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
Links
- 239000002184 metal Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000005461 lubrication Methods 0.000 description 5
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction 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)
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)
| 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 |
-
1937
- 1937-06-23 CH CH199859D patent/CH199859A/en unknown
Cited By (2)
| 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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