EP0282858A1 - Mechanical energy buffer without any latching force - Google Patents

Mechanical energy buffer without any latching force Download PDF

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Publication number
EP0282858A1
EP0282858A1 EP88103493A EP88103493A EP0282858A1 EP 0282858 A1 EP0282858 A1 EP 0282858A1 EP 88103493 A EP88103493 A EP 88103493A EP 88103493 A EP88103493 A EP 88103493A EP 0282858 A1 EP0282858 A1 EP 0282858A1
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EP
European Patent Office
Prior art keywords
rod
axis
bearing
spring
cage
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
EP88103493A
Other languages
German (de)
French (fr)
Other versions
EP0282858B1 (en
Inventor
Edmond Thuries
Michel Perret
Jean-Paul Masson
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.)
Alstom Holdings SA
Original Assignee
Alstom SA
GEC Alsthom SA
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Filing date
Publication date
Application filed by Alstom SA, GEC Alsthom SA filed Critical Alstom SA
Priority to AT88103493T priority Critical patent/ATE89434T1/en
Publication of EP0282858A1 publication Critical patent/EP0282858A1/en
Application granted granted Critical
Publication of EP0282858B1 publication Critical patent/EP0282858B1/en
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
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3031—Means for locking the spring in a charged state
    • 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
    • H01H3/3031—Means for locking the spring in a charged state
    • H01H2003/3036—Means for locking the spring in a charged state using of balls or rollers in the locking device
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/11—Tripping mechanism

Definitions

  • the present invention relates to a mechanical energy storage device, by means of springs and intended in particular for the actuation of an electric circuit breaker.
  • circuit breakers for example by means of a compression spring.
  • the energy necessary for the operation is then stored in the banded spring.
  • the spring is kept bandaged by a more or less complex hooking device, which necessarily comprises a hooking member immobilizing a wheel or a cam.
  • This patent FR-1,588,485 describes a spring device, impulse-controlled, for the operation of electrical devices, in particular switch and disconnector, in a long time by compared to the duration of said pulse.
  • This device comprises a spring driving, via a cable and a cam, the trigger control shaft. Its rearming is carried out using a shaft provided with a non-return means comprising in particular a ratchet wheel cooperating with a ratchet carrying at its end a hooking roller and driving, by means of a reduction kinematic chain. , said control shaft in the opposite direction to said triggering.
  • the pulse causes the permanent locking of the non-return means and allows the completion of the trigger.
  • the fastening member and the wheel exert a mutual force between them which it is necessary to overcome to unlock the wheel and allow the spring to relax. This effort is all the greater the greater the energy stored in the springs. The greater this effort, the greater the energy of the triggering mechanism to overcome it.
  • the subject of the invention is a device for storing mechanical energy at zero latching force, comprising a first rod sliding along an axis, and subjected to the axial action of a first spring, this rod being integral, at its first end, hooking means and being coupled, at its second end, to energy storage means, the hooking means comprising a rod provided with a transverse bore in which, in the engaged position, is introduces a hooking member controlled by an electromagnet, characterized in that the energy storage means comprise a second rod sliding along the same axis, and subjected to the axial action of a second spring, the free end, which faces the free end of the first rod, is connected to means for coupling to this first rod and for locking in an engaged position of the hooking member.
  • Such a device has the great advantage of being very simple to implement.
  • FIG 1 there is a first rod 10 provided at its first end with a flange 11, and at its second end with a nozzle 12.
  • This first rod 19 is slidably mounted along an axis ⁇ inside of a bore 13 pierced in a cover 15 which closes a cage 16 fixed at its first end: this cage is here square in shape, and with axis of symmetry the axis ⁇ . It ends at its second end with a flared part 28.
  • the first end of this rod 10 is secured to hooking means constituted here by a rod 18, for controlling the circuit breaker for example, provided with a transverse bore 10 in which, in the engaged position, is introduced a hooking member 120 controlled, for example, by an electromagnet 121 which keeps the first rod 10 in a fixed position when the first spring 17 is banded.
  • hooking means constituted here by a rod 18, for controlling the circuit breaker for example, provided with a transverse bore 10 in which, in the engaged position, is introduced a hooking member 120 controlled, for example, by an electromagnet 121 which keeps the first rod 10 in a fixed position when the first spring 17 is banded.
  • a second rod 20 is provided at its first end which faces the second end of the first rod, with a flange 21.
  • This second rod 20 is slidably mounted along the axis ⁇ , inside a bore 22 drilled in a fixed frame 23.
  • a second spring 34 with a flange for example, is arranged around this rod 20 while being fixed on the one hand to the flange 21, and on the other hand to the frame 23.
  • Two arms 24 and 24A provided at their first ends with bearings 25, 26 and 25A, 26A, for example with balls, whose axes of rotation 29 and 29A are perpendicular to the axis ⁇ , are mobile, at their second ends, around two axes 27 and 27A, in directions parallel to axes 29 and 29A, which are located symmetrically with respect to the axis ⁇ and integral with the external part of the flange 21.
  • the end piece 12 is formed by several symmetrical bearing surfaces with respect to the axis ⁇ , being successively: two first planar bearing surfaces 31 and 31A parallel to the rolling surfaces 30 and 30A, two inclined bearing surfaces 33 and 33A towards the axis ⁇ , and two second planar bearings 32 and 32A parallel to the first.
  • the relative ball bearings at each axis 29 (29A) respectively consist of two first bearings 25 (25A) which roll on the rolling surface 30 (30A) inside the cage 16, surrounding a bearing 26 (26A), of smaller diameter, which rolls on the outer surface of the nozzle 12, that is to say on the surfaces 31, 33 and 32 (31A, 33A and 32A).
  • the second spring 34 is self-locked: in fact the first bearings 25 and 25A rest inside the flared part 28 of the cage 16, and the second bearings 26 and 26A rest on the first flat bearings 31 and 31A respectively, which prevents movement of these bearings in the direction 40 shown in FIG. 2.
  • the coil 121 is supplied, the latching member 120 is then released.
  • the first spring 17 begins to relax by driving the rod 10 in the direction of the arrow 40. Without any thrust which would be due to the second spring 34, the bearings 25, 25A, 26, 26A pass from their first position as shown in Figure 1, in their second position shown in Figure 2. The second bearings 26 and 26A, part of the outer surface then rests on the inclined surfaces 33 and 33A used to transmit to the first rod 10 the thrust of the second spring 34 .
  • the device of the invention therefore has the great advantage of allowing the storage of a surplus of mechanical energy due to the second spring 34 without the latter acting on the attachment. In fact, in the engaged position, only the first spring 17 presses on the coupling, the second spring 34 being blocked by the rolling system.
  • the invention therefore makes it possible to simplify the mechanical controls of such a device: the thrust due to the first spring being weak, the attachment is simplified and can be direct, which makes it possible to avoid stages of reduction of the stored energy . In addition, this energy can be very important.
  • the device of the invention can be used to perform the switching on and off functions of mechanical controls.

