EP1039022B1 - Pressing arrangement - Google Patents

Pressing arrangement Download PDF

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Publication number
EP1039022B1
EP1039022B1 EP00103923A EP00103923A EP1039022B1 EP 1039022 B1 EP1039022 B1 EP 1039022B1 EP 00103923 A EP00103923 A EP 00103923A EP 00103923 A EP00103923 A EP 00103923A EP 1039022 B1 EP1039022 B1 EP 1039022B1
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EP
European Patent Office
Prior art keywords
bearing
press
roll
rolls
arrangement according
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EP00103923A
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German (de)
French (fr)
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EP1039022A3 (en
EP1039022A2 (en
Inventor
Andreas Meschenmoser
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Voith Patent GmbH
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Voith Paper Patent GmbH
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Publication of EP1039022A2 publication Critical patent/EP1039022A2/en
Publication of EP1039022A3 publication Critical patent/EP1039022A3/en
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof

Definitions

  • the invention relates to a press arrangement for treating a fibrous web, in particular a paper or board web, with at least one press roll disposed on at least one roll end is supported by a movable bearing, which is arranged within the bearing housing Bearing rings in the direction of the roll axis relative to each other displaceable are.
  • a Paper making machine described on at least one roll end are provided with a floating bearing whose within the bearing housing arranged bearing rings in the direction of the roll axis relative to each other are displaceable.
  • the aim of the invention is an improved press arrangement of the above to create said type, in which eliminates the aforementioned disadvantages are.
  • the duration of use of Preßwalzenlager counter-rolls To shoe presses should be increased and be predictable. In particular, it should also be an almost constant, preferably minimal Axialkraft be ensured.
  • the press arrangement forms at least two press rolls at least one press nip, wherein at least one shoe press is provided and at least one of a respective shoe press roll associated counter roll on at least one roll end by a floating bearing is stored, and wherein the housing of the movable bearing fixed to the fray or a pivot lever is connected and the bearings of the Counter roll interacting press rolls with positive connection elements are connected to the bearing housing of the press roll, which allow a shift by changing the length in the rollers.
  • the two bearing rings of the movable bearing also tiltable relative to each other.
  • the press roll in question can thus expand arbitrarily without to a sliding of a bearing outer ring or other guides under Load for the length compensation would be required.
  • the relevant press roll can be used universally as a press module in a wide variety of press concepts be used.
  • the floating bearing function is within the bearing housing Fulfills. For example, an insert for So-called combipresses conceivable. An inclined installation position is problem-free possible. These are new suspension points for the entire press module possible.
  • the respective bearing housings can be fixed directly and be compactly connected with the stiffening. Overall, a result cheaper construction.
  • the bearing housing in question can now be so firmly connected to the chair.
  • the maximum tilt angle for example, be about 0.5 °.
  • Press arrangement are the two bearing rings arranged through therebetween Bearing elements supported on all sides.
  • bearing elements can be provided in particular bearing rollers.
  • a corresponding Floating bearing provided at least on the driver's side.
  • Fig. 1 shows a purely schematic representation of an exemplary embodiment a press arrangement 10 for treating a fibrous web 12, which is in particular a paper or board web can act.
  • the press arrangement comprises four press rolls 14, 16, 18 and 20, through the three in the web running direction L successive press gaps S1, S2 and S3 are formed, through which the fibrous web 12 is passed.
  • the first formed between the first two press rolls 14 and 16 first Pressing gap S1 is double-felted.
  • the fibrous web 12 is between a lower felt 22 and an upper felt 24 through the press nip S1.
  • the second formed between the two central press rolls 16 and 18 Pressing gap S1 is simply felted.
  • the fibrous web 12 is combined guided with the upper felt 24 through this press nip S2.
  • the upper Press roll 20 is formed by a shoe press roll, which is the central Press roll 18 is assigned as a counter roll.
  • the one by this shoe press 18, 20 formed third press nip S3 is simply felted.
  • the shoe press roller 20 associated counter-roller 18 is preferably at the provided on the leader's end of the roll by a pure stored schematically in Fig. 4 illustrated floating bearing 26, whose inside the bearing housing 28 arranged bearing rings 30, 32 in the direction of Roll axis X are relatively displaceable.
  • the two bearing rings 30, 32 the movable bearing 26 also tilted relative to each other.
  • the maximum Tilt angle for example, about 0.5 °.
  • Fig. 4 is the Winkelausschung indicated greatly enlarged.
  • the inner bearing ring 30 is attached to the respective end of the counter-roller 18. It can, for example, on a bearing or shaft journal 34 abut this counter roll 18.
  • the outer bearing ring 32 is on the bearing housing 28 attached.
  • the two bearing rings 30, 32 are in between arranged bearing elements 36 supported on all sides. As bearing elements 36 bearing rollers are provided in the present case.
  • the bearing housing 28 can be fixed to the pertinent paper machine be connected.
  • Fig. 2 shows a purely schematic representation of another possible embodiment a press arrangement in which one in the previously described Way provided with a floating bearing press roll is used.
  • This press arrangement shown in Fig. 2 comprises only three Press rolls 16, 18, 20, are formed by the two press nips S1 and S2.
  • the first press roll 16 is in the present case as Preßsaugwalze executed.
  • the upper press roll 20 is again designed as a shoe press roll, the central roller 18 is assigned as a counter-roller.
  • the two Pressing gaps S1 and S2 are each simply felted, the fibrous web together with an upper felt 24 through the first press nip S1 and together with an upper felt 25 through the second press nip S2 is guided.
  • the shoe press roller 20 associated counter-roller 18 is in the same Way as the counter roll 18 of the press assembly 10 according to FIG. 1 preferably on the driver's side again by a floating bearing 26 in particular stored the type shown in Fig. 4.
  • the respective press rolls 18 can thus at least one side in particular be stored by a so-called CARB bearing, whose inside the bearing housing 28 arranged bearing rings 30, 32 in the direction of Roll axis X relative to each other and preferably also displaceable can be tilted relative to each other (see Fig. 4).
  • CARB bearing whose inside the bearing housing 28 arranged bearing rings 30, 32 in the direction of Roll axis X relative to each other and preferably also displaceable can be tilted relative to each other (see Fig. 4).
  • Figure 3 shows a schematic representation of a press section with three Preßwalzen, wherein two press rolls 20, 20 'at the central press roll 18th are arranged.
  • FIG. 5 shows a more detailed schematic illustration of an embodiment a press arrangement with three press rolls 16, 18 and 20, With reference to the following some advantages of the used for the press rolls Loslagers or CARB bearings are shown.
  • the basic structure of the present, purely exemplary press arrangement corresponds at least essentially that of Figure 1.
  • the through the axes of the two press rolls 18, 20 extending connecting line is denoted by "Y".
  • the Wall thickness of the bearing housing 28 can be made relatively thin.

