EP0498045B1 - Device for roll height adjustment - Google Patents
Device for roll height adjustment Download PDFInfo
- Publication number
- EP0498045B1 EP0498045B1 EP91119201A EP91119201A EP0498045B1 EP 0498045 B1 EP0498045 B1 EP 0498045B1 EP 91119201 A EP91119201 A EP 91119201A EP 91119201 A EP91119201 A EP 91119201A EP 0498045 B1 EP0498045 B1 EP 0498045B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- nut
- face
- toothing
- threaded spindle
- 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
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/002—Opening or closing mechanisms; Regulating the pressure
Definitions
- the invention relates to a device for height adjustment of rollers, in particular rollers arranged one above the other in supercalenders and smoothing units, according to the preamble of claim 1.
- the nut has a toothing on its circumference, which can optionally be brought into engagement with a gearwheel which can be rotated counter to the hanging spindle. If this intervention exists, the nut is turned in synchronization with the hanging spindle.
- the bearing housing therefore maintains its altitude. If the gearwheel is disengaged from the toothing of the nut by axial displacement, the nut does not rotate when the suspension spindle rotates, so that it performs a vertical movement together with the bearing housing.
- a gap adjustment device described in DE-OS 18 11 214 consists of hydraulic or mechanical coupling elements arranged between two successive roller bearing housings, which automatically adjust to the center distance when the rollers move together by locking means and extend automatically by the amount of the adjustable gap height when the rollers are raised .
- the implementation of this proposal is associated with increased effort.
- the invention has for its object to provide an uncomplicated device for height adjustment of rollers arranged one above the other, which allows the roller distances to be increased simply and quickly and to restore them even after changing a roller with a different diameter.
- the object was achieved by the device described in claim 1, the subclaims containing special embodiments.
- the device which consists of a few parts, ensures that it is quick and easy Increasing the roller spacing in that when lowering the lifting units assigned to the bottom roller or lifting the threaded spindles via the corresponding lifting units, the rollers lying above the roller spacing to be increased are blocked in their movement along the threaded spindles in the direction of the weight force and the ones below, if necessary , released. This can be achieved via the contact piece that determines the minimum distance between the nut and the housing. If the minimum distance allows the gears to mesh, this prevents movement in the corresponding direction.
- the original roller spacing is achieved even after the installation of a roller which differs in diameter in that the rollers are raised via the lifting units of the lowest roller or lowered via the threaded spindles, the position of the switching element making it possible for the teeth to mesh.
- the associated blocking of the movement of the rollers occurs when the lifting units of the bottom roller are slightly lowered after reaching a certain height or the threaded spindles are raised slightly.
- Both exemplary embodiments have in common that the rollers 1 arranged one above the other are mounted in bearing housings 2, which are connected to the roller frame 5 so as to be displaceable in height by means of a guide slide 3 and a sliding guide 4.
- bearing housings 2 which are connected to the roller frame 5 so as to be displaceable in height by means of a guide slide 3 and a sliding guide 4.
- each guide carriage 3 and the roller frame 5 via a threaded spindle 7 with nut 8 without self-locking as well as a housing 9 enclosing the nut 8 and partially the threaded spindle 7 and axially displaceable thereon.
- the latter has a toothing 11 on the end face 10 which is opposite to the axial displacement direction 12 of the nut 8 when loaded by the roller weight.
- the housing 9 also has a toothing 13 and a movable contact piece 14 on the inner surface opposite the toothed end face 10 of the nut 8.
- This contact piece 14 defines the minimum distance between the nut 8 and the housing 9 and can take the form of a ring arranged around the threaded spindle 7 and displaceable thereon.