Landscapes

  • Springs (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Materials For Medical Uses (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Hybrid Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Mechanical Operated Clutches (AREA)
  • Prostheses (AREA)

Abstract

La présente invention concerne un dispositif de stockage d'énergie mécanique à force d'accrochage nulle, comprenant une première tige (10) coulissant selon un axe Δ , et soumise à l'action axiale d'un premier ressort (17), cette tige (10) étant solidaire, à sa première extrémité, de moyens d'accrochage et étant couplée, à sa seconde extrémité, à des moyens de stockage d'énergie, les moyens de stockage d'énergie comprennent une deuxième tige (20) coulissant selon le même axe Δ , et soumise à l'action axiale d'un deuxième ressort (34), dont l'extrémité libre, qui fait face à l'extrémité libre de la première tige, est reliée à des moyens de couplage à cette première tige (10) et de blocage en une position enclenchée de l'organe d'accrochage (120). Application au domaine des disjoncteurs électriques.The present invention relates to a mechanical energy storage device with zero latching force, comprising a first rod (10) sliding along an axis Δ, and subjected to the axial action of a first spring (17), this rod (10) being secured, at its first end, to hooking means and being coupled, at its second end, to energy storage means, the energy storage means comprise a second rod (20) sliding along the same axis Δ, and subjected to the axial action of a second spring (34), the free end of which faces the free end of the first rod, is connected to means for coupling to this first rod (10) and locking in an engaged position of the hooking member (120). Application to the field of electric circuit breakers.

Description

La présente invention est relative à un dispositif de stockage d'énergie mécanique, au moyen de ressorts et destiné en particulier à l'actionnement d'un disjoncteur électrique.The present invention relates to a mechanical energy storage device, by means of springs and intended in particular for the actuation of an electric circuit breaker.

On sait que l'actionnement mécanique des disjoncteurs est réali­sé par exemple au moyen d'un ressort de compression. L'énergie nécessaire à la manoeuvre est alors stockée dans le ressort bandé. Le ressort est maintenu bandé grâce à un dispositif d'accrochage plus ou moins complexe, qui comprend nécessairement un organe d'accrochage immobilisant une roue ou une came.We know that the mechanical actuation of circuit breakers is achieved for example by means of a compression spring. The energy necessary for the operation is then stored in the banded spring. The spring is kept bandaged by a more or less complex hooking device, which necessarily comprises a hooking member immobilizing a wheel or a cam.

