DE102007051395A1 - Variable-flexibility roller for paper or cardboard finishing machines, has pressure accumulator, which has membrane, bubble or piston, with which pressure chamber is divided into two chambers - Google Patents
Variable-flexibility roller for paper or cardboard finishing machines, has pressure accumulator, which has membrane, bubble or piston, with which pressure chamber is divided into two chambers Download PDFInfo
- Publication number
- DE102007051395A1 DE102007051395A1 DE102007051395A DE102007051395A DE102007051395A1 DE 102007051395 A1 DE102007051395 A1 DE 102007051395A1 DE 102007051395 A DE102007051395 A DE 102007051395A DE 102007051395 A DE102007051395 A DE 102007051395A DE 102007051395 A1 DE102007051395 A1 DE 102007051395A1
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- accumulator
- membrane
- chamber
- piston
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- D21G1/0206—Controlled deflection rolls
- D21G1/0213—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member
- D21G1/022—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member the means using fluid pressure
-
- 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
- D21G1/0206—Controlled deflection rolls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/003—Bowed or curved rolls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/02—Bearings
- F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
- F16C13/024—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle
- F16C13/026—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure
- F16C13/028—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure with a plurality of supports along the length of the roll mantle, e.g. hydraulic jacks
Abstract
Description
Gegenstand der vorliegenden Erfindung ist eine für Papier-, Karton- oder Ausrüstungsmaschinen bestimmte Durchbiegungseinstellwalze, die ein drehfestes, d.h. stationäres Joch, einen von hydrostatischen Lagerelementen gestützt um dieses Joch umlaufenden Walzenmantel, an dem Joch angeordnete hydraulische Stellantriebe zum Belasten/Stützen des Walzenmantels mittels eines Hydraulikmediums sowie wenigstens ein Lagerelement und/oder wenigstens einen hydraulischen Stellantrieb mit Druckakkumulator umfasst.object The present invention is one for paper, board or finishing machines certain deflection adjustment roller which is a non-rotatable, i. stationary yoke, one supported by hydrostatic bearing elements around this yoke Roll shell, arranged on the yoke hydraulic actuators for loading / supporting the roll shell by means of a hydraulic medium and at least a bearing element and / or at least one hydraulic actuator includes with pressure accumulator.
Durchbiegungseinstellwalzen
der oben beschriebenen Art für
Papier-, Karton- und Ausrüstungsmaschinen
sind zum Beispiel aus der
Ein Problem bei solchen Walzen sind die bei ihnen auftretenden Schwingungen, die ihre Ursache u.a. in Ungenauigkeiten bei der Fertigung der Walze, in der Verformung der Walzenoberfläche während des Betriebs sowie in den Dickenschwankungen der durch den Nip laufenden Faserstoffbahn oder des Filzes haben. Dauern diese Schwingungen längere Zeit an, so wird dadurch die Verformung des Walzenbelags und des Filzes verstärkt, was als Barring-Erscheinung bekannt ist. Mit zunehmender Intensität der Barring-Erscheinung kommt es zu einer Qualitätsverschlechterung der Faserstoffbahn, zu mechanischer Beanspruchung und zu Lärmproblemen an der Maschine.One Problem with such rollers are the vibrations occurring in them, their cause u.a. inaccuracies in the manufacture of the roller, in the deformation of the roll surface during the Operating as well as in the thickness variations of the current through the nip Have fibrous web or felt. Take these vibrations longer Time, so that the deformation of the roll lining and the Reinforced felt, which is known as a barring phenomenon. With increasing intensity of the barring appearance there is a deterioration in quality the fibrous web, to mechanical stress and noise problems at the machine.
Eine
Lösung
zur Beseitigung dieser oben genannten Mängel ist in der Patentschrift
Mit der vorliegenden Erfindung sollen nun die oben genannten Mängel beseitigt oder wenigstens wesentlich reduziert werden.With The present invention will now overcome the above-mentioned deficiencies or at least substantially reduced.
Gelöst wird diese Aufgabe mit den kennzeichnenden Merkmalen der Erfindung, nämlich dadurch, dass der Druckakkumulator im Druckraum des Lagerelements und/oder des hydraulischen Stellantriebs angeordnet ist, und dass der Akkumulator eine Membran, eine Blase oder einen Kolben hat, mit der/dem der Druckraum in zwei Kammern geteilt ist.Is solved this object with the characterizing features of the invention, namely that the pressure accumulator in the pressure chamber of the bearing element and / or the hydraulic actuator is arranged, and that the accumulator a membrane, a bladder or a piston has, with the / the Pressure chamber is divided into two chambers.
