EP3569873B1 - Telescopic actuator with automatic locking - Google Patents

Telescopic actuator with automatic locking Download PDF

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Publication number
EP3569873B1
EP3569873B1 EP19175001.7A EP19175001A EP3569873B1 EP 3569873 B1 EP3569873 B1 EP 3569873B1 EP 19175001 A EP19175001 A EP 19175001A EP 3569873 B1 EP3569873 B1 EP 3569873B1
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EP
European Patent Office
Prior art keywords
obstacles
rod
piston
retracted
blades
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.)
Active
Application number
EP19175001.7A
Other languages
German (de)
French (fr)
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EP3569873A1 (en
Inventor
Gilbert Lecourtier
Arnaud LE BRETON
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.)
Safran Landing Systems SAS
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Safran Landing Systems SAS
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Publication date
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Publication of EP3569873A1 publication Critical patent/EP3569873A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1466—Hollow piston sliding over a stationary rod inside the cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B2015/268—Fluid supply for locking or release independent of actuator pressurisation

Definitions

  • the invention relates to a telescopic actuator with automatic locking.
  • the invention relates to a telescopic actuator equipped with a device for locking in position two movable elements relative to one another in an axial direction, for example a rod mounted to slide telescopically in a cylinder. Some actuators are fitted with a device for locking the rod in position, in particular in the retracted or extended position.
  • Claw locking devices comprise on the one hand a sleeve, most often installed on the rod, and the tubular wall of which is cut to form a certain number of elastically deformable claws which extend cantilevered in an axial direction. being terminated by hooks, and on the other hand an anchoring part provided on the cylinder, comprising an annular recess to receive the hooks.
  • the anchoring part has a step to bend the claws when the step passes under the hooks of the claws.
  • the step is followed by an annular recess in which the hooks engage to allow the claws to return to the rest position once the hooks have passed the step.
  • a locking piston which has been pushed against a return spring by the hooks when they pass over the step then moves axially to cover the hooks of the claws and thus prevent bending thereof, so that the hooks are held captive in the annular recess, which locks the actuator rod in position in the cylinder.
  • Segment locking devices for their part comprise segments mounted to move radially on the cylinder between a retracted position in which the rod is free to slide in the cylinder and an engaged position in which the segments are pushed by a piston, itself pushed by a spring, to enter a housing provided on the rod or on the associated piston. Once the rings are engaged, the piston passes over the rings to prevent them from retracting, and thus lock the rod in position on the cylinder.
  • the locking depends on the movement of a locking piston.
  • the disengagement of the locking members (hooks of the claws, segments) when the locking piston is retracted is allowed by slopes formed on the parts in contact making it possible to push back the locking members when the rod is moved in the cylinder.
  • GB 1 032 243 , US 2,702,024 and US 3,315,568 describe telescopic actuators according to the prior art.
  • the invention aims to provide a telescopic actuator equipped with an automatic locking device without a locking piston.
  • a telescopic actuator comprising a cylinder having a closed end and an open end for the passage. a hollow rod mounted to slide axially in the cylinder.
  • the actuator comprises a central support which extends from the closed end of the cylinder inside the rod and which carries obstacles that are radially movable between a retracted position leaving free sliding of the rod and a projecting position in which the obstacles are engaged in a groove of the rod to axially lock the rod relative to the cylinder, the sides of the obstacles and of the groove being shaped to prevent any removal of the obstacles by displacement of the rod, the obstacles being arranged at the end of resilient blades extending axially and arranged to return the obstacles from the retracted position to the protruding position, the central support carrying controlled means for bending the blades to cause the obstacles to be withdrawn towards the retracted position.