On se référera à cet égard au brevet français n° 1 588 485. Ce brevet FR-1 588 485 décrit un dispositif à ressort, commandé par im­pulsion, pour la manoeuvre d'appareils électriques, notamment inter­rupteur et sectionneur, en un temps long par rapport à la durée de ladite impulsion. Ce dispositif comporte un ressort entraînant, par l'intermédiaire d'un câble et d'une came, l'arbre de commande du dé­clenchement. Son réarmement est effectué à l'aide d'un arbre muni d'un moyen antiretour comportant notamment une roue à rochet coopérant avec un cliquet portant à son extrémité un galet d'accrochage et entraî­nant, par l'intermédiaire d'une chaîne cinématique démultiplicatrice, ledit arbre de commande en sens inverse dudit déclenchement. L'impul­sion provoque le verrouillage permanent du moyen antiretour et autorise l'achèvement du déclenchement.Reference is made in this regard to French patent No. 1,588,485. This patent FR-1,588,485 describes a spring device, impulse-controlled, for the operation of electrical devices, in particular switch and disconnector, in a long time by compared to the duration of said pulse. This device comprises a spring driving, via a cable and a cam, the trigger control shaft. Its rearming is carried out using a shaft provided with a non-return means comprising in particular a ratchet wheel cooperating with a ratchet carrying at its end a hooking roller and driving, by means of a reduction kinematic chain. , said control shaft in the opposite direction to said triggering. The pulse causes the permanent locking of the non-return means and allows the completion of the trigger.

L'organe d'accrochage et la roue exercent entre eux un effort mutuel qu'il est nécessaire de vaincre pour débloquer la roue et per­mettre la détente du ressort. Cet effort est d'autant plus grand que l'énergie stockée dans les ressorts est importante. Plus cet effort est important et plus l'énergie du mécanisme de déclenchement doit être grande pour le vaincre.The fastening member and the wheel exert a mutual force between them which it is necessary to overcome to unlock the wheel and allow the spring to relax. This effort is all the greater the greater the energy stored in the springs. The greater this effort, the greater the energy of the triggering mechanism to overcome it.

Or, il est souhaitable d'utiliser un mécanisme à faible énergie.However, it is desirable to use a low energy mechanism.

Il est également souhaité de pouvoir augmenter la quantité d'énergie stockée (par exemple en utilisant plusieurs ressorts et/ou des ressorts plus puissants), sans augmenter l'effort d'accrochage.It is also desired to be able to increase the amount of energy stored (for example by using several springs and / or more powerful springs), without increasing the attachment force.

Ce but est atteint par le dispositif de l'invention qui permet de stocker une énergie mécanique avec une force d'accrochage nulle.This object is achieved by the device of the invention which allows store mechanical energy with zero latching force.

En effet l'invention a pour objet un dispositif de stockage d'énergie mécanique à force d'accrochage nulle, comprenant une pre­mière tige coulissant selon un axe , et soumise à l'action axiale d'un premier ressort, cette tige étant solidaire, à sa première extrémité, de moyens d'accrochage et étant couplée, à sa seconde extrémité, à des moyens de stockage d'énergie, les moyens d'accrochage comprenant une tige munie d'un alésage transversal dans lequel, en position enclenchée, est introduit un organe d'accrochage commandé par un électro-aimant, caractérisé en ce que les moyens de stockage d'énergie comprennent une deuxième tige coulissant selon le même axe , et soumise à l'action axiale d'un deuxième ressort, dont l'extrémité libre, qui fait face à l'extrémité libre de la première tige, est reliée à des moyens de couplage à cette première tige et de blocage en une position enclenchée de l'organe d'accrochage.The subject of the invention is a device for storing mechanical energy at zero latching force, comprising a first rod sliding along an axis, and subjected to the axial action of a first spring, this rod being integral, at its first end, hooking means and being coupled, at its second end, to energy storage means, the hooking means comprising a rod provided with a transverse bore in which, in the engaged position, is introduces a hooking member controlled by an electromagnet, characterized in that the energy storage means comprise a second rod sliding along the same axis, and subjected to the axial action of a second spring, the free end, which faces the free end of the first rod, is connected to means for coupling to this first rod and for locking in an engaged position of the hooking member.

Un tel dispositif présente le grand avantage d'être d'une grande simplicité de mise en oeuvre.Such a device has the great advantage of being very simple to implement.

Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre, à titre d'exemple non limitatif, en référence aux figures annexées sur lesquelles :

  • - la figure 1 est une vue schématique du dispositif de l'invention, prêt à fonctionner, les ressorts étant bandés ;
  • - la figure 2 est une vue schématique du même dispositif en cours de fonctionnement ;
  • - la figure 3 est une vue en coupe selon la ligne III-III de la figu­re 2.
The characteristics and advantages of the invention will become apparent from the description which follows, by way of nonlimiting example, with reference to the appended figures in which:
  • - Figure 1 is a schematic view of the device of the invention, ready to operate, the springs being bandaged;
  • - Figure 2 is a schematic view of the same device during operation;
  • - Figure 3 is a sectional view along line III-III of Figure 2.

Dans la figure 1, on distingue une première tige 10 munie à sa première extrémité d'une collerette 11, et à sa seconde extrémité d'un embout 12. Cette première tige 19 est montée coulissante selon un axe Δ à l'intérieur d'un alésage 13 percé dans un couvercle 15 qui ferme une cage 16 fixe à sa première extrémité : cette cage est ici de forme carrée, et à pour axe de symétrie l'axe Δ . Elle se termine en sa deuxième extrémité par une partie évasée 28.In Figure 1, there is a first rod 10 provided at its first end with a flange 11, and at its second end with a nozzle 12. This first rod 19 is slidably mounted along an axis Δ inside of a bore 13 pierced in a cover 15 which closes a cage 16 fixed at its first end: this cage is here square in shape, and with axis of symmetry the axis Δ. It ends at its second end with a flared part 28.

Un premier ressort 17, à boudin par exemple, est disposé autour de cette tige 10, en étant fixé d'une part à la collerette 11 et d'autre part à la partie extérieure de la cage 16.A first spring 17, with a flange for example, is arranged around of this rod 10, being fixed on the one hand to the flange 11 and on the other hand to the outer part of the cage 16.

La première extrémité de cette tige 10 est solidaire de moyens d'accrochage constitués ici d'une tige 18, de commande de disjoncteur par exemple, munie d'un alésage transversal 10 dans lequel, en posi­tion enclenchée, est introduit un organe d'accrochage 120 commandé, par exemple, par un électro-aimant 121 qui permet de maintenir la première tige 10 en position fixe lorsque le premier ressort 17 est bandé.The first end of this rod 10 is secured to hooking means constituted here by a rod 18, for controlling the circuit breaker for example, provided with a transverse bore 10 in which, in the engaged position, is introduced a hooking member 120 controlled, for example, by an electromagnet 121 which keeps the first rod 10 in a fixed position when the first spring 17 is banded.

Une seconde tige 20 est munie à sa première extrémité qui fait face à la seconde extrémité de la première tige, d'une collerette 21. Cette deuxième tige 20 est montée coulissante selon l'axe Δ , à l'in­térieur d'un alésage 22 percé dans un bâti fixe 23.A second rod 20 is provided at its first end which faces the second end of the first rod, with a flange 21. This second rod 20 is slidably mounted along the axis Δ, inside a bore 22 drilled in a fixed frame 23.

Un deuxième ressort 34, à boudin par exemple, est disposé autour de cette tige 20 en étant fixé d'une part à la collerette 21, et d'autre part au bâti 23.A second spring 34, with a flange for example, is arranged around this rod 20 while being fixed on the one hand to the flange 21, and on the other hand to the frame 23.

Deux bras 24 et 24A, munis à leurs premières extrémités de rou­lements 25, 26 et 25A, 26A, à billes par exemple, dont les axes de rotation 29 et 29A sont perpendiculaires à l'axe Δ , sont mobiles, en leurs secondes extrémités, autour de deux axes 27 et 27A, de direc­tions parallèles aux axes 29 et 29A, qui sont situés symétriquement par rapport à l'axe Δ et solidaires de la partie extérieure de la collerette 21.Two arms 24 and 24A, provided at their first ends with bearings 25, 26 and 25A, 26A, for example with balls, whose axes of rotation 29 and 29A are perpendicular to the axis Δ, are mobile, at their second ends, around two axes 27 and 27A, in directions parallel to axes 29 and 29A, which are located symmetrically with respect to the axis Δ and integral with the external part of the flange 21.

Les extrémités libres de la première (10) et de la deuxième (20) tige se faisant face, les roulements 25, 26 et 25A, 26A peuvent rouler entre l'embout 12 et respectivement deux portées 30 et 30A de la cage 16 qui sont planes, parallèles et symétriques par rapport à l'axe Δ . Ces portées forment donc deux surfaces de roulement ou de guidage qui se terminent par la partie évasée 28.The free ends of the first (10) and second (20) rod facing each other, the bearings 25, 26 and 25A, 26A can roll between the end piece 12 and respectively two bearing surfaces 30 and 30A of the cage 16 which are planes, parallel and symmetrical with respect to the axis Δ. These bearing surfaces therefore form two rolling or guiding surfaces which end in the flared part 28.

