosshead 32auf. The screw flanges 44 of the crosshead 30 and the screw flanges 46 of the pressure medium cylinders 34 are pairwise joined by connecting means 50 to a respective Schraub¬flanschverbindung 48.
    The Wegmesseinrichtungen 38 are each attached at one end to the crosshead 32 and the other end on the roller carrier 28. In this way, a particularly precise distance measurement can be achieved, as any bearing or connection play is not detected at the connection points between the pressure medium cylinders 34 and the crosshead 32 and the roller carrier 28, as would be the case, for example, in an integrated into the pressure cylinder actuation device , 5 shows a perspective view of a further, alternative strand guide roller unit 33a. In this strand guide roller unit 33a, the individually engageable rod guide roller 26 is associated with exactly one pressure cylinder 34 arranged centrally in the axial direction A of the strand guide roller 26 and in the adjustment direction V between the crosshead 32a and the roller carrier 28a. 6 shows a perspective sectional view of the strand guide roller unit 33 from FIG. 4. The pressure medium cylinder 34 has a cylinder housing 52 and a cylinder piston 54 which is slidingly movable in the sealing direction V.
    At one end, the pressure medium cylinder 34 - as described above - is fixedly connected in a translatory and rotational manner by means of the screw flange 46 and the connecting means 50 to the screw flange 44 of the crosshead 32.
    At the other end, the adjusting device 30 or the Druckmit-telzylinder 34 by means of the bearing 43 translationally androtatorisch movably connected to the roller carrier 28.
    The bearing 43 has a translatory degree of freedom FT in the axial direction A of the strand guide roller 26, so that the adjusting device 30 is displaceably mounted in the axial direction by means of a translationally movable sliding guide 56 connected to the roller carrier 28.
    In addition, the bearing 43 has a rotational degree of freedom FR about a parallel to the strand longitudinal direction L DrehachseD so that the adjusting device 30 and the Druckmit¬telzylinder 34 is rotatably connected by means of a rotationally movable bolt connection 58 about the rotational axis D rotatably connected to the roller carrier 28. For the bolted connection 58, the cylinder piston 54 has a piston extension 60 with a bolt eye 62, wherein the bolt eye 62 is designed as a circular cylindrical bore for receiving a circular cylindrical bolt surface 64 of a bolt 66. The sliding guide 56 is formed from pairs in the direction of adjustment V opposite slide strips 68 andzwei each formed as a sliding block 70 front ends of the bolt 66. 7 shows a perspective sectional illustration of the displacement measuring device 38 of the strand guide roller unit 33 from FIG. 3 and FIG. 4.
    The displacement measuring device 38 has a magnetostrictive transducer 72, which is sufficiently insensitive to environmental influences such as temperature, vibrations and soiling and thus suitable for use under the operating conditions of the continuous casting machine 2 in a special way. The magnetostrictive transducer 72 has a waveguide 74, a transducer 76, and a magnet 78 formed as a ring magnet. The relative
    Order of the waveguide 74 and the magnet 78 is prepared vor¬ to perform a Relatiwerschiebung between the crosshead 32 and the roller carrier 28 - as it can occur in particular by a displacement of the slide 56 transversely to the adjustment direction V - damage-free.
    Furthermore, the displacement measuring device 38 has a protective housing 80 with a forming tube 82 fastened to the roller carrier 28, a protective cover 84 secured to the crosshead 32 and a folding bellows 86 arranged between the forming tube 82 and the protective cover 84.
    A cavity 90 formed by the protective housing 80 for receiving the transducer 72 and the waveguide 74, respectively, is exposed to a protective medium 92. The protective medium 92 is a pressurized gas - compressed air in the present embodiment - which counteracts the introduction of dirt or dust particles into the interior of the protective housing 80.
    The displacement measuring device 38 is structurally separated from the Vers¬telleinrichtung 30 (see FIGS 3-5) between the crosshead 32 and the roller carrier 28 is arranged. "Structurally separated" indicates that the displacement measuring device 38 is formed as a non-integral constituent part of the adjusting device 30, that is, outside of and separate from the pressure medium cylinder 34. By virtue of such "external" Arrangement of Wegmesseinrich¬tung 38 improved accessibility for maintenance purposes can be achieved. Disassembly of the adjusting device 30 (see FIG. 3 and FIG. 4) in order to be able to reach the displacement measuring device 38 is thus avoided.