- the switching piece 14 should be rotated with the aid of a conventional adjusting device around the threaded spindle 7 in a defined manner and the relevant inner surface of the housing 9 and the opposite end face 15 of the annular switching element 14 should be designed in such a way that the switching element 14 can be rotated into one of the surrounding side surfaces of the housing 9 protruding height can be brought, which is on the one hand to release the rotational movement of the nut 8 at least as large as the protruding teeth 11 and 13 of the end face 10 of the nut 8 and the inner surface of the housing 9 together or on the other hand the meshing of the teeth 11 and 13 and so that the locking of the nut 8 allows under load in the direction of the weight of the rollers 1. This presupposes that the distance between the two end faces 10 of the nut 8 and the inner faces of the housing
- a controllable lifting element 16 is located below the pivot point between the bearing housing 2 and the guide carriage 3.
- Characteristic of the embodiment shown in Fig. 1 is that the Guide carriage 3 are firmly connected to the corresponding housing 9 and the nuts 8 are each arranged together on a threaded spindle 7 fastened to the roller frame 5.
- the height adjustment of the rollers 1 can thus take place via a lifting unit 6 assigned to the bearing housings 2 of the lowermost roller 1, or a lifting unit 6 ′ which effects the height displacement of the threaded spindles 7.
- the guide carriage 3 with the corresponding threaded spindle 7 and the housing 9 are pivotally connected to the roller frame 5.
- a bearing unit 6 is assigned to each of the bearing housings 2 of the lowermost roller 1.
Landscapes
- Rolling Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Paper (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zur Höhenverstellung von Walzen, insbesondere übereinander angeordneten Walzen in Superkalandern und Glättwerken, nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for height adjustment of rollers, in particular rollers arranged one above the other in supercalenders and smoothing units, according to the preamble of
Dabei ist es beispielsweise notwendig, möglichst schnell vor dem Ausbau einer beschädigten Walze den Abstand zu den benachbarten Walzen zu vergrößern und nach dem Einbau einer mitunter auch im Durchmesser von der ausgebauten abweichenden Walze einen vorgegebenen Walzenabstand zu erreichen. Häufig kommen hierfür beidseitig angeordnete Hängespindeln zur Anwendung, die zur Einstellung des Walzenabstandes Stellmuttern aufweisen.It is necessary, for example, to increase the distance to the adjacent rollers as quickly as possible before removing a damaged roller and to achieve a predetermined roller distance after installing a roller which sometimes deviates in diameter from the removed roller. Hanging spindles arranged on both sides are often used for this purpose, which have adjusting nuts for adjusting the roller spacing.
Bei einer bekannten Vorrichtung der eingangs beschriebenen Art (DE 37 13 561 C2) trägt die Mutter an ihrem Umfang eine Verzahnung, die wahlweise mit einem entgegengesetzt zur Hängespindel drehbaren Zahnrad in Eingriff gebracht werden kann. Besteht dieser Eingriff, wird die Mutter im Gleichlauf mit der Hängespindel gedreht. Das Lagergehäuse behält daher seine Höhenlage. Wird das Zahnrad durch Axialverschiebung außer Eingriff mit der Verzahnung der Mutter gebracht, erfolgt bei einer Drehung der Hängespindel keine Drehung der Mutter, so daß diese zusammen mit dem Lagergehäuse eine Vertikalbewegung durchführt.In a known device of the type described in the introduction (DE 37 13 561 C2), the nut has a toothing on its circumference, which can optionally be brought into engagement with a gearwheel which can be rotated counter to the hanging spindle. If this intervention exists, the nut is turned in synchronization with the hanging spindle. The bearing housing therefore maintains its altitude. If the gearwheel is disengaged from the toothing of the nut by axial displacement, the nut does not rotate when the suspension spindle rotates, so that it performs a vertical movement together with the bearing housing.
Eine in der DE-OS 18 11 214 beschriebene Spalteinstelleinrichtung besteht aus zwischen je zwei aufeinanderfolgenden Walzenlagergehäusen angeordneten hydraulischen oder mechanischen Kuppelelementen, die sich beim Zusammenfahren der Walzen durch Sperrmittel selbsttätig auf den Achsabstand einstellen und beim Anheben der Walzen selbsttätig um das Maß der einstellbaren Spalthöhe verlängern. Allerdings ist die Realisierung dieses Vorschlages mit einem erhöhten Aufwand verbunden.A gap adjustment device described in DE-OS 18 11 214 consists of hydraulic or mechanical coupling elements arranged between two successive roller bearing housings, which automatically adjust to the center distance when the rollers move together by locking means and extend automatically by the amount of the adjustable gap height when the rollers are raised . However, the implementation of this proposal is associated with increased effort.
