EP1953295A1 - Press device - Google Patents

Press device Download PDF

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Publication number
EP1953295A1
EP1953295A1 EP07122723A EP07122723A EP1953295A1 EP 1953295 A1 EP1953295 A1 EP 1953295A1 EP 07122723 A EP07122723 A EP 07122723A EP 07122723 A EP07122723 A EP 07122723A EP 1953295 A1 EP1953295 A1 EP 1953295A1
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EP
European Patent Office
Prior art keywords
press
tension rods
arrangement according
roll
press arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07122723A
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German (de)
French (fr)
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EP1953295B1 (en
Inventor
Joachim Dr. Grabscheid
Frank Schmidt
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Voith Patent GmbH
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Voith Patent GmbH
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Publication date
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Priority to PL07122723T priority Critical patent/PL1953295T3/en
Publication of EP1953295A1 publication Critical patent/EP1953295A1/en
Application granted granted Critical
Publication of EP1953295B1 publication Critical patent/EP1953295B1/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
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/006—Calenders; Smoothing apparatus with extended nips
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0226—Bearings

Definitions

  • the invention relates to a pressing arrangement for dewatering or smoothing a paper, cardboard, tissue or other fibrous web in a machine for producing and / or finishing the same with at least one, formed by a pressing and a counter-roller press nip, whose axes at least a roll end are mounted in separate support parts, wherein the press roll has a rotating roll shell which is pressed via a contact element to the counter roll, the opposite support parts of at least one roll end detachably connected to each other via at least one tie rod and the tie rods are at least hinged to a support member.
  • tension rods are from the non-prepublished DE 10 2005 040 722.6 known.
  • the load of the tension rods is greatly reduced by skewing of the rollers due to rolling deflection and thermal change in length over the articulated mounting of the tension rods.
  • tension rods that these previously, such as in the EP 0 531 491 described, must be clamped on preload cylinder. This is necessary so that they are already in the correct position when applying the pressing load, ie do not sit askew and thereby be overloaded.
  • the object of the invention is to simplify the connection of the support parts.
  • the object has been achieved in that the tension rods have at least one end of a joint head, which is mounted on a parallel to the roll axis, fixed to the support member, conical bolt.
  • the bolts taper to the end, which is guided by the conical bore of the joint head.
  • the insertion of the bolt leads because of the increasing Diameter to a bias of the connection and yet allows the pivoting of the tension rods.
  • tools for inserting and / or pulling out the conical bolts are present on the corresponding support part.
  • These tools can be designed as screws, hydraulic, pneumatic or electric cylinder.
  • the tension rods Due to the articulated mounting of the tension rods thermal changes in length of the rollers or their axes can be recorded as well as inclinations of the axes due to roll deflection. To minimize the load on the tension rods, in particular with regard to bending stress, the tension rods should therefore be articulated at both ends.
  • both ends of the tension rods should also have a condyle mounted on a conical bolt.
  • the support parts of one end of the roll should be connected to one another via a plurality of preferably two tension rods, at least one tension rod being present on both sides of the press plane.
  • the tie rods should be parallel to the press plane.
  • the tension rods are inclined to the press plane. This is especially true when the support part of the press roll is smaller than the support part of the counter roll. In this case, the tension rods should be inclined in the direction of the press roller to the press plane.
  • the tension rods should be at least partially arranged in recesses of the support parts.
  • the dismantling of the tension rods can be substantially simplified if at least one, preferably the lower support part has a slope which extends only inclined in the axial direction and is suitable for receiving the, detached from this support part end of the tension rod.
  • At least one, preferably the upper support part identifies one or more recesses into which the corresponding tension rod can be moved during removal.
  • the tension rods if they are made of steel, can certainly have a weight of 20 kg and more, it is advantageous if at least one support part retaining means for fixing, in particular hooking the tension rod are available.
  • the tension bars consist of light metal and / or a fiber-reinforced plastic, at least on the driver's side. This allows the assembly and disassembly of only one person.
  • the press arrangement has a press nip for dewatering or smoothing a fibrous web, in particular a paper web in a paper machine, which is formed by an overhead press roll 1 and a lower counter roll 3.
  • the axes of the rollers are 1.3 stored in separate support parts 2,4. While the axis of the counter roll 3 rotates with this, the axis of the press roll 1 is fixed.
  • the axis and the bearing and the support part 2 of the press roller 1 can be made smaller than those of the counter roller 3.
  • the press roll 1 has a rotating roll shell, which is pressed by a, on the axis supporting, stationary contact pressure element 12 to the counter roll 3.
  • the pressing element 12 While in the case of dimensionally stable roll shells, the pressing element 12, as shown here, has a convex pressing surface, this may be concave with a flexible roll sheath to form an extended press nip.
  • Prolonged press gaps allow an intensive yet volume-saving treatment of the fibrous web due to the longer residence time.
  • the support members 2,4 are leader side via two connecting elements in the form of a pull rod 7 releasably connected together. In this case, there is a tension rod 7 on each side of the press plane 5 extending through the roller axes.
  • tension rods 7 are articulated in two support parts 2.4. These pivot bearings 6 free the tension rods 7 of bending stresses, caused by rolling deflections and thermal length changes.
  • the tension rods 7 at both ends have rod ends in the form of an eyelet, which are mounted on parallel to the roller axis, fixed to the support part 2.4, conical pin 8,9.
  • Tools can be used to facilitate assembly and disassembly.
  • a tool in the form of a carried by a holder 14 screw 13, which is coupled to the corresponding bolt 8.9.
  • the holder 14 can be executed wegschwenkbar.
  • the press roll 1 has a smaller diameter than the counter roll 3.
  • the support part 2 of the press roll 1 is smaller than the roll shell, so that it can be easily pushed over the support member 2 in a necessary change after loosening the connection.
  • the rod ends at the ends of the tension rods 7 are located in recesses 15 of the support parts 2,4. To remove the tension rods 7, the bolts are pulled 8.9 and the tension rods 7, as in FIG. 1b shown, pushed up into a recess 10 of the upper support part 2. Thereafter, the tension rods 7 are inclined forward and removed via a slope 11 at the lower support part 4 of the backing roll 3.
  • Holding means are used. About this holding means of the pull rod 7 after the release of the connection, ie the pulling of the bolts 8,9 or before the connection, ie the insertion of the bolts are held 8.9.
  • a holding means in particular, a holder 16 attached to the support part 2.4, to which a hook 17 of the pull rod 7 o. ⁇ . Can be hung.
  • leader side pull rods 7 made of light metal or a fiber-reinforced plastic can be produced.