  • the locking is ensured automatically by the simple engagement of the obstacles in the groove of the rod under the action of the blades, the obstacles being held in position by the blades without it being necessary to confirm this engagement by a locking piston. . Any attempt to move the rod will then be blocked by the cooperation of the obstacles with the sides of the groove. Unlocking requires the prior control of the bending means of the blades, which disengages the obstacles, allowing the free movement of the rod.
  • the controlled means for bending the blades comprise an unlocking piston mounted to slide axially in the central support between a rest position in which the unlocking piston is remote from obstacles, and an unlocking position in which a hollow end conical of the unlocking piston cooperates with fingers integral with each of the obstacles to cause the bending of the blades and therefore the withdrawal of the obstacles from the protruding position to the retracted position.
  • the telescopic actuator of the invention comprises a cylinder 1 closed at one end by a sealed bottom 2 and at the other end by a drilled bottom 3 to allow a rod 4 integral with a piston 5 mounted to slide tightly to pass through the cylinder 1 along an X axis to define a hydraulic retraction chamber 6 and a hydraulic extension chamber 7.
  • the displacement of the rod 4 relative to the cylinder 1 is obtained by pressurizing one or the other of the chambers.
  • the rod 4 and the piston 5 are hollow and define an internal axial housing 8 having, at the level of the piston 5, a groove 9 with flanks substantially perpendicular to the axis X.
  • the actuator further comprises a central support 10 which extends from the sealed bottom 2 in an axial direction and onto which is screwed a locking sleeve 11, more especially visible at the figure 2 , which extends inside the axial housing 8 of the rod / piston assembly.
  • the locking sleeve 11 has a generally tubular shape terminated on one side by a bottom 12 and on the other side by a threaded end piece 13 intended to be screwed onto the central support 10.
  • the locking sleeve 11 has a tubular wall in which longitudinal blades 14 are cut to each have a first end integral with the locking sleeve 11 and a free end carrying an obstacle 15 which projects outwardly from the locking sleeve 11 when the blades 14 are at the side. idle state, as shown here.
  • a finger 16 extends longitudinally from each obstacle 15 inside the locking sleeve 11.
  • the blades 14 can flex inwardly of the locking sleeve 11 so that the obstacles 15 are returned radially to a retracted position in which they do not protrude from the outer surface of the locking sleeve 11. The blades 14 then exert a return force of the obstacles 15 towards the protruding position.
  • an unlocking piston 20 is mounted to slide tightly in the central support 10 to define there an unlocking chamber 21 which is pressurized to cause the movement of the unlocking piston 20 towards an unlocking position in which a tapered hollow end 22 of the piston cooperates with the fingers 16 to force the blades 14 to flex and thus retract the obstacles 15, so that the rod 4 is released and can slide freely, as illustrated in figure 3 .
  • a return spring 23 moves the unlocking piston 20 to a rest position in which the unlocking piston 20 is remote from the fingers 16, as illustrated in FIG. figure 1 .
  • the rod 4 is automatically locked as soon as it reaches the locking position in which the groove 9 faces the obstacles 15.
  • the obstacles 15 remain retracted by being pressed against the surface internal of the axial housing 8 of the rod 4.
  • the rod 4 comes out until the bent blades 14 push the obstacles 15 towards the protruding position in the groove 9, as soon as that -this passes opposite the obstacles 15.
  • the obstacles 15 have returned to the projecting position under the action of the blades, since the rod 4 and the piston 5 are no longer facing each other obstacles 15.
  • the invention has here been described in application to a hydraulic actuator, the invention may also be applied to an electromechanical actuator or of hybrid technology.
  • the actuation of the unlocking piston could for example be provided by a simple electromagnet.
  • the locking position is an intermediate position between the retracted position and the extended position of the actuator, the locking device of the invention can be used for ensure locking in one of these two extreme positions.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Description

