EP0655761B1 - Hydraulic system for actuating at least one lineary moving element - Google Patents
Hydraulic system for actuating at least one lineary moving element Download PDFInfo
- Publication number
- EP0655761B1 EP0655761B1 EP94118333A EP94118333A EP0655761B1 EP 0655761 B1 EP0655761 B1 EP 0655761B1 EP 94118333 A EP94118333 A EP 94118333A EP 94118333 A EP94118333 A EP 94118333A EP 0655761 B1 EP0655761 B1 EP 0655761B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- distribution rail
- hydraulic device
- piston
- pressure
- pressure reservoir
- 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
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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
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/64—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
Definitions
- the invention relates to a hydraulic device according to the preamble of claim 1.
- Such a hydraulic device is used in particular to actuate the movable contact pieces of a high-voltage circuit breaker, high voltage also being understood to mean the medium-voltage range.
- a circuit breaker can be designed as a gas-insulated, in particular SF 6 -insulated, as a metal-enclosed switch or as an outdoor switch.
- the drives for actuating each circuit breaker or the movable contact piece in each case one pole or several poles of the circuit breaker have an energy store which can be designed as a spring accumulator, the energy of which is released for actuating the movable contact piece.
- the energy store is integrated in a hydraulic device, and the movable contact (s) are each connected to a working piston.
- the hydraulic energy is supplied on both sides to the working piston both in the room with the larger area and in the room with the smaller area, so that the piston is moved in a switching position.
- actuating a suitable changeover valve the space, which is limited by the larger piston area, is connected to a low-pressure container, as a result of which the piston can suddenly move and move the movable contact piece into the switched-off position.
- Such a device is known from FR-A 2 685 541.
- a block with a valve is provided which is connected to a piping system
- High pressure fluid to the main valve controls, being between the block and the main valve Pipelines are provided, the arrangement with respect to assembly comparatively make it complicated.
- the object of the invention is to provide a hydraulic device of the type mentioned create, which is considerably simplified compared to the known device.
- the central distribution device is in the form of a distribution rail formed, which has a rectangular cross section and is elongated; the Lines for high pressure and low pressure hydraulic fluid are formed by two parallel longitudinal bores within the distribution rail.
- the distribution rail has a further advantage that it is used at the same time be able to hold the individual components.
- the distributor rail is not only used to distribute the hydraulic fluid, but also to hold the individual components, so that the individual components together with the busbar a preassembled unit form.
- hydraulic device according to the invention on a metal-encapsulated, gas-insulated Switchgear is flange-mounted, then there is the piston-cylinder arrangement between the distribution rail and the flange; the control valves are on the Flange-side side surface of the distribution rail attached.
- a further simplification of the invention can be that the individual components modular design and on the distribution rail with the interposition of a The same seal for all connections to the high-pressure and low-pressure lines leading connecting lines are attached. This allows assembly and warehousing be simplified considerably.
- the storage space of the Energy or high pressure storage directly on the distribution rail adjoin, with that of the larger piston area opposite end wall of the storage space through the adjoining side wall of the distribution rail is formed. So that the assembly at this point as well as the seal is simplified, the high-pressure accumulator has one Collar that goes into a recess in the side wall Interposition of a seal engages.
- the distribution rail can preferably be made of aluminum consist. This gives it sufficient strength relatively light weight.
- the distribution rail can be prepared with an extruded profile and be longitudinal bores, so that only the cross holes for further processing with the associated seals and other connections are to be produced.
- Adjustment slides are introduced with which the river of the hydraulic fluid within the longitudinal or transverse bores an adjustable resistance can be opposed can, so that on the one hand the movement of the working piston set and on the other hand also bumps within of the pressure fluid can be reduced or damped.
- a housing 11 is attached, in which a hydraulic device for actuation the circuit breaker is arranged.
- the flange plate 10 has openings 16 (of which in Figure 2 only one opening is visible) through which one Drive linkage 17 passes through, which with the respective movable contact pieces of the individual circuit breaker poles connected is.