Abstract

The arrangement has a pressing roller (1) and an impression roller (3) forming a press gap. Axles of the impression roller are supported at a roller end in opposite supporting parts (2, 4). A rotary roll shell is pressed at the impression roller by a pressing element (12). The parts are detachably connected together via a tension rod (7), where the rod is hingedly supported at the parts. A swivel head is provided at an end of the rod, and is supported on conical bolts (8, 9) that are fixed at the parts and run parallel to the axles. The rod is made of light alloy or a fiber-reinforced plastic.

Description

Die Erfindung betrifft eine Pressanordnung zur Entwässerung oder Glättung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn in einer Maschine zur Herstellung und/oder Veredlung derselben mit wenigstens einem, von einer Press- und einer Gegenwalze gebildeten Pressspalt, deren Achsen zumindest an einem Walzenende in separaten Supportteilen gelagert sind, wobei die Presswalze einen rotierenden Walzenmantel besitzt, der über ein Anpresselement zur Gegenwalze gedrückt wird, die gegenüberliegenden Supportteile wenigstens eines Walzenendes über zumindest einen Zugstab lösbar miteinander verbunden und die Zugstäbe zumindest an einem Supportteil gelenkig gelagert sind.The invention relates to a pressing arrangement for dewatering or smoothing a paper, cardboard, tissue or other fibrous web in a machine for producing and / or finishing the same with at least one, formed by a pressing and a counter-roller press nip, whose axes at least a roll end are mounted in separate support parts, wherein the press roll has a rotating roll shell which is pressed via a contact element to the counter roll, the opposite support parts of at least one roll end detachably connected to each other via at least one tie rod and the tie rods are at least hinged to a support member.

Derartige Zugstäbe sind aus der nicht-vorveröffentlichten DE 10 2005 040 722.6 bekannt. Dabei wird die Belastung der Zugstäbe durch Schiefstellungen der Walzen infolge von Walzendurchbiegung und thermischer Längenänderung über die gelenkige Lagerung der Zugstäbe wesentlich reduziert.Such tension rods are from the non-prepublished DE 10 2005 040 722.6 known. The load of the tension rods is greatly reduced by skewing of the rollers due to rolling deflection and thermal change in length over the articulated mounting of the tension rods.

