EP3393691B1 - Device for descaling a workpiece - Google Patents
Device for descaling a workpiece Download PDFInfo
- Publication number
- EP3393691B1 EP3393691B1 EP16819910.7A EP16819910A EP3393691B1 EP 3393691 B1 EP3393691 B1 EP 3393691B1 EP 16819910 A EP16819910 A EP 16819910A EP 3393691 B1 EP3393691 B1 EP 3393691B1
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- Prior art keywords
- nozzle
- motors
- rotor
- fluid
- workpiece
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- 239000012530 fluid Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000005098 hot rolling Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
Definitions
- the invention relates to a device for descaling a workpiece, preferably a hot rolling stock.
- the apparatus has a plurality of nozzle assemblies, each having a nozzle head with one or more nozzles and a nozzle rotor connected to the nozzle head, wherein the nozzle rotor is adapted to rotatably drive the associated nozzle head.
- a scale scrubber in a hot rolling mill, an assembly called to remove scale, i. about impurities of iron oxide, is provided by the surface of the rolling stock.
- the scale is removed via pressurized water, which is injected from several nozzles onto the rolling stock.
- the DE 43 28 303 A1 describes a scale washer having nozzle rows with a plurality of nozzle heads.
- the nozzle heads are rotatably provided by rotors and are individually rotated by electric motors.
- Such scale scrubbers are also referred to as “rotor scale scrubbers" or “rotor descaling devices”. Further rotor descaling devices go out of the WO 97/27955 A1 and the EP 0 586 823 A2 out.
- the preamble of claim 1 is based on EP 0 586 823 A2 ,
- An object of the invention is to provide an apparatus for descaling a workpiece, preferably a hot rolling stock, with improved reliability and reduced maintenance with excellent descaling results.
- the device according to the invention serves for descaling a workpiece, which is preferably a hot rolling stock.
- the apparatus for descaling a thin steel rolling stock may be arranged from both sides.
- the apparatus may form an assembly in a hot rolling machine.
- the apparatus has a plurality of nozzle assemblies each having a nozzle head with one or more nozzles and a nozzle rotor connected to the nozzle head.
- the nozzle head is preferably fixed in a rotationally fixed manner to the associated nozzle rotor.
- Nozzle head and nozzle red can be designed in several parts or partially or completely in one piece.
- a fluid with pressure preferably pressurized water
- the nozzle rotors preferably have one or more fluid channels, which can be connected to a fluid distributor, which in turn can communicate with a fluid reservoir.
- a fluid distributor which in turn can communicate with a fluid reservoir.
- the apparatus further includes one or more motors provided for rotatably driving the nozzle rotors.
- the number of nozzle arrangements i. the nozzle rotors, larger than the number of motors.
- the plurality of nozzle rotors are connected to the one or more motors via a drive unit.
- nozzle rotors are interconnected via the drive unit, there is an excellent synchronization of the individual nozzle heads, which contributes to an optimal Entzu noteds tenu.
- the reduced number of motors simplifies the technology, which improves reliability and reduces maintenance.
- standard components can be used, such as three-phase motors with simple speed control, which further simplifies the technical structure and further improves the reliability.
- each nozzle rotor preferably has a rotary feedthrough in order to supply the fluid from a fluid distributor to the respective nozzle heads.
- the rotary unions must ensure safe fluid transport into the nozzle heads.
- the rotary unions are designed for a rotational speed of up to 1500 rpm, more preferably 2000 rpm, and a fluid pressure / water pressure of up to 50 to 200 bar, more preferably up to 400 bar.
- the motors are electric motors, thereby providing a quiet and reliable single-speed control drive.
- the drive unit has a plurality of bevel gears, which are connected to a drive shaft, which is rotatably drivable on one or both sides of one or more of the motors.