- the hydraulic device sits on the flange plate 10, which, as can be seen from Figure 3, in cross section in has substantially square distribution rail 18 the flange plate side side surface 19 each one Piston unit 20 and on its opposite Side surface 21, which is located on the flange side, in each case Switch valve 22 attached to each circuit breaker pole are. Since a circuit breaker a total of three Circuit breaker poles are also three working piston units and three switch valves 22a, 22b and 22c present, whereby, as can be seen more clearly from FIG is, the individual switching valves 22a, b and c, respectively an electromagnetic system 23, 24 for two switching circuits and a solenoid system 25 for a turn-on circuit assigned.
- the energy store On the side surface 26 in the area between the changeover valves 22b and 22c, said energy store is located 36, which is shown in more detail in FIG.
- the Storage elements 37 of the energy store are several Disc springs connected in series are.
- At the opposite of the distribution rail 18 There is a retaining washer at the end of the plate springs 37 38.
- the piston 40 is in a cylinder space 41 arranged, the space 41a to the left of the piston, ie the one with the smaller piston area, and the space 41b right of the piston 40, that is, the one with a larger piston area contain pressure fluid on both sides.
- the piston chamber 41 and that bore 42 which guides the piston rod 39 is accommodated in a cylinder block 43 which is on the distribution rail 18 is attached, the distribution rail even the piston chamber 41 on the larger piston area opposite side limited.
- the cylinder block 43 has a collar-like projection 44, which delimits the piston chamber 41 and into a Indentation 45 on the side surface 26 of the distribution rail 18 engages. That the collar or the collar-like projection 44 has an annular seal 46 on its outside, with which a seal is created is a matter of course.
- the longitudinal bore 34 which with the low pressure container connected is.
- a transverse bore runs out of space 41b 47 towards the longitudinal bore 35.
- Via additional cross bores (without reference numbers) in the distribution rail 18 and in the cylinder block 43 is the longitudinal bore 34 with the Room 41a connected, so that leaking oil on the piston 40 is discharged to the low pressure container.
- the seal between two components for example the seal between a bore 53 in a module 54 and a transverse bore 55 is made in the distribution rail a socket 56 which separates the joint 57 between the two Share connects or overlaps, being on both sides of the Parting line 57 in the bushing 56, ring seals 58, 59 introduced are.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Actuator (AREA)
- Chairs Characterized By Structure (AREA)
- Mechanically-Actuated Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Vehicle Body Suspensions (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
Die Erfindung betrifft eine Hydraulikeinrichtung gemäß dem Oberbegriff des Anspruches 1.The invention relates to a hydraulic device according to the preamble of claim 1.
Eine derartige Hydraulikeinrichtung wird insbesondere verwendet zur Betätigung der beweglichen Kontaktstücke eines Hochspannungsleistungsschalters, wobei unter Hochspannung auch der Bereich Mittelspannung verstanden wird. Ein derartiger Leistungsschalter kann als gasisolierter, insbesondere SF6-isolierter, als metallgekapselter Schalter oder als Freiluftschalter ausgebildet sein. Die Antriebe zur Betätigung jedes Leistungsschalters bzw. des beweglichen Kontaktstückes jeweils eines Pols oder mehrere Pole des Leistungsschalters besitzen einen Energiespeicher, der als Federspeicher ausgebildet sein kann, dessen Energie zur Betätigung des beweglichen Kontaktstückes freigegeben wird. Zu diesem Zweck ist der Energiespeicher in eine Hydraulikeinrichtung integriert, und das bzw. die beweglichen Kontaktstücke sind jeweils mit einem Arbeitskolben verbunden. Die hydraulische Energie wird beidseitig zu dem Arbeitskolben sowohl in den Raum mit der größeren Fläche als auch in den Raum mit der kleineren Fläche zugeführt, so daß dadurch der Kolben in einer Schaltstellung bewegt wird. Durch Betätigung eines geeigneten Umschaltventils wird der Raum, der durch die größere Kolbenfläche begrenzt ist, mit einem Niederdruckbehälter verbunden, wodurch der Kolben sich plötzlich verschieben kann und das bewegliche Kontaktstück in Ausschaltstellung verbringt.Such a hydraulic device is used in particular to actuate the movable contact pieces of a high-voltage circuit breaker, high voltage also being understood to mean the medium-voltage range. Such a circuit breaker can be designed as a gas-insulated, in particular SF 6 -insulated, as a metal-enclosed switch or as an outdoor switch. The drives for actuating each circuit breaker or the movable contact piece in each case one pole or several poles of the circuit breaker have an energy store which can be designed as a spring accumulator, the energy of which is released for actuating the movable contact piece. For this purpose, the energy store is integrated in a hydraulic device, and the movable contact (s) are each connected to a working piston. The hydraulic energy is supplied on both sides to the working piston both in the room with the larger area and in the room with the smaller area, so that the piston is moved in a switching position. By actuating a suitable changeover valve, the space, which is limited by the larger piston area, is connected to a low-pressure container, as a result of which the piston can suddenly move and move the movable contact piece into the switched-off position.
