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EP0031415B1 - Shaft seal for distributing rollers in inking systems of printing machines - Google Patents

Shaft seal for distributing rollers in inking systems of printing machines Download PDF

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Publication number
EP0031415B1
EP0031415B1 EP80106619A EP80106619A EP0031415B1 EP 0031415 B1 EP0031415 B1 EP 0031415B1 EP 80106619 A EP80106619 A EP 80106619A EP 80106619 A EP80106619 A EP 80106619A EP 0031415 B1 EP0031415 B1 EP 0031415B1
Authority
EP
European Patent Office
Prior art keywords
shaft seal
ring
printing machines
sealing ring
sealing
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
Application number
EP80106619A
Other languages
German (de)
French (fr)
Other versions
EP0031415A1 (en
Inventor
Janko Despot
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0031415A1 publication Critical patent/EP0031415A1/en
Application granted granted Critical
Publication of EP0031415B1 publication Critical patent/EP0031415B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/15—Devices for moving vibrator-rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/38—Means for axially reciprocating inking rollers

Definitions

  • a ball bearing 3 is pushed onto a collar 2 of the friction pin 1, which is supported on the one hand on a retaining ring 4 and on the other hand on a support ring 5.
  • the ball bearing 3 is closed to the friction side by a grease seal .6 6.
  • the ball bearing 3 is pressed with its outer ring into a guide housing 7 which is guided in the axial direction by means of a wedge 8 in a guide bar 9 and secured against rotation.
  • a radial sealing ring 10 is pressed, the sealing lip 11 of which acts on the actual journal 12.
  • an oil retaining ring 13 is also provided, which is also pressed into the guide housing 7.
  • a splash ring 14 is arranged as seen towards the center of the machine. This spray ring 14 does not rotate, so that the oil which is also conveyed by the friction pin during the oscillating friction movement and which sprays off the shaft at higher speeds is collected by this spray ring 14.
  • the bore 15 in the splash ring 14, through which the friction pin 1 leads, is slightly larger in diameter than the friction pin. The oil still penetrating through this gap reaches the sealing lip 11 of the radial sealing ring 10, which is connected to the friction device as described above.
  • this radial sealing ring does not rotate, but changes due to the construction together with the friction device, the sealing lip is always in the same place on the friction pin, so that the advantage arises that the sealing lip only has to seal in the radial direction and not in the axial direction . This ensures that a seal of the grater against oil leakage is achieved even at higher engine speeds by means of a conventional sealing system.

Landscapes

  • Sealing Of Bearings (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Wellenabdichtung an Zapfen von changierenden Verreibwalzen an Farbwerken, bei denen die Abdichtung gegen herausfließendes Öl mittels eines Radialdichtringes vorgenommen wird. Es ist allgemein bekannt, daß an rotierenden Wellen als Abdichtungen Radialdichtringe Verwendung finden. Diese Radialdichtringe sind mit einer Dichtlippe versehen, die auf der Wellenoberfläche anliegt. Mittels eines Spiralringes wird die Dichtlippe auf die Wellenoberfläche gezogen und eine Abdichtung erzielt. Die Dichtfähigkeit dieser Radialdichtringe hängt von der Umfangsgeschwindigkeit der Welle ab, wodurch diese Dichtringe für hohe Geschwindigkeiten nur bedingt tauglich sind. Kommt zusätzlich zur Rotation der Welle auch noch eine changierende Bewegung hinzu, so treten beim Abdichten erhebliche Schwierigkeiten auf, so daß nur noch bis ca. 4 m/sek. eine Dichtung zustande kommt. Es liegt daher der Erfindung die Aufgabe zugrunde, eine Wellenabdichtung für rotierende und changierende Wellen zu schaffen, mittels der trotz Changierbewegung eine absolute Abdichtung ermöglicht wird.Shaft sealing on the journals of oscillating distribution rollers on inking units, in which the sealing against oil flowing out is carried out by means of a radial sealing ring. It is generally known that radial seals are used as seals on rotating shafts. These radial sealing rings are provided with a sealing lip that rests on the shaft surface. The sealing lip is pulled onto the shaft surface by means of a spiral ring and a seal is achieved. The sealing ability of these radial sealing rings depends on the circumferential speed of the shaft, which means that these sealing rings are only of limited suitability for high speeds. If, in addition to the rotation of the shaft, there is also an oscillating movement, considerable difficulties arise during sealing, so that only up to approx. 4 m / sec. a seal comes about. It is therefore the object of the invention to provide a shaft seal for rotating and oscillating shafts, by means of which an absolute seal is made possible despite the oscillating movement.

