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EP3733961B1 - Module d'extrémité d'un rouleau de presse à sabot et procédé d'assemblage d'un module d'extrémité d'un rouleau de presse à sabot - Google Patents

Module d'extrémité d'un rouleau de presse à sabot et procédé d'assemblage d'un module d'extrémité d'un rouleau de presse à sabot Download PDF

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Publication number
EP3733961B1
EP3733961B1 EP19171555.6A EP19171555A EP3733961B1 EP 3733961 B1 EP3733961 B1 EP 3733961B1 EP 19171555 A EP19171555 A EP 19171555A EP 3733961 B1 EP3733961 B1 EP 3733961B1
Authority
EP
European Patent Office
Prior art keywords
pedestal
roll
annular structure
axially elongated
end module
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.)
Active
Application number
EP19171555.6A
Other languages
German (de)
English (en)
Other versions
EP3733961A1 (fr
Inventor
Seppo Kupiainen
Sami Lamminparras
Taneli Ylönen
Ville Eronen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Technologies Oy
Original Assignee
Valmet Technologies Oy
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Filing date
Publication date
Application filed by Valmet Technologies Oy filed Critical Valmet Technologies Oy
Priority to EP19171555.6A priority Critical patent/EP3733961B1/fr
Priority to CN202010337677.XA priority patent/CN111851112B/zh
Publication of EP3733961A1 publication Critical patent/EP3733961A1/fr
Application granted granted Critical
Publication of EP3733961B1 publication Critical patent/EP3733961B1/fr
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Classifications

    • 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
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • D21F3/0245—Means for fixing the sleeve to the roller end

