DE925415C - Runner with salient poles held in grooves in the shaft - Google Patents

Runner with salient poles held in grooves in the shaft

Info

Publication number
DE925415C
DE925415C DES36657D DES0036657D DE925415C DE 925415 C DE925415 C DE 925415C DE S36657 D DES36657 D DE S36657D DE S0036657 D DES0036657 D DE S0036657D DE 925415 C DE925415 C DE 925415C
Authority
DE
Germany
Prior art keywords
grooves
shaft
runner
poles
webs
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
DES36657D
Other languages
German (de)
Inventor
Erwin Swatosch
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.)
Siemens AG
Original Assignee
Siemens 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
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES36657D priority Critical patent/DE925415C/en
Application granted granted Critical
Publication of DE925415C publication Critical patent/DE925415C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/28Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Description

Es wurden bereits Läufer mit am Innenende kammartig ausgebildeten Schenkelpolen vorgeschlagen, die in Rillen der Welle festgehalten werden. Zu diesem Zweck wird vorteilhaft die Welle verstärkt. Die Rillen bedeuten jedoch eine Schwächung der Welle. Mit Rücksicht auf die Fliehkräfte ist daher einerseits die kritische Drehzahl des Läufers und andererseits die Läuferlänge beschränkt.There have already been runners with a comb-like design at the inner end Proposed salient poles that are held in grooves in the shaft. To this For this purpose, the shaft is advantageously reinforced. However, the grooves mean a weakening the wave. Taking into account the centrifugal forces, therefore, on the one hand the critical one Speed of the rotor and on the other hand the rotor length is limited.

Diese Nachteile werden gemäß der Erfindung dadurch weitgehend vermindert, daß in den Rillen zwischen den Polen Stege angeordnet werden. Damit wird das Trägheitsmoment der Welle erhöht, so daß eine beachtliche Leistungssteigerung möglich ist.According to the invention, these disadvantages are largely reduced by that webs are arranged in the grooves between the poles. This becomes the moment of inertia the shaft increased, so that a considerable increase in performance is possible.

Die Fig. I und 2 der Zeichnung zeigen ein Ausführungsbeispiel der Erfindung. I ist die Welle der Maschine, an der die Pole 2 in villenartige Vertiefungen 3 eingesetzt sind. Zwischen diesen Rillen bzw. zwischen den Polen sind an der Welle I zur Erhöhung ihres Trägheitsmomentes Stege 4 angeordnet, die mit der Welle aus einem Stück bestehen, so daß die Rillen nur im Raume der einzelnen Pole vorhanden sind. 5 sind die axialen Bolzen zur Befestigung der in die Rillen eingesetzten Pole, zu welchem Zweck diese Pole mit kammartig ausgebildeten Innenenden in die Rillen der Welle eingreifen. Dabei werden zweckmäßig die Rillen für jeden Pol getrennt in der Weise in die Welle eingefräst, daß die Stege 4 zwischen den einzelnen Polen stehenbleiben. Es können auch mehrere in axialer Richtung nebeneinanderliegende Rillen gleichzeitig ausgearbeitet werden. Ein zu diesem Zweck verwendetes Werkzeug besitzt zweckmäßig um 9o° gegeneinander in der Umfangsrichtung und um eine Rillenteilung gegeneinander in axialer Richtung versetzte Drehstähle. Auch mehrere nebeneinander angeordnete Fräser können hierfür Verwendung finden. Der Durchmesser der Welle kann am Grunde der einzelnen Rillen unbedenklich verkleinert werden, da durch die Stege 4 eine weitaus stärkere Vergrößerung des Trägheitsmomentes erreicht wird.Figs. I and 2 of the drawing show an embodiment of the Invention. I is the shaft of the machine, on which the poles 2 in villa-like depressions 3 are used. Between these grooves or between the poles are on the shaft I arranged to increase their moment of inertia webs 4, which with the shaft from consist of one piece, so that the grooves only exist in the space of the individual poles are. 5 are the axial bolts for fastening the poles inserted into the grooves, for what purpose these poles with comb-shaped inner ends in the grooves engage the shaft. The grooves are expediently separated for each pole milled into the shaft in such a way that the webs 4 between the individual poles stand still. There can also be several adjacent in the axial direction Grooves are worked out at the same time. A tool used for this purpose has expediently by 90 ° against each other in the circumferential direction and by a groove division Turning tools offset from one another in the axial direction. Also several next to each other arranged milling cutters can be used for this. The diameter of the shaft can at the bottom of the individual grooves can be reduced in size safely, as by the webs 4 a much greater increase in the moment of inertia is achieved.

