EP0092064A2 - Dispositif pour commander un organe coulissant, en particulier un tiroir d'un distributeur - Google Patents

Dispositif pour commander un organe coulissant, en particulier un tiroir d'un distributeur Download PDF

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Publication number
EP0092064A2
EP0092064A2 EP83102910A EP83102910A EP0092064A2 EP 0092064 A2 EP0092064 A2 EP 0092064A2 EP 83102910 A EP83102910 A EP 83102910A EP 83102910 A EP83102910 A EP 83102910A EP 0092064 A2 EP0092064 A2 EP 0092064A2
Authority
EP
European Patent Office
Prior art keywords
actuating
piston
sliding body
pressure
spring
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
Application number
EP83102910A
Other languages
German (de)
English (en)
Other versions
EP0092064A3 (en
EP0092064B1 (fr
Inventor
Reiner Bartholomäus
Michel Rivolier
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.)
Bosch Rexroth AG
Original Assignee
Mannesmann Rexroth AG
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
Application filed by Mannesmann Rexroth AG filed Critical Mannesmann Rexroth AG
Publication of EP0092064A2 publication Critical patent/EP0092064A2/fr
Publication of EP0092064A3 publication Critical patent/EP0092064A3/de
Application granted granted Critical
Publication of EP0092064B1 publication Critical patent/EP0092064B1/fr
Expired legal-status Critical Current

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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86614—Electric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated
    • Y10T137/87209—Electric

Definitions

  • the invention relates to a device with the features specified in the preamble of claim 1.
  • both actuating devices must be arranged at one end and there are difficulties in that the actuating forces acting on them the sliding body act, should be the same size in both adjustment directions.
  • the object on which the invention is based is therefore to design the device of the type described at the outset in such a way that, when the two adjusting devices are arranged on one side, the adjusting forces in both directions of movement of the sliding body are the same with simple means.
  • a second solution according to the invention is carried out with the features specified in claim 4. If the circular surface of the actuating piston is acted upon, the pressure applied by the associated actuating device is also transmitted to the annular surface, thus generating a counter pressure. Since the area ratio of the ring area to the circular area is 1: 2, the different actuating forces are compensated in a purely hydraulic way, so that the compensating spring can be omitted. The adjustment forces in both directions of movement of the sliding body are thus the same.
  • the device according to the invention is suitable both for actuating the spool of directional valves, but also for other valves and in particular also for actuating the pistons of variable pumps.
  • a spool 10 is slidably disposed in a housing bore 11 of a valve housing 12.
  • the pressure medium paths to and from a consumer are not shown.
  • the sliding body 10 could also be connected to the adjusting device of a variable pump.
  • an actuating piston 14 is attached, which has a larger diameter than the spool 10.
  • the actuating piston 14 divides two pressure spaces 16 and 17 from the housing 15.
  • the pressure in the control chamber 16 is controlled by the control device 18 and the pressure in the control room 17 by the control device 19.
  • the pressure in the control chamber 17 acts on the circular surface 20 of the adjusting piston 14, while the pressure in the control chamber 16 acts on the annular surface 21 of the adjusting piston, which results from the difference between the outside diameter of the adjusting piston and the diameter of the piston slide 10.
  • a compensating spring 24 is supported at one end on a stop of the housing 12 and at the other end on a spring plate 25 which is pressed by the spring 24 against a housing stop 26, whereby the on the spring plate supported adjusting piston 14 and thus the piston valve 10 is pressed into the starting position shown.
  • a return spring 27 is provided, one end of which is also supported on the spring plate 25 and the other end of which is supported on a spring holder 28 which, in the starting position shown, is supported on a collar 29 of the slide piston and on the stop of the housing 12.
  • FIG. 2 shows a section through one of the adjusting devices 18 and 19.
  • the actuating device consists of a proportional magnet 30, the plunger 31 of which acts in a known manner on a piston 32 which works against a compression spring 33.
  • the pressure at the pressure connection 34 which is connected to the control chamber 16 or the control chamber 17, is set in a current-dependent manner by energizing the proportional magnet 30.
  • the plunger 31 of the magnet armature displaces the control piston 32 against the compression spring 33. Pressure medium then flows from the one with Pressure medium source connected port 35 to port 34.
  • the actuating device 19 If, on the other hand, the actuating device 19 is actuated, the pressure in the space 17 acts on the circular surface 20 and the piston slide 10 is displaced upwards, the return spring also being compressed again, in addition to the return spring, but also the compensating spring 24, which is supported on the housing stop 12 .
  • the compensating spring 24 must be dimensioned such that it compensates for the difference in the actuating forces, which is caused by the fact that the same pressure, which is actuated by the actuating devices, applies to actuating surfaces of different sizes, namely to the circular surface 20 and to the annular surface 21 of the actuating piston 14 works.
  • FIG. 3 shows a modified embodiment in which a sliding body 10 is also connected to an actuating piston 14, which divides a control chamber 17 from a control chamber 16. Each control room is in turn connected to an actuating device 18 or 19.
  • a return spring 27 is in turn arranged between the actuating piston 14 and the piston slide 10, which is supported at one end on the spring plate 25 already described and at its other end on a spring holder 28. A compensation spring is not provided.
  • FIG. 4 the control piston 14 and the control rooms 16 and 17 are shown schematically.
  • the actuators 18 to 19 are provided with the pressure reducing valves 38 and 39 described with reference to FIG. 2, their connections being provided with the reference numerals used in FIG. 2 in FIG. 4. If the actuator 18 is actuated, the connections 35 and 34 are connected to one another at the pressure reducing valve 38, so that pressure medium is in the control Room 16 arrives and the actuating piston 14 moves to the right, the displaced volume flowing to the tank connection 36 of the pressure reducing valve 38.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Fluid Pressure (AREA)
  • Servomotors (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fluid-Driven Valves (AREA)
EP83102910A 1982-04-21 1983-03-24 Dispositif pour commander un organe coulissant, en particulier un tiroir d'un distributeur Expired EP0092064B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3214845 1982-04-21
DE19823214845 DE3214845A1 (de) 1982-04-21 1982-04-21 Vorrichtung zum betaetigen eines schiebekoerpers, insbesondere des kolbenschiebers eines wegeventils