Definitions

  • the invention pertains to a shoe roll end module and to a method to assemble such a shoe roll end module.
  • Such shoe rolls are for instance used in a paper or board machine.
  • Document EP 1 619 299 B1 discloses an extended-nip press.
  • the extended-nip press is provided between a shoe press roller and a counter roller, to press the moving web at a papermaking machine.
  • the shoe press roller has a fixed carrier and a rotating flexible roller belt.
  • the ends of the belt are supported on the carrier by end disks, with roller bearings running on bearing rings at roller journals. Between the shoe press and the belt a liquid is present.
  • eccentricity is made with eccentric ferrules turned from a cast billet and fitted directly to an axle stub. Manufacturing such an eccentric ferrule is a challenging work. Moreover, it is a risk for working safety, because those big rotating eccentric masses can come loose from attachments during the turning work in manufacturing.
  • an eccentric ferrule has a mass distribution that contributes for rotation in manufacturing.
  • Document EP 0 619 399 A1 discloses a method and an equipment for opening a nip in an extended-nip press.
  • a loading shoe of loading members of the extended-nip roll is shifted to an open position and apart from a glide-belt mantle.
  • an inside end-flange part of an end flange, which is operationally coupled with a bearing of the glide-belt mantle is rotated as parallel to the face of the central axle of the roll.
  • the glide-belt mantle is separated from contact with the back-up roll as the central axis of the end-flange part is placed at a distance from the central axis of the roll.
  • shoe roll end module according to claim 1.
  • Advantageous embodiments are carried out according to its dependent claims.
  • An advantageous assembly method according to the invention is defined by claim 11 and its dependent claims 12 to 15.
  • a shoe roll end module comprises a pedestal; a roll head configured to support a belt tensioned about the shoe roll heads; and an axially elongated annular structure in connection with the pedestal.
  • the axially elongated annular structure is configured to support the roll head.
  • a shoe roll end module can be assembled or disassembled in a fast and clear manner. Since the individual parts are combined to one end module having only one fitting to the axle, the end module can be manufactured in a simple manner before assembly to the axle as well as the end module can be handled more easily.
  • the shoe roll end module with support from the pedestal moves the support of the roll head further away from the stressed part of the axle where its profile changes from an axle stub to a support beam for a press shoe.
  • generating straight lines of an outer surface of the axially elongated annular structure can be arranged in parallel to a center axis of an axle hole in the pedestal, and the outer surface of the axially elongated annular structure is eccentric to the center axis of the axle hole.
  • an eccentric member which simply consists of an annular structure.
  • Such an annular structure is comparably easy to manufacture, e.g. by turning.
  • a center axis position of the annular structure can be easily arranged with a required relation to the center axis position of the pedestal's axle hole. Accordingly, an arbitrary amount of eccentricity can be caused with the very same parts.
  • the axially elongated annular structure can be a ferrule, being configured to, with a proximal end thereof, be attached to and dismounted from the pedestal or the roll head.
  • a center axis of the axially elongated annular structure can be arranged in parallel to a center axis of an axle hole in the pedestal and is distanced from the center axis of the pedestal.
  • the axially elongated annular structure can have a flange part on a distal end thereof, the flange part protruding radially outwards.
  • Such a flange part is advantageous for mounting a roll head, by inserting the annular structure into the roll head while the flange part gets into abutment with the roll head, the position of which is determined.
  • the flange part works as a stopper preventing the roll head from falling off the ferrule.
  • the roll head can have a base part, which is configured to be slid over the axially elongated annular structure. Moreover, it can have a rotating part, which is configured to hold the belt and to rotate with the belt a rotation axis of the shoe press roller, and a bearing, which is arranged between the base part and the rotating part.
  • the roll head can have a flange part protruding radially inwards, such that, when the roll head is slid over the axially elongated annular structure the flange part of the roll head and the flange part of the axially elongated annular structure form an annular gap therebetween.
  • the gap can serve as a pneumatic or hydraulic chamber for adjusting the roll head's position with regard to the annular structure and the pedestal.
  • the annular gap can have a port for introducing a fluid in order to increase the annular gap's volume by moving the roll head towards the pedestal, in order to determine the roll head's position with regard to the pedestal.
  • the axially elongated annular structure can be attachable in a manner such that its center axis changes its distance to the center axis of an axle hole in the pedestal.
  • the axially elongated annular structure can be attached to the pedestal at merely one location by a fixing means serving as rotation axis such that the axially elongated annular structure can swing about the fixing means for adjusting the position of its center axis.
