EP0255855B1 - Entraînement à ressort accumulé pour appareils de commutation électrique - Google Patents

Entraînement à ressort accumulé pour appareils de commutation électrique Download PDF

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Publication number
EP0255855B1
EP0255855B1 EP87106723A EP87106723A EP0255855B1 EP 0255855 B1 EP0255855 B1 EP 0255855B1 EP 87106723 A EP87106723 A EP 87106723A EP 87106723 A EP87106723 A EP 87106723A EP 0255855 B1 EP0255855 B1 EP 0255855B1
Authority
EP
European Patent Office
Prior art keywords
spring
pawl
disc
blocking
switch
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 - Lifetime
Application number
EP87106723A
Other languages
German (de)
English (en)
Other versions
EP0255855A2 (fr
EP0255855A3 (en
Inventor
Thomas Dipl.-Ing. Linke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CONCORDIA SPRECHER ENERGIE GMBH
Original Assignee
CONCORDIA SPRECHER ENERGIE GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CONCORDIA SPRECHER ENERGIE GmbH filed Critical CONCORDIA SPRECHER ENERGIE GmbH
Priority to AT87106723T priority Critical patent/ATE73574T1/de
Publication of EP0255855A2 publication Critical patent/EP0255855A2/fr
Publication of EP0255855A3 publication Critical patent/EP0255855A3/de
Application granted granted Critical
Publication of EP0255855B1 publication Critical patent/EP0255855B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3047—Power arrangements internal to the switch for operating the driving mechanism using spring motor adapted for operation of a three-position switch, e.g. on-off-earth
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3042—Power arrangements internal to the switch for operating the driving mechanism using spring motor using a torsion spring

