ES2412859T3 - Actuator actuated with a fluid with an improved structure - Google Patents
Actuator actuated with a fluid with an improved structure Download PDFInfo
- Publication number
- ES2412859T3 ES2412859T3 ES07009277T ES07009277T ES2412859T3 ES 2412859 T3 ES2412859 T3 ES 2412859T3 ES 07009277 T ES07009277 T ES 07009277T ES 07009277 T ES07009277 T ES 07009277T ES 2412859 T3 ES2412859 T3 ES 2412859T3
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- ES
- Spain
- Prior art keywords
- pistons
- heads
- actuator
- central body
- housed
- 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.)
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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
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
-
- 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
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
- F15B15/065—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type
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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
Accionador accionado con un fluido, que comprende un único par de pistones opuestos entre sí (3) y unacarcasa exterior (2) destinada a contener los pistones opuestos entre sí (3), estando cada uno de dichos pistones (3)provisto de una cremallera (4) destinada a acoplarse con un piñón (5) formado sobre un pivote de accionamiento (6)al cual se puede acceder desde el exterior, estando constituida dicha carcasa exterior (2) por tres partes queincluyen específicamente dos cabezales de una sola parte (11) y un cuerpo central de una sola parte (10) que se cierra mediante dichos dos cabezales (11), presentando cada uno una parte inferior interior, definiendo dichoscabezales (11) las cámaras (20) para el deslizamiento hermético de dichos pistones (3) y estando la cabeza (3a) dedichos pistones (3) alojada de manera deslizante exclusivamente en el interior de dichos cabezales (11) y estando laparte provista de dicha cremallera (4) exclusivamente alojada en dicho cuerpo central (10), y comprendiendoademás el accionador unos muelles de retorno (25) que están alojados en el interior de los soportes (26) definidosrespectivamente en la cabeza (3a) de los pistones (3) y en dicha parte inferior interior de dichos cabezales (11).A fluid driven actuator, comprising a single pair of pistons opposite each other (3) and an outer shell (2) intended to contain the pistons opposite each other (3), each of said pistons (3) being provided with a rack (4) intended to be coupled with a pinion (5) formed on a drive pivot (6) which can be accessed from the outside, said outer housing (2) being constituted by three parts that specifically include two single-part heads ( 11) and a single-part central body (10) that is closed by means of said two heads (11), each one having an inner bottom part, said heads (11) defining the chambers (20) for the hermetic sliding of said pistons ( 3) and the head (3a) of said pistons (3) being slidably housed exclusively inside said heads (11) and the part being provided with said rack (4) exclusively housed in said central body (10), and com the actuator also providing return springs (25) that are housed inside the supports (26) defined respectively in the head (3a) of the pistons (3) and in said lower inner part of said heads (11).
Description
Accionador accionado con un fluido con una estructura mejorada. Actuator driven with a fluid with an improved structure.
5 La presente invención se refiere a un accionador accionado con un fluido con una estructura mejorada. The present invention relates to a fluid driven actuator with an improved structure.
Tal como se conoce, los accionadores accionados con un fluido, normalmente del tipo neumático tal como se da a conocer en el documento EP-A-1 033 496, se proporcionan con una carcasa exterior que está constituida por tres partes y, específicamente, un cuerpo central y dos cabezales extremos, que en su utilización se diseñan para cerrar As is known, fluid actuated actuators, usually of the pneumatic type as disclosed in EP-A-1 033 496, are provided with an outer casing consisting of three parts and, specifically, a central body and two extreme heads, which in use are designed to close
10 las cámaras definidas en el interior del cuerpo central, en el que dos pistones mutuamente opuestos pueden deslizarse, presentando dichos pistones unas partes de tipo cremallera que se acoplan a un piñón definido en el eje central o pivote de accionamiento al que se puede acceder exteriormente. 10 the chambers defined inside the central body, in which two mutually opposite pistons can slide, said pistons having zipper-like parts that are coupled to a pinion defined in the central axis or drive pivot which can be accessed externally .
Con esta forma de realización estructural, la parte central de la carcasa exterior presenta generalmente unas With this structural embodiment, the central part of the outer shell generally has some
15 dimensiones considerables, especialmente si se compara con los cabezales, que en su utilización están constituidos simplemente por placas extremas de cierre. 15 considerable dimensions, especially when compared with the heads, which in their use are simply constituted by closing end plates.