Eine solche Einrichtung ist aus der FR-A 2 685 541 bekannt geworden. Bei dieser Anordnung ist ein Block mit einem Ventil vorgesehen, die über ein Rohrleitungssystem Hochdruckfluid zum Hauptventil steuert, wobei zwischen dem Block und dem Hauptventil Rohrleitungen vorgesehen sind, die die Anordnung bezüglich Montage vergleichsweise kompliziert gestalten.Such a device is known from FR-A 2 685 541. With this arrangement a block with a valve is provided which is connected to a piping system High pressure fluid to the main valve controls, being between the block and the main valve Pipelines are provided, the arrangement with respect to assembly comparatively make it complicated.
Aufgabe der Erfindung ist es, eine Hydraulikeinrichtung der eingangs genannten Art zu schaffen, die gegenüber der bekannten Einrichtung erheblich vereinfacht ist.The object of the invention is to provide a hydraulic device of the type mentioned create, which is considerably simplified compared to the known device.
Diese Aufgabe wird erfindungsgemäß gelöst durch die Merkmale des Anspruches 1.This object is achieved according to the invention by the features of claim 1.
In besonders bevorzugter Weise ist die zentrale Verteileinrichtung als eine Verteilschiene ausgebildet, die einen Rechteckquerschnitt aufweist und langgestreckt ist; die Leitungen für unter Hochdruck und unter Niederdruck stehendes Hydraulikfluid sind durch zwei parallel verlaufende Längsbohrungen innerhalb der Verteilschiene gebildet.In a particularly preferred manner, the central distribution device is in the form of a distribution rail formed, which has a rectangular cross section and is elongated; the Lines for high pressure and low pressure hydraulic fluid are formed by two parallel longitudinal bores within the distribution rail.
Mit dieser Anordnung können zwischen dem Energiespeicher und den Arbeitskolben und den dazwischen befindlichen Komponenten der Hydraulikeinrichtung zu verlegende Rohrleitungen vermieden werden.With this arrangement you can between the energy storage and the working piston and the components of the hydraulic device located between them Pipelines can be avoided.
Die Verteilschiene hat einen weiteren Vorteil, daß sie gleichzeitig auch dazu verwendet werden kann, die einzelnen Komponenten zu haltern. Gemäß den Merkmalen des Anspruches 2 werden dann die Kolben-Zylinderanordnungen, d. h. die Arbeitskolben, auf einer ersten Seitenfläche, die Steuerventile zum Ansteuern der Kolben-Zylinderanordnungen auf der entgegengesetzten, zweiten Seitenfläche und der Hochdruckspeicher bzw. die Pumpe an einer senkrecht dazu verlaufenden dritten Seitenfläche der Verteilschiene befestigt; in die zugehörigen Längsbohrungen münden dann mit den einzelnen Komponenten verbundene und in die Verteilschiene eingebrachte Querbohrungen ein.The distribution rail has a further advantage that it is used at the same time be able to hold the individual components. According to the characteristics of the Claim 2 then the piston-cylinder assemblies, d. H. the working pistons, on a first side surface, the control valves for actuating the piston-cylinder arrangements on the opposite, second side surface and the high pressure accumulator or the pump on a third side surface of the Distribution rail attached; then open into the associated longitudinal holes with the cross holes connected to individual components and made in the distribution rail on.
Erfindungsgemäß also dient die Verteilschiene nicht nur zur Verteilung des Hydraulikfluids, sondern darüberhinaus auch zur Halterung der einzelnen Komponenten, so daß die einzelnen Komponenten zusammen mit der Verteilschiene eine vormontierbare Einheit bilden.According to the invention, the distributor rail is not only used to distribute the hydraulic fluid, but also to hold the individual components, so that the individual components together with the busbar a preassembled unit form.
