DE761245C - Electric motor for one-hand drilling machines - Google Patents
Electric motor for one-hand drilling machinesInfo
- Publication number
- DE761245C DE761245C DED84617D DED0084617D DE761245C DE 761245 C DE761245 C DE 761245C DE D84617 D DED84617 D DE D84617D DE D0084617 D DED0084617 D DE D0084617D DE 761245 C DE761245 C DE 761245C
- Authority
- DE
- Germany
- Prior art keywords
- collector
- electric motor
- drilling machines
- guide bushes
- motor housing
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/006—Structural associations of commutators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc Machiner (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Description
Bei einer gewissen Art von Elektrowerkzeugen, welche vorzugsweise reit zwei Händen geführt «-erden müssen. beispielsweise beim Arbeiten mit Fräsern und rotierenden Feilen, ist die erste Forderung, den Maschinenkörper möglichst stabförmig und klein im Durchmesser zu gestalten. Die Unterbringung genügend langer betriebssicherer Kohlebürsten in der üblichen radialen Weise ergibt naturgemäß Schwierigkeiten, es sind daher Konstruktionen bekanntgeworden, bei denen die Magnetkerne und die Erregerspulen des eingebauten jIotors aus dem sonst üblichen radialen Raum in dem axial dem Anker sich anschließenden Raum verlegt sind. Aus dieser Raumeinteilung folgt zwangsläufig eine U-förmige Gestalt des 1lagnetgeliäuses und zweckmäßig ein Scheibenkollektor, dessen Kohlebürstenhalter parallel zur Achse in dem freien Raum zwischen den Erregerspulen sitzen und mit ihren inaktiven Enden auf das zu einer Scheibe ausgebildete Joch aufgeschraubt sind.For some type of power tool, which one is preferable ride two hands led "- must be grounded. for example when working with milling cutters and rotating files, the first requirement is to make the machine body as rod-shaped as possible and small in diameter. The accommodation for a sufficiently long period of time is more reliable Brushing carbon in the usual radial fashion naturally gives rise to difficulties in it constructions have therefore become known in which the magnetic cores and the excitation coils of the built-in jIotors from the otherwise usual radial space in the axial of the armature adjoining room have been relocated. This division of space inevitably follows a U-shaped design of the single-layer housing and, expediently, a disc collector, its carbon brush holder parallel to the axis in the free space between the excitation coils sit and with their inactive ends on the yoke formed into a disk are screwed on.
Beim Arbeiten an und in einem sperrigen Werkstück und in beschränkten Räumen, beispielsweise im Flugzeugbau, stellt man an Elektrowerkzeuge die Forderung, daß dieselben derart in der rechten Hand geführt «-erden müssen, daß nur noch das Bohrfutter in der Verlängerung der Fingerspitzen hervorragt: das Ziel ist also hier bei möglichst kleinem Durchmesser eine möglichst kurze Maschine.When working on and in a bulky workpiece and in restricted areas Broaching, for example in aircraft construction, the requirement for power tools is that they have to be guided in the right hand in such a way that only that The drill chuck protrudes in the extension of the fingertips: so the target is here The shortest possible machine with the smallest possible diameter.
Die Erfindung erfüllt diese Zielsetzung bei dem eingebauten Motor durch Verwendung des bekannten üblichen, außen geschlossenen Magnetgehäuses dadurch, daß die Kollektorbürsten für den einen größeren Durchmesser als der Anker besitzenden Plankollektor in durch das Motorgehäuse und das Ständerblechpaket sich erstreckenden achsparallelen Kohleführungsbüchsen geführt sind.The invention achieves this objective in the built-in engine by using the known, customary, externally closed magnet housing, that the collector brushes have a larger diameter than the armature Plane collector in extending through the motor housing and the stator core axially parallel carbon guide bushes are performed.
Die Zeichnung zeigt in Abb. i einen Längsschnitt und in -,'"bb. 2 einen teilweisen Querschnitt eines Ausführungsbeispiels der Erfindung.The drawing shows a longitudinal section in Fig. 1 and in -, '"Fig. 2 a partial cross-section of an embodiment of the invention.
