JP2013526413A - Roller device - Google Patents

Abstract

  Forming a segment (100) having a traverse (30) and at least one roller element (10) supported on the traverse (30) via roller bearings (20, 22), in particular a strand guide for a casting machine In the roller device (1), at least three different medium piping means (310, 320, 330, 340, 350) are provided in the traverse (30).

Description

  The present invention relates to a roller device including at least one roller provided in a traverse extending in the roller axial direction. Such a plurality of roller units can be organized, for example, in the strand guides of the casting machine, in particular in complete casting arcs or individual segments, or can be formed as drive rollers, transport rollers or forced rollers.

  A roller device having a roller segment supported on a traverse is known.

  From US Pat. No. 6,057,059, a strand guide for a continuous casting apparatus is known, in which the bearing housing for supporting each roller can be cooled by a coolant supplied via a separate tube line.

  U.S. Pat. No. 6,057,049 shows an apparatus for cooling roller segments in a continuous casting apparatus, in which the bearing housing of each roller segment is supplied with coolant by separately drawn tube lines.

  From US Pat. No. 6,057,049, a strand guide element is known which, in addition to a plurality of rollers, also has a traverse element that is considered for secondary cooling of the slab.

  The disadvantage of these known solutions using coolant supply via separate tube lines is that they are particularly prone to failure based on high temperature loads and risk of breakage in the casting machine.

  If individual segments need to be repaired, or if the order of each roller device is changed, each of these roller devices must be connected to a separately installed tube line system, which is the repair time. Maintain maintenance costs and system failures at significant levels.

German Patent No. 26 37 179 Japanese Patent Laid-Open No. 08-168859 EP 1 355 752

  An object of the present invention is to start from the prior art, and an object of the present invention is to improve the apparatus arbitrary processing force and reliability of a roller device or a segment in a casting machine.

  This problem is solved by a roller device having the features of claim 1.

  Correspondingly, a roller device is provided having a traverse and at least one roller element supported on the traverse via roller bearings. According to the present application, at least three different medium piping means are provided in the traverse. The piping means is particularly provided for guiding a cooling medium for cooling the roller bearing, a cooling medium for cooling the roller, and a lubricant for lubricating the roller bearing.

  In addition to the different cooling media and lubricants that need to be supplied to the roller device and partially discharged from this roller device, the concept of medium in this application is a power supply device and data bus for sensors and switching devices. Is understood to be included. In other words, it is understood that the term “medium” in this application includes all operating means and control means that are supplied to and discharged from the operating roller device.

  Inside, at least three media are guided via piping means, i.e., for example, a cooling medium for bearing cooling, a cooling medium for roller internal cooling, a lubricant, a cooling medium for secondary cooling, and for air pressure control. It is advantageous to form a roller unit having such a traverse in which a compressed air medium, a hydraulic medium for hydraulic control, a power supply medium, a sensor signal guiding medium, etc. are guided, respectively. The piping means extend very protected in the traverse and, accordingly, a separate tube line for the arrangement guided outside allows for high reliability and the optional processing power of the device It is. Furthermore, during the repair operation, additional mounting steps for the connection of separate tube lines, for example for the supply and discharge of the cooling medium for each bearing, are eliminated.

  The cooling medium for bearing cooling, roller internal cooling and / or secondary cooling can be one-component cooling, for example water, or two-component cooling, for example a water / air mixture. Of course, other component mixtures as well as multi-component mixtures can be used as the cooling medium.

  Cooling medium for roller bearing cooling, cooling medium for roller internal cooling, lubricant for lubricating roller bearing, cooling medium for secondary cooling (for example, one component or two component cooling), hydraulic pressure for hydraulic control line Medium, compressed air medium for pneumatic control line, line medium for electric energy supply, line medium for electric control signal, line medium for electric measurement signal, line medium for optical measurement signal, or electric and / or optical It is preferable that one piping means is provided for guiding at least one medium in the bus system. In this way, a corresponding simplification of the supply of the respective media is obtained.

  In another preferred embodiment, the traverse includes a cooling medium for roller internal cooling, a cooling medium for secondary cooling (eg, one-component or two-component cooling), a hydraulic medium for a hydraulic control line, and a compression for a pneumatic control line. An air medium, a line medium for electric energy supply, a line medium for electric control signals, a line medium for electric measurement signals, a line medium for optical measurement signals, or at least one medium of an electric or optical bus system. For forming a segment, in particular a strand guide of a casting machine, having a traverse provided with at least one piping means for guiding and at least one roller element supported on the traverse via roller bearings A roller device is provided. Directing these “new media” directly into the traverse opens up new possibilities for the assembly and reliability of the roller elements.

  In another preferred embodiment, at least one piping means for guiding at least one medium is provided in the traverse, and a roller device is provided to form a segment that serves as a strand guide for the casting machine. A roller device having a traverse and at least one roller element supported on the traverse via roller bearings is proposed.

  Previously, roller traverses (traverses with rollers attached) were used only in the casting arc and not in the segments. Within the casting arc, the rollers need to be removable separately along with the traverse because the dismantling of the casting arc always means a long stop and thereby a production loss. Since the support traverse for supporting the rollers in the casting arc is arranged in the casting direction, the roller traverse has a relatively large resistance moment to support the rollers, but this resistance moment is Is clearly greater than the resistance moment of the media traverse attached to the.