- each angular gear is in each case connected to a nozzle rotor, so that each nozzle rotor branches off from the drive shaft via exactly one angular gear. Due to the juxtaposition of angular gears, the power of the drive shaft is branched off technically reliable on several nozzle arrangements. If the drive shaft is driven on both sides by one motor each, run Preferably, the motors are synchronized to prevent torsion of the drive shaft and overloading of the motors.
- the drive shaft may have one or more clutches and / or differential gears.
- the drive shaft must therefore not be formed in one piece.
- the nozzle rotors of this embodiment are particularly preferably equipped with angled rotary unions that meet requirements of up to 2000 U / min and 50 to 200 bar.
- the axes of rotation of the nozzle rotors are arranged parallel to one another, the rotor pinions lie in a plane perpendicular to the axes of rotation of the nozzle rotors and perpendicular to a drive axis of the motor or the drive axes of the motors.
- Such a construction is extremely resilient, wear-resistant, dimensionally stable and promises a long service life.
- adjacent nozzle rotors are preferably provided in opposite directions. For this reason, in the above construction, preferably two counter-rotating bevel gears are provided between adjacent rotor pinions.
- the figure shows an embodiment of a device for descaling a workpiece, wherein the device comprises a transmission with angular gears and a drive shaft.
- the figure shows schematically a first embodiment of a device for descaling a workpiece.
- the descaling device is designated by the reference numeral 1 and the workpiece by the reference symbol W.
- the device 1 has a plurality-in the figure by way of example four-nozzle arrangements 10, which are coupled to one another via a drive unit 20. Also connected to the drive unit 20 are two electric motors 30 which provide a torque for driving the nozzle assemblies 10.
- Each nozzle assembly 10 has a nozzle head 11 with one or more nozzles 12 and a nozzle rotor 13 which is fixedly connected to the associated nozzle head 12 on. Via the nozzles 12 pressurized water is sprayed onto the workpiece W, as shown in the figure.
- the nozzles 13 over Lines 16 in the interior of the nozzle head 11 and at least partially in the interior of the associated nozzle rotor 13 with a pressure water manifold (also referred to as fluid manifold) in fluid communication.
- the pressurized water distributor is designated by the reference numeral 40 and has, for example, a plurality of distributor lines 41, which branch off from a main line 42.
- the trunk line 42 may be in fluid communication with a water reservoir, not shown in the figure.
- the pressurized water is introduced from the distribution lines 41 in the lines 16 of the nozzle assemblies 10. From there, the pressurized water enters the nozzle heads 11 and is discharged via the nozzles 12 to the outside on the workpiece W.
- the drive unit 20 has a drive shaft 21 and a plurality of bevel gears 22, the number of which is equal to the number of nozzle arrangements 10.
- the angle gear 22 are connected to the drive shaft 21 and a respective nozzle rotor 13, so that the torque of the drive shaft 21 is transmitted to the individual nozzle rotors 13.
- the nozzle rotors 13 branch off to a certain extent via the angle gear 22 from the drive shaft 21.
- the drive shaft 21 is driven on both sides via a respective motor 30.
- the use of two motors - left and right in the figure - is particularly preferred in the case of a large number of nozzle assemblies 10 connected to the drive shaft 21.
- the torque of a single motor 30 may be transmitted to one or both ends of the drive shaft 21 via a drive unit, not shown. Also in this case there is a double-sided drive. In the case of fewer nozzle arrangements 10 may optionally be dispensed with a two-sided drive.
- a plurality of clutches and / or intermediate gear 23 are provided in the drive shaft 21.
- nozzle rotors 13 are connected to each other via the drive unit 20, there is an excellent synchronization of the individual nozzle heads 11, which contributes to an optimal Entzu notedstex.