Definitions

  • the invention relates to a spring-loaded drive according to the preamble of claim 1.
  • the object of the present invention is to provide a spring-loaded drive of the type specified at the outset in such a way that it can be manufactured inexpensively, is easy to install and has at least three switch positions, so that switch disconnectors of the type described in DE-A-35 15 203 described type can be operated.
  • the spring-loaded drive according to the invention should be able to be equipped, in particular retrofitted, with a controllable blocking device, which enables the switch to be pretensioned in the off position, so that the drive can be used as a transformer switch drive.
  • the spring-loaded actuator according to the invention is particularly suitable for the SF6 switch-disconnector with three switching positions described in DE-A-35 15 203, the respective switching angle being 72 °. However, it is also possible to implement three further switching positions by attaching a third latch set.
  • a disc serving to indicate the switch position is fixedly connected to the carrier shaft via a rigid intermediate carrier, as a result of which a direct transmission of the switch position to the position indicator, i.e. in avoiding any redirection.
  • An embodiment variant of the invention which is suitable as a transformer switch with an extended operating state "cocked for off” compared to a cable switch, is characterized in that a detachable locking member is assigned to the pawl blocking the locking disk during the transition from the on position to the off position is that allows only a partial lifting of the pawl into a release position blocked only by the locking member, and that the control disk has a locking support surface which, together with a locking lever biased in the switched-on position against the control disk, the control disk and thus the support bracket which tensions the torsion spring Condition holds.
  • the conversion or retrofitting to the transformer switch drive in accordance with these additional features is carried out by attaching additional components which are merely screwed on, all the fastening points and functional surfaces already being present in the basic drive corresponding to the cable switch drive.
  • FIG. 1 The schematic front view of a spring-loaded actuator in its basic configuration according to FIG. 1 shows a base plate 1 which can be connected directly to the respective switch frame or via damping elements, on which two axially opposite two pawls 2a, 2b; 2c, 2d are stored.
  • compression springs 4 supported on pawls the pairs of pawls biased towards a decrease in the angle they enclose.
  • the drive shaft of the associated switch extends through an opening in the base plate and is rotatably connected to a carrier shaft 6 of the spring-loaded drive.
  • This carrier shaft 6 is designed as a pot shaft and is preferably connected to the switch shaft by means of a screw and possibly wedge connection.
  • a torsion spring 8 is arranged on the carrier shaft 6 with the interposition of a bearing sleeve 7, in particular made of plastic.
  • Support bracket 12 and thus control disk 11 can be pivoted clockwise and counterclockwise to perform switching movements by means of various plug levers 15.
  • the locking disk 9, which is firmly connected to the carrier shaft 6, has locking surfaces 14, 15 which are connected to the pair of double pawls 2a, 2b; 2c, 2d interact in the different switching positions.
  • the control disc 11 is provided with inclined surfaces x which, depending on the respective pivoting angle of the control disc 11, cause the pawls to be lifted out of the locking surfaces.
  • the drive is actuated by means of a suitable plug lever via the support bracket 12 and the support plate 13 onto the control disk 11, which is turned clockwise with respect to the locking disk 9 in the switch-on direction, namely against the force of the torsion spring 8 caused by the arrangement of the drive plate 10 and support bracket 12 always claimed in the winding direction, ie is drawn.
  • FIG. 2 shows the state of the spring-loaded drive according to FIG. 1 shortly before the switching on process.
  • the spring 8 is already strongly tensioned by the rotation of the support bracket 12 and support plate 13, but it is still held by the locking disk 9 and the driving plate 10 connected to it. Only a further rotation of the support bracket 12 and the support plate 13 causes the inclined surface x of the control disk 11 firmly connected to the support bracket 12 to engage the pawl 2b and cause this pawl 2b to be lifted, whereupon the locking disk 9 becomes free and thus due to the now released spring abruptly lags the locking disk 9 and thus the carrier shaft 6 until the rotational movement is stopped by the pawl 2c and the locking disk 9 is also locked in the opposite direction by the engagement of the spring-loaded pawl 2d.
  • Fig. 5 shows an axial section of the basic structure of the spring-loaded actuator according to the invention, in connection with additional elements that allow the use of this drive as a transformer switch, an additional switch position "biased towards the off” is possible.
  • FIG. 5 shows the switch shaft 20 which extends through the base plate 1 and which is connected in a rotationally fixed manner to the carrier shaft 6 designed as a cup shaft.
  • the carrier shaft 6 designed as a cup shaft.
  • a central plug-in receptacle part 18 is inserted and fixed. This part is used to hold one of the two plug pins of the indicated plug lever 5 for switch actuation.
  • the second plug pin of the plug lever 5 engages in an eccentrically arranged plug pin receptacle 19 which is designed as an elongated hole receptacle in order to ensure the use of different levers for the switching-on process and the grounding process in connection with corresponding guide slots in a front plate.
  • a major advantage of the drive according to the invention is that a disk 16 providing the switch position indicator can be connected directly to the carrier shaft 6, which is connected in a rotationally fixed manner to the switch shaft, via a simple intermediate carrier member 17 without deflections. This always ensures that the position indicator matches the actual switch position and that incorrect positions due to interference in transmission elements are excluded.
  • Fig. 6 shows a sectional view along the line A-A in Fig. 5 and shows in particular the intended type of blocking the spring-loaded drive in the operating state "cocked for off".
  • a locking arrangement is provided for the control disk 11 and thus for the support bracket which tensions the torsion spring 8, and on the other hand a device for preventing the pawl holding the locking disk 9 from being lifted is required.
  • the device for blocking the control disk 11 consists of a locking support surface 21 attached in this control disk 11, which interacts with a locking lever 22.
  • This locking lever 22 is pivotable about an axis 26 provided on the base plate 1 and can be pretensioned in the direction of the locking disk 11 by means of a tensioning lever 23 and a tensioning spring 24.
  • the tension spring 24 is attached at one end to the lever 23 and at its other end to a bolt 25 which is firmly connected to the pawl 2b and can slide in an elongated hole 25 'of the tensioning lever 23. Contrary to the direction of attack of the force of the spring 24, the tensioning lever 23 is also loaded by a further spring fastened to the base plate 1.
  • the locking lever 22 assumes its inactive position, i.e. it lies outside the movement path of the blocking support surface 21.
  • the spring 24 is stretched over the bolt 25 and the locking lever 22 is biased radially inward so that it can possibly engage with the locking support surface 21 .
  • a blocking device which consists of a pivotably mounted half-shaft 27, which is biased into the blocking position by means of a spring 30.
  • Fig. 7 shows this half-wave arrangement 27, which interacts with the pawl 2d.
  • the inclined surface x of the control disk 11 can only raise the pawl 2d to such an extent that it is transferred from its deep detent position into a self-releasing position, "but does not release the locking disk 9.
  • the locking lever 22 is already pivoted inwards and can - when the tensioning movement is ended and the locking lever is returned somewhat clockwise again - come to rest on the locking support surface 21, as a result of which the torsion spring 8 remains tensioned.
  • the spring-loaded drive according to the invention can largely be produced from stamped and bent parts and thus particularly inexpensively, without this having any loss in terms of functional reliability and service life.