Eine Vereinfachung der Anordnung der einzelnen Komponenten an der Verteilschiene ist den Merkmalen des Anspruches 3 zu entnehmen.A simplification of the arrangement of the individual components on the distribution rail can be seen from the features of claim 3.
Wenn die Hydraulikeinrichtung gemäß der Erfindung an einer metallgekapselten, gasisolierten Schaltanlage angeflanscht ist, dann befindet sich die Kolben-Zylinderanordnung zwischen der Verteilschiene und dem Flansch; die Steuerventile sind an der flanschabseitigen Seitenfläche der Verteilschiene befestigt.If the hydraulic device according to the invention on a metal-encapsulated, gas-insulated Switchgear is flange-mounted, then there is the piston-cylinder arrangement between the distribution rail and the flange; the control valves are on the Flange-side side surface of the distribution rail attached.
Eine weitere Vereinfachung der Erfindung kann dahingehen, daß die einzelnen Komponenten modulartig ausgebildet und an der Verteilschiene unter Zwischenfügung einer für alle Anschlüsse gleichen Abdichtung für die zu den Hochdruck- und Niederdruckleitungen führenden Verbindungsleitungen befestigt sind. Dadurch kann die Montage und die Lagerhaltung erheblich vereinfacht werden.A further simplification of the invention can be that the individual components modular design and on the distribution rail with the interposition of a The same seal for all connections to the high-pressure and low-pressure lines leading connecting lines are attached. This allows assembly and warehousing be simplified considerably.
Gemäß einer weiteren Ausführung kann der Speicherraum des Energie- oder Hochdruckspeichers unmittelbar an der Verteilschiene angrenzen, wobei die der größeren Kolbenfläche gegenüberliegende Endwand des Speicherraums durch die anschließende Seitenwand der Verteilschiene gebildet ist. Damit die Montage an dieser Stelle sowie die Dichtung vereinfacht wird, besitzt der Hochdruckspeicher einen Kragen, der in eine Vertiefung in der Seitenwand unter Zwischenfügung einer Dichtung eingreift.According to a further embodiment, the storage space of the Energy or high pressure storage directly on the distribution rail adjoin, with that of the larger piston area opposite end wall of the storage space through the adjoining side wall of the distribution rail is formed. So that the assembly at this point as well as the seal is simplified, the high-pressure accumulator has one Collar that goes into a recess in the side wall Interposition of a seal engages.
In bevorzugter Weise kann die Verteilschiene aus Aluminium bestehen. Dadurch besitzt sie bei ausreichender Festigkeit relativ geringes Gewicht.The distribution rail can preferably be made of aluminum consist. This gives it sufficient strength relatively light weight.
Die Verteilschiene kann ein Strangpreßprofil mit vorbereiteten und darin eingebrachten Längsbohrungen sein, so daß zur weiteren Bearbeitung lediglich die Querbohrungen mit den zugehörigen Dichtungen und sonstigen Anschlüssen herzustellen sind.The distribution rail can be prepared with an extruded profile and be longitudinal bores, so that only the cross holes for further processing with the associated seals and other connections are to be produced.
In die Längsbohrungen oder bestimmte Querbohrungen können Einstellschieber eingebracht werden, mit denen dem Fluß des Hydraulikfluids innerhalb der Längs- oder Querbohrungen ein einstellbarer Widerstand entgegengesetzt werden kann, so daß dadurch einerseits die Bewegung des Arbeitskolbens eingestellt und andererseits auch Stöße innerhalb des Druckfluids abgebaut oder gedämpft werden können.In the longitudinal holes or certain cross holes Adjustment slides are introduced with which the river of the hydraulic fluid within the longitudinal or transverse bores an adjustable resistance can be opposed can, so that on the one hand the movement of the working piston set and on the other hand also bumps within of the pressure fluid can be reduced or damped.
Außerdem kann das gleichzeitige Schließen der Kontakte des Hochspannungsleistungsschalters eingestellt werden. In addition, the simultaneous closing of the contacts of the high-voltage circuit breaker can be set.
Weitere vorteilhafte Ausgestaltungen und weitere Verbesserungen der Erfindung sind den weiteren Unteransprüchen zu entnehmen.Further advantageous refinements and further improvements the invention are the further subclaims refer to.
