EP1322474B1 - Bearing for a cylinder or drum in a printing machine - Google Patents

Bearing for a cylinder or drum in a printing machine Download PDF

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Publication number
EP1322474B1
EP1322474B1 EP01969613A EP01969613A EP1322474B1 EP 1322474 B1 EP1322474 B1 EP 1322474B1 EP 01969613 A EP01969613 A EP 01969613A EP 01969613 A EP01969613 A EP 01969613A EP 1322474 B1 EP1322474 B1 EP 1322474B1
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EP
European Patent Office
Prior art keywords
bearing
housing
side wall
arrangement according
supporting
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
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EP01969613A
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German (de)
French (fr)
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EP1322474A1 (en
Inventor
Thomas Dittenhöfer
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IHO Holding GmbH and Co KG
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Schaeffler KG
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Publication of EP1322474A1 publication Critical patent/EP1322474A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B41F13/30—Bearings mounted on sliding supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings

Definitions

  • the invention relates to a bearing for pins of cylinders or drums in printing machines, wherein the pin is received in at least one arranged in a bore of a side wall bearings.
  • Such bearings are already previously known in a variety of embodiments.
  • a storage for a cylinder of printing presses described in which a cylinder pin is received in a fixed bearing in a bore.
  • the pin is received by a one-piece inner ring, which forms the inner race for multi-row cylindrical rolling elements.
  • An associated outer ring which is fixed in a housing, forms the outer raceway for the rolling elements.
  • Such bearings for cylinders or drums of printing presses are often designed as eccentric bearings.
  • Such a bearing which has the features of the preamble of claim 1, goes out of DE 41 26 545 C2 out.
  • the Dreiringnach described therein consists of a connected to a pin of a blanket cylinder inner bearing ring of the inner bearing, which is provided with a pin concentric outer raceway.
  • the three-ring bearing further has in a bearing housing on an outer bearing ring of an outer bearing, with one to the bore of the bearing housing is provided concentric inner raceway.
  • a raceway for the inner bearing and the outer bearing bearing one-piece eccentric intermediate ring is provided, which is pivotable by lying outside of the bearing housing actuating means in the circumferential direction.
  • radial bearing rows are provided in the form of cylindrical roller bearing rows between the pin connected to the inner bearing ring and the eccentric intermediate ring on the one hand and between the outer bearing ring and the eccentric intermediate ring on the other hand, in addition to a cylindrical roller bearing row at least one axial end thrust bearing rows, z.
  • ball bearing rows or funnelrollenaxiallager in the inner bearing or ball bearing rows in the outer bearing for separate recording of axial forces are arranged.
  • Such eccentric bearings can be used particularly advantageously in the printing industry whenever a plurality of printing cylinders are juxtaposed with their lateral surfaces touching. Due to the adjustable eccentricity of the individual bearings, the cylinders can be set exactly to each other, so z. B. tolerances are compensated in a simple manner.
  • the invention is therefore based on the object to avoid the disadvantages and a rolling bearing for the pins of cylinders or to provide drums in printing presses, which easily has an improved flexural rigidity.
  • this object is achieved according to the characterizing part of claim 1, characterized in that in the bore of the side wall a bearing bush is received in the through-bore bearing a first support bearing is arranged spaced from the axially spaced outside the bearing bore a second radially adjustable support bearing is, wherein the second support bearing is received by a housing which is releasably connected to the side wall and thus slidably connected thereto.
  • the housing is connected at two opposite circumferential locations, each with a bolt which is received in each case by a bearing block, which with fastening screws on the side wall is held, wherein according to claim 3, the diameter of the fastening screws is smaller than the diameter of the associated holes in the bearing block.
  • a further feature of the invention according to claim 4 shows that on at least one of the bearing blocks, a screw is arranged to be acted upon by a displacement force, wherein the adjusting screw is held in a receiving part which is held by fastening screws on the side wall. If only one of the bearing blocks is acted upon by the adjusting screw, the bearing is displaced virtually around a pivot point which is formed by the other bearing block. If, on the other hand, both bearing blocks are subjected to a displacement force, then the second support bearing in its entirety is displaced uniformly on both sides.
  • the second support bearing according to claim 5 is to be included in the housing on one side of a radially inwardly facing flange, which is connected via fastening screws with this. From claim 6 shows that the bearing bush has a radially outwardly facing flange with through holes are guided by the fixing screws for fixing to the side wall. According to another additional feature according to claim 7, the second support bearing should be formed as a multi-row cylindrical roller bearing.
  • the sealing of the bearing according to the invention is described, wherein according to claim 8 between the bearing bush and housing and according to claim 9 in the region of the flange of the housing per a seal should be arranged.
  • the first support bearing should also be formed as a multi-row cylindrical roller bearing, which may be an eccentric bearing according to claim 11.
  • the first support bearing is according to claim 12 on the Pin held by a lock nut and has according to claim 13 also has a seal.
  • the in FIG. 1 shown printing cylinder 1 has the multi-stepped pin 2, which is held on the first support bearing 3 and the axially spaced second support bearing 4 in the side wall 5, so that it can rotate about its axis 6.
  • the first support bearing 3 is received in the continuous bearing bore 7 of the bearing bush 8, which has the radially outwardly facing flange 9 at the right-hand end, which is provided with through holes 10, so that the bearing bush 8 by means of fastening screws 11 in the bore 12th the side wall 5 is held.
  • the first support bearing 3 is formed as a three-row cylindrical roller bearing, roll its guided in cages 13 cylindrical rollers 14 on associated raceways, which are formed on the one hand by the inner ring 15 and on the other hand by the inner circumferential surface of the bearing bush 8.
  • the support bearing 3 is sealed on the left side by the seal 16 and held on the right side on its inner ring 15 with the lock nut 17 on the bearing pin 2, wherein the locking nut 17 can be fixed by the pin 18 on the pin 2 at the desired location is.
  • the support bearing 3 has an eccentrically formed bearing bush 8, the axis 19 is offset from the axis 6 of the pin 2.
  • the second support bearing 4 is axially spaced from the first support bearing 3 outside of the bearing bore 7 received in the housing 20, which is connected via its flange 21 by means of fastening screws 22 with the bearing outer ring 23.
  • second support bearing 4 further include the bearing inner ring 24 and guided in the cage 25 cylindrical rollers 26.
  • the sealing of the second support bearing 4 on the left side by the sliding seal 27, between the end faces of bearing bush 8 and the housing 20 on the bearing outer ring 23 is arranged sitting.
  • the seal also includes the sealing ring 28, which closes the gap formed between the flange 21 and pin 2.
  • the housing 20 is connected at two opposite circumferential locations, each with a pin 29 which is received in each case by a bearing block 30, which in turn is held on the side wall 5 via fastening screws 31.
  • the diameter of the fastening screws 31 is smaller than the diameter of the associated holes 32 in the bearing block 30.
  • the adjusting screw 33 is arranged, which is housed in the receiving part 34 which is connected via fastening screws 35 with the side wall 5.
  • the pivot point in or on the right side bearing block 30 is to be sought.
  • a further adjusting screw 33 on the right side via the bearing block 30.
  • a shim In the gap formed between the bearing block 30 and receiving part 24 after adjustment may optionally be inserted a shim.
  • the described support bearing concept can be used either on one side or on both sides of the printing cylinder 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rotary Presses (AREA)

