EP0755564B1 - Einrichtung zum spannen der einschaltfeder von antriebseinrichtungen für elektrische leistungsschalter, insbesondere vakuumleistungsschalter - Google Patents

Einrichtung zum spannen der einschaltfeder von antriebseinrichtungen für elektrische leistungsschalter, insbesondere vakuumleistungsschalter Download PDF

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Publication number
EP0755564B1
EP0755564B1 EP95915184A EP95915184A EP0755564B1 EP 0755564 B1 EP0755564 B1 EP 0755564B1 EP 95915184 A EP95915184 A EP 95915184A EP 95915184 A EP95915184 A EP 95915184A EP 0755564 B1 EP0755564 B1 EP 0755564B1
Authority
EP
European Patent Office
Prior art keywords
shaft
spring
spur gear
closing
freewheeling
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
EP95915184A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0755564A1 (de
Inventor
Dietmar Mücksch
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.)
Danfoss Power Solutions II BV
Original Assignee
Holec Holland NV
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
Priority claimed from DE19944413191 external-priority patent/DE4413191C1/de
Priority claimed from DE1995103679 external-priority patent/DE19503679C1/de
Application filed by Holec Holland NV filed Critical Holec Holland NV
Priority to SI9530111T priority Critical patent/SI0755564T1/xx
Publication of EP0755564A1 publication Critical patent/EP0755564A1/de
Application granted granted Critical
Publication of EP0755564B1 publication Critical patent/EP0755564B1/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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/227—Interlocked hand- and power-operating mechanisms
    • 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
    • H01H3/3005—Charging means
    • H01H3/3021—Charging means using unidirectional coupling
    • 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
    • H01H2003/3084—Kinetic energy of moving parts recuperated by transformation into potential energy in closing or opening spring to be used in next operation
    • 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
    • H01H2003/3094—Power arrangements internal to the switch for operating the driving mechanism using spring motor allowing an opening - closing - opening [OCO] sequence
    • 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
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements

