FR2526882A1 - Double acting hydraulic actuator - has mechanical coupling between series mounted cylinders to double thrust - Google Patents

Double acting hydraulic actuator - has mechanical coupling between series mounted cylinders to double thrust Download PDF

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Publication number
FR2526882A1
FR2526882A1 FR8206019A FR8206019A FR2526882A1 FR 2526882 A1 FR2526882 A1 FR 2526882A1 FR 8206019 A FR8206019 A FR 8206019A FR 8206019 A FR8206019 A FR 8206019A FR 2526882 A1 FR2526882 A1 FR 2526882A1
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France
Prior art keywords
cylinders
thrust
rods
double
subjected
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Granted
Application number
FR8206019A
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French (fr)
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FR2526882B3 (en
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Individual
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Individual
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Priority to FR8206019A priority Critical patent/FR2526882A1/en
Publication of FR2526882A1 publication Critical patent/FR2526882A1/en
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Publication of FR2526882B3 publication Critical patent/FR2526882B3/fr
Granted legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1409Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons

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

Abstract

The assembly is welded up to contain a battery of actuators giving opposed thrusts, almost doubled. It is made up of right and left handed actuators, mounted head to tail. The volumes on the rod sides are subjected to a first hydraulic action to slide the rods inside the body. The volume between the pistons and bodies, in a second action, are subjected to a thrust from the rods towards the outside of the body. There can be one right handed actuator (c) in the middle and two side left handed ones (d).

Description

DESCRIPTION
La présente invention a pour objet la réalisation d'une batterie de vérins destinée à exercer des poussées opposees.
DESCRIPTION
The present invention relates to the production of a battery of jacks intended to exert opposite thrusts.

Dans l'état de la technique, il est usuel d'utiliser la force déployée par un vérin ordinaire en assujettissant le cylindre du vérin à un point déterminé et la tige à un autre point; l'encombrement du cylindre étant beaucoup plus importa que celui de la tige, l'implantation du vérin ordinaire grésez souvent des difficultés dans une machine complexe et de compo. In the state of the art, it is usual to use the force deployed by an ordinary cylinder by subjecting the cylinder of the cylinder to a determined point and the rod to another point; the bulk of the cylinder being much more important than that of the rod, the installation of the ordinary jack often causes difficulties in a complex and composing machine.

tion d-nse,notamment dans le cas d'application à des systèmes de leviers articulés.d-nse, particularly in the case of application to articulated lever systems.

La présente invention propose un dispositif remédiant à la difficulté énoncée. The present invention provides a device which overcomes the difficulty stated.

Elle est caractérisée par l'assemblage de plusieurs vérins classisques, montés en opposition parallèle, de façon à obten: un ensemble à double effet-par tiges multiples. It is characterized by the assembly of several classic cylinders, mounted in parallel opposition, so as to obtain: a double-acting unit - by multiple rods.

La description qui va suivre, au regard de b planche ann est donnée à titre d'exemple non limitatif d'un mode de réal.' tion de la présente invention et fera comprendre comment elle peut être réalisée, les particularités qui ressortent tant du dessin que du texte, faisant partie,bien entendu, de celle-ci
Le dessin est le schéma, vu en coupe,d'un mode de réalisai comportant un vérin triple, constitué de trois corps en paral: le corps central dit " à droite " comporte un piston avec tig coulissante délimitant dans le corps un volume " c " et un volume " r ", et les deux corps latéraux dits " à gauche ", assemblés par soudure ou autrement au corps central, comporta chacun un piston avec tige en direction opposée de celle du piston central, ces pistons coulissants délimitant dans les c latéraux des volumes " d " et " d ' " et des volumes " s " et
s
Les divers volumes sont remplis par l'huile de deux circ hydrauliques, le premier raccordé aux volumes " c ", " d " et " d ' ", le second aux volumes " r", " s " et " s
Quand la pression du premier circuit est exercee par un moyen connu en soi dans les volumes " c ", " d " et " d les trois pistons se déplacent pour aller jusqu'en butée vers les cloisons des corps.
The description which follows, with regard to b plate ann is given by way of nonlimiting example of an embodiment. ' tion of the present invention and will make it understood how it can be produced, the particularities which emerge both from the drawing and from the text, forming, of course, part thereof
The drawing is the diagram, seen in section, of an embodiment comprising a triple cylinder, consisting of three parallel bodies: the central body known as "on the right" comprises a piston with sliding tig delimiting in the body a volume "c "and a volume" r ", and the two lateral bodies called" left ", assembled by welding or otherwise to the central body, each comprised a piston with rod in the direction opposite to that of the central piston, these sliding pistons delimiting in the c side of volumes "d" and "d '" and volumes "s" and
s
The various volumes are filled with oil from two hydraulic circuits, the first connected to volumes "c", "d" and "d '", the second to volumes "r", "s" and "s
When the pressure of the first circuit is exerted by a means known per se in volumes "c", "d" and "d the three pistons move to reach the stop towards the partitions of the bodies.

