• 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:
    In a carrying roller changing device (14) for changing a carrying roller (2) of a roller hearth furnace (1), comprising: a housing (17) which can be sealed against the outside ambient atmosphere with a lock (18) via which access to a carrying roller (2) to be dismantled the roller hearth furnace (1) is possible from the inside of the housing (17), and at least one support roller handling device (16, 16 ') adapted to disassemble and mount carrying rollers (2), which is movably arranged in the housing (17) and which at least is partially formed by the lock (18) through the housing (17) extendable, a solution is to be created that provides a support roller changing device in a structurally simple way by which the gas-tightness of the docking connection between the support roller changing device and the roller hearth furnace checked during a support roller change and can be monitored. This is achieved in that the lock (18) has a docking flange (25) and a leak-tightness monitor (26) through which the tightness of the docking connection can be checked when the lock (18) is coupled to the roller hearth furnace (1).
    公开号:AT14571U1
    申请号:TGM56/2015U
    申请日:2015-02-27
    公开日:2016-01-15
    发明作者:
    申请人:Loi Thermprocess Gmbh；
    IPC主号:
    专利说明:

    description
    CARRIER CHANGING DEVICE AND METHOD FOR CHANGING THE CARRYING STRAP
    The invention relates to a support roller changing device for changing a support roller of a roller hearth furnace, comprising: a relative to the outer ambient atmosphere ab¬dichtbares housing having an attachable to the roller hearth furnace sluice on the access under exclusion of the ambient atmosphere to be dismantled Trag¬rolle of Roller hearth furnace from the inside of the housing is possible, and at least one formed for dismantling and mounting of support rollers Tragrollenhandähungsvorrich¬ Tung, which is arranged movable in the housing and which is at least partially formed extendable through the lock out of the housing.
    Further, the invention is directed to an arrangement with a roller hearth furnace for heat treating components and a trained for changing a carrying role of the roller hearth furnace support roller changing device, wherein the roller hearth furnace on its Tragrol¬lenwechselvorrichtung facing side wall for each bearing roller to be stored a Lager¬stutzen with a flange and wherein the support roller changing device a relative to the outer ambient atmosphere sealable housing having a roll to the stove dockable lock, via which access excluding the ambient atmosphere on a to be dismantled carrying roller of the roller hearth furnace from the inside of the Gehäu¬ses is possible, and at least a carrying roller handling device designed for dismantling and mounting carrier rollers, which is movably arranged in the housing and which is designed to be extendable out of the housing at least partially through the lock, having.
    Finally, the invention is directed to a method for the exchange of idlers of a roller hearth furnace by means of a support roller changing device, wherein the Tragrollenwech¬selvorrichtung is moved laterally next to the roller hearth to the position of the dismantling Trag¬rolle, the idler roller is decoupled from a drive unit and then the Tragrol¬lenwechselvorrichtung is zoom approach to the roller hearth furnace to be removed to the support roller, wherein a lock of the support roller changing device is coupled gas-tight to the roller hearth furnace.
    A support roller changing device of the type described input is known for example from DE 10 2011 079 771 A1, this application is also a method for Tragrol¬lenwechsel according to the input designated type can be found. This known Tragrol¬lenwechselvorrichtung is laterally next to the roller hearth furnace movable and has a ein¬hauste, i. In a housing of the support roller changing device accommodated carrying roller handling device. For supporting role change the support roller changing device is moved along the furnace longitudinal axis and positioned at the corresponding change position. Then for the support role change a lock of the support roller changing device gasdichtan the roller hearth furnace via a flange, so that a gas-tight insulation between the interior of the housing of the support roller changing device and the environment prevails. In a support roller change, a lance of the carrier roller handling device moves into the hollow carrier roller to lift the replacement roller to be replaced and to extract the carrier roller from an opening formed in the wall of the roller hearth furnace in which the carrier roller is rotatably mounted during operation. In this Tragrollenwechselvorrich¬ it is assumed that the threaded flange ensures absolute gastightness, without directly after docking of the support roller changing device to the roller hearth furnace or even during the idler change a check for gas tightness of the flange connection. In addition, the screwing to produce the Flansch¬ connection is a disadvantageous effort, which is cumbersome and time-consuming and must be used for the staff.
    The invention has for its object to provide a solution that provides a support roller changing device in a structurally simple manner, in which the known from the prior art disadvantages are avoided and checked by the at a Tragtragwechseldie the gastightness of the docking connection between the idler roller changing device and the roller hearth furnace and can be monitored.
