EP0686775B2 - Dispositif de vanne électropneumatique - Google Patents

Dispositif de vanne électropneumatique Download PDF

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Publication number
EP0686775B2
EP0686775B2 EP95106525A EP95106525A EP0686775B2 EP 0686775 B2 EP0686775 B2 EP 0686775B2 EP 95106525 A EP95106525 A EP 95106525A EP 95106525 A EP95106525 A EP 95106525A EP 0686775 B2 EP0686775 B2 EP 0686775B2
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EP
European Patent Office
Prior art keywords
valve device
valve
pilot
connection
connections
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.)
Expired - Lifetime
Application number
EP95106525A
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German (de)
English (en)
Other versions
EP0686775A1 (fr
EP0686775B1 (fr
Inventor
Francisco Dipl. Ing. Krauser
Pierre Bonino
Emile Francoz
Rolf Dipl. Ing. Meier
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0686775A1 publication Critical patent/EP0686775A1/fr
Application granted granted Critical
Publication of EP0686775B1 publication Critical patent/EP0686775B1/fr
Publication of EP0686775B2 publication Critical patent/EP0686775B2/fr
Anticipated expiration legal-status Critical
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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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves

Definitions

  • the invention is based on an electropneumatic Valve device for independent control two. Consumer connections according to that in the preamble of claim 1 specified genus.
  • valve device for independent control of two consumer connections known from DE 42 26 539 A1, as used in valve carrier systems for better utilization of the limited valve positions is used, whereby Different valve series on one valve position can be arranged at the same time.
  • Valve device are on one of the two consumer connections having connection plate electromagnetically operated 3/2 valves on both ends grown. Both 3/2 valves and the connection plate sit on an adapter plate, which in turn is on a Base plate of the valve carrier system is attached.
  • the adapter plate contains also the two electrical plug connections for the two 3/2 valves and a plug connection for connection to the base plate.
  • valve device Even though with this valve device through better use of space a larger number of control functions specified number of valve positions can be accommodated is, this valve device builds in terms of costs and Installation space is relatively expensive. The flow rates are also to the consumer connections at this Limited design, especially as direct operated 3/2 valves be used. The variety of connectors and components also increases the susceptibility to faults in the Operation and complicates the assembly.
  • DE 40 20 024 A1 is electromagnetic actuated directional valve known as 5/2 valve is designed, both of which for pilot control serving solenoid valves on a single face of the actual directional valve are arranged.
  • the directional valve comes without an adapter plate with a single electrical connector; however, is between the actual case and the Pilot valves require an intermediate plate that has a plurality of control channels.
  • the drive pistons for the main spool directly performed in the directional control valve housing which is a complex Construction caused. But above all, this is 5/2-way valve designed for only one control function, how to control a double acting Consumer is needed. In many applications an optimal design is not possible, in particular in valve carrier systems.
  • EP 0 139 259 B1 is an electrohydraulic one Control valve known in the case of a housing two electromagnetically actuated coaxially pilot operated, 3/2 valves are installed. Both 3/2 valves are identical to each other and in a complex Seat valve design, so that overall four switching combinations are possible and the connected one double-acting engine not only in both Directions can be moved, but also in brought a blocking position and a floating position can be. This valve is also designed so that it is only for a control function to control a double-acting consumer.
  • the one in hydraulics Seat valve design used is suitable not for pneumatic valve carrier systems.
  • the electropneumatic valve device according to the invention for independent control of two consumer connections with has the characteristic features of the main claim on the other hand the advantage that with simple and cost-effective design better with a given installation space Control functions can be used. This allows in valve carrier systems at a valve position use different valve series together, whereby especially two 3/2-way valves can be easily accommodated can.
  • FIG. 1 shows a partial Longitudinal section through an electropneumatic Valve device for independent control of two A simplified representation of consumer connections and Figures 2 and 3, a second and third embodiment the electropneumatic valve device with other longitudinal slides for different ones Functional variants.
  • FIG 1 is a simplified representation electropneumatic valve device 10 partially in Longitudinal section and partially shown schematically as them in a valve carrier system at a valve position Base plate can be mounted.
  • the valve device 10 essentially consists of a valve module 11, a pilot control module 12 and a cover 13, which are all built together.
  • the valve module 11 has a standard housing 14 of a 5/2-way valve in which a continuous Slider bore 15 between its two end faces 16, 17 runs.
  • a slide bore 15 In the slide bore 15 are through ring-shaped extensions five side by side Chambers 18, 19, 21, 22, 23 formed by which the central chamber 21 with a P designated inlet port 24 is connected.
  • the too chambers lying on both sides of the third chamber 21 19 and 22 are with the consumer connections 25, 26 connected, which are designated here with A and B, respectively.
  • the remaining outer chambers 18, 23 are connected to return ports 27, 28 which with R are designated. While the two consumer connections 25, 26 upwards in the standard housing 14 are led to a transverse side 29, the inlet connection 24 and the two return connections 27, 28 in a lower transverse side 31.