Lors de la butee des pistons, la pression du premier circuit est stoppée par un moyen connu en soi. When the pistons stop, the pressure of the first circuit is stopped by a means known per se.

Lors de la mise en pression du second circuit sur les volumes " r ", " s " et " s ' ", les pistons s écartent des extrémités traversées par les tiges. When the second circuit is pressurized on volumes "r", "s" and "s'", the pistons move away from the ends through which the rods pass.

Dans l'une et l'autre phase, les pressions dans les volumes respectifs sont régulées par un diviseur de débits connu en soi. In both phases, the pressures in the respective volumes are regulated by a flow divider known per se.

Si l'on veut agir sur un point unique du côté des tiges des vérins lateraux, les extrémités de celles-ci sont rendues solidaires par une pièce d'accoupbement,permettant d'exercer les forces opposées de l'ensemble dans l'axe du piston central. If we want to act on a single point on the side of the rods of the lateral cylinders, the ends of these are made integral by a coupling piece, allowing to exert the opposite forces of the assembly in the axis of the central piston.

Si l'on désire obtenir la même poussée, symétriquement opposée, d'un coté et de I'autre de la batterie, le vérin central doit avoir une section intérieure d'une surface égale au total des surfaces des sections intérieures des corps latéraux, la pression étant la même dans les canalisations de chaque circuit. If it is desired to obtain the same thrust, symmetrically opposite, on one side and the other of the battery, the central jack must have an internal section of an area equal to the total of the surfaces of the internal sections of the lateral bodies, the pressure being the same in the pipes of each circuit.

Du fait de l'installation en opposition, l'on obtient une longueur de déploiement des tiges presque double de celle du vérin central. Due to the installation in opposition, one obtains a length of deployment of the rods almost double that of the central jack.

En outre, l'adoption de deux vérins latéraux au lieu de l'accouplement en opposition d'un vérin semblable au vérin principal, limite l'encombrement de l'ensemble en épaisseur, (s'il l'augmente en largeur), ce qui peut faciliter son implantation dans un système complexe. In addition, the adoption of two lateral cylinders instead of coupling in opposition to a cylinder similar to the main cylinder, limits the overall size of the assembly, (if it increases in width), this which can facilitate its implantation in a complex system.

Dans une variante, la batterie peut comporter un nombre plus élevé de vérins, par exemple, quatre, en opposition deux par deux, avec accouplement des tiges deux par deux. Alternatively, the battery may include a higher number of jacks, for example four, in opposition two by two, with coupling of the rods two by two.

Bien entendu, l'invention n' est nullement limitée au mode de réalisation décrit et représenté qui n'a été donne qu'à titre d'exemple. En particulier, elle comprend tous les moyens constituant des équivalents techniques des moyens décrits ainsi que leurs combinaisons, si celles-ci sont exécutées selon l'esprit de l'invention.  Of course, the invention is in no way limited to the embodiment described and shown, which has been given only by way of example. In particular, it includes all the means constituting technical equivalents of the means described as well as their combinations, if these are carried out according to the spirit of the invention.

Claims (1)