Description

Anwendungsgebiet der ErfindungField of application of the invention

Die Erfindung betrifft eine Lagerung für Zapfen von Zylindern oder Trommeln in Druckmaschinen, wobei der Zapfen in wenigstens einem in einer Bohrung einer Seitenwand angeordneten Wälzlager aufgenommen ist.The invention relates to a bearing for pins of cylinders or drums in printing machines, wherein the pin is received in at least one arranged in a bore of a side wall bearings.

Hintergrund der ErfindungBackground of the invention

Derartige Lagerungen sind in einer Vielzahl von Ausführungsvarianten bereits vorbekannt. So ist beispielsweise in der DE 42 24 318 C2 eine Lagerung für einen Zylinder von Druckmaschinen beschrieben, bei der ein Zylinderzapfen in einem in einer Bohrung fixierten Lager aufgenommen ist. Der Zapfen ist von einem einstückigen Innenring aufgenommen, der die innere Laufbahn für mehrreihig angeordnete zylindrische Wälzkörper bildet. Ein zugehöriger Außenring, der in einem Gehäuse fixiert ist, bildet die äußere Laufbahn für die Wälzkörper.Such bearings are already previously known in a variety of embodiments. For example, in the DE 42 24 318 C2 a storage for a cylinder of printing presses described in which a cylinder pin is received in a fixed bearing in a bore. The pin is received by a one-piece inner ring, which forms the inner race for multi-row cylindrical rolling elements. An associated outer ring, which is fixed in a housing, forms the outer raceway for the rolling elements.