Nachteilig ist bei der Verwendung von Zugstäben, dass diese bisher, wie beispielsweise in der EP 0 531 491 beschrieben, über Vorspannzylinder gespannt werden müssen. Dies ist notwendig, damit diese beim Aufbringen der Presslast bereits in der richtigen Position sind, d.h. nicht etwa schief sitzen und dadurch überlastetet werden.A disadvantage of the use of tension rods, that these previously, such as in the EP 0 531 491 described, must be clamped on preload cylinder. This is necessary so that they are already in the correct position when applying the pressing load, ie do not sit askew and thereby be overloaded.

Die Aufgabe der Erfindung ist es die Verbindung der Supportteile zu vereinfachen.The object of the invention is to simplify the connection of the support parts.

Erfindungsgemäß wurde die Aufgabe dadurch gelöst, dass die Zugstäbe an wenigstens einem Ende einen Gelenkkopf besitzen, der auf einem parallel zur Walzenachse verlaufenden, am Supportteil fixierten, konischen Bolzen gelagert ist.According to the invention the object has been achieved in that the tension rods have at least one end of a joint head, which is mounted on a parallel to the roll axis, fixed to the support member, conical bolt.

Die Bolzen verjüngen sich zu dem Ende, welches durch die konische Bohrung des Gelenkkopfes geführt wird. Das Einführen der Bolzen führt wegen des zunehmenden Durchmessers zu einer Vorspannung der Verbindung und erlaubt aber dennoch das Verschwenken der Zugstäbe.The bolts taper to the end, which is guided by the conical bore of the joint head. The insertion of the bolt leads because of the increasing Diameter to a bias of the connection and yet allows the pivoting of the tension rods.

Außerdem wird ein spielfreier Sitz gewährleistet, was eine optimale Kraftübertragung sicherstellt.In addition, a play-free seat is guaranteed, which ensures optimum power transmission.

Im Ergebnis kann auf Spannelemente verzichtet werden, was den Aufwand erheblich reduziert.As a result, can be dispensed with clamping elements, which significantly reduces the effort.

Um die Bolzen leichter handhaben zu können, ist es vorteilhaft, wenn am entsprechenden Supportteil Hilfsmittel zum Einführen und/oder Herausziehen der konischen Bolzen vorhanden sind. Diese Hilfsmittel können als Schrauben, Hydraulik-, Pneumatik- oder Elektrozylinder ausgeführt sein.In order to handle the bolts easier, it is advantageous if tools for inserting and / or pulling out the conical bolts are present on the corresponding support part. These tools can be designed as screws, hydraulic, pneumatic or electric cylinder.

Durch die gelenkige Lagerung der Zugstäbe können thermische Längenänderungen der Walzen bzw. ihrer Achsen genauso aufgenommen werden wie Schrägstellungen der Achsen infolge Walzendurchbiegung. Zur Minimierung der Belastung der Zugstäbe, insbesondere hinsichtlich Biegespannung sollten die Zugstäbe daher an beiden Enden gelenkig gelagert sein.Due to the articulated mounting of the tension rods thermal changes in length of the rollers or their axes can be recorded as well as inclinations of the axes due to roll deflection. To minimize the load on the tension rods, in particular with regard to bending stress, the tension rods should therefore be articulated at both ends.

Hinsichtlich eines optimalen Kraftflusses und der umfassenden Nutzung der Vorteile sollten auch beide Enden der Zugstäbe einen, jeweils auf einen konischen Bolzen gelagerten Gelenkkopf besitzen.With regard to an optimal power flow and the comprehensive use of the advantages, both ends of the tension rods should also have a condyle mounted on a conical bolt.

Zur Realisierung einer stabilen Verbindung zwischen den Supportteilen sollten die Supporteile eines Walzenendes über mehrere, vorzugsweise zwei Zugstäbe miteinander verbunden werden, wobei auf beiden Seiten der Pressebene wenigstens ein Zugstab vorhanden ist.In order to realize a stable connection between the support parts, the support parts of one end of the roll should be connected to one another via a plurality of preferably two tension rods, at least one tension rod being present on both sides of the press plane.

Insbesondere bei großen und/oder etwa gleichgroßen Supportteilen sollten die Zugstäbe parallel zur Pressebene verlaufen.Especially with large and / or about the same size support parts, the tie rods should be parallel to the press plane.

Es kann aber auch von Vorteil sein, wenn die Zugstäbe zur Pressebene geneigt verlaufen. Dies gilt insbesondere dann, wenn das Supportteil der Presswalze kleiner als das Supportteil der Gegenwalze ist. In diesem Fall sollten die Zugstäbe in Richtung der Presswalze zur Pressebene geneigt verlaufen.But it may also be advantageous if the tension rods are inclined to the press plane. This is especially true when the support part of the press roll is smaller than the support part of the counter roll. In this case, the tension rods should be inclined in the direction of the press roller to the press plane.

