EP0237857B1 - Dispositif d'entraînement pour un sectionneur électrique - Google Patents

Dispositif d'entraînement pour un sectionneur électrique Download PDF

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Publication number
EP0237857B1
EP0237857B1 EP87102885A EP87102885A EP0237857B1 EP 0237857 B1 EP0237857 B1 EP 0237857B1 EP 87102885 A EP87102885 A EP 87102885A EP 87102885 A EP87102885 A EP 87102885A EP 0237857 B1 EP0237857 B1 EP 0237857B1
Authority
EP
European Patent Office
Prior art keywords
spindle
hand crank
drive device
drive
guide sleeve
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
EP87102885A
Other languages
German (de)
English (en)
Other versions
EP0237857A3 (en
EP0237857A2 (fr
Inventor
Walter Ing. Hahn
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 EP0237857A2 publication Critical patent/EP0237857A2/fr
Publication of EP0237857A3 publication Critical patent/EP0237857A3/de
Application granted granted Critical
Publication of EP0237857B1 publication Critical patent/EP0237857B1/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
    • 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
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing

Definitions

  • the invention relates to a drive device according to the preamble of claim 1.
  • a drive device which has a spindle and a gear transmission coupled or couplable therewith for actuating the switching elements of the disconnector and which can be driven by a drive motor, has become known from DE-A-34 13 793.
  • a mechanical energy store in the form of a flywheel is provided, with which it is achieved that a switching operation that has been initiated is safely ended even if the drive motor fails. From certain points of view it is also necessary to carry out the drive manually and for this reason a hand crank can be attached to the spindle, with which the spindle rotates and thus the switching element or the switching elements of the disconnector can be switched on or off.
  • a motor drive for tap changers (DE-B 23 06 314 B) it is known to drive the drive shaft with a hand crank.
  • a separate, axially displaceable hand shaft with a spur gear is available for this.
  • the latter slides in a fixed bearing and has two defined axial positions.
  • there is a ball detent mechanism between the fixed bearing and the hand shaft which is controlled by a locking bolt which can slide inside the hand shaft and which can be actuated on the one hand by a spring and on the other hand by the hand crank.
  • the object of the invention is to design the drive device so that the switch-on process is facilitated and that it is ensured in any case that the drive motor is coupled to the spindle when the crank handle is removed.
  • the gear is attached to a guide sleeve surrounding the spindle, with which it is displaceable between two positions on the spindle by the hand crank and meshes in the first position with the toothed drive and in the second position by the pinion is free, and that between the hand crank and the guide sleeve controllable, arranged in the hand crank locking elements are provided, which only release the hand crank in the first position of the gear and allow the hand crank to be pulled out.
  • the gear When attaching the hand crank to the spindle, the gear is disengaged from the toothed drive coupled to the motor, making rotation of the spindle much easier because the mass of the moving parts of the motor does not have to be driven. Due to the design according to the invention, the gear is then brought back into the engagement position with the toothed drive when the hand crank is removed, and it is ensured that the hand crank can only be removed when the gear is coupled to the toothed drive.
  • a particularly advantageous embodiment of the invention can be gathered from the characterizing features of the subclaims.
  • An advantageous embodiment of the lock can be seen from the characterizing features of claim 2 and the coupling of the crank handle and gear from claims 3 to 10.
  • Balls can preferably be provided as sliding blocks.
  • the drive device is housed in its entirety in a box-shaped housing 10, of which only a part located directly in the area of the drive device is shown.
  • An intermediate wall 11 is located within the housing, and a spindle 14 is rotatably supported and fixed in an opening 12 in the housing 10 and an opening 13 in the intermediate wall 11.
  • the bearing is carried out by means of ball bearings 15 and 16.
  • the spindle 14 is provided with a drive thread 17 which meshes with a gear, not shown, whereby a worm drive is formed with which the movable contact or the movable contacts of a disconnector, which also is not shown, is driven.
