AT330881B - METHOD OF MANUFACTURING PLATE BEARINGS FOR ELECTRICAL MACHINERY WITH INTERMEDIATE INSULATING LAYERS TO PREVENT BEARING CURRENTS - Google Patents

METHOD OF MANUFACTURING PLATE BEARINGS FOR ELECTRICAL MACHINERY WITH INTERMEDIATE INSULATING LAYERS TO PREVENT BEARING CURRENTS

Info

Publication number
AT330881B
AT330881B AT670074A AT670074A AT330881B AT 330881 B AT330881 B AT 330881B AT 670074 A AT670074 A AT 670074A AT 670074 A AT670074 A AT 670074A AT 330881 B AT330881 B AT 330881B
Authority
AT
Austria
Prior art keywords
bearing
insulation
shield
currents
bearings
Prior art date
Application number
AT670074A
Other languages
German (de)
Other versions
ATA670074A (en
Inventor
Josef Ing Binder
Original Assignee
Elin Union 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
Priority claimed from AT563172A external-priority patent/AT324485B/en
Application filed by Elin Union Ag filed Critical Elin Union Ag
Priority to AT670074A priority Critical patent/AT330881B/en
Publication of ATA670074A publication Critical patent/ATA670074A/en
Application granted granted Critical
Publication of AT330881B publication Critical patent/AT330881B/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • F16C35/00Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/02Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
    • 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
    • F16C35/00Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/042Housings for rolling element bearings for rotary movement
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/15Mounting arrangements for bearing-shields or end plates
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1672Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C2380/00Electrical apparatus
    • F16C2380/26Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Rolling Contact Bearings (AREA)

Description

  

  



   PATENTANSPRUCH : 
Verfahren zur Herstellung von Schildlagern für elektrische Maschinen mit elektrisch isolierenden 
 EMI1.1 
 (11) eines den Schildlagerboden (10) in zwei konzentrische Teile teilenden Autogenschnittes mit aushärtbarem, faserverstärktem Kunstharz ausgefüllt und das Kunstharz ausgehärtet wird. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



  



   PATENT CLAIM:
Process for the production of shield bearings for electrical machines with electrically insulating
 EMI1.1
 (11) an oxy-fuel section dividing the shield bearing base (10) into two concentric parts is filled with curable, fiber-reinforced synthetic resin and the synthetic resin is cured.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