L'invention concerne un actionneur télescopique à verrouillage automatique.The invention relates to a telescopic actuator with automatic locking.

ARRIERE PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

L'invention est relative à un actionneur télescopique équipé d'un dispositif de verrouillage en position de deux éléments mobiles relativement l'un à l'autre selon une direction axiale, par exemple une tige montée pour coulisser télescopiquement dans un cylindre. Certains actionneurs sont équipés d'un dispositif de verrouillage en position de la tige, en particulier en position rentrée ou sortie.The invention relates to a telescopic actuator equipped with a device for locking in position two movable elements relative to one another in an axial direction, for example a rod mounted to slide telescopically in a cylinder. Some actuators are fitted with a device for locking the rod in position, in particular in the retracted or extended position.

Les dispositifs de verrouillage à griffes comportent d'une part un manchon, le plus souvent installé sur la tige, et dont la paroi tubulaire est découpée pour former un certain nombre de griffes élastiquement déformables qui s'étendent en porte à faux selon une direction axiale en étant terminées par des crochets, et d'autre part une partie d'ancrage ménagée sur le cylindre, comportant un retrait annulaire pour recevoir les crochets. La partie d'ancrage comporte un redan pour faire fléchir les griffes au passage du redan sous les crochets des griffes. Le redan est suivi d'un retrait annulaire dans lequel les crochets s'engagent pour permettre aux griffes de revenir en position de repos une fois que les crochets ont passé le redan. Un piston de verrouillage qui a été repoussé à l'encontre d'un ressort de rappel par les crochets lors de leur passage par-dessus le redan se déplace alors axialement pour coiffer les crochets des griffes et ainsi empêcher la flexion de celles-ci, de sorte que les crochets sont maintenus prisonniers dans le retrait annulaire, ce qui verrouille en position la tige de l'actionneur dans le cylindre.Claw locking devices comprise on the one hand a sleeve, most often installed on the rod, and the tubular wall of which is cut to form a certain number of elastically deformable claws which extend cantilevered in an axial direction. being terminated by hooks, and on the other hand an anchoring part provided on the cylinder, comprising an annular recess to receive the hooks. The anchoring part has a step to bend the claws when the step passes under the hooks of the claws. The step is followed by an annular recess in which the hooks engage to allow the claws to return to the rest position once the hooks have passed the step. A locking piston which has been pushed against a return spring by the hooks when they pass over the step then moves axially to cover the hooks of the claws and thus prevent bending thereof, so that the hooks are held captive in the annular recess, which locks the actuator rod in position in the cylinder.

Pour déverrouiller la tige, il suffit de faire reculer le piston de verrouillage de sorte à permettre de nouveau la flexion des griffes, et de faire éloigner la partie d'ancrage du manchon. Le piston de verrouillage est déplacé à l'encontre du ressort de rappel au moyen de fluide sous pression, de concert avec le déplacement de la tige, sans qu'il soit besoin de prévoir une commande individualisée.To unlock the rod, it suffices to move the locking piston back so as to allow the bending of the claws again, and to move the anchoring part of the sleeve. The locking piston is moved against the return spring by means of pressurized fluid, in concert with the movement of the rod, without the need for individual control.

Les dispositifs de verrouillage à segments comportent quant à eux des segments montés mobiles radialement sur le cylindre entre une position escamotée dans laquelle la tige est libre de coulisser dans le cylindre et une position engagée dans laquelle les segments sont poussés par un piston, lui-même poussé par un ressort, pour pénétrer dans un logement ménagé sur la tige ou sur le piston associé. Une fois les segments engagés, le piston passe par-dessus les segments pour les empêcher de s'escamoter, et ainsi verrouiller en position la tige sur le cylindre.Segment locking devices for their part comprise segments mounted to move radially on the cylinder between a retracted position in which the rod is free to slide in the cylinder and an engaged position in which the segments are pushed by a piston, itself pushed by a spring, to enter a housing provided on the rod or on the associated piston. Once the rings are engaged, the piston passes over the rings to prevent them from retracting, and thus lock the rod in position on the cylinder.

Dans les deux cas, le verrouillage dépend du déplacement d'un piston de verrouillage. Le désengagement des organes de blocage (crochets des griffes, segments) lorsque le piston de verrouillage est reculé est permis par des pentes ménagées sur les parties en contact permettant de repousser les organes de blocage lorsque la tige est déplacée dans le cylindre.In both cases, the locking depends on the movement of a locking piston. The disengagement of the locking members (hooks of the claws, segments) when the locking piston is retracted is allowed by slopes formed on the parts in contact making it possible to push back the locking members when the rod is moved in the cylinder.

Dans quelques cas, on a pu observer des dysfonctionnements empêchant le piston verrouilleur de recouvrir l'organe de blocage, rendant impossible le blocage positif de la tige sur le cylindre.In a few cases, malfunctions have been observed preventing the locking piston from covering the locking member, making it impossible to positively lock the rod on the cylinder.

GB 1 032 243 , US 2 702 024 et US 3 315 568 décrivent des actionneurs télescopiques selon l'art antérieur. GB 1 032 243 , US 2,702,024 and US 3,315,568 describe telescopic actuators according to the prior art.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

L'invention vise à proposer un actionneur télescopique équipé d'un dispositif de verrouillage automatique sans piston de verrouillage.The invention aims to provide a telescopic actuator equipped with an automatic locking device without a locking piston.

