EP1913615A1 - Tensioning apparatus - Google Patents

Tensioning apparatus

Info

Publication number
EP1913615A1
EP1913615A1 EP05777787A EP05777787A EP1913615A1 EP 1913615 A1 EP1913615 A1 EP 1913615A1 EP 05777787 A EP05777787 A EP 05777787A EP 05777787 A EP05777787 A EP 05777787A EP 1913615 A1 EP1913615 A1 EP 1913615A1
Authority
EP
European Patent Office
Prior art keywords
pawl
drive wheel
clamping
switch
shaft
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.)
Granted
Application number
EP05777787A
Other languages
German (de)
French (fr)
Other versions
EP1913615B1 (en
Inventor
Karsten Freundt
Klaus Klimek
Karl-Heinz Voss
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1913615A1 publication Critical patent/EP1913615A1/en
Application granted granted Critical
Publication of EP1913615B1 publication Critical patent/EP1913615B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01H3/3005—Charging means
    • 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
    • H01H2003/3063—Decoupling charging handle or motor at end of charging cycle or during charged condition

Definitions

  • the invention relates to a tensioning device for a switching energy storage of a circuit breaker in which a rotatable by means of a drive wheel clamping shaft for clamping the switch energy storage is firmly connected to an eccentric and with a cam and which has a release stop, and wherein the drive wheel via a clutch coupled with the tensioning shaft.
  • Such a clamping device is known from DE 199 33 637 Cl.
  • a spur gear is separated as a drive wheel after tensioning a closing spring as a switch-on energy storage by a disengageable clutch.
  • a disengageable clutch By separating or decoupling is achieved that the spur gear, which is the spur gear of a transmission, and thus continue to run the gear or can be further rotated without increased wear of the tensioning device or the transmission, for example, by improper operation occurs.
  • the disengageable clutch comprises a bearing sleeve which can be displaced by means of balls and which engages over a toothed surface with a toothed surface of the spur gear, as long as a lever system of two rotatably mounted levers with wedge-shaped surfaces and a knee lever system connected thereto via a pressure element engages the bearing sleeve with the spur gear coupled.
  • the toggle lever system is raised via a further pressure element, whereby the two levers are rotated, so that the spur gear is decoupled from the bearing sleeve.
  • Object of the present invention is to form a clamping device of the type mentioned, which has a simple and inexpensive construction.
  • the coupling is a latch arrangement.
  • a clamping device is provided, which is designed in terms of their coupling in an advantageous manner simple and cost-effective, because the latch assembly requires relatively few components. It is alone prevented by the latch arrangement that by a further actuation of the drive wheel after a
  • the pawl assembly has a pawl rotatably mounted on the drive wheel, and a fixed stop member is provided for controlling the pawl.
  • the fixed stop element is arranged in such a way that when the turntable energy storage reservoir is tensioned, the catch releases the tensioning shaft.
  • the pawl assembly has a fixedly connected to the clamping shaft and cooperating with the pawl carrier. The arrangement of such a driver is a simple and convenient way to couple the drive wheel and the clamping shaft with each other by means of the pawl to perform a clamping operation.
  • the latch assembly may be guided in different ways with respect to its free end, for example by a stationary guideway.
  • the latch arrangement has a spring element. By providing a spring element ensures that the pawl is held during a clamping operation in a cooperating with the driver position.
  • a position pin is provided on the drive wheel.
  • the provision of such a position pin advantageously limits the rotation of the rotatably mounted pawl by the force transmitted by the spring element, whereby a wear of the pawl is prevented by a sliding movement on the tensioning shaft during rotation in preparation for a clamping operation of the circuit breaker.
  • Figure 1 is a schematic side view of the clamping device according to the invention
  • Figure 2 is a front view of the clamping device of Figure 1 in a first position during the clamping operation
  • Figure 3 is a front view of the tensioning device in a decoupled position.
  • FIG. 1 shows a tensioning device according to the invention for a switch-on energy storage in a schematic side view.
  • the device comprises a tensioning shaft 1, at the first end 2 of which an eccentric 3 is arranged.
  • a cam 5 is fixedly connected to the clamping shaft 1.
  • the cam 5 is in a circuit breaker in operative connection with a switching shaft, not shown, for transmitting the energy stored in the power-on energy storage to close movable contacts of the circuit breaker.
  • a fixed stop element 7 is arranged on a housing part 6 of the clamping device, in which the clamping shaft 1 is rotatably mounted by means of ball bearings 6a, 6b.
  • a driver 8 Firmly connected to the tensioning shaft 1 is a driver 8, which cooperates via a pawl 9 with a drive wheel 10.
  • the pawl 9 is rotatably arranged by means of a spring element 11 on the drive wheel 10.
  • the drive wheel 10 is the last drive wheel of a transmission, not shown, for example, a worm gear which is driven by means of a hand crank or a motor drive.
  • a switch-on energy storage 13, for example a spring element 13 is arranged in a hinge.
  • a trigger stop 14 is provided as a stop for the clamping device after a clamping operation, wherein the trigger stop can be triggered by means of a release mechanism, not shown, to clamped Einschaltergie notes perform a switching operation of the circuit breaker.
  • FIG. 2 shows a front view of the clamping device according to the invention in a position during the clamping operation of the switch-on energy storage.
  • the pawl 9 is at its end 15 via the contact surface 16 with the driver 8 in contact.
  • a stop 17 is formed, which bears against a drive pin 10 on a position pin 18.
  • FIG 3 the position of the pawl 9 is shown after a completely executed clamping operation of the switch-on energy storage device 13.
  • the pawl 9 comes into contact with the fixed stop element 7, whereby a rotation of the pawl 9 is triggered about the axis 12 in the counterclockwise direction, so that the contact surface 16 is no longer applied to the driver 8 and the Pawl is pivoted away from the driver 8.
  • the clamping shaft 1 is decoupled in this position from the drive wheel 10 and thus from the drive. By a further rotation of the drive wheel 10 thus no force is exerted on the cam or the eccentric more.
  • the pawl is thereby further deflected on the fixed stop element 7 and moves along it until, due to the rotation of the drive wheel, the pawl is no longer in contact with the fixed stop element and is rotated in the direction of the tensioning shaft by the force exerted by the spring element 11 until the pawl rests against the position pin 18.
  • the position pin 13 prevents the pawl 9 from resting on the tensioning shaft 1 during the further rotational movement of the drive wheel 10.
  • the pawl 9 comes into contact with the driver 8, so that the drive wheel 10 and the tensioning shaft 1 are coupled again and the switch-on energy store 13 is again tensioned.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