Um die Verbindung möglichst raumsparend und unter Ausnutzung der Supportteile zu ermöglichen, sollten die Zugstäbe wenigstens teilweise in Aussparungen der Supportteile angeordnet sein.To allow the connection as space-saving as possible and taking advantage of the support parts, the tension rods should be at least partially arranged in recesses of the support parts.

Dabei ist es insbesondere von Vorteil, wenn zumindest die Gelenkköpfe in Aussparungen der Supportteile angeordnet sind.It is particularly advantageous if at least the rod ends are arranged in recesses of the support parts.

Die Demontage der Zugstäbe kann wesentlich vereinfacht werden, wenn zumindest ein, vorzugsweise das untere Supportteil eine Schräge aufweist, welche nur in axialer Richtung geneigt verläuft und zur Aufnahme des, von diesem Supportteil gelösten Endes des Zugstabes geeignet ist.The dismantling of the tension rods can be substantially simplified if at least one, preferably the lower support part has a slope which extends only inclined in the axial direction and is suitable for receiving the, detached from this support part end of the tension rod.

Dabei kann es auch von Vorteil sein, wenn zumindest ein, vorzugsweise das obere Supportteil eine oder mehrere Aussparungen ausweist, in die der entsprechende Zugstab beim Ausbau hinein bewegt werden kann.It may also be advantageous if at least one, preferably the upper support part identifies one or more recesses into which the corresponding tension rod can be moved during removal.

Da die Zugstäbe, sofern sie aus Stahl bestehen, durchaus ein Gewicht von 20 kg und mehr aufweisen können, ist es vorteilhaft, wenn an wenigsten einem Supportteil Haltemittel zum Fixieren, insbesondere Einhängen des Zugstabs vorhanden sind.Since the tension rods, if they are made of steel, can certainly have a weight of 20 kg and more, it is advantageous if at least one support part retaining means for fixing, in particular hooking the tension rod are available.

Zur Gewichtsreduzierung ist es unter Beibehaltung der Belastbarkeit von Vorteil, wenn die Zugstäbe zumindest an der Führerseite aus Leichtmetall und/oder einem faserverstärkten Kunststoff bestehen. Dies erlaubt die Montage und Demontage von nur einer Person.To reduce weight, it is advantageous while maintaining the load capacity, if the tension bars consist of light metal and / or a fiber-reinforced plastic, at least on the driver's side. This allows the assembly and disassembly of only one person.

Nachfolgend soll die Erfindung an mehreren Ausführungsbeispielen näher erläutert werden. In der beigefügten Zeichnung zeigt:

Figur 1a:
eine schematische Seitenansicht der Supportverbindung;
Figur 1b:
einen schematischen Querschnitt durch eine Supportverbindung;
Figur 2a:
die Supportverbindung gemäß Figur 1a mit Hilfs- und Haltemittel;
Figur 2b:
die Supportverbindung gemäß Figur 1b mit Hilfs- und Haltemittel;
Figur 3a:
die Supportverbindung gemäß Figur 2a mit einem anderen Hilfsmittel und
Figur 3b:
die Supportverbindung gemäß Figur 2b mit einem anderen Hilfsmittel.
The invention will be explained in more detail below with reference to several exemplary embodiments. In the attached drawing shows:
FIG. 1a
a schematic side view of the support connection;
FIG. 1b
a schematic cross section through a support connection;
FIG. 2a:
the support connection according to FIG. 1a with auxiliary and holding means;
FIG. 2b:
the support connection according to FIG. 1b with auxiliary and holding means;
FIG. 3a:
the support connection according to FIG. 2a with another resource and
FIG. 3b:
the support connection according to FIG. 2b with another tool.

Bei allen Ausführungen hat die Pressanordnung einen Pressspalt zur Entwässerung oder Glättung einer Faserstoffbahn, insbesondere einer Papierbahn in einer Papiermaschine, der von einer oben liegenden Presswalze 1 und einer unteren Gegenwalze 3 gebildet wird.In all embodiments, the press arrangement has a press nip for dewatering or smoothing a fibrous web, in particular a paper web in a paper machine, which is formed by an overhead press roll 1 and a lower counter roll 3.