- the reduced number of motors 30 simplifies the technique, thereby improving the reliability of the device 1 and reducing maintenance. In many places, standard components can be used, such as motors 30 with simple speed control, which further simplify the technical structure and further improve the reliability.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Entzundern eines Werkstücks, vorzugsweise eines Warmwalzguts. Die Vorrichtung hat mehrere Düsenanordnungen, die jeweils einen Düsenkopf mit einer oder mehreren Düsen und einen mit dem Düsenkopf verbunden Düsenrotor aufweisen, wobei der Düsenrotor zum drehbaren Antreiben des zugehörigen Düsenkopfs eingerichtet ist.The invention relates to a device for descaling a workpiece, preferably a hot rolling stock. The apparatus has a plurality of nozzle assemblies, each having a nozzle head with one or more nozzles and a nozzle rotor connected to the nozzle head, wherein the nozzle rotor is adapted to rotatably drive the associated nozzle head.
Als Zunderwäscher wird bei einer Warmwalzanlage eine Baugruppe bezeichnet, die zur Entfernung von Zunder, d.h. etwa Verunreinigungen aus Eisenoxid, von der Oberfläche des Walzguts vorgesehen ist. Die Entfernung des Zunders erfolgt über Druckwasser, das aus mehreren Düsen auf das Walzgut gespritzt wird.As a scale scrubber, in a hot rolling mill, an assembly called to remove scale, i. about impurities of iron oxide, is provided by the surface of the rolling stock. The scale is removed via pressurized water, which is injected from several nozzles onto the rolling stock.
Die
Für ein optimales Entzunderungsergebnis spielen nicht nur der Spritzdruck, die Ausrichtung und Zerstäubung des Druckwassers eine Rolle, sondern auch die Drehgeschwindigkeit und Synchronisation der Düsenköpfe. Technische Maßnahmen zur Herstellung einer guten und dauerhaften Synchronisation bei individuell angetriebenen Düsenköpfen können aufwändig sein und wirken sich darüber hinaus nachteilig auf die Zuverlässigkeit des Zunderwäschers und den Wartungsaufwand aus.Not only the injection pressure, the alignment and atomization of the pressurized water play a role for an optimal descaling result, but also the rotational speed and synchronization of the nozzle heads. Technical measures to produce a good and permanent synchronization in individually driven Nozzle heads can be expensive and, moreover, adversely affect the reliability of the scale washer and the maintenance effort.
Eine Aufgabe der Erfindung besteht darin, eine Vorrichtung zum Entzundern eines Werkstücks, vorzugsweise eines Warmwalzguts, mit verbesserter Zuverlässigkeit und verringertem Wartungsaufwand bei ausgezeichnetem Entzunderungsergebnis bereitzustellen.An object of the invention is to provide an apparatus for descaling a workpiece, preferably a hot rolling stock, with improved reliability and reduced maintenance with excellent descaling results.
Gelöst wird die Aufgabe mit einer Vorrichtung zum Entzundern eines Werkstücks mit den Merkmalen des Anspruchs 1. Vorteilhafte Weiterbildungen folgen aus den Unteransprüchen, der folgenden Darstellung der Erfindung sowie der Beschreibung bevorzugter Ausführungsbeispiele.The object is achieved with a device for descaling a workpiece with the features of
Die erfindungsgemäße Vorrichtung dient zum Entzundern eines Werkstücks, das vorzugsweise ein Warmwalzgut ist. Beispielsweise kann die Vorrichtung zur Entzunderung eines dünnen Stahlwalzguts von beiden Seiten eingerichtet sein. Die Vorrichtung kann etwa eine Baugruppe in einer Warmwalzmaschine bilden. Die Vorrichtung hat mehrere Düsenanordnungen, die jeweils einen Düsenkopf mit einer oder mehreren Düsen und einen mit dem Düsenkopf verbunden Düsenrotor aufweisen. Der Düsenkopf ist vorzugsweise drehfest an dem zugehörigen Düsenrotor fixiert. Düsenkopf und Düsenroter können dazu mehrteilig oder teilweise oder vollständig einstückig ausgebildet sein. Über die Düsen wird ein Fluid mit Druck, vorzugsweise Druckwasser, auf eine oder mehrere Oberflächen des Werkstücks aufgespritzt, wodurch etwa Verunreinigungen aus Eisenoxid entfernt und weggespült werden. Dazu weisen die Düsenrotoren vorzugsweise ein oder mehrere Fluidkanäle auf, die mit einem Fluidverteiler verbunden