PRESENTATION DE L'INVENTIONPRESENTATION OF THE INVENTION

En vue de la réalisation de ce but, on propose un actionneur télescopique comportant un cylindre ayant une extrémité fermée et une extrémité ouverte pour le passage d'une tige creuse montée à coulissement axial dans le cylindre. Selon l'invention, l'actionneur comporte un support central qui s'étend depuis l'extrémité fermée du cylindre à l'intérieur de la tige et qui porte des obstacles radialement mobiles entre une position escamotée laissant libre un coulissement de la tige et une position en saillie dans laquelle les obstacles sont engagés dans une gorge de la tige pour verrouiller axialement la tige relativement au cylindre, les flancs des obstacles et de la gorge étant conformés pour empêcher tout retrait des obstacles par déplacement de la tige, les obstacles étant disposés à l'extrémité de lames élastiques s'étendant axialement et agencées pour rappeler les obstacles de la position escamotée à la position en saillie, le support central portant des moyens commandés de flexion des lames pour provoquer le retrait des obstacles vers la position escamotée.In order to achieve this object, there is provided a telescopic actuator comprising a cylinder having a closed end and an open end for the passage. a hollow rod mounted to slide axially in the cylinder. According to the invention, the actuator comprises a central support which extends from the closed end of the cylinder inside the rod and which carries obstacles that are radially movable between a retracted position leaving free sliding of the rod and a projecting position in which the obstacles are engaged in a groove of the rod to axially lock the rod relative to the cylinder, the sides of the obstacles and of the groove being shaped to prevent any removal of the obstacles by displacement of the rod, the obstacles being arranged at the end of resilient blades extending axially and arranged to return the obstacles from the retracted position to the protruding position, the central support carrying controlled means for bending the blades to cause the obstacles to be withdrawn towards the retracted position.

Ainsi, le verrouillage est assuré automatiquement par le simple engagement des obstacles dans la gorge de la tige sous l'action des lames, les obstacles étant maintenus en position par les lames sans qu'il soit besoin de confirmer cet engagement par un piston de verrouillage. Toute tentative de déplacement de la tige sera alors bloquée par la coopération des obstacles avec les flancs de la gorge. Le déverrouillage impose la commande préalable des moyens de flexion des lames, ce qui désengage les obstacles, permettant le libre déplacement de la tige.Thus, the locking is ensured automatically by the simple engagement of the obstacles in the groove of the rod under the action of the blades, the obstacles being held in position by the blades without it being necessary to confirm this engagement by a locking piston. . Any attempt to move the rod will then be blocked by the cooperation of the obstacles with the sides of the groove. Unlocking requires the prior control of the bending means of the blades, which disengages the obstacles, allowing the free movement of the rod.

Selon un mode de réalisation préféré, les moyens commandés de flexion des lames comprennent un piston déverrouilleur monté axialement coulissant dans le support central entre une position de repos dans laquelle le piston déverrouilleur est éloigné des obstacles, et une position de déverrouillage dans laquelle une extrémité creuse conique du piston déverrouilleur coopère avec des doigts solidaires de chacun des obstacles pour provoquer la flexion des lames et donc le retrait des obstacles de la position en saillie à la position escamotée.According to a preferred embodiment, the controlled means for bending the blades comprise an unlocking piston mounted to slide axially in the central support between a rest position in which the unlocking piston is remote from obstacles, and an unlocking position in which a hollow end conical of the unlocking piston cooperates with fingers integral with each of the obstacles to cause the bending of the blades and therefore the withdrawal of the obstacles from the protruding position to the retracted position.

DESCRIPTION DES FIGURESDESCRIPTION OF FIGURES

L'invention sera mieux comprise à la lumière de la description qui suit d'un mode particulier de réalisation de l'invention, en référence aux figures des dessins annexés, parmi lesquelles :

  • la figure 1 est une vue en coupe d'un actionneur hydraulique muni d'un dispositif de verrouillage selon l'invention, la tige étant illustrée en position de verrouillage ;
  • la figure 2 est une vue en coupe partielle du manchon portant les obstacles du dispositif de verrouillage ;
  • la figure 3 est une vue similaire à celle de la figure 1 montrant l'activation du piston déverrouilleur ;
  • la figure 4 est une vue similaire à celle de la figure 1, montrant la tige rentrée en-deçà de la position de verrouillage ;
  • la figure 5 est une vue similaire à celle de la figure 1, montrant la tige sortie au-delà de la position de verrouillage.
The invention will be better understood in the light of the following description of a particular embodiment of the invention, with reference to the figures of the appended drawings, among which:
  • the figure 1 is a sectional view of a hydraulic actuator provided with a locking device according to the invention, the rod being illustrated in the locking position;
  • the figure 2 is a partial sectional view of the sleeve carrying the obstacles of the locking device;
  • the figure 3 is a view similar to that of the figure 1 showing the activation of the unlocking piston;
  • the figure 4 is a view similar to that of the figure 1 , showing the rod retracted below the locking position;
  • the figure 5 is a view similar to that of the figure 1 , showing the rod extended beyond the locked position.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