  • first and a second Longitudinal slide 32, 33 installed and in the slide bore 15 tightly and smoothly guided.
  • Both longitudinal slides 32, 33 are identical to one another and assign for the function of a 3/2 valve each two control edges 34, 35.
  • Each longitudinal slide 32, 33 has an outer piston portion 36 with which it can strike the standard housing 14 and thus one End position of the longitudinal slide 32 or 33 marked.
  • a return spring is located on this piston section 36 37 with its other end in the standard housing 14 supports. Because the two longitudinal slides are of the same design, are the same components on second longitudinal slide 33 with the same reference numerals, but provided with an apostrophe.
  • pilot control module 12 On the first end face 16 of the standard housing 14, the pilot control module 12 is attached, which in its Inside a first pilot valve 38 and a second Pilot valve 39 receives. Both pilot valves 38, 39 are identical to one another and designed as 3/2-way valves, which can be operated electromagnetically against spring force are.
  • the first pilot valve 38 is used for Control of the first longitudinal slide 32, the second Pilot valve 39 correspondingly for the second longitudinal slide 33.
  • the drive piston 42 is thus outside the Standard housing 14 in the pilot housing 43 of the Valve module 11 stored, and forms one of the first Longitudinal slide 32 separate component, which is concentric is mounted to the longitudinal slide valve and when pressurized in a pressure chamber 44 the first longitudinal slide 32 can operate.
  • the pressure chamber 44 is closed this purpose via a first control line 45 with the Pilot valve 38 connected.
  • the first is Control valve 38 via a pressure control line 46 with the inlet connection 24 in connection.
  • To this Pressure control line 46 is parallel to the first pilot valve 38 also connected the second pilot valve 39.
  • leads from the first pilot valve 38 a sequence control line 47 to the return connection 27, the second pilot valve 39 also correspondingly here is connected in parallel.
  • On the pilot module 12 is also an electrical connector 48 arranged, via which the control signals for the two Pilot valves 38, 39 can be entered.
  • a second drive piston 51 On the second end face 17 of the valve module 11 the lid 13 is attached, the in a blind hole Recess 49 receives a second drive piston 51.
  • This drive piston 51 is also from the second Longitudinal slide 33 formed separately and thus only stored in the lid 13.
  • the drive piston 51 limits a pressure chamber 52, which via a second control line 53 has connection with the second pilot valve 39, this control line 53 through the standard housing 14 passed into the pilot housing 43 is.
  • the first pilot valve 38 and the first longitudinal slide 32 with the associated drive piston 42 thus form parts of a pilot-operated, first 3/2-way valve 55, while the second pilot valve 39 with the second longitudinal slide 33 and the drive piston 51 forms a second, pilot-operated 3/2-way valve, both of which can be controlled independently of one another.
  • the control edges are in both directional control valves 55, 56 34, 35 on the longitudinal slides 32 and 33, respectively, that the valves are of a type that are "normally closed” referred to as. This means that at non-energized pilot valves 38, 39 the longitudinal slide 32, 33 each assume their spring-centered end position, in each of which the connection from the inlet connection 24 to the assigned consumer connection 25 or 26 is blocked.
  • the first pilot valve 38 becomes magnetic actuated against spring force, so that from the inlet connection P via the pressure control line 46, the pilot valve 38 and the first control line 45 supply air in the first Pressure chamber 44 can flow and there the first drive piston 42 acted upon.
  • the pressurized effective cross section of the drive piston 42 is essential greater than that in the chamber 21 from the inlet pressure end face of the first longitudinal slide 32, so that the longitudinal slide 32 against the force the return spring 37 moved into the working position becomes.
  • the one separately stored in the pilot housing 43 Drive piston 42 can not apply any radial forces exert the longitudinal slide 32.
  • Das Standard housing 14 and the pilot module 12 are designed so that it without an additional adapter plate directly on the base plate in a valve carrier system can be assembled.
  • FIG. 2 shows a second electropneumatic valve device 60 which differs from that according to FIG. 1 only in that it uses two other longitudinal slides 61, 62 which are identical to one another.
  • the position of the control edges 34, 35 is selected so that both valves have the "normally open” function. This means that when the valves are not energized, the connection from the inlet connection 24 to the consumer connection 26 is open, while the connection from the latter to the return connection 28 is blocked; this is shown in FIG. 2 with the longitudinal slides 61, 62 in the rest position.
  • both directional control valves are designed for a “normally open” function.
  • the mode of operation of the valve device 60 corresponds otherwise to that of the valve device 10.
  • FIG. 3 shows in simplified form a third valve device 70, in which in the standard housing 17 in first directional valve 55 a first longitudinal slide 32 for the function "normally closed” and in the second directional valve 56 a second longitudinal slide 62 for the function "Normally open” are installed. In this way can 11 different valve variants in the valve module will be realized.
  • the embodiments shown are Changes possible without thinking to deviate from the invention.
  • the standard housing 14 can also be used that the middle terminal 24 with R and the two Connections 27, 28 can be assigned P if necessary.
  • Designs are possible in which longitudinal slides and Drive pistons are integrally formed together. The position of the longitudinal slide 32, 62 in Fig. 3 can also be exchanged.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Driven Valves (AREA)
  • Valve Housings (AREA)