Mit der erfindungsgemäßen Anordnung ist es möglich, den Druckakkumulator weiterhin zum Eliminieren der Barring-Erscheinung einzusetzen. Der im Druckraum angeordnete Druckakkumulator ist betriebszuverlässig, weil damit zum Beispiel zusätzliche Rohrleitungen und Anschlüsse, in denen es zur Dämpfung der Druckspitze kommen kann, vermieden werden. Gleichzeitig wird damit eine Anordnung geschaffen, in der der Druckakkumulator schneller als bisher auf Druckspitzen reagiert. Es ist nun die Möglichkeit gegeben, jedes einzelne Stützelement über einen an die Walze geführten Versorgungskanal mit Druckmedium zu versorgen und den Druckakkumulator/die Druckakkumulatoren über einen zweiten an die Walze geführten Versorgungskanal mit Gas zu versorgen.With the inventive arrangement Is it possible, the pressure accumulator continues to eliminate the barring phenomenon use. The arranged in the pressure chamber pressure accumulator is reliable, because with it for example additional Piping and connections, in which it is for cushioning the pressure peak can come, be avoided. At the same time thus creating an arrangement in which the pressure accumulator faster than so far reacted to pressure peaks. It is now the possibility given, each individual support element over a guided to the roller Supply supply channel with pressure medium and the pressure accumulator / the Pressure accumulators over a second guided to the roller Supply gas to the supply channel.
Mit der erfindungsgemäßen Anordnung kann Einfluss auf die Steifigkeit des Hydrauliksystems und damit auch auf die Eigenfrequenz der Walze genommen und so die Schwingung, d.h. die Vibration verringert werden. Außerdem funktioniert der Akkumulator als wirksamer Dämpfer bei der Umwandlung von Schwingungsenergie beim Komprimieren des unter dem Akkumulator wirkenden Gases in Wärme und bei den Deformationen der Membran (o. dgl.) des Akkumulators und hilft so, die Barring-Erscheinung zu dämpfen oder zu eliminieren.With the inventive arrangement can affect the rigidity of the hydraulic system and thus also taken to the natural frequency of the roller and so the vibration, i.e. the vibration can be reduced. In addition, the accumulator works as effective damper in the conversion of vibrational energy when compressing the under the accumulator acting gas in heat and in the deformations the membrane (or the like) of the accumulator and thus helps to dampen the barring phenomenon or to eliminate.
Bevorzugte Ausführungsformen der vorliegenden Erfindung sind in den abhängigen Patentansprüchen dargelegt.preferred embodiments The present invention is set forth in the dependent claims.
Im Folgenden wird die Erfindung unter Bezugnahme auf die beigefügten Zeichnungen eingehender beschrieben. Es zeigen:in the The invention will now be described with reference to the accompanying drawings described in more detail. Show it:
In
Weiter
ist in
Die
in
Die
in
Der
Druck und die Gasmenge in der zweiten Kammer
Die
Druckregelung kann auch zonenweise erfolgen, wobei dann jeweils
mehrere parallel geschaltete hydraulische Stellantriebe an die gleiche Regelung
geschaltet sind. Die Gasmenge in der zweiten Kammer
Der
Kolben des Membrankolbenakkumulators
Mit einer solchen Anordnung wird außerdem der Akkumulator über seine große Fläche in direkten Kontakt mit dem Hydraulikzylinder gebracht. Gewöhnlich wird der Akkumulator über ein Rohr an ein (beliebiges) Hydrauliksystem angeschlossen. Mit dem erfindungsgemäßen direkt im Zylinder angeordneten Druckakkumulator werden die in Rohrleitungen, Anschlussstücken und Bohrungen entstehenden Verluste, die ansonsten die Wirkung des Druckakkumulators schwächen, vermieden.With Such an arrangement is also the Accumulator over his size area brought into direct contact with the hydraulic cylinder. Usually will the accumulator over a pipe connected to a (any) hydraulic system. With the according to the invention directly arranged in the cylinder pressure accumulator are in piping, fittings and drilling losses that would otherwise affect the effect of Weaken pressure accumulator, avoided.
