EP0756749B1 - Systeme tendeur pour accumulateur a ressort - Google Patents

Systeme tendeur pour accumulateur a ressort Download PDF

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Publication number
EP0756749B1
EP0756749B1 EP95915768A EP95915768A EP0756749B1 EP 0756749 B1 EP0756749 B1 EP 0756749B1 EP 95915768 A EP95915768 A EP 95915768A EP 95915768 A EP95915768 A EP 95915768A EP 0756749 B1 EP0756749 B1 EP 0756749B1
Authority
EP
European Patent Office
Prior art keywords
lever
ratchet wheel
spring
pawl
cam disc
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
EP95915768A
Other languages
German (de)
English (en)
Other versions
EP0756749A1 (fr
Inventor
Ludvik Godesa
Husein Hodzic
Adolf Wihan
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0756749A1 publication Critical patent/EP0756749A1/fr
Application granted granted Critical
Publication of EP0756749B1 publication Critical patent/EP0756749B1/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
    • H01H3/3005—Charging means
    • 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
    • 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
    • H01H2003/3063—Decoupling charging handle or motor at end of charging cycle or during charged condition

Definitions

  • the invention relates to a tensioning device for a spring accumulator of a circuit breaker with a pivoted hand lever, a ratchet wheel which can be rotated step by step by means of a transport pawl connected to the hand lever and which can be locked against turning back by a pawl, a cam disc coupled to the ratchet wheel for actuating a lever system which is connected to the spring accumulator and has a knee joint and which can be moved from the fully tensioned position along a recessed edge of the cam disc to the starting position.
  • a tensioning device of this type is, for example, by the EP-B-0 089 463 has become known. Proceeding from this lies the Invention based on the object, a retroactive effect of To prevent spring accumulator on the hand lever when shifting so that neither the operator by switching the Circuit breakers are still endangered the switching process can even be influenced by the operator.
  • a device for interrupting the Power transmission from the hand lever to the ratchet fully tensioned spring accumulator is provided, wherein the device one on the recessed edge of the Cam attached in the path of the knee joint of the Lever system protruding projection and one on the Has cam attached driver that with a Working surface of a stop lever cooperating in this way is arranged that when reaching the fully tensioned Position the transport pawl by loading the Stop lever by the driver of the ratchet wheel can be lifted and also when the projection is applied the cam through the knee joint during the transfer of the lever system in the starting position of the stop lever by moving the driver away from the work surface can be released for renewed engagement of the transport pawl into the ratchet wheel.
  • the device ensures that the Hand lever when the fully cocked position is reached the spring accumulator decouples and when relaxing the Spring accumulator for switching on the circuit breaker immediately is effective again.
  • the device for decoupling the hand lever can be used with the fixed stop lever with the insertion of a Coupling spring connected decoupling lever include the one that interacts with the transport pawl in this way Work surface has that the transport pawl from that Ratchet edge can be lifted off or to engage the ratchet wheel can be released.
  • the clutch spring ensures that the Driver regardless of the movement of the transport pawl can be operated.
  • the stop lever and the decoupling lever can by one common pivot pin to be movable, the Disengaging lever a tensioning shaft carrying the ratchet wheel overlapping opening.
  • the device therefore takes takes up little space and is tight around the wave of Clamping device arranged around.
  • the lever arrangement shown schematically in FIG. 1 serves for actuating a switch contact arrangement, the one movable contact lever 1 and a fixed Has counter contact 2.
  • the movable contact lever 1 is on a pivotally mounted lever bracket 3 articulated and is provided with a contact force spring 4.
  • Two Toggle levers 5 and 6 connect the lever bracket 3 in an articulated manner a selector shaft 7, which is common to several poles Circuit breaker is provided.
  • a selector shaft 7, which is common to several poles Circuit breaker is provided.
  • the Toggle lever 5 and 6 shown in a folded position, in which the toggle 6 rests against a stop 10.
  • a spring accumulator 12 is provided, which is designed as a helical compression spring.
  • the Spring 12 serves a cam 13 in connection with toggle levers 14 and 15, at the connecting joint 16 the Cam 13 by means of a roller 17 shown in dashed lines attacks.
  • a roller 17 shown in dashed lines attacks.
  • One at that Knee joint 16 attacking support lever 20 is by means of a two-stage engagement latch supported. This includes a switch-on half shaft 21, a pivotable Main switch pawl 22, one with the main switch pawl 22 connected roller lever 23 and one with the support lever 20 connected auxiliary pawl 24.
  • the device shown in Figure 2 is a tension shaft 45 assigned to the cam 13 and has one on the Clamping shaft seated hand lever 46 for gradual clamping of the spring accumulator 12 by means of a ratchet wheel 47.
  • the Pawl 47 is rigidly coupled to the tension shaft 45. With a tooth 48 of the ratchet wheel 47 is one on the hand lever 46 hinged and provided with a pressure spring 51 Transport pawl 50 engaged.
  • the transport pawl 50 for example a pawl 52 is mounted on the opposite side arranged, which is also under the influence of a pressure spring 53 in engagement with a tooth 48 of the ratchet wheel 47 stands.
  • Around a further fixed bearing 54 are a stop lever 55 and a decoupling lever 56 pivotable stored.
  • the decoupling lever 56 has a stop surface 57 for the stop lever 55, a tension spring 60 the stop lever 55 and the decoupling lever 56 biased against each other. With an opening 59 overlaps Decoupling lever 56, the tensioning shaft 45.
  • the stop lever 55 is provided with a work surface 66 which is shown in FIG The position of the parts faces a driver 61, which is attached to the cam 13. Also owns the decoupling lever 56 a work surface 62 for Actuation of the transport pawl 50.
  • the recessed Edge 63 of cam 13 has a projection 64, which protrudes in the way of the roller 17 when it comes out of the cocked end position in the direction of an arrow 65 in the Near the tension shaft 45.
  • a tooth-like recess 65 in one of the teeth of the Klinkenrades 47 ensures that in the last section of the Clamping process of the spring accumulator 12 (Fig. 1) the clamping shaft 45 not one of the full pitch of the teeth 48 of the Pawl wheel 47 are turned back corresponding angle can, if the clamping stroke with the hand lever 46 is not is fully executed.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention concerne un système tendeur pour l'accumulateur à ressort (12) d'un sectionneur de puissance, qui comprend un levier à main (46) monté pivotant et une roue à cliquet (47). Un cliquet d'avancement (50) permet à la roue à cliquet (47) de tourner progressivement et un cliquet d'arrêt (52) la bloque pour éviter qu'elle ne tourne en sens inverse. La roue à cliquet (47) permet de faire tourner un disque à came (13) qui actionne l'accumulateur à ressort (12). Un entraîneur (61) situé sur le disque à came (13) et une partie saillante (64) située sur l'arête (63) en retrait du disque à came (13) pilotent un dispositif servant à interrompre la transmission de force du levier à main (46) à la roue à cliquet (47) lorsque l'accumulateur à ressort (12) est entièrement tendu.