Claims (11)

  1. Dispositif de vanne électropneumatique (10) servant à commander de façon indépendante deux raccords de consommateurs (25, 26) respectivement au moyen d'une de deux vannes (55, 56), à commande électrique, chaque vanne étant une vanne à 3/2 voies avec un organe de commande (32, 33), monté entre un raccord d'admission (24) alimentant les deux vannes (55, 56) en fluide sous pression, le raccord de consommateur (25, 26) et un raccord de retour (27, 28), les deux vannes (55, 56) et les raccords (24, 27, 28) étant essentiellement disposés dans un plan, de telle sorte que le dispositif de vanne (10) convienne à un ensemble à vanne se montant sur une plaque de base,
    caractérisé en ce que
    le dispositif de vanne (10) présente un boítier standard (14) d'un distributeur à 5 voies, qui a un alésage de tiroir (15), allant de bout en bout, à cinq chambres (18, 19, 21, 22, 23), juxtaposées reliées à au moins un raccord d'admission (24), aux deux raccords de consommateurs (25, 26) et à au moins un raccord de retour (27, 28), de telle sorte que les deux organes de commande coulissent dans l'alésage de tiroir (15), ces organes de commande étant respectivement constitués sous la forme de tiroirs longitudinaux (32, 33) actionnés par un fluide sous pression et présentant deux arêtes de commande (34, 35) correspondant à leur fonction de distributeur à 3/2 voies et actionnés respectivement par un piston d'entraínement (42, 51),
    deux vannes pilote (38, 39), à commande électromagnétique, sont disposées pour commander les pistons d'entraínement (42, 51) en commun sur une face frontale unique (16) du boítier standard (14), et l'alésage de tiroir (15) du boítier standard (14) s'étend entre deux faces frontales (16, 17), sur lesquelles sont montés d'une part un module pilote (12) qui reçoit les vannes pilote (38, 39) et d'autre part un couvercle (13).
  2. Dispositif de vanne selon la revendication 1,
    caractérisé en ce que
    les pistons d'entraínement (42, 51) sont des pièces constitutives séparées des tiroirs longitudinaux (32, 33), et sont guidées en coulissement en dehors du boítier standard (14) dans les parties montées (11, 13).
  3. Dispositif de vanne selon l'une des revendications 1 ou 2,
    caractérisé en ce que
    un ressort de rappel (37, 37') s'appuie sur chaque tiroir longitudinal (32, 33) sur le boítier standard (14).
  4. Dispositif de vanne selon l'une des revendications 1 à 3,
    caractérisé en ce que
    la surface active soumise à la pression du piston d'entraínement (42, 51) est plus grande que la surface sollicitée par la pression du tiroir longitudinal (32, 33) dans la chambre (21).
  5. Dispositif de vanne selon l'une des revendications 1 à 4,
    caractérisé en ce que
    dans le boítier standard (14) le raccord (24) du milieu, vu dans le sens axial, qui fait partie des cinq raccords, sert à l'admission (P) et des deux côtés de celui-ci les raccords de consommateurs (25, 26), tandis que les deux raccords de retour (27, 28) se trouvent à l'extérieur.
  6. Dispositif de vanne selon la revendication 5,
    caractérisé en ce que
    les deux raccords de consommateurs (25, 26) s'étendent dans un côté transversal (29) du boítier standard (14), tandis que dans l'autre côté transversal (31) s'étendent le raccord d'admission (24) et les deux raccords de retour (27, 28).
  7. Dispositif de vanne selon l'une des revendications 2 à 6,
    caractérisé en ce que
    le boítier standard (14), est traversé par des canaux de commande (53, 46, 47) dont l'un (53) relie la vanne pilote (39) au piston d'entraínement (57) dans le couvercle (13).
  8. Dispositif de vanne selon l'une des revendications 1 à 7,
    caractérisé en ce que
    les deux tiroirs longitudinaux (31, 32) assurent la fonction « normalement fermé » (figure 1).
  9. Dispositif de vanne selon l'une des revendications 1 à 7,
    caractérisé en ce que
    les deux tiroirs longitudinaux (61, 62) assurent la fonction « normalement ouvert » (figure 2).
  10. Dispositif de vanne selon l'une des revendications 1 à 7,
    caractérisé en ce que
    un tiroir longitudinal (62) assure la fonction « normalement ouvert » et l'autre tiroir longitudinal (32), la fonction « normalement ouvert ».
  11. Dispositif de vanne selon l'une des revendications 1 à 10,
    caractérisé en ce que
    le boítier pilote (43) présente un évidement (41) en forme de trou borgne, dans lequel passe le piston d'entraínement (42) du premier tiroir longitudinal (32).
EP95106525A 1994-05-07 1995-04-29 Dispositif de vanne électropneumatique Expired - Lifetime EP0686775B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4416285A DE4416285A1 (de) 1994-05-07 1994-05-07 Elektropneumatische Ventileinrichtung
DE4416285 1994-05-07

