EP0482362B1 - Federkraftspeicher für Lastumschalter von Stufenschaltern - Google Patents

Federkraftspeicher für Lastumschalter von Stufenschaltern Download PDF

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Publication number
EP0482362B1
EP0482362B1 EP91116094A EP91116094A EP0482362B1 EP 0482362 B1 EP0482362 B1 EP 0482362B1 EP 91116094 A EP91116094 A EP 91116094A EP 91116094 A EP91116094 A EP 91116094A EP 0482362 B1 EP0482362 B1 EP 0482362B1
Authority
EP
European Patent Office
Prior art keywords
spring
force storage
drive
partial
drive input
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
EP91116094A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0482362A2 (de
EP0482362A3 (en
Inventor
Rolf Dipl.-Ing. Lauterwald
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.)
Maschinenfabrik Reinhausen GmbH
Scheubeck GmbH and Co
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
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 Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP0482362A2 publication Critical patent/EP0482362A2/de
Publication of EP0482362A3 publication Critical patent/EP0482362A3/de
Application granted granted Critical
Publication of EP0482362B1 publication Critical patent/EP0482362B1/de
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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0027—Operating mechanisms

Definitions

  • the invention relates to a spring force accumulator for diverter switches of tap changers of tap transformers, which rotates a shaft in a sudden manner when it is triggered and thus also moves a switching element connected to this shaft in a sudden manner.
  • the springs are connected between the articulation points of the energy storage levers, each with a further fixed articulation point; the two articulation points are horizontally movable on a concentric path about the axis of the two energy storage levers, whereby the longitudinal axis of the springs at the articulation points can be deflected during tensioning.
  • the springs form a parallelogram when tensioning the energy accumulator, ie the relative rotation of one energy storage lever against the other, whereby a desired high initial rotational speed of the energy accumulator is to be achieved after the release.
  • This spring-loaded mechanism also features two double-armed clamping levers with the same axis, between the ends of which two opposing springs are clamped and, on the other hand, a winding and a spring crank with two crank ends each engage, the winding crank with a Geneva plate and the spring crank with which actuating the switching elements Shaft are coupled.
  • the winding crank is rotated, which takes one of the tension levers with its two crank ends, while the other of the two tension levers remains in its position, so that the two springs are tensioned, while remaining in a parallel position relative to one another.
  • this known spring force accumulator too, numerous components are required which result in a large overall height of the spring force accumulator.
  • the initial rotation speed after tripping is lower in this version.
  • the object of the invention is therefore to provide a spring force accumulator of the type mentioned at the outset which, with a low overall height and with fewer components, permits the highest possible initial speed after it has been triggered.
  • a spring force accumulator has a central vertical axis, on which a drive pulley, two force accumulator levers, a spring lever and a driven pulley are each mounted coaxially, independently of one another.
  • the drive pulley consists of two partial drive pulleys arranged in different horizontal planes, which preferably face each other in an identical congruent manner arranged vertically facing each other.
  • the upper part of the drive pulley has a specially designed release curve divided into two horizontal planes.
  • the two energy storage levers arranged one above the other between the partial drive disks of the drive disk each have a pivot point at one free end, between which a spring is articulated, which is in the middle in a manner known per se by a spring lever, which in turn is arranged coaxially between the energy storage levers a concentric path around the axis.
  • the energy storage levers also each have a contact surface, which interact with the drive parts of the drive pulley. At their other free end, the energy storage levers have output surfaces which interact with an output part which is connected to the output disc.
  • the input and output parts are designed as rollers; if these are designed to be elastic, shock absorption is additionally achieved and bruising after release is avoided.
