EP2334454B1 - Système et procédé de détection de l état de fonctionnement d'un guidage de barre - Google Patents

Système et procédé de détection de l état de fonctionnement d'un guidage de barre Download PDF

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Publication number
EP2334454B1
EP2334454B1 EP09778654.5A EP09778654A EP2334454B1 EP 2334454 B1 EP2334454 B1 EP 2334454B1 EP 09778654 A EP09778654 A EP 09778654A EP 2334454 B1 EP2334454 B1 EP 2334454B1
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EP
European Patent Office
Prior art keywords
data
segment
roller
rollers
bearings
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Active
Application number
EP09778654.5A
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German (de)
English (en)
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EP2334454A1 (fr
Inventor
Andreas Naujock
Axel Weyer
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SMS Group GmbH
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SMS Group GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/208—Controlling or regulating processes or operations for removing cast stock for aligning the guide rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F

Definitions

  • the invention relates to an arrangement and a method for detecting an operating state of a strand guide of a continuous casting plant, taking into account a bearing force monitoring according to the preamble of claim 1 and according to the preamble of claim 4.
  • the strand guide of a continuous casting plant with a plurality of segments or with a plurality of roles with respect to the respective bearing forces and their respective distribution is very complex, which means that a measurement of the bearing forces corresponding to the requirements is not carried out and Thus, an adjustment or adjustment of the bearing forces corresponding to the requirements can not be performed.
  • an arrangement for detecting an operating condition of a strand guide of strand guide segments, in particular for a slab or thin slab plant, with at least one segment with rollers and / or partial rolls which are supported by bearings, wherein for monitoring of bearing forces and / or the temporal change of bearing forces on at least individual bearings transducers are arranged, wherein an evaluation unit is provided for detecting an operating condition, wherein the determined by the transducers data are forwarded to the evaluation unit for evaluation and / or signaling the operating state of the system, at least one segment and / or at least one roller and / or at least one partial roller, the evaluated data being used to monitor the roller break and / or to monitor the roller slip.
  • the evaluation unit which is designed as a data bus or by means of direct cabling. Furthermore, it is expedient if the measured and / or evaluated data are displayed by means of at least one display unit and / or used for control or regulation purposes.
  • a method for detecting and monitoring an operating state of a strand guide from strand guide segments, in particular a slab or thin slab plant, with at least one segment with rollers and / or part rolls, by means of Bearings are stored, being arranged to monitor bearing forces and / or the time change of bearing forces on at least individual bearings transducers, the data determined by the MeßwertaufNeillem be forwarded to an evaluation, for evaluation and / or signaling of the operating state of the system, at least a segment and / or at least one roller, and / or at least one Tellrolle, wherein the evaluated data are used to monitor the roll break and / or to monitor the role slip.
  • the measured and / or evaluated data are displayed by means of at least one display unit and / or used for control or regulation purposes.
  • the measured and / or evaluated data are statistically evaluable for generating a storage statistics, a symmetry statistics for the detection of uneven loads, a wear statistics for the detection of wear and / or monitoring statistics to determine a preventive maintenance, for machine maintenance, machine optimization and / or an adjustment of a load distribution.
  • the FIG. 1 shows a hierarchical structure 1 of a machine, in particular a continuous casting plant or in particular a slab or thin slab plant.
  • the system may consist of one or a plurality of machines 2, wherein the respective machine 2 is subdivided into a plurality of segments 3, which in each case in turn subdivided into subsegments 4.
  • a sub-segment 4 may comprise a segment side of a loose or fixed side of the segment.
  • the segments or the sub-segments 4 in turn comprise rollers 5, which may, for example, also be subdivided into a plurality of sub-rollers 6, these being supported by means of the bearings 7.
  • transducers 8 are preferably mounted or inserted directly on the bearings 7, which may preferably be integrated in the bearing blocks of the bearings 7 and detect the forces transmitted to the bearings.
  • the forces acting on the sub-roller 6 of the divided roller 5, on the roller 5, if necessary also with several sub-rollers 6, on the sub-segments 6, for example at least one segment side, such as a loose or fixed side, on the segments, for example, on a loose and / or fixed side and on the machine with the segments of the system, for example, a slab or thin slab plants are closed.
  • the data thus represent the respective bearing forces at the time of measurement.
  • the bearing force is also measured time-resolved, so that from an evaluation, the time course of the bearing forces and their time derivative can be determined.
  • the measuring methods and systems which can be used to detect a bearing force via a bearing gap that is changed when the force is applied can preferably be measuring methods or systems that sense the distance.
  • pressure measurement methods and systems which work, for example, via strain gauges or according to the load cell principle, can be used for force measurement.
  • the strand guide of a slab or continuous slab caster consists of a number of segments 3, the number of which is determined by the respective product requirements.
  • the number may preferably consist of a plurality of, for example, up to 20 segments with respective corresponding roller conveyor.
  • a segment of a slab plant for example, between 20 to 80 bearings are available, 2 to 10 rollers or partial rollers, ie rollers with a corresponding pitch and possibly even per segment frame on the top and / or bottom.
  • a detection and signaling of the operating state or a display representing it for detailing the information content for the operator can be performed.
  • FIG. 2 shows for clarity a segment 10, in which a slab 11 between two rollers 12,13 is arranged with two partial rollers 14,15,16,17.