Publications (3)

Publication Number Publication Date
EP0686775A1 EP0686775A1 (fr) 1995-12-13
EP0686775B1 EP0686775B1 (fr) 1998-07-08
EP0686775B2 true EP0686775B2 (fr) 2001-12-05

Family

ID=6517648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95106525A Expired - Lifetime EP0686775B2 (fr) 1994-05-07 1995-04-29 Dispositif de vanne électropneumatique

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EP (1) EP0686775B2 (fr)
DE (2) DE4416285A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE506978C2 (sv) * 1996-07-09 1998-03-09 Mecman Ab Rexroth Ventilanordning för fluidflödesreglering
DE19623446A1 (de) 1996-06-12 1997-12-18 Bosch Gmbh Robert Elektropneumatisch vorgesteuertes Wegeventil
DE19630798A1 (de) * 1996-06-22 1998-01-02 Rexroth Mannesmann Gmbh Vorsteuerung für zwei hydraulisch betätigbare Wegeventile
NL1003536C2 (nl) * 1996-07-08 1998-01-12 Applied Power Inc Schakelinrichting voor een dubbelwerkende hydraulische cilinder.
AT3017U3 (de) 1999-03-18 2000-03-27 Hoerbiger Hydraulik Steueranordnung für einen arbeitszylinder
DE10010877C1 (de) * 2000-02-29 2001-03-22 Mannesmann Ag Mehrwegeventil mit einem entfernbaren Wandelement
DE10107868A1 (de) * 2001-02-20 2002-09-05 Bosch Gmbh Robert Pneumatisches Wegeventil
DE102005002699B4 (de) * 2005-01-19 2011-02-17 Sauer-Danfoss Aps Bremsventilanordung
DE102007054134A1 (de) 2007-11-14 2009-05-20 Hydac Filtertechnik Gmbh Hydraulische Ventilvorrichtung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0663532B1 (fr) † 1994-01-13 1998-05-06 FESTO AG & Co Distributeur à plusieurs voies

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506700A (en) 1983-10-07 1985-03-26 Deere & Company Poppet valve with float function
DE4020024A1 (de) 1990-06-23 1992-01-02 Bosch Gmbh Robert Elektromagnetisch betaetigbares wegeventil
DE4143274C2 (de) * 1991-12-27 1994-03-10 Mannesmann Ag Ventilbaugruppe in Modulbauweise
DE4226539A1 (de) 1992-08-11 1994-02-17 Bosch Gmbh Robert Elektropneumatische Ventilbaugruppe
DE4305607C2 (de) * 1993-02-24 1996-09-19 Bosch Gmbh Robert Ventilblock

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0663532B1 (fr) † 1994-01-13 1998-05-06 FESTO AG & Co Distributeur à plusieurs voies

Also Published As

Publication number Publication date
EP0686775A1 (fr) 1995-12-13
DE4416285A1 (de) 1995-11-09
DE59502737D1 (de) 1998-08-13
EP0686775B1 (fr) 1998-07-08

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