    In this way it can be avoided by simple means that a clearance of the sliding guide 56 and / or the bolt connection 58 (see FIG. 6) - in the effective direction of the sealing device 30 - is detected between the adjusting device 30 with the roller carrier 28 by the path measuring device 38. As a result, a precise displacement measurement of a pitch position s between the crosshead 32 and the roller carrier can be achieved and an impairment of the measurement by the bearing clearance of the slide guide 56 and / or bolt connection 58 can be minimized.
    List of Reference Numerals 2 continuous casting machine 4 ladle turret 6 mold 8 strand guide 10a - 101 strand guide segment 12 steel girder 14 support structure 16 frame 18 top frame 20 subframe 22 lateral support frame 24 radially fixed strand guide roller 26 individually engageable strand guide roller 28, 28a roller carrier 30 adjustment device 32, 32a crosshead 33, 33a strand guide roller unit 34 pressure medium cylinder 36 Piping 38 Displacement measuring device 40 Bearing 42 Bearing 43 Bearing 44 Screw flange 46 Screw flange 48 Screw flange connection 50 Connecting means 52 Cylinder housing 54 Cylinder piston 56 Sliding guide 58 Bolt connection 60 Piston extension 62 Bolt eye 64 Bolt surface 66 Bolt 68 Sliding strip 70 Sliding stone 72 Magnetostrictive transducer 72 Connecting means 74 Waveguide 76 Transducer 78 Magnet 80 Protective housing 82 Mold tube 84 Protective cover 86 Bellows 88 Connecting means 90 Cavity 92 Protective medium A Axial direction D Rotary axis FT tr Inslatory degree of freedom FR Rotational degree of freedom L Line longitudinal direction s Adjustment position V Adjustment direction
    权利要求:
    Claims (15)
    [1]
    1. strand guide roller unit (33, 33a) for guiding a Metall¬ strand in a continuous casting machine (2), aufwei¬send an individually against the strand engageable strand guide roller (26), a roller carrier (28, 28a), an Verstell¬ Device (30) and a crosshead (32, 32a), wherein the ein¬zeln engagable strand guide roller (26) with the Rollenträ¬ger (28, 28a) is connected and the adjusting device (30) at one end to the roller carrier (28, 28a) and at the other end connected to the crosshead (32, 32a), characterized in that the adjusting device (30) is translationally and rotationally movably connected to the crosshead (32, 32a) or to the roller carrier (28, 28a) by means of at least one support (43).
    [2]
    Second strand guide roller unit (33, 33a) claim 1, characterized in that the adjusting device (30) translationally and rotatably fixed to the not by means of the storage (43) connected crosshead (32, 32a) or with the not by means of the bearing (43) connected to the roller carrier (28, 28a) is connected.
    [3]
    3. strand guide roller unit (33, 33a) according to one of vor¬herigen claims, characterized in that the bearing (43) has a translational degree of freedom (FT) in the axial direction (A) of the strand guide roller (26).
    [4]
    4. strand guide roller unit (33, 33a) according to one of the vor¬herigen claims, characterized in that the bearing (43) has a translationally movable sliding guide (56).
    [5]
    5. strand guide roller unit (33, 33a) according to one of the vor¬herigen claims, characterized in that the bearing (43) einrotatorischen degree of freedom (FR) to a direction to the strand longitudinal direction (L) parallel axis of rotation (D).
    [6]
    6. strand guide roller unit (33, 33a) according to one of the vor¬herigen claims, characterized in that the bearing (43) eineotatorisch movable bolt connection (58).
    [7]
    7. strand guide roller unit (33, 33a) according to one of the vor¬herigen claims, characterized in that the adjusting device (30) at least one screw (46) for screwing and a bolt eye (62) for bolting either with the crosshead ( 32, 32a) or with the roller carrier (28, 28a).
    [8]
    8. strand guide roller unit (33, 33a) according to one of vor¬herigen claims, characterized in that the adjusting device (30) by means of the bearing (43) with the roller carrier (28, 28a) is ver¬bunden.
    [9]
    9. strand guide roller unit (33, 33a) according to one of the vor¬herigen claims, characterized in that the adjusting device (30) is a pressure medium cylinder (34).
    [10]
    10. strand guide roller unit (33, 33a) according to one of the vor¬herigen claims, characterized in that the individually engagable strand guide roller (26) at least one Positionsüberwachungsein¬richtung for monitoring a position of the strand guide roller and / or a Wegmeßeinrichtung (38 ) for measuring a Anstellposition (s) of the strand guide roller (26) is assigned.
