DE1053644B - Small electric machine - Google Patents

Small electric machine

Info

Publication number
DE1053644B
DE1053644B DEM35027A DEM0035027A DE1053644B DE 1053644 B DE1053644 B DE 1053644B DE M35027 A DEM35027 A DE M35027A DE M0035027 A DEM0035027 A DE M0035027A DE 1053644 B DE1053644 B DE 1053644B
Authority
DE
Germany
Prior art keywords
bearing
hub
rotor
electric machine
small electric
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.)
Pending
Application number
DEM35027A
Other languages
German (de)
Inventor
Willi Vester
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.)
Gebr Maerklin and Cie GmbH
Original Assignee
Gebr Maerklin and Cie 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 Gebr Maerklin and Cie GmbH filed Critical Gebr Maerklin and Cie GmbH
Priority to DEM35027A priority Critical patent/DE1053644B/en
Publication of DE1053644B publication Critical patent/DE1053644B/en
Pending legal-status Critical Current

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
    • H02K5/167Means 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Description

Elektro-Kleinmaschine Die Erfindung betrifft eine Elektro-Kleinmaschine mit ein Rotorlager tragendem Gehäuse und mit einem Lagerschild, der aus einer Lagernabe für das zweite Rotorlager, einem Befestigungsflansch und einer dünnen, elastischen Nabenscheibe besteht.Small electric machine The invention relates to a small electric machine with a housing carrying a rotor bearing and with a bearing shield consisting of a bearing hub for the second rotor bearing, a mounting flange and a thin, elastic one Hub washer.

Bekannt sind Elektro-Kleinmaschinen, bei denen beide Rotorlager als nicht elastische Körper ausgebildet sind. Selbst bei Verwendung von genau hergestellten: Formen und Lehren ist es bei solchen Maschinen nötig, die Lagerlöcher (!es doppelt gelagerten Rotors im Gehäuse und im Lagerschild gemeinsam, zu bohren.Small electrical machines are known in which both rotor bearings as non-elastic bodies are formed. Even when using precisely manufactured: With such machines it is necessary to use forms and gauges to make the bearing holes (! the rotor in bearings in the housing and in the end shield together.

Bekannt ist es auch, die Lagerschilde als dünnwandige Scheiben, auszuführen und sie mit Durchbrechungen zu versehen, daß die Lagerschilde. als Kreuzgelenke wirken. Bei einer Ausführung dieser Bauart sind beide Rotorlager an solchen Lagerschilden befestigt, die mit dem Gehäuse und einem als Spurlager dienenden Deckel verschraubt sind.It is also known to design the end shields as thin-walled disks and to provide them with openings that the end shields. as universal joints works. In an embodiment of this type, both rotor bearings are on such end shields attached, which is screwed to the housing and a cover serving as a thrust bearing are.

Demgegenüber ist beim Erfindungsgegenstand die Nabenscheibe mittels zweier T-förmiger Schlitze eingeschlitzt, so daß deren Querschenkel, die sich parallel zu der Ebene erstrecken, in der die Achsen. der Nabe und der Bürstenlager der Bürstenhalter verlaufen, die Federbrücke begrenzen. Die als Statordeckel dienende Nabenscheibe bildet eines der beiden Spurlager für den Rotor.In contrast, in the subject matter of the invention, the hub disk is by means of two T-shaped slots slotted so that their transverse legs, which are parallel extend to the plane in which the axes. the hub and the brush bearing of the brush holder run, limit the spring bridge. The hub disc serving as a stator cover forms one of the two thrust bearings for the rotor.

