DE581451C - Device to avoid brush noises in commutator machines with alternating directions of rotation, especially in rail motors - Google Patents
Device to avoid brush noises in commutator machines with alternating directions of rotation, especially in rail motorsInfo
- Publication number
- DE581451C DE581451C DES82601D DES0082601D DE581451C DE 581451 C DE581451 C DE 581451C DE S82601 D DES82601 D DE S82601D DE S0082601 D DES0082601 D DE S0082601D DE 581451 C DE581451 C DE 581451C
- Authority
- DE
- Germany
- Prior art keywords
- brushes
- rotation
- brush
- machine according
- angle
- 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
- H02K13/10—Arrangements of brushes or commutators specially adapted for improving commutation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AW 27. JULI 1933ISSUED AW JULY 27, 1933
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
M581451 KLASSE 21 di GRUPPE 64o2 M 581451 CLASS 21 di GROUP 64o2
Patentiert im Deutschen Reiche vom 8. November 1927 abPatented in the German Empire on November 8, 1927
Bei Kommutatormaschine!! macht sich das durch Vibration der Bürsten verursachte Geräusch
häufig· in störender Weise bemerkbar. Dies ist besonders der Fall bei Bahnmotoren,
die mit wechselnder Geschwindigkeit und in beiden Drehrichtungen laufen.
. Gemäß der Erfindung· wer den diese Bürstengeräusche dadurch vermieden, daß die Bürsten
gegen den Radius des Kollektors um einen Winkel geneigt angeordnet werden, der größer
als der Reibungswinkel ist. Hierbei können die Bürsten in der Weise geneigt sein,
daß die Richtungen der Bürstenachsen zu der Richtung der Maschinenachse senkrecht
stehen, wie dies in Abb. 1 der Zeichnung dargestellt ist, oder noch besser zur Richtung
dieser Achse geneigt sind entsprechend Abb. 2. Bei dieser Anordnung sind also die
Bürsten auch etwas seitwärts geneigt, so daß die Bürstenkanten einen Winkel mit den Lamellen
des Kommutators einschließen.With commutator machine !! the noise caused by the vibration of the brushes is often noticeable in a disturbing way. This is particularly the case with rail motors that run at changing speeds and in both directions of rotation.
. According to the invention, these brush noises are avoided in that the brushes are inclined relative to the radius of the collector at an angle which is greater than the angle of friction. The brushes can be inclined in such a way that the directions of the brush axes are perpendicular to the direction of the machine axis, as shown in Fig. 1 of the drawing, or even better are inclined to the direction of this axis as shown in Fig. 2. In this case Arrangement so the brushes are inclined slightly to the side so that the brush edges form an angle with the lamellae of the commutator.
Eine Neigung der Bürstenkante gegen die Kommutatorlamellen kann auch durch die aus Abb. 3 ersichtliche Anordnung erreicht wer-An inclination of the brush edge against the commutator bars can also be caused by the Fig. 3 visible arrangement can be achieved
Mit besonderem Vorteil können bei Maschinen mit mehr als zwei in der Umfangsrichtung aufeinanderfolgenden Bürsten die in der Umfangsrichtung aufeinanderfolgenden Bürsten in bezug aufeinander entgegengesetzt geneigt zur Schleiffläche angeordnet werden, wie dies in Abb. 4 gezeigt ist. Hierbei wird zweckmäßig der Winkel zwischen den Bürstenkanten der aufeinanderfolgenden Bürsten und den Lamellen gleichgehalten.It is particularly advantageous for machines with more than two in the circumferential direction consecutive brushes the brushes which follow one another in the circumferential direction are opposite in relation to one another be inclined to the grinding surface, as shown in Fig. 4. Here is expediently the angle between the brush edges of the successive brushes and kept the same as the slats.
Die Schrägstellung der Bürsten in der Weise, daß ihre Richtung auf der Maschinenachse senkrecht steht, ist an sich bekannt und wird z. B. bei den sogenannten Reaktionshaltern verwendet, um unter Zusammenwirken der auf die Bürste einerseits vom Kommutator, (andererseits von der Alipreßeinrichtung ausgeübten Kräfte eine möglichst reibungslose Führung der Bürste in dem Halter zu erreichen und so die Kommutierungsverhältnisse zu verbessern. Diese Anordnung hat jedoch bisher ausschließlich bei nur für eine Drehrichtung bestimmten Maschinen Anwendung gefunden, da ja nur bei diesen das gewünschte Zusammenwirken der genannten Kräfte ^eintreten kann. Für Maschinen mit wechselnder Drehrichtung sind jedoch bisher ausschließlich in streng radialer Richtung angeordnete Bürsten verwendet worden.The inclination of the brushes in such a way that their direction on the machine axis stands vertically, is known per se and is z. B. used in the so-called reaction holders to work together the one on the brush from the commutator on the one hand, (on the other hand from the aluminum pressing device forces exerted to guide the brush in the holder as smoothly as possible achieve and thus improve the commutation ratios. However, this arrangement has previously only used in machines designed for only one direction of rotation found, since it is only with these that the desired interaction of the forces mentioned can occur. For machines with alternating directions of rotation have so far only been arranged in a strictly radial direction Brushes have been used.
Infolge der Neigung werden die Erschütterungen der Bürsten beim Laufen der Maschine vermieden, wobei etwa eine ähnliche Erscheinung auftritt wie bei dem Gleiten, einer KreideAs a result of the inclination, the brushes shake when the machine is running avoided, whereby a similar phenomenon occurs as with the sliding of a chalk
*) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor:
Heinrich Osborne in Berlin-Wilmersdorf.Heinrich Osborne in Berlin-Wilmersdorf.
an einer Tafel, die in schräger Haltung einwandfrei gleitet, bei annähernd senkrechter Haltung jedoch stoßweise abspringt, was vielfach zum Zeichnen punktierter Linien ausgenutzt wird.on a board that glides perfectly in an inclined position, when it is almost vertical Posture, however, jumps off in jerks, which is often used to draw dotted lines will.