  • the rollers 12,13 and the related sub-roles 14,15,16,17 are each associated with a segment top 18 as the lot side or a segment bottom 19 as a fixed side.
  • the rollers 12, 13 or the partial rollers 14, 15, 16, 17 are each supported by means of external bearings 20 and / or by means of center bearings 21. At least some or all of these bearings 20,21 serve to receive the measuring elements or measuring systems for carrying out the bearing force measurement and can be provided accordingly.
  • the distance measurements are evaluated centrally and / or decentrally.
  • the respective measuring elements or measuring systems are placed directly on the segments or their bearings and connected by means of data and / or energy connection, such as cables, so that the connection to peripheral units and evaluations by one or the number of systems to be used corresponding connections, such as cables , bundled can be made. Due to the possible extensions of the measuring systems, the number of evaluation points can be easily adapted in order to make the results more accurate or more representative.
  • the cable connection can also be replaced by a wireless connection.
  • the metrological evaluation of the recorded data takes place via measuring computers or measurement evaluation systems, which can be set up and connected centrally or decentrally.
  • the FIG. 3 schematically shows an arrangement of a plurality of force measuring elements 31 as measuring elements in a segment 30.
  • the elements 31 are connected by means of electrical connections 32,33 both to the data connection 33 and to the power or power connection 32 to a connection unit 34, the FIG. 3 is called connection box.
  • the data connection preferably takes place via a data bus connection 33, the elements 31 each having a subunit for transmitting and / or receiving data via the data bus 33.
  • the energy or power connection and the data connection is further transmitted via a further connection 36 to or from a converter 35, which ensures the power / voltage supply and the data transmission by means of a data bus.
  • FIG. 4 shows a connection unit 34 once again schematically with cable ducts 37 through the wall 38 of the housing 39 of the unit 34. It can be seen a cable connection 36 to the converter, which is designed with the electrical supply 40 and the data bus 41. In addition, cable connections 42 can be seen, which the connections 32,33 of FIG. 3 realize and ensure both electrical supply and data connection via data bus.
  • an uncomplicated and rapid recording of the measured values of the measuring elements of the bearing force measurements and their evaluation, for example, their statistical evaluation can be performed.
  • An assignment of the measurement results to the monitored or measured segment or to the strand can also take place and these corresponding data can also be forwarded to a central location, such as to a control center, such as a switching house of a continuous casting plant, so that there For example, via a measuring PC or other evaluation systems, a data evaluation can be done.
  • a simple and straightforward expansion option at least individual sub-rollers or rollers or a single segment can be done without significant additional mechanical / electrical expenses must be performed. It is advantageous if a realization of a coupling can be done by means of a plug connection.
  • the connector or its connector parts can be chosen such that a corresponding desired degree of protection of the connector can be realized.
  • connection of the measuring elements or measuring systems with an overall system also facilitates a simple and uncomplicated supplementation of a segment, for example, not yet fully equipped with further measuring elements, such as transducers, without the external cabling structure having to be adapted. It is sufficient if the additionally installed measuring element is connected via a connection unit, such as a connection box, to the overall system of the device.
  • a connection unit such as a connection box
  • the arrangement of the measuring elements on the respective camps provided for this purpose allows the decentralized detection of traversing speeds and / or path changes / time unit, thereby also force changes / time unit can be measured or determined and can be made available for example via a data protocol.
  • an automatic zero point calibration (TARA) of a single measuring point in the segment, a segment range (group), an entire segment or the complete system can be carried out, if appropriate on the basis of a combination of different events, such as a plant start with previous cold run, can be performed.
  • TARA automatic zero point calibration
  • the decentralized recording of measured values within predetermined limits for the measured values is possible, whereby, based on the measurements, reaching of the limit values is detected by the measured values and provided, for example, via the protocol can be.
  • a flexible coupling of the bus connection can be carried out via a coded plug connection.
  • the coded connector can be configured such that can be closed due to the connector and its coding on the placement of the segment with rollers and / or with measuring elements on the rollers and / or sub-roles.
  • the electrical coupling of the measuring elements to the bearings via an external cable connection with a flexible and / or detachable connection, possibly also via a plug connection. Also, the connection of the measuring elements or measuring systems placed on the segments by means of data / energy connection, such as cable, so that the connection to peripheral units and evaluations can be made bundled by one or the number of systems to be used corresponding cable connections.
  • variable number of bearing force measurements in a segment without changing the outer evaluation so that the current measurement positions can be variably adjusted within the segment.
  • a strand guide made of strand guide segments which are equipped with rollers and / or sub-rollers or roller segments for guiding a casting strand
  • a predeterminable number of bearings or all bearings are equipped with elements for bearing force measurement.
  • the results of the measured value detection of the bearing force are advantageously transmitted for evaluation and further processing to a central evaluation unit, such as a measuring PC or to a server.
  • the FIG. 5 shows this schematically. It is a set of rollers 50 each with two sub-rollers 51,52,53,54 to recognize, between the paired partial rollers arranged a slab 55 is added. At the bearings 56 of the sub-rollers measuring sensor 57 are provided as measuring elements, which determine the bearing force at the bearings 56. These data of the measuring elements are forwarded by data transmission, such as via data bus 58, to a measured value evaluation 59, for example at a control station, where a measuring PC 60 or a server 61 receives the data and by means of which the data can be evaluated.