REVENDICATIONS I - Assemblage par soudure ou autrement de vérins en batterie destinée à exercer des poussées opposées assurant un développement presque doublé, et constituée de vérins dits à droite " et de vérins dits " à gauche ", montés tête bêche, les volumes situés du côté des tiges étant soumis dans une première phase d'action à une poussée hydraulique qui fait coulisser les tiges vers l'intérieur du corps,les volumes situés entre les pistons et les fonds des corps étant soumis, dans une seconde phase alternative, à une poussée qui fait sortir les tiges vers l'extérieur des corps. I - Assembly by welding or otherwise of cylinders in battery intended to exert opposite thrusts ensuring an almost doubled development, and consisting of cylinders said to the right "and cylinders called" to the left ", mounted head to tail, the volumes located on the side of the rods being subjected in a first phase of action to a hydraulic thrust which makes the rods slide towards the interior of the body, the volumes located between the pistons and the bottoms of the bodies being subjected, in a second alternative phase, to a thrust which pushes the rods out of the body. II - Dispositif selon - I -, dans lequel il n'existe qu'un vérin " à droite " en position centrale, et deux vérins " à gauche " latéraux. II - Device according to - I -, in which there is only one cylinder "on the right" in the central position, and two cylinders "on the left" side. III - Dispositif selon - I - et - II -? dans lequel le vérin central a une section de surface égale à l'addition des surfaces de section des vérins latéraux III - Device according to - I - and - II -? wherein the central cylinder has a cross-sectional area equal to the addition of the cross-sectional areas of the side cylinders IV - Dispositif selon - I - dans lequel les vérins " à droite " sont au nombre de deux, de même que les vérins " à gauche IV - Device according to - I - in which the cylinders "on the right" are two in number, as well as the cylinders "on the left V - Dispositif selon - I -,ou - II -, ou - III -, ou - IV -, dans lequel les tiges des vérins en paire sont accouplées par une pièce de façon à exercer une poussée dans l'axe du système. V - Device according to - I -, or - II -, or - III -, or - IV -, in which the rods of the cylinders in pair are coupled by a piece so as to exert a thrust in the axis of the system. VI - Dispositif selon l'une quelconque des revendications ci-dessus, dans lequel les poussées de l'une ou de l'autre phase sont commandées et équilibrées par des distributeurs et des diviseurs de pression connus en soi.  VI - Device according to any one of the above claims, in which the thrusts of one or the other phase are controlled and balanced by distributors and pressure dividers known per se.
FR8206019A 1982-04-05 1982-04-05 Double acting hydraulic actuator - has mechanical coupling between series mounted cylinders to double thrust Granted FR2526882A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8206019A FR2526882A1 (en) 1982-04-05 1982-04-05 Double acting hydraulic actuator - has mechanical coupling between series mounted cylinders to double thrust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8206019A FR2526882A1 (en) 1982-04-05 1982-04-05 Double acting hydraulic actuator - has mechanical coupling between series mounted cylinders to double thrust

Publications (2)

Publication Number Publication Date
FR2526882A1 true FR2526882A1 (en) 1983-11-18
FR2526882B3 FR2526882B3 (en) 1985-01-04

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FR8206019A Granted FR2526882A1 (en) 1982-04-05 1982-04-05 Double acting hydraulic actuator - has mechanical coupling between series mounted cylinders to double thrust

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FR (1) FR2526882A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158788A1 (en) * 1984-04-16 1985-10-23 Kabushiki Kaisha Iseki Kaihatsu Koki Tube driving device with triple rams
DE8907603U1 (en) * 1989-06-21 1989-10-05 Fa. Henke Pneumatic, 8927 Burggen Anti-twist pneumatic cylinder unit
DE4125285A1 (en) * 1991-07-31 1993-02-04 Daimler Benz Ag Cylinder-piston assembly for interconnected vehicular hydraulic suspension - incorporates two pistons with buffers defining middle position to which assembly reverts on release of pressure
US5353687A (en) * 1992-12-18 1994-10-11 Koenig Larry E Pocket cylinder for sliding door
EP0909852A1 (en) * 1997-10-14 1999-04-21 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Tamping apparatus
WO2012152253A1 (en) * 2011-05-09 2012-11-15 Roland Hörnstein GmbH & Co. KG Hydraulic cylinder (lift cylinder) for vehicle lifts
EP2799283A3 (en) * 2013-05-03 2018-01-17 Franz Xaver Meiller Fahrzeug- und Maschinenfabrik-GmbH & Co KG Load transport vehicle with an interchangeable container and a lifting device for the interchangeable container

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158788A1 (en) * 1984-04-16 1985-10-23 Kabushiki Kaisha Iseki Kaihatsu Koki Tube driving device with triple rams
DE8907603U1 (en) * 1989-06-21 1989-10-05 Fa. Henke Pneumatic, 8927 Burggen Anti-twist pneumatic cylinder unit
DE4125285A1 (en) * 1991-07-31 1993-02-04 Daimler Benz Ag Cylinder-piston assembly for interconnected vehicular hydraulic suspension - incorporates two pistons with buffers defining middle position to which assembly reverts on release of pressure
US5353687A (en) * 1992-12-18 1994-10-11 Koenig Larry E Pocket cylinder for sliding door
EP0909852A1 (en) * 1997-10-14 1999-04-21 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Tamping apparatus
WO2012152253A1 (en) * 2011-05-09 2012-11-15 Roland Hörnstein GmbH & Co. KG Hydraulic cylinder (lift cylinder) for vehicle lifts
EP2799283A3 (en) * 2013-05-03 2018-01-17 Franz Xaver Meiller Fahrzeug- und Maschinenfabrik-GmbH & Co KG Load transport vehicle with an interchangeable container and a lifting device for the interchangeable container

Also Published As

Publication number Publication date
FR2526882B3 (en) 1985-01-04

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