sein können, der wiederrum mit einem Fluidreservoir in Verbindung stehen kann. Insbesondere im Fall eines stationären Fluidverteilers kann es erforderlich sein, die Düsenrotoren jeweils mit einer Drehdurchführung auszustatten, durch die das Fluid von außen in die über die Düsenrotoren drehbar gelagerten Düsenköpfe eingebracht wird.The device according to the invention serves for descaling a workpiece, which is preferably a hot rolling stock. For example, the apparatus for descaling a thin steel rolling stock may be arranged from both sides. For example, the apparatus may form an assembly in a hot rolling machine. The apparatus has a plurality of nozzle assemblies each having a nozzle head with one or more nozzles and a nozzle rotor connected to the nozzle head. The nozzle head is preferably fixed in a rotationally fixed manner to the associated nozzle rotor. Nozzle head and nozzle red can be designed in several parts or partially or completely in one piece. Via the nozzles, a fluid with pressure, preferably pressurized water, is sprayed onto one or more surfaces of the workpiece, thereby removing, for example, impurities from iron oxide and being washed away. For this purpose, the nozzle rotors preferably have one or more fluid channels, which can be connected to a fluid distributor, which in turn can communicate with a fluid reservoir. In particular, in the case of a stationary fluid distributor, it may be necessary to equip the nozzle rotors each with a rotary feedthrough through which the fluid is introduced from the outside into the nozzle heads rotatably mounted over the nozzle rotors.
Die Vorrichtung weist ferner ein oder mehrere Motoren auf, die zum drehbaren Antreiben der Düsenrotoren vorgesehen sind. Erfindungsgemäß ist die Anzahl der Düsenanordnungen, d.h. der Düsenrotoren, größer als die Anzahl der Motoren. Ferner sind die mehreren Düsenrotoren über eine Antriebseinheit mit dem einen oder den mehreren Motoren verbunden.The apparatus further includes one or more motors provided for rotatably driving the nozzle rotors. According to the invention, the number of nozzle arrangements, i. the nozzle rotors, larger than the number of motors. Further, the plurality of nozzle rotors are connected to the one or more motors via a drive unit.
Indem die Düsenrotoren über die Antriebseinheit untereinander verbunden sind, erfolgt eine ausgezeichnete Synchronisation der einzelnen Düsenköpfe, was zu einem optimalen Entzunderungsergebnis beiträgt. Die reduzierte Anzahl der Motoren vereinfacht die Technik, wodurch die Zuverlässigkeit verbessert und der Wartungsaufwand verringert werden. An vielerlei Stellen lassen sich Standardkomponenten einsetzen, etwa Drehstrommotoren mit einfacher Drehzahlregelung, wodurch der technische Aufbau weiter vereinfacht und die Zuverlässigkeit weiter verbessert werden.By the nozzle rotors are interconnected via the drive unit, there is an excellent synchronization of the individual nozzle heads, which contributes to an optimal Entzunderungsergebnis. The reduced number of motors simplifies the technology, which improves reliability and reduces maintenance. In many places, standard components can be used, such as three-phase motors with simple speed control, which further simplifies the technical structure and further improves the reliability.
Wie oben bereits angesprochen, hat jeder Düsenrotor vorzugsweise eine Drehdurchführung, um das Fluid von einem Fluidverteiler den jeweiligen Düsenköpfen zuzuführen. Die Drehdurchführungen müssen einen sicheren Fluidtransport in die Düsenköpfe gewährleisten. Vorzugsweise sind die Drehdurchführungen für eine Drehgeschwindigkeit bis zu 1500 U/min, noch bevorzugter 2000 U/min, und einen Fluiddruck/Wasserdruck bis zu 50 bis 200 bar, noch bevorzugter bis 400 bar, ausgelegt.As already mentioned above, each nozzle rotor preferably has a rotary feedthrough in order to supply the fluid from a fluid distributor to the respective nozzle heads. The rotary unions must ensure safe fluid transport into the nozzle heads. Preferably, the rotary unions are designed for a rotational speed of up to 1500 rpm, more preferably 2000 rpm, and a fluid pressure / water pressure of up to 50 to 200 bar, more preferably up to 400 bar.