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Electrostatic Separation (AREA)
  • Transmission Devices (AREA)

Claims (8)

1. Entraînement à ressort à accumulation pour appareils de commutation électriques, en particulier pour commutateurs de coupure en charge présentant une position fermée et une position ouverte, comprenant une plaque de base (1) destinée à la fixation sur un bâti de commutation, un axe de support (6) propre à être reliée à l'axe de commutateur associé, un ressort rotatif (8) disposé entre l'axe de support et un organe d'appui (12) pivotable au moyen d'un levier emboîtable, et une unité de verrouillage pour l'arbre de support (6), laquelle coopère avec des leviers à lame (2a, 2b, 2c, 2d) libérables, dans lequel le ressort rotatif (8) est agencé coaxialement à l'axe de support (6), l'organe d'appui (12) qui coopère avec une extrémité du ressort est formé par une partie en forme de douille (12, 13) montée tournante sur l'axe de support (6), un disque de commande (11) est rigidement relié à la partie en forme de douille (12, 13), l'autre extrémité du ressort s'appuie sur un doigt d'entraînement (10) relié à l'axe de support (6), le doigt d'entraînement (10) est relié rigidement à l'unité de verrouillage réalisée sous la forme d'un disque (9), ce disque de verrouillage (9) présente à sa périphérie une paire de surfaces de verrouillage (14, 15) qui coopèrent avec les leviers à lame (2a, 2b, 2c, 2d) dans les différentes positions de commutation, et les leviers à lame (2a, 2b, 2c, 2d) peuvent être libérés en fonction de la rotation du disque de commande (11), caractérisé en ce qu'il est prévu au moins deux paires de leviers à lame (2a, 2b; 2c, 2d) et en ce que les paires de leviers à lame (2a, 2b; 2c, 2d) sont disposées et agencées de telle manière que dans les différentes positions de commutation les deux lames d'une paire de leviers à lame (2a, 2b; 2c, 2d) ou une lame d'une paire de leviers à lame (2a, 2b; 2c, 2d) et simultanément une autre lame d'une paire voisine de leviers à lame (2a, 2b; 2c, 2d) tombent respectivement dans la paire de surfaces de verrouillage (14, 15).
2. Entraînement à ressort à accumulation selon la revendication 1, caractérisé en ce que la partie en forme de douille (12, 13) qui sert au tensionnement du ressort rotatif (8) est montée sur l'axe de support (6) des deux côtés du ressort rotatif (8) au moyen d'éléments en forme de disque, l'élément en forme de disque situé du côté du commutateur est réalisé, en particulier sur environ 180°, sous la forme d'un disque de commande (11) ayant des surfaces inclinées (x) pour la levée des lames, et l'extrémité associée du ressort rotatif (8) du disque de commande (11) s'appuyant du côté opposé sur une languette d'appui (12) qui fait partie de la partie en forme de douille.
3. Entraînement à ressort à accumulation selon la revendication 1, caractérisé en ce que les deux lames de chaque paire de leviers à lame (2a, 2b; 2c, 2d) sont montées sur un axe commun (3) et sollicitées au moyen d'un ressort (4) contre le disque de verrouillage (9).
4. Entraînement à ressort à accumulation selon l'une des revendications précédentes, caractérisé en ce qu'un disque (16) de grande surface, qui sert à indiquer les positions de commutation, est rigidement relié à l'axe de support (6) au moyen d'un support intermédiaire (17) rigide.
5. Entraînement à ressort à accumulation selon l'une des revendications précédentes, caractérisé en ce qu'un organe de verrouillage libérable (27) est associé à la lame (2d) qui bloque le disque de verrouillage (9) lors du passage de la position de fermeture à la position d'ouverture, cet organe ne permettant qu'une levée partielle de la lame (2d) dans une position de libération bloquée uniquement par l'organe de verrouillage, et en ce que le disque de commande (11) présente une surface d'appui de verrouillage (21) qui maintient à l'état tendu, conjointement avec un levier de blocage (22) sollicité contre le disque de commande (11) dans la position de fermeture, le disque de commande (11) et par conséquent la languette d'appui (12) qui sollicite le ressort rotatif (8).
6. Entraînement à ressort à accumulation selon la revendication 5, caractérisé en ce que l'organe de verrouillage (27) comprend un demi-axe (27) qui est sollicité dans la position de verrouillage et qui peut être tourné au moyen d'un levier de libération ou d'actionnement (29), ledit demi-axe étant disposé dans le trajet de pivotement de la lame (2d).
7. Entraînement à ressort à accumulation selon l'une des revendications précédentes, caractérisé en ce que la plaque de base (1) est fixée par rapport au bâti de commutation considéré au moyen d'éléments amortisseurs élastiques.
8. Entraînement à ressort à accumulation selon l'une des revendications 1 à 8, caractérisé en ce que le disque de verrouillage (9) est monté tournant sur un faible angle de rotation par rapport à l'axe de support (6), avec interposition d'éléments amortisseurs, en particulier avec interposition d'un amortisseur en caoutchouc.
EP87106723A 1986-08-05 1987-05-08 Entraînement à ressort accumulé pour appareils de commutation électrique Expired - Lifetime EP0255855B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87106723T ATE73574T1 (de) 1986-08-05 1987-05-08 Federspeicher-antrieb fuer elektrische schaltgeraete.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863626526 DE3626526A1 (de) 1986-08-05 1986-08-05 Federspeicher-antrieb fuer elektrische schaltgeraete
DE3626526 1986-08-05