    In a support roller changing device of the type referred to input the task according to the invention is achieved in that the lock a docking flange and a Dichtheits¬ monitoring, by which in Dichtkop coupled to the roller hearth the tightness of the docking connection is verifiable comprises.
    Further, in an arrangement of the type referred to input, which comprises a Tragrollen-wechselvorrichtung and a roller hearth furnace, the object according to the invention solved by the lock a docking flange and a leak detection, by welcheebei coupled to the flange of the roller hearth furnace lock the tightness of Andockver ¬bindung verifiable, has.
    Finally, in a method of the type described input, the object erfin¬Dungsgemäß solved in that when docking between a flange of Rollen¬herdofens and a docking of the lock a monitoring chamber is formed, in which a pressure monitoring fluid to check the gas tightness of Andockver¬ binding is initiated.
    Advantageous and expedient refinements and developments of the invention will become apparent from the dependent claims.
    By means of the invention, a possibility is provided in a simple manner, by means of which the connection between support roller changing device and roller hearth furnace can be checked for gas tightness in order to ensure that a change of a carrying roller takes place to the exclusion of the external ambient atmosphere. The possibility of checking the gas-tightness provided by the invention greatly contributes to increasing the reliability of the drive during a change of support roller, without having to interrupt the heat treatment process for a long time when changing it. Because according to the invention, the temperature of the roller hearth furnace can be lowered to only about 800 ° C for Rollenwechsel, whereby the heating time for receiving the production can be kept short. Because usually we are in a manual role change the roller hearth down to about 200 * 0 down, which represents an enormous amount of time both for cooling and for heating for production recording. From a possibility according to the invention of checking for gas-tightness, no use was made in the known state of the art, nor was such a possibility thought of. The possibility created by the invention of checking the gas-tightness opens up the option of carrying out a supporting roller change as far as possible in an automated manner.
    In an embodiment of the support roller changing device according to the invention and the arrangement according to the invention, it is provided that the leakage monitoring comprises a fluid supply element leading to an inspection fluid and at least two sealing elements arranged on different radii of the docking flange, wherein the at least two sealing elements are annular and form a radial gap between them in which the fluid supply element opens. With the aid of this embodiment of the support roller changing device, when the support roller changing device is docked to the roller hearth furnace, the radial gap is covered by the roller hearth furnace, so that a radial cavity is formed between the docking flange and the roller hearth furnace. This cavity is then used for leak testing by passing a check fluid into the cavity or radial gap via the fluid delivery element, and this check fluid builds a pressure that remains constant when leaking. In this way, the gas tightness of the docking connection can be checked in a simple manner.
    Accordingly, the invention provides in an embodiment of the arrangement that beiangekoppelter lock on the roller hearth furnace of the radial gap of the docking flange and the
    Flange of the roller hearth furnace form a monitoring chamber, in which the Fluidzufüh¬ guiding element for checking the tightness of the docking the test fluid introduces. The monitoring chamber thus corresponds to the cavity described above, which is defined and formed by the radial gap of the docking flange and the roller hearth furnace.
    In order to define the seat and the arrangement of the sealing elements defined on the docking flange and to improve the maintenance of the sealing elements, the invention provides in Ausgestal¬tung the support roller changing device, that a respective sealing element in a entspre¬chenden radial recess formed in the Andockflansch is, is arranged.
    So that during a support roller change the docking flange also rests securely and gastdichtan the roller hearth furnace, the invention provides in an embodiment of Tragrollenwechselvor¬richtung that the lock has a clamping system, wherein the clamping system is the An¬dockflansch form-fitting coupled to the roller hearth furnace. With the help of the clamping system, the lock can be fixed to the roller hearth furnace, which can be a hydraulically operated clamping system.
    A structurally particularly favorable possibility for realizing a positive connection between the docking flange and the roller hearth furnace is given in the inventive support roller changing device characterized in that the clamping system at least wipe a docking position and a basic position adjustable clamping element, said at least one clamping element in the docking position engaged with the roller hearth furnace and formed out of engagement with the roller hearth furnace in the home position.
    In the arrangement, the positive connection is then formed in a special Ausgestal¬tung accordingly in that the lock has a clamping system with at least one adjustable between a docking position and a basic position clamping member, wherein the clamping member in the docking position engages the flange of the roller hearth furnace and in the basic position releases the flange.
    To compensate for tolerances, it is advantageous if, in an embodiment of Tragrollen-wechselvorrichtung the lock is formed like a nozzle and has a compensator.
    Finally, the invention provides in an embodiment of the method according to the invention, that the gas-tightness of the docking connection is checked on the basis of the pressure, which is established by the introduced pressure monitoring fluid in the monitoring chamber in gas tightness of the docking connection.