Dabei sind die Achsen der Walzen 1,3 in separaten Supportteilen 2,4 gelagert. Während die Achse der Gegenwalze 3 mit dieser mitrotiert, ist die Achse der Presswalze 1 feststehend.The axes of the rollers are 1.3 stored in separate support parts 2,4. While the axis of the counter roll 3 rotates with this, the axis of the press roll 1 is fixed.

Daher können Achse und Lagerung sowie Supportteil 2 der Presswalze 1 kleiner als bei der Gegenwalze 3 ausgeführt werden.Therefore, the axis and the bearing and the support part 2 of the press roller 1 can be made smaller than those of the counter roller 3.

Die Presswalze 1 hat einen rotierenden Walzenmantel, der von einem, sich auf der Achse abstützenden, stationären Anpresselement 12 zur Gegenwalze 3 gedrückt wird.The press roll 1 has a rotating roll shell, which is pressed by a, on the axis supporting, stationary contact pressure element 12 to the counter roll 3.

Während bei formstabilen Walzenmänteln das Anpresselement 12 , wie hier dargestellt, eine konvexe Pressfläche ausweist, kann diese bei flexiblem Walzenmantel zur Bildung eines verlängerte Pressspaltes konkav sein.While in the case of dimensionally stable roll shells, the pressing element 12, as shown here, has a convex pressing surface, this may be concave with a flexible roll sheath to form an extended press nip.

Verlängerte Pressspalte erlauben wegen der längeren Verweilzeit eine intensive und dennoch volumenschonende Behandlung der Faserstoffbahn.Prolonged press gaps allow an intensive yet volume-saving treatment of the fibrous web due to the longer residence time.

Die Supportteile 2,4 sind führerseitig über zwei Verbindungselemente jeweils in Form eines Zugstabes 7 lösbar miteinander verbunden. Dabei befindet sich beidseitig der, durch die Walzenachsen verlaufenden Pressebene 5 je ein Zugstab 7.The support members 2,4 are leader side via two connecting elements in the form of a pull rod 7 releasably connected together. In this case, there is a tension rod 7 on each side of the press plane 5 extending through the roller axes.

Wesentlich ist dabei, dass die Zugstäbe 7 in beiden Supportteilen 2,4 gelenkig gelagert sind. Diese Gelenklager 6 befreien die Zugstäbe 7 von Biegespannungen, verursacht von Walzendurchbiegungen und thermischen Längenänderungen.It is essential that the tension rods 7 are articulated in two support parts 2.4. These pivot bearings 6 free the tension rods 7 of bending stresses, caused by rolling deflections and thermal length changes.

Dies wiederum erlaubt es, die Zugstäbe 7 in ihren Abmessungen zu vermindern und/oder deren Belastbarkeit hinsichtlich Zugspannungen zu erhöhen.This in turn makes it possible to reduce the tension rods 7 in their dimensions and / or to increase their capacity with respect to tensile stresses.

Hierzu besitzen die Zugstäbe 7 an beiden Enden Gelenkköpfe in Form einer Öse, die auf parallel zur Walzenachse verlaufenden, am Supportteil 2,4 fixierten, konischen Bolzen 8,9 gelagert sind.For this purpose, the tension rods 7 at both ends have rod ends in the form of an eyelet, which are mounted on parallel to the roller axis, fixed to the support part 2.4, conical pin 8,9.

Bei der Montage wir das verjüngte Ende der Bolzen 8,9 durch die entsprechende Bohrung des Gelenkkopfes des Zugstabes 7 sowie eine Bohrung des Supportteils 2,4 geschoben. Bei dem sich dabei ergebenden Formschluss zwischen Gelenkkopf bzw. Bohrung und Bolzen 8,9 kommt der Zugstab 7 in die gewünschte Position relativ zum Supportteil 2,4. Dieser spielfreie Sitz stellt eine optimale Kraftübertragung sicher.During assembly, we pushed the tapered end of the bolt 8,9 through the corresponding bore of the joint head of the tension rod 7 and a bore of the support member 2,4. In the resulting positive connection between condyle or bore and bolt 8.9 comes the tension rod 7 in the desired position relative to the support part 2.4. This backlash-free seat ensures optimum power transmission.

Zum Lösen der Verbindung wird der Bolzen 8,9 wieder entfernt. Beim Herausziehen des Bolzen 8,9 wird der spielfreie Sitz aufgehoben, so dass die Verbindung problemlos gelöst werden kann.To release the connection, the bolt 8,9 is removed again. When pulling out the bolt 8.9 of play-free seat is released, so that the connection can be solved easily.

