FR2526883A1 - Double acting type actuator - has two opposed sliding pistons and rods in single body - Google Patents
Double acting type actuator - has two opposed sliding pistons and rods in single body Download PDFInfo
- Publication number
- FR2526883A1 FR2526883A1 FR8206020A FR8206020A FR2526883A1 FR 2526883 A1 FR2526883 A1 FR 2526883A1 FR 8206020 A FR8206020 A FR 8206020A FR 8206020 A FR8206020 A FR 8206020A FR 2526883 A1 FR2526883 A1 FR 2526883A1
- Authority
- FR
- France
- Prior art keywords
- pistons
- rods
- double acting
- volumes
- single body
- 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
Links
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 un vérin comportant deux pistons avec tiges symétriques et exerçant des poussées opposées.DESCRIPTION
The present invention relates to a cylinder comprising two pistons with symmetrical rods and exerting 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 import que celui de la tige, l'implantation du vérin ordinaire prés souvent des difficultés dans une machine complexe et de compo tion dense, notamment dans le cas d'application à des système de leviers articulés. In the state of the art, - it is usual to use the force deployed by an ordinary cylinder by securing the cylinder of the cylinder at a determined point and the rod at another point; the size of the cylinder being much more important than that of the rod, the installation of the ordinary jack often presents difficulties in a complex machine and of dense composition, in particular 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 un vérin à double effet dont corps long est fermé aux deux extrémités par des cloisons coi tant des ouvertures, dans lesquelles coulissent deux tiges solidaires chacune d'un piston. Les cavités variables délimi dans le corps par les pistons sont remplies huile soumise des pressions par des mécanismes connus en soi, ces pression étant coordonnées pour agir sur les faces opposées des pisto en leur imprimant des mouvements opposes. It is characterized by a double-acting cylinder whose long body is closed at both ends by partitions coi as openings, in which slide two rods each integral with a piston. The variable cavities delimited in the body by the pistons are filled with oil subjected to pressures by mechanisms known per se, these pressures being coordinated to act on the opposite faces of the pistos by imparting opposite movements to them.
La description qui va suivre, au regard de la planche annexée, est donnée à titre d'exemple non limitatif d'un mod de réalisation de la présente invention et fera comprendre comment elle peut être réalisée, les particularités qui ress tent tant du dessin que du texte, faisant partie, bien ente de celle-ci. The description which follows, with regard to the appended plate, is given by way of nonlimiting example of an embodiment of the present invention and will make it clear how it can be carried out, the particular features which resemble both the drawing and of the text, being part, of course, of it.
Le dessin est le schéma, vu en coupe, d'un vérin cylind que constitué d'un corps " c ", dans lequel coulissent deux pistons " d " et " d ' ", créant dans celui-ci trois volumes
b t , b " et b ' ";; les volumes sont remplis par lthuil de deux circuits hydrauliques, le premier raccordé au volume central par l'orifice " g ", le second aux volumes " b " et " b ' "par les orifices " e " et " e
Quand la pression du premier circuit est exercée, par moyen connu en soi, dans le volume " a ", les pistons " d d d ' " se déplacent d'une course qui est égale, si les réactions des éléments sur lesquels s'appliquent les tiges " f " et " f'" sont elles-mêmes égales. The drawing is the diagram, seen in section, of a cylindrical cylinder that consists of a body "c", in which two pistons "d" and "d" slide, creating in it three volumes
bt, b "and b '";; the volumes are filled by two hydraulic circuits, the first connected to the central volume by the orifice "g", the second to the volumes "b" and "b '" by the orifices "e" and "e
When the pressure of the first circuit is exerted, by means known per se, in the volume "a", the pistons "ddd""move with a stroke which is equal, if the reactions of the elements to which the rods are applied "f" and "f '" are themselves equal.