En référence à la figure 1, l'actionneur télescopique de l'invention comporte un cylindre 1 fermé à une extrémité par un fond étanche 2 et à une autre extrémité par un fond percé 3 pour laisser passer une tige 4 solidaire d'un piston 5 monté à coulissement étanche dans le cylindre 1 selon un axe X pour définir une chambre hydraulique de rétraction 6 et une chambre hydraulique d'extension 7. Le déplacement de la tige 4 relativement au cylindre 1 est obtenu en pressurisant l'une ou l'autre des chambres. Ici, la tige 4 et le piston 5 sont creux et définissent un logement axial 8 interne présentant, au niveau du piston 5, une gorge 9 à flancs sensiblement perpendiculaires à l'axe X. L'actionneur comporte en outre un support central 10 qui s'étend depuis le fond étanche 2 selon une direction axiale et sur lequel est vissé un manchon de verrouillage 11, plus spécialement visible à la figure 2, qui s'étend à l'intérieur du logement axial 8 de l'ensemble tige/piston.With reference to the figure 1 , the telescopic actuator of the invention comprises a cylinder 1 closed at one end by a sealed bottom 2 and at the other end by a drilled bottom 3 to allow a rod 4 integral with a piston 5 mounted to slide tightly to pass through the cylinder 1 along an X axis to define a hydraulic retraction chamber 6 and a hydraulic extension chamber 7. The displacement of the rod 4 relative to the cylinder 1 is obtained by pressurizing one or the other of the chambers. Here, the rod 4 and the piston 5 are hollow and define an internal axial housing 8 having, at the level of the piston 5, a groove 9 with flanks substantially perpendicular to the axis X. The actuator further comprises a central support 10 which extends from the sealed bottom 2 in an axial direction and onto which is screwed a locking sleeve 11, more especially visible at the figure 2 , which extends inside the axial housing 8 of the rod / piston assembly.

Le manchon de verrouillage 11 a une forme générale tubulaire terminée d'un côté par un fond 12 et de l'autre côté par un embout fileté 13 destiné à être vissé sur le support central 10. Le manchon de verrouillage 11 comporte une paroi tubulaire dans laquelle des lames longitudinales 14 sont découpées pour présenter chacune une première extrémité solidaire du manchon de verrouillage 11 et une extrémité libre portant un obstacle 15 qui s'étend en saillie vers l'extérieur du manchon de verrouillage 11 lorsque les lames 14 sont à l'état de repos, comme illustré ici. Un doigt 16 s'étend longitudinalement depuis chaque obstacle 15 à l'intérieur du manchon de verrouillage 11. Les lames 14 peuvent fléchir vers l'intérieur du manchon de verrouillage 11 de façon que les obstacles 15 soient ramenés radialement vers une position escamotée dans laquelle ils ne saillent pas de la surface externe du manchon de verrouillage 11. Les lames 14 exercent alors un effort de rappel des obstacles 15 vers la position en saillie.The locking sleeve 11 has a generally tubular shape terminated on one side by a bottom 12 and on the other side by a threaded end piece 13 intended to be screwed onto the central support 10. The locking sleeve 11 has a tubular wall in which longitudinal blades 14 are cut to each have a first end integral with the locking sleeve 11 and a free end carrying an obstacle 15 which projects outwardly from the locking sleeve 11 when the blades 14 are at the side. idle state, as shown here. A finger 16 extends longitudinally from each obstacle 15 inside the locking sleeve 11. The blades 14 can flex inwardly of the locking sleeve 11 so that the obstacles 15 are returned radially to a retracted position in which they do not protrude from the outer surface of the locking sleeve 11. The blades 14 then exert a return force of the obstacles 15 towards the protruding position.

