EP0963592B1 - Motor drive - Google Patents

Motor drive Download PDF

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Publication number
EP0963592B1
EP0963592B1 EP98901952A EP98901952A EP0963592B1 EP 0963592 B1 EP0963592 B1 EP 0963592B1 EP 98901952 A EP98901952 A EP 98901952A EP 98901952 A EP98901952 A EP 98901952A EP 0963592 B1 EP0963592 B1 EP 0963592B1
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EP
European Patent Office
Prior art keywords
pointer
symbols
motor drive
shaft
display
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.)
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EP98901952A
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German (de)
French (fr)
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EP0963592A1 (en
Inventor
Dieter Dohnal
Josef Neumeyer
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Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
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Application filed by Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0027—Operating mechanisms
    • H01H9/0033—Operating mechanisms with means for indicating the selected tap or limiting the number of selectable taps

Definitions

  • the invention relates to a motor drive for actuating a Step switch, a diverter or a plunger coil with a position indicator.
  • Such a motor drive according to the preamble of the claim is known from the Company name "Motor drive MA 7, operating instructions”. Imprint BA 40/90 de - 0391/2000, already known to the applicant.
  • the position indicator is designed as a direct integral part of the control gear
  • a switching step indicator wheel and a position indicator wheel both of which are direct be operated within the control gear.
  • the display itself is shown on the Forehead Markings arranged on the circumferential side of the respective wheel, which correspond to the turn the corresponding wheel. The end faces are each visible from the outside in one area the markings on it can be read.
  • the switching step indicator wheel rotates, as does the cam disk of the control gear, which actuates the individual contacts by a complete rotation in each case with a switchover from one stage of the step switch or the like to an adjacent other stage in a predetermined switching sequence.
  • On its front side it is provided with markings that indicate the individual switching steps, i.e. represent the switching sequence that takes place successively during a switchover, or represent them by numbers or other symbols.
  • a green field shows the position of the cam switches.
  • the starting position of a switching step ie the steady state of the motor drive, is identified by a red center mark within the green area.
  • the position indicator wheel has numbers or the like on its front. provided that the possible switching positions of the respective tap changer or the like. correspond.
  • the position indicator wheel rotates by an angle, ie a step that corresponds to the distance between two adjacent markings, each time a switch is made from one stage of the step switch to an adjacent other stage.
  • the known position indicator thus shows in each case by means of the switching step indicating wheel in which area of the switching sequence the motor drive is currently during a changeover. It also uses the position indicator wheel to indicate the operating position (in the stationary state) of the motor drive.
  • a disadvantage of this known position indicator is the poor visualization of the switching process, ie the switching sequence to be carried out accordingly. It is not immediately recognizable whether an initiated switchover process is still at the beginning or about to be completed.
  • Another disadvantage is that the displays, which, as explained, are located on the end faces of the two wheels, cannot be seen from a greater distance. Since the two wheels are part of the control gear and the end faces cannot be made as thick as required, the numbers or other symbols cannot be enlarged due to the design.
  • the object of the invention is to provide a generic motor drive with position indicator that offers good visualization of the information, easy readability from long distances and additional information about the control ranges connected in the past.
  • a motor drive with the features of the claim.
  • An advantage of the motor drive according to the invention is that the entire display is decoupled from the control gear; there are separate display scales and these pointers for indicating the position. Another advantage is that the selected pointer arrangement makes the display more memorable, clearer and easier to recognize.
  • the pointers used for the display offer a better overview of the ratio of the current operating position within the entire possible setting or control range. They provide information at a glance as to whether the assigned tap changer or similar is located approximately in the middle or at the top or bottom of its work area.
  • the selected pointer arrangement also offers a better overview of the timing of the respective switchover; the corresponding pointer gives an easily recognizable overview of the stage within the sequence to be run when the motor drive is currently at the switchover.
  • the drag pointers provided as part of the position indicator give up a glance an information in which control area, i.e. with which operating positions, the Step switch or similar has been operated so far.
  • the scales and the pointers can be adjusted in terms of size, shape, color and font of the symbols easily adapt to the respective requirements.
  • the display by means of circular scales and Pointers are also more familiar to the human eye and contain fewer reading errors than that necessarily only small symbols on the end faces of the wheels according to the state of the Technology.
  • a first circular scale 2 the stepping scale, is provided on a display board 1.
  • symbols are provided at the same distance from one another, which correspond to the individual switching steps which have to be followed in succession during a switchover, ie the individual steps of the switching sequence. These symbols can be simple lines, numbers or other graphic characters.
  • a first pointer 3 the step pointer, is rotatably arranged on a first pointer shaft 92 guided through the display board 1.
  • a display gear 9 By means of a display gear 9 to be described, it is rotated by 360 degrees with each changeover, wherein it successively passes through or sweeps over all symbols of the first scale 2 and thus gives an indication of the current position of the motor drive during a changeover.
  • the direction of rotation of the first pointer 3 depends on the direction of rotation of the motor drive. If there are several circuits in the same direction, the first pointer 3 will pass through or "circle" the first scale 2 several times in the same direction of rotation.
  • a second scale 4 the position indicator scale, is also provided on the display board 1.
  • this second scale 4 further symbols are provided at the same distance from one another, which correspond to the individual operating positions of the tap changer or the like.
  • the individual digits 1 ... 33 were chosen for this, which correspond to 33 possible operating positions of the motor drive and thus of the assigned tap changer.
  • the symbols -16, -15, ..., -1, 0, + 1, ..., +15, +16 could also be used.
  • the individual symbols can either be arranged on the entire scale circle or, as shown in the example, only a part of it.
  • a second pointer 5, the position indicator, is rotatably arranged centrally on this second scale 4 on a second pointer shaft 97 guided through the display board 1.
  • the display gear 9, which will be described later, rotates it at every switchover by an angle which corresponds to the distance between two adjacent symbols on the second scale 4.
  • the direction of rotation of the second pointer 5 is dependent on the direction of rotation of the motor drive in the direction of "higher” or “lower".
  • the end positions "1" and "33" shown in FIG. 1 cannot be overrun by the motor drive, so the second pointer must be turned further 5 not possible beyond these symbols.
  • the second pointer 5 cannot circle the assigned scale 4 several times.
  • the second scale 4 does not have to be provided with symbols over the entire circle.
  • two trailing pointers 6, 7 are also mounted, ie coaxially with the second pointer 5, which are rotatable, but are not carried along by the pointer shaft 97 when it rotates.
  • the two drag pointers 6, 7 are arranged on both sides of the second pointer 5 and each have a driving tongue 61, 71, both of which extend into the plane of the second pointer 5.
  • the two drag pointers 6, 7 are self-locking so that they are in the position up to of which they were taken away.
  • the first drag pointer 6 thus marks the highest operating position ever reached
  • the second drag pointer 7 marks the lowest operating position ever reached.
  • the two drag pointers 6, 7 thus enclose the previously used, ie connected, control range and in a simple manner enable a well-visualized statement about the bandwidth of the control range used on the one hand and its relative position within the available overall range on the other hand.
  • Both trailing pointers 6, 7 can be reset manually, so that an initial state can be restored, for example, after a test run through all switch positions or after a revision.
  • the display gear 9 is arranged on the underside of the display board 1 and is spatially separated from the control gear.
  • a drive shaft 91 leads from the control gear into the display gear 9, which performs a rotation of 360 degrees each time the motor drive is switched over.
  • the indicator shaft 91 is directly connected to the first pointer shaft 92, which carries the first pointer 3.
  • the indicator shaft 91 is connected to the second pointer shaft 97, which carries the second pointer 5, via four gear wheels 93, 94, 95, 96 here.
  • the gear wheels 93 ...