Con este tipo de estructura, se proporcionan partes moldeadas que presentan unas dimensiones muy distintas y es necesario además realizar el mecanizado de las partes que pueden presentar dimensiones muy distintas, lo que With this type of structure, molded parts are provided that have very different dimensions and it is also necessary to perform the machining of the parts that can have very different dimensions, which
20 requiere en muchos casos recurrir a un equipo muy complejo. 20 requires in many cases to resort to a very complex team.
Otro problema se refiere a la alineación correcta de los pistones y del movimiento de los elementos de muelle que generalmente generan la carrera de retorno de los pistones. Another problem concerns the correct alignment of the pistons and the movement of the spring elements that generally generate the return stroke of the pistons.
25 El documento JP 04 034203 A da a conocer un accionador oscilatorio de tipo pistón que presenta pistones en el lado exterior y el lado interior, respectivamente, cada uno en unos conductos de cilindro opuestos primero y segundo con un eje de salida intercalado entre los mismo, accionándose el eje de salida mediante las cremalleras de los pistones. 25 JP 04 034203 A discloses a piston-type oscillatory actuator having pistons on the outer side and the inner side, respectively, each in opposite first and second cylinder ducts with an output shaft intercalated therebetween. , the output shaft being driven by the piston zippers.
El propósito de la presente invención es proporcionar un accionador accionado con un fluido con una estructura The purpose of the present invention is to provide a fluid driven actuator with a structure
30 mejorada que permita obtener la carcasa exterior con elementos que presentan sustancialmente unas dimensiones equivalentes, lo que permite proporcionar unas partes moldeadas y mecanizar las partes que presentan unas dimensiones y necesidades de espacio sustancialmente similares. 30 improved that allows obtaining the outer shell with elements that have substantially equivalent dimensions, which allows to provide molded parts and machining the parts that have substantially similar dimensions and space requirements.
Con este propósito, un objetivo de la presente invención es proporcionar un accionador accionado con un fluido en el For this purpose, an objective of the present invention is to provide an actuator driven with a fluid in the
35 que se mejore la concentricidad de los cabezales con respecto a los pistones, lo que permite alcanzar una mejor alineación del eje horizontal, con la consiguiente mejora del movimiento de los elementos de muelle, cuyos soportes se encuentran más alineados. 35 that the concentricity of the heads with respect to the pistons is improved, which allows to achieve a better alignment of the horizontal axis, with the consequent improvement of the movement of the spring elements, whose supports are more aligned.
Un objetivo adicional de la presente invención comprende proporcionar un accionador accionado con un fluido que, A further object of the present invention comprises providing an actuator driven with a fluid that,
40 gracias a sus particulares características constructivas, pueda proporcionar las mayores garantías de fiabilidad y seguridad en su utilización. 40 thanks to its particular construction characteristics, it can provide the greatest guarantees of reliability and safety in its use.
Otro objetivo adicional de la presente invención comprende proporcionar un accionador accionado con un fluido que pueda realizarse fácilmente a partir de elementos y materiales comúnmente disponibles comercialmente y sea A further objective of the present invention comprises providing a fluid driven actuator that can be easily realized from commonly available commercially available elements and materials and is
45 asimismo competitivo desde un punto de vista exclusivamente económico. 45 also competitive from an exclusively economic point of view.
Según la presente invención, se proporciona un accionador accionado con un fluido tal como se define en las reivindicaciones adjuntas. According to the present invention, a fluid driven actuator is provided as defined in the appended claims.
50 Otras características y ventajas se pondrán más claramente de manifiesto a partir de la descripción de una forma realización preferida pero no exclusiva de un accionador accionado con un fluido con una estructura mejorada, ilustrado a título de ejemplo no limitativo en los dibujos adjuntos, en los que: Other features and advantages will become more clearly apparent from the description of a preferred but not exclusive embodiment of a fluid driven actuator with an improved structure, illustrated by way of non-limiting example in the accompanying drawings, in that:
la figura 1 una vista en sección parcial del accionador según la presente invención, que ilustra sus elementos; 1 shows a partial sectional view of the actuator according to the present invention, illustrating its elements;
55 las figuras 2 y 3 son unas vistas en sección esquemáticas del accionador, tomadas a lo largo de un plano diametral, con los pistones en dos posiciones distintas de funcionamiento. Figures 2 and 3 are schematic sectional views of the actuator, taken along a diametral plane, with the pistons in two different operating positions.