Anhand der Zeichnung, in der einige Ausführungsbeispiele der Erfindung dargestellt sind, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Using the drawing, in which some embodiments the invention are shown, the invention and further advantageous refinements and improvements the invention are explained and described in more detail.
Es zeigen:
- Figur 1
- eine Aufsicht auf die erfindungsgemäße hydraulische Einrichtung,
- Figur 2
- eine Schnittansicht II-II,
- Figur 3
- eine Schnittansicht durch die Verteilschiene gemäß Schnittlinie III-III der Figur 1,
- Figur 4
- eine Schnittansicht gemäß Schnittlinie IV-IV,
- Figur 5
- eine Einzelheit X der Figur 4 in vergrößerter Darstellung und
- Figur 6
- eine Schnittansicht im Bereich des Übergangs zwischen der Verteilschiene und einer Anbaukomponente zur Darstellung der Abdichtung.
- Figure 1
- a supervision of the hydraulic device according to the invention,
- Figure 2
- a sectional view II-II,
- Figure 3
- 2 shows a sectional view through the distribution rail according to section line III-III in FIG. 1,
- Figure 4
- 2 shows a sectional view according to section line IV-IV,
- Figure 5
- a detail X of Figure 4 in an enlarged view and
- Figure 6
- a sectional view in the area of the transition between the distribution rail and an add-on component to illustrate the seal.
Es sei nun Bezug genommen auf die Figuren 1 und 2.Reference is now made to FIGS. 1 and 2.
Auf einer Flanschplatte 10, die gegen einen offenen
Flansch (nicht dargestellt) einer metallgekapselten,
gasisolierten Schaltanlage im Bereich des Leistungsschalters
angeschraubt werden kann, ist ein Gehäuse 11 befestigt,
in dem eine hydraulische Einrichtung zur Betätigung
des Leistungsschalters angeordnet ist.On a
Die Flanschplatte 10 besitzt Öffnungen 16 (von denen in
Figur 2 nur eine Öffnung sichtbar ist), durch die je ein
Antriebsgestänge 17 hindurchgreift, welches mit den jeweiligen
beweglichen Kontaktstücken der einzelnen Leistungsschalterpole
verbunden ist.The
Auf der Flanschplatte 10 sitzt die Hydraulikeinrichtung,
die, wie aus Figur 3 ersichtlich, eine im Querschnitt im
wesentlichen quadratische Verteilschiene 18 aufweist, auf
deren flanschplattenseitigen Seitenfläche 19 jeweils eine
Arbeitskolbeneinheit 20 und auf deren entgegengesetzter
Seitenfläche 21, die flanschabseitig liegt, jeweils ein
Umschaltventil 22 für jeden Leistungsschalterpol befestigt
sind. Da ein Leistungsschalter insgesamt drei
Leistungsschalterpole aufweist, sind auch drei Arbeitskolbeneinheiten
und drei Umschaltventile 22a, 22b und 22c
vorhanden, wobei, wie aus Figur 3 deutlicher ersichtlich
ist, den einzelnen Umschaltventilen 22a, b und c jeweils
ein Elektromagnetsystem 23, 24 für zwei Ausschaltkreise
und ein Elektromagnetsystem 25 für einen Einschaltkreis
zugeordnet sind. An der links befindlichen, senkrecht zur
Flanschplatte 10 verlaufenden Seitenfläche 26 befindet
sich zwischen den beiden Umschaltventilen 22a und 22b
eine Motor-Pumpeneinheit mit einem Antriebsmotor 28 für
eine Pumpe 29, die nur schematisch dargestellt ist, und
eine Filtereinheit 30, die mit einem Motor-Pumpenblock 31
mit darin angeordneten Verbindungsbohrungen 32, 33 jeweils
mit einer Längsbohrung 34 bzw. 35 innerhalb der
Verteilschiene 18 verbunden sind. Dabei ist die Längsbohrung
34 mit einem Niederdruck-Sammeltank (nicht dargestellt)
und die Längsbohrung 35 mit einem Energiespeicher
(siehe weiter unten) verbunden, so daß die Pumpe aus einem
Niederdrucktank über die Verbindungsleitung bzw. Verbindungsbohrung
32 Hydraulikfluid ansaugt und über die
Verbindungsleitung 33 der Längsbohrung 35 Druckfluid zuführt.The hydraulic device sits on the
An der Seitenfläche 26 im Bereich zwischen den Umschaltventilen
22b und 22c befindet sich besagter Energiespeicher