Der erfindungsgemäße Druckakkumulator kann auch in andersartige hydraulische Stellantriebe, wie zum Beispiel in einen walzenexternen Belastungszylinder, integriert werden.Of the Pressure accumulator according to the invention can also in different types of hydraulic actuators, such as be integrated into a cylinder external load cylinder.
Die vorliegende Erfindung ist nicht auf die hier beschriebenen Ausführungsformen beschränkt, sondern kann im Rahmen des durch die Patentansprüche definierten Schutzbereichs in vielfältiger Weise zur Anwendung gebracht werden.The The present invention is not limited to the embodiments described herein limited, but may be within the scope defined by the claims in many ways be applied.
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20065685A FI122329B (en) | 2006-10-30 | 2006-10-30 | Bending-compensated roller for paper / cardboard or finishing machine |
FR20065685 | 2006-10-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007051395A1 true DE102007051395A1 (en) | 2008-05-08 |
Family
ID=37232291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007051395A Withdrawn DE102007051395A1 (en) | 2006-10-30 | 2007-10-25 | Variable-flexibility roller for paper or cardboard finishing machines, has pressure accumulator, which has membrane, bubble or piston, with which pressure chamber is divided into two chambers |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT504421A3 (en) |
DE (1) | DE102007051395A1 (en) |
FI (1) | FI122329B (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010002503A1 (en) | 2010-03-02 | 2011-09-08 | Voith Patent Gmbh | Roller for a paper or board machine and method for damping vibrations of a roller |
CN102182099A (en) * | 2009-12-18 | 2011-09-14 | 美卓造纸机械公司 | Controlled deflection roll for e.g. fiber web production machine, has pressure accumulators connected with loading shoe, and valves i.e. seat valves, connected with loading shoe for controlling pressure accumulators |
EP2423382A1 (en) | 2010-08-26 | 2012-02-29 | Voith Patent GmbH | Device and method for reducing vibrations on a controlled deflection roll |
EP2423383A1 (en) | 2010-08-24 | 2012-02-29 | Voith Patent GmbH | Roller for a paper and/or carton machine |
EP2426256A1 (en) | 2010-09-02 | 2012-03-07 | Voith Patent GmbH | Deflection compensating roll for a paper and/or paperboard machine |
DE102011004833A1 (en) | 2011-02-28 | 2012-08-30 | Voith Patent Gmbh | Roller for use in paper or paperboard machine, has pressure chamber that is connected with pressure fluid supply conduit through orifice which is movable in parallel to pressure fluid flow direction |
EP2503056A1 (en) | 2011-03-23 | 2012-09-26 | Voith Patent GmbH | Controlled deflection roll with vibration absorber |
CN102753755A (en) * | 2010-02-05 | 2012-10-24 | 美卓造纸机械公司 | Deflection adjustable roll and system |
DE102014212748A1 (en) * | 2014-07-01 | 2016-01-07 | Carl Zeiss Industrielle Messtechnik Gmbh | Bearing assembly for a linear fluid bearing guide of a coordinate measuring machine and coordinate measuring machine |
-
2006
- 2006-10-30 FI FI20065685A patent/FI122329B/en not_active IP Right Cessation
-
2007
- 2007-10-25 DE DE102007051395A patent/DE102007051395A1/en not_active Withdrawn
- 2007-10-29 AT AT0174807A patent/AT504421A3/en not_active Application Discontinuation
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102182099A (en) * | 2009-12-18 | 2011-09-14 | 美卓造纸机械公司 | Controlled deflection roll for e.g. fiber web production machine, has pressure accumulators connected with loading shoe, and valves i.e. seat valves, connected with loading shoe for controlling pressure accumulators |
CN102182099B (en) * | 2009-12-18 | 2014-12-31 | 维美德技术有限公司 | Controlled deflection roll, vibration performance adjustment method of controlled deflection roll, and method for equiping pressure accumulators of controlled deflection roll |