Haciendo referencia a las figuras, el accionador accionado con un fluido con una estructura mejorada según la Referring to the figures, the actuator driven with a fluid with an improved structure according to the
60 presente invención, indicado de un modo general con la referencia numérica 1, comprende una carcasa exterior 2, que comprende los pistones opuestos entre sí 3, de un tipo conocido de por sí, que se proporcionan con las cremalleras correspondientes 4, que engranan con un piñón 5 dispuesto en un eje central o pivote de accionamiento 6, que sobresale de la carcasa exterior. The present invention, indicated in a general way with the reference numeral 1, comprises an outer housing 2, comprising the pistons opposite each other 3, of a type known per se, which are provided with the corresponding zippers 4, which engage with a pinion 5 disposed on a central shaft or drive pivot 6, which protrudes from the outer housing.
La carcasa exterior 2 se proporciona mediante un cuerpo central 10, que soporta giratoriamente el eje 6 y se encuentra cerrado en sus extremos por los cabezales 11, presentando tanto el cuerpo central 10 como los cabezales 11, unas dimensiones preferentemente similares. The outer housing 2 is provided by a central body 10, which rotatably supports the axis 6 and is closed at its ends by the heads 11, both the central body 10 and the heads 11 having preferably similar dimensions.
La particularidad de la presente invención es que los cabezales 11 definen las cámaras 20, realizadas en los mismos, tal como se representan en las figuras 2 a 3, para el deslizamiento hermético de la cabeza 3a de los pistones 3, de tal modo que en su utilización el deslizamiento hermético de los pistones se produce exclusivamente dentro de los cabezales, mientras que la parte proporcionada con la cremallera 4 se aloja sustancialmente dentro del cuerpo central 10. The particularity of the present invention is that the heads 11 define the chambers 20, made therein, as shown in Figures 2 to 3, for the hermetic sliding of the head 3a of the pistons 3, such that in its use the hermetic sliding of the pistons occurs exclusively within the heads, while the part provided with the rack 4 is substantially housed within the central body 10.
Para el movimiento de los pistones 3, se proporcionan los conductos 21, tal como se conoce en la técnica, que suministran aire a presión y que, en el caso de una unidad de acción simple, permiten que el flujo de salida del aire procedente de las cámaras 20 durante la carrera de vuelta, que se realiza mediante unos muelles de retorno 25 que se introducen en los soportes 26 definidos respectivamente en la cabeza 3a de los pistones y en la parte inferior interior o parte extrema de los cabezales 11. For the movement of the pistons 3, the ducts 21 are provided, as is known in the art, which supply pressurized air and which, in the case of a single acting unit, allow the flow of air from the chambers 20 during the return stroke, which is carried out by means of return springs 25 which are introduced in the supports 26 defined respectively in the head 3a of the pistons and in the inner bottom or end part of the heads 11.
Por lo tanto, con la disposición descrita anteriormente, los pistones, con la parte lateral de sus cabezas 3a provista de la junta de estanqueidad 3b, preferentemente se alojan totalmente dentro de los cabezales 11, alcanzando de este modo una estructura global del accionador que presenta tres partes con unas dimensiones sustancialmente similares entre sí. Therefore, with the arrangement described above, the pistons, with the lateral part of their heads 3a provided with the sealing gasket 3b, are preferably fully housed within the heads 11, thereby reaching a global structure of the actuator having three parts with dimensions substantially similar to each other.
La existencia de tres partes que constituyen la carcasa exterior y que se proporcionan mediante elementos que presentan unos pesos y dimensiones relativamente similares, tal como se representa en la figura 1, facilita mucho proporcionar las partes moldeadas y simplifica considerablemente la etapa de mecanizado, ya que se pueden utilizar máquinas y equipos que no son particularmente grandes. The existence of three parts that constitute the outer shell and are provided by elements that have relatively similar weights and dimensions, as shown in Figure 1, makes it very easy to provide the molded parts and considerably simplifies the machining stage, since machines and equipment that are not particularly large can be used.