Si les réactions sont inégaies, l'un des pistons peut venir en butée avant l'autre, mais ce dernier continue alors son déplacement jusqu'à sa butée propre. If the reactions are uneven, one of the pistons can come to a stop before the other, but the latter then continues its movement until its own stop.
Lors de la butee des deux pistons, la poussée du premier circuit est stoppée par un moyen connu en soi. When the two pistons stop, the thrust of the first circuit is stopped by a means known per se.
Lors de la mise en pression du second circuit sur les volumes " b " et " b ' ", les pistons " d " et " d ' " stécar- tent des extrémités du cylindre provoquant l'expulsion du liquide hydraulique du volume " a ", dans un mouvement symétrique, chaque extrémité travaillant comme un vérin ordinaire, et les deux poussées opposées étant régulées par un diviseur de débit connu en soi. When the second circuit is pressurized on volumes "b" and "b '", the pistons "d" and "d" stop from the ends of the cylinder causing the expulsion of hydraulic fluid from volume "a" , in a symmetrical movement, each end working like an ordinary cylinder, and the two opposite thrusts being regulated by a flow divider known per se.
Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et représenté qui n'a été donné qu a 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 |
---|---|---|---|
FR8206020A FR2526883A1 (en) | 1982-04-05 | 1982-04-05 | Double acting type actuator - has two opposed sliding pistons and rods in single body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8206020A FR2526883A1 (en) | 1982-04-05 | 1982-04-05 | Double acting type actuator - has two opposed sliding pistons and rods in single body |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2526883A1 true FR2526883A1 (en) | 1983-11-18 |
FR2526883B3 FR2526883B3 (en) | 1985-01-04 |
Family
ID=9272836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8206020A Granted FR2526883A1 (en) | 1982-04-05 | 1982-04-05 | Double acting type actuator - has two opposed sliding pistons and rods in single body |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2526883A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3415680A1 (en) * | 1983-12-30 | 1985-07-11 | Dynamit Nobel Ag, 5210 Troisdorf | COMPRESSED GAS ACTUATED MECHANICAL POWER ELEMENT |
DE3430037A1 (en) * | 1984-08-16 | 1986-02-27 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg | Horizontal hydraulic cylinder unit |
EP0200832A2 (en) * | 1985-05-04 | 1986-11-12 | Sodick Corporation | An injection moulding method and an mould clamping apparatus for an injection moulding machine |
DE3601341A1 (en) * | 1986-01-18 | 1987-07-23 | Delmag Maschinenfabrik | Working-cylinder arrangement |
US5343962A (en) * | 1992-08-24 | 1994-09-06 | Ingersoll-Rand Company | Double rod cylinder feed system |
US5353687A (en) * | 1992-12-18 | 1994-10-11 | Koenig Larry E | Pocket cylinder for sliding door |
EP0997062A1 (en) * | 1998-10-30 | 2000-05-03 | Kuhn S.A. | Agricultural machine |
DE10312633A1 (en) * | 2003-03-21 | 2004-11-04 | Sundwig Gmbh | Setting cylinders for roll stands for rolling steel or non-ferrous metal |
GB2463979A (en) * | 2006-02-21 | 2010-04-07 | Schlumberger Holdings | Downhole actuation tool |
WO2010087939A1 (en) * | 2009-01-30 | 2010-08-05 | Fisher Controls International Llc | Adjustable piston actuator |
WO2012152253A1 (en) * | 2011-05-09 | 2012-11-15 | Roland Hörnstein GmbH & Co. KG | Hydraulic cylinder (lift cylinder) for vehicle lifts |
