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CH199859A - Chuck for plain bearings to absorb radial and axial pressure. - Google Patents

Chuck for plain bearings to absorb radial and axial pressure.

Info

Publication number
CH199859A
CH199859A CH199859DA CH199859A CH 199859 A CH199859 A CH 199859A CH 199859D A CH199859D A CH 199859DA CH 199859 A CH199859 A CH 199859A
Authority
CH
Switzerland
Prior art keywords
chuck
bearing
plain bearings
axial pressure
absorb radial
Prior art date
Application number
Other languages
German (de)
Inventor
Oerlikon Maschinenfabrik
Original Assignee
Oerlikon Maschf
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 Oerlikon Maschf filed Critical Oerlikon Maschf
Publication of CH199859A publication Critical patent/CH199859A/en

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B31/00Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Description

  

  Futter für Gleitlager zur Aufnahme von radialem und axialem Druck.    An Stirnflächen des Gleitlagerfutters     schnell-          laufender    Maschinen, wie zum Beispiel von  Elektromotoren, ist nur eine mässig grosse  Abnützung, herrührend von Axialdrücken,  zulässig. Sie ist bedingt, sei es durch die  Art der Maschine selbst, sei es durch die  Bauart des Lagers und nicht zuletzt durch  die Art der Schmierung des Lagers. Insbe  sondere ist die bei schnellaufenden Maschinen  praktisch kaum zu umgehende sogenannte  Ringschmierung für Lager, die neben einer  Radialbelastung auch eine Axialbelastung  aufzunehmen haben, nicht günstig.

   Der  Schmierring befördert nämlich das durch die  Abnützung der Stirnfläche entstandene feinst  verteilte, im Öl emulsionsartig vorhandene  Metall immer wieder ins Lager; dieser  Metallstaub erhöht die Abnützung der Trag  flächen der Lagerschale in axialer und auch  in radialer Richtung. Durch Verbesserung  der Ölzufuhr zur Stirnfläche des Lagers ge  lingt es, die Abnützung des Lagerfutters  und damit die erwähnten Folgeerscheinungen  zeitlich auszudehnen. Es sind viele Anord-    nungen bekannt geworden, bei denen eine  Verbesserung beispielsweise durch Anbringen  zweckmässig geformter Schmiernuten in den  Lagerstirnflächen oder in der Wellenschulter  erreicht wird. Es lassen sich auch durch  Anbringen von ebenen, geschliffenen und  polierten Scheiben aus gehärtetem Stahl er  höhte, zulässige     Axialdrücke    erreichen.

   Alle  Massnahmen ergeben also eine Erhöhung des  zulässigen     Axialdruckes,    bezogen auf eine  bestimmte Abnützung der Stirnflächen inner  halb einer bestimmten Anzahl Betriebsstunden.  Erfindungsgemäss kann diese Abnützung we  sentlich vermindert oder der zulässige Axial  druck wesentlich erhöht werden, wenn das  Lagerfutter wenigstens teilweise aus porösem  Metall hergestellt wird.  



  Die beiliegende Zeichnung zeigt im Schnitt  Ausführungsbeispiele des Erfindungsgegen  standes. 1 ist das Lagerfutter in Form einer  ungeteilten, zylindrischen Büchse; 2 ist po  röses Metall, das mit dem übrigen Büchsen  teil stumpfgestossen (Fix. 1 und 3) oder von  letzterem überlappt     (.Fix.    2) sein kann.      Durch den sich bei der Drehung der  Welle tangential bildenden Ölkeil entsteht  auf der radialen Tragfläche des Lagers eine  Druckzone, die dass Ö1 fortlaufend durch die  Poren des porösen Lagermetaller zum     stirn-          seitigen    Lageranpass presst. Damit wird die  gewünschte reichliche Schmierung des     stirn-          seitigen    Lageranpasser erhalten.

   Ein Aus  treten des Öls an andern Stellen kann     'durch     Zulöten dieser Stellen 3 (Fig. 3) verhindert  werden. Der Erfindungsgedanke schliesst es  nicht aus, dass die Ölzufuhr in das poröse  Metall unter Druck durch andere bekannte  Verfahren, zum Beispiel     Druckschmierung,     erfolgt. Selbstverständlich beschränkt sich  die Anwendung der Erfindung nicht auf    ungeteilte Lagerbüchsen; geteilte Büchsen  (Lagerschalen) sind dazu auch     verwenbar.  