Además, el alojamiento de la cabeza deslizante de los pistones completamente en el interior de los cabezales permite obtener una alineación considerablemente mejorada en el eje horizontal con respecto a otros sistemas conocidos, además de presentar un mejor movimiento de los muelles, cuyos soportes están más alineados. In addition, the housing of the sliding head of the pistons completely inside the heads allows obtaining a considerably improved alignment on the horizontal axis with respect to other known systems, in addition to presenting a better movement of the springs, whose supports are more aligned .
Además, la disposición descrita permite disponer de una simetría óptima de la carcasa exterior para un funcionamiento más correcto del conjunto. In addition, the described arrangement allows for optimal symmetry of the outer shell for a more correct operation of the assembly.
La presente invención, concebida de este modo, es susceptible de numerosas modificaciones y variaciones, encontrándose todas ellas dentro del alcance de las reivindicaciones adjuntas. The present invention, conceived in this way, is susceptible to numerous modifications and variations, all of which are within the scope of the appended claims.
Además, todos los detalles se pueden sustituir por otros elementos técnicamente equivalentes. In addition, all the details can be replaced by other technically equivalent elements.
En su utilización, los materiales utilizados, así como las eventuales formas y dimensiones, pueden ser cualesquiera en función de los requisitos. In its use, the materials used, as well as the possible shapes and dimensions, can be any depending on the requirements.
La presente solicitud reivindica prioridad de las descripciones de la solicitud de patente italiana nº MI2006A000952. The present application claims priority of the descriptions of Italian patent application No. MI2006A000952.
Cuando a las características técnicas mencionadas en cualquier reivindicación les siguen unas referencias numéricas, dichas referencias numéricas se han incorporado con el único propósito de mejorar la inteligibilidad de las reivindicaciones y, por consiguiente, dichas referencias numéricas no desempeñan efecto limitativo alguno en la interpretación de cada elemento identificado a título de ejemplo por dichas referencias numéricas. When the numerical references are followed by the technical characteristics mentioned in any claim, said numerical references have been incorporated for the sole purpose of improving the intelligibility of the claims and, consequently, said numerical references have no limiting effect on the interpretation of each element identified by way of example by said numerical references.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI20060952 | 2006-05-15 | ||
| ITMI20060952 ITMI20060952A1 (en) | 2006-05-15 | 2006-05-15 | FLUID DYNAMIC ACTUATOR WITH PERFECT STRUCTURE. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2412859T3 true ES2412859T3 (en) | 2013-07-12 |
Family
ID=38375616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES07009277T Active ES2412859T3 (en) | 2006-05-15 | 2007-05-09 | Actuator actuated with a fluid with an improved structure |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1857685B1 (en) |
| ES (1) | ES2412859T3 (en) |
| IT (1) | ITMI20060952A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2495450B1 (en) * | 2011-03-01 | 2013-05-15 | FESTO AG & Co. KG | Fluid-actuated rotary drive |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3148595A (en) * | 1963-05-21 | 1964-09-15 | Ohio Oscillator Company | Fluid motor actuator |
| US4970944A (en) * | 1985-02-07 | 1990-11-20 | Conbraco Industries, Inc. | Rotary actuator |
| JPH0434203A (en) | 1990-05-31 | 1992-02-05 | T V Valve Kk | Piston type oscillatory actuator |
| US5492050A (en) * | 1994-02-14 | 1996-02-20 | Holtgraver; Edward G. | Pneumatic actuator with rack and pinion assembly |
| IT1310299B1 (en) | 1999-03-02 | 2002-02-11 | Air Torque S P A | FLUID-DYNAMIC ACTUATOR FOR THE CONTROL OF VALVES WITH HIGH USEFUL VERSATILITY. |
| DE202006004563U1 (en) * | 2006-03-20 | 2007-05-03 | Wagner, Harald | Swivel drive for operation of e.g. butterfly valve, in chemotechnical plant, has stopper unit that is insertable in movement region of stopper lug such that bedstop is formed, where bedstop stays in relation to position of stopper unit |
-
2006
- 2006-05-15 IT ITMI20060952 patent/ITMI20060952A1/en unknown
-
2007
- 2007-05-09 ES ES07009277T patent/ES2412859T3/en active Active
- 2007-05-09 EP EP20070009277 patent/EP1857685B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP1857685A3 (en) | 2009-02-18 |
| ITMI20060952A1 (en) | 2007-11-16 |
| EP1857685B1 (en) | 2013-04-10 |
| EP1857685A2 (en) | 2007-11-21 |
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