Um die Montage und Demontage zu erleichtern, können Hilfsmittel zum Einsatz kommen. Hierbei kann, wie in den Figuren 2a und 2b zu sehen, ein Hilfsmittel in Form einer, von einem Halter 14 getragenen Schraube 13 hilfreich sein, die mit dem entsprechenden Bolzen 8,9 gekoppelt wird.Tools can be used to facilitate assembly and disassembly. Here, as in the FIGS. 2a and 2b can be helpful, a tool in the form of a, carried by a holder 14 screw 13, which is coupled to the corresponding bolt 8.9.

Über das Drehen dieser Schraube 13 kann der Bolzen 8,9 so einfach verschoben werden.By turning this screw 13, the bolt 8,9 can be moved so easily.

Zur Erleichterung des vollständigen Entfernens der Bolzen 8,9 können die Halter 14 wegschwenkbar ausgeführt werden.To facilitate the complete removal of the bolts 8.9, the holder 14 can be executed wegschwenkbar.

Anstelle der Schraube 13 mit Halter 14 kann auch, wie in Figuren 3a und 3b gezeigt, ein Hilfsmittel in Form eines Hydraulik-, Pneumatik- oder Elektrozylinders 18, welcher den entsprechenden Bolzen 8,9 axial verschiebt, zum Einsatz kommen.Instead of the screw 13 with holder 14 can also, as in FIGS. 3a and 3b shown, an aid in the form of a hydraulic, pneumatic or electric cylinder 18, which axially displaces the corresponding pin 8,9 are used.

Die Presswalze 1 hat einen kleineren Durchmesser als die Gegenwalze 3. Dabei ist das Supportteil 2 der Presswalze 1 kleiner als deren Walzenmantel, so dass dieser bei einem notwendigen Wechsel nach dem Lösen der Verbindung problemlos über das Supportteil 2 geschoben werden kann.The press roll 1 has a smaller diameter than the counter roll 3. Here, the support part 2 of the press roll 1 is smaller than the roll shell, so that it can be easily pushed over the support member 2 in a necessary change after loosening the connection.

Wegen des kleineren Supportteils 2 der Presswalze 1 verlaufen die Zugstäbe 7 in Richtung der Presswalze 1 zur Pressebene 5 geneigt.Because of the smaller support part 2 of the press roll 1, the tension rods 7 are inclined in the direction of the press roll 1 to the press plane 5.

Die Gelenkköpfe an den Enden der Zugstäbe 7 befinden sich in Aussparungen 15 der Supportteile 2,4. Zum Ausbau der Zugstäbe 7 werden die Bolzen 8,9 gezogen und die Zugstäbe 7, wie in Figur 1b dargestellt, nach oben in eine Aussparung 10 des oberen Supportteils 2 geschoben. Danach werden die Zugstäbe 7 nach vorne geneigt und über eine Schräge 11 am unteren Supportteil 4 der Gegenwalze 3 herausgenommen.The rod ends at the ends of the tension rods 7 are located in recesses 15 of the support parts 2,4. To remove the tension rods 7, the bolts are pulled 8.9 and the tension rods 7, as in FIG. 1b shown, pushed up into a recess 10 of the upper support part 2. Thereafter, the tension rods 7 are inclined forward and removed via a slope 11 at the lower support part 4 of the backing roll 3.

Zum Wechsel eines endlosen, durch den Pressspalt laufenden Bandes, beispielsweise eines Pressfilzes, kann es genügen die Zugstäbe 7 in der Aussparung 10 zu fixieren.To change an endless, running through the press nip band, such as a press felt, it may be sufficient to fix the tension rods 7 in the recess 10.

Um die Montage der Zugstäbe 7 zu erleichtern, können gemäß den Figuren 2a und 2b Haltemittel zum Einsatz kommen. Über diese Haltemittel kann der Zugstab 7 nach dem Lösen der Verbindung, d.h. dem Ziehen der Bolzen 8,9 oder vor dem Herstellen der Verbindung, d.h. dem Einschieben der Bolzen 8,9 gehalten werden.In order to facilitate the assembly of the tension rods 7, according to the FIGS. 2a and 2b Holding means are used. About this holding means of the pull rod 7 after the release of the connection, ie the pulling of the bolts 8,9 or before the connection, ie the insertion of the bolts are held 8.9.

Als Haltemittel eignet sich insbesondere ein am Supportteil 2,4 befestigter Halter 16, an dem ein Haken 17 des Zugstabs 7 o. ä. eingehängt werden kann.As a holding means, in particular, a holder 16 attached to the support part 2.4, to which a hook 17 of the pull rod 7 o. Ä. Can be hung.