  • the spindle 14 has one Blind hole 19, which has two sections 20 and 21 of different diameters, the transition to which bears the reference number 22.
  • the blind hole 19 continues at its bottom into a third section 23 with a diameter that is significantly smaller than that of the two sections 20 and 21, into which a rod 24 is inserted and fixed therein by means of a transverse retaining screw 25.
  • the length of the rod 24 is such that its free end 26 projects beyond the end face 18.
  • the free end 26 is provided with a cone tip 27, which serves as a sliding surface.
  • a piston 28 is guided inside the blind hole 19, specifically in the section 20 with the larger diameter, on which a cylindrical extension 29 directed towards the bottom of the blind hole 19 is formed. Between the piston 28 and the bottom of the blind hole 19 there is a compression spring 30 which continuously presses the piston in the direction of arrow P, that is to say practically out of the blind hole 19.
  • a sliding sleeve 31 is slidably mounted on the spindle 14, which surrounds the spindle 14 and always projects above the end face 18.
  • the outer surface of the guide sleeve 31 has two sections of different diameters, namely a section 32 with a larger and a section 33 with a smaller diameter.
  • the inner ring of the bearing 15 encompasses the outer surface of the section 33 with a smaller diameter such that the guide sleeve 31 can slide within the inner ring of the bearing 15.
  • the spindle In the area of the bearing 16, the spindle has a radially extending shoulder 34, so that the guide sleeve 31, which is guided to slide back and forth on the spindle 14, in one position against the paragraph 34 and in its other position with the transition 35 between the two sections 32 and 33 against the inner ring of the bearing 15 comes to a stop.
  • the guide sleeve 31 is movable or displaceable between these two positions.
  • a radial flange 36 On the outer surface of the guide sleeve 31, specifically in the region of the larger diameter 32, a radial flange 36 is provided, to which a gearwheel 37 is attached. This gear 37 meshes with a gear 38 which is coupled to an electric motor, not shown.
  • the guide sleeve 31 has a radially inwardly directed collar 39 at the end of the section 33 with a smaller diameter, as a result of which an annular space 40 is formed between the end face 18 and the inner surface of the collar 39 in the position shown in FIG.
  • a transverse web 41 which extends within the guide sleeve 31 and extends transversely to its longitudinal axis and which extends through the blind hole 19 in its area outside the piston 28.
  • the free end 42 of a crank handle 43 is inserted into the blind hole 19.
  • the free end 42 has a blind hole 44, the inside diameter of which corresponds to the outside diameter of the rod 24, so that the rod 24 can engage in the blind hole 44.
  • three bores 45, 47 and 48 and three balls 46, 49 and 50 housed uniformly on the circumference.
  • a fork-shaped recess 51 is provided, which is designed so that it can enclose the crossbar 41 in a form-fitting manner.
  • FIG. 1 shows the drive device in the state in which the drive crank 43 has just been inserted.
  • the fork-shaped depression 51 has just encompassed the crossbar 41 and the rod 24 engages in the blind hole 44 of the crank handle.
  • the balls 46 are still in their inner position, in which they project beyond the inner surface of the blind hole 44 and lie within the outer surface of the crank handle 43 or its free end 42. This made it possible to insert the drive crank 43 with the balls 46, 49 and 50 through the collar 39, so that the balls 46, 49 and 50 get inside the collar 39.
  • the balls 46 or 49 and 50 run onto the cone tip 27 and are pressed out of the outer surface of the free end 42 of the crank handle 43 into the annular space 40.
  • the balls 46, 49 and 50 lie against the collar 39, so that the guide sleeve 31 is pulled upwards, ie in the direction of arrow P, over the balls 46, 49 .
  • the uncoupling takes place when the balls have passed the cone tip 27 and can migrate inwards into the inside of the outer surface of the hand crank. Then the positive connection between the balls and the collar is released, and the hand crank can be pulled out completely.
  • the rod 24 is so long that the balls are released at the moment when the two gears 37 and 38 fully mesh again.
  • the balls 46, 49 and 50 are radially freely movable in their bores 45, 47 and 48, but are prevented from falling out of the crank handle 42.