  Until now, the rollers on the media traverse have been used only in the casting arc of the continuous casting machine, but not in the segment. Here, the following is defined for a clear distinction.

  Vertical device: All pairs of rollers of the strand guide up to the maximum position where the strands should be completely solidified are arranged vertically up and down.

  (Circle) Arc type device: The copper plate of the mold and most of the roller pairs are geometrically arranged on an arc, which draws an angle of about 90 °. In the casting direction, the arc is followed by a pair of straightening rollers that straighten the cast strand and take over to the straight horizontal portion of the strand guide.

  Vertical bending mold apparatus: a combination of both apparatus types, in which the mold plate and the first roller pair overlap vertically, and the strand is then bent into an arc by the roller pair. This arc portion is followed again by a pair of straightening rollers that straighten the cast strand and take over the straight horizontal portion of the strand guide.

  Casting arc (strand guide): The casting arc is an old structural type, which is used (and used) for example in vertical bending mold equipment and is located in the arc of the strand guide. The complete components of the equipment are grouped together in the casting arc with respect to the machine structure, which means that the number of roller pairs is typically in the order of 25 to 45 roller pairs; The support of the casting arc for the roller with the traverse is effected via a support traverse arranged in the casting direction; when using a roller traverse, the roller traverse has a relatively large resistance moment (large height, For example, in the case of Arcelor Mittal Steel Eisenhuettenstadt, the thickness is 100 mm), which is formed to support the roller (very robust construction).

  Segment (Strand Guide): New structure of the strand guide: Up to 10 pairs of rollers in the arc part of the strand guide and up to 14-16 in the vertical or bent part (especially for small roller diameters) There are always multiple segments in the arc; the support traverse for the rollers in the segment is located under the roller body, which is located perpendicular to the casting direction It means to do. The guidance of the tube line for the rollers is usually carried out along the support traverse; the rollers are carried out in the segment workshop rather than being exchanged in the apparatus; Exchanged. In this case, the upper frame and the under frame of the segment constitute a unit; the removal of the segment from the strand guide always takes place upwards.

  Arc segment (strand guide): The segment has a maximum of 10 roller pairs like a segment, and the roller pairs are geometrically arranged on the arc section.

  There may be provided piping means for the medium in the form of holes in the traverse, in particular in the form of deep holes, in the form of passages which can be closed by a cover in the traverse and / or in the form of tube lines arranged in the traverse. preferable.

  In this way, the roller device can be constructed as a complete module and the piping means for the media guided in the traverse can be fully tested and pre-adjusted in the pre-assembled state. In this way, the segment can be repaired again in a short time and with low costs. For example, a segment contained in one possible roller device, eg one of 14 roller devices, can be easily replaced. Since the roller device is pre-assembled, pre-tested and pre-adjusted, the roller unit in the segment can be replaced smoothly. Correspondingly, repair costs and repair time in the segment workshop can be reduced compared to conventional segments.

  In the traverse, additional piping means for at least one further medium lead in particular to the cooling medium for secondary cooling (one component cooling or two component cooling), for the supply of power and / or sensors Or it is preferred if the roller device can be configured to be provided to guide the signal for the switching element. All supply and discharge lines for all media required in the roller device, to allow a complete module inspection, protection of all plumbing means in the traverse, and easy installation of the modules In addition, it is preferable to be guided in the traverse.

  In order to obtain quick assembly and simple maintenance, respective media connections communicating with the piping means in the traverse are provided on the end face, long side face or back face of the traverse. In this way, for example, the roller device is screwed to the respective support stand of the segment, after which the respective supply / discharge lines, for example the cooling medium circuit, grease circuit, power supply, sensor and switching device supply / discharge lines, It is possible to connect to the traverse by simply connecting the coupling device to the corresponding medium connection. In this case, the traverse can be formed in such a way that the media connection is already automatically connected to the respective supply line by attaching the traverse to the segment stand.

  Efficient connection devices can be obtained, for example, via suitable coupling elements, for example via hybrid connectors, water clamping plates with face seals, connection tubes with O-rings on both sides, etc. Each supply / discharge line can be easily and reliably connected to the roller device. The plug-in element, the coupling element and the connecting element are preferably formed so that at least two media can be guided simultaneously. In this way, each connection can be carried out more efficiently because the number of coupling steps can also be reduced.

  In order to allow easy maintenance of the respective media passages in the traverse, these media passages can be provided as milled passages, but these passages are opposite the slabs of the traverse, for example the traverse. The side is closed by a cover so that for maintenance or cleaning it is only necessary to open the cover in order to service the respective coolant passage. However, it is also possible to provide an open passage having piping means disposed therein or a passage sealed with silicon. The open passage or the passage sealed with silicon is preferably provided on the side of the traverse opposite to the slab, ie on the “back” of the traverse. In another preferred embodiment, piping means are provided that extend along the traverse and are immovably coupled to the traverse.

  By arranging the respective media passages in the traverse, separate tube lines and cables that have been arranged outside the traverse according to the prior art or drawn over the entire traverse width are no longer external. In this way, the risk of being damaged or damaged by high radiant heat in the respective casting machine can be reduced.