Diese Aufgabe wird gemäß dem kennzeichnenden Teil des ersten Anspruches gelöst.This object is achieved in accordance with the characterizing part of the first claim.

Anhand eines Ausführungsbeispiels wird die Erfindung nachfolgend näher erläutert und an einer Skizze beschrieben.Using an exemplary embodiment, the invention is explained in more detail below and described in a sketch.

Es zeigt :

  • Figur 1 einen Schnitt durch eine Wellenabdichtung mittels eines Radialabdichtringes.
It shows :
  • 1 shows a section through a shaft seal by means of a radial sealing ring.

Auf einem Bund 2 des Reiberzapfens 1 ist ein Kugellager 3 aufgeschoben, das sich einerseits an einem Sicherungsring 4 und andererseits an einem Stützring 5 abstützt. Das Kugellager 3 ist zur Reiberseite hin durch einen Fettdichtring .6 6 verschlossen. Das Kugellager 3 ist mit seinem Außenring in ein Führungsgehäuse 7 gepreßt, das mittels eines Keils 8 in einer Führungsleiste 9 in axialer Richtung geführt und gegen Verdrehen gesichert wird. In der dem Kugellager 3 gegenüberliegenden Seite des Führungsgehäuses 7 ist ein Radialdichtring 10 eingepreßt, dessen Dichtlippe 11 auf den eigentlichen Lagerzapfen 12 wirkt. Zusätzlich zum Radialdichtring 10 ist noch ein Ölrückhaftering 13 vorgesehen, der ebenfalls in das Führungsgehäuse 7 eingepreßt ist.A ball bearing 3 is pushed onto a collar 2 of the friction pin 1, which is supported on the one hand on a retaining ring 4 and on the other hand on a support ring 5. The ball bearing 3 is closed to the friction side by a grease seal .6 6. The ball bearing 3 is pressed with its outer ring into a guide housing 7 which is guided in the axial direction by means of a wedge 8 in a guide bar 9 and secured against rotation. In the side of the guide housing 7 opposite the ball bearing 3, a radial sealing ring 10 is pressed, the sealing lip 11 of which acts on the actual journal 12. In addition to the radial sealing ring 10, an oil retaining ring 13 is also provided, which is also pressed into the guide housing 7.

Die Funktion der Wellenabdichtung wird wie folgt beschrieben : Hinter dem Lager des Reibers ist zur Maschinenmitte hin gesehen ein Spritzring 14 angeordnet. Dieser Spritzring 14 rotiert nicht, so daß das vom Reiberzapfen bei der changierenden Reiberbewegung mitgeförderte Öl, das bei höheren Drehzahlen von der Welle abspritzt, von diesem Spritzring 14 aufgefangen wird. Die Bohrung 15 im Spritzring 14, durch die der Reiberzapfen 1 führt, ist im Durchmesser wenig größer als der Reiberzapfen. Das noch durch diesen Spalt dringende Öl gelangt bis zur Dichtlippe 11 des Radialdichtringes 10, der wie oben beschrieben mit dem Reiber verbunden ist. Dadurch, daß dieser Radialdichtring nicht rotiert, aber aufgrund der Konstruktion zusammen mit dem Reiber changiert, befindet sich die Dichtlippe immer an der gleichen Stelle am Reiberzapfen, so daß der Vorteil entsteht, daß die Dichtlippe nur in radialer Richtung und nicht in axialer Richtung abdichten muß. Hierdurch ist erreicht, daß mittels eines herkömmlichen Dichtungssystems eine Abdichtung des Reibers gegen Ölaustritt auch noch bei höheren Maschinendrehzahlen erzielt wird.The function of the shaft seal is described as follows: Behind the bearing of the grater, a splash ring 14 is arranged as seen towards the center of the machine. This spray ring 14 does not rotate, so that the oil which is also conveyed by the friction pin during the oscillating friction movement and which sprays off the shaft at higher speeds is collected by this spray ring 14. The bore 15 in the splash ring 14, through which the friction pin 1 leads, is slightly larger in diameter than the friction pin. The oil still penetrating through this gap reaches the sealing lip 11 of the radial sealing ring 10, which is connected to the friction device as described above. The fact that this radial sealing ring does not rotate, but changes due to the construction together with the friction device, the sealing lip is always in the same place on the friction pin, so that the advantage arises that the sealing lip only has to seal in the radial direction and not in the axial direction . This ensures that a seal of the grater against oil leakage is achieved even at higher engine speeds by means of a conventional sealing system.