    It is understood that the features mentioned above and those yet to be explained not only in the combination specified, but also in other combinations or in isolation, without departing from the scope of the present invention. The scope of the invention is defined only by the claims.
    Further details, features and advantages of the subject matter of the invention will become apparent from the following description taken in conjunction with the drawings in which spielsweise a preferred embodiment of the invention is shown.
    In the drawing: FIG. 1 is a schematic plan view of an arrangement according to the invention with one
    2 shows a perspective view of the roller roller changing device docked on the roller hearth furnace, FIG. 3 shows a perspective detailed view of a flange of the roller hearth furnace, FIG 5 shows a perspective detail view of a lock of the supporting roller changing device with positive connection with the roller hearth furnace, FIG. 6 shows a perspective detailed view of the lock of the supporting roller changing device after the positive connection has been removed 7 shows a perspective sectional view of the lock of the supporting roller changing device in the docked state on the flange of the roller hearth furnace, FIG. 8 shows a further perspective sectional view of the lock and FIG their Andock¬ flange, Figure 9 shows a further perspective sectional view of the lock and their
    11 shows a sectional view in plan view of the lock of the support roller changing device and the flange of the roller hearth furnace before docking of the support roller changing device, and [0033] FIG. 12 shows a sectional view. [0033] FIG in plan view of the lock of Tragrollenwechselvor¬ direction and the flange of the roller hearth furnace after docking Tragrol¬lenwechselvorrichtung.
    In Figure 1, a roller hearth furnace 1 is shown in a schematic plan view, in which the respective support rollers 2 are rotatably supported by means of a respective support roller bearing system. In the exemplary embodiment shown in FIG. 1, the roller hearth furnace 1 is designed for the continuous heat treatment of steel strips 3. Figure 1 is an exemplary Darstel¬lung and shows only a section of the roller hearth furnace 1. For this section, the roller hearth furnace 1 seven support rollers 2, wherein for reasons of clarity, only one of the seven support rollers 2 is provided with different reference numerals. The roller hearth furnace 1 is hermetically sealed against its surroundings and is operated under a protective gas atmosphere. The support rollers 2 are arranged along the longitudinal axis of the roller hearth furnace 1 and transport the heat-treatable steel strip 3, wherein the process takes place at temperatures above 1000 ° C inside the roller hearth furnace 1. A heating device 4 ensures the temperature required for the process inside the roller hearth furnace 1, whereas a protective gas device 5 is responsible for setting the desired protective gas atmosphere inside the roller hearth furnace 1. Each support roller 2 is connected outside of the roller hearth furnace 1 with a drive unit 6, which rotates the jewei¬lige support roller 2 to promote the steel strip 3 through the roller hearth furnace 1. The not shown in detail in the figures storage system of each support roller 2 comprises a first bearing element 7, which is mounted on a first side wall 8 of the Rollen¬herdofens 1 and must be dissolved in a support roller change of the first side wall 8, and a second bearing element 9, which is mounted on one of the first side wall 8 opposite, the second side wall 10 of the roller hearth furnace 1 and does not have to be solved by the second side wall 10 during a support roller change, but instead remains there for storage of the newly inserted support roller 2. In the storage system, a respective support roller 2 is rotatably mounted in the roller hearth furnace 1 with its first longitudinal end 11 by means of the first bearing element 7 and with its second longitudinal end 12 by means of the second bearing element 9, wherein the first bearing element 7 and the second bearing element 9 are formed gas-tight during the furnace operation, no protective gas can escape from the interior of the roller hearth furnace 1. Extending from the first longitudinal end 11 of a respective support roller 2 is a shaft journal 13 which projects outwardly from the respective first bearing element 7 and is drive-connected to the associated drive unit 6, by which a respective support roller 2 is rotated during operation of the roller hearth furnace 1 , When a support roller 2 is exchanged, the drive unit 6 is first released from the shaft journal 13 before the support roller 2 to be dismantled is removed together with the first bearing element 7 from the roller hearth furnace 1, whereas the second bearing element 9 remains on the roller hearth furnace 1 and also the new support roller to be replaced 2 rotatably supports.