  Furthermore, it is also possible to form arc segments with small roller diameters and correspondingly small casting radii by arranging the media passages in the traverse, which has so far required a large number of tube lines to be drawn in. On the one hand, it was complicated and prone to failure or was generally not possible on the basis of lack of reachability to perform the welding operation. The traverse of the present application can also form a casting machine with a small casting radius of, for example, 4000-5000 mm, and the rollers also allow small roller diameters of, for example, 120 mm-180 mm.

  It is also advantageous that by forming the traverse in the proposed form, the support traverse can be eliminated by attaching the traverse to the segment frame, in which case the support traverse is formed by the traverse. Correspondingly, in the segment frame, each second or each third support member can be eliminated.

  Furthermore, by guiding the respective piping means in the traverse, it is possible to clearly simplify the segment frame structure in which a large number of, for example, seven roller devices are to be accommodated. This is because there is no need to provide a separate tube line connection for the coolant circuit or signal line, or at least not within the previously required range when coupling to each other. .

  Various signal lines for different measurement tasks such as bearing load, bearing temperature, strand temperature, cooling medium temperature, flow rate, pressure, humidity, etc. can be accommodated in the media supply and distribution device in the traverse. In that case, these measurement signals are sent from a central location, e.g. from the end face of the traverse, part of the long side or from the back, e.g. via a multi-function connector, intelligent connector, data bus connection or in other efficient manner. There is no need to place signal lines to the respective sensors outside the traverse housing. In this case, correspondingly, line guides can be formed effectively, and corresponding signal lines are no longer in the area of the casting line exposed to thermal and mechanical hazards.

  Furthermore, it is advantageous here that the sensor of the roller device can already be fully pre-assembled, pre-tested and pre-adjusted in the modular state, ie before the roller device is attached to the segment. This is because the device can form a self-contained system. In this case, the individual piping means for the different media can likewise be fully tested for function. Due to the modular structure and complete functional inspection, the installation time for each segment can be significantly reduced.

  In another preferred form, a media circuit for secondary cooling can be accommodated in the traverse as well. For this reason, advantageously, a water distribution chamber for the nozzles is provided in the roller line, and further, for example, secondary cooling for different strand widths is made possible in order to enable starting and stopping of the individual nozzles. For this purpose, a switching valve can be provided in or on the traverse.

  When the two traverses are pushed side by side, the respective media connections of adjacent traverses are connected, so that the corresponding piping means are connected to each other via the media connections, so that the long sides of each traverse It is advantageous to provide each medium connection for the piping means on the surface. In this way, for example, the cooling circuit from the first roller unit to the last roller unit can be consistently formed as if it were a series circuit, and for this purpose it is separate from the traverse located in the segment. There is no need to do any piping. In other words, the coolant supply line can be connected to the first roller device, then the coolant flows through the roller devices located side by side, and the coolant discharge port is connected to the last roller device. It is to be done. In this way, the number of connections to be drawn from the outside can be further reduced dramatically. Such a structure is naturally also conceivable for measurement signals that can be passed between the respective roller devices by means of the media connection, so that the signals of all the roller units of the segment can be used. It may be sufficient to provide only one measurement bus on one side of a segment.

  In this connection, however, it may be necessary to provide a plurality of connections in the segment, for example in the region of roller internal cooling or bearing cooling, based on the coolant temperature, which means that the flow-through capacity is This is because the capacity of the cooling medium is limited. Correspondingly, fresh cooling medium is always supplied again to allow a constant cooling efficiency beyond the width of the traverse. However, a series circuit of individual rollers in which the same coolant passes through all rollers of the traverse can be obtained in the same way if the coolant capacity is set accordingly. For example, the area where the secondary coolant is supplied does not have this problem, so secondary cooling can be formed as a series circuit, i.e., only the connection at the segment start is for secondary cooling. It means that it is provided as a supply unit.

  Correspondingly, it is advantageous if the individual roller devices can be connected in series with respect to one media circuit or several media circuits.

  The movable side, ie the upper frame of the segment, the traverse can be formed to replace at least part of the tunnel cooling chamber plate by geometric formation. This is obtained in particular by setting the traverse in the transverse direction, i.e. in the casting direction (perpendicular to the respective roller axis), so that the spacing between the individual roller devices is small. . Correspondingly, the water vapor generated by the secondary cooling can be discharged efficiently through the respective suction devices, and the corresponding blower does not need to be dimensioned so much. This is because the ratio of false air drawn through the gap between the traverses is small. In this way, it is further possible to dispense with separate weld plates for forming the respective cooling chambers between the traverses. This also makes it possible to clearly improve the assembly efficiency during the maintenance process and assembly of each segment.

Schematic perspective view of a roller device having a plurality of roller elements mounted on a traverse by roller bearings Schematic side view of movable segment supporting seven roller devices Fixed side and movable side with segments according to FIG. Schematic detail from the side of the segment of FIG. Schematic perspective view of multiple traverse roller devices viewed from the opposite side of the slab Schematic sectional view from the side of the roller devices according to FIG. 5 arranged in parallel Sectional view of the roller device according to FIG. Outline of layout for roller internal cooling Outline of layout for cooling intermediate bearings Outline of secondary cooling of the first embodiment having an external supply unit Outline of secondary cooling of the second embodiment in which the supply line is guided in the traverse Outline of secondary cooling with two different supply paths to control the working width

  Hereinafter, the present invention will be described in detail with reference to the drawings. In this case, the same element in each figure is provided with the same code | symbol, and description of the repetition of each element is partially abbreviate | omitted.