Landscapes

  • Transmission Devices (AREA)
  • Mechanisms For Operating Contacts (AREA)

Claims (11)

  1. Dispositif d'entraînement pour un sectionneur comportant une broche (14) montée mobile en rotation et fixe dans la direction axiale, qui est couplée en entraînement à l'élément de contact mobile du sectionneur de manière telle que l'élément de contact mobile soit actionné lors de la rotation de la broche (14), et une roue dentée (37) montée sur la broche (14) qui engrène avec une transmission à engrenages couplée à un mécanisme d'entraînement à moteur électrique pour son entraînement en rotation et, ainsi, pour l'actionnement de l'élément de contact mobile, la broche (14) pouvant également être mise en rotation à l'aide d'une manivelle (43), caractérisé en ce que la roue dentée (37) est montée sur une douille de guidage (31) entourant la broche (14), avec laquelle elle peut être déplacée par la manivelle (43) sur la broche (14) entre deux positions, la roue dentée engrenant avec la transmission à engrenages (38) dans la première position, et, étant désengagée de la transmission à engrenages (38) dans la deuxième position, et en ce qu'il est prévu, entre la manivelle (43) et la douille de guidage (31), des organes de verrouillage (46, 49, 50) commandés, disposés à l'intérieur de la manivelle (43), qui libèrent la manivelle (43) uniquement dans la première position de la roue dentée (37) et permettent de retirer la manivelle (43).
  2. Dispositif d'entraînement selon la revendication 1, caractérisé en ce que la broche (14) comporte à son extrémité frontale un perçage borgne (19) recevant la queue d'emmanchement de la manivelle (43) avec une coulisse (24, 27) en forme de tige montée à l'intérieur de cellec-i et les organes de verrouillage (46, 49, 50) comportent au moins un coulisseau qui peut se déplacer radialement qui, lors de l'introduction de la manivelle (43) dans le perçage borgne (19), est ou sont repoussé(s) par la coulisse (24, 27) vers l'extérieur dans une chambre qui est délimitée par un élément formant saillie (39) solidaire de la roue dentée (37).
  3. Dispositif d'entraînement selon la revendication 2, caractérisé en ce que la douille de guidage (31) entoure l'extrémité libre de la broche (14) et en ce que l'élément formant saillie (39) est formé sur la douille de guidage (31).
  4. Dispositif d'entraînement selon la revendication 3, caractérisé en ce que l'élément formant saillie (39) a une forme de collet et fait saillie vers l'intérieur et en ce qu'une chambre annulaire (40) dans laquelle s'engage(nt) le ou les coulisseaux est formée entre l'élément formant saillie (39) et la face frontale de la broche (14).
  5. Dispositif d'entraînement selon la revendication 4, caractérisé en ce qu'une barrette transversale (41) qui s'engage par conjuguaison de forme dans l'extrémité libre en forme de fourche (42) de la manivelle (43) et coopère avec celle-ci est formée à l'intérieur de la douille de guidage (31) perpendiculairement à l'axe longitudinal de la broche (14).
  6. Dispositif d'entraînement selon la revendication 5, caractérisé en ce qu'il est prévu, à l'intérieur du perçage borgne (19), entre le fond de celui-ci et la barrette transversale (41), un ressort de compression (30) qui applique la barrette transversale (41) et par conséquent la douille de guidage (31) contre une butée fixe lorsque la manivelle est retirée.
  7. Dispositif d'entraînement selon la revendication 6, caractérisé en ce qu'il est prévu, pour le guidage du ressort de compression (30), à l'intérieur du perçage borgne (19), un piston (28) qui est appliqué par le ressort de compression (30) contre la barrette transversale (41).
  8. Dispositif d'entraînement selon la revendication 7, caractérisé en ce qu'il est prévu, à l'intérieur du perçage borgne (19), un épaulement (22) contre lequel le piston (28) est repoussé par la manivelle par l'intermédiaire de la barrette transversale (41) afin de limiter la course du piston (28), le piston (37) étant désengagé de la transmission à engrenages (38) dans cette deuxième position.
  9. Dispositif d'entraînement selon l'une des revendications précédentes, caractérisé en ce que la coulisse (24, 27) est constituée d'une tige (24) munie d'une extrémité conique (27) et en ce que la coulisse (24, 27) est montée à l'intérieur du perçage borgne (19).
  10. Dispositif d'entraînement selon la revendication 9, caractérisé en ce que la longueur de la tige (24) est telle que le ou les coulisseaux ne sont libérés par la coulisse (24, 27) que lorsque le pignon (37) engrène avec la commande à engrenages lors du retrait de la manivelle (43).
  11. Dispositif d'entraînement selon la revendication 8, caractérisé en ce que le ou les coulisseaux sont des billes (46, 49, 50).
EP87102885A 1986-03-14 1987-02-28 Dispositif d'entraînement pour un sectionneur électrique Expired - Lifetime EP0237857B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863608481 DE3608481A1 (de) 1986-03-14 1986-03-14 Antriebsvorrichtung fuer einen elektrischen trennschalter
DE3608481 1986-03-14