  • the data transmission of the transducers 57 on / at the segments takes place via a data bus 58 or by means of structured cabling to the evaluation systems.
  • the data in the computer systems 60, 61 are analyzed, evaluated, calculated and / or graphically processed.
  • the evaluation of the signals or data is advantageously carried out via an electronic evaluation system, such as computer unit, measuring PC and / or server, this evaluation system for data acquisition and data processing is used.
  • an electronic evaluation system such as computer unit, measuring PC and / or server
  • the signal processing on the segment preferably takes place with corresponding data bus coupling to the evaluation systems or, alternatively, with a fixed or direct cabling.
  • the evaluated data can then be forwarded to the plant engineering and brought to the display or representation, or continue to be used for control and automation purposes.
  • bearing monitoring or operating state monitoring can be carried out in such a way that the evaluation of the axle-related bearings can be concluded by a completion evaluation of specific force profiles on certain anomalies or changes of a single role.
  • roller slip monitoring can be performed.
  • a statistical evaluation of the measurement results can also be carried out. Through the statistical evaluation of the bearing force measurements, the results described below can be determined, calculated, evaluated and displayed or displayed.
  • the determined wear statistics can be used for a preventive maintenance interval determination so as to predict future events.
  • the data can thus be used to determine upcoming maintenance and future maintenance intervals.
  • monitoring statistics for establishing preventive maintenance can be performed.
  • the load, load distribution and thus machine utilization can be determined be optimized by the arrangement and the design of the rollers and segments is chosen such that the load and the load distribution remains within a predetermined range.
  • a representation of the machine operating state can be carried out, for example, in a process diagram, in particular for the purpose of diagnostic aid and for the rapid determination of irregular states or states deviating from the standard operating state.
  • a use of a traffic light statistics for the condition detection per bearing can be used, see FIG. 6 ,
  • Rollers or sub-pairs of rollers are respectively arranged on the fixed side 71 and on the lot side 70, which are mounted in bearings.
  • a display or traffic light display 72 which represents the state of the bearing or its load.
  • a green square is used, which signals that the bearing load is in a favorable acceptable range, so ok.
  • a yellow circle is used, which is arranged above the green square. The yellow circle indicates that there is a heavy load or it should signal an announcement of a possible defect. This therefore means an "ATTENTION" signal. Above the yellow circle, a red triangle is still located, which signals a danger in which an overload or a defect is displayed.
  • FIG. 7 is a partial segment 80 shown with segment rollers 81 on the fixed side, which carry a slab 82.
  • a display means 83 is provided, which signals the load in the traffic light structure described above.
  • a traffic light-like display 84 is still provided for displaying the role of burden to be able to display the role of load on both the lot side and on the fixed side.
  • traffic light statistics take place, as described above, to be able to perform this for the state detection or status signaling per sub-segment.
  • the use of traffic light statistics may be performed to use them as described above for state detection per segment.
  • traffic light statistics or representation by means of traffic light symbols can be used to perform a state recognition per strand and / or for the machine, see FIG. 8 .
  • FIG. 8 shows a machine 90 having individual segments 91.
  • the segments 91 carry a slab 92.
  • a display 93 for signaling the operating state of the respective segment 91 is provided for each segment 91.
  • a direction detection of a change in the operating state is performed and signaled. It can then be detected quickly from which direction the detected deviation comes from the ideal state or in which direction the detected deviation develops. In this case, it can be distinguished whether the deviation develops from high to low, that is, decreases or changes in the opposite direction, ie increases. This can represent estimated additional information for the plant assessment.
  • FIG. 9 such a representation is shown schematically.
  • FIG. 9a is a static display shown, which signals an unopposed operating state (ok).
  • FIG. 9b a dynamic display is shown, which signals an unobjected operating state, but will change to the "attention" state or show a tendency in this direction.
  • FIG. 9c is a static display shown, which signals a medium operating state "attention”.
  • FIG. 9d A dynamic display is shown, which signals a medium operating state "Attention”, but will change to the direction of "danger” state or show a tendency in this direction.
  • FIG. 9e a static display is shown, which signals a hazardous operating state "Danger”.
  • FIG. 9f is a dynamic display shown, which signals a "Danger” operating state, but in the direction of "Attention” will change or show a tendency in this direction.
  • the arrangement according to the invention thus provides an automation concept for the diagnosis of the machine state in which sub-machine states are monitored by at least one warehouse and / or at least one roller and / or at least one sub-segment and / or at least one segment or by the entire system or machine becomes.
  • an evaluation system such as a measuring PC and / or server, a statistical evaluation of the signals can be made.
  • the segments, the sub-segments and / or the rollers can be performed with transducers.
  • An extension of the respective bearing measurements on the segment with low assembly and implementation costs is possible.
  • a temporal change of the bearing force can be detected or determined.
  • a detection of a lateral force, a total force and / or of ferrostatic loads can be performed.
  • the determined data can advantageously be stored in a memory and can be used to determine diagnoses on the historical data stored.
  • the advantage here is the compression of current data for storage and long-term archiving.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Claims (7)