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Description

Die Erfindung betrifft eine Pressenanordnung zur Behandlung einer Faserstoffbahn, insbesondere einer Papier- oder Kartonbahn, mit wenigstens einer Presswalze, die an zumindest einem Walzenende durch ein Loslager gelagert ist, dessen innerhalb des Lagergehäuses angeordnete Lagerringe in Richtung der Walzenachse relativ zueinander verschiebbar sind.The invention relates to a press arrangement for treating a fibrous web, in particular a paper or board web, with at least one press roll disposed on at least one roll end is supported by a movable bearing, which is arranged within the bearing housing Bearing rings in the direction of the roll axis relative to each other displaceable are.

Bei den bisher üblichen Schuhpressen ist die einer jeweiligen Schuhpreßwalze zugeordnete Gegenwalze auf der Führerseite und auf der Triebseite jeweils durch ein Pendelrollenlager gelagert, wobei die beiden Pendelrollenlager als Festlager eingebaut sind. Die Loslagerfunktion ist außerhalb des Lagergehäuses und des eigentlichen Kraftflusses auf der Führerseite zwischen der Stuhlung und dem Lagergehäuse durch Schiebegleitlager verwirklicht. Dies bringt u.a. den Nachteil mit sich, daß der betreffende Pressenbaustein nicht hinreichend universell einsetzbar ist, was insbesondere für Mehrwalzenpressen gilt. Es sind nämlich stets die beiden einander gegenüberliegenden Schiebegleitlager seitlich am Lagergehäuse erforderlich. Aufgrund des ungünstigen Verhältnisses zwischen dem Abstand der Führungen und der Führungslänge besteht die Gefahr einer Verkantung. Dies gilt auch für die üblichen herkömmlichen Walzenlagerungen mit verschiebbarem Lageraußenring als Loslager, wobei hier das Verschieben unter Preßkraft besonders kritisch ist. In the usual shoe presses that of a respective shoe press roll associated mating roll on the driver's side and on the drive side each supported by a spherical roller bearing, the two spherical roller bearings are installed as a fixed bearing. The floating bearing function is outside the bearing housing and the actual power flow on the leader side between the frame and the bearing housing through slide bearings realized. This brings u.a. the disadvantage that the concerned Press module is not sufficiently universally applicable, which in particular applies to multi-roll presses. They are always the two opposite sliding plain bearing laterally required on the bearing housing. Due to the unfavorable ratio between the distance the guides and the guide length is at risk Canting. This also applies to the usual conventional roller bearings with sliding bearing outer ring as a floating bearing, in which case the Moving under pressing force is particularly critical.