Der Erfindung die Aufgabe zugrunde, eine unkomplizierte Vorrichtung zur Höhenverstellung von übereinander angeordneten Walzen zu schaffen, die es erlaubt, die Walzenabstände einfach und schnell zu vergrößern sowie selbst nach dem Wechsel einer sich im Durchmesser unterscheidenden Walze wieder herzustellen.The invention has for its object to provide an uncomplicated device for height adjustment of rollers arranged one above the other, which allows the roller distances to be increased simply and quickly and to restore them even after changing a roller with a different diameter.
Erfindungsgemäß wurde die Aufgabe durch die im Anspruch 1 beschriebene Vorrichtung gelöst, wobei die Unteransprüche besondere Ausführungsarten enthalten. Dabei gewährleistet die aus wenigen Teilen bestehende Vorrichtung das schnelle und einfache Vergrößern des Walzenabstandes dadurch, daß beim Absenken der der untersten Walze zugeordneten Hubeinheiten oder dem Anheben der Gewindespindeln über die entsprechenden Hubeinheiten die oberhalb des zu vergrößernden Walzenabstandes liegenden Walzen in ihrer Bewegung entlang der Gewindespindeln in Richtung der Gewichtskraft gesperrt und die darunterliegenden, soweit es erforderlich ist, freigegeben werden. Dies ist über das den minimalen Abstand zwischen Mutter und Gehäuse bestimmende Schaltstück erreichbar. Ermöglicht der minimale Abstand das Ineinandergreifen der Verzahnungen, so wird eine Bewegung in der entsprechenden Richtung verhindert.According to the invention the object was achieved by the device described in
Der ursprüngliche Walzenabstand wird auch nach dem Einbau einer sich im Durchmesser unterscheidenden Walze dadurch erreicht, daß die Walzen über die Hubeinheiten der untersten Walze angehoben oder über die Gewindespindeln abgesenkt werden, wobei die Stellung des Schaltstückes das Ineinandergreifen der Verzahnungen ermöglicht. Zur damit verbundenen Sperrung der Bewegung der Walzen kommt es, wenn die Hubeinheiten der untersten Walze nach Erreichen einer bestimmten Höhe geringfügig abgesenkt oder die Gewindespindeln geringfügig angehoben werden.The original roller spacing is achieved even after the installation of a roller which differs in diameter in that the rollers are raised via the lifting units of the lowest roller or lowered via the threaded spindles, the position of the switching element making it possible for the teeth to mesh. The associated blocking of the movement of the rollers occurs when the lifting units of the bottom roller are slightly lowered after reaching a certain height or the threaded spindles are raised slightly.
Nachfolgend soll die Erfindung an zwei Ausführungsbeispielen näher erläutert werden. In der beigefügten Zeichnung zeigen:
- Fig. 1
- eine Seitenansicht des Walzengestells mit einer Ausführungsform der Vorrichtung,
- Fig. 2
- eine Schnittdarstellung einer anderen Ausführungsform und
- Fig. 3
- einen Teilschnitt des
Schaltstückes 14.