Abstract

A position indicator for a motor drive for actuating a step switch, tap changer, or dipping coil, has a display board having front and back faces and a first circular array of symbols on the front face corresponding to individual switching phases traversed during changeover of the motor drive from one operational position into another neighboring operational position. A first shaft extending through the board centrally of the first array and defining a first axis carries a pointer at the front face rotatable about the first axis through positions aligned with the symbols. A second circular array of symbols on the front face is associated with individual possible stationary operational positions of the step switch, the tap changer, or the dipping coil. A second pointer shaft projecting through the board centrally of the second array and defining a second axis carries a second pointer at the front face rotatable about the second axis through positions aligned with the symbols of the second array. Respective trailing pointers pivotal on the second axis and not driven by the second shaft flank the second pointer and have entrainment formations engageable therewith. Thus as the second pointer moves and engages either of the pointers it displaces same. A gear mechanism on the back face connects the second shaft to the first shaft for movement of the second pointer angularly codirectionally with the first pointer between adjacent symbols of the second display on rotation of the first pointer through 360°.

Description

Die Erfindung betrifft einen Motorantrieb zur Betätigung eines Stufenschalters, eines Umstellers oder einer Tauchkernspule, mit einer Stellungsanzeige.The invention relates to a motor drive for actuating a Step switch, a diverter or a plunger coil with a position indicator.

