EP1248918A1 - Switch mechanism - Google Patents

Switch mechanism

Info

Publication number
EP1248918A1
EP1248918A1 EP01998750A EP01998750A EP1248918A1 EP 1248918 A1 EP1248918 A1 EP 1248918A1 EP 01998750 A EP01998750 A EP 01998750A EP 01998750 A EP01998750 A EP 01998750A EP 1248918 A1 EP1248918 A1 EP 1248918A1
Authority
EP
European Patent Office
Prior art keywords
damping element
switch
drive
vertical
damping
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.)
Withdrawn
Application number
EP01998750A
Other languages
German (de)
French (fr)
Inventor
Friedrich Loebner
Gunnar Lutzke
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7666345&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1248918(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1248918A1 publication Critical patent/EP1248918A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/54—Arrangements for attachment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/28—Inclination of a suspension element

Definitions

  • the invention relates to a switch drive with a rotatably mounted, counter-gravity-oriented, hydraulic damping element for damping a switching movement.
  • Such a switch drive is for example from the
  • a switch drive is shown schematically on page B05-A.23.
  • the switch drive shown is a spring-loaded drive.
  • the necessary drive energy is provided by releasing previously tensioned spring assemblies.
  • the drive energy is transmitted via a gear, which has gears, shafts and levers.
  • damping elements In order to dampen the suddenly occurring high forces during a shift, damping elements are provided which absorb excess energy when an end position of the transmission is reached.
  • the damping element for the switch-on movement is designed as a hydraulic damping element and has a cylinder in which a piston moves within a hydraulic fluid.
  • Such hydraulic damping elements have a gas volume above the hydraulic fluid. It must be ensured that the piston is always completely flushed by the hydraulic fluid in order to always ensure a constant damping characteristic. Switches with different designs require the respective switch drives to be attached to different positions in different mounting positions.
  • the present invention is based on the object of designing a switch drive of the type mentioned at the outset in such a way that the hydraulic damping element is able to function consistently in different mounting positions.
  • the object is achieved in that the damping element is arranged in a position deflected from the vertical by 45 ° and can be pivoted slightly about this angular length.
  • Figure 1 shows the schematic structure of a switch drive in a first mounting position
  • Figure 2 shows the schematic structure of the switch drive in a second mounting position.
  • FIG. 1 shows a housing 1 of a spring-loaded drive 2.
  • the spring-loaded drive 2 has a spring 3 for providing the drive energy.
  • This spring 3 can be tensioned by an electric motor, not shown.
  • the spring 3 acts on a gear 4, which is indicated by dashed lines in the figure.
  • This gear 4 transmits the energy provided by the spring 3 to a drive rod 5, which drives the switching poles 6 of an electrical switching device.
  • a damping element 7 is provided to dampen the sudden switching movements.
  • the damping element 7 is pivoted out of the vertical by an angle of 45 ° and has a cylinder 8 filled with hydraulic fluid 9, in which a piston 10 moves.
  • the damping element 7 is rotatably arranged on the housing 1.
  • the piston 10 is designed such that it moves at high relative speeds of the piston 10 and cylinder 8 only with a high resistance within the hydraulic fluid 9.
  • the piston has 10 overflow channels.
  • the piston 10 is fastened to a piston rod 11 and is guided through it.
  • the piston rod 11 has an elongated hole 12, over which is operatively connected to a rotatable lever 13.
  • the rotatable lever 13 is arranged on a shaft 14 of the transmission 4. The lever 13 transmits the rotary movement of the shaft 14 moved during a switch-on process
  • the rotational movement of the shaft 14 and the movement of the drive rod 5 are coordinated so that shortly before reaching the end position, the damping effect of the damping element 7 begins and the switch-on movement is damped.
  • damping may be required for the switch-on movement and the switch-off movement.
  • a separate damping element must be provided for each of the movements, both being deflected from the vertical in the same way, in order to ensure the universal use of the switch drive both in a horizontal and in a vertical position.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The aim of the invention is to be able to arrange a switch mechanism comprising a hydraulic damping element (7) in two different assembly positions on a switch. To this end, the hydraulic damping element (7) must demonstrate a full functional capacity in both assembly positions. In order to ensure the same functional capacity in a first, for example, vertical assembly position and in a second, for example, horizontal assembly position, the damping element (7) is arranged in a position which deviates by 45 DEG from the vertical.