In order to form a tensioning apparatus for a switch-on energy store of a circuit breaker, in which apparatus a tensioning shaft, which can rotate by means of a drive wheel, for tensioning the switch-on energy store is fixedly connected in each case to a cam and to a cam disc, which apparatus has a tripping stop, in which apparatus the drive wheel is coupled to the tensioning shaft via a clutch, and which apparatus has a simple and at the same time cost-effective design, the invention proposes that the clutch is a ratchet arrangement.

Description

Beschreibungdescription
Spannvorrichtungjig
Die Erfindung betrifft eine Spannvorrichtung für einen Einschaltenergiespeicher eines Leistungsschalters, bei der eine mittels eines Antriebsrades drehbare Spannwelle zum Spannen des Einschaltenergiespeichers fest jeweils mit einem Exzenter und mit einer Kurvenscheibe verbunden ist und die einen Aus- löseanschlag aufweist, und bei der das Antriebsrad über eine Kupplung mit der Spannwelle gekoppelt ist.The invention relates to a tensioning device for a switching energy storage of a circuit breaker in which a rotatable by means of a drive wheel clamping shaft for clamping the switch energy storage is firmly connected to an eccentric and with a cam and which has a release stop, and wherein the drive wheel via a clutch coupled with the tensioning shaft.
Eine derartige Spannvorrichtung ist aus der DE 199 33 637 Cl bekannt. Bei dieser Spannvorrichtung wird ein Stirnrad als Antriebsrad nach dem Spannen einer Einschaltfeder als Einschaltenergiespeicher durch eine ausrückbare Kupplung getrennt. Durch das Trennen bzw. Entkoppeln wird erreicht, dass das Stirnrad, welches das Stirnrad eines Getriebes ist, und damit das Getriebe weiterlaufen bzw. weitergedreht werden können, ohne dass ein erhöhter Verschleiß der Spannvorrichtung oder des Getriebes beispielsweise durch unsachgemäße Betätigung auftritt. Die ausrückbare Kupplung umfasst dabei eine über Kugeln verschiebbare Lagerhülse, welche über eine gezahnte Fläche mit einer gezahnten Fläche des Stirnrades in Eingriff steht, solange ein Hebelsystem aus zwei drehbar gelagerten Hebeln mit keilförmigen Flächen sowie einem damit verbundenen KniehebelSystem über ein Druckelement die Lagerhülse mit dem Stirnrad koppelt. Nach ausgeführtem Spannvorgang wird über ein weiteres Druckelement das Kniehebelsystem angehoben, wodurch die beiden Hebel gedreht werden, so dass das Stirnrad von der Lagerhülse entkoppelt wird. Die Anordnung mit einer über ein Kugellager verschiebbaren Lagerhülse, welche über ein Hebelsystem aus mehreren drehbar gelagerten Hebeln und gezahnte Flächen mit dem Stirnrad des Getriebes ge- bzw. entkoppelt wird, stellt eine aufwändige und gleichzeitig kostenintensive Anordnung dar.Such a clamping device is known from DE 199 33 637 Cl. In this clamping device, a spur gear is separated as a drive wheel after tensioning a closing spring as a switch-on energy storage by a disengageable clutch. By separating or decoupling is achieved that the spur gear, which is the spur gear of a transmission, and thus continue to run the gear or can be further rotated without increased wear of the tensioning device or the transmission, for example, by improper operation occurs. The disengageable clutch comprises a bearing sleeve which can be displaced by means of balls and which engages over a toothed surface with a toothed surface of the spur gear, as long as a lever system of two rotatably mounted levers with wedge-shaped surfaces and a knee lever system connected thereto via a pressure element engages the bearing sleeve with the spur gear coupled. After performing the clamping operation, the toggle lever system is raised via a further pressure element, whereby the two levers are rotated, so that the spur gear is decoupled from the bearing sleeve. The arrangement with a sliding about a ball bearing sleeve, which via a lever system of a plurality of rotatably mounted levers and toothed surfaces with the spur gear of the transmission is coupled or decoupled, represents a complex and cost-intensive arrangement.