Durch die genannten Nachteile kann eine unkontrollierte axiale Lagerkraft entstehen, welche die Lebensdauer der Walzenlagerung erheblich verkürzt und sich ungünstig auf die Stuhlung auswirkt.Due to the mentioned disadvantages, an uncontrolled axial bearing force arise, which significantly reduces the life of the roller bearing and unfavorable to the stool.

In der DE-U-297 02 570 werden Walzen, einschließlich Presswalzen, einer Paperherstellungsmaschine beschrieben, die an zumindest einem Walzenende mit einem Loslager versehen sind, dessen innerhalb des Lagergehäuses angeordnete Lagerringe in Richtung der Walzenachse relativ zueinander verschiebbar sind.In DE-U-297 02 570 rolls, including press rolls, a Paper making machine described on at least one roll end are provided with a floating bearing whose within the bearing housing arranged bearing rings in the direction of the roll axis relative to each other are displaceable.

Bei einer aus der DE-U-92 04 405 bekannten Pressenanordnung mit einer unten liegenden Langspalt-Presswalze und einer dieser zugeordneten oben liegenden Gegenwalze ist ein jeweiliger Lagerzapfen der Gegenwalze wieder durch ein als Festlager eingebautes Pendelrollenlager gelagert. Das Wälzlager im Lagergehäuse ist also axial nicht verschiebbar. Stattdessen sind das Lagergehäuse und der Sockel wieder relativ zueinander in Achsrichtung beweglich. Es ergeben sich also auch hier wieder die zuvor bereits genannten Nachteile.In one known from DE-U-92 04 405 press arrangement with a underlying extended-nip press roll and one of these associated above lying counter-roller is a respective bearing journal of the counter-roller again stored by a built-in spherical bearing as a fixed bearing. The rolling bearing in the bearing housing is therefore not axially displaceable. Instead are the bearing housing and the socket again relative to each other in the axial direction movable. So, here too, they are already back mentioned disadvantages.

Ziel der Erfindung ist es, eine verbesserte Pressenanordnung der eingangs genannten Art zu schaffen, bei der die zuvor genannten Nachteile beseitigt sind. Die Einsatzdauer der Preßwalzenlager bei Gegenwalzen zu Schuhpressen soll gesteigert werden und berechenbar sein. Es soll insbesondere auch eine nahezu gleichbleibende, vorzugsweise minimale Axialkraft sichergestellt sein.The aim of the invention is an improved press arrangement of the above to create said type, in which eliminates the aforementioned disadvantages are. The duration of use of Preßwalzenlager counter-rolls To shoe presses should be increased and be predictable. In particular, it should also be an almost constant, preferably minimal Axialkraft be ensured.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Pressenanordnung wenigstens zwei Presswalzen zur Bildung wenigstens eines Pressspaltes umfasst, wobei wenigstens eine Schuhpresse vorgesehen ist und wenigstens eine einer jeweiligen Schuhpresswalze zugeordnete Gegenwalze an zumindest einem Walzenende durch ein Loslager gelagert ist, und wobei das Gehäuse des Loslagers fest mit der Stuhlung bzw. einem Schwenkhebel verbunden ist und die Lager von mit der Gegenwalze zusammenwirkenden Presswalzen mit formschlüssigen Verbindungselementen zum Lagergehäuse der Presswalze verbunden sind, welche eine Verschiebung durch Längenänderung in den Walzen zulassen. Vorzugsweise sind die beiden Lagerringe des Loslagers auch relativ zueinander kippbar.This object is achieved according to the invention solved by in that the press arrangement forms at least two press rolls at least one press nip, wherein at least one shoe press is provided and at least one of a respective shoe press roll associated counter roll on at least one roll end by a floating bearing is stored, and wherein the housing of the movable bearing fixed to the fray or a pivot lever is connected and the bearings of the Counter roll interacting press rolls with positive connection elements are connected to the bearing housing of the press roll, which allow a shift by changing the length in the rollers. Preferably, the two bearing rings of the movable bearing also tiltable relative to each other.