Derartige Lagerungen für Zylinder oder Trommeln von Druckmaschinen sind oftmals auch als Exzenterlager ausgebildet. Ein solches Lager, welches die Merkmale des Oberbegriff von Anspruch 1 aufweist, geht aus der DE 41 26 545 C2 hervor. Das dort beschriebene Dreiringwälzlager besteht aus einem mit einem Zapfen eines Gummituchzylinders verbundenen inneren Lagerring des Innenlagers, der mit einer zum Zapfen konzentrisch äußeren Laufbahn versehen ist. Das Dreiringwälzlager weist ferner in einem Lagergehäuse einen äußeren Lagerring eines äußeren Lagers auf, der mit einer zur Bohrung des Lagergehäuses konzentrischen inneren Laufbahn versehen ist. Zwischen innerem Lagerring und äußerem Lagerring ist ein die Laufbahn für das innere Lager und das äußere Lager tragender, einteiliger exzentrischer Zwischenring vorgesehen, der durch außerhalb des Lagergehäuses liegende Betätigungsmittel in Umfangsrichtung schwenkbar ist.Such bearings for cylinders or drums of printing presses are often designed as eccentric bearings. Such a bearing, which has the features of the preamble of claim 1, goes out of DE 41 26 545 C2 out. The Dreiringwälzlager described therein consists of a connected to a pin of a blanket cylinder inner bearing ring of the inner bearing, which is provided with a pin concentric outer raceway. The three-ring bearing further has in a bearing housing on an outer bearing ring of an outer bearing, with one to the bore of the bearing housing is provided concentric inner raceway. Between inner bearing ring and outer bearing ring, a raceway for the inner bearing and the outer bearing bearing, one-piece eccentric intermediate ring is provided, which is pivotable by lying outside of the bearing housing actuating means in the circumferential direction.

Zur radialen Abstützung sind zwischen dem mit dem Zapfen verbundenen inneren Lagerring und dem exzentrischen Zwischenring einerseits und zwischen dem äußeren Lagerring und dem exzentrischen Zwischenring andererseits Radiallagerreihen in Form von Zylinderrollenlagerreihen vorgesehen, wobei neben einer Zylinderrollenlagerreihe an mindestens einem axialen Ende Axiallagerreihen, z. B. Kugellagerreihen bzw. Kreuzrollenaxiallager im inneren Lager bzw. Kugellagerreihen im äußeren Lager zur getrennten Aufnahme von axialen Kräften angeordnet sind.For radial support radial bearing rows are provided in the form of cylindrical roller bearing rows between the pin connected to the inner bearing ring and the eccentric intermediate ring on the one hand and between the outer bearing ring and the eccentric intermediate ring on the other hand, in addition to a cylindrical roller bearing row at least one axial end thrust bearing rows, z. B. ball bearing rows or Kreuzrollenaxiallager in the inner bearing or ball bearing rows in the outer bearing for separate recording of axial forces are arranged.

Derartige Exzenterlager sind in der Druckindustrie immer dann besonders vorteilhaft einsetzbar, wenn mehrere Druckzylinder nebeneinander mit ihren Mantelflächen sich berührend angeordnet sind. Durch die einstellbare Exzentrizität der einzelnen Lagerungen lassen sich die Zylinder genau zueinander einstellen, so können z. B. in einfacher Weise Toleranzen ausgeglichen werden.Such eccentric bearings can be used particularly advantageously in the printing industry whenever a plurality of printing cylinders are juxtaposed with their lateral surfaces touching. Due to the adjustable eccentricity of the individual bearings, the cylinders can be set exactly to each other, so z. B. tolerances are compensated in a simple manner.

Nachteilig dabei ist, dass solche Lageranordnungen für Druckzylinder eine geringe Biegesteifigkeit aufweisen. Dies ist besonders dann gravierend, wenn lange Druckzylinder im Einsatz sind, weil sich die mangelnde Biegesteifigkeit negativ auf die Druckqualität auswirkt.The disadvantage here is that such bearing arrangements for printing cylinders have a low bending stiffness. This is particularly serious when long printing cylinders are in use, because the lack of flexural rigidity has a negative effect on the print quality.

Zusammenfassung der ErfindungSummary of the invention

Der Erfindung liegt deshalb die Aufgabe zu Grunde, die geschilderten Nachteile zu vermeiden und eine Wälzlagerung für die Zapfen von Zylindern oder Trommeln in Druckmaschinen bereitzustellen, die in einfacher Weise eine verbesserte Biegesteifigkeit aufweist.The invention is therefore based on the object to avoid the disadvantages and a rolling bearing for the pins of cylinders or to provide drums in printing presses, which easily has an improved flexural rigidity.

Erfingdungsgemäß wird diese Aufgabe nach dem kennzeichnenden Teil von Anspruch 1 dadurch gelöst, dass in der Bohrung der Seitenwand eine Lagerbuchse aufgenommen ist, in deren durchgehender Lagerbohrung ein erstes Stützlager angeordnet ist, von dem in axialer Richtung beabstandet außerhalb der Lagerbohrung ein zweites radial einstellbares Stützlager angeordnet ist, wobei das zweite Stützlager von einem Gehäuse aufgenommen ist, das mit der Seitenwand lösbar und damit gegenüber dieser verschiebbar verbunden ist.According to the invention, this object is achieved according to the characterizing part of claim 1, characterized in that in the bore of the side wall a bearing bush is received in the through-bore bearing a first support bearing is arranged spaced from the axially spaced outside the bearing bore a second radially adjustable support bearing is, wherein the second support bearing is received by a housing which is releasably connected to the side wall and thus slidably connected thereto.