Aufgabe der vorliegenden Erfindung ist es, eine Spannvorrich- tung der eingangs erwähnten Art auszubilden, die einen einfachen und kostengünstigen Aufbau aufweist.Object of the present invention is to form a clamping device of the type mentioned, which has a simple and inexpensive construction.
Gelöst wird die Aufgabe dadurch, dass erfindungsgemäß die Kupplung eine Klinkenanordnung ist. Durch eine derartige Klinkenanordnung ist eine Spannvorrichtung geschaffen, die hinsichtlich ihrer Kupplung in vorteilhafter Weise einfach und gleichzeitig kostengünstig ausgeführt ist, weil die Klinkenanordnung mit vergleichsweise wenigen Bauteilen auskommt. Dabei ist allein durch die Klinkenanordnung verhindert, dass durch eine weitere Betätigung des Antriebsrades nach einemThe object is achieved in that according to the invention the coupling is a latch arrangement. By such a pawl arrangement, a clamping device is provided, which is designed in terms of their coupling in an advantageous manner simple and cost-effective, because the latch assembly requires relatively few components. It is alone prevented by the latch arrangement that by a further actuation of the drive wheel after a
Spannvorgang eine unsachgemäße Belastung der Spannvorrichtung stattfindet, beispielsweise bei einem Nachlaufen eines Motorantriebes .Clamping improper loading of the tensioning device takes place, for example, when a motor drive.
In einer bevorzugten Ausführungsform weist die Klinkenanordnung eine am Antriebsrad drehbar angeordnete Klinke auf, und ein festes Anschlagelement ist zur Steuerung der Klinke vorgesehen. Vorteilhaft bei einer solchen Anordnung ist, dass allein durch die drehbare Anordnung der Klinke und das feste Anschlagelement ein Steuern der Klinke und dadurch eine Entkopplung des Antriebsrades von der Spannwelle ermöglicht wird.In a preferred embodiment, the pawl assembly has a pawl rotatably mounted on the drive wheel, and a fixed stop member is provided for controlling the pawl. An advantage of such an arrangement is that alone by the rotatable arrangement of the pawl and the fixed stop element controlling the pawl and thereby decoupling of the drive wheel is made possible by the clamping shaft.
Bei einer vorteilhaften Ausgestaltung ist das feste Anschlag- element derart angeordnet, dass bei gespanntem Einschaltener- giespeicher die Klinke die Spannwelle freigibt. Eine solche Anordnung bietet eine einfache Möglichkeit zur Entkopplung der Spannwelle vom Antrieb nach einem Spannvorgang bei gespanntem Einschaltenergiespeicher. Bei einer anderen vorteilhaften Ausgestaltung weist die Klinkenanordnung einen mit der Spannwelle fest verbundenen und mit der Klinke zusammenwirkenden Mitnehmer auf. Die Anordnung eines solchen Mitnehmers ist eine einfache und zweckmäßige Möglichkeit, das Antriebsrad und die Spannwelle mittels der Klinke miteinander zu koppeln, um einen Spannvorgang auszuführen .In an advantageous embodiment, the fixed stop element is arranged in such a way that when the turntable energy storage reservoir is tensioned, the catch releases the tensioning shaft. Such an arrangement provides an easy way to decouple the tensioning shaft from the drive after a clamping operation with a tensioned switch energy storage. In another advantageous embodiment, the pawl assembly has a fixedly connected to the clamping shaft and cooperating with the pawl carrier. The arrangement of such a driver is a simple and convenient way to couple the drive wheel and the clamping shaft with each other by means of the pawl to perform a clamping operation.