Revenant à la figure 1, on observe que les obstacles 15 du manchon de verrouillage 11 sont engagés dans la gorge 9 du piston 5, de sorte que la tige 4 est verrouillée en position dans le cylindre 1. Les flancs des obstacles 15 et les flancs de la gorge 9 sont conformés pour empêcher tout escamotage des obstacles par déplacement de la tige 4, de sorte que la position illustrée à la figure 1 est une position stable.Returning to the figure 1 , it is observed that the obstacles 15 of the locking sleeve 11 are engaged in the groove 9 of the piston 5, so that the rod 4 is locked in position in the cylinder 1. The sides of the obstacles 15 and the sides of the groove 9 are shaped to prevent any retraction of obstacles by displacement of the rod 4, so that the position shown in figure 1 is a stable position.

Pour déverrouiller la tige 4, un piston déverrouilleur 20 est monté à coulissement étanche dans le support central 10 pour y définir une chambre de déverrouillage 21 que l'on pressurise pour provoquer le déplacement du piston de déverrouillage 20 vers une position de déverrouillage dans laquelle une extrémité creuse conique 22 du piston coopère avec les doigts 16 pour forcer les lames 14 à fléchir et ainsi escamoter les obstacles 15, de sorte que la tige 4 est libérée et peut coulisser librement, comme cela est illustré à la figure 3. Lorsque la chambre de déverrouillage 21 n'est pas pressurisée, un ressort de rappel 23 déplace le piston déverrouilleur 20 vers une position de repos dans laquelle le piston déverrouilleur 20 est éloigné des doigts 16, comme illustré à la figure 1.To unlock the rod 4, an unlocking piston 20 is mounted to slide tightly in the central support 10 to define there an unlocking chamber 21 which is pressurized to cause the movement of the unlocking piston 20 towards an unlocking position in which a tapered hollow end 22 of the piston cooperates with the fingers 16 to force the blades 14 to flex and thus retract the obstacles 15, so that the rod 4 is released and can slide freely, as illustrated in figure 3 . When the unlocking chamber 21 is not pressurized, a return spring 23 moves the unlocking piston 20 to a rest position in which the unlocking piston 20 is remote from the fingers 16, as illustrated in FIG. figure 1 .

On notera que la tige 4 est verrouillée automatiquement dès qu'elle atteint la position de verrouillage dans laquelle la gorge 9 vient en regard des obstacles 15. Dans le cas de figure illustré à la figure 4 dans lequel la tige 4 a été rentrée et se trouve en deçà de la position de verrouillage, les obstacles 15 restent escamotés en étant appuyés contre la surface interne du logement axial 8 de la tige 4. Quand la chambre d'extension 7 est pressurisée, la tige 4 sort jusqu'à ce que les lames 14 fléchies repoussent les obstacles 15 vers la position en saillie dans la gorge 9, dès que celle-ci passe en regard des obstacles 15. Dans le cas de figure illustré à la figure 5 dans laquelle la tige 4 a été sortie et se trouve au-delà de la position de verrouillage, les obstacles 15 sont revenus dans la position en saillie sous l'action des lames, puisque la tige 4 et le piston 5 ne sont plus en regard des obstacles 15. Lorsque la chambre de rétraction 6 est pressurisée, la tige 4 rentre, et le piston 5 comporte sur sa face arrière un cône d'effacement 25 forçant les obstacles 15 à s'escamoter par flexion des lames 14, jusqu'à passer sous la paroi interne de la tige 4. Les lames 14 fléchies repoussent les obstacles 15 vers la position en saillie dans la gorge 9 dès que celle-ci passe en regard des obstacles 15.It will be noted that the rod 4 is automatically locked as soon as it reaches the locking position in which the groove 9 faces the obstacles 15. In the case illustrated in figure 4 in which the rod 4 has been retracted and is located below the locking position, the obstacles 15 remain retracted by being pressed against the surface internal of the axial housing 8 of the rod 4. When the extension chamber 7 is pressurized, the rod 4 comes out until the bent blades 14 push the obstacles 15 towards the protruding position in the groove 9, as soon as that -this passes opposite the obstacles 15. In the case illustrated in figure 5 in which the rod 4 has been extended and is located beyond the locking position, the obstacles 15 have returned to the projecting position under the action of the blades, since the rod 4 and the piston 5 are no longer facing each other obstacles 15. When the retraction chamber 6 is pressurized, the rod 4 retracts, and the piston 5 has on its rear face an erasing cone 25 forcing the obstacles 15 to retract by bending the blades 14, until pass under the internal wall of the rod 4. The flexed blades 14 push the obstacles 15 towards the projecting position in the groove 9 as soon as the latter passes opposite the obstacles 15.