Der Erfindungsgegenstand bietet somit den Vorteil, daß sich die aus Isolierstoff (z. B. Kunstharz) bestehende Nabenscheibe elastisch in die durch die Lagerbohrung des Gehäuses bestimmte Flucht des Rotors verklemmungsfrei einstellt und dazu sämtliche Bauteile trägt, die zur Bürstenhalterung nötig sind. Es ergibt sich dabei der Vorteil, daß der Lagerschild, in der Mengenfertigung einfach herstellbar und, mit seinem Zubehör ausrüstbar ist. Die kreuzweise gerichtete Schlitzung bewirkt ein weiches Einstellen des Rotors im Betrieb auf einen reibungsarmen Lauf der Maschine, ohne daß darunter die Aufnahme der Lagerkräfte durch das Gehäuse leidet.The subject matter of the invention thus offers the advantage that the Insulating material (e.g. synthetic resin) existing hub washer elastically into the through the Bearing bore of the housing sets certain alignment of the rotor without jamming and carries all the components that are necessary for the brush holder. It results The advantage here is that the end shield can be easily manufactured in volume production and can be equipped with its accessories. The cross-directed slitting causes a smooth setting of the rotor during operation for low-friction running of the machine, without that the absorption of the bearing forces by the housing suffers.

In der Zeichnung sind Ausführungsbeispiele dargestellt.Exemplary embodiments are shown in the drawing.

Bild 1 zeigt eine Vorderansicht und Bild 2 einem Querschnitt nach Linie A-A von. Bild 1; Bild 3 zeigt die: Vorderansicht eines Lagerschildes. Die Hauptteile der Kleinmaschine sind, das Gehäuse 1 aus Zinkspritzguß, der Lagerschild mit den Teilen 2a, 2b, 2 c aus wärmebildsamem, nicht aushärtbarean Kunstharz und der Rotor 3 mit den Lagerzapfen 3 a, 3 b aus Stahl, der Kollektorscheibe 3 c und, dem Zahnrad 3 d. Der Lagerschild trägt die Bürstenhalter 4, die mittels der Zungen 4a, 4b an die Nabenscheibe 2 b des Lagerschildes aasgeklemmt sind. Die Bürsten 5 sind durch. die Schenkelfedern. 6 belastet. Der Lagerzapfen. 3 b ist in der Nabe 2 c gelagert. Der Befestigungsflansch 2 a, des Lagerschildes ist am Gehäuse 1 befestigt, z. B. mittels nicht dargestellter Schrauben und Stufte angeschraubt.Figure 1 shows a front view and Figure 2 shows a cross section Line A-A from. Image 1; Figure 3 shows the: Front view of a bearing plate. the The main parts of the small machine are the zinc die-cast housing 1 and the end shield with parts 2a, 2b, 2c made of heat-buildable, non-hardening synthetic resin and the rotor 3 with the bearing journals 3 a, 3 b made of steel, the collector disk 3 c and, the gear 3 d. The end shield carries the brush holder 4, which by means of the tongues 4a, 4b are clamped onto the hub disk 2b of the end shield. The brushes 5 are through. the leg springs. 6 charged. The journal. 3 b is in the hub 2 c stored. The mounting flange 2 a of the end shield is attached to the housing 1, z. B. screwed by means of screws and steps, not shown.

Die Nabenscheibe 2 b wirkt als Blattfeder, da sie blattdünn ist und beispielsweise eine Dicke von 0,8 mm hat, so daß sich die Nabe: ein wenig verschwenkt, wenn: sie gegenüber der Achse zu sehr schräg gestellt ist, die die Nabel a dem Lagerzapfen 3a. und damit dem Rotor zuweist, zumal die günstige Schrägeinstellung des Lagerschildes durch Passungsspiel für die Schrauben und Stifte beim Zusammenschrauben. des Gehäuses und des Lagerschildes erleichtert wird.The hub disk 2 b acts as a leaf spring because it is thin and leaf for example has a thickness of 0.8 mm, so that the hub: swivels a little, if: it is too inclined to the axis that the navel a to the bearing pin 3a. and thus assigns to the rotor, especially since the favorable inclination of the end shield due to the clearance of the screws and pins when screwing together. of the housing and the end shield is facilitated.

