EP0847065B1 - Système d'entraínement pour un interrupteur - Google Patents
Système d'entraínement pour un interrupteur Download PDFInfo
- Publication number
- EP0847065B1 EP0847065B1 EP97116527A EP97116527A EP0847065B1 EP 0847065 B1 EP0847065 B1 EP 0847065B1 EP 97116527 A EP97116527 A EP 97116527A EP 97116527 A EP97116527 A EP 97116527A EP 0847065 B1 EP0847065 B1 EP 0847065B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch
- locking
- shaft
- drive
- stressing
- 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
Links
Images
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
Definitions
- the invention relates to a drive according to the preamble of the first claim.
- a known drive of this type (DE 36 23 247 A1) for a medium voltage switch has a tension shaft, which on the one hand has an eccentric with an exciting one Tension spring as a closing spring and on the other hand via a Direction dependent, two acting in the same direction Freewheel with one-way Actuating shaft in drive connection.
- Actuator which is an actuator motor and has attachable hand crank.
- One of the freewheels prevents a while turning the actuating shaft Turn back the tension shaft while the other one Cam track is periodically advanced, which is a stepwise further rotation of the tensioning shaft.
- the cam track is driven either by the electric gear motor or via the pluggable Hand crank.
- this tensioned position is the tension shaft by means of a Clamping shaft interacting lockout releasable locked and unlocked when the Switch should be turned on.
- This turns Relaxing closing spring at least up to the tension shaft continue to reach the second dead center position, whereby not only via the coupling device of the switches switched on, but also one assigned to the switch Opening spring tensioned and in tensioned condition is locked.
- the switch can be made from this Switch on position at any time in the Switch off position are transferred.
- the switch-on process is in any case by means of the motor, Hand crank, actuation shaft with cam track and freewheels formed actuator the tension shaft again twisted until the closing spring and the Switch-on lock prevents the tension shaft from turning further, the closing spring is therefore tensioned in the dead center position.
- the disadvantage of this structure is that elements of Actuator and in particular the lockout as well as the switch-on trigger directly with the forces be loaded, which the closing spring on the Exerts tension shaft.
- the invention has for its object in a drive measures according to the preamble of the first claim meet through which a reduction in the torques occurs the actuator and the lockout and on Switch-on triggers can be reached.
- a drive according to the invention is by the between actuator and Tension shaft inserted additional gear stage at operationally rigid slewing ring between the tension shaft and the additional gear stage corresponding to the A reduction ratio accordingly lower Torque achieved on the additional gear stage.
- the switch-on lock coupled to this gear stage, the prevents further rotation and the switch-on trigger to release the locked rotation are therefore in Operation significantly less stressed than at direct coupling with the tensioning shaft.
- the same stands for the spooling movement, for engaging the lockout and for disengaging the pawls by a factor the gear ratio (in the present example 5 times) larger path available, so that the Precision and adjustability requirements can be significantly reduced.
- the Directional locking mechanism geared between the actuating shaft to be moved manually or by motor and the tension shaft is placed.
- the tension shaft carries a tensioning wheel and the drive shaft in contrast in Diameter smaller drive wheel, e.g. over a chain gear rigidly with each other and with the associated Waves are connected.
- the gear ratio is included integer to lock the switch on without any special effort only to take effect after the drive wheel before the dead center of the eccentric at which the Closing spring is maximally tensioned, the last full Revolution has started.
- the switch-on lock can be on the drive shaft provided locking roller, a transverse to the direction of movement Locking roller adjustable locking member and one the control shaft provided control pin. Of the Control pin is so opposite the locking member arranged that he only during the last rotation of the Drive wheel that it before reaching the maximum Clamping stroke of the eccentric executes in the adjustment path of the Lock roller is placed. In this situation occurs Power-on trigger engages with the locking member, the one Resetting the locking member prevented until the Activation trigger is actuated and the blocking element releases.
- the locking member is in particular with a Barrier edge equipped, which is inclined so that a Force component through the contact force of the locking roller arises, which the locking member from the locked position press searches.
- the locking role is particularly on Drive wheel and the control pin arranged on the tensioning wheel, so that additional carriers are not required.
- the locking link the switch-on lock can be used as a flat sheet metal cutout be formed in the form of a lever arm, the one in leading edge protruding the adjustment path of the control pin and on the opposite side in the adjustment path the locking roller protruding locking edge.