Vorzugsweise sind die Motoren Elektromotoren, wodurch ein leiser und zuverlässiger Antrieb mit einfacher Drehzahlregelung bereitgestellt wird.Preferably, the motors are electric motors, thereby providing a quiet and reliable single-speed control drive.
Erfindungsgemäß weist die Antriebseinheit mehrere Winkelgetriebe auf, die mit einer Antriebswelle, die einseitig oder beidseitig von einem oder mehreren der Motoren drehantreibbar ist, verbunden sind. Hierbei ist jedes Winkelgetriebe jeweils mit einem Düsenrotor verbunden, so dass jeder Düsenrotor über genau ein Winkelgetriebe von der Antriebswelle abzweigt. Durch die Aneinanderreihung von Winkelgetrieben wird die Kraft der Antriebswelle technisch zuverlässig auf mehre Düsenanordnungen abgezweigt. Wird die Antriebswelle beidseitig von je einem Motor angetrieben, laufen die Motoren vorzugsweise synchron, um eine Torsion der Antriebswelle und ein Überlasten der Motoren zu vermeiden. Alternativ oder zusätzlich kann die Antriebswelle eine oder mehrere Kupplungen und/oder Ausgleichsgetriebe aufweisen. Die Antriebswelle muss somit nicht einstückig ausgebildet sein. Die Düsenrotoren dieser Ausführungsform sind besonders bevorzugt mit gewinkelten Drehdurchführungen ausgestattet, die Anforderungen von bis zu 2000 U/min und 50 bis 200 bar genügen.According to the invention, the drive unit has a plurality of bevel gears, which are connected to a drive shaft, which is rotatably drivable on one or both sides of one or more of the motors. In this case, each angular gear is in each case connected to a nozzle rotor, so that each nozzle rotor branches off from the drive shaft via exactly one angular gear. Due to the juxtaposition of angular gears, the power of the drive shaft is branched off technically reliable on several nozzle arrangements. If the drive shaft is driven on both sides by one motor each, run Preferably, the motors are synchronized to prevent torsion of the drive shaft and overloading of the motors. Alternatively or additionally, the drive shaft may have one or more clutches and / or differential gears. The drive shaft must therefore not be formed in one piece. The nozzle rotors of this embodiment are particularly preferably equipped with angled rotary unions that meet requirements of up to 2000 U / min and 50 to 200 bar.
Besonders bevorzugt sind die Drehachsen der Düsenrotoren parallel zueinander angeordnet, liegen die Rotorritzel in einer Ebene senkrecht zu den Drehachsen der Düsenrotoren und senkrecht zu einer Antriebsachse des Motors bzw. der Antriebsachsen der Motoren. Ein solcher Aufbau ist enorm belastbar, verschleißfest, formbeständig und verspricht eine lange Lebensdauer.Particularly preferably, the axes of rotation of the nozzle rotors are arranged parallel to one another, the rotor pinions lie in a plane perpendicular to the axes of rotation of the nozzle rotors and perpendicular to a drive axis of the motor or the drive axes of the motors. Such a construction is extremely resilient, wear-resistant, dimensionally stable and promises a long service life.
Zur Optimierung des Entzunderungsergebnisses sind benachbarte Düsenrotoren vorzugsweise gegenläufig vorgesehen. Aus diesem Grund sind bei der obigen Bauform vorzugsweise zwei gegenläufig umlenkende Winkelgetriebe zwischen benachbarten Rotorritzeln vorgesehen.To optimize the descaling result, adjacent nozzle rotors are preferably provided in opposite directions. For this reason, in the above construction, preferably two counter-rotating bevel gears are provided between adjacent rotor pinions.
