EP1600554B1 - Schuhwalze - Google Patents

Schuhwalze Download PDF

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Publication number
EP1600554B1
EP1600554B1 EP05102256A EP05102256A EP1600554B1 EP 1600554 B1 EP1600554 B1 EP 1600554B1 EP 05102256 A EP05102256 A EP 05102256A EP 05102256 A EP05102256 A EP 05102256A EP 1600554 B1 EP1600554 B1 EP 1600554B1
Authority
EP
European Patent Office
Prior art keywords
roll according
shoe roll
shell
shoe
drive
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.)
Expired - Lifetime
Application number
EP05102256A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1600554A2 (de
EP1600554A3 (de
Inventor
Andreas SCHÜTTE
Andreas Neumann
Rainer Fenske
Diethelm Beisiegel
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Priority to PL05102256T priority Critical patent/PL1600554T3/pl
Publication of EP1600554A2 publication Critical patent/EP1600554A2/de
Publication of EP1600554A3 publication Critical patent/EP1600554A3/de
Application granted granted Critical
Publication of EP1600554B1 publication Critical patent/EP1600554B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/0006—Driving arrangements

Definitions

  • the invention relates to a shoe roll for producing and / or treating a material web, in particular for a calender, with an axially displaceable jacket and a drive for the rotation of the shell of the rotary drive is designed so that it compensates for a respective axial movement of the shell or tolerated, according to the preamble of present claim 1.
  • Such a roller is from the document US Pat. No. 6,164,198 in connection with the document US 5 084 137 known.
  • Such a shoe roll can cooperate, for example, with a particular overhead heating roller, and during normal operation of the shoe roll shell can then be driven, for example, only by the hot counter-roller. However, it must not come to a direct contact between the shoe roll shell and the heating roller. Between these, the respective material or paper web must always lie, otherwise the shoe roll shell would be too hot. Accordingly, a drive is required to accelerate the shoe roll to the speed of the heated backing roll.
  • the invention has for its object to provide an improved shoe roll of the type mentioned, in which the aforementioned problems are eliminated.
  • This object is achieved in that the rotary drive at least two electric drive motors whose drive shafts are torque-connected with each other.
  • the jacket is preferably mounted on its two edges by means of clamping disks, wherein the clamping disks can be driven via the rotary drive.
  • the jacket is also axially displaceable over the tension discs in an advantageous manner.
  • the shoe roll may for example be designed so that the jacket is axially displaceable by about ⁇ 50 mm
  • the clamping disks can be driven from the outside and / or from the inside.
  • the rotary drive comprises at least one electric drive motor both on the driver's side and on the drive side.
  • the rotary drive can comprise, for example, at least one power take-off shaft, at least one clutch and / or at least one splined shaft.
  • the drive shaft may be mechanically connected to each other, for example via a propeller shaft with Metallbalgkupplept.
  • a respective disc-shaped electric drive motor is seated on a respective drive shaft.
  • two electric drive motors can operate via corresponding sensors and a corresponding control, for example also according to the master / slave principle.
  • a respective electric drive motor is provided with a cooling.
  • the cooling for example, with fluid, gas (air), water and preferably done with oil, as in a respective leakage oil in the jacket is not contaminated.
  • a gear designed as a ring gear is provided in the interior of the roll on the clamping disks, in which a flying pinion engages.
  • These pinions can each be mounted in a displaceable carrier.
  • a respective carrier may on the one hand be attached to a non-rotating part of the respective clamping device for the jacket and on the other hand guided in a support body.
  • the pinions can each sit on a pinion shaft, which is coupled via a spline displaceable with a respective, mounted in a support body intermediate shaft.
  • the intermediate shafts can each be coupled via a metal bellows coupling with the relevant drive shaft.
  • the position of the teeth of the internally toothed cavity should preferably not change relative to those of the pinion teeth in order to avoid wear and damage to the teeth. Possible cause for a change in position is a wobbling movement of the clamping disks and / or a respective deflection of the pinion shafts.
  • a respective pinion shaft is fixedly mounted on the bearing sleeve, on which the respective clamping sleeve is mounted.
  • a tumbling motion is thus excluded.
  • two bearing points may be provided in the axial direction, for example, two deep groove ball bearings side by side, which are axially biased to reduce the clearance to an acceptable level. With the appropriate game and a respective tumbling motion is avoided.
  • a universal joint may be provided between a respective pinion shaft and the respective drive shaft.
  • an air pressure for cooling the electric drive motors may prevail in the stator of a respective drive motor, an air pressure, this pressure is preferably slightly higher than the internal pressure roller.
  • the jacket with respect to a fixed support body of the roller is radially adjustable, so there is a so-called inner stroke.
  • the nip can thus be closed or opened by raising or lowering the shoe.
  • lubricating oil of the shell is no longer stripped in the desired manner, which can lead to damage. It can therefore in the circumferential direction before and / or behind a press shoe, preferably in at least one upper quadrant of the roller, a ⁇ labstreifance be provided. This ⁇ labstreifance is then advantageously pressed at formed with a counter element open nip to the jacket.