Die Klinkenanordnung kann bezüglich ihres freien Endes in unterschiedlicher Weise geführt werden, beispielsweise durch eine ortsfeste Führungsbahn. In vorteilhafter Weiterbildung weist die Klinkenanordnung ein Federelement auf. Durch das Vorsehen eines Federelementes ist gewährleistet, dass die Klinke während eines Spannvorganges in einer mit dem Mitnehmer zusammenwirkenden Position gehalten ist.The latch assembly may be guided in different ways with respect to its free end, for example by a stationary guideway. In an advantageous development, the latch arrangement has a spring element. By providing a spring element ensures that the pawl is held during a clamping operation in a cooperating with the driver position.
In weiterer bevorzugter Ausgestaltung der Erfindung ist am Antriebsrad ein Positionsstift vorgesehen. Das Vorsehen eines derartigen Positionsstiftes begrenzt in vorteilhafter Weise die Drehung der drehbar gelagerten Klinke durch die von dem Federelement übertragene Kraft, wodurch ein Verschleiß der Klinke durch eine schleifende Bewegung auf der Spannwelle während einer Drehung zur Vorbereitung eines Spannvorganges des Leistungsschalters verhindert wird.In a further preferred embodiment of the invention, a position pin is provided on the drive wheel. The provision of such a position pin advantageously limits the rotation of the rotatably mounted pawl by the force transmitted by the spring element, whereby a wear of the pawl is prevented by a sliding movement on the tensioning shaft during rotation in preparation for a clamping operation of the circuit breaker.
Die Erfindung wird im Folgenden anhand der beigefügten Zeichnungen sowie eines Ausführungsbeispiels mit Bezug auf die Figuren näher erläutert .The invention will be explained in more detail below with reference to the accompanying drawings and an embodiment with reference to the figures.
Es zeigen:Show it:
Figur 1 einen schematische Seitenansicht der erfindungsgemäßen Spannvorrichtung; Figur 2 eine Vorderansicht der Spannvorrichtung aus Figur 1 in einer ersten Position während des Spannvorganges;Figure 1 is a schematic side view of the clamping device according to the invention; Figure 2 is a front view of the clamping device of Figure 1 in a first position during the clamping operation;
Figur 3 eine Vorderansicht der Spannvorrichtung in einer entkoppelten Position.Figure 3 is a front view of the tensioning device in a decoupled position.
Figur 1 zeigt eine erfindungsgemäße Spannvorrichtung für einen Einschaltenergiespeicher in einer schematischen Seitenansicht. Die Vorrichtung umfasst eine Spannwelle 1, an deren erstem Ende 2 ein Exzenter 3 angeordnet ist . Am zweiten Ende 4 der Spannwelle 1 ist eine Kurvenscheibe 5 fest mit der Spannwelle 1 verbunden. Die Kurvenscheibe 5 steht bei einem Leistungsschalter in einer Wirkverbindung mit einer nicht dargestellten Schaltwelle zur Übertragung der im Einschalt- energiespeicher gespeicherten Energie, um bewegliche Kontakte des Leistungsschalters zu schließen. An einem Gehäuseteil 6 der Spannvorrichtung, in welchem die Spannwelle 1 mittels Ku- gellagern 6a, 6b drehbar gelagert ist, ist ein festes Anschlagelement 7 angeordnet. Mit der Spannwelle 1 fest verbunden ist ein Mitnehmer 8, welcher über eine Klinke 9 mit einem Antriebsrad 10 zusammenwirkt. Die Klinke 9 ist dabei mittels eines Federelementes 11 am Antriebsrad 10 drehbar angeordnet. Das Antriebsrad 10 ist das letzte Antriebsrad eines nicht dargestellten Getriebes, beispielsweise eines Schneckengetriebes, welches mittels eines Handkurbel- oder eines Motor- Antriebes antreibbar ist. Am Exzenter 3 ist ein Einschalt- energiespeicher 13, beispielsweise ein Federelement 13, ge- lenkig angeordnet. Ein Auslöseanschlag 14 ist als Anschlag für die Spannvorrichtung nach einem Spannvorgang vorgesehen, wobei der Auslöseanschlag mittels eines nicht dargestellten Auslösemechanismus ausgelöst werden kann, um bei gespanntem Einschaltenergiespeicher einen Schaltvorgang des Leistungs- schalters auszuführen.FIG. 1 shows a tensioning device according to the invention for a switch-on energy storage in a schematic side view. The device comprises a tensioning shaft 1, at the first end 2 of which an eccentric 3 is arranged. At the second end 4 of the clamping shaft 1, a cam 5 is fixedly connected to the clamping