Die betreffende Preßwalze kann sich somit beliebig ausdehnen, ohne daß dazu ein Gleiten eines Lageraußenrings oder sonstiger Führungen unter Last für den Längenausgleich erforderlich wäre. Die betreffende Preßwalze kann als Pressenbaustein in den verschiedensten Pressenkonzepten universell eingesetzt werden. Die Loslagerfunktion wird innerhalb des Lagergehäuses erfüllt. So ist beispielsweise ohne weiteres auch ein Einsatz für sogenannte Combipressen denkbar. Eine schräge Einbaulage ist problemlos möglich. Es sind neue Aufhängepunkte für den gesamten Pressenbaustein möglich. Die jeweiligen Lagergehäuse können direkt fest und kompakt mit der Stuhlung verbunden werden. Insgesamt ergibt sich eine kostengünstigere Konstruktion.The press roll in question can thus expand arbitrarily without to a sliding of a bearing outer ring or other guides under Load for the length compensation would be required. The relevant press roll can be used universally as a press module in a wide variety of press concepts be used. The floating bearing function is within the bearing housing Fulfills. For example, an insert for So-called combipresses conceivable. An inclined installation position is problem-free possible. These are new suspension points for the entire press module possible. The respective bearing housings can be fixed directly and be compactly connected with the stiffening. Overall, a result cheaper construction.

Nachdem die Loslagerfunktion innerhalb des Lagergehäuses verwirklicht ist, kann das betreffende Lagergehäuse nunmehr also fest mit der Stuhlung verbunden sein.After the movable bearing function is realized within the bearing housing, the bearing housing in question can now be so firmly connected to the chair.

In dem Preßwalzenlager mit formschlüssigen Verbindungselementen zum Lagergehäuse der Gegenwalze verbunden sind, welche eine Verschiebung durch Längenänderung in den Walzen zulassen, ergibt sich insbesondere eine Biegelelastizität in Maschinenquerrichtung.In the press roll bearing with positive connection elements are connected to the bearing housing of the backing roll, which a displacement allow by length change in the rollers, results in particular a bending elasticity in the cross machine direction.

Für den Fall, daß die beiden Lagerringe des Loslagers relativ zueinander kippbar sind, kann der maximale Kippwinkel beispielsweise etwa 0,5° betragen.In the event that the two bearing rings of the movable bearing relative to each other can be tilted, the maximum tilt angle, for example, be about 0.5 °.

Bei einer bevorzugten praktischen Ausführungsform der erfindungsgemäßen Pressenanordnung sind die beiden Lagerringe durch dazwischen angeordnete Lagerelemente allseitig abgestützt. Als Lagerelemente können insbesondere Lagerrollen vorgesehen sein.In a preferred practical embodiment of the invention Press arrangement are the two bearing rings arranged through therebetween Bearing elements supported on all sides. As bearing elements can be provided in particular bearing rollers.

Vorteilhafterweise ist zumindest auf der Führerseite ein entsprechendes Loslager vorgesehen. Advantageously, at least on the driver's side a corresponding Floating bearing provided.

Die Erfindung wird im folgenden anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung näher erläutert; in dieser zeigen:

Fig. 1
eine schematische Darstellung einer Ausführungsform einer Pressenanordnung mit vier Preßwalzen,
Fig. 2
eine schematische Darstellung einer Ausführungsform einer Pressenanordnung mit drei Preßwalzen,
Figur 3
eine schematische Darstellung einer Pressenpartie mit drei Preßwalzen, wobei zwei Preßwalzen an der zentralen Preßwalze angeordnet sind,
Fig. 4
eine rein schematische Querschnittsdarstellung eines Loslagers und
Figur 5
eine detailliertere schematische Darstellung einer Ausführungsform einer Pressenanordnung mit drei Preßwalzen, aus der sich einige Vorteile des für die Preßwalzen verwendeten Loslagers ergeben.
The invention is explained in more detail below with reference to embodiments with reference to the drawing; in this show:
Fig. 1
a schematic representation of an embodiment of a press arrangement with four press rolls,
Fig. 2
a schematic representation of an embodiment of a press arrangement with three press rolls,
FIG. 3
a schematic representation of a press section with three press rolls, wherein two press rolls are arranged on the central press roll,
Fig. 4
a purely schematic cross-sectional view of a movable bearing and
FIG. 5
a more detailed schematic representation of an embodiment of a press arrangement with three press rolls, resulting in some advantages of the movable bearing used for the press rolls.