Publications (3)

Publication Number Publication Date
EP0255855A2 EP0255855A2 (fr) 1988-02-17
EP0255855A3 EP0255855A3 (en) 1989-04-26
EP0255855B1 true EP0255855B1 (fr) 1992-03-11

Family

ID=6306750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106723A Expired - Lifetime EP0255855B1 (fr) 1986-08-05 1987-05-08 Entraînement à ressort accumulé pour appareils de commutation électrique

Country Status (4)

Country Link
EP (1) EP0255855B1 (fr)
AT (1) ATE73574T1 (fr)
DE (2) DE3626526A1 (fr)
ES (1) ES2029808T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3802207A1 (de) * 1988-01-26 1989-07-27 Concordia Sprecher Schalt Vorrichtung zur anzeige der schaltstellung von mehrstellungs-lasttrennschaltern
DE3802371A1 (de) * 1988-01-27 1989-08-10 Concordia Sprecher Schalt Vorrichtung zur betaetigung von lasttrennschaltern
DE3918102A1 (de) * 1989-06-02 1990-12-13 Concordia Sprecher Energie Federspeicher-drehantrieb
DE4034126C1 (fr) * 1990-10-26 1992-03-05 Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De
DE4210851A1 (de) * 1992-04-01 1993-10-07 Concordia Sprecher Energie Federspeicher-Drehantrieb
DE202006012002U1 (de) * 2006-08-03 2007-12-20 Walter Kraus Gmbh Antrieb für einen Schalter in Elektroanlagen
FR2941558A1 (fr) * 2009-06-19 2010-07-30 Areva T & D Sa Dispositif de commande d'appareillage electrique moyenne ou haute tension, notamment de sectionneur de terre
CN102360969B (zh) * 2011-11-05 2013-09-25 永济新时速电机电器有限责任公司 带有锁定装置的动车牵引辅助变流器用接地开关
AT512813B1 (de) 2012-04-16 2023-01-15 Alexander Benedict Vorrichtung für einen Trennschalter
DE102012107900A1 (de) * 2012-08-28 2014-03-06 Maschinenfabrik Reinhausen Gmbh Kraftspeicher für einen Laststufenschalter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL120266C (fr) * 1960-11-04
DE1887788U (fr) * 1963-12-06 1964-02-20
DE3239839C1 (de) * 1982-10-27 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Antrieb fuer einen elektrischen Dreistellungsschalter

Also Published As

Publication number Publication date
ES2029808T3 (es) 1992-10-01
ATE73574T1 (de) 1992-03-15
EP0255855A2 (fr) 1988-02-17
DE3777278D1 (de) 1992-04-16
EP0255855A3 (en) 1989-04-26
DE3626526A1 (de) 1988-02-11

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