- Fig. 1
- a side view of the roller frame with an embodiment of the device,
- Fig. 2
- a sectional view of another embodiment and
- Fig. 3
- a partial section of the switching piece 14th
Beiden Ausführungsbeispielen ist gemeinsam, daß die übereinander angeordneten Walzen 1 in Lagergehäusen 2 gelagert sind, die über je einen Führungsschlitten 3 sowie eine Gleitführung 4 in der Höhe verschiebbar mit dem Walzengestell 5 verbunden sind. Zusätzlich kann an den Lagergehäusen 2 der obersten Walze 1 je ein in Richtung der Gewichtskraft der Walzen 1 wirkendes und an dem Walzengestell 5 befestigtes Hubelement 17 angreifen.Both exemplary embodiments have in common that the
Wichtig ist dabei, daß die Verbindung zwischen jedem Führungsschlitten 3 und dem Walzengestell 5 über eine Gewindespindel 7 mit Mutter 8 ohne Selbsthemmung sowie ein die Mutter 8 und teilweise die Gewindespindel 7 umschließendes und darauf axial verschiebbares Gehäuse 9 erfolgt. Zur Verhinderung einer Drehbewegung der Mutter 8 bei Belastung in Richtung der Walzengewichte besitzt diese an der Stirnfläche 10 eine Verzahnung 11, die entgegen der axialen Verschieberichtung 12 der Mutter 8 bei Belastung durch das Walzengewicht liegt. Das Gehäuse 9 weist dabei an der Innenfläche gegenüber der verzahnten Stirnfläche 10 der Mutter 8 ebenfalls eine Verzahnung 13 und ein bewegbares Schaltstück 14 auf. Dieses Schaltstück 14 legt den minimalen Abstand zwischen der Mutter 8 und dem Gehäuse 9 fest und kann die Form eines um die Gewindespindel 7 angeordneten und darauf verschiebbaren Ringes haben. Dabei sollte das Schaltstück 14 mit Hilfe einer üblichen Verstelleinrichtung um die Gewindespindel 7 definiert drehbar und die betreffende Innenfläche des Gehäuses 9 sowie die gegenüberliegende Stirnflache 15 des ringförmigen Schaltstückes 14 derart gestaltet sein, daß das Schaltstück 14 durch Drehung in eine über die umgebende Seitenfläche des Gehäuses 9 überstehende Höhe gebracht werden kann, die einerseits zur Freigabe der Drehbewegung der Mutter 8 mindestens so groß wie die überstehenden Verzahnungen 11 und 13 der Stirnfläche 10 der Mutter 8 und der Innenfläche des Gehäuses 9 zusammen ist oder andererseits das Ineinandergreifen der Verzahnungen 11 und 13 und damit die Sperrung der Mutter 8 bei Belastung in Richtung der Gewichtskraft der Walzen 1 ermöglicht. Dies setzt voraus, daß der Abstand zwischen beiden Stirnflächen 10 der Mutter 8 und den Innenflächen des Gehäuses 9 mindestens der überstehenden Höhe beider Verzahnungen 11 und 13 zusammen entspricht.It is important that the connection between each
Zur Justierung der an die Führungsschlitten 3 angelenkten Lagergehäuse 2 befinden sich unterhalb des Drehpunktes zwischen dem Lagergehäuse 2 und dem Führungsschlitten 3 jeweils ein steuerbares Hubelement 16.To adjust the bearing
Kennzeichnend für das in Fig. 1 dargestellte Ausführungsbeispiel ist, daß die Führungsschlitten 3 mit dem entsprechenden Gehäuse 9 fest verbunden sind und die Muttern 8 jeweils gemeinsam auf einer am Walzengestell 5 befestigten Gewindespindel 7 angeordnet sind. Die Höhenverstellung der Walzen 1 kann somit über eine den Lagergehäusen 2 der untersten Walze 1 zugeordnete Hubeinheit 6 oder je eine die Höhenverschiebung der Gewindespindeln 7 bewirkende Hubeinheit 6' erfolgen. Bei dem in Fig. 2 dargestellten Ausführungsbeispiel sind die Führungsschlitten 3 mit der entsprechenden Gewindespindel 7 sowie das Gehäuse 9 mit dem Walzengestell 5 schwenkbar verbunden. Den Lagergehäusen 2 der untersten Walze 1 ist dabei je eine Hubeinheit 6 zugeordnet.Characteristic of the embodiment shown in Fig. 1 is that the
Claims (7)
- Device for the vertical adjustment of rolls (1) arranged one above the other, the rolls (1) being supported in bearing housings (2) which are each connected in a vertically displaceable manner to the roll frame (5) via a guide block (3) and a slideway (4), the connection between each guide block (3) and the roll frame (5) being effected via a threaded spindle (7) with a nut (8) and a housing (9) which surrounds the nut (8) and partially surrounds the threaded spindle (7) and is axially displaceable thereon, and the nut (8) being provided with toothing (11), characterised in that the nut (8) is not self-locking and carries the toothing on the end face (10) lying opposite to the axial direction (12) of displacement of the nut (8) when load is applied by the weight of the roll, that the housing (9) is provided on the inner face opposite the toothed end face (10) of the nut (8) with toothing (13) and a movable switching piece (14) which determines the minimum spacing between the nut (8) and the housing (9), and that the spacings between the two end faces (10) of the nut (8) and the respective opposing inner face of the housing (9) together correspond at least to the projecting height of the two toothing portions (11, 13).
