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WO1999038178A1 - Dispositif de serrage pour accumulateur d'energie d'un interrupteur de puissance basse pression - Google Patents

Dispositif de serrage pour accumulateur d'energie d'un interrupteur de puissance basse pression Download PDF

Info

Publication number
WO1999038178A1
WO1999038178A1 PCT/DE1999/000179 DE9900179W WO9938178A1 WO 1999038178 A1 WO1999038178 A1 WO 1999038178A1 DE 9900179 W DE9900179 W DE 9900179W WO 9938178 A1 WO9938178 A1 WO 9938178A1
Authority
WO
WIPO (PCT)
Prior art keywords
ratchet wheel
tensioning
energy accumulator
lever
clamping device
Prior art date
Application number
PCT/DE1999/000179
Other languages
German (de)
English (en)
Inventor
Ludvik Godesa
Marc Liebetruth
Jörg-Uwe DAHL
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1999038178A1 publication Critical patent/WO1999038178A1/fr

Links

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
    • H01H3/3021—Charging means using unidirectional coupling

Definitions

  • the invention relates to a tensioning device for an energy storage device of a low-voltage circuit breaker with a ratchet wheel which is seated on a tensioning shaft and which can be rotated step by step in a direction of rotation by means of a transport pawl which can be actuated by a tensioning lever.
  • the ratchet wheel tensions the clamping device during its rotary movement via a lever drive until it is blocked by a blocking device which can be released for switching, the reverse rotation being prevented by a pawl when the ratchet wheel is clamped.
  • the energy store can be, for example, a compression or tension spring or a group of compression or tension springs.
  • the tensioning lever is operated either by motor or by hand.
  • Such a tensioning device is e.g. B. from DE 35 41 093 AI known.
  • the blocking device is implemented here by a blocking lever engaging in the cams of a cam wheel, the cam wheel also being located on the tensioning shaft and being coupled to the ratchet wheel.
  • the blocking lever engages in the cam wheel in the sense of a lock on.
  • the lock can then be released via a further lever when the switching process is triggered.
  • the ratchet drive is mechanically decoupled from the ratchet wheel. This is done by a pin arranged on the transport pawl, which is carried by the blocking lever and moves the transport pawl out of engagement with the toothing of the ratchet wheel.
  • Transport pawl decoupled from the ratchet wheel in that a control disk connected to the ratchet wheel acts on a spring-loaded control pin mounted in a guide, which is pushed radially outward when the tensioning position is reached by the control curve of the control disk and with its rear end emerging from the guide, the transport pawl from the toothing of the ratchet wheel.
  • the invention is therefore based on the object of providing a tensioning device of the type mentioned at the outset, which is of simple construction and with which the functional reliability of the switch can be increased further.
  • the invention has the advantage that the tensioning device manages with a few, easy-to-manufacture individual parts and that the uncomplicated operation increases the switching reliability of the switch by arranging a control disk which moves with the ratchet wheel on the tensioning shaft and which over most of it its circumference has a concentric contour and over the remaining part of its circumference has a nose protruding beyond the concentric contour and the transport pawl has a control pin which is brought into contact with the control disk.
  • a tensioning lever 2 rotatably mounted on a tensioning shaft 1 carries a transport pawl 4 which can be rotated on an axis 3.
  • the transport pawl 4 is in engagement with a ratchet wheel 5 and rotates this when the tensioning lever 2 is actuated step by step indicated arrow direction, an energy storage device, for. B. a compression spring is tensioned.
  • a pawl 7 rotatably mounted on a base plate 6 prevents the ratchet wheel 5 from rotating backwards. 4
  • the clamping lever 2 can be operated by a hand lever 8 or also by a motor drive, not shown in the figures.
  • the tensioning lever 2 is operated until the likewise not shown here, for. B. trained as a toggle lever drive, has just exceeded its dead center.
  • the energy storage is designed so that it assumes the state of maximum energy storage in this position, i.e. that e.g. B. a compression spring is largely compressed in this position.
  • a blocking device becomes effective in this position, which is released when a switching operation is triggered.
  • the switching contacts of the circuit breaker are actuated when the switching process is triggered by the tensioning shaft 1, which is strongly accelerated by the energy store in the direction of rotation shown.
  • a fixed connection with the ratchet wheel 5 is a control disk 9 which, when the ratchet wheel 5 has reached the tensioned position, acts on a control pin 11 on the transport pawl 4 with a molded nose 10 and thus moves the transport pawl 4 out of the toothing of the ratchet wheel 5.
  • a further rotation of the ratchet wheel 5 by actuating the tensioning lever 2 is therefore no longer possible.
  • the nose 10 has such a dimension that when the ratchet wheel 5 is rotated further by approximately 20 °, the transport pawl 4, expediently under the action of a return spring, returns to the 5
  • the nose 10 is one on the otherwise provided concentric contour recessed undercut 12, in which the control pin 11, as shown in Figure 2, can intervene unhindered.