Ein solcher Motorantrieb gemäß dem Oberbegriff des Patentanspruches ist aus der Firmenschrift "Motorantrieb MA 7, Betriebsanweisung". Impressum BA 40/90 de - 0391/2000, der Anmelderin bereits bekannt.Such a motor drive according to the preamble of the claim is known from the Company name "Motor drive MA 7, operating instructions". Imprint BA 40/90 de - 0391/2000, already known to the applicant.

Dabei ist die Stellungsanzeige als direkter integraler Bestandteil des Steuergetriebes ausgebildet Es sind ein Schaltschrittanzeigerad und ein Stellungsanzeigerad vorhanden, die beide direkt innerhalb des Steuergetriebes betätigt werden. Die Anzeige selbst erfolgt jeweils durch auf der Stirn- d h. Umfangsseite des jeweiligen Rades angeordnete Markierungen, die sich mit dem entsprechenden Rad drehen. Die Stirnseiten sind in einem Bereich jeweils von außen sichtbar und die darauf angebrachten Markierungen ablesbar.The position indicator is designed as a direct integral part of the control gear There is a switching step indicator wheel and a position indicator wheel, both of which are direct be operated within the control gear. The display itself is shown on the Forehead Markings arranged on the circumferential side of the respective wheel, which correspond to the turn the corresponding wheel. The end faces are each visible from the outside in one area the markings on it can be read.

Das Schaltschrittanzeigerad dreht sich ebenso wie die Nockenscheibe des Steuergetriebes, die die einzelnen Kontakte bei jeder Umschaltung von einer Stufe des Stufenschalters oder dgl. auf eine benachbarte andere Stufe in einer vorbestimmten Schaltsequenz betätigt, jeweils um eine ganze Umdrehung.
Auf seiner Stirnseite ist es mit Markierungen versehen, die die einzelnen Schaltschritte, d h. die nacheinander bei einer Umschaltung ablaufende Schaltsequenz, darstellen bzw durch Zahlen oder andere Symbole abbilden.
Ein grunes Feld zeigt die Ruhestellung der Nockenschalter an.
Die Ausgangsstellung eines Schaltschrittes, d.h. der stationäre Zustand des Motorantriebes, ist durch eine rote Mittelmarke innerhalb des grünen Bereiches gekennzeichnet.The switching step indicator wheel rotates, as does the cam disk of the control gear, which actuates the individual contacts by a complete rotation in each case with a switchover from one stage of the step switch or the like to an adjacent other stage in a predetermined switching sequence.
On its front side, it is provided with markings that indicate the individual switching steps, i.e. represent the switching sequence that takes place successively during a switchover, or represent them by numbers or other symbols.
A green field shows the position of the cam switches.
The starting position of a switching step, ie the steady state of the motor drive, is identified by a red center mark within the green area.

Das Stellungsanzeigerad ist auf seiner Stirnseite mit Zahlen o.ä. versehen, die den möglichen Schaltstellungen des jeweiligen Stufenschalters o.ä. entsprechen.
Das Stellungsanzeigerad dreht sich bei jeder Umschaltung von einer Stufe des Stufenschalters auf eine benachbarte andere Stufe jeweils um einen Winkel, d.h. einen Schritt, der den Abstand zwischen zwei benachbarten Markierungen entspricht. The position indicator wheel has numbers or the like on its front. provided that the possible switching positions of the respective tap changer or the like. correspond.
The position indicator wheel rotates by an angle, ie a step that corresponds to the distance between two adjacent markings, each time a switch is made from one stage of the step switch to an adjacent other stage.