  • an oil pan is provided into which the stripped oil passes by gravity and over which this oil is traceable in the cooling oil circuit.
  • At least one contact pressure element acting on the jacket is provided with a shim.
  • the jacket can be acted upon by two pressing element rows arranged perpendicular to the circumferential direction of the jacket.
  • these two Anpresselement Horn preferably be acted upon separately from each other with pressure.
  • FIG. 1 shows a schematic, partially cutaway view of an exemplary embodiment of a shoe roll 10 for the production and / or treatment of a material web, which may be in particular a paper or board web.
  • the shoe roll 10 may be intended in particular for a calender and work together with a particular overhead heating roller.
  • the shoe roll 10 has an axially displaceable jacket 12, which may be, for example, a so-called “laualiflex" coat.
  • the jacket 12 is therefore so flexible that it can adapt to the shape of a counter or heating roller, for example, to form an extended press nip for smoothing a paper or board web with the heated counter-roll.
  • the shoe roll 10 is provided with a drive 14 for the rotation of the shell 12.
  • this rotary drive 14 is configured such that it compensates or tolerates a respective axial movement of the jacket 12.
  • clamping discs 16 At its two edges of the jacket 12 is mounted on clamping discs 16. In this case, these clamping disks 16 can be driven via the rotary drive. In addition, the jacket 12 is axially displaceable over the clamping disks 16.
  • the clamping discs 16 are driven from the inside. Alternatively or additionally, however, a drive from the outside is conceivable.
  • the rotary drive 14 in the illustrated embodiment both on the driver side and on the drive side each having an electric drive motor 18.
  • the rotary drive 14 for example, at least one PTO, at least one clutch 20 and / or at least comprise a particular axially displaceable splined shaft 22.
  • the drive shafts 24 of the two electric drive motors 18 of the rotary drive 14 may be connected to one another in a torque-locking manner.
  • the drive shafts 24 can, for example, via a propeller shaft 26 with e.g. Metallbalgkupplept 20 mechanically connected to each other.
  • the seated on a respective drive shaft 24 electric drive motors 18 may have a disc-shaped configuration.
  • a gearwheel 28 designed as a ring gear is provided on the tensioning disks 16, into which a flying pinion 30 engages.
  • the pinions 30 are each mounted in a displaceable carrier.
  • a respective carrier may on the one hand be attached to a non-rotating part of the respective clamping device for the casing 12 and on the other hand guided in a support body 32.
  • the pinions 30 each seated on a pinion shaft 34 which is slidably coupled via a spline with a respective, mounted in a support body 32 intermediate shaft 36.
  • the intermediate shafts 36 are each connected via e.g. a metal bellows coupling 20 is coupled to the respective drive shaft 24.
  • a respective pinion shaft 34 is fixedly mounted on the bearing sleeve 38, on which the respective clamping sleeve 16 is mounted.
  • FIG. 2 shows a modification of the embodiment according to FIG. 1 in which between a respective pinion shaft 34 and the respective drive shaft 24, a preferably double universal joint 42 is provided.
  • a universal joint 42 is used to compensate for any wobbling movements of the clamping or end plates 16.
  • the embodiment according to FIG. 2 at least essentially the same structure as the one of the FIG. 1 have. Corresponding parts are assigned the same reference numerals.
  • FIG. 3 shows one with the FIG. 1 Comparable partial representation of a shoe roll 10 with a spherical toothing between pinion 30 and gear 28.
  • the teeth 44 of the pinion 30 have in section through the axial center of the pinion 30 (section BB-) one greater thickness than in the axially outer region (section AA).
  • Such spherical toothing is particularly advantageous when the angle between the respective pinion shaft 34 and the roller axis is not equal to zero.
  • FIG. 4 shows a schematic cross-sectional view of a shoe roll 10 with a be pressed against the roll shell 12 ⁇ labstreifance 46.
  • ⁇ labstreifology 46 may be provided in the circumferential direction in particular before and / or behind a press shoe 50, preferably in at least one upper quadrant of the roller. It is with the nip open, which is formed with a counter-roller such as a heat roller, can be pressed against the jacket 12.
  • an oil sump 48 or gutter can be provided, in which the stripped oil passes by gravity and through which this oil is traceable into the cooling oil circuit.
  • FIG. 4 Moreover, the support body 32 and a journal 40 of the roller 10 can be seen again.
  • the applicable to the inside of the shell 12 ⁇ labstreifance 46 is radially movable in the present case, for example. Between this ⁇ labstreifance 46 and the oil pan 48, a baffle 52 may be provided for the stripped oil.
  • FIG. 5 shows a schematic representation of a cooled electric drive motor 18, in whose stator an air pressure p1 prevails, wherein this pressure is preferably slightly higher than the internal cylinder pressure p0.
  • the seal can be made for example via a shaft seal 54 or the like.
  • an inlet 56 and an outlet 58 for cooling can be seen.
  • the problem is solved that a drive is required to accelerate the shoe roll to the speed of the backing roll, the roll shell while the hot counter roll may not touch directly.
  • provision is made inter alia to drive the tensioning disks, wherein a drive from the outside and / or from the inside is possible.
  • the roll shell is moved axially to counteract premature wear.
  • the drive must be axially variable, for which purpose, in addition to an electric drive motor on the driver's side and the drive side, for example, at least one PTO, at least one clutch and / or at least one splined shaft can be provided.
