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 PDFInfo
- 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
- Authority
- FR
- France
- Prior art keywords
- cylinders
- thrust
- rods
- double
- subjected
- 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
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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
- F15B15/1409—Characterised 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
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)
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 |
Family
ID=9272834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8206019A Granted FR2526882A1 (en) | 1982-04-05 | 1982-04-05 | Double acting hydraulic actuator - has mechanical coupling between series mounted cylinders to double thrust |
Country Status (1)
Country | Link |
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FR (1) | FR2526882A1 (en) |
Cited By (7)
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 |
-
1982
- 1982-04-05 FR FR8206019A patent/FR2526882A1/en active Granted
Cited By (7)
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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