  1. Agencement pour détecter un état de fonctionnement d'un guidage de barre, en particulier d'une installation de production de brames ou de brames minces, comprenant au moins un segment de guidage de barre équipé de rouleaux et/ou de rouleaux partiels qui sont montés au moyen de paliers, dans lequel des enregistreurs de valeurs de mesure sont disposés contre au moins un certain nombre de paliers pour la surveillance des forces aux paliers et/ou de la modification dans le temps des forces aux paliers, caractérisé en ce que l'on prévoit une unité d'évaluation pour la détection d'un état de fonctionnement, les données déterminées par les enregistreurs de valeurs de mesure étant transmises à l'unité d'évaluation pour l'évaluation et/ou la signalisation de l'état de fonctionnement de l'installation, d'au moins un segment et/ou d'au moins un rouleau et/ou d'au moins un rouleau partiel, les données évaluées étant prises comme référence pour la surveillance de la cassure des rouleaux et/ou pour la surveillance du glissement des rouleaux.
  2. Agencement selon la revendication 1, caractérisé en ce qu'on prévoit entre les enregistreurs de valeurs de mesure et l'unité d'évaluation, un circuit de transmission de données ou de signaux qui est réalisé sous la forme d'un bus de données, d'un circuit de radiocommunication ou au moyen d'un câblage direct.
  3. Agencement selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que les données mesurées et/ou évaluées sont affichées au moyen d'au moins une unité d'affichage et/ou sont utilisées à des fins de commande ou de réglage.
  4. Procédé pour la détection et la surveillance d'un état de fonctionnement d'un guidage de barre, en particulier d'une installation de production de brames ou de brames minces, comprenant au moins un segment de guidage de barre équipé de rouleaux et/ou de rouleaux partiels qui sont montés au moyen de paliers, dans lequel des enregistreurs de valeurs de mesure sont disposés contre au moins un certain nombre de paliers pour la surveillance des forces aux paliers et/ou de la modification dans le temps des forces aux paliers, caractérisé en ce que les données déterminées par les enregistreurs de valeurs de mesure sont transmises à une unité d'évaluation pour l'évaluation et/ou la signalisation de l'état de fonctionnement de l'installation, d'au moins un segment et/ou d'au moins un rouleau et/ou d'au moins un rouleau partiel, les données évaluées étant prises comme référence pour la surveillance de la cassure des rouleaux et/ou pour la surveillance du glissement des rouleaux.
  5. Procédé selon la revendication 4, caractérisé en ce qu'on prévoit entre les enregistreurs de valeurs de mesure et l'unité d'évaluation, un circuit de transmission de données ou de signaux qui est réalisé sous la forme d'un bus de données, d'un circuit de radiocommunication ou au moyen d'un câblage direct.
  6. Procédé selon l'une quelconque des revendications 4 ou 5, caractérisé en ce que les données mesurées et/ou évaluées sont affichées au moyen d'au moins une unité d'affichage et/ou sont utilisées à des fins de commande ou de réglage.
  7. Procédé selon l'une quelconque des revendications 4 ou 5, caractérisé en ce que les données mesurées et/ou évaluées peuvent faire l'objet d'une évaluation statistique pour l'obtention de statistiques de paliers, de statistiques de symétrie pour la détection de sollicitations irrégulières, de statistiques d'usure pour la détection d'une usure et/ou de statistiques de surveillance pour la détermination d'un entretien préventif, pour l'entretien des machines, l'optimisation des machines et/ou pour la détermination d'une adaptation d'une répartition des sollicitations.
EP09778654.5A 2008-10-02 2009-09-22 Système et procédé de détection de l état de fonctionnement d'un guidage de barre Active EP2334454B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810050393 DE102008050393A1 (de) 2008-10-02 2008-10-02 Anordnung und Verfahren zur Detektierung eines Betriebszustandes einer Strangführung
PCT/EP2009/006839 WO2010037490A1 (fr) 2008-10-02 2009-09-22 Système et procédé de détection de l’état de fonctionnement d’un guidage de barre