    As Figure 1 further shows schematically, a Tragrollen-wechselvorrichtung 14 for changing a support roller 2 of the roller hearth furnace 1 is arranged laterally from the roller hearth furnace 1, which is formed along the first side wall 8 of the roller hearth furnace 1 and the side wall 8 and away from this, to be positioned in front of a support roller 2 to be dismantled. The carrying roller changing device 14 and the roller hearth furnace 1 form an arrangement 15 which is intended for changing a carrying roller 2. For supporting roller change, the first bearing element 7 is released from the first side wall 8 and the support roller 2 to be replaced is pulled out of the roller hearth furnace 1 the first bearing element 7 by means of a carrying roller handling device 16 of the roller roller changing device 14. The carrying roller changing device 14 comprises, in addition to the carrying roller handling device 16, a housing 17 which can be sealed against the outer ambient atmosphere and has a lock 18 serving for coupling to the roller hearth furnace 1, via which access under exclusion of the ambient atmosphere to a carrying roller 2 to be dismounted from the housing 17 is possible is. The carrying roller handling device 16 is arranged in the housing 17 such that it can be moved toward the side wall 8 and away from it and laterally to the side wall 8. In this case, a single support roller handling device 16 can be used both for disassembling a support roller 2 from the roller hearth furnace 1 and for mounting a new support roller 2. It is also conceivable that a support roller handling device 16 is used for disassembly and is then moved away from the furnace, after which a further support roller handling device 16 'is used for assembly, which is equipped with a support roller 2 to be mounted, which is indicated schematically in Figure 1. The two carrying roller handling devices 16 and 16 'are movable within the gas-tight housing 17, can be positioned in front of the lock 18 and can be moved out of the housing 17 at least partially through the lock 18. Such a support roller change can thus take place with one or two support roller handling devices 16, 16 ', the roller hearth furnace 1 being cooled to about 800.degree. C. before the support roller change and flushed with nitrogen.
    In order to keep the change of a support roller temporally short and thus minimize the downtime, the support roller change is carried out laterally of the roller hearth furnace 1, wherein the operation of the support roller handling device 16, 16 'is shielded from the outside Umgebungat¬mosphäre. Accordingly, the one or both support roller handling devices 16, 16 'are operated in the housing 17 sealed from the outside ambient atmosphere. In such a housing 17, the one or both support roller handling devices 16, 16 'are then movably arranged and accommodated. In a support roller change with such a gas-tight housing 17, which is hermetically sealed against the external environment, the drive unit 6 is removed from the shaft journal 13 of the support roller 2 before the actual Tra¬gerollenwechsel. Through the lock 18, the housing 17 is sealed relative to the outer atmosphere or environment to the roller hearth furnace 1 dockable or coupled, as shown in Figure 2. The lock encloses the first bearing element 7, which together with the dismounting support roller 2 from the roller hearth furnace 1 is then pulled out. In other words, the one or both idler handling devices 16, 16 'are movably disposed in the housing 17 sealed to the outside environment, and at least partially extendable therefrom through the lock 18 in the wall of the housing 17 to have access to the idler roller 2 to be disassembled , After docking Coupling the housing 17 to the roller hearth furnace 1, as shown in Figure 2, in the housing 17 itself also a protective gas atmosphere is set, which corresponds to the inert gas atmosphere of the interior of the roller hearth furnace 1. When accommodated in the housing 17, the carrying roller handling device 16 or the two carrying roller handling devices 16, 16 'can be movable within the housing 17 at least in two spatial directions, as indicated by the arrows in FIG. In addition, the housing 17bzw. the carrying roller changing device 14 can be moved in at least two spatial directions in order to move laterally toward the desired carrying roller 2 and to approach the first side wall 8 for docking.
    The support roller 2 to be replaced is in the support roller change from an opening 19 (see, for example, Figure 1 or 3) pulled out of the first side wall 8 of the roller hearth furnace 1. More specifically, the roller hearth furnace 1 at its first side wall 8 for each support roller 2 on a spigot 20 with a flange 21, wherein a respective support roller 2 is introduced with its second longitudinal end 12 through the opening 19 of the nozzle 20 in the roller hearth furnace 1 and with their first longitudinal end 11 is secured to the flange 21 (see, for example, Figure 3). Stub 20 and flange 21 of the roller hearth furnace 1 are shown only in FIG. 3, but not in the schematic illustration of FIG. With reference to FIG. 4, the first bearing element 7 of a respective support roller 2 comprises a bearing housing 22 in which a bearing for rotatably supporting the first longitudinal end 11 of the support roller 2 is received, and a bearing intermediate plate 23 on which the bearing housing 22 is seated. Via the bearing intermediate plate 23, the bearing housing 22 is attached to the first side wall 8 of the roller hearth furnace 1 via the flange 21, the support rollers 2 each having an insulating plug 24 disposed in the first side wall 8 of the roller hearth furnace 2 with the support roller 2 installed the carrying roller 2 is mounted in a gas-tight manner on the first side wall 8 of the roller hearth furnace 1 by means of the first position element 7. If a support roller 2 is to be replaced, the screw connection between the bearing intermediate plate 23 and the housing flange 21 is released and the first bearing element 7 is removed together with the support roller 2 and the insulating plug 24 and transported away from the roller hearth furnace 1.
