DE198854C

DE198854C -

Info

Publication number: DE198854C
Application number: DENDAT198854D
Authority: DE

Description

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KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- M 198854 KLASSE 21 c. GRUPPE- M 198854 CLASS 21 c. GROUP

Motoranlasser mit mehrteiliger Walze. Patentiert im Deutschen Reiche vom 21. November 1906 ab.Motor starter with multi-part roller. Patented in the German Empire on November 21, 1906.

Um bei Beginn der Rückwärtsdrehung der Walze eines Schalters sofort eine Stromunterbrechung zu erhalten, so daß bei weiterem Rückwärtsdrehen keine Funken mehr auftreten, hat man bereits einen Stromunterbrecher in besonderer Weise mit der Walze gekuppelt.To immediately interrupt the power at the start of the reverse rotation of the roller of a switch to get so that no more sparks occur with further reverse rotation, you already have a circuit breaker coupled with the roller in a special way.

Gemäß der Erfindung wird derselbe Zweck durch Verwendung einer mehrteiligen Schaltwalze erreicht, von der ein Teil mit der Anlaßkurbel starr, dei andere in seiner jeweiligen Lage zu den festen Teilen des Anlassers durch Reibung festgehaltene Walzenteil mit Spiel mit der Anlaßkurbel gekuppelt ist.According to the invention, the same purpose is achieved by using a multi-part shift drum one part of which is rigid with the starter crank, the other in its respective Location to the fixed parts of the starter with the roller part held by friction Play is coupled with the starter crank.

Ferner werden durch die verschiedene Lage der Walzenteile zueinander im Motorstromkreise mittelbar oder unmittelbar liegende Hilfskontakte miteinander in leitende Verbindung gebracht oder voneinander entfernt.Furthermore, due to the different positions of the roller parts in relation to one another in the motor circuit Directly or indirectly lying auxiliary contacts with one another in conductive connection brought or removed from each other.

Die Zeichnung stellt als Ausführungsbeispiel der Erfindung ein Schaltungsschema mit der Abwicklung einer geteilten Fahrwalze dar, die nicht nur beim Zurückdrehen, sondern auch beim Loslassen der Schaltkurbel und bei zeitweisem Ausbleiben des Fahrstromes eine Stromunterbrechung ergibt, die erst nach Zurückdrehen der Fahrkurbel in die Nullstellung wieder aufgehoben werden kann. Schließlich wird hierbei der mit Spiel gekuppelte Walzenteil anstatt durch Reibung durch eine in Nuten einschnappende Rolle jeweilig festgehalten.The drawing represents a circuit diagram as an embodiment of the invention with the unwinding of a divided drive roller, which not only when turning back, but also when releasing the crank and when there is temporarily no power a power interruption results, which are only canceled after turning the crank back to the zero position can. Ultimately, this is where the roller part coupled with play becomes instead of friction held in place by a roller that snaps into the grooves.

i, 2 sind die mit den Stromschlußstücken 3,4 versehenen Teile der Fahrwalze, von denen der Teil 1 mit der nicht dargestellten, durch die Schaltkurbel bewegten Welle fest verbunden ist, der andere Teil 2 lose auf derselben Welle sitzt. An dem Stromschlußstücke 4 sitzt ein Kontaktfinger 5, der beim Drehen der Walze 1 in der Pfeilrichtung das Stromschlußstück 3 berührt. Walze 1 trägt eine Sperrklinke 6, die in der (gezeichneten) Nullstellung durch einen am Schaltergehäuse sitzenden Anschlag 7 angehoben wird. Der Sperrklinke gegenüber sitzt an der Walze 2 eine Nase 8; außerdem sind an dem Walzenteile 2 zwei Anschläge 9, 10 befestigt, zwischen denen der an der Walze 1 sitzende Anschlag 11 spielt. Schließlich ist zwischen beiden Walzen eine Feder 12 angebracht, die sie zueinander stets in die gezeichnete Lage zu bringen sucht.i, 2 are those with the current connectors 3,4 provided parts of the roller, of which part 1 with the not shown, through the crank is firmly connected to the moving shaft, the other part 2 loosely on the same Shaft sits. On the current connection piece 4 sits a contact finger 5, which when the roller 1 rotates in the direction of the arrow the current connector 3 touches. Roller 1 carries a pawl 6, which is in the (drawn) Zero position is raised by a stop 7 seated on the switch housing. The pawl opposite sits on the roller 2, a nose 8; in addition, there are roller parts on the 2 two stops 9, 10 attached, between which the one sitting on the roller 1 Stop 11 plays. Finally, a spring 12 is attached between the two rollers, the always seeks to bring them to each other in the position shown.