Die bekannte Stellungsanzeige zeigt also mittels des Schaltschrittanzeigerades jeweils an, in welchem Bereich der Schaltsequenz während einer Umschaltung sich der Motorantrieb gerade befindet.
Sie zeigt weiterhin mittels des Stellungsanzeigerades an, auf welcher Betriebsstellung (im stationären Zustand) sich der Motorantrieb befindet.
Nachteilig an dieser bekannten Stellungsanzeige ist die schlechte Visualisierung des Umschaltvorganges, d.h. der entsprechend zu durchlaufenden Schaltsequenz. Es ist nicht ohne weiteres erkennbar, ob sich ein eingeleiteter Umschaltvorgang noch am Anfang oder etwa bereits kurz vor seinem Abschluß befindet.
Ein weiterer Nachteil besteht darin, daß die Anzeigen, die sich, wie erläutert, jeweils an den Stirnseiten der beiden Räder befinden, aus größerer Entfernung nicht zu erkennen sind. Da die beiden Räder Bestandteil des Steuergetriebes sind und die Stirnseiten nicht beliebig dick gemacht werden können, ist eine Vergrößerung der Zahlen oder anderer Symbole konstruktionsbedingt nicht möglich.
Ein weiterer Nachteil der bekannten Stellungsanzeige besteht darin, daß nicht erkennbar bzw. nachvollziehbar ist, welche Betriebsstellungen bei vorangegangenen Betätigungen des Motorantriebes überhaupt bereits eingenommen wurden, d.h. welcher Regelbereich des Stufenschalters oder dgl. im praktischen Betrieb überhaupt bisher bereits genutzt wurde. Eine solche Information ist jedoch zunehmend bedeutsam für Service, Einstellungen und Monitoring-Funktionen. Es ist wichtig zu wissen, ob beispielsweise ein Stufenschalter über seinen gesamten Regelbereich beschaltet worden ist oder im wesentlichen immer nur in einem eng begrenzten Bereich betrieben wird und ob sich dieser eng begrenzte Bereich ggf. etwa nahe einer der beiden Endstellungen befindet. Alle diese Informationen sind bei der bekannten Stellungsanzeige nicht abrufbar.
Aufgabe der Erfindung ist es, einen gattungsgemäßen Motorantrieb mit Stellungsanzeige anzugeben, die eine gute Visualisierung der Informationen, leichte Ablesbarkeit aus großen Entfernungen und zusätzlich Informationen über die in der Vergangenheit beschalteten Regelbereiche bietet.The known position indicator thus shows in each case by means of the switching step indicating wheel in which area of the switching sequence the motor drive is currently during a changeover.
It also uses the position indicator wheel to indicate the operating position (in the stationary state) of the motor drive.
A disadvantage of this known position indicator is the poor visualization of the switching process, ie the switching sequence to be carried out accordingly. It is not immediately recognizable whether an initiated switchover process is still at the beginning or about to be completed.
Another disadvantage is that the displays, which, as explained, are located on the end faces of the two wheels, cannot be seen from a greater distance. Since the two wheels are part of the control gear and the end faces cannot be made as thick as required, the numbers or other symbols cannot be enlarged due to the design.
Another disadvantage of the known position indicator is that it is not recognizable or comprehensible which operating positions have already been assumed during previous actuations of the motor drive, ie which control range of the tap changer or the like has already been used in practical operation. Such information is, however, increasingly important for service, settings and monitoring functions. It is important to know whether, for example, a tap changer has been switched over its entire control range or is essentially only ever operated in a narrowly defined area and whether this narrowly limited area is possibly close to one of the two end positions. All of this information cannot be called up in the known position indicator.
The object of the invention is to provide a generic motor drive with position indicator that offers good visualization of the information, easy readability from long distances and additional information about the control ranges connected in the past.

Diese Aufgabe wird erfindungsgemäß durch einen Motorantrieb mit den Merkmalen des Patentanspruches gelöst.
Ein Vorteil des erfindungsgemäßen Motorantriebs besteht darin, daß die gesamte Anzeige vom Steuergetriebe entkoppelt ist; es sind separate Anzeigeskalen und diese überstreichende Zeiger zur Stellungsanzeige vorgesehen.
Ein weiterer Vorteil besteht darin, daß durch die gewählte Zeigeranordnung die Anzeige insgesamt einprägsamer, deutlicher und besser erkennbar wird. This object is achieved by a motor drive with the features of the claim.
An advantage of the motor drive according to the invention is that the entire display is decoupled from the control gear; there are separate display scales and these pointers for indicating the position.
Another advantage is that the selected pointer arrangement makes the display more memorable, clearer and easier to recognize.

Die verwendeten Zeiger zur Anzeige bieten einen besseren Überblick über das Verhältnis der gegenwärtigen Betriebsstellung innerhalb des gesamten möglichen Einstell- bzw. Regelbereiches. Sie bieten auf einen Blick eine Information darüber, ob sich der zugeordnete Stufenschalter o. ä. etwa in der Mitte oder am oberen oder unteren Ende seines Arbeitsbereiches befindet.
Die gewählte Zeigeranordnung bietet weiterhin eine bessere Übersicht über den Zeitablauf der jeweiligen Umschaltung, der entsprechende Zeiger gibt einen leicht erkennbaren Überblick, in welchem Stadium innerhalb der zu durchlaufenden Sequenz sich der Motorantrieb bei einer Umschaltung gerade befindet.The pointers used for the display offer a better overview of the ratio of the current operating position within the entire possible setting or control range. They provide information at a glance as to whether the assigned tap changer or similar is located approximately in the middle or at the top or bottom of its work area.
The selected pointer arrangement also offers a better overview of the timing of the respective switchover; the corresponding pointer gives an easily recognizable overview of the stage within the sequence to be run when the motor drive is currently at the switchover.

