WO2013174567A1 - Accumulateur de force pour commutateur à gradins - Google Patents

Accumulateur de force pour commutateur à gradins Download PDF

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Publication number
WO2013174567A1
WO2013174567A1 PCT/EP2013/057274 EP2013057274W WO2013174567A1 WO 2013174567 A1 WO2013174567 A1 WO 2013174567A1 EP 2013057274 W EP2013057274 W EP 2013057274W WO 2013174567 A1 WO2013174567 A1 WO 2013174567A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
crank
pawl
output element
axis
Prior art date
Application number
PCT/EP2013/057274
Other languages
German (de)
English (en)
Inventor
Silke Wrede
Original Assignee
Maschinenfabrik Reinhausen Gmbh
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 filed Critical Maschinenfabrik Reinhausen Gmbh
Publication of WO2013174567A1 publication Critical patent/WO2013174567A1/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
    • H01H3/3052—Linear spring motors
    • 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 present invention relates to a force accumulator for an on-load tap changer.
  • the energy accumulator has a first gear arranged on a rotatable drive shaft, which drives a crank via at least one further toothed wheel.
  • the crank is mechanically coupled to a spring system so that the spring system can be tensioned.
  • a mechanical connection can be triggered after tensioning the spring system and pivots an output element abruptly.
  • On-load tap-changers of the type mentioned above are well-known and commonly used in the prior art. They are used for uninterrupted switching between different winding taps of tapped transformers. Since this changeover usually takes place abruptly, on-load tap-changers generally have a force store.
  • the known energy storage devices consist essentially of an elevator carriage and a jump carriage, between which springs are arranged as energy storage.
  • guide rods are provided on which the elevator carriage and the jump carriage are mounted longitudinally movable independently. At the same time, the guide rods form the guide for the springs, such that in each case one spring encloses one guide rod in each case.
  • the elevator carriage is moved linearly relative to the jump carriage by means of an eccentric connected to the drive shaft, whereby the springs disposed therebetween are tensioned. If the elevator carriage has reached its end position, the locking of the jump carriage is released.
  • energy accumulators are already known which convert a continuous rotational movement of a drive shaft into a sudden, fast rotational movement of an output shaft, so that no sliding friction occurs any more and the resistance is low. This is for example in the German patent DE 10 2006 008 338 B3,
  • Chinese Utility Model CN 201845670 U discloses a force accumulator for an on-load tap changer according to the preamble of present claim 1, wherein here many individual components are arranged between and mounted on an upper and a lower mounting plate.
  • a disadvantage of this prior art is that the energy storage device is constructed of many individual components, which on the one hand complicate the construction considerably and on the other hand take up a large space on an on-load tap-changer. Due to the many components is an exchange of components in a mechanical disturbance very laborious and expensive.
  • the invention has for its object to provide a space-saving and simple power storage for an on-load tap-changer, which allows low manufacturing and maintenance costs and low energy losses or energy consumption.
  • the force accumulator according to the invention for an on-load tap changer has a first toothed wheel arranged on a rotatable drive shaft which drives a crank via at least one further toothed wheel.
  • the power storage is driven centrally by the drive shaft at each switching operation.
  • an eccentric drive is also conceivable instead of a centric drive through the drive shaft.
  • the rotatable drive shaft which is also the drive of the selector, is driven directly by a stepper motor.
  • the drive shaft can be rotated by 180 degrees in each switching step, so that the drive shaft arranged first gear is also driven for this switching step. Since it is well known that gears transmit a positive and slip-free power transmission with changing direction of rotation, in a preferred embodiment, between the first gear and the gear that drives the crank, another gear arranged so that the crank the same direction of rotation as the drive shaft has.
  • the crank is mechanically coupled to a spring system, so that the spring system can be tensioned or compressed.
  • a mechanical connection can be triggered after tensioning the spring system and pivots an output element abruptly.
  • the spring system has a first spring and a second spring.
  • a hinge pin mechanically couples the spring system to the output member, with the first and second springs disposed on either side of the hinge pin.
  • the first and the second spring are arranged on a spring axis.
  • the spring axis preferably has a spring stop on both sides, so that the spring travel of both springs on the spring axis is limited on the one hand by the hinge pin and on the other by a respective spring stop.
  • a spring tube surrounds the spring axis.
  • the spring tube has a recess through which the hinge pin is mechanically coupled and guided with the output element.
  • the spring axis has a slot, for example, a bore in which the hinge pin is displaceable along an axis of the spring axis depending on the angle of rotation of the crank, so that alternately the first spring or the second spring can be tensioned.
  • the mechanical connection comprises a first latch lever and a second latch lever, wherein the first latch lever with a first cam of the crank, the second latch lever with a second cam of the crank and both latching levers are mechanically coupled to the output member.
  • the two pawl levers each have at least one first driver, which mechanically couple the pawl lever with the respective cam.
  • the two pawl levers each have a second driver which mechanically couple the pawl lever with the output member.
  • the first and / or second drivers of the two latch levers are designed as latch rollers.
  • the output element preferably has in each case a latch groove, via which the respective second driver of the first and second latch lever can be mechanically coupled to the output element.
  • the mechanical connection is designed so triggered that depending on the angle of rotation of the crank, the first or the second cam of the first or second latch lever and thus the first or second latch lever from