Es liegt auf der Hand, dass schon allein durch die beiden axial voneinander beabstandeten Stützlager im Vergleich zu nur einem Stützlager eine wesentlich besser Biegesteifigkeit des mit dem Zapfen verbundenen Zylinders erreicht wird. Durch das radial einstellbare zweite Stützlager kann darüber hinaus auf den Druckzylinder ein Biegemoment aufgebracht werden, das zu einer gewünschten Vorbiegung führt. Auf diese Weise ist sichergestellt, dass im Zusammenwirken mit benachbart angeordneten Zylindern bei Betreiben der Druckmaschine eine weitgehend gerade Biegelinie erreicht werden kann. Damit wiederum ergeben sich konstante Druckkräfte über die gesamte Zylinderlänge, die sich positiv auf die Druckqualität, insbesondere bei hohen Drehzahlen der Zylinder, auswirken. Anders ausgedrückt, durch die radial einstellbare Stützlagerung wird eine Vorbiegung des Druckzylinders erreicht, die der Verformung während des Druckbetriebes durch Liniendruckkräfte beteiligter Zylinder entgegenwirkt.It is obvious that even by the two axially spaced support bearings compared to only one support bearing a much better flexural rigidity of the cylinder connected to the pin is achieved. In addition, due to the radially adjustable second support bearing, a bending moment can be applied to the impression cylinder, which leads to a desired pre-bend. In this way it is ensured that a largely straight bending line can be achieved in cooperation with adjacent cylinders when operating the printing press. This in turn results in constant compressive forces over the entire cylinder length, which have a positive effect on the print quality, especially at high speeds of rotation of the cylinder. In other words, by the radially adjustable support bearing a pre-bending of the printing cylinder is achieved, which counteracts the deformation during printing operation by line pressure forces involved cylinder.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen 2 bis 13 beschrieben.Advantageous developments of the invention are described in the subclaims 2 to 13.

So ist nach Anspruch 2 vorgesehen, dass das Gehäuse an zwei gegenüberliegenden Umfangsstellen mit je einem Bolzen verbunden ist, der jeweils von einem Lagerbock aufgenommen ist, der mit Befestigungsschrauben an der Seitenwand gehalten ist, wobei nach Anspruch 3 der Durchmesser der Befestigungsschrauben kleiner als der Durchmesser der zugehörigen Bohrungen im Lagerbock ist.Thus, it is provided according to claim 2, that the housing is connected at two opposite circumferential locations, each with a bolt which is received in each case by a bearing block, which with fastening screws on the side wall is held, wherein according to claim 3, the diameter of the fastening screws is smaller than the diameter of the associated holes in the bearing block.

Aus einem weiteren Merkmal der Erfindung gemäß Anspruch 4 geht hervor, dass über wenigstens einem der Lagerböcke eine Stellschraube zu dessen Beaufschlagung mit einer Verschiebekraft angeordnet ist, wobei die Stellschraube in einem Aufnahmeteil gehalten ist, das über Befestigungsschrauben an der Seitenwand gehalten ist. Wird nur einer der Lagerböcke mit der Stellschraube beaufschlagt, so verschiebt sich das Lager praktisch um einen Drehpunkt, der durch den anderen Lagerbock gebildet ist. Werden hingegen beide Lagerböcke mit einer Verschiebekraft beaufschlagt, so wird das zweite Stützlager in seiner Gesamtheit an beiden Seiten gleichmäßig verschoben.A further feature of the invention according to claim 4 shows that on at least one of the bearing blocks, a screw is arranged to be acted upon by a displacement force, wherein the adjusting screw is held in a receiving part which is held by fastening screws on the side wall. If only one of the bearing blocks is acted upon by the adjusting screw, the bearing is displaced virtually around a pivot point which is formed by the other bearing block. If, on the other hand, both bearing blocks are subjected to a displacement force, then the second support bearing in its entirety is displaced uniformly on both sides.