Die erfindungsgemäß vorgesehenen Schleppzeiger als Bestandteil der Stellungsanzeige geben auf einen Blick eine Information, in welchem Regelbereich, d.h. mit welchen Betriebsstellungen, der Stufenschalter o.ä. bisher betrieben worden ist.The drag pointers provided as part of the position indicator give up a glance an information in which control area, i.e. with which operating positions, the Step switch or similar has been operated so far.

Die Skalen und die Zeiger lassen sich hinsichtlich Größe, Form, Farbe und Schriftart der Symbole leicht an die jeweiligen Erfordernisse anpassen. Die Anzeige mittels kreisförmiger Skalen und Zeigern ist dem menschlichen Auge zudem vertrauter und birgt weniger Ablesefehler als die notwendigerweise nur kleinen Symbole auf den Stirnseiten der Räder nach dem Stand der Technik.The scales and the pointers can be adjusted in terms of size, shape, color and font of the symbols easily adapt to the respective requirements. The display by means of circular scales and Pointers are also more familiar to the human eye and contain fewer reading errors than that necessarily only small symbols on the end faces of the wheels according to the state of the Technology.

Die Erfindung soll nachfolgend anhand von Zeichnungen beispielhaft noch näher erläutert werden.

Fig. 1
zeigt eine Stellungsanzeige eines erfindungsgemäßen Motorantriebs von vorn
Fig. 2
zeigt einen Querschnitt durch diese Stellungsanzeige
The invention will be explained in more detail below by means of drawings.
Fig. 1
shows a position indicator of a motor drive according to the invention from the front
Fig. 2
shows a cross section through this position indicator

Auf einer Anzeigeplatine 1 ist eine erste kreisförmige Skala 2, die Schrittschaltskala, vorgesehen. Auf dieser Skala 2 sind im jeweils gleichen Abstand zueinander Symbole vorgesehen, die den einzelnen Schaltschritten, die nacheinander bei einer Umschaltung zu durchlaufen sind, d.h. den einzelnen Schritten der Schaltsequenz, entsprechen. Diese Symbole können einfache Striche, Zahlen oder andere graphische Zeichen sein.
Ein Skalenbereich 21 der ersten Skala 2, der dem Bereich entspricht, in dem die Nockenschalter des Steuergetriebes sich in Ruhestellung befinden, ist besonders - etwa farbig - markiert.
Zentrisch innerhalb dieser ersten Skala 2 ist auf einer durch die Anzeigeplatine 1 gefuhrten ersten Zeigerwelle 92 ein erster Zeiger 3, der Schrittschaltzeiger, drehbar angeordnet.
Durch ein noch zu beschreibendes Anzeigegetriebe 9 wird er bei jeder Umschaltung um 360 Grad gedreht, wobei er nacheinander alle Symbole der ersten Skala 2 durchläuft bzw. überstreicht und somit eine Anzeige über die momentane Stellung des Motorantriebes während einer Umschaltung gibt.
Die Drehrichtung des ersten Zeigers 3 ist abhängig von der Drehrichtung des Motorantriebes. Bei mehreren Schaltungen in der gleichen Richtung wird der erste Zeiger 3 die erste Skala 2 also mehrfach in gleicher Drehrichtung durchlaufen bzw. "umrunden"A first circular scale 2, the stepping scale, is provided on a display board 1. On this scale 2, symbols are provided at the same distance from one another, which correspond to the individual switching steps which have to be followed in succession during a switchover, ie the individual steps of the switching sequence. These symbols can be simple lines, numbers or other graphic characters.
A scale area 21 of the first scale 2, which corresponds to the area in which the cam switches of the control gear are in the rest position, is particularly marked, for example in color.
Centrally within this first scale 2, a first pointer 3, the step pointer, is rotatably arranged on a first pointer shaft 92 guided through the display board 1.
By means of a display gear 9 to be described, it is rotated by 360 degrees with each changeover, wherein it successively passes through or sweeps over all symbols of the first scale 2 and thus gives an indication of the current position of the motor drive during a changeover.
The direction of rotation of the first pointer 3 depends on the direction of rotation of the motor drive. If there are several circuits in the same direction, the first pointer 3 will pass through or "circle" the first scale 2 several times in the same direction of rotation.