shaft 1. The cam 5 is in a circuit breaker in operative connection with a switching shaft, not shown, for transmitting the energy stored in the power-on energy storage to close movable contacts of the circuit breaker. On a housing part 6 of the clamping device, in which the clamping shaft 1 is rotatably mounted by means of ball bearings 6a, 6b, a fixed stop element 7 is arranged. Firmly connected to the tensioning shaft 1 is a driver 8, which cooperates via a pawl 9 with a drive wheel 10. The pawl 9 is rotatably arranged by means of a spring element 11 on the drive wheel 10. The drive wheel 10 is the last drive wheel of a transmission, not shown, for example, a worm gear which is driven by means of a hand crank or a motor drive. On the eccentric 3, a switch-on energy storage 13, for example a spring element 13, is arranged in a hinge. A trigger stop 14 is provided as a stop for the clamping device after a clamping operation, wherein the trigger stop can be triggered by means of a release mechanism, not shown, to clamped Einschaltergiespeicher perform a switching operation of the circuit breaker.
Figur 2 zeigt eine Vorderansicht der erfindungsgemäßen Spann- Vorrichtung in einer Position während des Spannvorganges des Einschaltenergiespeichers. Die Klinke 9 steht an ihrem Ende 15 über die Kontaktfläche 16 mit dem Mitnehmer 8 in Kontakt. Am Ende 15 der Klinke 9 ist ein Anschlag 17 ausgebildet, der an einem Positionsstift 18 am Antriebsrad 10 anliegt. Durch eine über den Antrieb herbeigeführte Drehung des Antriebsrades 10 wird über die am Mitnehmer 8 anliegende Klinke 9 die Spannwelle 1 und damit der Exzenter 3 in eine Drehung im Uhrzeigersinn versetzt. Dadurch wird der an dem Exzenter gelagerte Einschaltenergiespeicher 13 gespannt. In der Stellung der Figur 2 befindet sich der Exzenter 3 in einer Position, in der der Einschaltenergiespeicher 1 sich unter seiner maximalen Druckfederspannung befindet. Um ein zum Auslösen eines Sehaltvorganges nötiges Drehmoment zu erzeugen, muss der Exzenter in eine um einige Grad von dieser maximalen Strecklage abweichende Position weiter gedreht werden.Figure 2 shows a front view of the clamping device according to the invention in a position during the clamping operation of the switch-on energy storage. The pawl 9 is at its end 15 via the contact surface 16 with the driver 8 in contact. At the end 15 of the pawl 9, a stop 17 is formed, which bears against a drive pin 10 on a position pin 18. By a brought about via the drive rotation of the drive wheel 10, the clamping shaft 1 and thus the eccentric 3 is set in a clockwise rotation via the voltage applied to the driver 8 pawl 9. As a result, the stored on the eccentric switch energy storage 13 is stretched. In the position of Figure 2, the eccentric 3 is in a position in which the Einschaltergiespeicher 1 is below its maximum compression spring tension. In order to produce a torque necessary to trigger a Sehaltvorganges, the eccentric must be rotated in a deviating by a few degrees from this maximum stretch position position.
In Figur 3 ist die Position der Klinke 9 nach einem vollständig ausgeführten Spannvorgang des Einschaltenergiespeichers 13 dargestellt. Bei der Drehung des Antriebsrades 10 im Uhr- zeigersinn gelangt die Klinke 9 in Kontakt mit dem festen Anschlagelement 7, wodurch eine Drehung der Klinke 9 um die Achse 12 im Gegenuhrzeigersinn ausgelöst wird, so dass die Kontaktfläche 16 nicht mehr am Mitnehmer 8 anliegt und die Klinke vom Mitnehmer 8 weggeschwenkt ist. Die Spannwelle 1 ist in dieser Position vom Antriebsrad 10 und damit vom Antrieb entkoppelt . Durch eine weitere Drehung des Antriebsrades 10 wird somit keine Kraft auf die Kurvenscheibe oder den Exzenter mehr ausgeübt . Bei einem Einschaltvorgang wird der Auslδseanschlag 14 gelöst, so dass die im Einschaltenergiespeicher 13 gespeicherte Energie zur Drehung der mit der Spannwelle 1 verbundenen Kurvenscheibe 5 und damit zum Schließen der beweglichen Kontakt des Leistungsschalters