    When pulling out the support roller 2 to be replaced and when inserting a new carrier roller 2, care must be taken that the support roller change is gas-tight and no ambient air enters the interior of the roller hearth furnace 1. As already noted above, the bearing intermediate plate 23 on the housing flange 21 is blocked in the mounted state of the carrying roller 2. In addition, the bearing intermediate plate 23 has the important function of ensuring the gas tightness during the preparations for disassembly of the support roller 2. Because in a first step of disassembly, the drive unit 6 is removed from the shaft journal 13, so that the support roller handling device 16 can zoom in on the support roller 2 to be dismantled. If an exchange under absolute gas tightness, i. excluding the outer ambient atmosphere is required, then the carrying roller changing device 14 with the arranged in gas-tight housing 17 support roller handling device 16 such and the roller hearth furnace 1 moved so that the key-shaped lock 18 is pushed over the bearing intermediate plate 23 and on the housing flange flange 21 dich¬ tend. This position is shown in FIGS. 5 to 7 and 12.
    Reference is now made to Figures 5 through 12, which illustrate a way to monitor the gas tightness of the docking connection. In order to be able to check whether the lock 18 of the carrying roller changing device 14 is actually docked gas-tight to the flange 21 of the roller hearth furnace 1, it is provided according to the present invention that the lock 18 has a docking flange 25 and a tightness monitoring 26. With the help of tightness monitoring 26, the leak tightness of the docking connection can be checked in the roller hearth furnace 1-coupled lock 18. The docking surface of the docking flange 25 is formed with a protruding, stepped peripheral edge 29 so that the peripheral edge 29 surrounds the flange 21 of the roller hearth furnace 1 in the docking position. receives. The docking flange 25 also has two grooves (see, for example, FIGS. 8 to 12) for respective O-ring seals. The two grooves circumferentially formed in the backward offset to the peripheral edge 29 flange surface 40 (see for example Figure 9) of the docking flange 25 at different radii form respective Radialaus¬nehmungen 27a and 27b, which in turn between them a web 28 (see, for Figur9) form. In the radial recesses 27a, 27b are executed as respective O-ring seals sealing elements 30a, 30b. Thus, a respective sealing member 30a, 30b is disposed in a corresponding radial recess 27a, 27b formed in the docking flange 25. Now, when the docking flange 25 of the idler changing device 14 docks to the flange 21 of the roller hearth furnace 1, the flange surface of the flange 21 presses against the sealing elements 30a, 30b as shown in, for example, FIG. 7 and FIG. 12. In this position, there is between the flange 21 the roller hearth furnace 1 and the Andockflansch25 of the lock 18 with its sealing elements 30a, 30b a radial gap 31 is formed (see, for example, Figure 11), in the machine is docked a Verprüfungsfluid (nitrogen, for example) is blown. On the basis of the injection of the test fluid, the docking connection can be checked for leaks on the basis of the pressure maintenance over time.
    For the injection of the test fluid or of nitrogen, the tightness monitoring 26 comprises a fluid supply element 32 guiding the test fluid and the two sealing elements 30a, 30b arranged at different radii of the docking flange 25. The fluid feed element 32 is formed outside the sheath 18 as a conduit (see FIGS. 5 and 6) and extends outwardly at the nozzle-like lock 18 as far as the docking flange 25, where the conduit or fluid delivery element 32 extends radially inwardly within the docking flange 25 and in said radial gap 31 between the two sealing elements 30a, 30b opens. In FIG. 10, the opening 34 between the two sealing elements 30a, 30b corresponds to the mouth of the fluid delivery element 32.
    When coupled lock 18 to the roller hearth furnace 1 of the Radialspalt 31 desAndockflansches 25 and the flange 21 of the roller hearth furnace 1 from the Dichtheitsüberwa¬ chung 26 (see, for example, Figure 12) assigned monitoring chamber 33, whereas in the position, the 11 and in which the docking flange 25 has not yet fully moved up to the flange 21 and has docked, the monitoring chamber 33 is open to the side of the flange 21.
    In the docked position, the fluid delivery element 32 initiates the checking fluid (for example nitrogen) into the monitoring chamber 33 to check the tightness of the docking connection. The gas-tightness of the docking connection is checked on the basis of the pressure which is built up by the introduced pressure-monitoring fluid in the monitoring chamber 33 in the case of gas-tightness of the docking connection.