AT509270B1 (en) * | 2009-12-18 | 2013-09-15 | Metso Paper Inc | Deflection A FIBER WEB PRODUCTION MACHINE OR A FIBER WEB TREATMENT MACHINE, METHOD FOR CONTROLLING THE VIBRATION CHARACTERISTICS OF A deflection A FIBER WEB PRODUCTION MACHINE OR A FIBER WEB TREATMENT MACHINE AND METHOD FOR FINISHING A deflection A FIBER WEB PRODUCTION MACHINE OR FIBER TRAIN FINISHING MACHINE WITH A pressure accumulator |
AT509270A3 (en) * | 2009-12-18 | 2012-09-15 | Metso Paper Inc | Deflection A FIBER WEB PRODUCTION MACHINE OR A FIBER WEB TREATMENT MACHINE, METHOD FOR CONTROLLING THE VIBRATION CHARACTERISTICS OF A deflection A FIBER WEB PRODUCTION MACHINE OR A FIBER WEB TREATMENT MACHINE AND METHOD FOR FINISHING A deflection A FIBER WEB PRODUCTION MACHINE OR FIBER TRAIN FINISHING MACHINE WITH A pressure accumulator |
CN102753755A (en) * | 2010-02-05 | 2012-10-24 | 美卓造纸机械公司 | Deflection adjustable roll and system |
EP2366911A1 (en) | 2010-03-02 | 2011-09-21 | Voith Patent GmbH | Roller for a paper and/or carton machine and method for dampening oscillation of a roller |
DE102010002503A1 (en) | 2010-03-02 | 2011-09-08 | Voith Patent Gmbh | Roller for a paper or board machine and method for damping vibrations of a roller |
EP2423383A1 (en) | 2010-08-24 | 2012-02-29 | Voith Patent GmbH | Roller for a paper and/or carton machine |
DE102010039658A1 (en) | 2010-08-24 | 2012-03-01 | Voith Patent Gmbh | Roller for a paper or board machine |
CN102373646A (en) * | 2010-08-24 | 2012-03-14 | 沃依特专利有限责任公司 | Roller for a paper and/or carton machine |
EP2423382A1 (en) | 2010-08-26 | 2012-02-29 | Voith Patent GmbH | Device and method for reducing vibrations on a controlled deflection roll |
DE102010039795A1 (en) | 2010-08-26 | 2012-03-01 | Voith Patent Gmbh | Apparatus and method for reducing vibration on a bending roll |
DE102010040149A1 (en) | 2010-09-02 | 2012-03-08 | Voith Patent Gmbh | Roller for a paper or board machine |
EP2426256A1 (en) | 2010-09-02 | 2012-03-07 | Voith Patent GmbH | Deflection compensating roll for a paper and/or paperboard machine |
DE102011004833A1 (en) | 2011-02-28 | 2012-08-30 | Voith Patent Gmbh | Roller for use in paper or paperboard machine, has pressure chamber that is connected with pressure fluid supply conduit through orifice which is movable in parallel to pressure fluid flow direction |
DE102011005922A1 (en) | 2011-03-23 | 2012-09-27 | Voith Patent Gmbh | Bend compensation roll with vibration absorber |
EP2503056A1 (en) | 2011-03-23 | 2012-09-26 | Voith Patent GmbH | Controlled deflection roll with vibration absorber |
DE102014212748A1 (en) * | 2014-07-01 | 2016-01-07 | Carl Zeiss Industrielle Messtechnik Gmbh | Bearing assembly for a linear fluid bearing guide of a coordinate measuring machine and coordinate measuring machine |
EP3164666B1 (en) * | 2014-07-01 | 2018-08-15 | Carl Zeiss Industrielle Messtechnik GmbH | Coordinate measuring device |
Also Published As
Publication number | Publication date |
---|---|
FI122329B (en) | 2011-12-15 |
FI20065685A0 (en) | 2006-10-30 |
AT504421A2 (en) | 2008-05-15 |
FI20065685A (en) | 2008-05-01 |
AT504421A3 (en) | 2009-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R082 | Change of representative |
Representative=s name: LORENZ & KOLLEGEN PATENTANWAELTE PARTNERSCHAFT, DE |
|
R081 | Change of applicant/patentee |
Owner name: VALMET TECHNOLOGIES, INC., FI Free format text: FORMER OWNER: METSO PAPER, INC., HELSINKI, FI Effective date: 20140606 |
|
R082 | Change of representative |
Representative=s name: LORENZ & KOLLEGEN PATENTANWAELTE PARTNERSCHAFT, DE Effective date: 20140606 |
|
R012 | Request for examination validly filed | ||
R012 | Request for examination validly filed |
Effective date: 20140816 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |