DE943920C - Device for monitoring oil-lubricated roller bearings - Google Patents
Device for monitoring oil-lubricated roller bearingsInfo
- Publication number
- DE943920C DE943920C DES41568A DES0041568A DE943920C DE 943920 C DE943920 C DE 943920C DE S41568 A DES41568 A DE S41568A DE S0041568 A DES0041568 A DE S0041568A DE 943920 C DE943920 C DE 943920C
- Authority
- DE
- Germany
- Prior art keywords
- oil
- roller bearings
- monitoring oil
- lubricated roller
- inductive
- 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
Links
Classifications
-
- 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
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/04—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems enabling a warning to be given; enabling moving parts to be stopped
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
Vorrichtung für die Uberwachung ölgeschmierter Wälzlager Die Weiterentwicklung der Vorrichtung für die Überwachung ölgeschmierter Wälzlager nach Hauptpatent 917 156 hat gezeigt, daß es möglich ist,, den Erfindungsgegenstand zu verbessern.Device for monitoring oil-lubricated roller bearings The further development of the device for monitoring oil-lubricated roller bearings according to main patent 917 156 has shown that it is possible to improve the subject matter of the invention.
Nach der Erfindung wird dies dadurch erreicht, daß an Stelle des Kondensators, zwischen dessen Belägen das Umlauföl als Dielektrikum durchläuft, eine oder mehrere Spulen angeordnet sind, die vom Umlauföl durchflossen werden. Es wird also an Stelle der kapazitiven die induktive Methode für die Anzeige von Veränderungen des Umlauföles bzw. von unerwünschten oder schädlichen Beimengungen verwendet. Es hat sich gezeigt, daß bestimmte qualitative Veränderungen des Umlauföles eine positive Anzeige der auf kapazitivem Weg arbeitenden Vorrichtung herbeiführen, ohne daß diese Veränderungen unmittelbar im Zusammenhang mit Lagerschäden stehen. Vor allem hat sich fein im Öl verteiltes Wasser in diesem Sinn nachteilig bemerkbar gemacht, da Wasser gegenüber C51 eine verhältnismäßig große -Dielektrizitätskonstante hat. Die Umstellung auf die induktive Methode beseitigt diese Schwierigkeit.According to the invention, this is achieved in that instead of the capacitor, The circulating oil runs through as a dielectric between the layers of which, one or more Coils are arranged through which the circulating oil flows. So it will be in place the capacitive the inductive method for displaying changes in the circulating oil or used by undesirable or harmful admixtures. It has shown, that certain qualitative changes in the circulating oil are a positive indication of the bring about the capacitive way device without these changes are directly related to bearing damage. Above all, fine im Oil distributed water in this sense is adversely noticeable, since water is opposite C51 has a relatively large dielectric constant. The switch to the inductive method overcomes this difficulty.
Gemäß der Erfindung wird das aus dem Wälzlager fließende Öl durch ein Hochfrequenz-Spulenpaar geleitet, in dessen Feld ein Meßspule angeordnet ist. Fremdkörper im C51, vor allem metallische Beimengungen, stören das Hochfrequenzfeld, und infolge dieser Störungen ändert- sich das induktive Verhalten des Schwingungskreises. Die induktive Änderung geht in bekannter Weise über einen Verstärker und löst bei Überschreiten des eingestellten Grenzwertes,_ z. B. über ein' Relais, die Warnvorrichtung aus.According to the invention, the oil flowing from the roller bearing is through a pair of high frequency coils guided, in the field of which a measuring coil is arranged. Foreign bodies in the C51, especially metallic additions, interfere with this High-frequency field, and as a result of these disturbances, the inductive behavior changes of the oscillation circuit. The inductive change goes in a known manner via a Amplifier and triggers when the set limit value is exceeded, _ z. B. over on 'relay, the warning device off.
Durch die induktive Beeinflussung des Schwingungskreises gelingt es, das erste Auftreten einer beginnenden Lagerbeschädigung, auf welchen Umstandes ja ankommt, um den plötzlichen, unvorhergesehenen Ausfall des Lagers und damit verbundene kostspielige Folgeschäden und Betriebsstockungen zu -verhindern, mit Sicherheit und rechtzeitig zu erkennen. Die erfindungsgemäße, nach der induktiven Methode arbeitende Vorrichtung kann selbstverständlich genau so wie die kapazitive Vorrichtung nach Hauptpatent 917 156 mit einer Anordnung für die quantitative Erfassung des Umlauföles und die Überwachung der Temperatur ausgestattet werden. Schließlich ist es auch möglich, die induktive mit der kapazitiven Methode zusammen in einer Vorrichtung zur Anwendung zu bringen.By influencing the oscillating circuit inductively, it is possible to the first occurrence of incipient bearing damage, on which circumstance yes arrives to the sudden, unforeseen failure of the bearing and associated To prevent costly consequential damage and operational stoppages, with certainty and to be recognized in time. The inventive, working according to the inductive method The device can of course just like the capacitive device Main patent 917 156 with an arrangement for the quantitative detection of the circulating oil and temperature monitoring. After all, it is too possible, the inductive and the capacitive method together in one device to apply.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES41568A DE943920C (en) | 1954-11-17 | 1954-11-17 | Device for monitoring oil-lubricated roller bearings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES41568A DE943920C (en) | 1954-11-17 | 1954-11-17 | Device for monitoring oil-lubricated roller bearings |
Publications (1)
Publication Number | Publication Date |
---|---|
DE943920C true DE943920C (en) | 1956-06-01 |
Family
ID=7484040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES41568A Expired DE943920C (en) | 1954-11-17 | 1954-11-17 | Device for monitoring oil-lubricated roller bearings |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE943920C (en) |
-
1954
- 1954-11-17 DE DES41568A patent/DE943920C/en not_active Expired
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