    In order to pull the docking flange 25 close to the side wall 8 of the furnace 1, the docking flange 25 further comprises two hydraulic clamping cylinders 41 which engage behind the flange 21 of the roller hearth furnace 1, as shown for example in FIG. In other words, the lock 18 has a clamping system 43, which forms the docking flange 25 in a form-fitting manner on the roller hearth furnace 1. In this case, the clamping system 43 per hydraulic cylinder 41 has a clamping element 42 which can be adjusted between the docking position (see FIG. 5) and a basic position (see FIG. 6). A respective clamping element 42 is in the docking position with the roller hearth furnace 1 in engagement and in the basic position with the roller hearth furnace 1 disengaged formed. FIG. 6 shows the basic position of the clamping elements 42, which are pivoted radially outwards in this position, so that the peripheral edge 29 of the docking flange 25 can receive the flange 21. Once the flange 21 is received, the hydraulic tensioning cylinders 41 cause the clamping members 42 to pivot radially inwardly causing the clamping members 42 to engage behind the flange 21 of the roller hearth furnace 1. The clamping elements 42 are thus mounted pivotably on the lock 18 in the radial direction with respect to the docking flange 25. Accordingly, in the arrangement 15 of roller hearth furnace 1 and carrying roller changing device 14, the lock 18 has the clamping system 43 with the clamping elements 42 adjustable between the docking position and the home position, the clamping elements engaging the flange 21 of the roller hearth furnace 1 in the docking position (see, for example, FIG Grundpo¬sition (see, for example, Figure 6) the flange 21 release.
    To compensate for, for example thermally induced changes in length, the lock 18, which is formed like a nozzle, a compensator 44, which is known to be a flexible element to compensate for movements in pipes.
    In summary, the carrying roller changing device 14 according to the invention for changing a carrying roller 2 of a roller hearth furnace 1 has been described above. This roller-type roller changing device 14 comprises the housing 17 sealable with respect to the outside ambient atmosphere and the supporting roller handling device 16, 16 'formed at least one for dismantling and assembling supporting rollers 2. The housing 17 has the sluice 18 which can be coupled to the roller hearth furnace 1, by means of which access is possible from the inside of the housing 17, excluding the ambient atmosphere, to a support roller 2 of the roller hearth furnace 1 to be disassembled. Furthermore, the at least one carrying roller handling device 16, 16 'is arranged movably in the housing 17 and at least partially extendable out of the housing 17 through the lock 18. The lock 18 has the docking flange 25 and the leak-tightness monitoring 26, by means of which, with the lock 18 coupled to the roller hearth kiln 1, the tightness of the docking connection can be checked. In order for the support roller changing device 14 according to the invention to be able to connect tightly to the flange 21 of the roller hearth furnace 1, the flange surface of the docking flange 25 has been provided with a double O-ring seal 30a, 30b. The space between these seals is filled with nitrogen and tested for leaks. This is done via the pressure maintenance over a certain period of time.
    Furthermore, an arrangement 15 according to the invention has been described above with the roller hearth furnace 1 for heat treating components 3 and the support roller changing device 14 designed to replace a carrying roller 2 of the roller hearth furnace 1, wherein the roller hearth furnace 1 faces the side wall facing the support roller changing device 14 for each supporting roller 2 having the bearing neck 20 with the flange 21. Furthermore, the roller roller changing device 14 has the housing 17, which can be sealed against the outer ambient atmosphere, which comprises the lock 18 which can be coupled to the roller hearth furnace 1, via which access under exclusion of the ambient atmosphere to a roller 2 to be dismantled of the roller hearth furnace 1 from the interior of the housing 17 is possible is. The least one designed for dismantling and mounting support rollers 2 Tragrollenhandha¬bungsvorrichtung 16, 16 'is arranged to be movable in the housing 17 and formed at least partially through the lock 18 from the housing 17 extendable. In particular, the lock 18 has the docking flange 25 and the leak-tightness monitor 26, by means of which, with the lock 18 coupled to the flange 21 of the roller hearth furnace 1, the tightness of the docking connection can be checked.
    Finally, with the arrangement described above, the erfindungsge¬mäße method for exchanging support rollers 2 a roller hearth furnace 1 by means of Tragrol¬lenwechselvorrichtung 14 perform, the support roller changing device 14 is moved laterally next to the roller hearth furnace 1 to the position of the disassembled support roller 2 , the carrier roller 2 is decoupled from the drive unit 6 and then the Tragrollenwechselvor¬richtung 14 is moved up to the roller hearth furnace 1 to be dismantled support roller 2, wherein the lock 18 of the support roller changing device 14 is gas-tightly coupled to the roller hearth furnace 1. When docking the monitoring chamber 33 is then formed according to the invention between the flange 21 of the roller hearth furnace 1 and the docking flange 25 of the lock 18, in which a pressure monitoring fluid for checking the gas-tightness of An'Dockverbindung is initiated.