  FIG. 1 shows a schematic perspective view of a roller device 1 having three roller elements 10 supported on roller bearings 20 and 22, respectively. In this case, two roller bearings 22 are provided on the outer sides of the roller device 1, and the roller bearing 20 is provided as an intermediate bearing. Since the roller bearings 20, 22 are coupled to the traverse 30, the roller element 10, the roller bearings 20, 22 and the traverse 30 form a module. The traverse 30 extends in the direction of the roller axis of the roller element 10. The modular roller device 1 can be pre-assembled and pre-adjusted as shown in FIG. 1, so that the roller device 1 can be mounted as a module on a higher mechanical unit, for example a segment of a casting device. .

  The traverse 30 has, on its end surface 32, a first medium circuit for cooling the roller bearings 20 and 22 and a second medium circuit for internally cooling the roller element 10 provided in the traverse 30. And a medium connecting portion 40 communicating with the piping means for the third medium circuit for supplying the lubricant to the roller bearings 20 and 22. Similarly, such a medium connecting portion 40 is provided on the end surface 32 of the traverse 30 facing each other. Depending on the formation, one side is provided with a respective supply port for the cooling medium of the cooling circuit and the opposite side is provided with a respective outlet for the cooling medium, or on one side of the traverse It is possible to provide a supply port and a discharge port for a part of the traverse on one side of the traverse and a supply port and a discharge port for different areas of the traverse on the other side .

  Another medium connection portion 42 communicates with piping means provided in the traverse for supplying water used as a cooling medium for secondary cooling. For secondary cooling, water is applied to the slab from a nozzle 50 provided in the traverse to obtain slab cooling. In this embodiment, the medium connection portion 42 communicating with the piping means for the secondary cooling medium is provided on the long side surface 34 of the traverse. In another embodiment, the media connection 42 can also be used as a media connection for bearing cooling or roller internal cooling. This depends in particular on the layout of the piping means extending in the traverse 30.

  Another medium connection portion 44 formed in the form of a data bus is provided on the long side surface 34 of the traverse 30. In the roller device 1, in order to measure different operating parameters, for example to measure the coolant temperature at different locations in the roller device, bearing load, bearing temperature, strand temperature, through-flow rate, pressure, humidity, etc. A sensor is provided for measuring. Furthermore, a switching device for opening and closing, for example, different sections of secondary cooling can also be provided. The corresponding signal of the sensor and the corresponding switching command can be transmitted via the medium connecting portion 44, and the power supply for the sensor and the switch can be performed.

  Different media, ie, a cooling medium for the first cooling circuit for cooling the bearing, a cooling medium for the second cooling circuit for cooling the roller element 10, and a secondary cooling for the slab. Water for third circuit, lubricant for lubricating bearings 20 and 22, hydraulic medium or compressed air medium for hydraulic control or pneumatic control, individual data line, switching line, sensor line, and roller device The power supply lines for the sensors and switching elements present in 1 are all guided in the traverse 30 in the embodiment shown. This is obtained, for example, by forming corresponding deep holes as piping means in the solid material of the traverse in order to place signal lines through these deep holes. In order to be able to form a deep hole even when the traverse width is large, the hole may be formed from two surfaces. Liquid and gaseous media, for example, the cooling media of the roller bearing cooling circuit and the roller internal cooling circuit, can similarly guide the deep holes in the traverse 30. The lubricant can also guide the inside of such a deep hole.

  In an alternative embodiment, the media piping means is guided in a media passage milled into solid material, closed by a cover. The provision of a milled coolant passage closed with a cover has the advantage, for example, that the coolant passage can be easily opened for maintenance and can be cleaned accordingly. This is not so easy in the case of deep holes. Signal lines, control lines and power supply lines can also be easily inserted into such milled passages. In addition, the milled media path further allows easy access to the individual sensor positions.

  The lubricant passages supplied to the roller bearings 20, 22 can likewise be formed as passages milled into the traverse with deep holes or covers. In this case, for the sake of convenience, a dedicated lubricant passage is provided for each roller bearing 20, 22, so that an oil-air mixture supplied from a lubricant, for example a lubricant distributor, Each of the roller bearings 20 and 22 can be individually distributed.

  In the embodiment shown in FIG. 1 of the roller device 1, all the media are guided in the piping means in the traverse, but naturally only a part of the medium is guided in the piping means in the traverse. It is also possible to guide some media out of the traverse, as is known from the prior art. The decision on this depends in particular on the originally desired formation of the traverse, in particular on its volume. Obviously, only a limited number of media paths can be formed in a relatively small volume traverse. However, in connection with the present invention, piping means guided along the traverse and immovably coupled to the traverse should also be regarded as being “in the traverse”. In this case, accordingly, the piping means are considered to belong to the traverse. For example, if piping means are provided in the form of a passage guided along the traverse and fixedly coupled to the traverse, this piping means is considered to be present in the traverse. A media line guided along the traverse and immovably coupled to the traverse, for example a control line for transmitting an electrical control signal hydraulic control signal, is also considered to be present in the traverse.