Fig. 1 zeigt in rein schematischer Darstellung eine beispielhafte Ausführungsform einer Pressenanordnung 10 zur Behandlung einer Faserstoffbahn 12, bei der es sich insbesondere um eine Papier- oder Kartonbahn handeln kann.Fig. 1 shows a purely schematic representation of an exemplary embodiment a press arrangement 10 for treating a fibrous web 12, which is in particular a paper or board web can act.

Die Pressenanordnung umfaßt vier Preßwalzen 14, 16, 18 und 20, durch die drei in Bahnlaufrichtung L aufeinanderfolgende Preßspalte S1, S2 und S3 gebildet werden, durch die die Faserstoffbahn 12 hindurchgeführt ist.The press arrangement comprises four press rolls 14, 16, 18 and 20, through the three in the web running direction L successive press gaps S1, S2 and S3 are formed, through which the fibrous web 12 is passed.

Der zwischen den ersten beiden Preßwalzen 14 und 16 gebildete erste Preßspalt S1 ist doppelt befilzt. Dabei wird die Faserstoffbahn 12 zwischen einem Unterfilz 22 und einem Oberfilz 24 durch den Preßspalt S1 geführt. Der zwischen den beiden zentralen Preßwalzen 16 und 18 gebildete zweite Preßspalt S1 ist einfach befilzt. Dabei wird die Faserstoffbahn 12 zusammen mit dem Oberfilz 24 durch diesen Preßspalt S2 geführt. Die obere Preßwalze 20 ist durch eine Schuhpreßwalze gebildet, der die zentrale Preßwalze 18 als Gegenwalze zugeordnet ist. Der durch diese Schuhpresse 18, 20 gebildete dritte Preßspalt S3 ist einfach befilzt. Dabei ist die Faserstoffbahn 12 zusammen mit einem Oberfilz 25 durch diesen Preßspalt S3 geführt.The first formed between the first two press rolls 14 and 16 first Pressing gap S1 is double-felted. The fibrous web 12 is between a lower felt 22 and an upper felt 24 through the press nip S1. The second formed between the two central press rolls 16 and 18 Pressing gap S1 is simply felted. In this case, the fibrous web 12 is combined guided with the upper felt 24 through this press nip S2. The upper Press roll 20 is formed by a shoe press roll, which is the central Press roll 18 is assigned as a counter roll. The one by this shoe press 18, 20 formed third press nip S3 is simply felted. Here is the fibrous web 12 together with an upper felt 25 through this press nip S3 guided.

Die der Schuhpreßwalze 20 zugeordnete Gegenwalze 18 ist vorzugsweise an dem auf der Führerseite vorgesehenen Walzenende durch ein rein schematisch in der Fig. 4 dargestelltes Loslager 26 gelagert, dessen innerhalb des Lagergehäuses 28 angeordnete Lagerringe 30, 32 in Richtung der Walzenachse X relativ zueinander verschiebbar sind.The shoe press roller 20 associated counter-roller 18 is preferably at the provided on the leader's end of the roll by a pure stored schematically in Fig. 4 illustrated floating bearing 26, whose inside the bearing housing 28 arranged bearing rings 30, 32 in the direction of Roll axis X are relatively displaceable.

Wie anhand der Fig. 4 zu erkennen ist, sind die beiden Lagerringe 30, 32 des Loslagers 26 überdies relativ zueinander kippbar. Dabei kann der maximale Kippwinkel beispielsweise etwa 0,5° betragen. In der Fig. 4 ist die Winkelauslenkung stark vergrößert angedeutet.As can be seen with reference to FIG. 4, the two bearing rings 30, 32 the movable bearing 26 also tilted relative to each other. Here, the maximum Tilt angle, for example, about 0.5 °. In Fig. 4 is the Winkelauslenkung indicated greatly enlarged.