Das becherförmige Gehäuse i aus Isolierpreßmaterial umschließt das Ständerblechpaket : um dessen 'Mantelfläche 3 und beide Stirnseiten .4. Ferner sind die beiden Kohleführungsbüchsen 3 in den Iclatienförniigen Aussparungen 6 des Ständerblechpaketes mittels der an den Stirnseiten des Blechpaketes angeordneten Augen; befestigt und von der Isolierpreßmasse gegen das Blechpaket isoliert. Von den Spiralfedern 8 werden die aus der ganzen Anordnung entsprechend lang sich ergebenden Bürstenkohlen 9 gegen den Kollektor io. 15 gedrückt, die Schrauben ii erleichtern das Auswechseln der Kohlen. Der Läufer besteht aus der Welle 1a mit Ankerblechkörper 13e Wiclzlung 14 und Scheibenkollektor io aus Isoliermasse. In die Kollelctorscheiben sind die zapfenförmigen Lamellen 15 aus Kupferkohle oder anderem z@;-eckmül3igen Material mit eingepreßt, an die Kollektorscheibe die L üfterschaufeln 16 mit angepreßt.The cup-shaped housing i made of pressed insulating material encloses the stator core: around its' outer surface 3 and both end faces .4. Furthermore, the two carbon guide bushes 3 are in the Iclatienförniigen recesses 6 of the stator core by means of the eyes arranged on the end faces of the sheet core; attached and isolated from the insulating molding compound against the laminated core. From the coil springs 8, the brush carbons 9 resulting from the entire arrangement are correspondingly long against the collector io. 15 pressed, the screws ii make it easier to change the brushes. The rotor consists of the shaft 1a with sheet metal armature 13e winding 14 and disk collector io made of insulating compound. The cone-shaped lamellas 15 made of copper carbon or other z @; - eckmül3igen material are also pressed into the collector disks, and the fan blades 16 are also pressed onto the collector disk.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED84617D DE761245C (en) | 1941-03-15 | 1941-03-15 | Electric motor for one-hand drilling machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED84617D DE761245C (en) | 1941-03-15 | 1941-03-15 | Electric motor for one-hand drilling machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE761245C true DE761245C (en) | 1953-02-23 |
Family
ID=7064138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED84617D Expired DE761245C (en) | 1941-03-15 | 1941-03-15 | Electric motor for one-hand drilling machines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE761245C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1093890B (en) * | 1957-09-18 | 1960-12-01 | Masao Kato | Electric toy motor |
WO2006053801A1 (en) * | 2004-11-17 | 2006-05-26 | Siemens Aktiengesellschaft | Fuel pump |
US7658181B2 (en) | 2004-11-17 | 2010-02-09 | Siemens Aktiengesellschaft | Delivery device for delivering fuel out of a fuel tank |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR504208A (en) * | 1919-09-10 | 1920-06-28 | Christian Pedersen | Very small volume rotating electric motor system |
FR584780A (en) * | 1923-10-26 | 1925-02-13 | Portable electric motor system directly receiving any tools for hand work |
-
1941
- 1941-03-15 DE DED84617D patent/DE761245C/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR504208A (en) * | 1919-09-10 | 1920-06-28 | Christian Pedersen | Very small volume rotating electric motor system |
FR584780A (en) * | 1923-10-26 | 1925-02-13 | Portable electric motor system directly receiving any tools for hand work |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1093890B (en) * | 1957-09-18 | 1960-12-01 | Masao Kato | Electric toy motor |
WO2006053801A1 (en) * | 2004-11-17 | 2006-05-26 | Siemens Aktiengesellschaft | Fuel pump |
US7658181B2 (en) | 2004-11-17 | 2010-02-09 | Siemens Aktiengesellschaft | Delivery device for delivering fuel out of a fuel tank |
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