DE943920C - Device for monitoring oil-lubricated roller bearings - Google Patents

Device for monitoring oil-lubricated roller bearings

Info

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
Application number
DES41568A
Other languages
German (de)
Inventor
Dr-Ing Otto Schenk
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.)
SKF GmbH
Original Assignee
SKF Kugellagerfabriken GmbH
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 SKF Kugellagerfabriken GmbH filed Critical SKF Kugellagerfabriken GmbH
Priority to DES41568A priority Critical patent/DE943920C/en
Application granted granted Critical
Publication of DE943920C publication Critical patent/DE943920C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16NLUBRICATING
    • F16N29/00Special 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
    • F16N29/04Special 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)

PATENTANSPRÜCHE: i. Vorrichtung nach Patent 917 156 für die . Überwachung mit Umlauföl geschmierter Wälzlager, vorzugsweise in Großmaschinen, dadurch gekennzeichnet, daß das aus dem Wälzlager fließende Öl beim Durchgang durch eine oder mehrere Spulen deren Hochfrequenzfeld induktiv beeinflußt, wodurch qualitative Veränderungen des Schmieröles, die sich bei-Beginn einer Lagerstörung zeigen, rechtzeitig erkennbar sind. PATENT CLAIMS: i. Device according to patent 917 156 for the. Monitoring roller bearings lubricated with circulating oil, preferably in large machines, characterized in that the oil flowing out of the roller bearing inductively influences the high-frequency field when it passes through one or more coils, whereby qualitative changes in the lubricating oil that appear at the beginning of a bearing malfunction can be recognized in good time . 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß neben der induktiven auch die kapazitive Methode Anwendung findet, so daß sowohl qualitative als auch quantitative Veränderungen des durchfließenden Öles erfaßbar sind. 2. Apparatus according to claim i, characterized in that in addition to the inductive as well as the capacitive method is used, so that both qualitative and quantitative changes in the oil flowing through can be recorded. 3. Vorrichtung nach Anspruch i und 2, dadurch gekennzeichnet, daß zusätzlich die Temperatur des Lagers kontrolliert wird:3. Device according to claim i and 2, characterized in that additionally the temperature of the Warehouse is controlled:
DES41568A 1954-11-17 1954-11-17 Device for monitoring oil-lubricated roller bearings Expired DE943920C (en)

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)

Similar Documents

Publication Publication Date Title
DE2314954C3 (en) Arrangement for the ongoing determination and monitoring of the service life of thermally loaded thick-walled components
DE2108771A1 (en) Detector device
CH630667A5 (en) CIRCUIT ARRANGEMENT ON A DEVICE FOR PRODUCING A FIBER STRAP OF UNIFORM DENSITY.
DE3338420A1 (en) METHOD FOR MONITORING LUBRICATION POINTS
DE943920C (en) Device for monitoring oil-lubricated roller bearings
DE1297781B (en) Electric sensor device
DES0041568MA (en)
DE917156C (en) Device for monitoring oil-lubricated roller bearings
DE855625C (en) Device for recording three or more related measured quantities
DE2403402B1 (en) Arrangement for monitoring measuring transducers and their supply lines for line breaks
DE2102565A1 (en) Display device for the position of a control rod
DE965446C (en) Device for capacitive measurement of the backlash in gas or steam turbines using a comparative capacitance
DE4137588C2 (en) Process for casting metals in a continuous caster
DE2845339C2 (en) Method for monitoring voltage changes within parts of a turbomachine and a device for carrying out the method
DE1167435B (en) Leak monitoring for electrical machines with combined liquid and gas cooling
DE102008002513A1 (en) Method and device for treating a fibrous web
AT308191B (en) Device for displaying cable and earth faults for cable cars
DE863089C (en) Choke coil assembly
DD217599A1 (en) ARRANGEMENT FOR MONITORING AND EVALUATING REAL ESTATE CONDITIONS IN STORAGE
EP0281735B1 (en) Arrangement for monitoring a flow of oil serving to lubrify a lubrification station
DE722966C (en) Device for the continuous recording of the limit values of loads on materials testing machines that change in opposite directions
AT92690B (en) Device for displaying the oil circulation and the oil pressure in the lubrication lines of machine systems.
DE69108073T2 (en) Method and device for electrical signal processing and voltage wave sensors.
AT166833B (en) Temperature monitoring device for liquid-filled electrical apparatus, in particular transformers
DE339803C (en) Device for displaying the oil circulation and the oil pressure in the lubrication lines of machine systems