Der innere Lagerring 30 ist am betreffenden Ende der Gegenwalze 18 angebracht. Er kann beispielsweise an einem Lager- oder Wellenzapfen 34 dieser Gegenwalze 18 anliegen. Der äußere Lagerring 32 ist an dem Lagergehäuse 28 angebracht. Die beiden Lagerringe 30, 32 sind durch dazwischen angeordnete Lagerelemente 36 allseitig abgestützt. Als Lagerelemente 36 sind im vorliegenden Fall Lagerrollen vorgesehen.The inner bearing ring 30 is attached to the respective end of the counter-roller 18. It can, for example, on a bearing or shaft journal 34 abut this counter roll 18. The outer bearing ring 32 is on the bearing housing 28 attached. The two bearing rings 30, 32 are in between arranged bearing elements 36 supported on all sides. As bearing elements 36 bearing rollers are provided in the present case.

Das Lagergehäuse 28 kann fest mit der Stuhlung der betreffenden Papiermaschine verbunden sein.The bearing housing 28 can be fixed to the pertinent paper machine be connected.

Fig. 2 zeigt in rein schematischer Darstellung eine weitere mögliche Ausführungsform einer Pressenanordnung, in der eine in der zuvor beschriebenen Weise mit einem Loslager versehene Preßwalze einsetzbar ist. Diese in der Fig. 2 dargestellte Pressenanordnung umfaßt lediglich drei Preßwalzen 16, 18, 20, durch die zwei Preßspalte S1 und S2 gebildet werden. Die erste Preßwalze 16 ist im vorliegenden Fall als Preßsaugwalze ausgeführt. Die obere Preßwalze 20 ist wieder als Schuhpreßwalze ausgeführt, der die zentrale Walze 18 als Gegenwalze zugeordnet ist. Die beiden Preßspalte S1 und S2 sind jeweils einfach befilzt, wobei die Faserstoffbahn zusammen mit einem Oberfilz 24 durch den ersten Preßspalt S1 und zusammen mit einem Oberfilz 25 durch den zweiten Preßspalt S2 geführt ist.Fig. 2 shows a purely schematic representation of another possible embodiment a press arrangement in which one in the previously described Way provided with a floating bearing press roll is used. This press arrangement shown in Fig. 2 comprises only three Press rolls 16, 18, 20, are formed by the two press nips S1 and S2. The first press roll 16 is in the present case as Preßsaugwalze executed. The upper press roll 20 is again designed as a shoe press roll, the central roller 18 is assigned as a counter-roller. The two Pressing gaps S1 and S2 are each simply felted, the fibrous web together with an upper felt 24 through the first press nip S1 and together with an upper felt 25 through the second press nip S2 is guided.

Die der Schuhpreßwalze 20 zugeordnete Gegenwalze 18 ist in der gleichen Weise wie die Gegenwalze 18 der Pressenanordnung 10 gemäß der Fig. 1 vorzugsweise auf der Führerseite wieder durch ein Loslager 26 insbesondere der in der Fig. 4 dargestellten Art gelagert.The shoe press roller 20 associated counter-roller 18 is in the same Way as the counter roll 18 of the press assembly 10 according to FIG. 1 preferably on the driver's side again by a floating bearing 26 in particular stored the type shown in Fig. 4.

Die betreffenden Preßwalzen 18 können somit zumindest einseitig insbesondere durch ein sogenanntes CARB-Lager gelagert sein, dessen innerhalb des Lagergehäuses 28 angeordnete Lagerringe 30, 32 in Richtung der Walzenachse X relativ zueinander verschiebbar und überdies vorzugsweise relativ zueinander kippbar sind (vgl. Fig. 4).The respective press rolls 18 can thus at least one side in particular be stored by a so-called CARB bearing, whose inside the bearing housing 28 arranged bearing rings 30, 32 in the direction of Roll axis X relative to each other and preferably also displaceable can be tilted relative to each other (see Fig. 4).

Figur 3 zeigt in schematischer Darstellung eine Pressenpartie mit drei Preßwalzen, wobei zwei Preßwalzen 20, 20' an der zentralen Preßwalze 18 angeordnet sind. Hierbei sind die Lager der Preßwalzen 20, 20' mit formschlüssigen Verbindungselementen 38 zum Lagergehäuse der Preßwalze 18 verbunden, welche eine Verschiebung durch Längenänderung in den Walzen 20, 20' zulassen.Figure 3 shows a schematic representation of a press section with three Preßwalzen, wherein two press rolls 20, 20 'at the central press roll 18th are arranged. Here are the bearings of the press rolls 20, 20 'with positive connection elements 38 to the bearing housing of the press roll 18 connected, which is a shift by length change in the rollers 20, 20 'allow.