- the lever arm is particularly distant from the drive and Tension shaft receiving plane around a parallel to Drive shaft extending pivot and protrudes from there through a drive or tension shaft common receiving level through.
- While the Rising edge and the blocking edge in the middle section can be arranged is at the free end of the lever arm a trigger edge is provided, which in the locked position of the lever arm in engagement with a parallel to the plane of the Trigger flank adjustable trigger of the Switch-on trigger is.
- the Actuator are made ineffective. That can happen that on the tension shaft or the tension wheel a control cam is provided, the one Control switch arrangement immediately after exceeding the maximum clamping stroke of the eccentric an electrical Drive motor switches off and one with the drive wheel in Engaged pawl assembly disengaged puts.
- the primary task is to pick up the Butt-engaging.
- the invention is based on the schematic diagrams of an embodiment explained in more detail.
- a drive device for an electrical switch 1, especially for medium or high voltage purposes is determined, is via a coupling rod 2 with a Lever arm 3a of a shift lever 3 connected to one Switch shaft 4 is pivotally mounted and the second Lever arm 3b after pivoting out of the open in the closed position of the switch 1 with a Locking flank 5 into a locking lug 6 of a release lock 7 engages and also with one end of an opening spring 8 is connected, the other end of which is stationary in one Drive housing 9 is hooked.
- the opening spring 8 is in the off state of switch 1 in operationally relaxed. i.e. in the partially prestressed and with switch 1 switched on in full operation tense condition.
- the shift lever 3 gropes by means of a on the lever arm 3a seated roller 10 a switching cam 11 from which is fixed on a tension shaft 12 and first over a rotation angle of 180 degrees Path section 11a with a constant radius has, which then continuously over a Curve edge 11b rises to a value that at Turn the switching cam 11, the shift lever 3rd pivots so far that the switch 1 in its Closed position and the locking edge 5 in engagement with the Latch 6 arrives. Switch 1 remains in this position locked until the shutdown lock 7 by a Switch-off auxiliary trigger 13 or a manually operated Tripping device is moved away from the locking edge 5.
- An eccentric 14 sits on the tensioning shaft 12 in a rotationally fixed manner whose eccentric pin 15 is one end of a closing spring 16 is attached, the other end of which is stationary with the Drive housing 9 is connected. Additionally sits on the Tension shaft 12 rotatably a tension wheel 17, which as a sprocket is formed and via a chain 18 in non-slip, torsionally rigid drive connection with one on one Drive shaft 19 stuck drive wheel 20 is. There are also two rotationally fixed with the drive shaft 19 Pawl wheels 21 connected to the pawls 22 in Are engaged, which are offset by an angle of rotation Eccentric drives in a reciprocating motion be displaced when an associated actuating shaft 24 is rotated. This can be done manually using a Hand crank 25 or by means of an electric Gear motor 26 take place. The pawls 22 is there each have a return spring 22a assigned to it Ensure engagement with the pawl springs 21.
- a switch-on lock 27 is provided, which only then Further rotation of the drive shaft 19 prevented when the Eccentric pin 15 is just behind top dead center.
- the Switch-on lock 27 is therefore dependent on the rotational position the tension shaft 12 controlled accordingly, so the switch-on lock only during the last rotation of the Drive shaft before exceeding top dead center with the drive shaft 19 cooperates.
- the drive device according to FIGS. 2 to 6 is functionally identical to the drive device according to FIG. 1, the same functional elements with the same reference numbers are provided and only the local assignment of the Functional elements is changed.
- the lockout 27 points accordingly one connected to the drive shaft 19 Locking stop 27a, a transverse to the direction of movement Locking roller 27a adjustable locking member 27b and a control pin 27c provided on the tension shaft 12 on.
- the locking member 27b is about a fixed axis 28 pivoted in the gear housing 9 and as a lever arm trained in a swivel position with a Starting edge 27d in the adjustment path of the control pin 27c and in its other swivel position with a locking edge 27e protrudes into the adjustment path of the locking roller 27a.
- the axis the lever arm 27b is located away from one of the Drive and tension shaft 19, 12 receiving plane, wherein its axis 28 runs parallel to these waves.
- Lever arm 27b is designed as a flat sheet cutout and engages between the shafts 19, 12 through the same receiving plane through.