Claims (2)

1. Shaft seal on the journal of vibrating distributor rollers in ink units, in which oil is prevented from flowing out by a raial sealing ring, in which, an anti-friction bearing (3), on which a guide casing (7) prevented from rotating by a guide bar (9) and guided in the axial direction is mounted, is provided on a collar (2) of the distributor journal (1), the radial sealing ring (10) being installed in the guide casing (7), thus being subject to a vibrating movement corresponding to that of the distributor journal (1).
2. Arrangement according to claim 1, in which, an oil rataining ring (13), is provided in the guide casing (7) in front of the radial sealing ring (10).
EP80106619A 1979-12-21 1980-10-29 Shaft seal for distributing rollers in inking systems of printing machines Expired EP0031415B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2951652 1979-12-21
DE2951652A DE2951652C2 (en) 1979-12-21 1979-12-21 Storage of a distribution roller

Publications (2)

Publication Number Publication Date
EP0031415A1 EP0031415A1 (en) 1981-07-08
EP0031415B1 true EP0031415B1 (en) 1983-06-01

Family

ID=6089227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106619A Expired EP0031415B1 (en) 1979-12-21 1980-10-29 Shaft seal for distributing rollers in inking systems of printing machines

Country Status (5)

Country Link
US (1) US4362102A (en)
EP (1) EP0031415B1 (en)
JP (1) JPS5698170A (en)
BR (1) BR8008437A (en)
DE (1) DE2951652C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE35944T1 (en) * 1983-07-07 1988-08-15 Roland Man Druckmasch INKING OR DAMPENING UNIT FOR ROTARY PRINTING MACHINES.
DE8805833U1 (en) * 1988-05-03 1988-07-21 SKF GmbH, 8720 Schweinfurt Sealing ring for bearings, especially for bearing bushes of universal joints
DE19539502A1 (en) 1995-10-24 1997-05-15 Koenig & Bauer Albert Ag Bearing of a distribution cylinder of a rotary printing press
US7931125B2 (en) * 2001-05-16 2011-04-26 Freudenberg-Nok General Partnership Shaft seal with lubrication device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE220418C (en) *
US1748247A (en) * 1928-03-02 1930-02-25 Timken Roller Bearing Co Inking roller
US2653538A (en) * 1950-07-17 1953-09-29 Miehle Printing Press & Mfg Printing cylinder adjustment and locking means
DE1106565B (en) * 1953-07-02 1961-05-10 Erboe Maschb Erley & Boenninge Sealing for roller bearings of running or support rollers, especially for endless conveyors
US2851315A (en) * 1954-06-17 1958-09-09 Timken Roller Bearing Co Breathing bearing-seal
US2948216A (en) * 1958-07-28 1960-08-09 Harris Intertype Corp Plate cylinder register mechanism
BE758155A (en) * 1970-02-19 1971-04-28 Federal Mogul Corp SEALING DEVICE WITH EXPANDABLE EXTERNAL PERIPHERY FOR ROTATING BODY
SE376868B (en) * 1970-05-22 1975-06-16 Miller Printing Machinery Co
US3704669A (en) * 1970-07-15 1972-12-05 Stevens Corp Vibrating roller with means for circulating a cooling fluid for use in bearing and drive gear lubrication
US3841723A (en) * 1973-05-22 1974-10-15 Gen Motors Corp Railway bearing seal
US4015883A (en) * 1973-10-23 1977-04-05 Skf Industrial Trading And Development Company, B.V. Annular sealing members and assemblies incorporating them
DD113395A1 (en) * 1974-05-02 1975-06-05
US4195854A (en) * 1975-10-14 1980-04-01 Jacques Bertin Shaft seal assemblies

Also Published As

Publication number Publication date
DE2951652C2 (en) 1981-07-09
JPS5698170A (en) 1981-08-07
EP0031415A1 (en) 1981-07-08
BR8008437A (en) 1981-07-14
DE2951652B1 (en) 1980-11-27
US4362102A (en) 1982-12-07

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