Dies erleichtert die Montage erheblich, zumal die Zugstäbe 7 sehr schwer sein können.This facilitates the assembly considerably, especially since the tension rods 7 can be very heavy.

Um ihr Gewicht zu reduzieren, können einzelne, insbesondere die auf der Führerseite angeordneten Zugstäbe 7 aus Leichtmetall oder einem faserverstärkten Kunststoff hergestellt werden.In order to reduce their weight, individual, in particular arranged on the leader side pull rods 7 made of light metal or a fiber-reinforced plastic can be produced.

Claims (11)

Pressanordnung zur Entwässerung oder Glättung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn in einer Maschine zur Herstellung und/oder Veredlung derselben mit wenigstens einem, von einer Press-(1) und einer Gegenwalze (3) gebildeten Pressspalt, deren Achsen zumindest an einem Walzenende in separaten Supportteilen (2,4) gelagert sind, wobei die Presswalze (1) einen rotierenden Walzenmantel besitzt, der über ein Anpresselement (12) zur Gegenwalze (3) gedrückt wird, die gegenüberliegenden Supportteile (2,4) wenigstens eines Walzenendes über zumindest einen Zugstab (7) lösbar miteinander verbunden und die Zugstäbe (7) zumindest an einem Supportteil (2,4) gelenkig gelagert sind, dadurch gekennzeichnet, dass
die Zugstäbe (7) an wenigstens einem Ende einen Gelenkkopf besitzen, der auf einem parallel zur Walzenachse verlaufenden, am Supportteil (2,4) fixierten, konischen Bolzen (8,9) gelagert ist.Press arrangement for dewatering or smoothing a paper, board, tissue or another fibrous web in a machine for producing and / or finishing the same with at least one press nip formed by a press (1) and a counter roll (3), their axes at least at one end of the roll in separate support parts (2,4) are mounted, wherein the press roll (1) has a rotating roll shell which is pressed via a contact element (12) to the counter roll (3), the opposite support members (2,4) at least a roller end via at least one pull rod (7) releasably connected to each other and the tension rods (7) are articulated at least on a support member (2,4), characterized in that
the tension rods (7) have at least one end of a joint head, which is mounted on a parallel to the roll axis extending on the support part (2,4) fixed, conical bolt (8,9). Pressanordnung nach Anspruch 1, dadurch gekennzeichnet, dass
die Zugstäbe (7) an beiden Enden gelenkig gelagert sind.Press arrangement according to claim 1, characterized in that
the tension rods (7) are articulated at both ends. Pressanordnung nach Anspruch 2, dadurch gekennzeichnet, dass
beide Enden der Zugstäbe (7) einen, auf einen konischen Bolzen (8,9) gelagerten Gelenkkopf besitzen.Press arrangement according to claim 2, characterized in that
Both ends of the tension rods (7) have a, on a conical bolt (8.9) mounted condyle. Pressanordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
die Supporteile (2,4) eines Walzenendes über mehrere, vorzugsweise zwei Zugstäbe (7) miteinander verbunden sind, wobei auf beiden Seiten der Pressebene (5) wenigstens ein Zugstab (7) vorhanden ist.Press arrangement according to one of the preceding claims, characterized in that
the support parts (2, 4) of one end of the roll are connected to one another via a plurality of, preferably two tension rods (7), wherein at least one tension rod (7) is present on both sides of the press plane (5). Pressanordnung nach Anspruch 4, dadurch gekennzeichnet, dass
die Zugstäbe (7) parallel zur Pressebene (5) verlaufen.Press arrangement according to claim 4, characterized in that
the tension rods (7) extend parallel to the press plane (5). Pressanordnung nach Anspruch 4, dadurch gekennzeichnet, dass
die Zugstäbe (7) zur Pressebene (5) geneigt verlaufen.Press arrangement according to claim 4, characterized in that
the tension rods (7) extend inclined to the press plane (5). Pressanordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
die Zugstäbe (7) wenigstens teilweise in Aussparungen (10,15) der Supportteile (2,4) angeordnet sind.Press arrangement according to one of the preceding claims, characterized in that
the tension rods (7) are at least partially arranged in recesses (10, 15) of the support parts (2, 4). Pressanordnung nach Anspruch 7, dadurch gekennzeichnet, dass
zumindest die Gelenkköpfe in Aussparungen (15) der Supportteile (2,4) angeordnet sind.Press arrangement according to claim 7, characterized in that
at least the rod ends in recesses (15) of the support parts (2,4) are arranged. Pressanordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
am Supportteil (2,4) Hilfsmittel zum Einführen und/oder Herausziehen der konischen Bolzen (8,9) vorhanden sind.Press arrangement according to one of the preceding claims, characterized in that
on the support part (2,4) aids for insertion and / or extraction of the conical bolts (8,9) are present. Pressanordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
an wenigsten einem Supportteil (2,4) Haltemittel zum Fixieren, insbesondere Einhängen des Zugstabs (7) vorhanden sind.Press arrangement according to one of the preceding claims, characterized in that
at least one support part (2,4) holding means for fixing, in particular suspension of the pull rod (7) are present. Pressanordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass
die Zugstäbe (7) zumindest an der Führerseite aus Leichtmetall und/oder einem faserverstärkten Kunststoff bestehen.Press arrangement according to one of the preceding claims, characterized in that
the tension rods (7) consist of light metal and / or a fiber-reinforced plastic, at least on the driver's side.
EP07122723A 2007-02-03 2007-12-10 Press device Not-in-force EP1953295B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07122723T PL1953295T3 (en) 2007-02-03 2007-12-10 Press device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007005395A DE102007005395A1 (en) 2007-02-03 2007-02-03 Press arrangement