IT201700010739A1 (en) * | 2017-02-01 | 2018-08-01 | Roc S R L | HYDRAULIC CYLINDER AND LIFTING GROUP FOR AN AGRICULTURAL MACHINE |
US20220332552A1 (en) * | 2021-04-14 | 2022-10-20 | Tadano Faun Gmbh | Hydraulic actuator for a locking device of a telescopic boom, locking device, telescopic boom, mobile crane, and method for adjusting a telescopic boom |
-
1982
- 1982-04-05 FR FR8206020A patent/FR2526883A1/en active Granted
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3415680A1 (en) * | 1983-12-30 | 1985-07-11 | Dynamit Nobel Ag, 5210 Troisdorf | COMPRESSED GAS ACTUATED MECHANICAL POWER ELEMENT |
DE3430037A1 (en) * | 1984-08-16 | 1986-02-27 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg | Horizontal hydraulic cylinder unit |
EP0200832A2 (en) * | 1985-05-04 | 1986-11-12 | Sodick Corporation | An injection moulding method and an mould clamping apparatus for an injection moulding machine |
EP0200832A3 (en) * | 1985-05-04 | 1988-04-27 | Sodick Corporation | An injection moulding method and an mould clamping apparatus for an injection moulding machine |
DE3601341A1 (en) * | 1986-01-18 | 1987-07-23 | Delmag Maschinenfabrik | Working-cylinder arrangement |
US5343962A (en) * | 1992-08-24 | 1994-09-06 | Ingersoll-Rand Company | Double rod cylinder feed system |
US5353687A (en) * | 1992-12-18 | 1994-10-11 | Koenig Larry E | Pocket cylinder for sliding door |
EP0997062A1 (en) * | 1998-10-30 | 2000-05-03 | Kuhn S.A. | Agricultural machine |
FR2785143A1 (en) * | 1998-10-30 | 2000-05-05 | Kuhn Sa | AGRICULTURAL MACHINE COMPRISING A DOUBLE CYLINDER WITH A SINGLE CYLINDER |
US6345490B1 (en) | 1998-10-30 | 2002-02-12 | Kuhn S.A. | Agricultural machine including a locking mechanism for preventing a double-rod ram from rotating around its longitudinal axis |
DE10312633A1 (en) * | 2003-03-21 | 2004-11-04 | Sundwig Gmbh | Setting cylinders for roll stands for rolling steel or non-ferrous metal |
DE10312633B4 (en) * | 2003-03-21 | 2005-03-10 | Sundwig Gmbh | Clamping cylinder for rolling stands for rolling steel or non-ferrous metal |
GB2463979A (en) * | 2006-02-21 | 2010-04-07 | Schlumberger Holdings | Downhole actuation tool |
GB2463979B (en) * | 2006-02-21 | 2010-10-06 | Schlumberger Holdings | Downhole actuation tools |
WO2010087939A1 (en) * | 2009-01-30 | 2010-08-05 | Fisher Controls International Llc | Adjustable piston actuator |
US8689675B2 (en) | 2009-01-30 | 2014-04-08 | Fisher Controls International, Llc | Field adjustable piston actuators |
EP2927507A1 (en) * | 2009-01-30 | 2015-10-07 | Fisher Controls International Llc | Adjustable piston actuator |
WO2012152253A1 (en) * | 2011-05-09 | 2012-11-15 | Roland Hörnstein GmbH & Co. KG | Hydraulic cylinder (lift cylinder) for vehicle lifts |
IT201700010739A1 (en) * | 2017-02-01 | 2018-08-01 | Roc S R L | HYDRAULIC CYLINDER AND LIFTING GROUP FOR AN AGRICULTURAL MACHINE |
US20220332552A1 (en) * | 2021-04-14 | 2022-10-20 | Tadano Faun Gmbh | Hydraulic actuator for a locking device of a telescopic boom, locking device, telescopic boom, mobile crane, and method for adjusting a telescopic boom |
US11897736B2 (en) * | 2021-04-14 | 2024-02-13 | Tadano Faun Gmbh | Hydraulic actuator for a locking device of a telescopic boom, locking device, telescopic boom, mobile crane, and method for adjusting a telescopic boom |
Also Published As
Publication number | Publication date |
---|---|
FR2526883B3 (en) | 1985-01-04 |
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