Comme représenté à la figure 1, l'embout 12 est formé de plu­sieurs portées symétriques par rapport à l'axe Δ , soient successivement : deux premières portées planes 31 et 31A parallèles aux surfaces de roulement 30 et 30A, deux portées 33 et 33A inclinées vers l'axe Δ , et deux secondes portées planes 32 et 32A parallèles aux premières.As shown in FIG. 1, the end piece 12 is formed by several symmetrical bearing surfaces with respect to the axis Δ, being successively: two first planar bearing surfaces 31 and 31A parallel to the rolling surfaces 30 and 30A, two inclined bearing surfaces 33 and 33A towards the axis Δ, and two second planar bearings 32 and 32A parallel to the first.

Comme représenté à la figure 3, les roulements à billes relatifs à chaque axe 29 (29A) sont respectivement constitués de deux premiers roulements 25 (25A) qui roulent sur la surface de roulement 30 (30A) intérieure à la cage 16, entourant un roulement 26 (26A), de plus petit diamètre, qui roule sur la surface extérieure de l'embout 12 c'est-à-­dire sur les portées 31, 33 et 32 (31A, 33A et 32A).As shown in Figure 3, the relative ball bearings at each axis 29 (29A) respectively consist of two first bearings 25 (25A) which roll on the rolling surface 30 (30A) inside the cage 16, surrounding a bearing 26 (26A), of smaller diameter, which rolls on the outer surface of the nozzle 12, that is to say on the surfaces 31, 33 and 32 (31A, 33A and 32A).

En position d'enclenchement, comme représenté à la figure 1, le ressort 17 est comprimé de telle sorte que l'organe 120 soit situé à l'intérieur de l'alésage 19.In the engaged position, as shown in FIG. 1, the spring 17 is compressed so that the member 120 is located inside the bore 19.

Dans cette position le deuxième ressort 34 est auto-bloqué :
en effet les premiers roulements 25 et 25A reposent à l'intérieur de la partie évasée 28 de la cage 16, et les seconds roulements 26 et 26A reposent sur les premières portées planes respectivement 31 et 31A, ce qui interdit un mouvement de ces roulements dans la direction 40 repré­sentée à la figure 2.In this position the second spring 34 is self-locked:
in fact the first bearings 25 and 25A rest inside the flared part 28 of the cage 16, and the second bearings 26 and 26A rest on the first flat bearings 31 and 31A respectively, which prevents movement of these bearings in the direction 40 shown in FIG. 2.

En cours de fonctionnement comme représenté aux figures 2 et 3, les ressorts 17 et 34 se sont détendus. Les quatre premiers rouleme­nts 25 (25A) reposent alors sur la surface de roulement 30 (30A), et le second roulement 26 (26A) sur la portée inclinée 33 (33A).During operation as shown in Figures 2 and 3, the springs 17 and 34 are relaxed. The first four bearings 25 (25A) then rest on the rolling surface 30 (30A), and the second bearing 26 (26A) on the inclined surface 33 (33A).

Lors du déclenchement c'est-à-dire du passage d'une position à l'autre, la bobine 121 est alimentée, l'organe d'accrochage 120 est alors libéré.During the triggering, that is to say the passage from one position to the other, the coil 121 is supplied, the latching member 120 is then released.

Le premier ressort 17 commence à se détendre en entraînant la tige 10 dans le sens de la flèche 40. Sans aucune poussée qui serait dûe au second ressort 34, les roulements 25, 25A, 26, 26A passent de leur première position telle que représentée à la figure 1, à leur seconde position représentée à la figure 2. Les seconds roulements 26 et 26A dont une partie de la surface extérieure repose alors sur les portées inclinées 33 et 33A permettent de transmettre à la première tige 10 la poussée du deuxième ressort 34.The first spring 17 begins to relax by driving the rod 10 in the direction of the arrow 40. Without any thrust which would be due to the second spring 34, the bearings 25, 25A, 26, 26A pass from their first position as shown in Figure 1, in their second position shown in Figure 2. The second bearings 26 and 26A, part of the outer surface then rests on the inclined surfaces 33 and 33A used to transmit to the first rod 10 the thrust of the second spring 34 .

Les poussées de ces seconds roulements 26 et 26A sur les portées de l'embout 12 freinent très peu le mouvement initial de la tige 10 puisqu'il y a déplacement des premiers roulements 25 et 25A sur les surfaces 30 et 30A.The thrusts of these second bearings 26 and 26A on the bearing surfaces of the nozzle 12 very little brake the initial movement of the rod 10 since there is displacement of the first bearings 25 and 25A on the surfaces 30 and 30A.