  • the provided on the driver and drive side drive shafts are connected to each other torque-locking. Basically, by appropriate sensors and a corresponding control but also a master / slave operation of the engine conceivable. The use of two motors ensures the required redundancy.
  • the motors can be provided with a cooling, wherein the cooling, for example, by a fluid, gas (air), water and preferably with oil, as in a respective leakage oil in the jacket is not contaminated.
  • a cooling for example, by a fluid, gas (air), water and preferably with oil, as in a respective leakage oil in the jacket is not contaminated.
  • the position of the teeth of the internally toothed ring gear should not change relative to the teeth of the pinion as possible, in order to avoid wear or damage to the teeth.
  • a possible cause for each one Variation of position are wobbling movements of the clamping disks and / or a respective deflection of the pinion shafts.
  • a fixed bearing of the pinion shaft is provided on the bearing sleeve, on which the respective clamping disk is mounted, so that tumbling movements are excluded.
  • two bearing points in the axial direction are conceivable, for example, two deep groove ball bearings next to each other, which are axially biased to reduce the game to an acceptable level (see, for example Fig. 1 ).
  • a corresponding game can cause a tumbling motion.
  • the shoe whales can be provided with a so-called inner hub.
  • the nip By raising or lowering the press shoe, the nip can thus be opened or closed.
  • the lubricating oil of the jacket is no longer reliably removed, which can lead to damage.
  • an oil scraper bar may be provided in front of and / or behind the shoe, preferably in the upper two quadrants. The oil scraper bar can be pressed on and is applied with the nip open. The stripped oil runs due to gravity in an oil sump and is there returned to the cooling oil circuit (see. FIG. 4 ).
  • the paper web is carried out between an overhead heating roller and the lower shoe roller with rotating press cover.
  • the shoe roll can be hydraulically displaceable in the vertical direction.
  • the Heating roller is preferably installed stationary. To produce a pressing pressure, the shoe roll is first turned against the heating roller.
  • the shoe roll is raised until the heating roller and the shell of the shoe roll just touch, or the shoe roll is raised until the outer diameter of the heating roller and the undeformed shell overlap.
  • the jacket dips into the outer diameter of the heating roller and is deformed.
  • the pressure shoe height can be adapted in each case with shims bolted to the shoe underside.
  • the necessary pressing pressure is applied by, for example, hydraulic pressure elements that press the shoe against the heating roller.
  • These pressing elements can be arranged for example in two rows perpendicular to the paper direction. They can be pressurized separately from each other. By different pressures in the two rows then the drive point of the resulting pressure force can be moved in the paper direction. Such a shift results in a change in the pressure profile in the paper direction.
  • the pressure in the two rows can be varied by, for example, ⁇ 25%.
  • the shoe roll can be equipped with pressure shoes with a press zone length between, for example, 130 mm and for example 250 mm.
  • the pressure shoe can be changed without removing the shoe roll.
  • the shoe roll can be moved away, for example, about 300 mm from the heating roller.
  • the press jacket must not come in direct contact with the heating roller, since the jacket material would not be able to withstand the surface temperature of the heating roller. Therefore, the press nip may only be closed when a paper web is in the press nip.
  • a Teflon tape or the like revolving at paper speed can be installed here, the position of which is readjusted via a web edge sensor and an adjustable support frame of the paper web edge.
  • the press cover can be cooled in the edge region with a water / air mixture.
  • the drive required for this purpose is preferably located in the interior of the shoe roll.
  • a gearwheel is mounted inside the roller in each case.
  • This gear is preferably designed as a ring gear, in which engages a cantilevered pinion.
  • the pinion is mounted on the leader and the drive side in each case in a displaceable carrier, which is fastened on the one hand to a non-rotating part of the respective clamping device for the press cover and on the other hand guided in the support body.
  • the pinion shafts can be coupled on the driver and the drive side in each case via a spline displaced with each one mounted on the leader or drive side in the support body intermediate shaft.
  • the intermediate shafts can each be coupled to the two drive shafts with a metal bellows coupling present on the driver or drive side.
  • a disc-shaped electric motor is suitably attached on each of these two drive shafts.
  • the two drive shafts can be connected via a propeller shaft with e.g. Metal bellows couplings be mechanically interconnected.
  • the two electric motors are preferably cooled with oil inside. All electrical lines can be led out through the bearing pin on the drive side of the roller. All shaft bearings as well as the splines on the driver and drive side can be supplied with pressurized oil via one nozzle per lubrication point.
  • an external drive can be retrofitted, which engages on the drive side via a shaft through a bearing block and a clamping device in the gear of the clamping disc.
  • an approximately pressure pad wide squeegee be installed inside the roll before entering the Pressure shoe.
  • Such a bar can for example be pressed pneumatically against the inside of the press jacket, whereby the entrained by the press cover oil is stripped off and can flow directly into the machine-wide oil drain pan.