    Of course, the invention described above is not limited to the described and illustrated embodiment. It will be appreciated that numerous modifications which are obvious to a person skilled in the art according to the intended application can be made to the embodiment shown in the drawing without departing from the scope of the invention. The invention includes everything that is included in the description and / or illustrated in the drawing, including what is obvious to those skilled in the art, other than the specific embodiment.
    权利要求:
    Claims (12)
    [1]
    Claims 1. Support roller changing device (14) for changing a carrying roller (2) of a roller hearth furnace (1), comprising: a housing (17) which can be sealed against the outside ambient atmosphere and has a lock (18) which can be coupled to the roller hearth furnace (1) Access under exclusion of the ambient atmosphere to a support roller (2) of the roller shutter furnace (1) to be dismantled from inside the housing (17) is possible, and at least one support roller handling device (16, 16 ') designed for dismantling and mounting support rollers (2). ), which is arranged to be movable in the housing (17) and which is at least partially extendable out of the housing (17) through the lock (18), characterized in that the lock (18) has a docking flange (25) and a Leakage monitoring (26), by which at the roller hearth furnace (1) coupled to the lock (18), the tightness of An'Dockverbindung is verifiable, has.
    [2]
    2. support roller changing device (14) according to claim 1, characterized in that the density monitoring (26) comprises a fluid leading a check fluid supply element (32) and at least two on different radii of the Andockflansches (25) arranged sealing elements (30a, 30b), wherein the at least two sealing elements (30a, 30b) are annular and form between them a radial gap (31), in which the fluid feed element (32) opens.
    [3]
    Support roller changing device (14) according to claim 2, characterized in that a respective sealing element (30a, 30b) is disposed in a corresponding radial recess (27a, 27b) formed in the docking flange (25).
    [4]
    4. carrying roller changing device (14) according to any one of the preceding claims, characterized in that the lock (18) comprises a clamping system (43), wherein the clamping system (43) the docking flange (25) form-fitting manner to the roller hearth furnace (1) is formed an¬koppelnd.
    [5]
    A support roller changing device (14) according to claim 4, characterized in that the tensioning system (43) comprises at least one clamping element (42) adjustable between a docking position and a home position, the at least one clamping element (42) being in docking position with the roller hearth furnace (1) in FIG Engaging standing and in the Grundposi¬tion with the roller hearth furnace (1) is formed out of engagement.
    [6]
    6. support roller changing device (14) according to any one of the preceding claims, characterized in that the lock (18) is formed like a nozzle and a Kompensa¬ gate (44).
    [7]
    7. arrangement (15) with a roller hearth furnace (1) for heat treating components (3) anda for changing a carrying roller (2) of the roller hearth furnace (1) formed Tragrollen-wechselvorrichtung (14), wherein the roller hearth furnace (1) at its the support roller changing device (14) facing side wall for each support roller to be stored (2) has a bearing neck (20) with a flange (21), and wherein the support roller changing device (14) relative to the outer ambient atmosphere sealable housing (17), the one on the roller hearth furnace (1) attachable lock (18) via which access under the exclusion of the ambient atmosphere to be dismantled carrying roller (2) of the roller hearth furnace (1) from the interior of the Gehäu¬ses (17) is possible, and at least one for disassembling and Mounting supporting rollers (16, 16 ') formed by carrying rollers (2), which is movably arranged in the housing (17) and which at least partially passes through the lock (1 8) hin¬durch from the housing (17) is formed extendable, characterized in that the lock (18) has a Andockflansch (25) and a leakage control (26) through which at the flange (21) of the roller hearth furnace ( 1) coupled lock (18) the tightness of the docking connection is verifiable, has.
    [8]
    8. Arrangement (15) according to claim 7, characterized in that the Dichtheitsüberwa¬¬ chung (26) a fluid leading a verification fluid supply element (32) and at least two on different radii of the Andockflansches (25) arranged Dichtele¬mente (30a, 30b ), wherein the at least two sealing elements (30a, 30b) are of annular design and form therebetween a radial gap (31) into which the fluid feeding element (32) opens.
    [9]
    9. Arrangement (15) according to claim 8, characterized in that with coupled lock (18) to the roller hearth furnace (1) of the radial gap (31) of the Andockflansches (25) and the flange (21) of the roller hearth furnace (1) a monitoring chamber (33 ), in which the fluid supply element (32) initiates the checking fluid for checking the tightness of the docking connection.