  • a method to assemble a shoe roll end module comprises a step of sliding a roll head over an axially elongated annular structure; and a step of attaching the axially elongated annular structure supporting the roll head to a pedestal.
  • the attaching step can be performed in a manner that a center axis of the axially elongated annular structure is in parallel with the center axis of an axle hole of the pedestal.
  • a step of adjusting a horizontal and/or vertical position of the roll head with regard to the pedestal by shifting the axially elongated annular structure can be performed.
  • a step of adjusting a distance of the roll head to the pedestal by sliding it on the axially elongated annular structure can be performed in the shoe roll end module.
  • a distance-adjusting step can be performed, in which the distance of the roll head to the pedestal is adjusted by introducing a fluid into an annular gap.
  • the annular gap is established between a radially inwardly protruding flange of the roll head and a radially outwardly protruding flange arranged an a distal end of the axially elongated annular structure when viewed from the pedestal.
  • the distance-adjusting step can be performed by means of a working cylinder, having one of its ends attached with the roll head and having the other of its ends attached at the pedestal.
  • Fig. 1 is a perspective view of a pedestal according to the embodiment
  • Fig. 2 is a plan view of the pedestal
  • Fig. 3 is a section view of a shoe roll end module 2 structure according to the embodiment.
  • a pedestal 1 has an axle hole 11, which serves to accommodate an axle stub of a shoe roll.
  • axle hole serves to accommodate an axle stub of a shoe roll.
  • axle and related terms such as “axle hole” and “axle stub” are used throughout the application rather for sake of brevity.
  • a pressure beam and related terms such as an "accommodating hole for (such) a pressure beam” and a “stub of (such) a pressure beam”, respectively, are meant instead.
  • the axle hole 11 in section has an octagonal shape.
  • the highest surface 11b is finished with a degree of accuracy exceeding the finishing degree of the remaining seven surfaces.
  • This highest surface 11b serves as a torque surface, and is manufactured with
  • a corresponding surface of an axle stub 7 is manufactured with the same degree of accuracy.
  • a ferrule 5 as an axially elongated annular structure, is connected with the pedestal.
  • the ferrule 5 is connected with the pedestal by means of bolts 55.
  • the ferrule 5 is an annular member. It is connected with the pedestal 1 in a manner that its center axis OF deviates from the center axis OP of the pedestal. Thus, due to shifting of the ferrule 5, it is possible to achieve a required degree of eccentricity.
  • the ferrule 5 With the pedestal in an arbitrary manner as indicated by the arrows in Fig. 2 .
  • any required degree of eccentricity can be obtained when assembling the shoe roll head structure.
  • the ferrule 5 has a flange 51 at its distal end, i.e. the flange 51 is provided at the side distanced from the pedestal 1.
  • the flange 51 extends radially outwards and has two functions, which will be described later.
  • the ferrule 5 Before being connected with the pedestal 1, the ferrule 5 is inserted into an inner bore of the roll head 3when assembling the shoe roll end module 2.
  • the roll head 3 has an inner static structure 35 and an outer dynamic (rotating) structure 37.
  • a bearing 39 and a labyrinth seal connect these two structures 35 and 37 of the roll head 3 and prevent leakage of fluid, e.g. lubrication fluid.
  • the roll head 3 supports the belt 31.
  • a bellows 34 connects the roll head with the pedestal and prevents contamination of the inner portions of the roll head 3.
  • the roll head 3 is connected with the pedestal 1 by means of indexing rods 4.
  • These indexing rods 4 comprise a screw extending through a bore provided in the pedestal 1 and being in thread engagement with a thread bore 32 in the roll head 3.
  • An indexing head 41 is arranged on the outer side of the pedestal 1.
  • Loosening of the indexing nut 45 effects a movement of the roll head 3 from the pedestal 1 towards the machine center, i.e. into the right direction in the figures as also indicated by the double arrows in Fig. 3 .
  • This rightward movement is mainly effected by means of the compression springs 43.
  • the compression springs are provided about the portion of the screw between the roll head 3 and the pedestal 1.
  • a movement of the roll head 3 towards the pedestal 1 effects compression of the springs 43.
  • the compression is then relieved upon loosening of the indexing nut 45, which effects then the roll head's 3 movement towards the machine center.
  • the roll head 3 In its bore, the roll head 3 has a radially inwards extending flange 33, which cooperates with the flange 51 of the ferrule 5 in two manners as indicated above.
  • the flange 51 serves to secure the roll head 3 by getting into abutment with a flange 33 of the roll head. That is, the flange 33 is provided radially inwards and is arranged in an axial position between the pedestal 1 and the flange 51 of the ferrule 5.
  • the gap can be used as a hydraulic or pneumatic chamber. Then, by introducing a fluid into the annular gap, movement of the roll head towards the pedestal can be performed. This is done for instance to adjust the belt's 31 tension and indexing the belt to a different axial position in order to reduce belt wear in the edge areas.