  • the drive pulley When the spring force accumulator is actuated, the drive pulley is first rotated; a drive part arranged thereon engages on the contact surface of an energy storage lever and rotates it about the common axis of rotation of the spring energy accumulator, while the other energy storage lever remains in its position under the action of the latched output part, which blocks it. Due to the relative change in position of the two energy storage levers, the spring arranged between them is tensioned, the spring being additionally deflected laterally by the spring lever. Shortly before reaching the end position, the corresponding two-part pawl is actuated by the corresponding contact surface of the drive pulley, which pawl thus also disengages from the locking curve of the driven pulley. The second, previously blocked energy storage lever can thus follow the rotational movement of the first energy storage lever; the spring relaxes. The output disk is tracked by this subsequent energy storage lever via the output part which engages with it on an output surface.
  • the release curve of the drive pulley or the locking curve of the driven pulley in turn lead to a latching of the driven part.
  • the tensioning of the spring energy store can be repeated.
  • the process is repeated with the same direction of rotation; in the opposite direction of rotation of the drive pulley, the other drive part also causes the rotation of the other energy storage lever; the movement process accordingly takes place in the opposite order.
  • the invention makes it possible to build the entire spring energy store compactly and consisting of a few parts.
  • the spring force accumulator according to the invention is characterized by a high initial speed after the release.
  • a drive disk 3 On the vertical axis 9 of the spring energy accumulator are a drive disk 3, two energy storage levers 7; 8, a spring lever 14 and an output disk 17 are rotatably supported independently of one another.
  • the drive pulley 3 is driven by the drive 1 via a toothed belt 2, it consists of a lower drive pulley 3a and an upper drive pulley 3b rigidly connected to it.
  • a drive part 4a designed as an elastic roller
  • the upper drive pulley 3b facing downwards, there is a vertically congruent another identical drive part 4b, also designed as an elastic roller.
  • the upper part drive pulley 3b has a trigger curve 6 on its circumference, horizontally divided into the lower partial trigger curve 6a and the upper partial trigger curve 6b.
  • This energy storage lever 7; 8 are arranged independently of one another and rotatable about the axis 9 by the other components.
  • This energy storage lever 7; 8 each have a pivot point 10; 11, between which a spring 12 is arranged, approximately in the middle with a pivot point 15 of a one-armed spring lever 14, which is also rotatable in the axis 9, between the two energy storage levers 7; 8, is stored.
  • a driven pulley 17 is also rotatably arranged above the upper driven pulley 3b, which is firmly connected to a downwardly directed driven part 18, which is also designed as an elastic roller.
  • the output part 18 extends into the horizontal plane of the energy storage lever 7; 8 and acts on the driven surfaces 26a; 26b.
  • the output pulley 17 is provided on its circumference with a locking curve 25 which - analogously to the release curve 6 on the upper partial drive disc 3b - is horizontally divided into a lower partial locking curve 25a and an upper partial locking curve 25b.
  • On the trigger curves 6a; 6b and the locking curves 25a; 25b act in pivot points 23; 24 separately stored pawl pairs 21; 22.
  • Each is Pair of jacks 21; 22 in two partial pawls 21a; 21b and 22a; 22b divided to realize a lock in both directions of rotation.
  • the drive pulley 3 rotates in the direction of the arrow.
  • the drive part 4a engages in the contact surface 5a of the lower energy storage lever 7 and carries it along.
  • the upper energy storage lever 8 is blocked by the driven part 18, which has engaged in its driven surface 26b, and cannot follow the movement.
  • the driven pulley 17 Shortly before reaching the new end position, as shown in FIG. 2c, the driven pulley 17 is latched by the pair of pawls 22, which act on the upper partial locking curve 25b. After each 90 ° movement, the driven pulley is latched alternately by one of the latch pairs 21 or 22.
  • Fig. 3 shows in detail the interaction of the pawls 21, controlled by the lower partial release curve 6a, with the lower locking curve 25a of the driven pulley 17 or the pawls 22, controlled by the upper partial release curve 6b, with the upper locking curve 25b of the driven pulley.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Push-Button Switches (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Transmission Devices (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Switches With Compound Operations (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP91116094A 1990-10-26 1991-09-21 Federkraftspeicher für Lastumschalter von Stufenschaltern Expired - Lifetime EP0482362B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4034126 1990-10-26
DE4034126A DE4034126C1 (enrdf_load_stackoverflow) 1990-10-26 1990-10-26