Weitere konstruktive Besonderheiten der Erfindung sind den nachfolgenden Ansprüchen entnehmbar. So soll das zweite Stützlager gemäß Anspruch 5 im Gehäuse an einer Seite von einem radial nach innen weisenden Flansch umfasst sein, der über Befestigungsschrauben mit diesem verbunden ist. Aus Anspruch 6 geht hervor, dass die Lagerbuchse einen radial nach außen weisenden Flansch mit durchgehenden Bohrungen aufweist, durch die Befestigungsschrauben zur Fixierung an der Seitenwand geführt sind. Nach einem anderen zusätzlichen Merkmal gemäß Anspruch 7 soll das zweite Stützlager als ein mehrreihiges Zylinderrollenlager ausgebildet sein.Other structural features of the invention are the following claims removed. Thus, the second support bearing according to claim 5 is to be included in the housing on one side of a radially inwardly facing flange, which is connected via fastening screws with this. From claim 6 shows that the bearing bush has a radially outwardly facing flange with through holes are guided by the fixing screws for fixing to the side wall. According to another additional feature according to claim 7, the second support bearing should be formed as a multi-row cylindrical roller bearing.

In den Ansprüchen 8 und 9 ist die Abdichtung der erfindungsgemäßen Lagerart beschrieben, wobei nach Anspruch 8 zwischen Lagerbuchse und Gehäuse und nach Anspruch 9 im Bereich des Flansches des Gehäuses je eine Dichtung angeordnet sein soll. Nach einem weiteren zusätzlichen Merkmal der Erfindung gemäß Anspruch 10 soll das erste Stützlager ebenfalls als ein mehrreihiges Zylinderrollenlager ausgebildet sein, das nach Anspruch 11 auch ein exzentrisches Lager sein kann. Das erste Stützlager ist gemäß Anspruch 12 auf dem Zapfen durch eine Sicherungsmutter gehalten und weist gemäß Anspruch 13 ebenfalls eine Dichtung auf.In the claims 8 and 9, the sealing of the bearing according to the invention is described, wherein according to claim 8 between the bearing bush and housing and according to claim 9 in the region of the flange of the housing per a seal should be arranged. According to a further additional feature of the invention according to claim 10, the first support bearing should also be formed as a multi-row cylindrical roller bearing, which may be an eccentric bearing according to claim 11. The first support bearing is according to claim 12 on the Pin held by a lock nut and has according to claim 13 also has a seal.

Die Erfindung wird an nachstehendem Ausführungsbeispiel näher beschrieben.The invention will be described in more detail in the following embodiment.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Es zeigen:

Figur 1
einen Axialschnitt entlang der Linie I-I in Figur 2 durch eine erfindungsgemäße Lageranordnung und
Figur 2
eine Seitenansicht auf die erfindungsgemäße Lageranordnung im Bereich des zweiten Stützlagers.
Show it:
FIG. 1
an axial section along the line II in FIG. 2 by a bearing arrangement according to the invention and
FIG. 2
a side view of the bearing assembly according to the invention in the region of the second support bearing.

Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings

Der in Figur 1 gezeigte Druckzylinder 1 weist den mehrfach abgestuften Zapfen 2 auf, der über das erste Stützlager 3 und das axial davon beabstandete zweite Stützlager 4 in der Seitenwand 5 gehalten ist, so dass dieser um seine Achse 6 rotieren kann. Das erste Stützlager 3 ist in der durchgehenden Lagerbohrung 7 der Lagerbuchse 8 aufgenommen, die am rechtsseitigen Ende den radial nach außen weisenden Flansch 9 besitzt, der mit durchgehenden Bohrungen 10 versehen ist, so dass die Lagerbuchse 8 mit Hilfe von Befestigungsschrauben 11 in der Bohrung 12 der Seitenwand 5 gehalten ist. Das erste Stützlager 3 ist als ein dreireihiges Zylinderrollenlager ausgebildet, dessen in Käfigen 13 geführte Zylinderrollen 14 auf zugehörigen Laufbahnen abwälzen, die einerseits vom Innenring 15 und andererseits von der inneren Mantelfläche der Lagerbuchse 8 gebildet sind. Das Stützlager 3 ist linksseitig durch die Dichtung 16 abgedichtet und rechtsseitig über seinen Innenring 15 mit der Sicherungsmutter 17 auf dem Lagerzapfen 2 gehalten, wobei die Sicherungsmutter 17 durch den Stift 18 auf dem Zapfen 2 an der gewünschten Stelle fixierbar ist. Wie aus Figur 2 ersichtlich, hat das Stützlager 3 eine exzentrisch ausgebildete Lagerbuchse 8, deren Achse 19 zur Achse 6 des Zapfens 2 versetzt ist.The in FIG. 1 shown printing cylinder 1 has the multi-stepped pin 2, which is held on the first support bearing 3 and the axially spaced second support bearing 4 in the side wall 5, so that it can rotate about its axis 6. The first support bearing 3 is received in the continuous bearing bore 7 of the bearing bush 8, which has the radially outwardly facing flange 9 at the right-hand end, which is provided with through holes 10, so that the bearing bush 8 by means of fastening screws 11 in the bore 12th the side wall 5 is held. The first support bearing 3 is formed as a three-row cylindrical roller bearing, roll its guided in cages 13 cylindrical rollers 14 on associated raceways, which are formed on the one hand by the inner ring 15 and on the other hand by the inner circumferential surface of the bearing bush 8. The support bearing 3 is sealed on the left side by the seal 16 and held on the right side on its inner ring 15 with the lock nut 17 on the bearing pin 2, wherein the locking nut 17 can be fixed by the pin 18 on the pin 2 at the desired location is. How out FIG. 2 it can be seen, the support bearing 3 has an eccentrically formed bearing bush 8, the axis 19 is offset from the axis 6 of the pin 2.