Figur 5 zeigt eine detailliertere schematische Darstellung einer Ausführungsform einer Pressenanordnung mit drei Preßwalzen 16, 18 und 20, anhand der im folgenden einige Vorteile des für die Preßwalzen verwendeten Loslagers oder CARB-Lager aufgezeigt werden. Der Grundaufbau der vorliegenden, rein beispielhaften Pressenanordnung entspricht zumindest im wesentlichen dem der Figur 1. Die durch die Achsen der beiden Preßwalzen 18, 20 verlaufende Verbindungslinie ist mit "Y" bezeichnet.FIG. 5 shows a more detailed schematic illustration of an embodiment a press arrangement with three press rolls 16, 18 and 20, With reference to the following some advantages of the used for the press rolls Loslagers or CARB bearings are shown. The basic structure of the present, purely exemplary press arrangement corresponds at least essentially that of Figure 1. The through the axes of the two press rolls 18, 20 extending connecting line is denoted by "Y".

Nachdem der äußere Lagerring 32 (vgl. auch Figur 4) im Vergleich zu herkömmlichen Lagern beim CARB-Lager nicht schieben muß, kann die Wandstärke des Lagergehäuses 28 relativ dünn gestaltet werden.After the outer bearing ring 32 (see also Figure 4) compared to conventional Storage at the CARB camp does not have to push, the Wall thickness of the bearing housing 28 can be made relatively thin.

Daraus ergeben sich u.a. die folgenden weiteren Vorteile :

  • 1. Das Lager kann in Bezug auf den maximal vorgegebenen Außendurchmesser des Lagergehäuses 28 größer gestaltet werden, was u.a. eine höhere Belastbarkeit und entsprechend eine höhere Lebensdauer mit sich bringt.
  • 2. Das Lagergehäuse 28 ist aufgrund der dünneren Wandstärke am Umfang elastischer. Somit können durch die Bandagenwirkung mehrere beispielsweise durch Rollen gebildete Lagerelemente 36 die Kraft in Lastrichtung übernehmen. Demgegenüber käme es bei einem herkömmlichen Lager aufgrund der elastischen Verformung zu einer noch größeren Verschiebung des Loslager-Außenringes. Wie sich aus der Figur 5 ergibt, kann durch eine entsprechende Anordnung der Presse bzw. der Auflagepunkte am Lagergehäuse 28 die Kraftverteilung im Lager optimal vorgegeben werden.
  • 3. Der Freiraum für die Zugänglichkeit der Schabereinrichtung 37 ist für einen jeweiligen Klingenwechsel und Spritzrohr-Service sehr wichtig und hier trotz der möglichen größeren Lagerung optimal gestaltbar.
  • 4. Auch der für einen jeweiligen Filzwechsel erforderliche Freiraum zur benachbarten, hier beispielsweise als Saugwalze vorgesehen Walze 16 ist optimal.
    • This results, among other things, in the following additional advantages:
  • 1. The bearing can be made larger in relation to the maximum predetermined outer diameter of the bearing housing 28, which, inter alia, a higher load capacity and correspondingly brings a longer life with it.
  • 2. The bearing housing 28 is elastic due to the thinner wall thickness on the circumference. Thus, a plurality of bearing elements 36 formed, for example, by rollers can take over the force in the load direction due to the banding effect. In contrast, it would be in a conventional bearing due to the elastic deformation to an even larger displacement of the floating bearing outer ring. As can be seen from FIG. 5, the force distribution in the bearing can be optimally predetermined by means of a corresponding arrangement of the press or of the support points on the bearing housing 28.
  • 3. The space for the accessibility of the scraper 37 is very important for a respective blade change and spray tube service and optimally designed here despite the possible larger storage.
  • 4. Also required for a respective Filzwechsel space for adjacent, here provided for example as a suction roller roller 16 is optimal.