  • Output element triggers. Ie. the first or second cam actuates one ratchet lever alternately.
  • the first or second spring is through the spring axis
  • each ratchet lever has a pawl spring, so that the two ratchet levers are drivably connected to a pawl spring about a pawl rotational axis.
  • the second carrier of the two pawl lever can be pressed in the direction of the output element, while the driven element so far jumped by the relaxation of the first or second spring until the first or second latch lever is latched to the output element.
  • the output element is fixed by a latching of a first or second pawl lever with the output element, thereby depending on the angle of rotation of the crank, the first or second spring is tensioned by the spring axis.
  • a damping by one of the two springs is ensured by the arrangement of the embodiments described above in addition to a voltage.
  • the damping function also takes over the first spring, namely, when a relaxation of the second tensioned springs, the first spring can decay quickly the vibrations of the sprung masses of the second spring.
  • An advantage of the force accumulator according to the invention for an on-load tap-changer is that a space-saving and simple energy accumulator is created due to the entire structure and the components installed in the energy accumulator. Also brings the Energy storage by the arrangement of the two springs on the spring axis, wherein one of the two springs a tensioned and the other spring takes a damping function, a further advantage with it, namely that no in the art well-known and common large damper longer needed , Also, the force accumulator according to the invention is low in its manufacturing and maintenance costs due to the generally poorly installed components.
  • a further advantage of the force accumulator according to the invention is that low energy losses due to friction arise through the use of roller bearings, as already described above for the output element.
  • FIG. 1 is a schematic perspective view of a preferred embodiment of the force accumulator according to the invention for an on-load tap-changer
  • Fig. 2 is a schematic perspective view of the spring system of Figure 1;
  • Fig. 3 is a schematic perspective view of the force accumulator according to the invention according to FIG. 1, wherein here the mechanical connection is shown detached from the output element.
  • FIG. 1 shows a schematic perspective view of a preferred embodiment of the force accumulator 1 according to the invention for an on-load tap-changer.
  • the energy storage device 1 here has a arranged on a rotatable drive shaft 1 1 first gear 5, which drives a crank 13 via a third gear 9. Between the first gear 5 and the third gear 9, a second gear 7 is arranged, so that a rotational angle ⁇ 2 of the crank 13 is an identical rotational angle ⁇ ⁇ as that of the drive shaft 11.
  • the force accumulator 1 according to the invention may also provide more or less than three gears 5, 7, 9.
  • crank 13 mechanically coupled to a spring system 15
  • the spring system 15 via the crank 13 is tensioned.
  • a mechanical connection 3 can be triggered after tensioning the spring system 15 and pivots an output element 29 abruptly.
  • the output element 29 is preferably a rocker with recessed bearings (not visible), so that low energy losses caused by friction. It should be noted that other embodiments may also provide other machine elements as the output element 29.
  • the spring system 15 has a first spring 19 and a second spring 21.
  • a hinge pin 27 mechanically couples the spring system 15 to the output element 29, wherein the first and the second spring 19, 21 are arranged on both sides of the hinge pin 27.
  • Figure 2 shows a schematic perspective view of the spring system 15 of FIG. 1. As shown here, the two springs 19, 21 (see Fig. 1) and on a spring axis 17 are arranged.
  • the spring axis 17 In order to limit the spring travel of the two springs 19, 21 reliable, the spring axis 17 on both sides of a spring stop 23, so that the spring travel of the two springs 19, 21 between the hinge pin 27 and the respective spring stop 23 amounts. Further, a spring tube 25 (see also Fig. 1) is provided, that the spring axis 17 encloses.
  • the spring tube 25 of the spring system 15 has a recess 31 through which the hinge pin 27 engages and is mechanically coupled and guided with the output element 29.
  • the spring axis 17 has a slot 18 in which the hinge pin 27 of FIG. 1 along an axis A of the spring axis 17 depending on the rotation angle ⁇ 2 of the crank 13 is displaceable, such that the first spring 19 or the second spring 21 tensioned or is compressible.
  • the mechanical connection 3 generally has a first latch lever 39 and a second pawl lever 41, wherein the first pawl lever 39 with a first cam 37 of the crank 13, the second pawl lever 41 with a second cam 38 of the crank 13 is mechanically coupled. Also both ratchet levers 39, 41 are mechanically coupled to the output element 29.
  • both pawl levers 39, 41 each have at least one first driver 43 (see in this regard FIG. 3), which mechanically couple the pawl levers 39, 41 with the respective cam plate 37, 38.
  • the two pawl levers 39, 41 preferably each have a second driver 45 which mechanically couple the pawl levers 39, 41 with the respective output element 29.
  • FIG. 3 shows a schematic perspective view of the force accumulator 1 according to the invention according to FIG. 1, in which case the mechanical connection 3 is shown detached from the output element 29.
  • the mechanical connection 3 is designed to be triggered such that, depending on the angle of rotation ⁇ 2 of the crank 13, the first or the second cam 37, 38 of the first or second latch lever 39, 41 and thus the first or second latch lever 39, 41 from Output element 29 releases.
  • crank 13 is rotated such that the first cam 37 of the first latch lever 39 and thus the first latch lever 39 from
  • both pawl levers 39, 41 advantageously have a pawl 48 down.
  • the pawl springs 48 are arranged such that the two pawl levers 39, 41 can be driven with the respective pawl spring 48 about a pawl turning tab 49 and the second lugs 45 of the two pawl levers 39, 41 are pressed in the direction of the output member 29.
  • the output element 29 is pivoted so far by the relaxation of the first or second spring 19, 21 so far, until the first or second latch lever 39, 41 is latched to the output element 29.

