EP0686775B2 - Elektropneumatische Ventileinrichtung - Google Patents
Elektropneumatische Ventileinrichtung Download PDFInfo
- 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
- Authority
- 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
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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.
Description
Bei diesen Längsschiebern 61, 62 ist die Lage der Steuerkanten 34, 35 so gewählt, daß beide Ventile die Funktion "Normal-Offen" haben. Dies bedeutet, daß bei nicht erregten Ventilen die Verbindung vom Zulaufanschluß 24 zum Verbraucheranschluß 26 geöffnet ist, während die Verbindung vom letzterem zum Rücklaufanschluß 28 blockiert ist; dies ist in Figur 2 mit den in Ruhestellung befindlichen Längsschiebern 61, 62 dargestellt. Bei der Ventileinrichtung 60 sind somit beide Wegeventile für eine Funktion "Normal-Offen" ausgeführt. Die Wirkungsweise der Ventileinrichtung 60 entspricht im übrigen sinngemäß derjenigen der Ventileinrichtung 10.
Claims (11)
- Elektropneumatische Ventileinrichtung (10) zur unabhängigen Steuerung zweier Verbraucheranschlüsse (25, 26) über jeweils eines von zwei elektrisch ansteuerbaren Ventilen (55, 56) von denen jedes Ventil mit 3/2-Funktion ausgebildet ist und ein Steuerglied (32, 33) aufweist, das zwischen einen Zulaufanschluß (24) zur Versorgung beider Ventile (55, 56) mit Druckmittel, den Verbraucheranschluß (25, 26) sowie einen Rücklaufanschluß (27, 28) geschaltet ist und bei der die beiden Ventile (55, 56) und die Anschlüsse (24, 27, 28) im wesentlichen in einer Ebene angeordnet sind, so daß die Ventileinrichtung (10) in einer Ventilbaugruppe zum Anbau auf eine Grundplatte geeignet ist, dadurch gekennzeichnet, daß die Ventileinrichtung (10) ein Standardgehäuse (14) eines 5-Wegeventils aufweist, das eine durchgehende Schieberbohrung (15) hat, in der fünf Kammern (18, 19, 21, 22, 23) nebeneinanderliegend angeordnet sind, die mit mindestens einem Zulaufanschluß (24), den zwei Verbraucheranschlüssen (25, 26) und mindestens einem Rücklaufanschluß (27, 28) verbunden sind, daß in der Schieberbohrung (15) die zwei Steuerglieder gleitend geführt sind, die jeweils als druckmittelbetätigbare Längsschieber (32, 33) ausgebildet sind, die entsprechend ihrer 3/2-Funktion zwei Steuerkanten (34, 35) aufweisen und von jeweils einem Antriebskolben (42, 51) betätigbar sind, daß beide elektromagnetisch betätigbaren Vorsteuerventile (38, 39) zum Steuern der Antriebskolben (42, 51) gemeinsam auf einer einzigen Stirnseite (16) des Standardgehäuses (14) angeordnet sind und daß am Standardgehäuse (14) die Schieberbohrung (15) zwischen zwei Stirnseiten (16, 17) verläuft, an denen einerseits ein die Vorsteuerventile (38, 39) aufnehmender Vorsteuermodul (12) und andererseits ein Deckel (13) angebaut sind.
- Ventileinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Antriebskolben (42, 51) von den Längsschiebern (32, 33) getrennte Bauelemente sind, und außerhalb des Standardgehäuses (14) in den angebauten Teilen (11, 13) gleitend geführt sind.
- Ventileinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an jedem Längsschieber (32, 33) eine Rückstellfeder (37, 37') anliegt, die zusätzlich am Standardgehäuse (14) abgestützt ist.
- Ventileinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die wirksame, druckbeaufschlagte Fläche des Antriebskolbens (42, 51) größer ist, als die druckbeaufschlagte Fläche des Längsschiebers (32, 33) in der Kammer (21).
- Ventileinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß im Standardgehäuse (14) von den fünf Anschlüssen der in axialer Richtung gesehen mittig liegende Anschluß (24) für den Zulauf (P) dient, neben dem zu beiden Seiten die Verbraucheranschlüsse (25, 26) liegen, während die beiden Rücklaufanschlüsse (27, 28) außen liegen.
- Ventileinrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die beiden Verbraucheranschlüsse (25, 26) in eine Querseite (29) des Standardgehäuses (14) verlaufen, während in die andere Querseite (31) der Zulaufanschluß (24) und die beiden Rücklaufanschlüsse (27, 28) verlaufen.
- Ventileinrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß durch das Standardgehäuse (14) Steuerkanäle (53, 46, 47) verlaufen, von denen einer (53) vom Vorsteuerventil (39) zum Antriebskolben (57) im Deckel (13) führt.
- Ventileinrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die beiden Längsschieber (31, 32) für eine Funktion Normal-Geschlossen (Fig. 1) ausgebildet sind.
- Ventileinrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die beiden Längsschieber (61, 62) für eine Funktion Normal-Offen (Fig. 2) ausgebildet sind.
- Ventileinrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß ein Längsschieber (62) für eine Funktion Normal-Offen und der andere Längsschieber (32) für eine Funktion Normal-Geschlossen ausgeführt ist.
- Ventileinrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß das Vorsteuergehäuse (43) eine sacklochartige Ausnehmung (41) aufweist, in der der Antriebskolben (42) für den ersten Längsschieber (32) geführt ist.
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 (de) | 1995-12-13 |
EP0686775B1 EP0686775B1 (de) | 1998-07-08 |
EP0686775B2 true EP0686775B2 (de) | 2001-12-05 |
Family
ID=6517648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95106525A Expired - Lifetime EP0686775B2 (de) | 1994-05-07 | 1995-04-29 | Elektropneumatische Ventileinrichtung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0686775B2 (de) |
DE (2) | DE4416285A1 (de) |
Families Citing this family (9)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0663532B1 (de) † | 1994-01-13 | 1998-05-06 | FESTO AG & Co | Mehrwegeventil |
Family Cites Families (5)
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 |
-
1994
- 1994-05-07 DE DE4416285A patent/DE4416285A1/de not_active Ceased
-
1995
- 1995-04-29 DE DE59502737T patent/DE59502737D1/de not_active Expired - Fee Related
- 1995-04-29 EP EP95106525A patent/EP0686775B2/de not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0663532B1 (de) † | 1994-01-13 | 1998-05-06 | FESTO AG & Co | Mehrwegeventil |
Also Published As
Publication number | Publication date |
---|---|
EP0686775B1 (de) | 1998-07-08 |
DE4416285A1 (de) | 1995-11-09 |
EP0686775A1 (de) | 1995-12-13 |
DE59502737D1 (de) | 1998-08-13 |
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