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  • Rolls And Other Rotary Bodies (AREA)
  • Paper (AREA)

Claims (15)

  1. Module d'extrémité de rouleau à sabot comprenant :
    un support (1) ;
    une tête de rouleau (3) conçue pour supporter une courroie (31) tendue autour du rouleau à sabot ; et
    une structure annulaire axialement allongée (5) attachée au support (1), et supportant la tête de rouleau (3).
  2. Module d'extrémité de rouleau à sabot selon la revendication 1, dans lequel
    des génératrices droites d'une surface extérieure de la structure annulaire axialement allongée (5) sont agencées parallèlement à un axe central (OP) d'un orifice pour arbre (11) dans le support (1), et la surface extérieure de la structure annulaire axialement allongée (5) est excentrique relativement à l'axe central (OP) de l'orifice pour arbre (11).
  3. Module d'extrémité de rouleau à sabot selon la revendication 1 ou 2, dans lequel
    la structure annulaire axialement allongée (5) est un collier conçu pour, par le biais d'une extrémité proximale de celui-ci, être attaché au support (1) et détaché de celui-ci.
  4. Module d'extrémité de rouleau à sabot selon l'une quelconque des revendications précédentes, dans lequel
    un axe central (OF) de la structure annulaire axialement allongée (5) est agencé parallèlement à un axe central (OP) d'un orifice pour arbre (11) dans le support (1) et est espacé de l'axe central (OP) du support (1).
  5. Module d'extrémité de rouleau à sabot selon l'une quelconque des revendications précédentes, dans lequel
    la structure annulaire axialement allongée (5) comporte une partie collerette (51) sur une extrémité distale de celle-ci, la partie collerette (51) faisant saillie radialement vers l'extérieur.
  6. Module d'extrémité de rouleau à sabot selon l'une quelconque des revendications précédentes, dans lequel
    la tête de rouleau (3) comporte
    une partie base (35) conçue pour être adaptée par coulissement par-dessus la structure annulaire axialement allongée (5),
    une partie rotative (37) conçue pour maintenir la courroie (31) et pour tourner avec la courroie (31) autour d'un axe de rotation du rouleau presseur à sabot, et
    un palier (39) placé entre la partie base et la partie rotative.
  7. Module d'extrémité de rouleau à sabot selon la revendication 5 ou 6, dans lequel
    la tête de rouleau (3) comporte une partie collerette (33) faisant saillie radialement vers l'intérieur, de telle sorte que, lorsque la tête de rouleau (3) est adaptée par coulissement par-dessus la structure annulaire axialement allongée (5), la partie collerette (33) de la tête de rouleau (3) et la partie collerette (51) de la structure annulaire axialement allongée (5) forment un intervalle annulaire (53) entre elles.
  8. Module d'extrémité de rouleau à sabot selon la revendication 7, dans lequel
    l'intervalle annulaire (53) comporte un trou pour l'introduction d'un fluide afin d'augmenter le volume de l'intervalle annulaire (53) en déplaçant la tête de rouleau (3) vers le support (1), afin de déterminer la position de la tête de rouleau (3) par rapport au support (1).
  9. Module d'extrémité de rouleau à sabot selon l'une quelconque des revendications précédentes, dans lequel
    la structure annulaire axialement allongée (5) peut être attachée de telle façon que son axe central (OF) change son espacement relativement à l'axe central (OP) d'un orifice pour arbre (11) dans le support (1).
  10. Module d'extrémité de rouleau à sabot selon l'une quelconque des revendications précédentes, dans lequel
    la structure annulaire axialement allongée (5) est attachée au support (1) à un seul emplacement par un moyen de fixation (55) servant d'axe de rotation de telle sorte que la structure annulaire axialement allongée (5) puisse pivoter autour du moyen de fixation (55) pour ajuster la position de son axe central (OF).
  11. Procédé d'assemblage d'un module d'extrémité de rouleau à sabot, comprenant
    une étape consistant à adapter par coulissement une tête de rouleau (3) par-dessus une structure annulaire axialement allongée (5) ;
    une étape consistant à attacher la structure annulaire axialement allongée (5) supportant la tête de rouleau (3) à un support (1).
  12. Procédé d'assemblage d'un module d'extrémité de rouleau à sabot selon la revendication 11, dans lequel l'étape d'attache est accomplie de façon à ce qu'un axe central (OF) de la structure annulaire axialement allongée (5) soit parallèle à l'axe central d'un orifice pour arbre (11) du support (1).
  13. Procédé d'assemblage d'un module d'extrémité de rouleau à sabot selon la revendication 11 ou 12, comprenant, en outre,
    une étape consistant à ajuster une position horizontale et/ou verticale de la tête de rouleau (3) par rapport au support en déplaçant la structure annulaire axialement allongée (3).
  14. Procédé d'assemblage d'un module d'extrémité de rouleau à sabot selon l'une quelconque des revendications 11 à 13, comprenant, en outre,
    une étape consistant à ajuster une distance de la tête de rouleau (3) par rapport au support (1) en la faisant coulisser sur la structure annulaire axialement allongée (5).
  15. Procédé d'assemblage d'un module d'extrémité de rouleau à sabot selon l'une quelconque des revendications 11 à 14, dans lequel
    une étape d'ajustement de distance est exécutée, dans laquelle la distance de la tête de rouleau (3) par rapport au support (1) est ajustée en introduisant un fluide dans un intervalle annulaire (53) établi entre une collerette faisant saillie radialement vers l'intérieur (33) de la tête de rouleau (3) et une collerette faisant saillie radialement vers l'extérieur (51) formée sur une extrémité distale de la structure annulaire axialement allongée (5) selon une vue depuis le support (1), et/ou l'étape d'ajustement de distance est accomplie au moyen d'un cylindre de travail, ayant une de ses extrémités attachée à la tête de rouleau (3) et ayant l'autre de ses extrémités attachée au support (1).
EP19171555.6A 2019-04-29 2019-04-29 Module d'extrémité d'un rouleau de presse à sabot et procédé d'assemblage d'un module d'extrémité d'un rouleau de presse à sabot Active EP3733961B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19171555.6A EP3733961B1 (fr) 2019-04-29 2019-04-29 Module d'extrémité d'un rouleau de presse à sabot et procédé d'assemblage d'un module d'extrémité d'un rouleau de presse à sabot
CN202010337677.XA CN111851112B (zh) 2019-04-29 2020-04-26 靴式辊端部模块以及靴式辊端部模块的组装方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19171555.6A EP3733961B1 (fr) 2019-04-29 2019-04-29 Module d'extrémité d'un rouleau de presse à sabot et procédé d'assemblage d'un module d'extrémité d'un rouleau de presse à sabot