Auf der Anzeigeplatine 1 ist weiterhin eine zweite Skala 4. die Stellungsanzeigeskala, vorgesehen. Auf dieser zweiten Skala 4 sind im jeweils gleichen Abstand zueinander weitere Symbole vorgesehen, die den einzelnen Betriebsstellungen des Stufenschalters o. dgl. entsprechen. Im Ausführungsbeispiel wurden dafür die einzelnen Ziffern 1 ... 33 gewählt, die 33 möglichen Betriebsstellungen des Motorantriebes und damit des zugeordneten Stufenschalters entsprechen. Es sind natürlich auch andere Symbole möglich; im gezeigten Beispiel mit 33 möglichen Betriebsstellungen könnten auch die Symbole -16, -15,..., -1, 0, + 1,..., +15, +16 verwendet werden.
Die einzelnen Symbole können entweder auf dem gesamten Skalenkreis oder, wie im Beispiel gezeigt, nur einem Teil davon angeordnet sein.
Zentrisch innerhalb dieser zweiten Skala 4 ist wiederum auf einer durch die Anzeigeplatine 1 geführten zweiten Zeigerwelle 97 ein zweiter Zeiger 5, der Stellungszeiger, drehbar angeordnet. Durch das noch zu beschreibende Anzeigegetriebe 9 wird er bei jeder Umschaltung um einen Winkel gedreht, der dem Abstand zwischen zwei benachbarten Symbolen der zweiten Skala 4 entspricht. Die Drehrichtung des zweiten Zeigers 5 ist abhangig von der Drehrichtung des Motorantriebes in Richtung "Höher" oder "Tiefer" Die in Fig. 1 gezeigten Endstellungen "1" und "33" können vom Motorantrieb nicht überfahren werden, daher ist ein Weiterdrehen des zweiten Zeigers 5 über diese Symbole hinaus nicht moglich. der zweite Zeiger 5 kann also, im Gegensatz zum weiter oben beschriebenen ersten Zeiger 3, die zugeordnete Skala 4 nicht mehrfach umrunden. Daher muß, wie bereits erläutert, die zweite Skala 4 auch nicht über den gesamten Kreis mit Symbolen versehen sein.
Auf der zweiten Zeigerwelle 97 sind weiterhin, also gleichachsig zum zweiten Zeiger 5, zwei Schleppzeiger 6, 7 gelagert, die zwar drehbar sind, jedoch von der Zeigerwelle 97 bei deren Drehung nicht mitgenommen werden.
Die beiden Schleppzeiger 6,7 sind beidseitig des zweiten Zeigers 5 angeordnet und weisen jeweils eine Mitnahmezunge 61, 71 auf, die beide in die Ebene des zweiten Zeigers 5 reichen.
Bei einer Bewegung des zweiten Zeigers 5 im Uhrzeigersinn wird der erste Schleppzeiger 6 mitgenommen, bei einer Bewegung des zweiten Zeigers 5 entgegen dem Uhrzeigersinn der zweite Schleppzeiger 7. Die beiden Schleppzeiger 6, 7 sind selbsthemmend gelagert, so daß sie in der Position, bis zu der sie jeweils mitgenommen wurden, verharren. A second scale 4, the position indicator scale, is also provided on the display board 1. On this second scale 4, further symbols are provided at the same distance from one another, which correspond to the individual operating positions of the tap changer or the like. In the exemplary embodiment, the individual digits 1 ... 33 were chosen for this, which correspond to 33 possible operating positions of the motor drive and thus of the assigned tap changer. Of course, other symbols are also possible; In the example shown with 33 possible operating positions, the symbols -16, -15, ..., -1, 0, + 1, ..., +15, +16 could also be used.
The individual symbols can either be arranged on the entire scale circle or, as shown in the example, only a part of it.
A second pointer 5, the position indicator, is rotatably arranged centrally on this second scale 4 on a second pointer shaft 97 guided through the display board 1. The display gear 9, which will be described later, rotates it at every switchover by an angle which corresponds to the distance between two adjacent symbols on the second scale 4. The direction of rotation of the second pointer 5 is dependent on the direction of rotation of the motor drive in the direction of "higher" or "lower". The end positions "1" and "33" shown in FIG. 1 cannot be overrun by the motor drive, so the second pointer must be turned further 5 not possible beyond these symbols. In contrast to the first pointer 3 described above, the second pointer 5 cannot circle the assigned scale 4 several times. Therefore, as already explained, the second scale 4 does not have to be provided with symbols over the entire circle.
On the second pointer shaft 97 two trailing pointers 6, 7 are also mounted, ie coaxially with the second pointer 5, which are rotatable, but are not carried along by the pointer shaft 97 when it rotates.
The two drag pointers 6, 7 are arranged on both sides of the second pointer 5 and each have a driving tongue 61, 71, both of which extend into the plane of the second pointer 5.
When the second pointer 5 moves clockwise, the first drag pointer 6 is carried along, when the second pointer 5 moves counterclockwise, the second drag pointer 7. The two drag pointers 6, 7 are self-locking so that they are in the position up to of which they were taken away.