Publications (3)

Publication Number Publication Date
EP0482362A2 EP0482362A2 (de) 1992-04-29
EP0482362A3 EP0482362A3 (en) 1992-10-28
EP0482362B1 true EP0482362B1 (de) 1995-01-18

Family

ID=6417130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116094A Expired - Lifetime EP0482362B1 (de) 1990-10-26 1991-09-21 Federkraftspeicher für Lastumschalter von Stufenschaltern

Country Status (9)

Country Link
US (1) US5195632A (enrdf_load_stackoverflow)
EP (1) EP0482362B1 (enrdf_load_stackoverflow)
JP (1) JPH04282517A (enrdf_load_stackoverflow)
AT (1) ATE117458T1 (enrdf_load_stackoverflow)
BG (1) BG60128B2 (enrdf_load_stackoverflow)
DE (2) DE4034126C1 (enrdf_load_stackoverflow)
ES (1) ES2066307T3 (enrdf_load_stackoverflow)
HU (1) HUT59255A (enrdf_load_stackoverflow)
RO (1) RO109133B1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4141142C1 (enrdf_load_stackoverflow) * 1991-12-13 1993-04-08 Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De
US7566840B2 (en) * 2007-10-04 2009-07-28 General Electric Company Contact arm mechanism for circuit breaker
DE102015103928B4 (de) * 2015-03-17 2021-11-04 Maschinenfabrik Reinhausen Gmbh Energiespeicher für einen Laststufenschalter sowie Laststufenschalter mit Energiespeicher
CN105513843B (zh) * 2016-01-08 2018-01-05 常熟开关制造有限公司(原常熟开关厂） 一种操作机构

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846621A (en) * 1956-09-19 1958-08-05 Gen Electric Closing mechanism for an electric circuit breaker
US3183332A (en) * 1962-08-09 1965-05-11 Westinghouse Electric Corp Circuit breaker closing mechanisms
DE2250260C3 (de) * 1972-10-13 1975-10-23 Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg Kraftspeicherantrieb für Lastumschalter und Lastwähler
US3848102A (en) * 1973-07-30 1974-11-12 Gen Electric Electric circuit breaker with auxiliary trip mechanism
DE2806282C2 (de) * 1978-02-15 1980-04-10 Maschinenfabrik Reinhausen Gebrueder Scheubeck Gmbh & Co Kg, 8400 Regensburg Lastumschalter für Stufenschalter von Stufentransformatoren
DE3533179A1 (de) * 1985-09-13 1987-03-19 Siemens Ag Antriebsvorrichtung fuer einen leistungsschalter mit einem klinkenrad
DE3626526A1 (de) * 1986-08-05 1988-02-11 Concordia Sprecher Schalt Federspeicher-antrieb fuer elektrische schaltgeraete
US4761524A (en) * 1987-05-26 1988-08-02 Electrical Equipment, Inc. Switch operating mechanism
DE3938207A1 (de) * 1989-11-17 1991-05-23 Reinhausen Maschf Scheubeck Kraftspeicherantrieb fuer lastumschalter von stufenschaltern in stufentransformatoren

Also Published As

Publication number Publication date
RO109133B1 (ro) 1994-11-30
DE59104314D1 (de) 1995-03-02
HUT59255A (en) 1992-04-28
EP0482362A2 (de) 1992-04-29
ATE117458T1 (de) 1995-02-15
HU913328D0 (en) 1992-01-28
US5195632A (en) 1993-03-23
BG60128B2 (bg) 1993-10-29
DE4034126C1 (enrdf_load_stackoverflow) 1992-03-05
JPH04282517A (ja) 1992-10-07
ES2066307T3 (es) 1995-03-01
EP0482362A3 (en) 1992-10-28

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