Le dispositif de l'invention présente donc le grand avantage de permettre le stockage d'un surplus d'énergie mécanique dûe au deuxième ressort 34 sans que cette dernière n'agisse sur l'accrochage. En effet, en position enclenchée, seul le premier ressort 17 appuie sur l'accro­chage, le deuxième ressort 34 étant bloqué grâce au système à roulement.The device of the invention therefore has the great advantage of allowing the storage of a surplus of mechanical energy due to the second spring 34 without the latter acting on the attachment. In fact, in the engaged position, only the first spring 17 presses on the coupling, the second spring 34 being blocked by the rolling system.

L'invention permet donc, de simplifier les commandes mécaniques d'un tel dispositif : la poussée dûe au premier ressort étant faible, l'accrochage est simplifié et peut être direct ce qui permet d'éviter des étages de démultiplication de l'énergie emmagasinée. De plus cette éner­gie peut être très importante.The invention therefore makes it possible to simplify the mechanical controls of such a device: the thrust due to the first spring being weak, the attachment is simplified and can be direct, which makes it possible to avoid stages of reduction of the stored energy . In addition, this energy can be very important.

Le dispositif de l'invention peut être utilisé pour réaliser des fonctions d'enclenchement et de déclenchement de commandes mécaniques.The device of the invention can be used to perform the switching on and off functions of mechanical controls.

Il est bien entendu que la présente invention n'a été décrite et représentée qu'à titre d'exemple préférentiel et que l'on pourra rempla­cer ses éléments constitutifs par des éléments équivalents sans pour autant, sortir du cadre de l'invention.It is understood that the present invention has only been described and shown as a preferred example and that its constituent elements can be replaced by equivalent elements without departing from the scope of the invention.

Claims (10)