    [10]
    10. Arrangement (15) according to one of claims 7 to 9, characterized in that the lock (18) comprises a clamping system (43) with at least one adjustable between a docking position and a basic position clamping element (42), wherein the Klemmele¬ment (42) engages behind the flange (21) of the roller hearth furnace (1) in the docking position and releases the flange (21) in the basic position.
    [11]
    11. A method for exchanging support rollers (2) of a roller hearth furnace (1) by means of a roller transfer device (14), wherein the support roller changing device (14) laterally next to the roller hearth furnace (1) to the position of the support roller (2) to be dismantled, the support roller (2) is decoupled from a drive unit (6) and then the roller transfer device (14) to the roller hearth furnace (1) is moved to the to be dismantled carrier roll (2), wherein a lock (18) of the support roller changing device (14) gas-tight to the roller hearth furnace (1) is coupled, characterized in that when docking between a flange (21) of the roller hearth furnace (1) and a docking flange (25) of the lock (18) a monitoring chamber (33) is formed, in which a pressure monitoring fluid for checking the gas tightness of the Andockverbin ¬dung is initiated.
    [12]
    12. The method according to claim 11, characterized in that the gas-tightness of An'dockverbindung based on the pressure, which is established by the introduced Drucküberwachungsfluidin the monitoring chamber (33) in gas-tightness of the docking, is checked. For this 3 sheets of drawings
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    同族专利:
    公开号 | 公开日
    AT14581U1|2016-01-15|
    EP3048402B1|2017-11-15|
    US20160208858A1|2016-07-21|
    EP3048405A1|2016-07-27|
    EP3048402A1|2016-07-27|
    US10161454B2|2018-12-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2003027561A1|2001-09-26|2003-04-03|Ann Helen Hystad|An arrangement for monitoring and/or testing of flange joints|
    DE202005006587U1|2005-04-20|2005-08-25|Rollmod Hochtemperatur-Transportsysteme Gmbh|Drive device for rolls of roller hearth furnaces and roller hearth furnace|
    JP2009145120A|2007-12-12|2009-07-02|Yamatake Corp|Leaking fluid collection structure and fluid leakage detection system|
    DE102011079771A1|2011-07-25|2013-01-31|Ebner Industrieofenbau Gmbh|Roller changing device for ovens|
    DE3004805C2|1980-02-09|1981-12-10|Sundwiger Eisenhütte Maschinenfabrik Grah & Co, 5870 Hemer|Method and device for replacing support rollers in roller hearth continuous annealing furnaces|
    GB2220732B|1988-07-11|1991-12-18|Talentum Developments Limited|Sighting aperture clearance means for flame monitoring apparatus|
    MY105657A|1989-03-17|1994-11-30|Ngk Insulators Ltd|Apparatus for driving rollers in roller hearth kiln|
    DE4041217A1|1989-12-23|1991-07-11|Reining Heisskuehlung Gmbh & C|Driven roller for continuous heating furnace - has core tube enclosed in removable layer of thermal insulation|
    DE4237862C1|1992-11-10|1994-01-13|Riedhammer Gmbh Co Kg|Device for receiving and driving a transport roller of a roller oven|
    US5819354A|1996-07-16|1998-10-13|Alonso; John R.|Apparatus for cleaning ducting|
    JP2003156287A|2001-11-19|2003-05-30|Tocera Eng Co Ltd|Roller support device of roller hearth kiln|
    KR100823588B1|2001-12-22|2008-04-21|주식회사 포스코|Device for changing hearth roll of annealing furnace|
    DE102007004158B3|2007-01-22|2008-07-24|Hans Georg Kupp|Borehole cleaning device, has suction tube extending along longitudinal axis, and brush whose bristles are arranged in suction tube and inserted in openings such that bristles overlap suction tube outward|
    CN201239741Y|2008-08-13|2009-05-20|中国第一重型机械集团公司|Elevation type work roll changing machine|
    EP3048404B1|2015-01-20|2018-04-11|LOI Thermprocess GmbH|Support roller exchange device and method for exchanging support rollers|EP3048404B1|2015-01-20|2018-04-11|LOI Thermprocess GmbH|Support roller exchange device and method for exchanging support rollers|
    CN107677121B|2017-09-15|2020-02-18|中国电子科技集团公司第四十八研究所|Adjustable roller way furnace body|
    US10830536B2|2018-03-15|2020-11-10|Ford Motor Company|Roller transport assembly for transporting rollers to and from a roller hearth furnace|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP15151782.8A|EP3048405A1|2015-01-20|2015-01-20|Support roller exchange device|
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