EP0240884B1 - Entraînement pour générer un mouvement linéaire pour un consommateur - Google Patents

Entraînement pour générer un mouvement linéaire pour un consommateur Download PDF

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Publication number
EP0240884B1
EP0240884B1 EP87104645A EP87104645A EP0240884B1 EP 0240884 B1 EP0240884 B1 EP 0240884B1 EP 87104645 A EP87104645 A EP 87104645A EP 87104645 A EP87104645 A EP 87104645A EP 0240884 B1 EP0240884 B1 EP 0240884B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
space
piston
drive
piston rod
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
EP87104645A
Other languages
German (de)
English (en)
Other versions
EP0240884A2 (fr
EP0240884A3 (en
Inventor
Joachim Eggers
Rudi Weingärtner
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of EP0240884A2 publication Critical patent/EP0240884A2/fr
Publication of EP0240884A3 publication Critical patent/EP0240884A3/de
Application granted granted Critical
Publication of EP0240884B1 publication Critical patent/EP0240884B1/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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic

Definitions

  • the invention relates to a drive according to the preamble of claim 1.
  • Such a drive is known from EP-A-0158054.
  • the high-pressure hydraulic accumulator described there which is to be used essentially to drive high-voltage circuit breakers, has a piston which is driven via pull rods by a plate spring assembly to generate pressurized fluid at high pressure.
  • the tie rods reach through the plate spring assembly, which makes them relatively long, which ultimately leads to a large-volume construction.
  • the object of the invention is to design and arrange the storage spring and in particular the piston-cylinder arrangement in such a way that a considerable reduction in size is achieved.
  • This object is achieved according to the invention by the characterizing features of claim 1.
  • the hydraulic drive is designated in its entirety by reference number 10 and has in a surrounding housing 11 a piston-cylinder arrangement 12 with a cylinder body 13 and a piston 15 which can be pushed back and forth in a bore 14 of the cylinder body and a piston rod 16 is formed on the upper piston surface thereof which is used to drive an electrical high-voltage circuit breaker 17, which is only shown schematically.
  • the cylinder body 13 has at its upper end a support plate 18 which extends radially to the longitudinal axis of the cylinder bore or the bore 14 and has a shoulder 19 on its outer edge, on which the free edge of a cup-shaped hood 20 with the interposition of a Seal 21 is placed.
  • the pot-shaped hood comprises the piston rod 16 in the region of its base part 22 with the interposition of a seal 23 in an opening 24.
  • the cylinder bore 14 has two recesses 25 and 26, each with a different diameter, which serve to receive a high-pressure insert body 27.
  • the high-pressure insert body 27 is elongated cylindrically and has at one end a flange-like edge 28 which fits into the recess 26 with the interposition of a seal 29, whereas this flange-like edge 28 is then followed by a collar-shaped projection 30, which in the recess 26, also below Interposition of a seal 31 fits.
  • the high-pressure insert body 27 has an inner bore 32 which narrows in the region of the flange-like edge 28 and the collar-shaped projection 30, so that the piston rod is surrounded there with play; the gap 33 formed there acts together with the piston rod 17 or the piston 15 as damping, in particular when, as for example in the case of the piston according to FIG. 2 of EP-A-0158054, there are step transitions between the piston and the piston rod.
  • step transitions are known _ as can be seen _, so that there is no need to go into them here.
  • a pin 34 is formed, which fits into an outflow bore 35, whereby damping takes place when the piston reaches its lower position (see FIG. 3).
  • the cylinder bore 14 merges into the outflow bore 35 narrowed with respect to the cylinder bore 14 (see also below).
  • the free end of the cylinder wall 39 is provided with a radially projecting edge 41, to which one end of an energy store 42 (storage spring) designed as a disk spring assembly is connected. The other end of the energy store bears against a shoulder 43 on the base part 22.
  • the edge 41 has at its left end (see drawing FIG. 1) an extension 44 to which a transmission rod 45 is connected, which extends through the carrier plate 18 with the interposition of a seal 46 from the space 47 delimited by the carrier plate 18 and the hood 20 protrudes; at the lower end of the transmission rod a link surface 48 is attached, which cooperates with one or more signal switches 49, so that the position of the cylinder 36 in the space 47 can be inferred from the switching position of the signal switch 49.
  • a slide valve 50 connects, the slide interior 51 of which is connected to the outflow bore 35.
  • the slide 52 is driven by means of electromagnets 53, 54 and on each side is a valve seat 55 or 56, which interacts with a valve plate 57 or 58 attached to the slide 52, lines 59 and 60 are connected, of which the line 59 communicates with the space 47 and the line 60 also through the high-pressure insert body 27 with the space 61 formed within the cylinder 36.
  • a locking element in the form of a locking piston 62 which, pressed radially inward by means of a spring 63, engages in a recess 64 on the piston and can thus hold the piston in the position shown in FIG. 1.
  • the line 60 is connected via two non-return valves 65 and 66, respectively, to a follow-up line 67 connected to the space 47, in which a motor pump 68 is inserted, with which pressure fluid is fed from the space 47 via the line 60 into the space 61 can be.
  • a motor pump 68 is inserted
  • the alarm switches 70 are attached at the lower end of the cylinder body 13
  • a double arm lever 71 is articulated with its one arm, which is supported on a post 72.
  • the post 72 is attached to the hood 20.
  • the free end of the other arm of the double arm lever 71 is connected by means of a guide rod 73 to a drive lever 74 which actuates the signaling switch 70, on the basis of whose position the position of the piston rod and thus of the sight holder 17 is detected.
  • space 47 is the so-called low-pressure space in which the energy storage spring 42 is located in the form of the plate spring assembly.
  • the space 61 is the space in which high-pressure fluid is located, which is kept at a suitably high pressure due to the spring force of the energy storage spring 42.
  • the slide 52 is moved to the right via the electromagnetic valve 53, as a result of which the valve opening between the valve seat 55 and the plate 57 is released.
  • the hydraulic fluid then flows in the area of the larger piston area, i.e. thus in the area below the piston 15 (see drawing) through the outlet opening 35 and the line 59 into the low-pressure collecting chamber 47. Since high-pressure fluid is still present in the high-pressure chamber 61, the piston is driven downward and the switch is opened in the process.
  • the cylinder 36 will also move downward under the pressure of the storage spring 42, but only by a distance corresponding to the volume of the pressure fluid removal for the switch-off action.
  • the cylinder assumes the position according to FIG. 2, in which the edge 41 rests on the carrier plate 18 (see FIG. 2).
  • This position causes the signaling switch 49 to close via the link surface 48 and accordingly activates the motor 68, so that pressure fluid is fed into the chamber 61 from the low-pressure chamber 47 via the line 67, through the motor 68, the check valve 66 and the line 60 , whereby the cylinder 36 is moved upwards until the energy storage spring is fully tensioned again, see FIG. 3.
  • valve opening between the valve plate 58 and the valve seat 56 is opened; this brings high pressure fluid from the high pressure chamber 61 via line 60, the valve opening between the valve plate 58 and the valve seat 56 to the space below the piston 15; since the piston 15 with the piston rod 16 acts as a differential piston, the smaller surface of which lies above the piston, the piston 15 is pressed upwards to close the switch 17 due to the difference in force corresponding to the area difference. The switch is thus switched on again.