36, der in der Figur 4 näher dargestellt ist. Die
Speicherelemente 37 des Energiespeichers sind mehrere
Tellerfedern, die hintereinander in Reihe geschaltet
sind. An dem der Verteilschiene 18 entgegengesetzt liegenden
Ende der Tellerfedern 37 befindet sich eine Haltescheibe
38. Der Kolben 40 ist in einem Zylinderraum 41
angeordnet, wobei der Raum 41a links des Kolbens, also
der mit der kleineren Kolbenfläche, und der Raum 41b
rechts des Kolbens 40, also der mit größerer Kolbenfläche
beidseitig Druckfluid enthalten. Der Kolbenraum 41 und
diejenige Bohrung 42, die die Kolbenstange 39 führt, ist
in einem Zylinderblock 43 aufgenommen, der an der Verteilschiene
18 befestigt ist, wobei die Verteilschiene
selbst den Kolbenraum 41 auf der der größeren Kolbenfläche
gegenüberliegenden Seite begrenzt. Zu diesem Zweck
besitzt der Zylinderblock 43 einen kragenartigen Vorsprung
44, der den Kolbenraum 41 umgrenzt und in eine
Vertiefung 45 auf der Seitenfläche 26 der Verteilschiene
18 eingreift. Daß der Kragen bzw. der kragenartige Vorsprung
44 auf seiner Außenseite eine Ringdichtung 46 aufweist,
mit der eine Abdichtung erzeugt wird, ist selbstverständlich.
Man erkennt in dem Teilausschnitt der Figur
5 die Längsbohrung 34, die mit dem Niederdruckbehälter
verbunden ist. Aus dem Raum 41b verläuft eine Querbohrung
47 hin zu der Längsbohrung 35. Über zusätzliche Querbohrungen
(ohne Bezugsziffern) in der Verteilschiene 18 und
in dem Zylinderblock 43 ist die Längsbohrung 34 mit dem
Raum 41a verbunden, so daß austretendes Lecköl am Kolben
40 zum Niederdruckbehälter abgeführt wird. On the
In der Figur 2 bzw. 3 ist ersichtlich, daß der Arbeitskolben
20 über ein Zwischenglied 48 mit einem Kniehebel
49 verbunden ist, welches auf einer Schaltwelle 50 gelagert
ist; mit dieser Schaltwelle ist dann das Gestänge 17
verbunden. Über ein weiteres Zwischenglied 51 ist der
Kniehebel mit einem Hilfsschalter 52 verbunden.In Figures 2 and 3 it can be seen that the working
Die Abdichtung zwischen zwei Komponenten (siehe Figur 6),
beispielsweise die Abdichtung zwischen einer Bohrung 53
in einem an die Verteilschiene 18 anbaubaren Modul 54 und
einer Querbohrung 55 in der Verteilschiene erfolgt durch
eine Buchse 56, die die Trennfuge 57 zwischen den beiden
Teilen verbindet bzw. übergreift, wobei beidseitig zu der
Trennfuge 57 in der Buchse 56 Ringdichtungen 58, 59 eingebracht
sind.The seal between two components (see Figure 6),
for example the seal between a
Die innere Verschaltung der Umschaltventile 22 mit den
Längsbohrungen 34 und 35 bzw. mit dem Kolbenraum 41b und
der Arbeitskolbeneinheit 20 ist an sich bekannt, so daß
hier nicht näher darauf eingegangen werden muß.The internal connection of the switching
Claims (12)
- Hydraulic device for operating at least one component which moves in a linear manner, especially the moving contact piece of a medium-voltage or high-voltage power circuit breaker, having in each case one piston-cylinder arrangement which is assigned to the at least one component, having a high-pressure reservoir from which a hydraulic fluid, at high pressure, can be supplied to the piston-cylinder arrangement, having a low-pressure reservoir for the hydraulic fluid, and having a pump which conveys hydraulic fluid from the low-pressure reservoir to the high-pressure reservoir characterized in that the individual components (22, 23, 24 ...) of the hydraulic device are connected to a central distribution device which comprises an elongated distribution rail (18) which preferably has a rectangular cross-section and in which at least one line (34, 35) in each case for hydraulic fluid at high pressure and at low pressure and in that the individual components are of modular design and are mounted on the distribution rail (18).