aufgewendet wird. Dabei dreht sich die Spannwelle 1 und die mit ihr verbundenen Teile in Richtung des Pfeils 19 der Figur 3, bis der Einschaltenergiespeicher 13 vollständig entspannt ist. Das Antriebsrad 10 mit der Klinke 9 verbleibt dabei in der Position der Figur 3. Dadurch wird beim Schaltvorgang keine Energie auf das Antriebsrad und den Antrieb übertragen. Wird nach dem Schaltvorgang ein neuer Spannvorgang ausgeführt, so wird über den Antrieb das Antriebsrad 10 ebenfalls in Richtung des Pfeils 19 bewegt. Die Klinke wird dabei am festen Anschlagelement 7 weiter ausge- lenkt und bewegt sich an diesem entlang, bis durch die Drehung des Antriebsrades die Klinke nicht mehr mit dem festen Anschlagelement in Kontakt ist und durch die vom Federelement 11 ausgeübte Kraft in Richtung der Spannwelle gedreht wird, bis die Klinke am Positionsstift 18 anliegt. Durch den Posi- tionsstift 13 wird verhindert, dass die Klinke 9 während der weiteren Drehbewegung des Antriebsrades 10 auf der Spannwelle 1 aufliegt. Durch die weitere Drehbewegung gelangt die Klinke 9 in Kontakt mit dem Mitnehmer 8, so dass das Antriebsrad 10 und die Spannwelle 1 wieder gekoppelt sind und der Einschalt- energiespeicher 13 wieder gespannt wird. In Figure 3, the position of the pawl 9 is shown after a completely executed clamping operation of the switch-on energy storage device 13. Upon rotation of the drive wheel 10 in the clockwise direction, the pawl 9 comes into contact with the fixed stop element 7, whereby a rotation of the pawl 9 is triggered about the axis 12 in the counterclockwise direction, so that the contact surface 16 is no longer applied to the driver 8 and the Pawl is pivoted away from the driver 8. The clamping shaft 1 is decoupled in this position from the drive wheel 10 and thus from the drive. By a further rotation of the drive wheel 10 thus no force is exerted on the cam or the eccentric more. During a switch-on of the Auslδseanschlag 14 is released, so that the stored energy in the Einschaltergiespeicher 13 for rotating the camshaft 5 connected to the clamping shaft 1 and thus used to close the movable contact of the circuit breaker. In this case, the tensioning shaft 1 and the parts connected to it rotate in the direction of the arrow 19 of Figure 3 until the Einschaltergiespeicher 13 is completely relaxed. The drive wheel 10 with the pawl 9 remains in the position of Figure 3. As a result, no energy is transferred to the drive wheel and the drive during the switching process. If a new clamping operation is carried out after the switching operation, the drive wheel 10 is likewise moved in the direction of the arrow 19 via the drive. The pawl is thereby further deflected on the fixed stop element 7 and moves along it until, due to the rotation of the drive wheel, the pawl is no longer in contact with the fixed stop element and is rotated in the direction of the tensioning shaft by the force exerted by the spring element 11 until the pawl rests against the position pin 18. The position pin 13 prevents the pawl 9 from resting on the tensioning shaft 1 during the further rotational movement of the drive wheel 10. As a result of the further rotational movement, the pawl 9 comes into contact with the driver 8, so that the drive wheel 10 and the tensioning shaft 1 are coupled again and the switch-on energy store 13 is again tensioned.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Spannwelle1 tensioning shaft
2 Erstes Ende2 First end
3 Exzenter3 eccentrics
4 Zweites Ende4 Second end
5 Kurvenscheibe5 cam
6 Gehäuseteil6 housing part
6a, 6b Kugellager6a, 6b ball bearings
7 Festes Anschlagelement7 Fixed stop element
8 Mitnehmer8 drivers
9 Klinke9 pawl
10 Antriebsrad10 drive wheel
11 Federelement11 spring element
12 Achse12 axis
13 Einschaltenergiespeicher13 turn-on energy storage
14 Auslöseanschlag14 trigger stop
15 Ende Klinke15 end latch
16 Kontaktfläche16 contact area
17 Anschlag17 stop
18 Positionsstift18 position pin
19 Pfeil 19 arrow