Publications (3)

Publication Number Publication Date
EP0237857A2 EP0237857A2 (fr) 1987-09-23
EP0237857A3 EP0237857A3 (en) 1989-06-07
EP0237857B1 true EP0237857B1 (fr) 1992-06-10

Family

ID=6296309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102885A Expired - Lifetime EP0237857B1 (fr) 1986-03-14 1987-02-28 Dispositif d'entraînement pour un sectionneur électrique

Country Status (3)

Country Link
EP (1) EP0237857B1 (fr)
JP (1) JPS62226516A (fr)
DE (2) DE3608481A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4142548C2 (de) * 1991-12-21 1997-07-03 Abb Energie Ag Antrieb für einen Trennschalter, insbesondere für einen Fahrleitungsschalter
DE4227953C1 (de) * 1992-08-22 1994-03-17 Felten & Guilleaume Energie Motorantriebsvorrichtung für Schaltgeräte, insbesondere für Mittelspannungsschaltanlagen
DE19817400C1 (de) * 1998-04-20 1999-09-09 Mueller Jean Ohg Elektrotech Schaltwerk für einen elektrischen Lastschalter
DE10354595B4 (de) * 2003-11-21 2005-09-22 Abb Technology Ag Spindelantrieb für einen Trenn- und/oder Erdungsschalter
DE10354594B4 (de) * 2003-11-21 2005-08-25 Abb Technology Ag Antriebseinheit eines Schaltgerätes einer gasisolierten Schaltanlage und Baukastensystem zur Bildung einer Antriebseinheit
DE10354592B3 (de) * 2003-11-21 2005-08-11 Abb Technology Ag Induktionsantrieb für einen Trenn- und/oder Erdungsschalter
GB0507119D0 (en) * 2005-04-08 2005-05-11 Viserge Ltd Improvements relating to switch operation in electrical power distribution networks
DE102012008129A1 (de) 2011-07-25 2013-01-31 Abb Technology Ag Verriegelungsvorrichtung für eine Antriebseinheit zur Betätigung eines Schaltgerätes einer Schaltanlage
DE102012008130A1 (de) 2011-07-25 2013-01-31 Abb Technology Ag Antriebseinheit für einen Spindelantrieb
CN106449196A (zh) * 2016-08-31 2017-02-22 连云港市港圣开关制造有限公司 一种电动隔离开关

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3413793A1 (de) * 1984-04-12 1985-10-24 Brown, Boveri & Cie Ag, 6800 Mannheim Antrieb fuer einen schalter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE918696C (de) * 1944-01-24 1954-10-04 Siemens Ag Aussetzgetriebe mit gleichachsig angeordnetem Antriebs- und Abtriebsteil
US2669614A (en) * 1949-11-03 1954-02-16 Westinghouse Electric Corp Switch operating mechanism
DE2306314C2 (de) * 1973-02-09 1975-01-09 Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg Kombinierter Motor- und Handantrieb für Stufenschalter von Regeltransformatoren
DE3020800C2 (de) * 1980-05-31 1983-10-20 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Vakuum-Leistungsschalter
FR2559307B1 (fr) * 1984-02-03 1986-06-13 Telemecanique Electrique Contact equipe d'un compensateur magnetique autoliberable a partir d'un seuil de force de compensation, et contacteur-disjoncteur utilisant un tel contact

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3413793A1 (de) * 1984-04-12 1985-10-24 Brown, Boveri & Cie Ag, 6800 Mannheim Antrieb fuer einen schalter

Also Published As

Publication number Publication date
EP0237857A3 (en) 1989-06-07
EP0237857A2 (fr) 1987-09-23
JPS62226516A (ja) 1987-10-05
DE3779680D1 (de) 1992-07-16
DE3608481A1 (de) 1987-09-17

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