<Desc/Clms Page number 1> <Desc / Clms Page number 1> Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von Schildlagern für elektrische Maschinen mit isolierenden Zwischenlagen zur Verhinderung von Lagerströmen. Lagerströme in elektrischen Maschinen entstehen durch elektromagnetische Flussschwankungen infolge von Unsymmetrien im Stator. Diese Ströme können bei entsprechender Grösse zur vorzeitigen Zerstörung der Lager führen. Bei Maschinen in Ausführung mit Stehlagern ist die Isolierung eines Lagerständers technisch leicht zu bewerkstelligen. Bei Maschinen in Schildlagerausführung sind bis jetzt nur relativ aufwendige Isoliermöglichkeiten bekanntgeworden. The invention relates to a method for producing shield bearings for electrical machines with insulating intermediate layers to prevent bearing currents. Bearing currents in electrical machines arise from electromagnetic flux fluctuations as a result of asymmetries in the stator. If they are large enough, these currents can lead to premature destruction of the bearings. In the case of machines with pillow block bearings, the insulation of a bearing stand is technically easy to accomplish. In machines with a shield bearing design, only relatively complex insulation options have become known up to now. So ist aus der Patentliteratur eine Ausführung bekannt, bei welcher das gesamte Lagerschild durch Einlegen von Isolierstreifen am Umfang einschliesslich der Passfläche zum Stator und die Befestigungsschrauben mittels Isolierhülsen und Scheiben aus Isolierstoff gegen den Stator isoliert sind. Aus der franz. Patentschrift Nr. 1, 217. 229 ist weiters eine Ausführung bekannt, bei welcher die Lagerisolierung dadurch erreicht wird, dass zwischen dem konisch ausgebildeten Lagerstützteil, in welchem das Lager eingebaut ist, und dem Lagerschildboden eine entsprechend geformte Isolierschicht eingebracht wird und dieser Lagerstützteil mit dem Lagerschildboden mittels ebenfalls isoliert angeordneter Schrauben verschraubt wird. For example, a design is known from the patent literature in which the entire bearing plate is insulated from the stator by inserting insulating strips on the circumference including the fitting surface to the stator and the fastening screws by means of insulating sleeves and washers made of insulating material. From the French Patent specification No. 1, 217.229 is also known a design in which the bearing isolation is achieved in that a correspondingly shaped insulating layer is introduced between the conical bearing support part in which the bearing is installed and the end shield base and this bearing support part with the Bearing shield bottom is screwed by means of also insulated screws. Diese Ausführungsarten sind nicht nur aufwendig, da für jede Typengrösse eigene Isolierstoffzuschnitte bereit gestellt werden müssen, sondern haben auch noch den Nachteil, dass bei der Montage oder Demontage die Isolierung leicht beschädigt werden kann. These types of construction are not only complex, since separate insulation material blanks have to be provided for each type size, but also have the disadvantage that the insulation can easily be damaged during assembly or disassembly. Ziel der Erfindung ist es, eine Lösung für die Lagerisolierung bei Schildlagermaschinen aufzuzeigen, welche die Nachteile der bisherigen Ausführungen vermeidet und eine billige und zuverlässige Lagerisolierung gewährleistet. The aim of the invention is to provide a solution for bearing insulation in shield bearing machines that avoids the disadvantages of the previous designs and ensures cheap and reliable bearing insulation. Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Schildlagern für elektrische Maschinen mit elektrisch isolierenden Zwischenlagen zur Verhinderung von Lagerströmen, wobei in erfindungsgemässer Weise die Trennfuge eines den Schildlagerbogen in zwei konzentrische Teile teilenden Autogenschnittes mit aushärtbarem, faserverstärktem Kunsharz ausgefüllt und das Kunstharz ausgehärtet wird. The invention relates to a method for producing shield bearings for electrical machines with electrically insulating intermediate layers to prevent bearing currents, the parting line of an oxy-fuel section dividing the shield bearing arc into two concentric parts being filled with curable, fiber-reinforced synthetic resin and the synthetic resin being cured. An Hand der Zeichnungen soll der erfindungsgemässe Vorschlag näher erläutert werden. Fig. l zeigt einen Schnitt durch eine erfindungsgemäss hergestellte Lagerisolierung für ein Wälzlager und Fig. 2 zeigt einen Schnitt durch eine erfindungsgemäss hergestellte Lagerisolierung für ein Gleitlager. The proposal according to the invention will be explained in more detail using the drawings. FIG. 1 shows a section through a bearing insulation produced according to the invention for a roller bearing and FIG. 2 shows a section through a bearing insulation produced according to the invention for a sliding bearing. In den Fig. 1 und 2 bedeuten-10-den Schildlagerboden,-12-den Lagerzentrierring,--13- das Wälzlager (Fig. l) bzw. die Lagerschale des Gleitlagers (Fig. 2),-14-die Welle und-15 und 16-den inneren und äusseren Lagerdeckel. Der Lagerzentrierring--12--ist mit dem Schildlagerboden verschweisst. In erfindungsgemässer Weise wird der Schildlagerboden--10--durch einen konzentrisch zur Welle liegenden Autogenschnitt geteilt. Die so entstehende Trennfuge--11--wird mit einem aushärtbaren, faserverstärkten Kunstharz ausgefüllt. Nach dem Aushärten des Harzes wird der Lagerzentrierring endgültig bearbeitet. Die Lagerdeckel--15, 16--sind in den Zentrierring eingepasst und mit diesem verschraubt. In Figs. 1 and 2, -10-the shield bearing base, -12-the bearing centering ring, -13- the roller bearing (Fig. 1) or the bearing shell of the plain bearing (Fig. 2), -14-the shaft and- 15 and 16 - the inner and outer bearing caps. The bearing centering ring - 12 - is welded to the bottom of the shield bearing. In a manner according to the invention, the shield bearing base - 10 - is divided by an oxy-fuel cut concentric to the shaft. The resulting parting line - 11 - is filled with a curable, fiber-reinforced synthetic resin. After the resin has hardened, the bearing centering ring is finally machined. The bearing caps - 15, 16 - are fitted into the centering ring and screwed to it. Der Vorteil der erfindungsgemässen Lösung für die Isolierung zur Verhinderung von Lagerströmen liegt in dem Umstand, dass die Isolationsschicht von aus der Montage oder Demontage-sei es des Lagerschildes oder der Lagerdeckel-resultierenden Beanspruchungen vollkommen frei bleibt, so dass eine Beschädigung der Isolation und eine Beeinträchtigung ihrer Wirksamkeit nicht zu befürchten ist. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. The advantage of the inventive solution for the insulation to prevent bearing currents lies in the fact that the insulation layer remains completely free from the stresses resulting from the assembly or disassembly, be it the end shield or the bearing cover, so that damage to the insulation and impairment their effectiveness is not to be feared. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT670074A 1972-06-30 1974-08-16 METHOD OF MANUFACTURING PLATE BEARINGS FOR ELECTRICAL MACHINERY WITH INTERMEDIATE INSULATING LAYERS TO PREVENT BEARING CURRENTS AT330881B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT670074A AT330881B (en) 1972-06-30 1974-08-16 METHOD OF MANUFACTURING PLATE BEARINGS FOR ELECTRICAL MACHINERY WITH INTERMEDIATE INSULATING LAYERS TO PREVENT BEARING CURRENTS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT563172A AT324485B (en) 1972-06-30 1972-06-30 PROCESS FOR MANUFACTURING PLATE BEARINGS FOR ELECTRICAL MACHINERY WITH INTERMEDIATE INSULATING LAYERS TO PREVENT BEARING CURRENTS
AT670074A AT330881B (en) 1972-06-30 1974-08-16 METHOD OF MANUFACTURING PLATE BEARINGS FOR ELECTRICAL MACHINERY WITH INTERMEDIATE INSULATING LAYERS TO PREVENT BEARING CURRENTS

Publications (2)

Publication Number Publication Date
ATA670074A ATA670074A (en) 1975-10-15
AT330881B true AT330881B (en) 1976-07-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
AT670074A AT330881B (en) 1972-06-30 1974-08-16 METHOD OF MANUFACTURING PLATE BEARINGS FOR ELECTRICAL MACHINERY WITH INTERMEDIATE INSULATING LAYERS TO PREVENT BEARING CURRENTS

Country Status (1)

Country Link
AT (1) AT330881B (en)

Also Published As

Publication number Publication date
ATA670074A (en) 1975-10-15

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