L'invention n'est pas limitée à ce qui vient d'être décrit, mais englobe au contraire toute variante entrant dans le cadre défini par les revendications.The invention is not limited to what has just been described, but on the contrary encompasses any variant coming within the scope defined by the claims.

En particulier, bien qu'ici l'invention ait été décrite en application à un actionneur hydraulique, l'invention pourra également être appliquée à un actionneur électromécanique ou de technologie hybride. L'actionnement du piston déverrouilleur pourra par exemple être assuré par un simple électroaimant.In particular, although the invention has here been described in application to a hydraulic actuator, the invention may also be applied to an electromechanical actuator or of hybrid technology. The actuation of the unlocking piston could for example be provided by a simple electromagnet.

Bien qu'ici la position de verrouillage est une position intermédiaire entre la position rétractée et la position étendue de l'actionneur, le dispositif de verrouillage de l'invention pourra être utilisé pour assurer un verrouillage dans l'une de ces deux positions extrêmes.Although here the locking position is an intermediate position between the retracted position and the extended position of the actuator, the locking device of the invention can be used for ensure locking in one of these two extreme positions.

Claims (4)

  1. Telescopic actuator including a cylinder (1) having a closed end (2) and an open end (3) for passing a hollow rod (4) mounted to slide axially in the cylinder, the actuator including a central support (10) that extends from the closed end of the cylinder inside the rod and that carries obstacles (15) that are movable radially between a retracted position leaving the rod free to slide and a projecting position in which the obstacles are engaged in a groove (9) in the rod in order to lock the rod axially relative to the cylinder, the obstacles being arranged at the ends of spring blades (14) extending longitudinally and arranged to urge the obstacles from the retracted position to the projecting position, characterised in that the flanks of the obstacles and of the groove are shaped so as to prevent any retraction of the obstacles by movement of the rod, the central support carrying controlled means (20) for flexing the blades in order to cause the obstacles to be retracted toward the retracted position.
  2. Telescopic actuator according to claim 1, wherein the controlled means for causing the blades to flex comprise an unlocking piston (20) mounted to slide axially on the central support (10) between a rest position in which the unlocking piston is remote from the obstacles and an unlocking position in which a conical hollow end (22) of the unlocking piston co-operates with fingers (16) secured to each of the obstacles (15) in order to cause the blades to flex and thus the obstacles to be retracted from the projecting position to the retracted position.
  3. Actuator according to claim 1, wherein the rod (4) is associated with a piston (5), the groove (9) for receiving the obstacles being made at the level of the piston.
  4. Actuator according to claim 1, wherein the rod (4) is associated with a piston (5) that includes a deflection cone (25) for forcing the obstacles (15) to be retracted by flexing of the blades (14) while the rod is being retracted.
EP19175001.7A 2018-05-18 2019-05-16 Telescopic actuator with automatic locking Active EP3569873B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1854162A FR3081237B1 (en) 2018-05-18 2018-05-18 TELESCOPIC ACTUATOR WITH AUTOMATIC LOCKING

Publications (2)

Publication Number Publication Date
EP3569873A1 EP3569873A1 (en) 2019-11-20
EP3569873B1 true EP3569873B1 (en) 2021-09-22

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EP19175001.7A Active EP3569873B1 (en) 2018-05-18 2019-05-16 Telescopic actuator with automatic locking

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US (1) US10801530B2 (en)
EP (1) EP3569873B1 (en)
CN (1) CN110500336B (en)
CA (1) CA3043098C (en)
ES (1) ES2898941T3 (en)
FR (1) FR3081237B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111306139B (en) * 2020-03-16 2021-08-20 娄底市中厚机械制造有限公司 Multistage hydraulic cylinder
CN111532422B (en) * 2020-04-17 2023-07-28 贵州新安航空机械有限责任公司 Bidirectional hydraulic locking mechanism for front wheels of helicopter
CN112566436A (en) * 2020-12-14 2021-03-26 湖南维创尚科技有限公司 5G communication equipment convenient to maintain
CN115013381B (en) * 2022-07-02 2024-05-28 安徽工程大学 Multistage hydraulic cylinder guiding device with locking function
DE102023101539A1 (en) * 2023-01-23 2024-07-25 Weber-Hydraulik Gmbh Mechanical locking device for a hydraulic cylinder