Definitions

  • the invention relates to a device for tensioning the closing spring of drive devices for electrical circuit breakers, especially vacuum circuit breakers where the formed as a tension spring with the on the Starting shaft applied eccentric is connected and both by an electric motor and by a manual wind shaft with the interposition of a spur gear is exciting, with its last spur gear also on the Einschaltwelle is arranged, which is also the jack for release a switch-on process by the switch-on shaft and with the cam in operative connection with the cam wearing.
  • the closing spring with an open an eccentric shaft in connection, so that upon release also arranged on the switch-on shaft Jack one that is still provided on the switch-on shaft Cam when rotating by about 180 °, conditional through the action of the switch-on spring designed as a tension spring, those in operative connection with the cam Pushes the switch lever into a position that corresponds to the switch-on position corresponds.
  • the preparation of the switch-on spring designed as a tension spring for the next switch-on process can be by applying a control voltage to a electric motor with the interposition of a gearbox that works with a push rod, a ratchet disc is rotated so that the eccentric on this ratchet disc attached closing spring is tensioned.
  • a transmission is also for actuating the movable switch contact in High-voltage switchgear provided according to DD 296 378 A5.
  • the invention has for its object a device for Tensioning the closing spring of drive devices for electrical Circuit breakers, especially vacuum circuit breakers, with the switch-on spring designed as a tension spring the eccentric mounted on the switch-on shaft stands and both by an electric motor and by a manual winding shaft with the interposition of a spur gear is tensionable, with its last spur gear also is arranged on the switch-on shaft, which is also the Pawl to release a switch-on process by the switch-on shaft as well as in operative connection with the switch lever standing cam, to create the spur gear works without idling and turning back the Eccentric prevented by the closing spring after switching on or limited and a clamping of the switch on the pawl connected to the switch-on shaft preparing the circuit breaker for the next one Switching on is avoided.
  • this is achieved in that the last Spur gear of the spur gear via a freewheel bearing on the Einschaltwelle is arranged such that at the start of tensioning the closing spring of the eccentric and thus the closing shaft from a position in which they are in a position in the direction of rotation of the eccentric upwards behind the lower one Dead center of the switch-on shaft lies directly through the last spur gear can be taken while in the phase of switching on when the switch-on shaft rotates above its lower one Dead center the last spur gear through the freewheel bearing as well as through the operative connection with the other spur gears of the Helical gear is locked in position.
  • Both the freewheel and the two support bearings of the Freewheel bearings are preferably needle bearings, each also other bearings can be used without the function of Restrict free-wheel bearing.
  • the inner ring of the Freewheel of the freewheel bearing through the outer peripheral surface the switch-on shaft and the diameter of the needles of the freewheel is smaller than the distance between the outer peripheral surface the switch-on shaft and the inner circumference of the Outer ring of the freewheel, and they are evenly distributed on inner circumference of the outer ring arranged sawtooth-shaped surfaces, such that its greatest distance from the inner circumference of the Outer ring always on the opposite in the direction of rotation Side of the sawtooth-shaped surfaces is provided.
  • the needles of Freewheel of the freewheel bearing when the closing spring is tensioned act against the sawtooth-shaped surfaces with a slight slope, under the force of spring elements, such that they on the sawtooth-shaped surfaces of the outer ring of the freewheel, that is in the clamping direction, can be pressed so that it is ensured that immediately when actuating the multi-stage spur gear by an electric motor or by a manual wind shaft through the last gear that sits on the engagement shaft that Starting shaft and thus also the one arranged on the starting shaft Eccentric is taken, so that with the eccentric related closing spring to prepare the next switch-on process. Because of the immediate Driving the switch-on shaft and thus the eccentric result not only shorter for tensioning the closing spring Clamping times, but because now the spur gear starts under load, i.e. no longer idles wear of the same is also reduced.
  • spring body on the needles of the freewheel of the freewheel bearing spring clips are preferably used, which is on the outer ring of the freewheel of the freewheel bearing support.
  • the invention excludes the use any other spring body that is on the needles of the Freewheel acts and deviates from the spring clip.
  • the last spur gear rotates during the switch-on process, taking into account the free wheel bearing over which it is on the Einschaltwelle is arranged, but also in that the teeth this spur gear with the teeth of the next spur gear of the spur gear are engaged, not with.
