DE407494C - Safety device for electric motors - Google Patents
Safety device for electric motorsInfo
- Publication number
- DE407494C DE407494C DEF50865D DEF0050865D DE407494C DE 407494 C DE407494 C DE 407494C DE F50865 D DEF50865 D DE F50865D DE F0050865 D DEF0050865 D DE F0050865D DE 407494 C DE407494 C DE 407494C
- Authority
- DE
- Germany
- Prior art keywords
- ring
- electric motors
- safety device
- contact
- rings
- 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
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AM 29. DEZEMBER 1924ISSUED ON DECEMBER 29, 1924
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
- Jlft 407494 KLASSE 21 d GRUPPE- Jlft 407494 CLASS 21 d GROUP
VIIIj2Id1)VIIIj 2 Id 1 )
Wilhelm Flüchter in Duisburg-Beeck.Wilhelm Flüchter in Duisburg-Beeck.
Sicherheitsvorrichtung für Elektromotoren.Safety device for electric motors.
Es sind Sicherheitsvorrichtungen für Elek tromotoren bekannt geworden, bei denen mittels eines auf der Motorwelle angeordneten Kontaktringes und die Welle umgebender "Lageänderung der Weilen ein Stromkreis geschlossen wird, der seinerseits eine Alarmcder Ausschaltvorrichtung zum Ansprechen bringt. Nach den bisherigen VorschlägenThere are safety devices for elec Electric motors have become known in which by means of a arranged on the motor shaft Contact ring and the shaft surrounding "change in position of the while a circuit is closed is, in turn, an alarmcder switch-off device to respond brings. According to the previous proposals
5 feststehender Gegenkontakte bei übermäßiger ! wenden diese Sicherheitsvorrichtungen so io5 fixed mating contacts with excessive! apply these safety devices so io
ausgeführt, daß zwei nebeneinanderliegende Kontaktringe bei einem Senken der Welle durch einen auf der Welle sitzenden Ring überbrückt werden und dadurch den eben erwähnten Stromschluß herbeiführen.executed that two adjacent contact rings when lowering the shaft be bridged by a ring sitting on the shaft and thus the one just mentioned Bring a short circuit.
Diese Einrichtungen sind insofern unvollkommen, weil sie nur dann in Wirksamkeit treten, wenn eine übermäßige Lageänderung senkrecht zu ihrer Achse eintritt. Da nunThese bodies are imperfect in that they are only effective occur when an excessive change in position occurs perpendicular to its axis. Because now
ίο aber auch in achsialer Richtung übermäßige Verschiebungen eintreten können', welche Veranlassung zu Betriebsstörungen geben können, so muß danach gestrebt werden, auch in solchen Fällen die Sicherheitsvorrichtung wirken zu lassen.ίο but also excessive in the axial direction Shifts can occur 'which give rise to operational disruptions can, so must be strived for, the safety device even in such cases let it work.
Erfindungsgemäß ist nun die Sicherheitsvorrichtung so ausgebildet, daß der sich drehende Kontaktring im Querschnitt winkelförmig ist und die feststehenden Kontakte aus einem in Segmente abwechselnder Polarität unterteilten Ring bestehen. Zweckmäßig führt man die Einrichtung so aus, daß der vorspringende Teil des rechtwinkligen Ringes zwischen zwei Segmentringen angeordnet ist, die als Begrenzung für die Achsialverschie-" bung der Welle anzusehen sind.According to the invention, the safety device is now designed so that the rotating contact ring is angular in cross section and the fixed contacts consist of a ring divided into segments of alternating polarity. Appropriate the device is carried out so that the protruding part of the right-angled ring is arranged between two segment rings, which act as a limitation for the axial displacement " exercise of the wave are to be seen.
In der Zeichnung ist eine mögliche Au1S-führungsform schematisch dargestellt, und zwar zeigt:In the drawing, a possible Au 1 S guide form is shown schematically, namely shows:
Abb. ι die Vorrichtung im Längsschnitt, wozuFig. Ι the device in longitudinal section, including
Abb. 2 eine Seitenansicht erkennen läßt. In Abb. ι sitzt auf der Welle ι durch einen Isolierring 2 getrennt das winkelförmige Stromschlußstück 3. Beidseitig zu diesem befindet sich der in Segmente verschiedener Polarität unterteilte Ring 4 und 5. Auf den Ring 4 kann durch ein Millimetergewinde die den Ring 5 tragende Hülse 6 aufgeschraubt werden und damit die Entfernung y reguliert werden, so daß bei übermäßig großer achsialer Verschiebung der Motorwelle die Fläche B und C mit dem Segmentringe in Berührung kommt und der Stromschluß zur Betätigung einer Alarm- oder Ausschaltvorrichtung herbeigeführt wird. Erreicht das Wellenspiel das in der Skizze mit χ bezeichnete Ausmaß, so kommt Fläche A mit der inneren Fläche D des Segmentringes 4 in Berührung und bringt die Vorrichtung zum Ansprechen.Fig. 2 shows a side view. In Fig. Ι sits on the shaft ι separated by an insulating ring 2, the angular current connection piece 3. On both sides of this is the ring 4 and 5, which is divided into segments of different polarity are screwed on and thus the distance y can be regulated so that in the event of an excessively large axial displacement of the motor shaft, the surfaces B and C come into contact with the segment rings and the current circuit is brought about to actuate an alarm or switch-off device. If the shaft clearance reaches the extent indicated by χ in the sketch, surface A comes into contact with inner surface D of segment ring 4 and causes the device to respond.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF50865D DE407494C (en) | 1921-12-11 | 1921-12-11 | Safety device for electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF50865D DE407494C (en) | 1921-12-11 | 1921-12-11 | Safety device for electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE407494C true DE407494C (en) | 1924-12-29 |
Family
ID=7104136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEF50865D Expired DE407494C (en) | 1921-12-11 | 1921-12-11 | Safety device for electric motors |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE407494C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1092112B (en) * | 1959-07-18 | 1960-11-03 | Philips Patentverwaltung | Device for monitoring and safeguarding the operation of fast rotating electrical machines with vertical shafts in the event of bearing damage |
-
1921
- 1921-12-11 DE DEF50865D patent/DE407494C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1092112B (en) * | 1959-07-18 | 1960-11-03 | Philips Patentverwaltung | Device for monitoring and safeguarding the operation of fast rotating electrical machines with vertical shafts in the event of bearing damage |
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