  What is important in this connection is that piping means for at least three different media, for example, a coolant passage for bearing cooling, a coolant passage for roller cooling, and lubrication. The hole for supplying the agent is accommodated in the traverse, or “new medium”, for example, a cooling medium for cooling inside the roller, a cooling medium for secondary cooling (for example, one-component cooling or two-component cooling), hydraulic control Compressed air medium for hydraulic medium pneumatic control line for line, line medium for electric energy supply line medium for electric control signal line medium for electric measurement signal, line medium for optical measurement signal, or electric or optical bus At least one plumbing means for the system is either provided in the traverse.

  Correspondingly, most media, previously supplied from outside via separate tube lines, are guided by corresponding passages and holes in the traverse 30 to their respective destinations. This, on the other hand, has the advantage of assembling the roller device 1 since the roller device 1 can be mounted as a module so that not many work steps are required for the mounting of the roller device 1. Due to the mounting as a module, in particular as a fully pre-assembled, pre-inspected and oriented module, the module is no longer provided with a respective media supply after mounting the module to the stand. It only needs to be connected to the media connection. Corresponding couplings can already be performed automatically when the traverse is mounted on the stand. This can also be done in particular via connecting members, such as connectors, coupling elements and coupling elements, or similar devices that should be connected without problems.

  On the other hand, the individual supply members of the media in the traverse are protected against mechanical infringement, breakage and other obstacles that can occur during operation of the roller device. This clearly improves the reliability. In addition, the module can be tested and adjusted prior to installation.

  Depending on the medium used and the respective different application type of the respective roller device 1, corresponding connections 40, 42 and 44 can be arranged at different positions in the traverse 30. The exemplary device configuration shown in FIG. 1 is such that the individual roller devices 1 of the form schematically shown in FIG. 5 form corresponding segments when mounted on a higher-level machine unit, for example a segment. It is advantageous if the end-to-end type or traverse 30-to-traverse 30 type is joined side by side. In this case, as will be described in detail once again with respect to the embodiment shown in FIG. 5, at least the secondary cooling medium connection portion 42 and the data bus connection portion 44 are provided on the long side surface 34 of the traverse 30. It is advantageous to arrange. In other words, this allows the respective media circuits to be automatically connected to each other when the individual traverses are pushed side by side. In other words, here, with respect to the parallel traverses, it is possible to completely eliminate the separate wiring work or piping work for several piping means. By simply joining the traverses side by side, each connection of the piping means via the corresponding medium connection is obtained. In this way a more efficient assembly can be obtained and the connections between the individual media lines in each traverse are arranged between the traverses so that they are protected in a safe position.

  The individual media connections are correspondingly present in a kind of series circuit in this embodiment. Such a series circuit is perfectly fine, for example in the case of a bus line, because here too many signals can be carried on the same bus. In the case of a secondary cooling medium, a series circuit is possible as well, but it is essentially that the secondary cooling medium is not heated along the casting direction, correspondingly the first of the segments This is because a consistent flow of the secondary cooling medium from the roller device to the last roller device can be realized.

  With regard to the cooling of the roller bearings 20 and 22 and the cooling of the respective roller element 10, such a series circuit can also be made possible by the roller device 1. However, it should be noted here that a significant amount of heat needs to be derived via the coolant. Correspondingly, in the case of a series circuit, sufficient cooling efficiency is no longer provided for the last roller device in the corresponding series circuit, possibly because the heating of the cooling medium has already proceeded. Can also occur. Correspondingly, in the example of FIG. 1, the medium connection 40 provided for the flow of the cooling medium for the roller bearings 20, 22 and the cooling medium for the internal cooling of the roller element 10 is provided on the end face 32. Provided in the form of a connection, each roller device 1 has a separate coolant for these primary cooling circuits in order to be able to provide sufficient cooling efficiency for each individual roller device. Have a supply.

  Furthermore, it is conceivable for the lubricant supply coming from the lubricant distributor to reach each of the roller bearings 20 and 22 as claimed separately for each roller device 1. Correspondingly, in the embodiment shown in FIG. 1, a connection for distributing the lubricant is also arranged on the end face 32 of the traverse 30.

  However, here, there can be any other valid combination and location for each media connection of media to be fed and discharged in the traverse 30, and other considerations can be considered. For example, not only are the corresponding plug and liquid connections provided on the long side surface 34 in the final section of the traverse 30, but they are naturally also provided in the region of the inner traverse section, for example, 36. be able to. Even in such a case, the connecting portions and the connecting portions can be automatically connected to each other by simply pushing the traverse 30 side by side when assembling into a large unit.

  In other relationships, individual connections may be connected to the back of the traverse 30 to achieve an advantageous layout of the respective connections in the assembly relationship, for example, because of the need to provide short passages or deep holes in the traverse 30. 38, i.e. on the opposite side of the traverse 30 from the slab. If the medium is fed from the rear face 38, for example in the middle region of the traverse, it is possible to halve the respective required section length of the respective medium path.

  FIG. 2 shows a schematic side view of a portion of the segment 100, in which the movable side of the segment is shown. Corresponding complementary devices are provided on the stationary side, where there are correspondingly seven roller devices as well. This is also shown, for example, in FIG. 3, which shows the movable side and the fixed side of the segment 100.