Der erste Schleppzeiger 6 markiert damit die höchste jemals erreichte Betriebsstellung, der zweite Schleppzeiger 7 markiert die niedrigste jemals erreichte Betriebsstellung.
Die beiden Schleppzeiger 6, 7 umschließen also den bisher genutzten, d.h. beschalteten Regelbereich und ermöglichen auf einfache Weise eine gut visualisierte Aussage über die Bandbreite des genutzten Regelbereiches einerseits und seine relative Lage innerhalb des zur Verfügung stehenden Gesamtbereiches andererseits.
Beide Schleppzeiger 6, 7 sind manuell rückstellbar, so daß beispielsweise nach einem Probelauf durch alle Schaltstellungen oder nach einer Revision ein Ausgangszustand wiederhergestellt werden kann.The first drag pointer 6 thus marks the highest operating position ever reached, the second drag pointer 7 marks the lowest operating position ever reached.
The two drag pointers 6, 7 thus enclose the previously used, ie connected, control range and in a simple manner enable a well-visualized statement about the bandwidth of the control range used on the one hand and its relative position within the available overall range on the other hand.
Both trailing pointers 6, 7 can be reset manually, so that an initial state can be restored, for example, after a test run through all switch positions or after a revision.

Zusätzlich ist auf der Anzeigeplatine 1 noch die Anordnung eines bekannten Zählwerkes 8 zur Anzeige der Gesamtschaltzahl möglich.In addition, the arrangement of a known counter 8 is on the display board 1 Total switching number can be displayed.

Auf der Unterseite der Anzeigeplatine 1 ist das Anzeigegetriebe 9 angeordnet, das vom Steuergetriebe räumlich getrennt ist.
Vom Steuergetriebe führt eine Antriebswelle 91 in das Anzeigegetriebe 9, die bei jeder Umschaltung des Motorantriebes eine Drehung von 360 Grad vollführt.
Die Anzeigewelle 91 ist direkt mit der ersten Zeigerwelle 92 verbunden, die den ersten Zeiger 3 trägt.
Über hier vier Zahnräder 93, 94, 95, 96 ist die Anzeigewelle 91 mit der zweiten Zeigerwelle 97 verbunden, die den zweiten Zeiger 5 trägt. Die Zahnräder 93 ...96 sind dabei derart dimensioniert, daß die zweite Zeigerwelle 97 und damit der zweite Zeiger 5 bei jeder vollen Umdrehung der Antriebswelle 91. die einer vollständigen Umschaltung des Motorantriebes entspricht, um einen Drehwinkel gedreht wird, der dem Abstand zwischen zwei benachbarten Symbolen auf der zweiten Skala 4 entspricht.
Durch eine entsprechende Auslegung des Anzeigegetriebes 9 ist es möglich, die Schaltrichtungen "Höher" bzw. "Tiefer" des Motorantriebes den Drehrichtungen der Zeiger 3. 5 zuzuordnen.The display gear 9 is arranged on the underside of the display board 1 and is spatially separated from the control gear.
A drive shaft 91 leads from the control gear into the display gear 9, which performs a rotation of 360 degrees each time the motor drive is switched over.
The indicator shaft 91 is directly connected to the first pointer shaft 92, which carries the first pointer 3.
The indicator shaft 91 is connected to the second pointer shaft 97, which carries the second pointer 5, via four gear wheels 93, 94, 95, 96 here. The gear wheels 93 ... 96 are dimensioned in such a way that the second pointer shaft 97 and thus the second pointer 5 are rotated by an angle of rotation which corresponds to the distance between two with each complete revolution of the drive shaft 91 adjacent symbols on the second scale 4 corresponds.
By appropriate design of the display gear 9, it is possible to assign the switching directions "higher" or "lower" of the motor drive to the directions of rotation of the pointer 3. 5.