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  • Transmission Devices (AREA)

Abstract

L'invention concerne un accumulateur de force destiné à un commutateur à gradins. L'accumulateur de force comporte une première roue dentée, disposée sur un arbre d'entraînement, qui entraîne une manivelle par l'intermédiaire d'au moins une autre roue dentée. La manivelle est couplée mécaniquement à un système de ressorts de façon à pouvoir bander ledit système. Une liaison mécanique, déclenchable après que le système de ressorts a été bandé, fait pivoter brusquement un élément actionné. Le système de ressorts comprend un premier et un second ressort. Un axe d'articulation relie mécaniquement le système de ressorts à l'élément actionné, les premier et second axes d'articulation étant disposés de part et d'autre dudit axe d'articulation.
PCT/EP2013/057274 2012-05-22 2013-04-08 Accumulateur de force pour commutateur à gradins WO2013174567A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012104379A DE102012104379A1 (de) 2012-05-22 2012-05-22 Kraftspeicher für einen Laststufenschalter
DE102012104379.5 2012-05-22

Publications (1)

Publication Number Publication Date
WO2013174567A1 true WO2013174567A1 (fr) 2013-11-28

Family

ID=48050710

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/057274 WO2013174567A1 (fr) 2012-05-22 2013-04-08 Accumulateur de force pour commutateur à gradins

Country Status (2)

Country Link
DE (1) DE102012104379A1 (fr)
WO (1) WO2013174567A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110783098A (zh) * 2019-11-12 2020-02-11 浙江全瑞本科技股份有限公司 一种变压器的防松弛电磁线圈缠绕装置
CN111816521A (zh) * 2020-09-01 2020-10-23 王一霖 一种断路器储能机构
EP3761333A1 (fr) * 2019-07-01 2021-01-06 ABB Power Grids Switzerland AG Agencement d'entraînement pour un changeur de prise
CN116490950A (zh) * 2020-10-26 2023-07-25 日立能源瑞士股份公司 控制电力切换开关所用的真空灭弧室的系统、电力切换开关和有载分接开关