Description

Beschreibung description
Schalterantriebswitch drive
Die Erfindung bezieht sich auf einen Schalterantrieb mit einem drehbeweglich gelagerten, entgegen der Schwerkraft orientierten, hydraulischen Dämpfungselement zum Dämpfen einer Schaltbewegung.The invention relates to a switch drive with a rotatably mounted, counter-gravity-oriented, hydraulic damping element for damping a switching movement.
Ein derartiger Schalterantrieb ist beispielsweise aus demSuch a switch drive is for example from the
Prospekt "SF6 circuit breaker HPL" der Firma Asea, Juni 1986 bekannt. Darin ist auf der Seite B05-A.23 ein Schalterantrieb schematisch dargestellt. Der dargestellte Schalterantrieb ist ein Federspeicherantrieb. Die notwendige Antriebsenergie wird durch das Entspannen vorher gespannter Federpakete bereitstellt. Die Antriebsenergie wird über ein Getriebe, welches Zahnräder, Wellen und Hebel aufweist, übertragen.Brochure "SF 6 circuit breaker HPL" from Asea, June 1986 known. A switch drive is shown schematically on page B05-A.23. The switch drive shown is a spring-loaded drive. The necessary drive energy is provided by releasing previously tensioned spring assemblies. The drive energy is transmitted via a gear, which has gears, shafts and levers.
Um die bei einem Schaltvorgang schlagartig auftretenden hohen Kräfte zu dämpfen, sind Dampfungselemente vorgesehen, welche mit dem Erreichen einer Endlage des Getriebes überschüssige Energie aufnehmen. Bei dem dargestellten Schalterantrieb sind zwei Dämpfungselemente vorgesehen; ein Dampfungselement für die Einschaltbewegung und ein Dämpfungselement für die Aus- schaltbewegung. Das Dampfungselement für die Anschaltbewegung ist als hydraulisches Dampfungselement ausgeführt und weist einen Zylinder auf, in welchem sich ein Kolben innerhalb einer Hydraulikflüssigkeit bewegt. Derartige hydraulische Dämpfungselemente weisen über der Hydraulikflüssigkeit ein Gasvo- lumen auf. Es muss gewährleistet sein, dass der Kolben stets vollständig von der Hydraulikflüssigkeit umspült ist, um stets eine gleichbleibende Dämpfungscharakteristik sicher zu stellen. Konstruktiv unterschiedlich ausgestaltete Schalter erfordern einen Anbau der jeweiligen Schalterantriebe an unterschiedlichen Positionen in unterschiedlichen Montagelagen. Aufgrund der Ausrichtung der Dämpfungselemente ist es nicht ohne weiteres möglich, den Schalterantrieb in unterschiedlichen Lagen am Schalter zu montieren. Um zu gewährleisten, dass der Kolben des Dämpfungselementes im Zylinder stets vollständig von der Hydraulikflüssigkeit umgeben ist, müssen unterschiedliche Schalterantriebe für eine senkrechte und eine waagerechte Montagelage konstruiert werden.In order to dampen the suddenly occurring high forces during a shift, damping elements are provided which absorb excess energy when an end position of the transmission is reached. In the switch drive shown, two damping elements are provided; a damping element for the switch-on movement and a damping element for the switch-off movement. The damping element for the switch-on movement is designed as a hydraulic damping element and has a cylinder in which a piston moves within a hydraulic fluid. Such hydraulic damping elements have a gas volume above the hydraulic fluid. It must be ensured that the piston is always completely flushed by the hydraulic fluid in order to always ensure a constant damping characteristic. Switches with different designs require the respective switch drives to be attached to different positions in different mounting positions. Due to the alignment of the damping elements, it is not readily possible to mount the switch drive in different positions on the switch. In order to ensure that the piston of the damping element in the cylinder is always completely surrounded by the hydraulic fluid, different switch drives must be designed for a vertical and a horizontal mounting position.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Schalterantrieb der eingangs genannten Art so auszubilden, dass in verschiedenen Montagelagen eine gleichbleibende Funktionsfähigkeit des hydraulischen Dampfungselementes gewährleistet ist.The present invention is based on the object of designing a switch drive of the type mentioned at the outset in such a way that the hydraulic damping element is able to function consistently in different mounting positions.