Wie die Figuren 1 und 2 weiter zeigen, ist das zweite Stützlager 4 axial beabstandet vom ersten Stützlager 3 außerhalb der Lagerbohrung 7 in dem Gehäuse 20 aufgenommen, das über seinen Flansch 21 mittels Befestigungsschrauben 22 mit dem Lageraußenring 23 verbunden ist. Zum als doppelreihigen Zylinderrollenlager ausgebildeten zweiten Stützlager 4 gehören weiter der Lagerinnenring 24 und die im Käfig 25 geführten Zylinderrollen 26. Die Abdichtung des zweiten Stützlagers 4 erfolgt linksseitig durch die schleifende Dichtung 27, die zwischen den Stirnseiten von Lagerbuchse 8 und dem Gehäuse 20 auf dem Lageraußenring 23 sitzend angeordnet ist. Zur Dichtung gehört ebenfalls der Dichtring 28, der den zwischen Flansch 21 und Zapfen 2 gebildeten Spalt verschließt.As the FIGS. 1 and 2 further show, the second support bearing 4 is axially spaced from the first support bearing 3 outside of the bearing bore 7 received in the housing 20, which is connected via its flange 21 by means of fastening screws 22 with the bearing outer ring 23. To form a double-row cylindrical roller bearing second support bearing 4 further include the bearing inner ring 24 and guided in the cage 25 cylindrical rollers 26. The sealing of the second support bearing 4 on the left side by the sliding seal 27, between the end faces of bearing bush 8 and the housing 20 on the bearing outer ring 23 is arranged sitting. The seal also includes the sealing ring 28, which closes the gap formed between the flange 21 and pin 2.

Wie Figur 2 weiter zeigt, ist das Gehäuse 20 an zwei gegenüberliegenden Umfangsstellen mit je einem Bolzen 29 verbunden, der jeweils von einem Lagerbock 30 aufgenommen ist, der wiederum an der Seitenwand 5 über Befestigungsschrauben 31 gehalten ist. Der Durchmesser der Befestigungsschrauben 31 ist dabei kleiner als der Durchmesser der zugehörigen Bohrungen 32 im Lagerbock 30. Über dem linksseitigen Lagerbock 30 ist die Stellschraube 33 angeordnet, die im Aufnahmeteil 34 untergebracht ist, das über Befestigungsschrauben 35 mit der Seitenwand 5 verbunden ist.As FIG. 2 further shows, the housing 20 is connected at two opposite circumferential locations, each with a pin 29 which is received in each case by a bearing block 30, which in turn is held on the side wall 5 via fastening screws 31. The diameter of the fastening screws 31 is smaller than the diameter of the associated holes 32 in the bearing block 30. About the left-side bracket 30, the adjusting screw 33 is arranged, which is housed in the receiving part 34 which is connected via fastening screws 35 with the side wall 5.