Landscapes

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

Claims (5)

1. Dispositif d'entraînement pour la production d'un mouvement linéaire pour un utilisateur, en particulier un disjoncteur de puissance à haute tension à isolation gazeuse par SF₆, comprenant un dispositif piston moteur-cylindre (12) avec un corps de cylindre (13) dans l'alésage (14) duquel un piston moteur (15) muni d'une tige de piston (16) peut être déplacé de manière alternative à l'aide d'un fluide à haute pression, l'utilisateur (17) étant fixé à l'extrémité faisant saillie hors du corps de cylindre, un dispositif cylindre-piston (27, 36), dont la chambre de cylindre (61) forme une chambre accumulatrice compressible au moyen d'un ressort accumulateur (42) pour le fluide à haute pression, qui peut être amené au piston moteur au moyen d'éléments de commande pour la production de son mouvement, et une chambre collectrice (47) pour le fluide à haute pression se trouvant à une pression plus faible, caractérisé en ce que
(a) la chambre collectrice (47) _ formant un ensemble avec le corps de cylindre (13) _ fait suite à l'extrémité du corps de cylindre (13) côté tige de piston, la chambre collectrice (47) étant traversée par la tige de piston (16),
(b) un insert (27) de forme cylindrique, faisant saillie dans la chambre collectrice (47), et servant de fond au dispositif cylindre-piston, fait suite à l'alésage de cylindre (14) et entoure la tige de piston (16),
(c) l'extrémité libre de l'insert est entourée par un cylindre (36) en forme de cuve, le cylindre (36) formant avec l'insert la chambre accumulatrice (61) et entourant également la tige de piston (16), et
(d) il est prévu à l'extérieur du cylindre (36), dans la chambre collectrice au moins un ressort accumulateur (42), qui repousse le cylindre (36) sur l'insert.
2. Entraînement selon la revendication 1, caractérisé en ce que le cylindre (36) présente à son extrémité tournée vers le corps de cylindre (13) un bord (41) s'étendant radialement vers l'extérieur, qui sert d'appui pour au moins un ressort accumulateur (42).
3. Entraînement selon l'une des revendications précédentes, caractérisé en ce que l'insert (27) s'engage dans l'alésage de cylindre (14) par un épaulement (30) en forme de collet.
4. Entraînement selon l'une des revendications précédentes, caractérisé en ce qu'une plaque support (18) est formée sur l'extrémité du corps de cylindre (13) côté tige de piston, sur laquelle est montée une calotte (20), et en ce que la chambre (47) de la chambre collectrice pour le fluide à basse pression est formée entre la plaque support (18) et la surface intérieure de la calotte (20).
5. Entraînement selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu, à l'extrémité du corps de cylindre (13) opposée au piston moteur, une soupape à tiroir (50) commandée par voie électromagnétique, qui met en relation la chambre à haute pression (61) avec la chambre située en-dessous du piston (15) et la chambre à basse pression (47) via des conduites de commande (59, 60) s'étendant à l'intérieur du corps de cylindre (13).
EP87104645A 1986-04-05 1987-03-28 Entraînement pour générer un mouvement linéaire pour un consommateur Expired - Lifetime EP0240884B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3611501 1986-04-05
DE19863611501 DE3611501A1 (de) 1986-04-05 1986-04-05 Antrieb zur erzeugung einer linearen bewegung fuer einen verbraucher