  The segment 100 includes a segment stand 110, and seven roller devices 1 similar to the roller device 1 shown in FIG. In the state shown in FIG. 2 of the segment 100, each medium supply section in the medium connection section 40 is not yet connected via a corresponding connector or coupling. Since another media connection is located on the back 38 of each roller device 1, the media connection extends within the segment stand 110.

  The individual roller devices 1 are each attached to the segment stand 110 as a complete module equipped. In other words, the individual roller devices 1 are not assembled as a single piece into the segment stand 110 but are preassembled with a traverse 30 and roller elements 10 preassembled on the traverse 30 by means of roller bearings 20, 22. That is, the roller device 1 is directly assembled to the segment stand 110 as a module. After the assembly of the roller device 1 to the segment stand 110, it is only necessary to connect the respective media supply lines and media discharge lines to the connecting devices provided for this purpose.

  In particular, each segment 100 can be configured by fixing the roller device 1 to each segment stand 110 by bolting and / or screwing, although several media supply lines are connected to the segment stand 110. Already linked by mounting the traverse. The other medium supply lines are connected to the respective roller devices 1 after installation by means of plug-in connections and coupling connections. Correspondingly, separate external piping and wiring with fine traverse are eliminated. Still, of course, the piping and wiring situation of the segment stand must be done and provided.

  With the proposed integrated traverse, casters with a small casting radius of, for example, 4000-5000 mm can be formed, and the rollers also allow small roller diameters of, for example, 120 mm-180 mm. By simple decoupling of the media from the back of the traverse or the end surface of the traverse, the media connection can be obtained even with a small radius. Small radii were not previously possible because they did not provide reachability to weld each media supply.

  The advantage of forming the traverse in the proposed form is also that the support traverse in the segment frame can be eliminated by attaching the traverse to the segment frame, in which case the support traverse is This is because it is formed. Correspondingly, the second or third support member can be eliminated from the segment frame, respectively, so that the segment frame can be formed more easily.

  In this way, the possibly damaged roller device 1 in one segment 100 can be replaced relatively easily and quickly, which again removes the respective coupling connection and coupling connection, This is because it is only necessary to replace the modular roller device. The original replacement of the roller device takes place in a typical manner after the entire segment has been replaced with the respective cast strand. The replacement of the roller device is then carried out accordingly at the segment work place.

  Furthermore, the roller device 1 configured in a modular manner can be held in advance on a bearing and replaced quickly and efficiently when necessary. Furthermore, the error rate at the time of installation is small because the roller device is a self-contained system that only needs to be connected to the coupling device and coupling device already provided for it.

  The operational safety and maintenance efficiency of the equipment is as follows: each roller device 1 is a module with a primary cooling circuit, a lubricant circuit, a secondary cooling circuit and a data line device, and the equipment is completely configured before installation. The ability to inspect and pre-adjust is further expanded. In particular, since the roller schedule position can also be adjusted in a module state, the direction adjustment work and the position adjustment work at the time of mounting each roller device 1 in the segment stand 110 can be reduced to a minimum.

  Furthermore, from the proposed structure, separate piping can be completely or largely eliminated as well as separate wiring, so that the reliability of each roller device can be clearly improved. In particular, all media lines and data lines are guided in a traverse, which is a self-contained unit, especially when it is formed from solid material by milling. This reduces the risk of expansion failure when piping separately based on different coefficients of thermal expansion of different components, as the individual passages and deep holes are provided within the monolith traverse 30. it can.

  FIG. 4 schematically shows a side view of the segment 100, but only one roller device 1 with three roller elements 10 supported on corresponding roller bearings 22, 22 can be seen. Well-recognized are secondary cooling sections having nozzles 50, which can exceed the width and cause a cooling medium to act on the slab, as indicated by the fan jet. This section of the secondary cooling unit can be opened and closed by a switching valve provided in the traverse 30.

  The medium connecting portions 42 and 44 provided on the back surface 38 of the traverse 30 are shown in this half sectional view. Further, it can be seen that the supply of the cooling medium for cooling the inside of the roller from the traverse 30 to the roller element 10 is performed through the cover of the roller bearing portion via the lateral supply portion 12 coupled to the traverse.

  FIG. 5 shows another segment 100 ′ in which the individual roller devices 1 abut each other end-to-end so that the traverse 30 abuts the adjacent traverse in the long side section 34. In this way, the medium connection portion 42 for the cooling medium is provided so that all the roller devices 1 can flow through the secondary cooling medium immediately without the need for additional external piping. It is obtained that they are connected to each other. The same applies to the electric data bus. Here, the medium connecting portion 44 is arranged so that automatic connection is established between the data bus connecting portions 44 when the two roller devices 1 are pushed together. Similarly, the long side surface 34 is provided.

  On the back surface 38 of the traverse 30, a milled coolant passage 52 is visible in FIG. Here, the traverse 30 is extended in a protected manner by attaching the traverse 30 to a segment frame 110 not shown in FIG. 5 or providing a separate cover covering the milled coolant passage 52, Nevertheless, there is provided a coolant path that is easily reachable and easy to maintain that can be easily maintained by opening the cover. The cooling medium passage 52 shown is piping means for guiding the bearing cooling medium. In principle, such a passage 52 milled into a solid material, however, can also be formed to accommodate each other medium, in particular also to accommodate an electric medium line or a hydraulic medium line. it can.