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE850191C (de) * 1950-05-26 1952-09-22 Siemens Ag Federkraftspeicher fuer Umschalter, insbesondere Lastschalter von Stufenregeleinrichtungen
DE1956369A1 (de) 1969-11-08 1971-05-19 Reinhausen Maschf Scheubeck Kraftspeicher fuer Lastumschalter von Stufenschaltern fuer Regeltransformatoren
US4162385A (en) * 1976-09-30 1979-07-24 Westinghouse Electric Corp. Dual spring circuit interrupter apparatus
DE2806282C2 (de) 1978-02-15 1980-04-10 Maschinenfabrik Reinhausen Gebrueder Scheubeck Gmbh & Co Kg, 8400 Regensburg Lastumschalter für Stufenschalter von Stufentransformatoren
US5512869A (en) * 1993-12-27 1996-04-30 Gec Alsthom T & D Sa Linear control apparatus for a circuit-breaker
US20040262141A1 (en) * 2002-02-19 2004-12-30 Felix Bachofen Spring-driven mechanism for rectilinear displacement circuit breaker
DE102006008338B3 (de) 2006-02-23 2007-02-15 Maschinenfabrik Reinhausen Gmbh Laststufenschalter mit Kraftspeicher
DE102009034627B3 (de) 2009-07-24 2010-09-09 Maschinenfabrik Reinhausen Gmbh Laststufenschalter mit Kraftspeicher
DE102010046280B3 (de) 2010-09-22 2011-11-10 Maschinenfabrik Reinhausen Gmbh Kraftspeicher

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1008744A (en) * 1963-05-25 1965-11-03 Naz Delle Officine Di Saviglia A diverter switch for a transformer tap changer
JPH0821507B2 (ja) * 1988-08-26 1996-03-04 愛知電機株式会社 負荷時タップ切換装置の蓄勢機構
CN201845670U (zh) 2010-07-27 2011-05-25 上海华明电力设备制造有限公司 曲柄摇杆式快速机构

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE850191C (de) * 1950-05-26 1952-09-22 Siemens Ag Federkraftspeicher fuer Umschalter, insbesondere Lastschalter von Stufenregeleinrichtungen
DE1956369A1 (de) 1969-11-08 1971-05-19 Reinhausen Maschf Scheubeck Kraftspeicher fuer Lastumschalter von Stufenschaltern fuer Regeltransformatoren
US4162385A (en) * 1976-09-30 1979-07-24 Westinghouse Electric Corp. Dual spring circuit interrupter apparatus
DE2806282C2 (de) 1978-02-15 1980-04-10 Maschinenfabrik Reinhausen Gebrueder Scheubeck Gmbh & Co Kg, 8400 Regensburg Lastumschalter für Stufenschalter von Stufentransformatoren
US5512869A (en) * 1993-12-27 1996-04-30 Gec Alsthom T & D Sa Linear control apparatus for a circuit-breaker
US20040262141A1 (en) * 2002-02-19 2004-12-30 Felix Bachofen Spring-driven mechanism for rectilinear displacement circuit breaker
DE102006008338B3 (de) 2006-02-23 2007-02-15 Maschinenfabrik Reinhausen Gmbh Laststufenschalter mit Kraftspeicher
DE102009034627B3 (de) 2009-07-24 2010-09-09 Maschinenfabrik Reinhausen Gmbh Laststufenschalter mit Kraftspeicher
DE102010046280B3 (de) 2010-09-22 2011-11-10 Maschinenfabrik Reinhausen Gmbh Kraftspeicher

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3761333A1 (fr) * 2019-07-01 2021-01-06 ABB Power Grids Switzerland AG Agencement d'entraînement pour un changeur de prise
WO2021001188A1 (fr) * 2019-07-01 2021-01-07 Abb Power Grids Switzerland Ag Agencement d'entraînement pour changeur de prises
CN114072890A (zh) * 2019-07-01 2022-02-18 日立能源瑞士股份公司 用于抽头变换器的驱动装置
CN114072890B (zh) * 2019-07-01 2024-02-13 日立能源有限公司 用于抽头变换器的驱动装置
US11984288B2 (en) 2019-07-01 2024-05-14 Hitachi Energy Ltd Drive arrangement for a tap changer
CN110783098A (zh) * 2019-11-12 2020-02-11 浙江全瑞本科技股份有限公司 一种变压器的防松弛电磁线圈缠绕装置
CN111816521A (zh) * 2020-09-01 2020-10-23 王一霖 一种断路器储能机构
CN116490950A (zh) * 2020-10-26 2023-07-25 日立能源瑞士股份公司 控制电力切换开关所用的真空灭弧室的系统、电力切换开关和有载分接开关
CN116490950B (zh) * 2020-10-26 2024-03-01 日立能源有限公司 控制电力切换开关所用的真空灭弧室的系统、电力切换开关和有载分接开关
US11942293B2 (en) 2020-10-26 2024-03-26 Hitachi Energy Ltd System for controlling a vacuum interrupter for a power diverter switch, a power diverter switch and an on-load tap changer

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