Soll nun einer im Druckbetrieb festgestellten unerwünschten Durchbiegung des Druckzylinders 1 begegnet werden, so werden zunächst die in beiden Lagerböcken 30 gemäß Figur 2 angeordneten Befestigungsschrauben 31 gelöst, d. h. aus ihrer mit einem Gewinde versehenen Aufnahmebohrung in der Seitenwand 5 geringfügig herausgedreht. Wird nun die im Aufnahmeteil 34 angeordnete Stellschraube 33 in Pfeilrichtung nach unten bewegt, so wird der Verschiebekraft folgend auch der linksseitig angeordnete Lagerbock 30 nach unten bewegt. Dies ist möglich, weil der Durchmesser der Befestigungsschrauben 31 geringer als die Bohrung 32 im Lagerbock 30 ist, d. h. weil zwischen beiden ein Spalt gebildet ist. Im vorliegenden Fall wird je nach Bewegung der Stellschraube 33 eine teilweise Bewegung des im Gehäuse 20 angeordneten Stützlagers 4 nach unten erfolgen, wobei der Drehpunkt im oder beim rechtsseitigen Lagerbock 30 zu suchen ist. Es ist aber auch denkbar, rechtsseitig über den Lagerbock 30 eine weitere Stellschraube 33 anzuordnen. In den zwischen Lagerbock 30 und Aufnahmeteil 24 nach dem Verstellen gebildeten Spalt kann gegebenenfalls eine Abstandsscheibe eingeschoben werden. Das beschriebene Stützlagerkonzept kann entweder einseitig oder auf beiden Seiten des Druckzylinders 1 eingesetzt werden.If now an undesired deflection of the impression cylinder 1 detected in the printing operation is to be counteracted, then the two blocks 30 according to FIG FIG. 2 arranged fastening screws 31 solved, ie slightly rotated out of its threaded receiving bore in the side wall 5. Now, if the adjusting screw 33 arranged in the receiving part 34 is moved downwards in the direction of the arrow, the displacement force following also the bearing block 30 arranged on the left side will move downwards emotional. This is possible because the diameter of the fastening screws 31 is less than the bore 32 in the bearing block 30, that is, because a gap is formed between the two. In the present case, depending on the movement of the adjusting screw 33, a partial movement of the arranged in the housing 20 support bearing 4 down done, the pivot point in or on the right side bearing block 30 is to be sought. However, it is also conceivable to arrange a further adjusting screw 33 on the right side via the bearing block 30. In the gap formed between the bearing block 30 and receiving part 24 after adjustment may optionally be inserted a shim. The described support bearing concept can be used either on one side or on both sides of the printing cylinder 1.

Bezugszeichenreference numeral

11
Druckzylinderpressure cylinder
22
Zapfenspigot
33
erstes Stützlagerfirst support bearing
44
zweites Stützlagersecond support bearing
55
SeitenwandSide wall
66
Achseaxis
77
durchgehende Lagerbohrungcontinuous bearing bore
88th
Lagerbuchsebearing bush
99
Flanschflange
1010
Bohrungdrilling
1111
Befestigungsschraubefixing screw
1212
Bohrungdrilling
1313
KäfigCage
1414
Zylinderrollecylindrical roller
1515
Innenringinner ring
1616
Dichtungpoetry
1717
Sicherungsmutterlocknut
1818
Stiftpen
1919
Achseaxis
2020
Gehäusecasing
2121
Flanschflange
2222
Befestigungsschraubefixing screw
2323
LageraußenringBearing outer ring
2424
LagerinnenringBearing inner ring
2525
KäfigCage
2626
Zylinderrollecylindrical roller
2727
Dichtungpoetry
2828
Dichtringseal
2929
Bolzenbolt
3030
Lagerbockbearing block
3131
Befestigungsschraubefixing screw
3232
Bohrungdrilling
3333
Stellschraubescrew
3434
Aufnahmeteilreceiving part
3535
Befestigungsschraubefixing screw

Claims (13)

  1. Mounting for journals (2) of cylinders (1) or drums in printing machines, the journal (2) being accommodated in at least one antifriction bearing arranged in a drilled hole (12) in a side wall (5), characterized in that in the drilled hole (12) in the side wall (5) there is arranged a bearing bush (8), in the continuous bearing bore (7) of which a first supporting bearing (3) is arranged, a second, radially adjustable supporting bearing (4) being arranged at a distance therefrom in the axial direction, outside the bearing bore (7), the second supporting bearing (4) being accommodated by a housing (20), which is connected to the side wall (5) such that it can be loosened and therefore displaced with respect to the latter.
  2. Mounting according to Claim 1, characterized in that the housing (20) is connected at two opposite circumferential points to a pin (29) in each case, which is in each case accommodated by a bearing block (30), which is held on the side wall (5) by fixing screws (31).
  3. Mounting according to Claim 2, characterized in that the diameter of the fixing screws (31) is smaller than the diameter of the associated drilled holes (32) in the bearing block (30).
  4. Mounting according to Claim 2, characterized in that above at least one of the bearing blocks (30) there is arranged a setting screw (33) to apply a displacement force thereto, the setting screw (33) being accommodated in a holding part (34) which is held on the side wall (5) by fixing screws (35).
  5. Mounting according to Claim 1, characterized in that the second supporting bearing (4) in the housing (20) is enclosed on one side by a flange (21) which points radially inwards and which is connected to the said housing by fixing screws (22).
  6. Mounting according to Claim 1, characterized in that the bearing bush (8) has a flange (9) which points radially outwards and has continuous drilled holes (10) through which fixing screws (11) for fixing to the side wall (5) are led.
  7. Bearing arrangement according to Claim 1, characterized in that the second supporting bearing (4) is formed as a multi-row cylinder roller bearing.
  8. Bearing arrangement according to Claim 1, characterized in that a seal (27) is arranged between bearing bush (8) and housing (20).
  9. Bearing arrangement according to Claim 1, characterized in that a seal (28) is arranged in the region of the flange (21) of the housing (20).
  10. Bearing arrangement according to Claim 1, characterized in that the first supporting bearing (3) is formed as a multi-row cylinder roller bearing.
  11. Bearing arrangement according to Claim 1, characterized in that the first supporting bearing (3) is an eccentric bearing.
  12. Bearing arrangement according to Claim 1, characterized in that the first supporting bearing (3) is retained on the journal (2) by a securing nut (17).
  13. Bearing arrangement according to Claim 1, characterized in that the first supporting bearing (3) is provided with a seal (16).
EP01969613A 2000-09-13 2001-08-20 Bearing for a cylinder or drum in a printing machine Expired - Lifetime EP1322474B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2000145146 DE10045146A1 (en) 2000-09-13 2000-09-13 Bearing for cylinders or drums in printing machines
DE10045146 2000-09-13
PCT/EP2001/009559 WO2002022361A1 (en) 2000-09-13 2001-08-20 Bearing for a cylinder or drum in a printing machine