    • BezugszeichenlisteLIST OF REFERENCE NUMBERS

    1010
    PressenanordnungPress arrangement
    1212
    FaserstoffbahnFibrous web
    1414
    Preßwalzepress roll
    1616
    Preßwalzepress roll
    1818
    Preßwalze, GegenwalzePress roll, counter roll
    2020
    Preßwalzepress roll
    20'20 '
    Preßwalzepress roll
    2222
    Unterfilzbottom felt
    2424
    Oberfilzoverfelt
    2525
    Oberfilzoverfelt
    2626
    Loslagermovable bearing
    2828
    Lagergehäusebearing housing
    3030
    Lagerringbearing ring
    3232
    Lagerringbearing ring
    3434
    Lager- oder WellenzapfenBearing or shaft journal
    3737
    Schabereinrichtungdoctor means
    3636
    Lagerelementebearing elements
    LL
    BahnlaufrichtungWeb direction
    S1S1
    Preßspaltnip
    S2S2
    Preßspalt nip
    S3S3
    Preßspaltnip
    XX
    Walzenachseroll axis
    YY
    Verbindungslinieconnecting line

    Claims (6)

    1. Press arrangement (10) for treating a fibrous web (12), in particular a paper or board web, having at least one press roll (18) which is mounted at at least one end of the roll by means of a floating bearing (26), whose bearing rings (30, 32) arranged within the bearing housing (28) can be displaced relative to each other in the direction of the roll axis (X),
      characterized in that
      it comprises at least two press rolls (14, 16, 18, 20) for forming at least one press nip (S1, S2, S3), at least one shoe press (18, 20) being provided and at least one backing roll (18) assigned to a respective shoe press roll (20) being mounted at at least one end of the roll by means of a floating bearing (26), and the housing (28) of the floating bearing (26) being firmly connected to the framing or to a pivoting lever, and the bearings of press rolls (20, 20') interacting with the backing roll being connected to the bearing housing of the press roll (18) by form-fitting connecting elements (38), which permit a displacement resulting from a length change in the rolls (20, 20').
    2. Press arrangement according to Claim 1, characterized in that the two bearing rings (30, 32) of the floating bearing (26) can be tilted relative to each other.
    3. Press arrangement according to Claim 2, characterized in that the maximum tilt angle is approximately 0.5°.
    4. Press arrangement according to one of the preceding claims, characterized in that the two bearing rings (30, 32) are supported on all sides by bearing elements (36) arranged between them.
    5. Press arrangement according to Claim 4, characterized in that the bearing elements (36) provided are bearing rollers.
    6. Press arrangement according to one of the preceding claims, characterized in that a floating bearing (26) is provided at least on the operator side.
    EP00103923A 1999-03-19 2000-02-24 Pressing arrangement Revoked EP1039022B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19912495A DE19912495A1 (en) 1999-03-19 1999-03-19 Press arrangement and press roll for such a press arrangement
    DE19912495 1999-03-19

    Publications (3)

    Publication Number Publication Date
    EP1039022A2 EP1039022A2 (en) 2000-09-27
    EP1039022A3 EP1039022A3 (en) 2001-09-19
    EP1039022B1 true EP1039022B1 (en) 2005-04-13

    Family

    ID=7901698

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00103923A Revoked EP1039022B1 (en) 1999-03-19 2000-02-24 Pressing arrangement

    Country Status (3)

    Country Link
    US (1) US6589393B1 (en)
    EP (1) EP1039022B1 (en)
    DE (2) DE19912495A1 (en)

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102005037162A1 (en) * 2005-08-06 2007-02-08 Voith Patent Gmbh The paper machine belt

    Family Cites Families (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE4140879A1 (en) * 1991-12-11 1993-06-17 Voith Gmbh J M PRESS RELEASE
    DE9204405U1 (en) * 1992-04-01 1992-06-11 J.M. Voith Gmbh, 89522 Heidenheim Bearing assembly
    DE4445123A1 (en) * 1994-12-17 1996-06-20 Skf Gmbh Roller bearings for paper drying and polishing cylinders
    DE19609214A1 (en) 1996-03-09 1997-09-11 Voith Sulzer Papiermasch Gmbh Paper making heated drying cylinder
    DE19709369A1 (en) * 1996-03-09 1997-10-30 Voith Sulzer Papiermasch Gmbh Papermaking machine heated roller
    DE19609213A1 (en) * 1996-03-09 1997-09-11 Voith Sulzer Papiermasch Gmbh Machine for making a web
    DE19822145B4 (en) * 1998-05-16 2005-07-14 Voith Paper Patent Gmbh deflection

    Also Published As

    Publication number Publication date
    US6589393B1 (en) 2003-07-08
    EP1039022A3 (en) 2001-09-19
    EP1039022A2 (en) 2000-09-27
    DE19912495A1 (en) 2000-09-21
    DE50010026D1 (en) 2005-05-19

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