Die Aufgabe wird bei einem Schalterantrieb der eingangs ge- nannten Art erfindungsgemäß dadurch gelöst, dass das Dämpfungselement in einer um 45° aus der Senkrechten ausgelenkten Lage angeordnet und um diese Winkelläge geringfügig schwenkbar ist.In a switch drive of the type mentioned at the outset, the object is achieved in that the damping element is arranged in a position deflected from the vertical by 45 ° and can be pivoted slightly about this angular length.
Bei einer derartigen Anordnung des Dämpfungselementes ist gewährleistet, dass der Kolben stets vollständig in die Hydraulikflüssigkeit eingetaucht ist und somit seine Dämpfungscharakteristik erhalten bleibt. Unabhängig von einer senkrechten oder waagerechten Montagelage des Schalterantriebes am Schal- ter bleibt die Lage des Dämpfungselementes erhalten. Somit kann der Schalterantrieb universell eingesetzt werden. Das geringfügige Schwenken um die Winkellage von 45° ermöglicht es, Bewegungen, die auf einer Kreisbahn verlaufen, effektiv zu dämpfen. Durch eine derartige Anordnung kann ein kostengünstiges zuverlässiges hydraulisches Dämpfungselement in dem Schalterantrieb eingesetzt werden.With such an arrangement of the damping element, it is ensured that the piston is always completely immersed in the hydraulic fluid and thus its damping characteristic is retained. Regardless of a vertical or horizontal mounting position of the switch drive on the switch, the position of the damping element is retained. The switch drive can thus be used universally. The slight swiveling around the angular position of 45 ° enables movements which run in a circular path to be effective to dampen. With such an arrangement, an inexpensive, reliable hydraulic damping element can be used in the switch drive.
Im Folgenden wird die Erfindung anhand eines Ausführungsbei- spieles in einer Zeichnung gezeigt und nachfolgend näher beschrieben. Dabei zeigt dieIn the following, the invention is shown on the basis of an exemplary embodiment in a drawing and described in more detail below. The shows
Figur 1 den schematischen Aufbau eines Schalterantriebes in einer ersten Montagelage, Figur 2 den schematischen Aufbau des Schalterantriebes in einer zweiten Montagelage .Figure 1 shows the schematic structure of a switch drive in a first mounting position, Figure 2 shows the schematic structure of the switch drive in a second mounting position.
Die Figur 1 zeigt ein Gehäuse 1 eines Federspeicherantriebes 2. Der Federspeicherantrieb 2 weist eine Feder 3 zum Bereit- stellen der Antriebsenergie auf. Diese Feder 3 kann durch einen nicht dargestellten Elektromotor gespannt werden. Die Feder 3 wirkt auf ein Getriebe 4, welches in der Figur gestrichelt angedeutet ist. Dieses Getriebe 4 überträgt die von der Feder 3 bereitgestellte Energie auf eine Antriebsstange 5, welche die Schaltpole 6 eines elektrischen Schaltgerätes antreibt. Zur Dämpfung der schlagartig auftretenden Schaltbewegungen ist ein Dampfungselement 7 vorgesehen. Das Dämpfungselement 7 ist um einem Winkel von 45° aus der Senkrechten ausgeschwenkt und weist einen mit Hydraulikflüssigkeit 9 ge- füllten Zylinder 8 auf, in welchem sich ein Kolben 10 bewegt. Das Dämpfungselement 7 ist drehbeweglich am Gehäuse 1 angeordnet. Der Kolben 10 ist derartig ausgebildet, dass er sich bei großen Relativgeschwindigkeiten vom Kolben 10 und Zylinder 8 nur mit hohem Widerstand innerhalb der Hydraulikflüs- sigkeit 9 bewegt. Zur Realisierung dieser Bewegungscharakteristik weist der Kolben 10 Überströmkanäle auf. Der Kolben 10 ist an einer Kolbenstange 11 befestigt und wird durch diese geführt. Die Kolbenstange 11 weist ein Langloch 12 auf, über welches sie mit einem drehbaren Hebel 13 in Wirkverbindung steht. Der drehbare Hebel 13 ist an einer Welle 14 des Getriebes 4 angeordnet. Der Hebel 13 überträgt die Drehbewegung der bei einem Einschaltvorgang bewegten Welle 14. Dabei sindFIG. 