- Hydraulic device according to Claim 1, characterized in that the piston-cylinder arrangement (20) is mounted on a first side surface (19), control valves (22) for driving the piston-cylinder arrangement (20) are mounted on the opposite, second side surface (21), and the high-pressure reservoir (36 to 42) and the pump (28, 29) are mounted on a third side surface (26) of the distribution rail (18) running at right angles thereto, and are connected to the associated longitudinal holes (34, 35) via transverse holes (32, 33) which are incorporated in the distribution rail (18).
- Hydraulic device according to one of the preceding claims, characterized in that the piston-cylinder arrangement (20) and the associated control valves (23, 24) are each arranged in a plane which runs at right angles to the longitudinal extent of the distribution rail (18), and the high-pressure reservoir (36 to 42) and the pump (28, 29) are in each case arranged between two adjacent planes.
- Hydraulic device according to Claim 3, characterized in that said device is connected to a switching installation by means of a flange, and in that the piston-cylinder arrangement is mounted between the flange and the distribution rail (18), and the control valves (23, 24) are mounted on the opposite side of the distribution rail (18).
- Hydraulic device according to one of the preceding claims, characterized in that the components designed like modules are mounted on the distribution rail (18) with a seal (26), which is identical for all the connections, being interposed for the connecting lines which lead to the high-pressure and low-pressure lines.
- Hydraulic device according to one of Claims 2 to 5, characterized in that the reservoir space (41) of the high-pressure reservoir (36) is adjacent to the distribution rail (18), one end wall of the reservoir space (41) being formed by the adjacent side wall of the distribution rail (18).
- Hydraulic device according to Claim 6, characterized in that the high-pressure reservoir (36 to 42) has a collar (44) which engages in a depression (45) in the side wall, with a seal (46) being interposed.
- Hydraulic device according to one of Claims 2 to 6, characterized in that sleeves (56) are provided, for sealing, at the interface (separation point) between the modules and the distribution rail (18), which sleeves (56) bridge the separating surface (52) and have sealing elements (58, 59) on both sides of the separating surface (57).
- Hydraulic device according to Claim 8, characterized in that the sealing elements (58, 59) are in each case an O-ring seal and a supporting ring.
- Hydraulic device according to one of the preceding claims, characterized in that the distribution rail (18) is composed of aluminium.
- Hydraulic device according to one of the preceding claims, characterized in that the distribution rail (18) is an extruded profile having longitudinal holes prepared in advance.
- Hydraulic device according to one of the preceding claims, characterized in that adjusting slides can be inserted into the holes in order to adjust the hydraulic fluid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4340142 | 1993-11-25 | ||
| DE4340142A DE4340142C2 (en) | 1993-11-25 | 1993-11-25 | Hydraulic device for actuating at least one linearly movable component |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0655761A2 EP0655761A2 (en) | 1995-05-31 |
| EP0655761A3 EP0655761A3 (en) | 1997-05-02 |
| EP0655761B1 true EP0655761B1 (en) | 1999-07-28 |
Family
ID=6503393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94118333A Expired - Lifetime EP0655761B1 (en) | 1993-11-25 | 1994-11-22 | Hydraulic system for actuating at least one lineary moving element |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5584180A (en) |