- the free end of the lever arm a switch-on trigger 29 is assigned to the Interact with one at the free end of the lever arm trained switch-on trigger edge 30 is determined.
- the closing spring 16 generates a further rotating torque caused by the application of force the locking roller 27a on the locking flank 27e the locking member 27b pushes back into the release position.
- the control pin 27c is then no longer within the sphere of influence of Starting edge 27d.
- the closing spring 16 can thereby Tensioning wheel 17 without brakes from the position shown in FIG. 4 in the Turn position according to Fig. 5.
- Shift cam 11 With its rising flank 11b in operative connection with the roller 10 on the shift lever 3 (Fig. 4), which is pivoted so far that the Switch 1 closed and the opening spring 8 tensioned becomes.
- the switching cam 11 immediately closes switch 1 again, which then but when the opening spring 8 is tensioned again immediately via the Switch-off lock 7 can be controlled in the open position, if the fault in the supply network does not reappear has subsided. It is then switched on again however, only possible again when the closing spring 16 is brought into the tensioned position according to FIG. 4 or 6.
- Control spool 38 come to use, with the provided with an elongated hole 28a and opposite the axis 28 against the force of a spring 35a diagonally so far can be moved that the pawls 22 are lifted and / or the control switch arrangement 36 is switched over.
- the control slide 38 is with a Attachment flank 39 provided in the direction of rotation Lock roller 27a is in front of the control edge 27e and that of the locking roller 27a then against the force of the spring 35a Barrier edge 27e is pressed when the control stop 27a comes into active system with the blocking edge 27e.
- the spool consists of two opposite surfaces of the lever arm 27d out Boards that each can operate a pawl 22 and which act on the control switch assembly 36.
- the Normally open contacts 37 can still make work contacts 41 and 42 be provided which a circuit for reporting the Ready for switching on and a circuit for the Control switch-on auxiliary release 34.
- the Switch-on auxiliary trigger 34 can only be actuated when the eccentric 15 has passed top dead center and the locking roller 27a and the locking member 27b Lock slide 38 has moved.
- the switch-on trigger can So only be actuated when the closing spring is full ready to switch on.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Control Of Stepping Motors (AREA)
- Control Of Direct Current Motors (AREA)
- Emergency Protection Circuit Devices (AREA)
Claims (15)
- Système d'entraínement pour un interrupteur (1), en particulier pour un interrupteur à moyenne tension, comportant un arbre de commande (24) qui est entraíné en rotation par un dispositif de commande (21, 22, 24) et qui est couplé avec un dispositif d'encliquetage rotatif dépendant du sens de rotation et qui est par ailleurs en liaison d'entraínement avec un arbre de tension (12) qui ne peut tourner que dans un seul sens de rotation, qui est couplé avec l'interrupteur (1) et qui est solidaire en rotation avec un excentrique (14) dont une extrémité est accrochée à un ressort de fermeture (16) dont la deuxième extrémité est fixe et qui est tendu et détendu lors de la course de rotation de l'excentrique (14), dans lequel l'interrupteur (1) est fermé après une course de détente commandée au moyen d'un verrou de fermeture (27) et d'un déclencheur de fermeture (29) et un ressort d'ouverture (8) associé à l'interrupteur est détendu et est maintenu, de manière amovible, dans la position de détente au moyen d'un verrou d'ouverture (7), caractérisé en ce que, entre le dispositif de commande (21, 22, 24) et l'arbre de tension (12), on dispose, de manière supplémentaire, un jeu d'engrenages démultiplicateur (10, 20) à rapport de transmission entier et en ce que le verrou de fermeture (27) et le déclencheur de fermeture (29) sont en liaison active avec le jeu d'engrenages supplémentaire (19, 20) et sont commandés de manière dépendante de la position angulaire de l'arbre de tension (12).