  • a preferred embodiment of the device is that with the last one, over the freewheel bearing on the engagement shaft arranged spur gear a single-stage spur gear in connection stands, the spur gear with the largest diameter, with a spur gear attached to the manual wind shaft with a smaller one Diameter is engaged, and on the manual wind shaft a free-wheel bearing is also arranged, the one with receives a collar provided on its outer circumference a return spring is arranged, one end of which at one on the stop element arranged with a collar and the second end of a stop element, from two stop elements arranged on the rear wall of the switch drive is attached.
  • the return spring which is advantageously a torsion spring, arranged on the shaft of the collar provided with a collar
  • the two on the rear wall of the switch drive attached stop elements by, for example, 180 ° be staggered. It is possible to go through the staggered arrangement of the stop elements achieved To achieve effect at a different angle, for example, if they are offset by 30 ° to each other are.
  • the rear wall of the switch drive and the manual winding shaft is also mounted in its front wall.
  • the freewheel bearing when preparing the circuit breaker for the next switch-on by actuation of the single-stage spur gear via the electric motor as an elevator motor or the manual winding shaft with a collar provided socket releases, so that by relaxing the return spring the socket can be rotated in the opposite direction until the stop element connected to the socket arranged on the second, on the rear wall of the switch drive Stop element strikes.
  • the triggering of the switch-on process is done by releasing the pawl 4 by a further jack, also not shown, which for Drive device belongs. Is the switch-on process through Release of the pawl 4 is triggered by the closing spring 7 not only the pawl 4, but also the eccentric 2 and so that the switch-on shaft 5 and the cam 3, which with a switch lever also not shown in Active connection is brought about 180 ° in the direction of arrow 8 turned.
  • the eccentric 2 passes through, due to the Kinetic energy, the bottom dead center 9 of the switch-on shaft 5, until finally the switch-on shaft 5, the eccentric 2 and the Pawl 4 assume the position shown in Fig. 2, in which the closing spring 7 is relaxed.
  • These needles 14 have sawtooth-shaped surfaces 15 low gradient in active connection, evenly distributed arranged on the inner circumference of the outer ring 13 of the freewheel 10 are so that their greatest distance to the inner
  • the circumference of the outer ring 13 is always in the direction of rotation (arrow direction 8 - Figs. 1 and 2) opposite side of the sawtooth Surfaces 15 is provided.
  • the needles are there 14 of the freewheel 10 of the freewheel bearing 6 under the force of Spring bodies 16, which are designed as spring clips, so that the needles 14 on the sawtooth-shaped surfaces 15 of the outer ring 13 of the freewheel 10, that is to say in the clamping direction, can be pressed are.
  • the spur gear 23 is the largest Diameter of the single-stage spur gear 17 with a the manual winding shaft 21 fixed spur gear 24 with a small Diameter engaged. It is also on the manual wind shaft 21 a one-way bearing 25 is arranged, one with a Bund 26 provided socket 27 receives on its outer circumference a return spring 28 is arranged. While one end 29 the return spring 28 on one arranged on the socket 27 Stop element 30 is attached, the second end 31 is the return spring 28 arranged on the shaft 32 of the bushing 27, with a stop element 33, two offset by 180 ° to each other stop elements attached to the rear wall 34 of the switch drive 33; 35. In this training is the Manual winding shaft 21 not only in the rear wall 34 but also stored in the front wall 36 of the switch drive.
  • a single-stage spur gear 17 one with a large one Reduction provided, as is also the case as a harmonic drive gear is known.
  • the one ring 37 of two is one above the other arranged rings 37; 38 of this transmission on the housing 39 of the electric motor 20 and the second ring 38 carries a double spur gear 40, the spur gear 41 with the smallest Diameter with the last arranged on the switch-on shaft 5 Spur gear 18 is engaged.
  • the single-stage spur gear 17 and its adaptation the conditions of the switch drive for a circuit breaker, especially a vacuum circuit breaker under Consideration of the manual winding shaft 21, but also the backstop 22 is by the device according to the invention at the same time influenced a reduction in the conversion Space in relation to the spur gear and thus on the Costs.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gear Transmission (AREA)
  • Transmission Devices (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Mechanical Operated Clutches (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
EP95915184A 1994-04-12 1995-04-04 Einrichtung zum spannen der einschaltfeder von antriebseinrichtungen für elektrische leistungsschalter, insbesondere vakuumleistungsschalter Expired - Lifetime EP0755564B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9530111T SI0755564T1 (en) 1994-04-12 1995-04-04 Device for tensioning the cut-in spring in actuator units for circuit breakers, in particular vacuum circuit breakers