Walze 2 trägt' an ihrem unteren Rande entsprechend den Fahrstellungen Einschnitte, in die ein Sperrhebel 13 eingreift, der in seiner Sperrlage durch ein von Ruhestrom durchflossenes Solenoid 14 entgegen der Kraft einer Feder 15 gehalten wird. 16 bis 21 sind auf den Walzen schleifende feste Kontaktfinger, die mit den Solenoiden 22 bis 26 zur Steuerung der Schalter 27 bis 31 dienen. Letztere schließen nacheinander die vor den Motor 36 geschalteten Widerstände 32 bis 35 kurz.Roller 2 has incisions on its lower edge according to the driving positions, into which a locking lever 13 engages, which is in its locked position by a quiescent current flowed through solenoid 14 is held against the force of a spring 15. 16 to 21 are fixed contact fingers sliding on the rollers, which are connected to the solenoids 22 to 26 to control the switches 27 to 31 are used. The latter close the one after the other before the motor 36 connected resistors 32 to 35 short.

Die Wirkungsweise ist folgende:The mode of action is as follows:

In der gezeichneten Nullstellung fließt nur Strom von der Oberleitung 2>7 über den Stromabnehmer 38 durch das Solenoid 14 zur Erde. Wird die Walze 1 gedreht, so bleibt bei gleichzeitiger Anspannung der Feder 12 die Walze 2 in ihrer Lage, bis der Anschlag 11 gegen den Anschlag 9 stößt;In the drawn zero position only current flows from the overhead line 2> 7 via the current collector 38 through the solenoid 14 to earth. If the roller 1 is rotated, while the spring 12 is simultaneously tensioned, the roller 2 remains in its position until the stop 11 strikes the stop 9;

Claims

only then is roller 2 taken into position I while overcoming the force of the solenoid 14. During this movement, the current connection piece 3 comes into contact with the contact fingers 5 and 16 and the current connection piece 4 comes into contact with the contact finger 17. As a result, a control current flows from the overhead line 37 via current collector 38, finger 16, current connector 3, contact finger 5, current connector 4, finger 17 and solenoid 22 to earth, and the solenoid 22 closes the working circuit by means of switch 27: overhead line 37, current collector 38, Switch 27, resistors 32 J5 through 35, motor 36, ground. By rotating the roller 1 further, roller 2 is successively brought into the switching positions II to V, in which the resistors 32 to 35 are switched off one after the other. If the operator lets go of the crank, the roller 1 is rotated backwards by the spring 12 until the stop 11 strikes the stop 10 and the pawl 6 lies behind the nose 8. Here, the contact finger 5 slides down from the current connector 3 and the control circuit as well as the working circuit are interrupted as a result. In the event of an accident involving the driver, the motor current is therefore automatically switched off. If the driver wants to switch on again, he must first bring the switch to the neutral position, since in this position alone the pawl 6 is lifted by the stop 7 seated on the housing and the movement between the rollers 1 and 2 is released. If the driver holds the switch in any driving position and the contact line is temporarily de-energized, for example by an automatic high-current switch in the power station, the pulling force of the solenoid 14 ceases, the spring 15 pulls the pawl 13 out of the relevant incision, and the spring 12 the roller 2 will rotate forward until stop 10 hits stop 11. Here again the pawl 6 is placed behind the nose 8, and the driver is therefore forced to start switching the motor on again in the zero position, even if the overhead line current is temporarily interrupted. 55 godparents τ claims:

1. Motor starter with multi-part roller, characterized in that depending on the Position of a roller part (1) rigidly coupled to the starter crank to another in its respective position to the fixed parts of the starter by friction held and coupled with play with the starter crank roller part (2) in Motor circuits directly or indirectly connected auxiliary contacts (3, 5) with one another be brought into conductive connection or separated from each other.

2. Motor starter according to claim 1, characterized in that between the Roller parts (1, 2) attached a spring (12) tensioned by switching on is which automatically interrupts when the crank is released of the motor current at the auxiliary switch (3, 5) necessary movement of the roller parts causes against each other.

3. Motor starter according to claim 1, characterized in that the for holding of the roller part (2) which is movable in relation to the crank handle, necessary friction by pressing a locking lever (13) is brought about by means of quiescent current.

4. Motor starter according to claim 1, characterized in that the roller parts (1, 2) in all positions of the travel crank with the exception of the zero position after returning to their mutual starting position, in which the auxiliary switch (3, 5) is open, are coupled to one another, so that they are returned to the neutral position for their uncoupling Need to become.

1 sheet of drawings.