- Système d'entraínement selon la revendication 1, caractérisé en ce que, entre l'arbre de commande (24) et l'arbre de tension (12), on dispose mécaniquement un arbre d'entraínement (19), en ce que le dispositif d'encliquetage rotatif (21, 22) couple l'arbre de commande (24) par engrenage avec l'arbre d'entraínement (19), en ce que l'arbre de tension (12) porte une roue de tension (17) et l'arbre d'entraínement (19) porte une roue d'entraínement (20) de plus petit diamètre que la roue de tension (17), en ce que les roues (20, 17) sont reliées entre elles de manière rigide par engrènement, sont reliées avec les arbres respectifs (19, 12) et présentent également un rapport de transmission entier et en ce que le verrou de fermeture (27) et le déclencheur de fermeture (29) sont associés à l'arbre d'entraínement (19), dans lequel, lors du dépassement de la course maximale de tension de l'excentrique (14, 15), le verrou de fermeture (27) bloque la roue d'entraínement (20) de manière amovible par l'intermédiaire du déclencheur de fermeture (29) et dispositif de commande (21, 22, 24, 25, 26) est rendu inactif.
- Système d'entraínement selon la revendication 1 ou 2, caractérisé en ce que le déclencheur auxiliaire de fermeture (34) libère le blocage de la roue d'entraínement (20) et rend actif le dispositif de commande au moins de manière indirecte.
- Système d'entraínement selon la revendication 1 ou l'une quelconque des revendications suivantes, caractérisé en ce que le verrou de fermeture (27) comporte une roulette de verrouillage (27a) reliée à l'arbre d'entraínement (19), un élément de verrouillage (27b) monté sur palier et pouvant être réglé transversalement par rapport à la direction de déplacement de la roulette de verrouillage (27a) et un téton de commande (27c) prévu sur l'arbre de tension (12), dans lequel le téton de commande (27c) règle, (juste) avant le dépassement de la course maximale de tension de l'excentrique (14, 15), l'élément de verrouillage (27b) dans le chemin de roulement de la roulette de verrouillage (27a).
- Système d'entraínement selon la revendication 4, caractérisé en ce que la roulette de verrouillage (27a) se trouve, juste avant ou pendant le dépassement de la course maximale de tension de l'excentrique (14, 15), devant l'élément de verrouillage (27b, 27e) à une distance angulaire qui est inférieure à 360° et, en particulier, inférieure à 90 °.
- Système d'entraínement selon la revendication 4 ou 5, caractérisé en ce que le déclencheur de fermeture (29) verrouille de manière amovible l'élément de verrouillage (27b) dans sa position de blocage à l'encontre d'une force produite entre la roulette de verrouillage (27a) et un flanc de verrouillage (27e).
- Système d'entraínement selon la revendication 1 ou l'une quelconque des revendications suivantes, caractérisé en ce que les arbres de commande, d'entraínement et de tension (24, 19, 12) s'étendent parallèlement les uns par rapport aux autres.
- Système d'entraínement selon la revendication 1 ou l'une quelconque des revendications suivantes, caractérisé en ce que la roulette de verrouillage (27a) est disposée sur la roue à cliquet (21) et le téton de commande (27c) est disposé sur la roue de tension (17).
- Système d'entraínement selon la revendication 1 ou l'une quelconque des revendications suivantes, caractérisé en ce que l'élément de verrouillage (27b) du verrou de fermeture (27) comporte un bras de levier qui est monté à rotation autour d'un axe fixe (28) et qui, dans une de ses positions de basculement, s'accroche sur un flanc de démarrage (27d) se trouvant dans le chemin de réglage du téton de commande (27c) et, dans son autre position de basculement, s'accroche avec un flanc de verrouillage (27e) se trouvant dans le chemin de réglage de la roulette de verrouillage (27a).
- Système d'entraínement selon la revendication 9, caractérisé en ce que le bras de levier (27d) est monté, à distance d'un plan contenant les arbres d'entraínement et de tension (10, 12), sur palier à pivotement autour d'un axe (28) s'étendant parallèlement à l'arbre d'entraínement (19) et pénètre dans ce plan entre les arbres (19, 12) et en ce que le déclencheur de fermeture (29) est associé à l'extrémité libre du bras de levier (27d).
- Système d'entraínement selon la revendication 9 ou 10, caractérisé en ce que, à l'extrémité libre du bras de levier (27d) est prévu un flanc de déclenchement (30) qui, dans la position de verrouillage du bras de levier (27d), est en accrochage avec un bras de déclenchement, réglable parallèlement au plan du flanc de déclenchement (30), du déclencheur de fermeture (29).
- Système d'entraínement selon la revendication 1 ou l'une quelconque des revendications suivantes, caractérisé en ce que l'arbre d'entraínement (19) comporte une roue à cliquet (21) présentant une denture d'encliquetage et avec laquelle s'accroche au moins un dispositif de cliquet à poussée (22) monté de manière excentrique sur palier sur l'arbre de commande (24).