Wenngleich die Erfindung besonders bevorzugt im technischen Umfeld des Warmwalzens zum Einsatz kommt, kann die Erfindung auch in anderen Bereichen umgesetzt werden, beispielsweise allgemein in der Walzindustrie. Weitere Vorteile und Merkmale der vorliegenden Erfindung sind aus der folgenden Beschreibung bevorzugter Ausführungsbeispiele ersichtlich. Die dort beschriebenen Merkmale können alleinstehend oder in Kombination mit einem oder mehreren der oben dargelegten Merkmale umgesetzt werden, insofern sich die Merkmale nicht widersprechen. Die folgende Beschreibung der bevorzugten Ausführungsbeispiele erfolgt dabei unter Bezugnahme auf die begleitenden Zeichnungen.Although the invention is particularly preferably used in the technical environment of hot rolling, the invention can also be implemented in other areas, for example generally in the rolling industry. Further advantages and features of the present invention will be apparent from the following description of preferred embodiments. The features described therein may be implemented alone or in combination with one or more of the features set forth above insofar as the features do not disagree. The following description of the preferred embodiments is made with reference to the accompanying drawings.
Die Figur zeigt ein Ausführungsbeispiel einer Vorrichtung zum Entzundern eines Werkstücks, wobei die Vorrichtung ein Getriebe mit Winkelgetrieben und einer Antriebswelle aufweist.The figure shows an embodiment of a device for descaling a workpiece, wherein the device comprises a transmission with angular gears and a drive shaft.
Im Folgenden wird das bevorzugte Ausführungsbeispiel anhand der Figur beschrieben. Dabei sind gleiche, ähnliche oder gleichwirkende Elemente in den Figuren mit identischen Bezugszeichen versehen, und auf eine wiederholende Beschreibung dieser Elemente wird teilweise verzichtet, um Redundanzen zu vermeiden.In the following, the preferred embodiment will be described with reference to FIG. In this case, identical, similar or equivalent elements in the figures are provided with identical reference numerals, and a repetitive description of these elements is partially omitted in order to avoid redundancies.
Die Figur zeigt schematisch ein erstes Ausführungsbeispiel einer Vorrichtung zum Entzundern eines Werkstücks. Die Entzunderungsvorrichtung ist mit dem Bezugszeichen 1 und das Werkstück mit dem Bezugszeichen W bezeichnet.The figure shows schematically a first embodiment of a device for descaling a workpiece. The descaling device is designated by the
Die Vorrichtung 1 weist mehrere - in der Figur beispielhaft vier - Düsenanordnungen 10 auf, die über eine Antriebseinheit 20 miteinander gekoppelt sind. Ebenfalls an die Antriebseinheit 20 angeschlossen sind zwei Elektromotoren 30, welche ein Drehmoment zum Antreiben der Düsenanordnungen 10 bereitstellen.The