  Chuck for plain bearings to absorb radial and axial pressure. On the face of the plain bearing chuck of high-speed machines, such as electric motors, only moderate wear, resulting from axial pressures, is permitted. It is conditioned, be it by the type of machine itself, be it by the design of the bearing and not least by the type of lubrication of the bearing. In particular, the so-called ring lubrication for bearings that have to absorb an axial load in addition to a radial load, which can hardly be avoided in high-speed machines, is not favorable.

   The lubricating ring conveys the finely distributed metal, which is present as an emulsion in the oil and which is produced by the wear of the face, into the bearing again and again; this metal dust increases the wear of the bearing surfaces of the bearing shell in the axial and also in the radial direction. By improving the oil supply to the face of the bearing ge it is possible to extend the wear and tear of the bearing lining and thus the consequences mentioned. Many arrangements have become known in which an improvement is achieved, for example, by making appropriately shaped lubrication grooves in the bearing end faces or in the shaft shoulder. It can also be achieved by attaching flat, ground and polished disks made of hardened steel, he increased, permissible axial pressures.

   All measures result in an increase in the permissible axial pressure, based on a certain amount of wear on the end faces within a certain number of operating hours. According to the invention, this wear can be significantly reduced or the permissible axial pressure can be significantly increased if the bearing chuck is made at least partially from porous metal.



  The accompanying drawing shows in section exemplary embodiments of the subject of the invention. 1 is the bearing chuck in the form of an undivided, cylindrical sleeve; 2 is porous metal, which can be butt-butted with the rest of the bushing (Fix. 1 and 3) or overlapped by the latter (.Fix. 2). The oil wedge that forms tangentially when the shaft rotates creates a pressure zone on the radial bearing surface, which continuously presses the oil through the pores of the porous bearing metal to the face of the bearing adaptation. In this way, the desired abundant lubrication of the front bearing adapter is obtained.

   An exit of the oil at other points can be prevented by soldering these points 3 (Fig. 3). The concept of the invention does not exclude the fact that the oil is fed into the porous metal under pressure by other known methods, for example pressure lubrication. Of course, the application of the invention is not limited to undivided bearing bushes; Split bushings (bearing shells) can also be used for this.

 

Claims (1)

PATENTANSPRUCH: Futter für Gleitlager zur Aufnahme von radialem und axialem Druck, dadurch ge kennzeichnet dass das Lagerfutter wenigstens teilweise aus porösem Metall besteht. UNTERANSPRUCH: Futter für Gleitlager nach Patentanspruch, dadurch gekennzeichnet, dass das poröse Me tall stellenweise durch einen Überzug ver. schlossen ist. PATENT CLAIM: Chuck for plain bearings to absorb radial and axial pressure, characterized in that the bearing chuck consists at least partially of porous metal. SUBClaim: Lining for plain bearings according to patent claim, characterized in that the porous metal is closed in places by a coating.
CH199859D 1937-06-23 1937-06-23 Chuck for plain bearings to absorb radial and axial pressure. CH199859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH199859T 1937-06-23

Publications (1)

Publication Number Publication Date
CH199859A true CH199859A (en) 1938-09-15

Family

ID=4442043

Family Applications (1)

Application Number Title Priority Date Filing Date
CH199859D CH199859A (en) 1937-06-23 1937-06-23 Chuck for plain bearings to absorb radial and axial pressure.

Country Status (1)

Country Link
CH (1) CH199859A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248398B (en) * 1958-10-29 1967-08-24 Hugo Scobel Dr Ing Mechanical seal
DE3001115A1 (en) * 1980-01-14 1981-07-16 Gerätewerk Lahr GmbH, 7630 Lahr SELF-LUBRICATING SLIDING BEARING FOR A SHAFT, ESPECIALLY A TURNTABLE SHAFT OF A TURNTABLE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248398B (en) * 1958-10-29 1967-08-24 Hugo Scobel Dr Ing Mechanical seal
DE3001115A1 (en) * 1980-01-14 1981-07-16 Gerätewerk Lahr GmbH, 7630 Lahr SELF-LUBRICATING SLIDING BEARING FOR A SHAFT, ESPECIALLY A TURNTABLE SHAFT OF A TURNTABLE

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