    [11]
    11. strand guide roller unit (33, 33a) according to claim 10, characterized in that the displacement measuring device (38) bau¬lich separate from the adjusting device (30) and in particular at one end on the crosshead (32, 32a) and at the other end on Rol'lenträger (28, 28a) is attached.
    [12]
    12. strand guide roller unit (33, 33a) according to any one of claim 10 or 11, characterized in that the path measuring device (38) ei¬nem magnetostrictive transducer (72).
    [13]
    13. Strand guide roller unit (33, 33a) according to any one of claims 10 to 12, characterized in that the path measuring device (38) has a protective housing (80), which in particular with a protective medium (92) is acted upon.
    [14]
    14. strand guide segment (101) for a strand guide (8) of a continuous casting machine (2), characterized by at least one strand guiding Rollenein¬heit (33, 33a) according to at least one of the preceding Ansprü¬che.
    [15]
    15. strand guide (8) for a continuous casting machine (2), characterized by at least one strand guide segment (101) according to claim 14.
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    同族专利:
    公开号 | 公开日
    WO2016066337A1|2016-05-06|
    KR20170073633A|2017-06-28|
    EP3212351A1|2017-09-06|
    KR102348004B1|2022-01-05|
    RU2017118146A|2018-11-29|
    CN107107176B|2019-07-16|
    CN107107176A|2017-08-29|
    RU2675412C2|2018-12-19|
    EP3212351B1|2018-11-07|
    AT516412B1|2017-07-15|
    RU2017118146A3|2018-11-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2001094051A1|2000-06-02|2001-12-13|Voest-Alpine Industrieanlagenbau Gmbh & Co|Strand guide element, and strand guide segment with a strand guide element integrated therein|
    WO2004018129A1|2002-08-08|2004-03-04|Sms Demag Aktiengesellschaft|Method and device for dynamically resting roller segments that support and/or guide both sides of a cast bar made of metal, particularly steel|
    WO2009144107A1|2008-05-26|2009-12-03|Siemens Vai Metals Technologies Gmbh & Co|Multi-strand continuous casting system|
    WO2011095383A1|2010-02-05|2011-08-11|Siemens Vai Metals Technologies Gmbh|Rod guide segment in cassette design having single roll engagement|DE102017117634A1|2017-08-03|2019-02-07|Salzgitter Flachstahl Gmbh|Optimized continuous casting plant and process for the optimized alignment of components of a continuous casting plant|
    CN110666121A|2018-07-02|2020-01-10|首要金属科技奥地利有限责任公司|Strand guide segment with individually movable strand guide rollers|AT337386B|1975-09-03|1977-06-27|Voest Ag|ROLLER FRAME FOR CONTINUOUS CASTING PLANTS|
    DE10040271A1|2000-08-17|2002-02-28|Sms Demag Ag|Device for the continuous casting of metals, in particular steel|
    DE102004048618A1|2004-10-06|2006-04-13|Sms Demag Ag|Method and roller segment for determining the core solidification and / or the sump tip in the continuous casting of metals, in particular of steel materials|
    AT506549B1|2008-03-28|2011-06-15|Siemens Vai Metals Tech Gmbh|TRAIN TOUR SEGMENT|
    CN201470849U|2009-07-29|2010-05-19|中冶连铸技术工程股份有限公司|Casting blank guide device of continuous caster|
    AT510178A2|2010-07-27|2012-02-15|Siemens Vai Metals Tech Gmbh|DEVICE FOR LIMITING THE SLICING OF AN ADJUSTABLE WHEEL SUPPORT|KR101949701B1|2017-08-09|2019-02-19|주식회사 포스코|Roller assembly, casting apparatus and roller separating method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50774/2014A|AT516412B1|2014-10-28|2014-10-28|Strand guide roller unit for a continuous casting machine|ATA50774/2014A| AT516412B1|2014-10-28|2014-10-28|Strand guide roller unit for a continuous casting machine|
    EP15777636.0A| EP3212351B1|2014-10-28|2015-09-23|Strand-guiding rolling unit for a continuous casting machine|
    KR1020177013329A| KR102348004B1|2014-10-28|2015-09-23|Strand-guiding rolling unit for a continous casting machine|
    RU2017118146A| RU2675412C2|2014-10-28|2015-09-23|Roller unit of roller guide for continuous casting installation|
    PCT/EP2015/071847| WO2016066337A1|2014-10-28|2015-09-23|Strand-guiding rolling unit for a continuous casting machine|
    CN201580059307.1A| CN107107176B|2014-10-28|2015-09-23|Strand guide roller unit for conticaster|
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