Jede Düsenanordnung 10 weist einen Düsenkopf 11 mit einer oder mehreren Düsen 12 und einen Düsenrotor 13, der mit dem zugehörigen Düsenkopf 12 fest verbunden ist, auf. Über die Düsen 12 wird Druckwasser auf das Werkstück W aufgespritzt, wie es in der Figur gezeigt ist. Dazu stehen die Düsen 13 über Leitungen 16 im Inneren des Düsenkopfs 11 und wenigstens teilweise im Inneren des zugehörigen Düsenrotors 13 mit einem Druckwasserverteiler (auch als Fluidverteiler bezeichnet) in Fluidverbindung. Der Druckwasserverteiler ist mit dem Bezugszeichen 40 bezeichnet und weist beispielsweise mehrere Verteilerleitungen 41 auf, die von einer Stammleitung 42 abzweigen. Die Stammleitung 42 kann mit einem Wasserreservoir, das in der Figur nicht dargestellt ist, in Fluidverbindung stehen. Über (gewinkelte) Drehdurchführungen 14, die Teil der Düsenrotoren 13 sind, wird das Druckwasser von den Verteilerleitungen 41 in die Leitungen 16 der Düsenanordnungen 10 eingebracht. Von dort aus gelangt das Druckwasser in die Düsenköpfe 11 und wird über die Düsen 12 nach außen auf das Werkstück W abgegeben.Each
Die Antriebseinheit 20 weist eine Antriebswelle 21 und mehrere Winkelgetriebe 22 auf, deren Anzahl gleich der Anzahl der Düsenanordnungen 10 ist. Die Winkelgetriebe 22 sind mit der Antriebswelle 21 und jeweils einem Düsenrotor 13 verbunden, sodass das Drehmoment der Antriebswelle 21 auf die einzelnen Düsenrotoren 13 übertragen wird. Die Düsenrotoren 13 zweigen gewissermaßen über die Winkelgetriebe 22 von der Antriebswelle 21 ab. Um eine zuverlässige Kraftübertragung auf alle Düsenrotoren 13 zu gewährleisten wird die Antriebswelle 21 beidseitig über je einen Motor 30 angetrieben. Die Verwendung von zwei Motoren - in der Figur links und rechts - ist besonders im Fall einer großen Anzahl von mit der Antriebswelle 21 verbundenen Düsenanordnungen 10 bevorzugt. Alternativ kann das Drehmoment eines einzigen Motors 30 über eine nicht dargestellte Antriebseinheit an eines oder an beide Enden der Antriebswelle 21 übertragen werden. Auch in diesem Fall liegt ein beidseitiger Antrieb vor. Im Fall weniger Düsenanordnungen 10 kann gegebenenfalls auf einen beidseitigen Antrieb verzichtet werden. Zur Synchronisation des Antriebs und Vermeidung von Torsion der Antriebswelle 21, gegebenenfalls auch zum individuellen Abschalten von Düsenanordnungen 10, sind in der Antriebswelle 21 mehrere Kupplungen und/oder Zwischengetriebe 23 vorgesehen.The
Indem die Düsenrotoren 13 über die Antriebseinheit 20 miteinander verbunden sind, erfolgt eine ausgezeichnete Synchronisation der einzelnen Düsenköpfe 11, was zu einem optimalen Entzunderungsergebnis beiträgt. Die reduzierte Anzahl der Motoren 30 vereinfacht die Technik, wodurch die Zuverlässigkeit der Vorrichtung 1 verbessert und der Wartungsaufwand verringert werden. An vielerlei Stellen lassen sich Standardkomponenten einsetzen, etwa Motoren 30 mit einfacher Drehzahlregelung, wodurch sich der technische Aufbau weiter vereinfachen und die Zuverlässigkeit weiter verbessern lassen.By the nozzle rotors 13 are connected to each other via the
Soweit anwendbar, können alle einzelnen Merkmale, die in dem Ausführungsbeispiel dargestellt sind, miteinander kombiniert und/oder ausgetauscht werden, ohne den Bereich der Erfindung zu verlassen.Where applicable, all individual features illustrated in the embodiment may be combined and / or interchanged without departing from the scope of the invention.