Publications (3)

Publication Number Publication Date
EP0240884A2 EP0240884A2 (fr) 1987-10-14
EP0240884A3 EP0240884A3 (en) 1988-01-07
EP0240884B1 true EP0240884B1 (fr) 1991-05-29

Family

ID=6298048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104645A Expired - Lifetime EP0240884B1 (fr) 1986-04-05 1987-03-28 Entraînement pour générer un mouvement linéaire pour un consommateur

Country Status (6)

Country Link
EP (1) EP0240884B1 (fr)
JP (1) JPH0737801B2 (fr)
CN (1) CN1008651B (fr)
DE (2) DE3611501A1 (fr)
HU (1) HU195685B (fr)
PL (1) PL156735B1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011445A1 (de) * 1990-04-09 1991-10-10 Abb Patent Gmbh Hydraulischer antrieb
DE29614893U1 (de) * 1996-08-28 1996-10-10 Abb Patent Gmbh, 68309 Mannheim Hochspannungsschalter
DE19637052A1 (de) * 1996-09-12 1998-03-19 Abb Patent Gmbh Hydraulischer Antrieb
DE19637051A1 (de) * 1996-09-12 1998-03-19 Abb Patent Gmbh Hydraulischer Antrieb
JP4062043B2 (ja) * 2002-10-04 2008-03-19 株式会社日立製作所 ガス絶縁開閉装置
DE102006041250A1 (de) * 2006-09-02 2008-03-06 Abb Technology Ag Antriebseinheit
US7633031B2 (en) * 2007-03-29 2009-12-15 Eaton Corporation Spring driven ram for closing a electrical switching apparatus
DE102008004063A1 (de) * 2008-01-12 2009-07-16 Abb Technology Ag Hydraulischer Antrieb
DE102008024097A1 (de) * 2008-05-17 2009-11-19 Abb Technology Ag Leistungsschalterantrieb
DE102011011311A1 (de) 2011-02-15 2012-08-16 Abb Technology Ag Antrieb für einen Hochspannungsleistungsschalter
CN102623264A (zh) * 2012-04-23 2012-08-01 沈阳东北电力调节技术有限公司 高压断路器液压操动机构的防慢分装置
DE102013005621B4 (de) * 2013-04-04 2021-05-06 Abb Power Grids Switzerland Ag Verriegelungsvorrichtung für einen hydromechanischen Federspeicherantrieb einer gasisolierten Schaltanlage
JP6180979B2 (ja) * 2014-03-25 2017-08-16 株式会社ショーワ ポンプ装置及び液圧アクチュエータ
JP6417242B2 (ja) * 2015-03-06 2018-10-31 株式会社日立製作所 開閉装置用駆動装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1936836A1 (de) * 1969-07-19 1971-02-18 Calor Emag Elektrizitaets Ag Druckmittelbetaetigter Antrieb fuer elektrische Hochspannungsschaltgeraete
JPS5626927B2 (fr) * 1973-07-04 1981-06-22
DE2629829C3 (de) * 1976-06-30 1979-10-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Hydraulische Betätigungsvorrichtung fur Hochspannungs-Leistungsschalter
DE3400488A1 (de) * 1983-03-16 1984-09-20 Kraftwerk Union AG, 4330 Mülheim Elektrohydraulischer kompaktantrieb fuer ventile von turbomaschinen, insbesondere turbinen
DE3328564A1 (de) * 1983-08-08 1985-03-07 MBS Mechanische Bearbeitungsstätten GmbH, 3560 Biedenkopf Pneumatischer zylindertrieb
DE3408909A1 (de) * 1984-03-10 1985-09-12 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Hydraulischer antrieb

Also Published As

Publication number Publication date
PL264985A1 (en) 1988-03-31
DE3770313D1 (de) 1991-07-04
DE3611501C2 (fr) 1992-05-07
JPH0737801B2 (ja) 1995-04-26
PL156735B1 (pl) 1992-04-30
HU195685B (en) 1988-06-28
CN87102578A (zh) 1987-11-11
EP0240884A2 (fr) 1987-10-14
JPS62237102A (ja) 1987-10-17
DE3611501A1 (de) 1987-10-08
CN1008651B (zh) 1990-07-04
EP0240884A3 (en) 1988-01-07
HUT44319A (en) 1988-02-29

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