Publications (2)

Publication Number Publication Date
EP1322474A1 EP1322474A1 (en) 2003-07-02
EP1322474B1 true EP1322474B1 (en) 2008-10-15

Family

ID=7655973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01969613A Expired - Lifetime EP1322474B1 (en) 2000-09-13 2001-08-20 Bearing for a cylinder or drum in a printing machine

Country Status (3)

Country Link
EP (1) EP1322474B1 (en)
DE (2) DE10045146A1 (en)
WO (1) WO2002022361A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343580B4 (en) * 2003-09-18 2013-07-18 Koenig & Bauer Aktiengesellschaft Roller lock with an inner part and an outer part
DE102006011926B4 (en) * 2006-03-15 2010-03-18 Windmöller & Hölscher Kg Method for adjusting the position of the printing unit of a printing machine and apparatus for carrying out this method
US7753595B2 (en) 2007-03-01 2010-07-13 Hewlett-Packard Development Company, L.P. Printer drum bearing mount
DE102007030889A1 (en) 2007-07-03 2009-01-08 Manroland Ag Printing unit for a rotary printing machine
DE102008025997B4 (en) * 2008-05-29 2012-10-04 Windmöller & Hölscher Kg Color or printing unit of a printing press
DE102010030331B4 (en) * 2010-06-22 2013-06-06 Koenig & Bauer Aktiengesellschaft Devices for storing one or more cylinders of a printing press
DE102011082679B4 (en) * 2011-09-14 2014-07-03 Koenig & Bauer Aktiengesellschaft Device and method for fastening and / or adjusting a bearing device of a printing cylinder
DE102013213511B4 (en) 2013-07-10 2015-11-05 Koenig & Bauer Ag Bearing device for a rotary body of a printing press
CN107718857B (en) * 2017-11-09 2023-12-26 常德金鹏印务有限公司 Press protruding inter-axle distance adjusting device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2090939A (en) * 1934-09-13 1937-08-24 Goss Printing Press Co Ltd Rotary printing press
DE1227916B (en) * 1962-04-28 1966-11-03 Maschf Augsburg Nuernberg Ag Bearing arrangement for a cylinder of printing machines, in particular for the rubber cylinder of a sheet-fed offset printing machine
US3326439A (en) * 1964-09-15 1967-06-20 Harris Intertype Corp Preloading structure for cooperating cylinders
DE2926570A1 (en) * 1979-06-30 1981-01-22 Koenig & Bauer Ag ARRANGEMENT FOR INTERACTIONAL SUPPORTING CYLINDERS OF A PRINTING UNIT
DE3808142A1 (en) * 1988-03-11 1989-09-21 Goebel Gmbh Maschf STORAGE FACILITIES
DE3808143A1 (en) * 1988-03-11 1989-09-21 Goebel Gmbh Maschf STORAGE FACILITIES
DE4126545C2 (en) * 1991-08-10 1994-11-24 Roland Man Druckmasch Three-ring roller bearings for the journals of the cylinders of printing machines
DE4224318C2 (en) * 1992-07-23 1996-02-01 Roland Man Druckmasch Bearing for cylinders of printing machines
DE4401300A1 (en) * 1993-02-09 1994-08-11 Grapha Holding Ag Device for processing ribbon-like or sheet-like material

Also Published As

Publication number Publication date
DE50114427D1 (en) 2008-11-27
DE10045146A1 (en) 2002-05-23
EP1322474A1 (en) 2003-07-02
WO2002022361A1 (en) 2002-03-21

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