- 11
- Vorrichtung zur Entzunderung eines WerkstücksDevice for descaling a workpiece
- 1010
- Düsenanordnungnozzle assembly
- 1111
- Düsenkopfnozzle head
- 1212
- Düsejet
- 1313
- Düsenrotornozzle rotor
- 1414
- gewinkelte Drehdurchführungangled rotary union
- 1616
- Leitungmanagement
- 2020
- Antriebseinheitdrive unit
- 2121
- Antriebswelledrive shaft
- 2222
- Winkelgetriebeangle gear
- 2323
- Kupplung/ZwischengetriebeCoupling / intermediate gear
- 3030
- Motorengine
- 3131
- Motorwellemotor shaft
- 4040
- Fluidverteilerfluid distributor
- 4141
- Verteilerleitungdistribution line
- 4242
- Stammleitungmaster cable
- WW
- Werkstückworkpiece
Claims (8)
- Device (1) for descaling a workpiece (W), preferably hot-rolled material, with a plurality of nozzle arrangements (10), which each comprise a nozzle head (11) with one or more nozzles (12) and a nozzle rotor (13) connected with the nozzle head (11), and one or more motors (30), wherein
each nozzle head (11) is arranged to spray a fluid from the nozzles (12) onto the surface of the workpiece (W) and to be rotatable by way of the associated nozzle rotor (13) and
the number of nozzle arrangements (10) is greater than the number of motors (30) and the plurality of nozzle rotors (13) is connected by way of a drive unit (20) with the one or more motors (30),
characterised in that
the drive unit (20) comprises a plurality of angle transmissions (22) connected with a drive shaft (21), which is rotationally driveable at one end or both ends by one or more of the motors (30), and each angle transmission (22) is connected with a respective nozzle rotor (13) so that each nozzle rotor (13) branches off from the drive shaft (21) by way of exactly one angle transmission (22). - Device (1) according to claim 1, characterised in that each nozzle rotor (13) has a rotary feedthrough (14, 15) so as to feed the fluid from a fluid distributor (40) to the respective nozzle heads (11).
- Device (1) according to claim 1 or 2, characterised in that the motors (30) are electric motors.
- Device (1) according to any one of the preceding claims, characterised in that the fluid is under pressure, preferably is pressurised water.
- Device (1) according to any one of the preceding claims, characterised in that the drive unit (20) is adjustable in height and is adjustable in height in common with the nozzle arrangements (10).
- Device (1) according to any one of the preceding claims, characterised in that adjacent nozzle rotors (13) run in opposite sense.
- Device (1) according to any one of the preceding claims, characterised in that exactly one motor (30) is provided.
- Hot-rolling machine with a device (1) according to any one of the preceding claims.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015226658.3A DE102015226658A1 (en) | 2015-12-23 | 2015-12-23 | Device for descaling a workpiece |
| PCT/EP2016/082138 WO2017108926A1 (en) | 2015-12-23 | 2016-12-21 | Device for descaling a workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3393691A1 EP3393691A1 (en) | 2018-10-31 |
| EP3393691B1 true EP3393691B1 (en) | 2019-08-14 |
Family
ID=57681587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16819910.7A Active EP3393691B1 (en) | 2015-12-23 | 2016-12-21 | Device for descaling a workpiece |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3393691B1 (en) |
| DE (1) | DE102015226658A1 (en) |
| WO (1) | WO2017108926A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580566A (en) * | 2017-12-29 | 2018-09-28 | 南京钢铁股份有限公司 | A kind of method that high pressure descaling rinses collector and nozzle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4937007B1 (en) * | 1968-08-28 | 1974-10-04 | ||
| ATE158729T1 (en) * | 1992-07-31 | 1997-10-15 | Danieli Off Mecc | DESCALE DEVICE USING WATER |
| DE4328303C2 (en) | 1992-12-23 | 1997-02-13 | Juergen Gaydoul | Device for descaling hot rolled material |
| AT406234B (en) | 1996-02-02 | 2000-03-27 | Voest Alpine Ind Anlagen | METHOD FOR DESCALING A WORKPIECE |
-
2015
- 2015-12-23 DE DE102015226658.3A patent/DE102015226658A1/en not_active Withdrawn
-
2016
- 2016-12-21 EP EP16819910.7A patent/EP3393691B1/en active Active
- 2016-12-21 WO PCT/EP2016/082138 patent/WO2017108926A1/en active Search and Examination
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017108926A1 (en) | 2017-06-29 |
| DE102015226658A1 (en) | 2017-06-29 |
| EP3393691A1 (en) | 2018-10-31 |
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