1 shows a housing 1 of a spring-loaded drive 2. The spring-loaded drive 2 has a spring 3 for providing the drive energy. This spring 3 can be tensioned by an electric motor, not shown. The spring 3 acts on a gear 4, which is indicated by dashed lines in the figure. This gear 4 transmits the energy provided by the spring 3 to a drive rod 5, which drives the switching poles 6 of an electrical switching device. A damping element 7 is provided to dampen the sudden switching movements. The damping element 7 is pivoted out of the vertical by an angle of 45 ° and has a cylinder 8 filled with hydraulic fluid 9, in which a piston 10 moves. The damping element 7 is rotatably arranged on the housing 1. The piston 10 is designed such that it moves at high relative speeds of the piston 10 and cylinder 8 only with a high resistance within the hydraulic fluid 9. In order to implement this movement characteristic, the piston has 10 overflow channels. The piston 10 is fastened to a piston rod 11 and is guided through it. The piston rod 11 has an elongated hole 12, over which is operatively connected to a rotatable lever 13. The rotatable lever 13 is arranged on a shaft 14 of the transmission 4. The lever 13 transmits the rotary movement of the shaft 14 moved during a switch-on process
« die Drehbewegung der Welle 14 und die Bewegung der Antriebs- Stange 5 so abgestimmt, dass kurz vor dem Erreichen der Endposition die dämpfende Wirkung des Dampfungselementes 7 einsetzt und die Einschaltbewegung gedämpft wird. Je nach Konstruktion des Antriebes kann es möglich sein, dass für die Einschaltbewegung und für die Ausschaltbewegung eine Dämpfung erforderlich ist. In diesem Fall ist für jede der Bewegungen ein separates Dämpfungselement vorzusehen, wobei beide gleichartig aus der Senkrechten ausgelenkt sind, um auch dann den universellen Einsatz des Schalterantriebes sowohl in ei- ner waagerechten als auch in einer senkrechten Lage zu gewährleisten.«The rotational movement of the shaft 14 and the movement of the drive rod 5 are coordinated so that shortly before reaching the end position, the damping effect of the damping element 7 begins and the switch-on movement is damped. Depending on the design of the drive, damping may be required for the switch-on movement and the switch-off movement. In this case, a separate damping element must be provided for each of the movements, both being deflected from the vertical in the same way, in order to ensure the universal use of the switch drive both in a horizontal and in a vertical position.
Um nunmehr den Schalterantrieb von der senkrechten in die waagerechte Montagelage zu überführen (senkrechte und wage- rechte Montage age beziehen sich auf die Lage der Antriebs-In order to transfer the switch drive from the vertical to the horizontal mounting position (vertical and horizontal mounting positions refer to the position of the drive
Stange 5) , ist es notwendig, den Schalterantrieb um eine parallel zu der Welle 14 liegende Drehachse um 90° zu drehen. Die waagerechte Montagelage ist in der Figur 2 dargestellt . Auch in dieser Montagelage weist das Dämpfungselement 7 eine Auslenkung um 45° aus der Senkrechten auf. Somit ist eine volle Funktionsfähigkeit des Dampfungselementes 7 in zwei senkrecht zueinander stehenden Montagelagen gewährleistet. Rod 5), it is necessary to rotate the switch drive by 90 ° about an axis of rotation lying parallel to the shaft 14. The horizontal mounting position is shown in Figure 2. In this mounting position too, the damping element 7 has a deflection of 45 ° from the vertical. This ensures full functionality of the damping element 7 in two mutually perpendicular mounting positions.