Claims

Patentansprüche claims
1. Spannvorrichtung für einen Einschaltenergiespeicher (13) eines Leistungsschalters, - bei der eine mittels eines Antriebsrades (10) drehbare Spannwelle (1) zum Spannen des Einschaltenergiespeichers (13) fest jeweils mit einem Exzenter (3) und mit einer Kurvenscheibe (5) verbunden ist, die einen Auslöseanschlag (14) aufweist, und - bei der das Antriebsrad (10) über eine Kupplung1. Clamping device for a switch-on energy storage (13) of a circuit breaker, - in which one by means of a drive wheel (10) rotatable clamping shaft (1) for clamping the switch-on energy storage (13) fixedly connected to an eccentric (3) and with a cam (5) is, which has a trigger stop (14), and - in which the drive wheel (10) via a coupling
(7,8,9,11,12,18) mit der Spannwelle (1) gekoppelt ist, d a d u r c h g e k e n n z e i c h n e t, dass die Kupplung (7,8,9,11,12,18) eine Klinkenanordnung (7,8,9,11,12,18) ist.(7,8,9,11,12,18) is coupled to the tensioning shaft (1), characterized in that the coupling (7,8,9,11,12,18) a pawl arrangement (7,8,9,11 , 12,18).
2. Spannvorrichtung nach Anspruch 1 , d a d u r c h g e k e n n z e i c h n e t, dass die Klinkenanordnung (7,8,9,11,12,18) eine am An- triebsrad (10) drehbar angeordnete Klinke (9) auf weist, und ein festes Anschlagelement (7) zur Steuerung der Klinke (9) vorgesehen ist.2. Clamping device according to claim 1, characterized in that the pawl arrangement (7,8,9,11,12,18) on a drive wheel (10) rotatably mounted pawl (9) has, and a fixed stop element (7) for Control of the pawl (9) is provided.
3. Spannvorrichtung nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t, dass das feste Anschlagelement (7) derart angeordnet ist, dass bei gespanntem Einschaltenergiespeicher (13) die Klinke (9) die Spannwelle (1) freigibt.3. Clamping device according to claim 2, characterized in that the fixed stop element (7) is arranged such that when the switch-on energy storage (13), the pawl (9) releases the clamping shaft (1).
4. Spannvorrichtung nach Anspruch 2 oder 3 , d a d u r c h g e k e n n z e i c h n e t, dass die Klinkenanordnung (7,8,9,11,12,18) einen mit der Spannwelle (1) fest verbundenen und mit der Klinke (9) zusammenwirkenden Mitnehmer (8) aufweist.4. Clamping device according to claim 2 or 3, characterized in that the latch arrangement (7,8,9,11,12,18) with a Clamping shaft (1) fixedly connected and with the pawl (9) cooperating carrier (8).
5. Spannvorrichtung nach einem der vorangehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t, dass die Klinkenanordnung (7,8,9,11,12,18) ein Federelement (11) aufweist.5. Clamping device according to one of the preceding claims, d a d u r c h e c e n e c e s in that the latch arrangement (7, 8, 9, 11, 12, 18) has a spring element (11).
6. Spannvorrichtung nach Anspruch 5, d a d u r c h g e k e n n z e i c h n e t, dass am Antriebsrad (10) ein Positionsstift (18) vorgesehen ist. 6. Clamping device according to claim 5, characterized in that a drive pin (18) is provided on the drive wheel (10).
EP05777787A 2005-08-10 2005-08-10 Tensioning apparatus Active EP1913615B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2005/001437 WO2007016883A1 (en) 2005-08-10 2005-08-10 Tensioning apparatus