Landscapes

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

Abstract

L'invention concerne un dispositif de serrage pour accumulateur d'énergie d'un interrupteur de puissance basse pression. Le serrage d'un dispositif de serrage de ce type s'effectue à l'aide d'une roue à cliquet actionnée par un cliquet de guidage, et qui est en liaison avec un accumulateur d'énergie, par ex. un ressort de pression. Afin d'éviter qu'après serrage de l'accumulateur d'énergie par le système d'entraînement par moteur ou par un système d'entraînement par levier à main, des forces ne continuent d'être appliquées à la roue à cliquet, ce qui pourrait induire des détériorations mécaniques, le système d'entraînement par cliquet est désaccouplé mécaniquement de la roue à cliquet. Les systèmes connus du genre sont complexes en termes de mécanique et pas suffisamment fiables. Il est prévu de monter sur l'arbre de serrage (1) un disque de commande (9) entraîné avec la roue à cliquet (5), qui présente sur la majeure partie de sa périphérie, un contour concentrique et sur la partie restante de sa périphérie, un taquet (10) faisant saillie au-dessus du contour concentrique. Le cliquet de guidage (4) présente une broche de commande (11) montée de manière à reposer sur le disque de commande (9).
PCT/DE1999/000179 1998-01-23 1999-01-15 Dispositif de serrage pour accumulateur d'energie d'un interrupteur de puissance basse pression WO1999038178A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998103968 DE19803968A1 (de) 1998-01-23 1998-01-23 Spanneinrichtung für einen Energiespeicher eines Niederspannungs-Leistungsschalters
DE19803968.9 1998-01-23

Publications (1)

Publication Number Publication Date
WO1999038178A1 true WO1999038178A1 (fr) 1999-07-29

Family

ID=7856364

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/000179 WO1999038178A1 (fr) 1998-01-23 1999-01-15 Dispositif de serrage pour accumulateur d'energie d'un interrupteur de puissance basse pression

Country Status (2)

Country Link
DE (1) DE19803968A1 (fr)
WO (1) WO1999038178A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6965588B2 (en) 2001-11-29 2005-11-15 Motorola, Inc. Method for expediting transitions between states of operation in communications equipment
CN101777440B (zh) * 2009-12-24 2012-01-11 黄勤飞 用于操作机构中的驱动装置
CN102496532A (zh) * 2011-12-29 2012-06-13 无锡江南奕帆电力传动科技股份有限公司 用于断路器的电、手动一体化操作机构
CN101783255B (zh) * 2009-12-24 2012-07-11 黄勤飞 一种高压操作机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944772A (en) * 1974-10-18 1976-03-16 Westinghouse Electric Corporation Circuit breaker with low torque motor
US4095676A (en) * 1976-11-23 1978-06-20 Howe-Yin Research Co., Inc. Stored energy operation for breakers
DE3541093A1 (de) * 1985-11-18 1987-05-21 Siemens Ag Antriebsvorrichtung fuer einen niederspannungs-leistungsschalter mit einem klinkenrad
US4787480A (en) * 1986-08-13 1988-11-29 Sachesenwerk, Aktiengesellschaft Tensioning device for the energy store of an electrical switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944772A (en) * 1974-10-18 1976-03-16 Westinghouse Electric Corporation Circuit breaker with low torque motor
US4095676A (en) * 1976-11-23 1978-06-20 Howe-Yin Research Co., Inc. Stored energy operation for breakers
DE3541093A1 (de) * 1985-11-18 1987-05-21 Siemens Ag Antriebsvorrichtung fuer einen niederspannungs-leistungsschalter mit einem klinkenrad
US4787480A (en) * 1986-08-13 1988-11-29 Sachesenwerk, Aktiengesellschaft Tensioning device for the energy store of an electrical switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6965588B2 (en) 2001-11-29 2005-11-15 Motorola, Inc. Method for expediting transitions between states of operation in communications equipment
CN101777440B (zh) * 2009-12-24 2012-01-11 黄勤飞 用于操作机构中的驱动装置
CN101783255B (zh) * 2009-12-24 2012-07-11 黄勤飞 一种高压操作机构
CN102496532A (zh) * 2011-12-29 2012-06-13 无锡江南奕帆电力传动科技股份有限公司 用于断路器的电、手动一体化操作机构

Also Published As

Publication number Publication date
DE19803968A1 (de) 1999-07-29

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