Gemäß der Erfindung ist eine bessere Ausnutzung von Läufern bestimmter Größe möglich. Wegen der Vergrößerung des Trägheitsmomentes der Welle können nämlich die Umdrehungszahl und damit die kritische Drehzahl bzw. die Maschinenlänge, insbesondere bei gleichbleibender kritischer Drehzahl, vergrößert und damit eine größere Leistung bei gleichbleibender Läufergröße bzw. die gleiche Leistung in einem kleineren Läufer untergebracht werden.According to the invention, better utilization of runners is certain Size possible. Because of the increase in the moment of inertia of the shaft, namely the number of revolutions and thus the critical speed or the machine length, in particular while the critical speed remains the same, it is increased and thus a greater output with the same runner size or the same performance in a smaller runner be accommodated.

Claims (4)

PATENTANSPRÜCHE: i. Läufer mit am Innenende kammartig ausgebildeten, in Rillen der Welle festgehaltenen Sdhenkelpo.len, dadurdh gekennzeichnet, daß in den Rillen zwischen den Polen Stege angeordnet sind. PATENT CLAIMS: i. Runner with a comb-like design at the inner end, held in the grooves of the shaft, characterized by the fact that webs are arranged in the grooves between the poles. 2. Läufer nach Anspruch i, dadurch gekennzeichnet, tlaß die Stege mit der Welle aus einem Stück bestehen. 2. Runner according to claim i, characterized in that the webs are made in one piece with the shaft. 3. Läufer nach Anspruch 2, dadurch gekennzeichnet, daß die Rillen für jeden Pol getrennt in der Weise eingefräst werden, daß die Stege stehenbleiben. 3. Rotor according to Claim 2, characterized in that the grooves are separate for each pole be milled in such a way that the webs remain. 4. Läufer nach Anspruch i, dadurch gekennzeichnet, daß die Stege zum Festhalten der Pole verwendet werden.4. Runner according to claim i, characterized in that the webs are used to hold the poles in place.
DES36657D 1942-06-25 1942-06-25 Runner with salient poles held in grooves in the shaft Expired DE925415C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES36657D DE925415C (en) 1942-06-25 1942-06-25 Runner with salient poles held in grooves in the shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES36657D DE925415C (en) 1942-06-25 1942-06-25 Runner with salient poles held in grooves in the shaft

Publications (1)

Publication Number Publication Date
DE925415C true DE925415C (en) 1955-03-21

Family

ID=7482290

Family Applications (1)

Application Number Title Priority Date Filing Date
DES36657D Expired DE925415C (en) 1942-06-25 1942-06-25 Runner with salient poles held in grooves in the shaft

Country Status (1)

Country Link
DE (1) DE925415C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1128912B (en) * 1959-12-08 1962-05-03 Oerlikon Maschf Pole wheel for electrical machines with claw fastening of the poles
DE102004054277A1 (en) * 2004-11-10 2006-05-24 Minebea Co., Ltd. Rotor assembly for an electric machine and method of manufacturing a rotor assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1128912B (en) * 1959-12-08 1962-05-03 Oerlikon Maschf Pole wheel for electrical machines with claw fastening of the poles
DE102004054277A1 (en) * 2004-11-10 2006-05-24 Minebea Co., Ltd. Rotor assembly for an electric machine and method of manufacturing a rotor assembly

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