Landscapes

  • Paper (AREA)
  • Friction Gearing (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Treatment Of Fiber Materials (AREA)
EP05102256A 2004-05-26 2005-03-22 Schuhwalze Expired - Lifetime EP1600554B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05102256T PL1600554T3 (pl) 2004-05-26 2005-03-22 Walec trzewikowy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004025778A DE102004025778A1 (de) 2004-05-26 2004-05-26 Schuhwalze
DE102004025778 2004-05-26

Publications (3)

Publication Number Publication Date
EP1600554A2 EP1600554A2 (de) 2005-11-30
EP1600554A3 EP1600554A3 (de) 2005-12-21
EP1600554B1 true EP1600554B1 (de) 2009-06-03

Family

ID=34939027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05102256A Expired - Lifetime EP1600554B1 (de) 2004-05-26 2005-03-22 Schuhwalze

Country Status (4)

Country Link
EP (1) EP1600554B1 (pl)
AT (1) ATE433010T1 (pl)
DE (2) DE102004025778A1 (pl)
PL (1) PL1600554T3 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2325386A1 (de) 2009-11-20 2011-05-25 Voith Patent GmbH Biegeeinstellwalze

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3607941A1 (de) * 1985-10-30 1987-05-07 Escher Wyss Gmbh Presseinrichtung zum entwaessern einer warenbahn
SE464922B (sv) * 1990-05-08 1991-07-01 Valmet Paper Machinery Inc Pressvals
SE9804346D0 (sv) * 1998-12-16 1998-12-16 Valmet Corp Method and apparatus for calendering paper
SE515926C2 (sv) * 1999-12-08 2001-10-29 Valmet Karlstad Ab Metod och anordning för oljeevakuering från en skopressenhet
FI116228B (fi) * 2001-07-05 2005-10-14 Vaahto Oy Menetelmä pitkänippipuristimen kuormituskengän asennon ohjaamiseksi ja pitkänippipuristin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2325386A1 (de) 2009-11-20 2011-05-25 Voith Patent GmbH Biegeeinstellwalze
DE102009046924A1 (de) 2009-11-20 2011-05-26 Voith Patent Gmbh Biegeeinstellwalze

Also Published As

Publication number Publication date
EP1600554A2 (de) 2005-11-30
PL1600554T3 (pl) 2009-10-30
DE502005007391D1 (de) 2009-07-16
EP1600554A3 (de) 2005-12-21
DE102004025778A1 (de) 2005-12-22
ATE433010T1 (de) 2009-06-15

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