  FIG. 5 further shows the end-to-end traverse 30 and the formation of the upper part of the tunnel cooling chamber, but each roller device 1 or the intermediate chamber 60 between the traverse 30 is as if the ceiling is closed. Is filled with the insertion plate 62 so that is provided on the movable side of the segment. In this way, water vapor generated in the tunnel cooling chamber can be efficiently discharged, and there is no need to provide an oversized blower that fights against a large amount of false air.

  Otherwise, the traverse is cast selectively so that it is selective to the insert plate 62, which otherwise replaces the weld plate provided in the segment, but also the traverse 30 itself, as if a consistent cooling chamber top was formed. You may form so that it may connect tightly to the adjacent traverse over the whole width. For this purpose, the traverse needs to be expanded and formed so as to form a structure that is sufficiently consistent with each adjacent traverse in its transverse direction, i.e. in the casting direction.

  FIG. 6 once again shows the segment part of FIG. 5 in a schematic cross-sectional view, from which it is clear that the intermediate chamber 60 is closed between the individual traverses 30 by the insert plate 62. In this way, a tunnel cooling chamber can be efficiently formed. However, as already shown, the traverse 30 can also be formed such that the insertion plate 62 can be omitted, because the individual traverses abut against each other without sufficient clearance.

  FIG. 7 shows a sectional view of the roller device 1 in the region of the roller bearing 20. The traverse 30 is likewise shown in cross section. In the traverse, three piping means 310, 320 and 330 formed as deep holes in the solid material of the traverse 30 are provided. Piping means 310, 320, 330 are used in the illustrated embodiment to direct the cooling medium and lubricant. The piping means 310 is used to guide the lubricant for the roller bearing 20. The piping means 320 conveys a cooling medium for cooling the inside of the roller, and the piping means 330 conveys a cooling medium for cooling the roller bearing 20.

  In the traverse 30 is further provided piping means 340 in the form of a passage open to the rear after milling the solid material of the traverse 30. A hydraulic control line 342 is inserted in the passage. Further, in the traverse 30, there is provided a piping means 350 in the form of a passage extending along the traverse 30 and immovably coupled to the traverse 30, in which a bus system 352 extends.

  Correspondingly, in the traverse 30, piping means 310, 320, 330, 340, 350 are provided for at least three different media.

  FIG. 8 schematically shows the layout of the cooling medium flow for roller internal cooling with a separate supply path for each traverse 30. In this case, the cooling medium is supplied to the corresponding piping means in the traverse 30 via the distributor 400 and the attached medium connection 40. After the cooling medium has returned to the roller 10, the cooling medium is again accommodated and led out by the distributor 420 arranged on the opposite side. Correspondingly, it is a series circuit of individual roller devices.

  FIG. 9 shows an example similar to FIG. 8 of the cooling for the roller bearing 20, in particular the intermediate bearing 20. In this case, the cooling medium is supplied again to the respective traverses via the distributor 410, then transported to the intermediate bearing 20 via the piping means provided in the traverse 30, and then to the housing via the piping means. Guided to the output / distributor 420.

  FIG. 10 shows a schematic arrangement of a cooling medium distributor for secondary cooling. The layout essentially corresponds to that of FIGS. 8 and 9, that is, the cooling medium for secondary cooling is supplied to the traverse 30 via the distributor 410 and then via the nozzle 50 for secondary cooling. Discharged.

  FIG. 11 shows a variation of secondary cooling, in which the traverses 30 are provided with piping means that directly abut against each other and have a media connection 42 corresponding to the media connection 42 shown in FIG. Correspondingly, the supply paths 410 'can be formed in the traverse by the arrangement of the traverses 30 in direct contact with each other. The individual piping means for distributing the secondary cooling medium branches accordingly from this supply channel 410 '. In this embodiment, the secondary cooling medium is applied across the entire width of the traverse.

  In FIG. 12, a first supply path 410 ′ and a second supply path 410 ″ for the secondary cooling medium are provided, the first supply path supplies the cooling medium to the central nozzle 50 ′, and the second supply path 410 ′. An embodiment similar to that of Fig. 11 is shown in which the supply channels supply the cooling medium to the outer nozzle 50. In this way, the distribution of the secondary cooling medium can be appropriately controlled.

DESCRIPTION OF SYMBOLS 1 Roller apparatus 10 Roller element 12 Supply part 20 Intermediate bearing 22 Outer bearing 30 Traverse 32 Traverse end face 34 Traverse long side face 36 Traverse intermediate area 38 Traverse rear face 310, 320, 330 Piping means 340 as deep hole milling Piping means 342 as a connected passage Hydraulic control line 350 Piping means 352 as an attached passage Bus system 40, 42, 44 Medium connection 400 Distributor 410, 410 ', 410 "Distributor 420 Distributor 50, 50' Secondary Cooling nozzle 52 Passage 60 in the traverse Intermediate chamber 62 Insertion plate 100 Segment 110 Segment stand

Claims (23)