1/ Dispositif de stockage d'énergie mécanique à force d'accrochage nulle, comprenant une première tige (10) coulissant selon un axe Δ, et soumise à l'action axiale d'un premier ressort (17), cette tige (10) étant solidaire, à sa première extrémité, de moyens d'accrochage et étant couplée, à sa seconde extrémité, à des moyens de stockage d'énergie, les moyens d'accrochage comprenant une tige (18) munie d'un alésage transversal (19) dans lequel, en position enclenchée, est introduit un organe d'accrochage (120) commandé par un électro-­aimant (121), caractérisé en ce que les moyens de stockage d'énergie comprennent une deuxième tige (20) coulissant selon le même axe Δ, et soumise à l'action axiale d'un deuxième ressort (34), dont l'extrémité libre, qui fait face à l'extrémité libre de la première tige, est reliée à des moyens de couplage à cette première tige (10) et de blocage en une position enclenchée de l'organe d'accrochage (120).1 / Mechanical energy storage device with zero latching force, comprising a first rod (10) sliding along an axis Δ, and subjected to the axial action of a first spring (17), this rod (10) being secured at its first end to latching means and being coupled at its second end to energy storage means, the latching means comprising a rod (18) provided with a transverse bore (19 ) into which, in the engaged position, is introduced a hooking member (120) controlled by an electromagnet (121), characterized in that the energy storage means comprise a second rod (20) sliding along the same axis Δ, and subjected to the axial action of a second spring (34), the free end of which faces the free end of the first rod, is connected to means for coupling to this first rod ( 10) and locking in an engaged position of the hooking member (120). 2/ Dispositif selon la revendication 1, caractérisé en ce que ces moyens de couplage et de blocage comprennent au moins un bras (24, 24A) muni à une première extrémité d'au moins un roulement (25, 25A, 26, 26A) d'axe de rotation perpendiculaire à l'axe Δ, mobile à une seconde extrémité autour d'un axe (27, 27A) de direction parallèle à l'axe de rotation de chaque roulement (25, 25A, 26, 26A), et solidaire de l'extrémité libre de la deuxième tige (20), et une cage (16) fixe, munie d'au moins une surface de roulement (30, 30A) parallèle à la direction de l'axe et des axes (29, 29A) de chaque roulement, qui se termine dans sa partie faisant face à la deuxième tige (20) par au moins une partie évasée (28), et en ce que la première tige (10) se termine en sa deuxième extrémité par un embout (12) muni d'au moins une première partie plane (31, 31A) parallèle à la surface de roulem-ment (30, 30A) et dont l'extrémité libre va en se rétrécissant ; de manière à ce que en position enclenchée de l'organe d'accrochage (120) chaque roulement soit compris entre cette portée plane (31, 31A) et la partie évasée (28) de la cage (16) de manière à bloquer le deuxième ressort (34).2 / Device according to claim 1, characterized in that these coupling and locking means comprise at least one arm (24, 24A) provided at a first end with at least one bearing (25, 25A, 26, 26A) d axis of rotation perpendicular to the axis Δ, movable at a second end about an axis (27, 27A) of direction parallel to the axis of rotation of each bearing (25, 25A, 26, 26A), and integral of the free end of the second rod (20), and a fixed cage (16), provided with at least one rolling surface (30, 30A) parallel to the direction of the axis and the axes (29, 29A ) of each bearing, which ends in its part facing the second rod (20) with at least one flared part (28), and in that the first rod (10) ends at its second end with a nozzle ( 12) provided with at least a first flat part (31, 31A) parallel to the rolling surface (30, 30A) and the free end of which is narrowing; so that in the engaged position of the latching member (120) each bearing is between this flat surface (31, 31A) and the flared part (28) of the cage (16) so as to block the second spring (34). 3/ Dispositif selon la revendication 2, caractérisé en ce que l'embout (12) de la première tige (10) comprend une second portée plane (32, 32A) parallèle à la première portée plane (31, 31A) séparée de la première portée plane par une portée (33, 33A) inclinée vers l'axe Δ.3 / Device according to claim 2, characterized in that the end piece (12) of the first rod (10) comprises a second bearing plane (32, 32A) parallel to the first plane bearing (31, 31A) separated from the first plane bearing by a bearing (33, 33A) inclined towards the axis Δ. 4/ Dispositif selon l'une quelconque des revendications 2 et 3, caractérisé en ce que chaque bras et muni à sa première extrémité d'au moins un premier roulement (25, 25A) qui roule sur une surface de roulement (30, 30A) et d'un deuxième roulement (26, 26A) pouvant rouler sur les portées de l'embout (12) de la première tige (10).4 / Device according to any one of claims 2 and 3, characterized in that each arm and provided at its first end with at least one first bearing (25, 25A) which rolls on a rolling surface (30, 30A) and a second bearing (26, 26A) which can roll on the bearing surfaces of the end piece (12) of the first rod (10). 5/ Dispositif selon la revendication 4, caractérisé en ce que deux premiers roulements (25, 25A) entourent un deuxième roulement (26, 26A) de plus petit diamètre.5 / Device according to claim 4, characterized in that two first bearings (25, 25A) surround a second bearing (26, 26A) of smaller diameter. 6/ Dispositif selon l'une quelconque des revendications 2 à 5, caractérisé en ce que la seconde tige (20) se termine par deux bras (24, 24A) articulés dont les axes de rotation (27, 27A) sont situés symétriquement par rapport à l'axe Δ, et en ce que la cage (16) et l'embout (12) sont respectivement de structures symétriques par rapport à l'axe Δ.6 / Device according to any one of claims 2 to 5, characterized in that the second rod (20) ends in two arms (24, 24A) articulated whose axes of rotation (27, 27A) are located symmetrically relative to to the Δ axis, and in that the cage (16) and the end piece (12) are respectively of symmetrical structures with respect to the Δ axis. 7/ Dispositif selon l'une quelconque des revendications 2 à 6, carac­térisé en ce que la cage (16) est fermée, à son extrémité qui fait face à la première tige (10), par un couvercle percé d'un alésage (13) centré sur l'axe Δ dans lequel peut coulisser la première tige (10).7 / Device according to any one of claims 2 to 6, characterized in that the cage (16) is closed, at its end which faces the first rod (10), by a cover pierced with a bore (13 ) centered on the axis Δ in which the first rod (10) can slide. 8/ Dispositif selon la revendication 7, caractérisé en ce que le premier ressort (17) est un ressort à boudin disposé autour de la première tige (10) entre une collerette (11) portée par la première tige (10) et perpendiculaire à celle-ci et le couvercle de la cage (16).8 / Device according to claim 7, characterized in that the first spring (17) is a coil spring arranged around the first rod (10) between a flange (11) carried by the first rod (10) and perpendicular to that -ci and the cage cover (16). 9/ Dispositif selon l'une quelconque des revendications 1 à 8, carac­térisé en ce que le deuxième ressort (34) est un ressort à boudin disposé autour de la deuxième tige (20) entre une collerette (21) portée par l'extrémité libre de celle-ci et un bâti fixe (23) muni d'un alésage (22) dans lequel cette tige coulisse.9 / Device according to any one of claims 1 to 8, characterized in that the second spring (34) is a coil spring arranged around the second rod (20) between a flange (21) carried by the free end of the latter and a fixed frame (23) provided with a bore (22) in which this rod slides. 10/ Utilisation du dispositif selon l'une quelconque des revendications précédentes dans un dispositif d'actinnement d'un disjoncteur dans lequel la tige (18) faisant partie des moyens d'accrochage est la tige de commande du disjoncteur.10 / Use of the device according to any one of the preceding claims in a device for actuating a circuit breaker in which the rod (18) forming part of the attachment means is the control rod of the circuit breaker.
EP88103493A 1987-03-17 1988-03-07 Mechanical energy buffer without any latching force Expired - Lifetime EP0282858B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103493T ATE89434T1 (en) 1987-03-17 1988-03-07 MECHANICAL ENERGY STORAGE WITHOUT LOCKING FORCE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8703637 1987-03-17
FR8703637A FR2612570A1 (en) 1987-03-17 1987-03-17 MECHANICAL ENERGY STORAGE DEVICE HAVING NULL ACCELERATION STRENGTH