Publications (2)

Publication Number Publication Date
EP1953295A1 true EP1953295A1 (en) 2008-08-06
EP1953295B1 EP1953295B1 (en) 2009-09-02

Family

ID=39042059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07122723A Not-in-force EP1953295B1 (en) 2007-02-03 2007-12-10 Press device

Country Status (6)

Country Link
EP (1) EP1953295B1 (en)
JP (1) JP2008190111A (en)
AT (1) ATE441757T1 (en)
DE (2) DE102007005395A1 (en)
ES (1) ES2330270T3 (en)
PL (1) PL1953295T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2151522A1 (en) * 2008-08-04 2010-02-10 Voith Patent GmbH Pressing device for paper machine
WO2010069766A1 (en) * 2008-12-18 2010-06-24 Voith Patent Gmbh Pressing arrangement for a paper, cardboard, or tissue making machine
DE102011085890A1 (en) 2010-11-26 2012-05-31 Metso Paper, Inc. Connecting arrangement of rolls used in e.g. press section of paper machine, has connecting elements that form contour in one position of cross section of hose mantle to achieve replacement of hose mantle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790908A (en) 1988-02-19 1988-12-13 Beloit Corporation Extended nip press belt guide and method
EP0531491A1 (en) 1991-03-28 1993-03-17 Voith Gmbh J M Roll press.
EP0666367A1 (en) * 1994-02-04 1995-08-09 Valmet Paper Machinery Inc. Coupling construction between extended-nip rolls and method in joining together of extended-nip rolls
WO2004035916A1 (en) * 2002-10-17 2004-04-29 Andritz Ag Pressing device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005040722A1 (en) 2005-08-27 2007-03-01 Voith Patent Gmbh Press arrangement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790908A (en) 1988-02-19 1988-12-13 Beloit Corporation Extended nip press belt guide and method
EP0531491A1 (en) 1991-03-28 1993-03-17 Voith Gmbh J M Roll press.
EP0666367A1 (en) * 1994-02-04 1995-08-09 Valmet Paper Machinery Inc. Coupling construction between extended-nip rolls and method in joining together of extended-nip rolls
WO2004035916A1 (en) * 2002-10-17 2004-04-29 Andritz Ag Pressing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2151522A1 (en) * 2008-08-04 2010-02-10 Voith Patent GmbH Pressing device for paper machine
WO2010069766A1 (en) * 2008-12-18 2010-06-24 Voith Patent Gmbh Pressing arrangement for a paper, cardboard, or tissue making machine
DE102011085890A1 (en) 2010-11-26 2012-05-31 Metso Paper, Inc. Connecting arrangement of rolls used in e.g. press section of paper machine, has connecting elements that form contour in one position of cross section of hose mantle to achieve replacement of hose mantle

Also Published As

Publication number Publication date
PL1953295T3 (en) 2010-01-29
EP1953295B1 (en) 2009-09-02
DE502007001442D1 (en) 2009-10-15
DE102007005395A1 (en) 2008-08-07
ES2330270T3 (en) 2009-12-07
JP2008190111A (en) 2008-08-21
ATE441757T1 (en) 2009-09-15

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