Claims (4)

  1. Dispositif tendeur pour un accumulateur (12) à ressort d'un disjoncteur comportant :
    un levier (46) à main monté basculant,
    une roue (47) à cliquet, qui peut tourner pas à pas par un cliquet (50) de transport relié au levier (46) à main et qui peut être empêchée de tourner en sens inverse en étant bloquée par un cliquet (52) de blocage,
    une came (13) couplée à la roue (47) à cliquet et servant à actionner un système (14,15) de levier, qui est relié à l'accumulateur (12) à ressort, qui comporte une articulation (16) à genouillère et qui peut être déplacé le long d'un bord (63) en retrait de la came (3) de la position totalement tendue à la position de départ,
       caractérisé en ce que
    l'articulation (16) à genouillère du système (14,15) de levier coopère avec la came (13),
    il est prévu un dispositif pour interrompre la transmission de force du levier (46) à main à la roue (47) à cliquet lorsque l'accumulateur (12) à ressort est totalement tendu,
    le dispositif comportant une partie (64) en saillie ménagé sur le bord (63) en retrait de la came (13) et faisant saillie dans le chemin de l'articulation (16) à genouillère du système (14,15) de levier et
    un toc (61) d'entraínement qui est ménagé sur la came (13) et qui est monté pour coopérer avec une surface (66) de travail d'un levier (55) d'arrêt de telle manière que, lorsque la position totalement tendue est atteinte, le cliquet (50) de transport peut être soulevé de la roue (47) à cliquet en soumettant le levier d'arrêt à une force par le toc (61) d'entraínement et que de plus, lorsque la partie (64) en saillie de la came (13) est soumise à une force par le levier (16) à genouillère lorsque le système (14,15) de levier vient à la position de départ, le levier (55) d'arrêt peut être dégagé de la surface (66) de travail par la poursuite du déplacement du toc (61) d'entraínement, en vue de mettre à nouveau en prise le cliquet (50) de transport dans la roue (47) à cliquet.
  2. Dispositif tendeur suivant la revendication 1, caractérisé en ce que le dispositif servant à désactiver le levier (46) à main comprend un levier (56) désaccouplement qui est relié, avec insertion d'un ressort (60) de couplage, au levier (55) d'arrêt monté fixe et qui a une surface (62) de travail qui coopère avec le cliquet (50) de transport de telle manière que le cliquet (50) de transport peut être soulevé du bord (47) de cliquet ou dégagé pour être mis en prise dans le bord (47) de cliquet.
  3. Dispositif tendeur suivant la revendication 1 ou 2, caractérisé en ce que le levier d'arrêt (55) et le levier (56) de désaccouplement sont mobiles par rapport à un pivot (54) commun et en ce que le levier (56) de désaccouplement a une ouverture (59) qui recouvre un arbre (45) de blocage portant la roue (47) à cliquet.
  4. Dispositif tendeur suivant l'une des revendications précédentes caractérisé en ce que la dent (48) de la roue (47) qui coopère en dernier avec le cliquet (52) de blocage à la suite de l'opération de tension de l'accumulateur (12) à ressort a au dos, pour former une position d'encliquetage supplémentaire, un creux (65) en forme de dent.
EP95915768A 1994-04-20 1995-04-10 Systeme tendeur pour accumulateur a ressort Expired - Lifetime EP0756749B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4416106 1994-04-20
DE4416106A DE4416106A1 (de) 1994-04-20 1994-04-20 Spannvorrichtung für einen Federspeicher
PCT/DE1995/000492 WO1995029494A1 (fr) 1994-04-20 1995-04-10 Systeme tendeur pour accumulateur a ressort