| EP (1) | EP0655761B1 (en) |
| JP (1) | JPH07217603A (en) |
| KR (1) | KR950015443A (en) |
| CN (1) | CN1107998A (en) |
| AT (1) | ATE182716T1 (en) |
| DE (2) | DE4340142C2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19637050A1 (en) * | 1996-09-12 | 1998-03-19 | Abb Patent Gmbh | Hydraulic drive |
| CN100474472C (en) * | 2006-01-25 | 2009-04-01 | 西安西开高压电气股份有限公司 | High power hydraulic actuating mechanism |
| DE102007062291A1 (en) * | 2007-10-16 | 2009-04-23 | Abb Technology Ag | Hydraulic spring accumulator drive |
| DE102008032143A1 (en) * | 2008-07-08 | 2010-01-14 | Abb Technology Ag | Hydraulic spring accumulator drive |
| DE102008061238B4 (en) * | 2008-12-09 | 2010-10-28 | Abb Technology Ag | Device for a hydraulic drive for an electrical switchgear |
| DE102010054665B3 (en) * | 2010-12-15 | 2012-02-02 | Abb Technology Ag | Storage module for a hydraulic spring-loaded drive |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1037554B (en) * | 1956-03-10 | 1958-08-28 | Licentia Gmbh | Hydraulically operated electrical multiple switchgear |
| FR1423882A (en) * | 1964-11-24 | 1966-01-07 | Hydraulic control for electric circuit breaker | |
| FR2209997B1 (en) * | 1972-12-12 | 1976-01-30 | Merlin Gerin | |
| DE3613747A1 (en) * | 1986-04-23 | 1987-10-29 | Concordia Fluidtechnik Gmbh | 5/3 VALVE |
| US4748897A (en) * | 1986-09-05 | 1988-06-07 | Hoge Ned W | Subbase for a pneumatic control assembly for a pneumatic cylinder |
| CA1317529C (en) * | 1986-10-10 | 1993-05-11 | Albert J. Hoppenjans | Hydraulic system for operating switching or like devices |
| JPH01281626A (en) * | 1988-05-06 | 1989-11-13 | Meidensha Corp | Operation device for switching part |
| US5018431A (en) * | 1988-12-09 | 1991-05-28 | Quadrastat Corporation | Apparatus for positioning a work implement |
| EP0419810B1 (en) * | 1989-09-28 | 1993-09-22 | FAG Kugelfischer Georg Schäfer Aktiengesellschaft | Power unit |
| DE4000221A1 (en) * | 1990-01-05 | 1991-07-11 | Siemens Ag | METHOD FOR CONTROLLING AN ACTUATOR ADJUSTABLE BY A PROPORTIONAL VALVE |
| DE4011445A1 (en) * | 1990-04-09 | 1991-10-10 | Abb Patent Gmbh | HYDRAULIC DRIVE |
| JPH0487125A (en) * | 1990-07-27 | 1992-03-19 | Hitachi Ltd | Operating device for breaker |
| US5236057A (en) * | 1990-09-07 | 1993-08-17 | Nsk Ltd. | Rear wheel steering apparatus for vehicle |
| JPH04126321A (en) * | 1990-09-17 | 1992-04-27 | Hitachi Ltd | Switching device for underground substation |
| FR2685541B1 (en) * | 1991-12-23 | 1994-04-08 | Gec Alsthom Sa | CIRCUIT BREAKER CONTROL. |
| JPH05298969A (en) * | 1992-04-21 | 1993-11-12 | Fuji Electric Co Ltd | Main control valve for hydraulic operation device for circuit breaker |
-
1993
- 1993-11-25 DE DE4340142A patent/DE4340142C2/en not_active Expired - Fee Related
-
1994
- 1994-11-17 KR KR1019940030221A patent/KR950015443A/en not_active Application Discontinuation
- 1994-11-22 AT AT94118333T patent/ATE182716T1/en not_active IP Right Cessation
- 1994-11-22 EP EP94118333A patent/EP0655761B1/en not_active Expired - Lifetime
- 1994-11-22 DE DE59408541T patent/DE59408541D1/en not_active Expired - Lifetime
- 1994-11-23 US US08/344,488 patent/US5584180A/en not_active Expired - Fee Related
- 1994-11-24 CN CN94118817A patent/CN1107998A/en active Pending
- 1994-11-24 JP JP6289551A patent/JPH07217603A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE4340142C2 (en) | 1995-11-23 |
| EP0655761A3 (en) | 1997-05-02 |
| KR950015443A (en) | 1995-06-16 |
| DE4340142A1 (en) | 1995-06-01 |
| EP0655761A2 (en) | 1995-05-31 |
| CN1107998A (en) | 1995-09-06 |
| ATE182716T1 (en) | 1999-08-15 |
| US5584180A (en) | 1996-12-17 |
| JPH07217603A (en) | 1995-08-15 |
| DE59408541D1 (en) | 1999-09-02 |
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