Publications (2)

Publication Number Publication Date
EP0282858A1 true EP0282858A1 (en) 1988-09-21
EP0282858B1 EP0282858B1 (en) 1993-05-12

Family

ID=9349065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103493A Expired - Lifetime EP0282858B1 (en) 1987-03-17 1988-03-07 Mechanical energy buffer without any latching force

Country Status (10)

Country Link
US (1) US4841788A (en)
EP (1) EP0282858B1 (en)
JP (1) JPS63252326A (en)
CN (1) CN1010045B (en)
AT (1) ATE89434T1 (en)
BR (1) BR8801194A (en)
CA (1) CA1292030C (en)
DE (1) DE3880863T2 (en)
ES (1) ES2040768T3 (en)
FR (1) FR2612570A1 (en)

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US6722216B2 (en) * 2001-07-17 2004-04-20 Ansul Incorporated Booster actuator
FR2836277B1 (en) * 2002-02-19 2004-04-16 Alstom SPRING DRIVE MECHANISM FOR RECLINKED MOTION CIRCUIT BREAKER
US6657150B1 (en) * 2002-06-14 2003-12-02 Eaton Corporation Shorting switch and system to eliminate arcing faults in power distribution equipment
US7115828B2 (en) * 2004-04-30 2006-10-03 Southern States, Inc. Internally switched electric power interrupter
JP4933208B2 (en) * 2006-09-29 2012-05-16 河村電器産業株式会社 Circuit breaker
GB0622385D0 (en) * 2006-11-10 2006-12-20 Rolls Royce Plc Coupling
KR101132909B1 (en) * 2011-02-08 2012-04-03 엘에스산전 주식회사 Spring actuator for circuit breaker
US9038742B2 (en) * 2011-08-02 2015-05-26 Kidde Technologies, Inc. Suppressant actuator
US8757191B2 (en) * 2011-12-08 2014-06-24 Kiddie Technologies, Inc. High rate discharge (HRD) valve opening mechanism for a fire and explosion protection
US8776820B2 (en) * 2011-12-08 2014-07-15 Kidde Technologies, Inc. High rate discharge (HRD) valve incorporating a collet sleeve release mechanism
DE102016200587A1 (en) * 2016-01-19 2017-07-20 Siemens Aktiengesellschaft Tripping device for an electrical switching device and adjustment method
CN111547269B (en) * 2020-04-21 2021-06-15 哈尔滨工业大学 Asteroid exploration bomb spin-on release device

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FR1015641A (en) * 1949-02-25 1952-10-16 Hazemeijer Co High power circuit breaker with device for tensioning and releasing the closing spring
FR1588485A (en) * 1968-05-03 1970-04-17
FR2319188A1 (en) * 1975-07-24 1977-02-18 Hazemeijer Bv ELECTRICAL SWITCH
DE2943104A1 (en) * 1979-10-25 1981-05-21 Westfaelische Berggewerkschaft Mining equipment electrical switching contact - has interlocking parts, with thick ended fingers forced against disc by sloping housing surface

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Publication number Priority date Publication date Assignee Title
FR1015641A (en) * 1949-02-25 1952-10-16 Hazemeijer Co High power circuit breaker with device for tensioning and releasing the closing spring
FR1588485A (en) * 1968-05-03 1970-04-17
FR2319188A1 (en) * 1975-07-24 1977-02-18 Hazemeijer Bv ELECTRICAL SWITCH
DE2943104A1 (en) * 1979-10-25 1981-05-21 Westfaelische Berggewerkschaft Mining equipment electrical switching contact - has interlocking parts, with thick ended fingers forced against disc by sloping housing surface

Also Published As

Publication number Publication date
CN1030966A (en) 1989-02-08
ATE89434T1 (en) 1993-05-15
JPS63252326A (en) 1988-10-19
CN1010045B (en) 1990-10-17
DE3880863D1 (en) 1993-06-17
EP0282858B1 (en) 1993-05-12
BR8801194A (en) 1988-10-25
CA1292030C (en) 1991-11-12
DE3880863T2 (en) 1993-08-26
FR2612570A1 (en) 1988-09-23
US4841788A (en) 1989-06-27
ES2040768T3 (en) 1993-11-01
JPH0584006B2 (en) 1993-11-30

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