Forming a segment (100) having a traverse (30) and at least one roller element (10) supported on the traverse (30) via roller bearings (20, 22), in particular a strand guide for a casting machine In the roller device (1) for
A roller device characterized in that at least three different medium piping means (310, 320, 330, 340, 350) are provided in the traverse (30).   Cooling medium for cooling roller bearings (20, 22), cooling medium for cooling the inside of the roller, lubricant for lubricating roller bearings (20, 22), cooling medium for secondary cooling, hydraulic control line (342) ) Hydraulic media, compressed air media for pneumatic control lines, electrical energy supply line media, electrical control signal line media, electrical measurement signal line media, optical measurement signal line media, or electricity 2. A roller arrangement according to claim 1, characterized in that one and each piping means for guiding at least one medium in the optical bus system (352) is provided. Forming a segment (100) having a traverse (30) and at least one roller element (10) supported on the traverse (30) via roller bearings (20, 22), in particular a strand guide for a casting machine In the roller device (1) for
In the traverse (30), a cooling medium for roller internal cooling, a cooling medium for secondary cooling, a hydraulic medium for the hydraulic control line (342), a compressed air medium for the pneumatic control line, and a line medium for supplying electric energy A line medium for electrical control signals, a line medium for electrical measurement signals, a line medium for optical measurement signals, or at least one pipe for guiding at least one medium of an electrical or optical bus system (352) Means (310, 320, 330, 340, 350) are provided. In a roller device (1) comprising a traverse (30) and at least one roller element (10) supported on the traverse (30) via roller bearings (20, 22),
In the traverse (30), at least one piping means (310, 320, 330, 340, 350) for guiding at least one medium is provided, and the roller device is a segment (strand guide) for the casting machine. 100), a roller device characterized in that it is provided.   Cooling medium for roller internal cooling, cooling medium for secondary cooling, hydraulic medium for hydraulic control line, compressed air medium for pneumatic control line, line medium for supplying electric energy, line medium for electric control signal, electric 5. The measurement signal line medium, the optical measurement signal line medium, or at least one piping means for guiding at least one of an electrical or optical bus system is provided. The roller apparatus as described.   The traverse (30) is additionally provided with piping means for guiding a cooling medium for cooling the bearing and / or a lubricant for lubricating the roller bearings (20, 22). The roller device according to any one of claims 3 to 5.   The roller device according to any one of claims 3 to 6, wherein piping means for at least three different media are provided in the traverse.   Holes in traverse (30), in particular in the form of deep holes, forms of passages (52) that can be closed by at least one cover in traverse (30), forms of reclosed passages, forms of open passages, silicon At least one pipe in the form of a closed passage, in the form of a media guide extending along the traverse and immovably coupled to the traverse, and / or in the form of at least one tube line disposed in the traverse The roller device according to claim 1, wherein a means is provided.   9. At least one medium connection (40) provided on the end face (32) of the traverse (30) communicates with at least one piping means. The roller device described in 1.   The at least one medium connecting part (42, 44) provided on the long side surface (36) of the traverse (30) communicates with at least one piping means. The roller apparatus as described in any one.   The at least one medium connection (42, 44) provided on the back surface (38) of the traverse (30) communicates with at least one piping means. The roller device according to one.   The media connection (40, 42, 44) as a plug-in element, coupling element or coupling element, in particular as a hybrid connector, a water clamping plate with face seals, a connection tube with O-rings on both sides, as a data bus connector, It forms, The roller apparatus as described in any one of Claims 1-11 characterized by the above-mentioned.   13. A roller device according to claim 12, characterized in that at least two media are in communication with the traverse via individual plug-in elements, coupling elements or coupling elements.   The medium connecting portion can communicate with the corresponding medium connecting portion (42, 44) in the traverse of the adjacent roller device (1), and in particular, the piping device corresponding to the medium connecting portion in both traverses can be directly connected. 14. The roller device according to claim 1, wherein the roller device is provided on a long side surface (34) of the traverse (30) so as to enable the roller device.   The traverse (30) is provided with at least one spray nozzle (50) for injecting a secondary cooling medium onto the slab, which communicates with the piping means, and this at least one spray nozzle, in particular the long side surface of the traverse It is provided in (34), The roller apparatus as described in any one of Claims 1-14 characterized by the above-mentioned.   In the traverse, piping means are provided for guiding signal lines for measuring bearing loads, bearing temperatures, strand temperatures, coolant temperatures, flow rates, pressures, humidity for different measurement tasks. The roller device according to any one of claims 1 to 15, wherein   The traverse (30) forms a cooling chamber top with an adjacent traverse of an adjacent roller device, preferably with an extent in the casting direction so as to close essentially without gap with the traverse of the adjacent roller device; The roller device according to claim 1, wherein the roller device is a feature of the roller device.   18. A roller device according to any one of the preceding claims, wherein the roller device is pre-assembled into segments, tested for function and oriented before final assembly.   The roller device according to claim 1, wherein a roller diameter of the roller element is 120 mm to 180 mm. In a segment (100) with a segment stand (110), in particular for a casting machine,
A segment, wherein at least two roller devices according to any one of claims 1 to 19 are provided on a segment stand.   21. Segment according to claim 20, characterized in that it is provided with an insertion element, a coupling element or a coupling element for supplying media to the roller device.   22. A segment according to claim 20 or 21, characterized in that the casting radius formed by the segment is 4000 mm or less, in particular 3000 mm to 4000 mm.   23. A segment according to any one of claims 20 to 22, wherein fewer segment traverses are provided in the segment stand than are provided with roller devices.

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