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4413191 1994-04-12
DE19944413191 DE4413191C1 (de) 1994-04-12 1994-04-12 Einrichtung zum Spannen der Einschaltfeder von Antriebseinrichtungen für elektrische Leistungsschalter, insbesondere Vakuumleistungsschalter
DE1995103679 DE19503679C1 (de) 1995-01-30 1995-01-30 Aufzugsvorrichtung zum Spannen der Einschaltfeder von Antriebseinrichtungen für elektrische Leistungsschalter, insbesondere Vakuum-Leistungsschalter
DE19503679 1995-01-30
PCT/EP1995/001232 WO1995027992A1 (de) 1994-04-12 1995-04-04 Einrichtung zum spannen der einschaltfeder von antriebseinrichtungen für elektrische leistungsschalter, insbesondere vakuumleitsungsschalter

Publications (2)

Publication Number Publication Date
EP0755564A1 EP0755564A1 (de) 1997-01-29
EP0755564B1 true EP0755564B1 (de) 1998-07-01

Family

ID=25935674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95915184A Expired - Lifetime EP0755564B1 (de) 1994-04-12 1995-04-04 Einrichtung zum spannen der einschaltfeder von antriebseinrichtungen für elektrische leistungsschalter, insbesondere vakuumleistungsschalter

Country Status (21)

Country Link
EP (1) EP0755564B1 (es)
JP (1) JPH09511611A (es)
CN (1) CN1047461C (es)
AT (1) ATE167955T1 (es)
AU (1) AU690668B2 (es)
BG (1) BG62542B1 (es)
BR (1) BR9507461A (es)
CZ (1) CZ288683B6 (es)
DE (2) DE59502684D1 (es)
DK (1) DK0755564T3 (es)
ES (1) ES2120741T3 (es)
FI (1) FI964093A (es)
HU (1) HU220213B (es)
MX (1) MX9604525A (es)
MY (1) MY114088A (es)
NO (1) NO964343L (es)
NZ (1) NZ283744A (es)
PL (1) PL176808B1 (es)
SK (1) SK280118B6 (es)
TW (1) TW272295B (es)
WO (1) WO1995027992A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1901324A2 (de) 2006-09-18 2008-03-19 Schaltbau GmbH Vakuumschalter

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2399409T3 (es) * 2005-08-10 2013-04-01 Siemens Aktiengesellschaft Dispositivo tensor
FR2923075B1 (fr) * 2007-10-29 2009-12-25 Areva T & D Ag Actionneur d'un interrupteur comprenant un dispositif d'accouplement a roue libre
CN101834090A (zh) * 2010-05-27 2010-09-15 西安交通大学 一种配合126kV真空断路器负载特性的凸轮
DE102017216804B4 (de) * 2017-09-22 2020-11-05 Siemens Aktiengesellschaft Spanngetriebe zum Spannen einer Speicherfeder eines Federspeicherantriebs
JP7059812B2 (ja) * 2018-05-30 2022-04-26 トヨタ自動車株式会社 ワイヤー駆動搬送装置
CN115172080B (zh) * 2022-06-24 2024-07-12 河南平高电气股份有限公司 电动弹簧机构及高压开关

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039058A (en) * 1975-10-06 1977-08-02 The Falk Corporation One-way clutch and backstop incorporating the same
JPS60225315A (ja) * 1984-04-23 1985-11-09 三菱電機株式会社 しや断器用ばね操作装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1901324A2 (de) 2006-09-18 2008-03-19 Schaltbau GmbH Vakuumschalter
EP1901324A3 (de) * 2006-09-18 2009-03-04 Schaltbau GmbH Vakuumschalter

Also Published As

Publication number Publication date
CN1047461C (zh) 1999-12-15
SK280118B6 (sk) 1999-08-06
HUT75473A (en) 1997-05-28
CZ288683B6 (cs) 2001-08-15
HU220213B (hu) 2001-11-28
EP0755564A1 (de) 1997-01-29
FI964093A0 (fi) 1996-10-11
AU2215595A (en) 1995-10-30
BG62542B1 (bg) 2000-01-31
HU9602642D0 (en) 1996-11-28
PL176808B1 (pl) 1999-07-30
WO1995027992A1 (de) 1995-10-19
MX9604525A (es) 1997-12-31
CZ276096A3 (cs) 1998-08-12
DE59502684D1 (de) 1998-08-06
BR9507461A (pt) 1997-09-02
CN1146256A (zh) 1997-03-26
ES2120741T3 (es) 1998-11-01
NZ283744A (en) 1998-02-26
BG100891A (en) 1997-10-31
TW272295B (es) 1996-03-11
DE19580313D2 (de) 1997-10-16
DK0755564T3 (da) 1999-04-12
JPH09511611A (ja) 1997-11-18
SK122896A3 (en) 1997-06-04
MY114088A (en) 2002-08-30
NO964343D0 (no) 1996-10-11
NO964343L (no) 1996-11-28
PL316755A1 (en) 1997-02-03
ATE167955T1 (de) 1998-07-15
FI964093A (fi) 1996-12-05
AU690668B2 (en) 1998-04-30

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