Bei Maschinen, die gemäß der Erfindung ausgeführt sind, sind demnach die Bürstengeräusche völlig vermieden und infolge des ruhigen Anliegens der Bürsten auch die Kommutierungsverhältnisse wesentlich verbessert. Außerdem wird die Lebensdauer der Kohle erheblich verlängert, da keine nennenswerten Erschütterungen der Bürsten auftreten und diese daher auch nicht abbröckeln können.In machines designed according to the invention, the brush noises are accordingly completely avoided and, as a result of the smooth contact of the brushes, also the commutation conditions much improved. In addition, the life of the coal is considerably extended, since there are no significant ones Vibrations of the brushes occur and they cannot crumble off.
Von besonderer Bedeutung ist die Erfindung bei Bahnmotoren, bei denen einerseits eine Verlängerung der Lebensdauer der Bürsten besonders wünschenswert ist, andererseits die Bürstengeräusche, deren restlose BeseitigungThe invention is of particular importance in rail engines, in which on the one hand a Extending the life of the brushes is particularly desirable, on the other hand Brush noises, their complete elimination
ao bisher nicht immer möglich gewesen ist, sich aber häufig sehr störend bemerkbar machen.ao has not always been possible so far, but is often very annoying.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES82601D DE581451C (en) | 1927-11-08 | 1927-11-08 | Device to avoid brush noises in commutator machines with alternating directions of rotation, especially in rail motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES82601D DE581451C (en) | 1927-11-08 | 1927-11-08 | Device to avoid brush noises in commutator machines with alternating directions of rotation, especially in rail motors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE581451C true DE581451C (en) | 1933-07-27 |
Family
ID=7510463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES82601D Expired DE581451C (en) | 1927-11-08 | 1927-11-08 | Device to avoid brush noises in commutator machines with alternating directions of rotation, especially in rail motors |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE581451C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1122625B (en) * | 1956-01-02 | 1962-01-25 | Hollandse Signaalapparaten Bv | Electrical apparatus with a brush to be applied by a compression spring to a commutator or slip ring and a brush holder |
DE1197973B (en) * | 1954-11-03 | 1965-08-05 | Nikolaus Laing | Continuous brush holder for commutator machines |
DE3239664A1 (en) * | 1981-10-28 | 1983-05-11 | Mabuchi Motor Co.,Ltd., Tokyo | ELECTRIC SMALL MOTOR |
DE4329753A1 (en) * | 1993-09-03 | 1995-03-09 | Teves Gmbh Alfred | Carbon brush for an electric motor |
WO1996041410A1 (en) * | 1995-06-07 | 1996-12-19 | Itt Automotive Electrical Systems, Inc. | Reduced speed growth in windshield wiper motor |
WO1998006163A1 (en) * | 1996-08-07 | 1998-02-12 | Robert Bosch Gmbh | Direct current motor commutation device |
DE10058742A1 (en) * | 2000-11-27 | 2002-05-29 | Bsh Bosch Siemens Hausgeraete | Brush for electrodynamic machine has resistance layer between sub-brushes at least partly inclined to edge of commutator lamella in multilayer brush contact region with commutator surface |
DE10058872A1 (en) * | 2000-11-27 | 2002-06-06 | Bsh Bosch Siemens Hausgeraete | Brush for dynamo-electrical machine, especially electric motor, has incident brush edge at least partly inclined with respect to lamella or lamella edge of commutator |
-
1927
- 1927-11-08 DE DES82601D patent/DE581451C/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1197973B (en) * | 1954-11-03 | 1965-08-05 | Nikolaus Laing | Continuous brush holder for commutator machines |
DE1122625B (en) * | 1956-01-02 | 1962-01-25 | Hollandse Signaalapparaten Bv | Electrical apparatus with a brush to be applied by a compression spring to a commutator or slip ring and a brush holder |
DE3239664A1 (en) * | 1981-10-28 | 1983-05-11 | Mabuchi Motor Co.,Ltd., Tokyo | ELECTRIC SMALL MOTOR |
DE4329753A1 (en) * | 1993-09-03 | 1995-03-09 | Teves Gmbh Alfred | Carbon brush for an electric motor |
US5808394A (en) * | 1993-09-03 | 1998-09-15 | Itt Automotive Europe Gmbh | Carbon brush for an electric motor |
WO1996041410A1 (en) * | 1995-06-07 | 1996-12-19 | Itt Automotive Electrical Systems, Inc. | Reduced speed growth in windshield wiper motor |
US5852352A (en) * | 1995-06-07 | 1998-12-22 | Itt Automotive Electrical Systems, Inc. | Reduced speed growth in windshield wiper motor |
WO1998006163A1 (en) * | 1996-08-07 | 1998-02-12 | Robert Bosch Gmbh | Direct current motor commutation device |
US6288468B1 (en) | 1996-08-07 | 2001-09-11 | Robert Bosch Gmbh | Direct current motor commutation device |
DE10058742A1 (en) * | 2000-11-27 | 2002-05-29 | Bsh Bosch Siemens Hausgeraete | Brush for electrodynamic machine has resistance layer between sub-brushes at least partly inclined to edge of commutator lamella in multilayer brush contact region with commutator surface |
DE10058872A1 (en) * | 2000-11-27 | 2002-06-06 | Bsh Bosch Siemens Hausgeraete | Brush for dynamo-electrical machine, especially electric motor, has incident brush edge at least partly inclined with respect to lamella or lamella edge of commutator |
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