Claims

Patentanspruchclaim
Schalterantrieb mit einem drehbeweglich gelagerten, entgegen der Schwerkraft orientierten, hydraulischen Dämpfungselement (7) zum Dämpfen einer Schaltbewegung, d a d u r c h g e k e n n z e i c h n e t , dass das Dampfungselement (7) in einer um 45° aus der Senkrechten ausgelenkten Lage angeordnet und um diese Winkellage geringfügig schwenkbar ist. Switch drive with a rotatably mounted, counter-gravity-oriented, hydraulic damping element (7) for damping a switching movement, so that the damping element (7) is arranged in a position deflected 45 ° from the vertical and can be pivoted slightly about this angular position.
EP01998750A 2000-11-30 2001-10-04 Switch mechanism Withdrawn EP1248918A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10061164 2000-11-30
DE10061164A DE10061164C1 (en) 2000-11-30 2000-11-30 switch drive
PCT/DE2001/003877 WO2002044585A1 (en) 2000-11-30 2001-10-04 Switch mechanism

Publications (1)

Publication Number Publication Date
EP1248918A1 true EP1248918A1 (en) 2002-10-16

Family

ID=7666345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01998750A Withdrawn EP1248918A1 (en) 2000-11-30 2001-10-04 Switch mechanism

Country Status (5)

Country Link
US (1) US20050016962A1 (en)
EP (1) EP1248918A1 (en)
CN (1) CN1395660A (en)
DE (1) DE10061164C1 (en)
WO (1) WO2002044585A1 (en)

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Publication number Priority date Publication date Assignee Title
MX2013011028A (en) * 2011-03-25 2014-03-31 Abb Technology Ag Tap changer having a vaccum interrupter assembly with an improved damper.
CN103548106B (en) 2011-03-25 2017-02-08 Abb技术有限公司 Tap changer having an improved vacuum interrupter actuating assembly
DE102011089369A1 (en) 2011-12-21 2013-06-27 Siemens Aktiengesellschaft Switch drive for opening and closing switching contact of high voltage power switch, has tensioning motor coupled with displacement element and displacing displacement element from one end position into another end position
DE102015216172A1 (en) 2015-08-25 2017-03-02 Siemens Aktiengesellschaft Device and method for electrical switching with a magnetic motion damper
DE102015216768A1 (en) 2015-09-02 2017-03-02 Siemens Aktiengesellschaft Switch drive and method with a damping element for damping a movement
DE102015217956A1 (en) 2015-09-18 2017-03-23 Siemens Aktiengesellschaft Damping unit and method for damping movements in a circuit breaker
DE102016215699A1 (en) * 2016-08-22 2018-02-22 Siemens Aktiengesellschaft Device and method for switching medium and / or high voltages with specific drive characteristics
DE102018206166B4 (en) 2018-04-20 2021-08-05 Siemens Aktiengesellschaft Setting device and method for setting switchgear mechanisms
CN108938251B (en) * 2018-09-04 2024-01-09 江苏赛康医疗设备股份有限公司 Self-buffering medical bed board assembly

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NL96199C (en) * 1953-01-14 1900-01-01
DE1170260B (en) * 1958-06-10 1964-05-14 Boge Gmbh Hydraulic two-pipe telescopic damper, especially for motor vehicles
JPS59151709A (en) * 1983-02-16 1984-08-30 三菱電機株式会社 Operating device of electric equipment or like
FR2609839B1 (en) * 1987-01-21 1989-04-07 Merlin Gerin MECHANISM FOR HANGING THE CONTROL OF A THREE-POSITION CIRCUIT BREAKER
ATE80494T1 (en) * 1987-12-14 1992-09-15 Sprecher Energie Ag SPRING-LOAD MECHANISM FOR A HIGH-VOLTAGE SWITCH.
SE465902B (en) * 1990-03-28 1991-11-11 Asea Brown Boveri MANOEVERDON FOR POWER SWITCHES
DE4023740C2 (en) * 1990-07-26 1994-06-09 Licentia Gmbh Switch drive
FR2794278B1 (en) * 1999-05-28 2001-08-10 Alstom QUICK CONTROL DEVICE FOR A HIGH VOLTAGE CONNECTION APPARATUS, IN PARTICULAR AN EARTH ISOLATOR
JP2001023480A (en) * 1999-07-13 2001-01-26 Mitsubishi Electric Corp Breaker

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Also Published As

Publication number Publication date
CN1395660A (en) 2003-02-05
WO2002044585A1 (en) 2002-06-06
US20050016962A1 (en) 2005-01-27
DE10061164C1 (en) 2002-08-22

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