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EP2334454A1 EP2334454A1 (fr) 2011-06-22
EP2334454B1 true EP2334454B1 (fr) 2015-11-11

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EP (1) EP2334454B1 (fr)
CN (1) CN102170984B (fr)
DE (1) DE102008050393A1 (fr)
WO (1) WO2010037490A1 (fr)

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US10807158B2 (en) 2015-12-11 2020-10-20 Sms Group Gmbh Bearing block for holding a bearing for a roller

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DE102011088127A1 (de) * 2011-06-07 2012-12-13 Sms Siemag Ag Strangführungssegment einer Strangführung einer Stranggießanlage und Verfahren zum Betreiben eines Strangführungssegments
DE102018130509A1 (de) * 2018-11-30 2020-06-04 Harting Electric Gmbh & Co. Kg Messeinrichtung für Betriebszustand
CN110315139B (zh) * 2019-07-25 2020-11-10 马鞍山钢铁股份有限公司 一种型钢锯机上滑座承载轮轴承劣化状态的监控系统
DE102019212852A1 (de) * 2019-08-27 2021-03-04 Sms Group Gmbh System und Verfahren zum Überwachen, Betreiben und Instandhalten einer industriellen Anlage, insbesondere der metallerzeugenden Industrie oder der Stahlindustrie
EP3878574A1 (fr) * 2020-03-13 2021-09-15 Primetals Technologies Austria GmbH Détermination de l'état des rouleaux de guidage de barre par évaluation des vibrations

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Publication number Priority date Publication date Assignee Title
US10807158B2 (en) 2015-12-11 2020-10-20 Sms Group Gmbh Bearing block for holding a bearing for a roller

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CN102170984B (zh) 2016-04-06
EP2334454A1 (fr) 2011-06-22
CN102170984A (zh) 2011-08-31
DE102008050393A1 (de) 2010-04-08
WO2010037490A1 (fr) 2010-04-08

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