Claims (2)

  1. Motor drive for the actuation of a tap selector switch, a reversing device or a solenoid coil, with a position display with the following features:
    a first circular scale (2), on which symbols are arranged, which are associated with the individual switching steps which are run through one after the other in the case of the switching over of the motor drive from one operational position into a neighbouring other operational position, is provided on a display mounting plate (1);
    a first pointer (3) on a pointer shaft (92) guided through the display mounting plate (1) is arranged to be rotatable centrally within the first scale (2);
    a second circular scale (4), on which further symbols are arranged at always the same spacing on from the other, which symbols are associated with the individual possible stationary operational positions of the tap selector switch, the reversing device or the solenoid coil, is furthermore provided on the display mounting plate (1);
    a second pointer (5) on a second pointer shaft (97) guided through the display mounting plate (1) is arranged to be rotatable centrally within the second scale (4);
    drag pointers (6, 7) are borne to be self-lockingly rotatable on the second pointer shaft (97) at both sides of the second pointer (5), but not driven by the second pointer shaft (97), in such a manner that one of the two drag pointers (6, 7) is in dependence on the direction of rotation entrained by the second pointer (5) on a rotational movement thereof and remains in the position reached;
    a display gear (9) is provided at the underside of the display mounting plate (1), through which gear the first and the second pointer (3, 5) stand in connection with the motor drive in such a manner that, in the case of the switching over of the motor drive from one operational position into a neighbouring other operational position, the first pointer (3) is in dependence on the direction of rotation rotatable through 360 degrees and the second pointer (5) is in dependence on the direction of rotation rotatable through an angle which corresponds with the spacing between two neighbouring symbols on the second scale (4).
  2. Motor drive according to claim 1, wherein the display gear (9) is arranged to be spatially separate from the control gear of the motor drive.
EP98901952A 1997-02-25 1998-01-09 Motor drive Expired - Lifetime EP0963592B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19707528 1997-02-25
DE19707528A DE19707528C1 (en) 1997-02-25 1997-02-25 Position indicator
PCT/EP1998/000092 WO1998038662A1 (en) 1997-02-25 1998-01-09 Position indicator

Publications (2)

Publication Number Publication Date
EP0963592A1 EP0963592A1 (en) 1999-12-15
EP0963592B1 true EP0963592B1 (en) 2001-12-12

Family

ID=7821430

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EP98901952A Expired - Lifetime EP0963592B1 (en) 1997-02-25 1998-01-09 Motor drive

Country Status (19)

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US (1) US6234106B1 (en)
EP (1) EP0963592B1 (en)
JP (1) JP3819442B2 (en)
KR (1) KR100457039B1 (en)
CN (1) CN1065066C (en)
AT (1) ATE210885T1 (en)
AU (1) AU5862598A (en)
BG (1) BG63790B1 (en)
BR (1) BR9807608B1 (en)
CA (1) CA2282420C (en)
CZ (1) CZ297425B6 (en)
DE (2) DE19707528C1 (en)
ES (1) ES2165145T3 (en)
HU (1) HUP0000971A3 (en)
PL (1) PL192863B1 (en)
RO (1) RO120104B1 (en)
RU (1) RU2199787C2 (en)
UA (1) UA42114C2 (en)
WO (1) WO1998038662A1 (en)

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Also Published As

Publication number Publication date
CA2282420C (en) 2006-04-18
PL335303A1 (en) 2000-04-10
KR100457039B1 (en) 2004-11-10
DE59802438D1 (en) 2002-01-24
JP2001513252A (en) 2001-08-28
CN1065066C (en) 2001-04-25
DE19707528C1 (en) 1998-08-13
HUP0000971A3 (en) 2002-03-28
RU2199787C2 (en) 2003-02-27
CN1239582A (en) 1999-12-22
RO120104B1 (en) 2005-08-30
HUP0000971A2 (en) 2000-08-28
US6234106B1 (en) 2001-05-22
KR20000075592A (en) 2000-12-26
UA42114C2 (en) 2001-10-15
CZ297425B6 (en) 2006-12-13
CZ300199A3 (en) 1999-12-15
JP3819442B2 (en) 2006-09-06
CA2282420A1 (en) 1998-09-03
WO1998038662A1 (en) 1998-09-03
AU5862598A (en) 1998-09-18
ATE210885T1 (en) 2001-12-15
BR9807608B1 (en) 2010-09-21
ES2165145T3 (en) 2002-03-01
BG103579A (en) 2000-02-29
BG63790B1 (en) 2002-12-29
EP0963592A1 (en) 1999-12-15
BR9807608A (en) 2000-02-22
PL192863B1 (en) 2006-12-29

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