Publications (2)

Publication Number Publication Date
EP1913615A1 true EP1913615A1 (en) 2008-04-23
EP1913615B1 EP1913615B1 (en) 2012-12-26

Family

ID=35588920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05777787A Active EP1913615B1 (en) 2005-08-10 2005-08-10 Tensioning apparatus

Country Status (9)

Country Link
US (1) US20120111707A1 (en)
EP (1) EP1913615B1 (en)
JP (1) JP2009505335A (en)
CN (1) CN101283425B (en)
DE (1) DE112005003726A5 (en)
ES (1) ES2399409T3 (en)
HK (1) HK1120921A1 (en)
MX (1) MX2008001890A (en)
WO (1) WO2007016883A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2998705B1 (en) * 2012-11-28 2015-02-13 Alstom Technology Ltd SPRING-TYPE CONTROL DEVICE PARTICULARLY FOR HIGH VOLTAGE OR MEDIUM VOLTAGE CIRCUIT BREAKER OR SWITCH
DE102017216804B4 (en) * 2017-09-22 2020-11-05 Siemens Aktiengesellschaft Tensioning gear for tensioning a storage spring of a spring storage drive
DE102017216805B4 (en) * 2017-09-22 2020-10-29 Siemens Aktiengesellschaft Tensioning gear for tensioning a storage spring of a spring storage drive

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689720A (en) * 1971-09-16 1972-09-05 Westinghouse Electric Corp Circuit breaker including spring closing means with means for moving a charging pawl out of engagement with a ratchet wheel when the spring means are charged
US3689721A (en) * 1971-09-16 1972-09-05 Westinghouse Electric Corp Circuit breaker including ratchet and pawl spring charging means and ratchet teeth damage preventing means
NZ283744A (en) * 1994-04-12 1998-02-26 Holec Holland Nv A device for tensioning the cut-in spring in actuator units for circuit breakers
DE19933637C1 (en) * 1999-07-17 2001-01-25 Noell Serv & Maschtechn Gmbh Tensioning device for electrical power switch drive spring uses cog drive with cog wheel mounted on switching shaft for tensioning drive spring via cooperating eccentric of switching shaft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007016883A1 *

Also Published As

Publication number Publication date
CN101283425B (en) 2011-03-09
HK1120921A1 (en) 2009-04-09
MX2008001890A (en) 2008-03-24
ES2399409T3 (en) 2013-04-01
WO2007016883A1 (en) 2007-02-15
DE112005003726A5 (en) 2008-07-10
US20120111707A1 (en) 2012-05-10
CN101283425A (en) 2008-10-08
JP2009505335A (en) 2009-02-05
EP1913615B1 (en) 2012-12-26

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