Publications (2)

Publication Number Publication Date
EP3733961A1 EP3733961A1 (fr) 2020-11-04
EP3733961B1 true EP3733961B1 (fr) 2024-07-24

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Application Number Title Priority Date Filing Date
EP19171555.6A Active EP3733961B1 (fr) 2019-04-29 2019-04-29 Module d'extrémité d'un rouleau de presse à sabot et procédé d'assemblage d'un module d'extrémité d'un rouleau de presse à sabot

Country Status (2)

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EP (1) EP3733961B1 (fr)
CN (1) CN111851112B (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI96046C (fi) * 1993-03-24 1996-04-25 Valmet Paper Machinery Inc Pitkänippipuristimen nipin avausmenetelmä ja laitteisto pitkänippipuristimen nipin avaamiseksi
US6886456B2 (en) * 2001-02-13 2005-05-03 Pmt Italia Spa Anchor device for anchoring a peripheral edge of a press blanket
CA2512007A1 (fr) 2004-07-20 2006-01-20 Eduard Kuesters Maschinenfabrik Gmbh & Co. Kg Dispositif de formage d'etranglement prolonge
JP2006336128A (ja) * 2005-05-31 2006-12-14 Ichikawa Co Ltd 抄紙機のシュープレス機構
DE102010002197A1 (de) * 2010-02-22 2011-08-25 Voith Patent GmbH, 89522 Vorrichtung mit einer Schuhwalze

Also Published As

Publication number Publication date
CN111851112B (zh) 2022-07-26
CN111851112A (zh) 2020-10-30
EP3733961A1 (fr) 2020-11-04

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