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297902A (en) * 1940-05-28 1942-10-06 Siam Mechanical locking device for pistons and the like
US2702024A (en) * 1950-07-24 1955-02-15 Electro Hydraulics Ltd Automatic mechanical locking device for telescopic jacks
US2851995A (en) * 1955-07-20 1958-09-16 Cleveland Pneumatic Ind Inc Lock mechanism
US3072105A (en) * 1961-07-05 1963-01-08 Lionel Pacific Inc Lock for fluid pressure actuator
GB1032243A (en) * 1964-03-09 1966-06-08 Dowty Rotol Ltd Telescopic fluid-pressure-operable jacks
US3315568A (en) * 1965-05-28 1967-04-25 Otis Eng Co Operator devices
GB1078618A (en) * 1965-08-03 1967-08-09 Hydraulic Unit Specialities Co Locking means for hydraulic control valves
US3415167A (en) * 1966-10-20 1968-12-10 Whitney J. Champagne Locking cylinder
FR2248449A1 (en) * 1973-10-18 1975-05-16 Outillage Air Comprime Spool type hydraulic distributor - slide radially floats on control rod and is locked axially
FR2402790A1 (en) * 1977-09-08 1979-04-06 Messier Hispano Sa Hydraulic positioning cylinder for aircraft use - has auxiliary locking catch to enable small mechanical force to release lock
US4188860A (en) * 1978-01-03 1980-02-19 Shafco Industries, Inc. Locking mechanism
DE4120455A1 (en) * 1991-06-21 1992-12-24 Timmer Pneumatik Gmbh Sliding piston gear with positive end stop - has locking clamp on piston rod and end position flange with release piston located between cylinder and flange
DE10207415B4 (en) * 2002-02-21 2014-01-16 Narr Beteiligungs Gmbh Hydraulic or pneumatic drive for a tool clamp
DE102004030007A1 (en) * 2004-06-22 2006-03-02 Zf Friedrichshafen Ag Actuator device for actuating a locking mechanism
CN101576102A (en) * 2009-06-08 2009-11-11 南京晨光集团有限责任公司 Mechanical self-locking hydraulic cylinder
CN201982411U (en) * 2011-01-17 2011-09-21 江阴市洪腾机械有限公司 External control type self-locking hydraulic cylinder
GB201109487D0 (en) * 2011-06-07 2011-07-20 Goodrich Actuation Systems Ltd Actuator with locking arrangement
DE102012004157A1 (en) * 2012-03-05 2013-09-05 Svm Schultz Verwaltungs-Gmbh & Co. Kg locking unit
CN203641170U (en) * 2013-09-27 2014-06-11 北京航天发射技术研究所 Steel ball lock and interference external lock combined locking type hydraulic cylinder
CN103775431A (en) * 2014-03-03 2014-05-07 沈阳工业大学 Hydraulic cylinder capable of being locked at any position by using elastic sleeve
CN104006033A (en) * 2014-05-09 2014-08-27 中船重工中南装备有限责任公司 Powerful and mechanical automatic-locking hydraulic cylinder
CN104006032B (en) * 2014-05-09 2016-01-20 中船重工中南装备有限责任公司 The locked oil hydraulic cylinder of a kind of two-way mechanical
CN104454781B (en) * 2014-11-04 2017-05-24 长沙中联消防机械有限公司 Locking amplitude-variable oil cylinder, oil cylinder control system, climbing fire truck or fire-fighting operation vehicle
CN104405726B (en) * 2014-11-17 2018-03-13 徐州耐克盾机械制造有限公司 A kind of self-locking oil cylinder
CN104500501B (en) * 2014-12-05 2017-01-25 四川凌峰航空液压机械有限公司 Hydraulic floatingsnap ring lock
CN108999835A (en) * 2018-09-21 2018-12-14 中冶赛迪工程技术股份有限公司 A kind of conical surface type mechanical interlocking hydraulic cylinder

Also Published As

Publication number Publication date
FR3081237A1 (en) 2019-11-22
CN110500336B (en) 2021-04-27
FR3081237B1 (en) 2020-12-18
EP3569873A1 (en) 2019-11-20
CN110500336A (en) 2019-11-26
US10801530B2 (en) 2020-10-13
CA3043098A1 (en) 2019-11-18
ES2898941T3 (en) 2022-03-09
US20190353187A1 (en) 2019-11-21
CA3043098C (en) 2021-06-22

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