Publications (2)

Publication Number Publication Date
EP0756749A1 EP0756749A1 (fr) 1997-02-05
EP0756749B1 true EP0756749B1 (fr) 1998-07-01

Family

ID=6517527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95915768A Expired - Lifetime EP0756749B1 (fr) 1994-04-20 1995-04-10 Systeme tendeur pour accumulateur a ressort

Country Status (4)

Country Link
EP (1) EP0756749B1 (fr)
JP (1) JPH09512132A (fr)
DE (2) DE4416106A1 (fr)
WO (1) WO1995029494A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006006907A1 (de) * 2006-02-09 2007-08-16 Siemens Ag Anordnung insbesondere zum Betätigen einer Transportklinke und Spannvorrichtung für einen Federspeicher eines elektrischen Schalters mit einer derartigen Anordnung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2935833A1 (fr) * 2008-09-05 2010-03-12 Schneider Electric Ind Sas Dispositif de commande de l'ouverture et/ou de la fermeture des contacts dans un appareil electrique
DE102013227004B4 (de) * 2013-12-20 2021-06-02 Siemens Aktiengesellschaft Elektrischer Leistungsschalter
CN105374641B (zh) * 2014-08-29 2017-09-05 上海良信电器股份有限公司 一种断路器用手动储能装置
CN113964727B (zh) * 2021-11-18 2023-04-07 国网辽宁省电力有限公司检修分公司 一种更换输电线路架空光缆的检修工具

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3541093A1 (de) * 1985-11-18 1987-05-21 Siemens Ag Antriebsvorrichtung fuer einen niederspannungs-leistungsschalter mit einem klinkenrad

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006006907A1 (de) * 2006-02-09 2007-08-16 Siemens Ag Anordnung insbesondere zum Betätigen einer Transportklinke und Spannvorrichtung für einen Federspeicher eines elektrischen Schalters mit einer derartigen Anordnung
US7902472B2 (en) 2006-02-09 2011-03-08 Siemens Aktiengesellschaft Arrangement, in particular, for activating a transport pawl and clamping device for a spring energy store of an electric switch comprising such an arrangement
CN101379576B (zh) * 2006-02-09 2011-04-13 西门子公司 用于作动传动爪的装置和一种张紧装置
DE112007000202B4 (de) 2006-02-09 2022-07-14 Siemens Aktiengesellschaft Anordnung insbesondere zum Betätigen einer Transportklinke und Spannvorrichtung für einen Federspeicher eines elektrischen Schalters mit einer derartigen Anordnung

Also Published As

Publication number Publication date
DE59502686D1 (de) 1998-08-06
DE4416106A1 (de) 1995-10-26
EP0756749A1 (fr) 1997-02-05
JPH09512132A (ja) 1997-12-02
WO1995029494A1 (fr) 1995-11-02

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