Die Nabenscheibe ist durch zwei T-förmige Schlitze 7 eingeschlitzt, so daß sich die Nabe der Flucht der Rotorwellenachse anpassen kann, ohne daß die Rotorwelle eine Verbiegung erleidet. Durch die Schlitze 7 wird die Federbrücke 2 d gebildet.The hub disc is slotted through two T-shaped slots 7, so that the hub can adapt to the alignment of the rotor shaft axis without the The rotor shaft suffers a bending. Through the slots 7, the spring bridge 2 d formed.

Claims (1)

PATENTANSPRUCH: Elektro-Kleinmaschine mit ein. Rotorlager tragendem Gehäuse und mit einem Lagerschild, der aus einer Lagernabe für das zweite Rotorlager, einem Befestigungsflansch und einer dünnen, elastischen Nabenscheibe besteht, dadurch gekennzeichnet, daß die Nabenscheibe (2 b) mittels zweier T-förmiger Schlitze (7) eingeschlitzt ist, so daß deren Querschenkel, die sich parallel zu der. Ebene erstrecken, in der die Achsen der Nabe (2 c) und der Bürstenlager der Bürstenhalter (4) verlaufen, die Federbrücke (2 d) begrenzen.. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 955 526, 958. 854, 959 119; Schweizerische Patentschriften N r. 130981, 320 085; deutsches Gebrauchsmuster Nr. 1741260.PATENT CLAIM: Small electric machine with one. Rotor bearing bearing Housing and with a bearing shield, which consists of a bearing hub for the second rotor bearing, consists of a mounting flange and a thin, elastic hub washer, thereby marked, that the hub disc (2 b) by means of two T-shaped Slots (7) is slotted so that their transverse legs, which are parallel to the. Extend plane in which the axes of the hub (2 c) and the brush bearing of the Brush holders (4) run to limit the spring bridge (2 d). Considered Publications: German Patent Nos. 955 526, 958, 854, 959 119; Swiss Patent specifications no. 130981, 320 085; German utility model No. 1741260.
DEM35027A 1957-08-09 1957-08-09 Small electric machine Pending DE1053644B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM35027A DE1053644B (en) 1957-08-09 1957-08-09 Small electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM35027A DE1053644B (en) 1957-08-09 1957-08-09 Small electric machine

Publications (1)

Publication Number Publication Date
DE1053644B true DE1053644B (en) 1959-03-26

Family

ID=7302175

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM35027A Pending DE1053644B (en) 1957-08-09 1957-08-09 Small electric machine

Country Status (1)

Country Link
DE (1) DE1053644B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH130981A (en) * 1927-02-03 1929-01-15 Bosch Robert Ag End shield for small electrical machines.
DE955526C (en) * 1954-08-10 1957-01-03 Licentia Gmbh Small electric motor
DE958854C (en) * 1954-02-16 1957-02-28 Licentia Gmbh Electric drive motor with speed control by centrifugal contact controller, especially for driving office machines
DE959119C (en) * 1953-08-15 1957-02-28 Licentia Gmbh Bearing mounting for electrical machines, especially small motors
DE1741260U (en) * 1956-12-07 1957-03-14 Karl Schlimme SMALL ELECTRIC MOTOR.
CH320085A (en) * 1952-05-26 1957-03-15 Licentia Gmbh Process for the production of small electrical machines, in particular small motors

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH130981A (en) * 1927-02-03 1929-01-15 Bosch Robert Ag End shield for small electrical machines.
CH320085A (en) * 1952-05-26 1957-03-15 Licentia Gmbh Process for the production of small electrical machines, in particular small motors
DE959119C (en) * 1953-08-15 1957-02-28 Licentia Gmbh Bearing mounting for electrical machines, especially small motors
DE958854C (en) * 1954-02-16 1957-02-28 Licentia Gmbh Electric drive motor with speed control by centrifugal contact controller, especially for driving office machines
DE955526C (en) * 1954-08-10 1957-01-03 Licentia Gmbh Small electric motor
DE1741260U (en) * 1956-12-07 1957-03-14 Karl Schlimme SMALL ELECTRIC MOTOR.

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