- Device according to claim 1, characterised in that the guide blocks (3) are fixedly connected to the corresponding housing (9) and the nuts (8) are arranged together on a threaded spindle (7).
- Device according to claim 1 or claim 2, characterised in that the threaded spindles (7) are secured to the roll frame (5) and a lifting unit (6) is associated with each of the bearing housings (2) of the lowermost roll (1).
- Device according to claim 1 or claim 2, characterised in that the threaded spindles (7) are each secured in a vertically displaceable manner to the roll frame (5) by means of a lifting unit (6').
- Device according to claim 1, characterised in that the guide blocks (3) are pivotably connected to the corresponding threaded spindle (7) and the housing (9) is pivotably connected to the roll frame (5) and a lifting unit (6) is associated with each of the bearing housings (2) of the lowermost roll (1).
- Device according to one of claims 1 to 5, characterised in that the switching piece (14) is in the form of a ring arranged around the threaded spindle (7), is displaceable thereon and can pivot in a defined manner about the threaded spindle (7) with the aid of an adjusting means, and the relevant inner face of the housing (9) and the opposing end face (15) of the annular switching piece (14) are designed in such a manner that the switching piece (14) can be brought by rotation to a level projecting beyond the surrounding side face of the housing (9), this level, on the one hand, being at least as high as the projecting toothing portions (11, 13) of the end face (10) of the nut (8) and the inner face of the housing (9) together and thus preventing engagement of the toothing portions (11 and 13) or, on the other hand, allowing for this engagement.
- Device according to one of claims 1 to 6, characterised in that the bearing housings (2) are hinged on to the guide blocks (3) and in each case a controllable lifting element (16) is situated below the pivot point between the bearing housing (2) and the guide block (3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4103620 | 1991-02-07 | ||
DE4103620A DE4103620C1 (en) | 1991-02-07 | 1991-02-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0498045A1 EP0498045A1 (en) | 1992-08-12 |
EP0498045B1 true EP0498045B1 (en) | 1995-05-10 |
Family
ID=6424512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91119201A Expired - Lifetime EP0498045B1 (en) | 1991-02-07 | 1991-11-12 | Device for roll height adjustment |
Country Status (6)
Country | Link |
---|---|
US (1) | US5231924A (en) |
EP (1) | EP0498045B1 (en) |
JP (1) | JPH04316695A (en) |
CA (1) | CA2060752A1 (en) |
DE (2) | DE4103620C1 (en) |
FI (1) | FI94268C (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19820087B4 (en) * | 1998-05-06 | 2005-06-23 | Eduard Küsters Maschinenfabrik GmbH & Co. KG | Calender for the treatment of a web |
US6612228B1 (en) * | 2000-07-14 | 2003-09-02 | Metso Paper, Inc. | Calender and method for rebuilding a calender |