- Système d'entraínement selon la revendication 12, caractérisé en ce que le bras de levier de l'élément de verrouillage (27b) avec le flanc de verrouillage (27e) ou un poussoir de commande (38) pouvant se déplacer par rapport à ce dernier et disposé sur l'axe (28) est réglable dans la zone d'actionnement du dispositif de cliquet à poussée (22).
- Système d'entraínement selon la revendication 13, caractérisé en ce qu'un dispositif de commande à commutateurs (36), qui comporte au moins un commutateur de commande (37) qui commande l'alimentation en courant d'un moteur (26) entraínant l'arbre de commande (24), est couplé avec le bras de levier mobile (27d) ou avec le poussoir de commande (38).
- Système d'entraínement selon au moins l'une des revendications 1 à 13, caractérisé en ce qu'à l'arbre de tension (12) est reliée une came de commande à laquelle est associé un dispositif de commande à commutateurs de telle manière que, du fait du dépassement de la course maximale de tension de l'excentrique (15), un commutateur de commande arrête un moteur (26) entraínant l'arbre de commande (24) au-delà d'un angle de rotation limité de l'arbre de tension (12).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19650590A DE19650590B4 (de) | 1996-12-06 | 1996-12-06 | Antrieb für einen Schalter |
DE19650590 | 1996-12-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0847065A1 EP0847065A1 (fr) | 1998-06-10 |
EP0847065B1 true EP0847065B1 (fr) | 1999-06-09 |
Family
ID=7813794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97116527A Expired - Lifetime EP0847065B1 (fr) | 1996-12-06 | 1997-09-23 | Système d'entraínement pour un interrupteur |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0847065B1 (fr) |
DE (2) | DE19650590B4 (fr) |
ES (1) | ES2132992T3 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19904179A1 (de) * | 1999-02-03 | 2000-08-10 | Abb Patent Gmbh | Federspeicherantrieb für ein elektrisches Schaltgerät |
EP1244124A1 (fr) * | 2001-03-21 | 2002-09-25 | Technoelectric s.r.l. | Commande à accumulateur d'énergie à ressort pour interrupteur à moyenne et haute tension |
DE10153108C1 (de) * | 2001-10-22 | 2003-11-13 | Siemens Ag | Verfahren zur Steuerung eines zwischen einer "Einfahrstellung" und einer "Ausfahrstellung" verfahrbaren elektrischen Schaltermoduls |
DE102011119830A1 (de) * | 2011-12-01 | 2013-06-06 | Abb Technology Ag | Antriebsvorrichtung für einen elektrischen Hochspannungsleistungsschalter |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7143984U (de) * | 1971-11-23 | 1972-02-03 | Siemens Ag | Antrieb fur einen elektrischen Leistungs Schalter |
DE3623247A1 (de) * | 1986-07-10 | 1988-01-21 | Sachsenwerk Ag | Spannvorrichtung fuer die antriebsfeder eines energiespeichers fuer elektrische schalter |
EP0658909B1 (fr) * | 1993-12-13 | 1996-10-23 | GEC Alsthom T&D AG | Dispositif d'entraînement pour un disjoncteur de puissance |
DE4442603C2 (de) * | 1994-11-30 | 1996-10-24 | Licentia Gmbh | Antriebseinrichtung für ein elektrisches Schaltgerät |
DE19504714B4 (de) * | 1995-02-14 | 2006-08-24 | Daimlerchrysler Ag | Verfahren und Vorrichtung zur Überwachung einer Zustandsgröße eines Leistungsschalters |
-
1996
- 1996-12-06 DE DE19650590A patent/DE19650590B4/de not_active Expired - Fee Related
-
1997
- 1997-09-23 EP EP97116527A patent/EP0847065B1/fr not_active Expired - Lifetime
- 1997-09-23 DE DE59700199T patent/DE59700199D1/de not_active Expired - Lifetime
- 1997-09-23 ES ES97116527T patent/ES2132992T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59700199D1 (de) | 1999-07-15 |
ES2132992T3 (es) | 1999-08-16 |
EP0847065A1 (fr) | 1998-06-10 |
DE19650590B4 (de) | 2006-08-17 |
DE19650590A1 (de) | 1998-06-10 |
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