DE10041887C1 (en) * | 2000-08-25 | 2001-09-20 | Voith Paper Patent Gmbh | Exchange of an intermediate roller in an angled stack of calender rollers lowers the set under it by a structured value to give room for maneuver to swing out the old roller and install the replacement |
DE10249948A1 (en) * | 2002-10-26 | 2004-05-13 | Voith Paper Patent Gmbh | roll arrangement |
GB2404926B (en) * | 2003-08-09 | 2005-12-28 | Voith Paper Ltd | Calender nip adjustment mechanism |
ES1076731Y (en) * | 2011-11-24 | 2012-07-17 | Jose Borrell Sa | DEVICE OF REGULATION AND POSITIONAL ADJUSTMENT OF THE RULES OF PELADORAS MACHINES AND REPELLERS OF ALMONDS AND FRUIT ANALOGS |
CN105544279B (en) * | 2016-02-04 | 2017-04-26 | 淄博泰鼎机械科技有限公司 | Super calender |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1461206A1 (en) * | 1964-10-16 | 1969-03-13 | Eck & Soehne | calender |
GB1291086A (en) * | 1968-11-27 | 1972-09-27 | Kleinewefers Soehne J | Means for setting a roll gap |
DE2316745C3 (en) * | 1973-04-04 | 1981-05-27 | Kleinewefers Gmbh, 4150 Krefeld | Device for adjusting the nip of rolls of a calender arranged one above the other |
DE2410305A1 (en) * | 1974-03-05 | 1975-09-18 | Kleinewefers Ind Co Gmbh | CALENDERS, IN PARTICULAR PAPER CALENDERS, WITH SEVERAL ADJUSTABLE ROLLS, ARRANGED ON TOP OF OTHER |
DE2415836C3 (en) * | 1974-04-02 | 1982-06-16 | Kleinewefers Gmbh, 4150 Krefeld | Device for defining the nips when separating the rolls of a calender |
DE2423504A1 (en) * | 1974-05-15 | 1975-11-27 | Kleinewefers Ind Co Gmbh | CALENDERS, IN PARTICULAR FOR PROCESSING PAPER Web |
DE3711334A1 (en) * | 1987-04-03 | 1988-10-13 | Escher Wyss Gmbh | DEVICE FOR GUIDING THE ROLLS OF AN ESSENTIAL VERTICAL CALANDER |
DE3713561A1 (en) * | 1987-04-23 | 1988-11-10 | Escher Wyss Gmbh | CALENDAR WITH NIPRELIEVING |
FI81633C (en) * | 1988-01-13 | 1990-11-12 | Valmet Paper Machinery Inc | ADJUSTMENT OF SUPPLY AND SUPER CALENDAR. |
FI83346C (en) * | 1989-01-27 | 1991-06-25 | Valmet Paper Machinery Inc | CALENDAR, SAERSKILT EN SUPERKALANDER. |
-
1991
- 1991-02-07 DE DE4103620A patent/DE4103620C1/de not_active Expired - Fee Related
- 1991-11-12 EP EP91119201A patent/EP0498045B1/en not_active Expired - Lifetime
- 1991-11-12 DE DE59105455T patent/DE59105455D1/en not_active Expired - Fee Related
-
1992
- 1992-01-28 FI FI920375A patent/FI94268C/en not_active IP Right Cessation
- 1992-02-05 US US07/831,714 patent/US5231924A/en not_active Expired - Fee Related
- 1992-02-05 JP JP4019907A patent/JPH04316695A/en active Pending
- 1992-02-06 CA CA002060752A patent/CA2060752A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE59105455D1 (en) | 1995-06-14 |
US5231924A (en) | 1993-08-03 |
CA2060752A1 (en) | 1992-08-08 |
FI920375A0 (en) | 1992-01-28 |
FI94268C (en) | 1995-08-10 |
FI920375A (en) | 1992-08-08 |
DE4103620C1 (en) | 1992-02-27 |
JPH04316695A (en) | 1992-11-09 |
EP0498045A1 (en) | 1992-08-12 |
FI94268B (en) | 1995-04-28 |
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