Publications (3)

Publication Number Publication Date
EP0092064A2 true EP0092064A2 (fr) 1983-10-26
EP0092064A3 EP0092064A3 (en) 1984-07-25
EP0092064B1 EP0092064B1 (fr) 1987-02-25

Family

ID=6161557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102910A Expired EP0092064B1 (fr) 1982-04-21 1983-03-24 Dispositif pour commander un organe coulissant, en particulier un tiroir d'un distributeur

Country Status (4)

Country Link
US (1) US4519573A (fr)
EP (1) EP0092064B1 (fr)
JP (1) JPS5917005A (fr)
DE (2) DE3214845A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388635A1 (fr) * 1989-03-22 1990-09-26 Robert Bosch Gmbh Dispositif de commande électrohydraulique
DE4011908A1 (de) * 1990-02-06 1991-08-08 Festo Kg Mehrwegeventil
DE4042518C2 (de) * 1990-02-06 1996-05-23 Festo Kg Mehrwegeventil

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3404598A1 (de) * 1984-02-09 1985-08-14 Mannesmann Rexroth GmbH, 8770 Lohr Speicherladeventil mit druckabsicherung des speicherkreises
DE3690051C1 (de) * 1985-02-23 1997-09-18 Barmag Barmer Maschf Proportionalventil mit einem einstellbaren Drosselventil zwischen Pumpe und Last sowie einer Druckwaage
DE3639178A1 (de) * 1986-11-15 1988-05-26 Wabco Westinghouse Fahrzeug Tuerventil
DE3841985A1 (de) * 1988-12-14 1990-06-21 Kloeckner Humboldt Deutz Ag Elektrohydraulische servo-betaetigung von standardwegeventilen
DE19512007A1 (de) * 1995-03-31 1996-10-02 Rexroth Mannesmann Gmbh Hydraulisch betätigbares Wegeventil
AT515661B1 (de) 2014-11-21 2015-11-15 Blum Gmbh Julius Stellantrieb für bewegbare Möbelteile

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR559284A (fr) * 1922-01-19 1923-09-12 Buehler Ag Geb Piston différentiel pour cylindres hydrauliques
FR1309571A (fr) * 1961-12-20 1962-11-16 Bergomi Spa Dispositif pour la variation automatique, en fonction de la charge extérieure, de la vitesse d'expansion et de la force exercée pendant l'expansion de vérins hydrauliques à double effet
US3863672A (en) * 1973-09-06 1975-02-04 B W B Controls Inc Dual action pilot
FR2273178A1 (fr) * 1974-05-31 1975-12-26 Bennes Marrel
FR2312675A1 (fr) * 1975-05-29 1976-12-24 Bennes Marrel Sa Dispositif de commande d'un gros distributeur hydraulique, notamment pour engins de travaux publics
DE2533829A1 (de) * 1975-07-29 1977-02-17 Bosch Gmbh Robert Elektrohydraulische steuereinrichtung
DE2140972B2 (de) * 1970-09-30 1978-07-13 Sperry Rand Corp., Troy, Mich. (V.St.A.) Indirekt steuerbares Servoventil
DE2112813B2 (de) * 1971-03-17 1980-07-03 Robert Bosch Gmbh, 7000 Stuttgart Elektrohydraulische Steuereinrichtung
DE3043935A1 (de) * 1979-11-21 1981-06-04 Diesel Kiki Co. Ltd., Tokyo Vehtilvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428063A (en) * 1966-10-12 1969-02-18 Whittaker Corp Liquid transfer valve having float control and acceleration responsive pilot valve
US3477466A (en) * 1967-04-03 1969-11-11 Lewis D Sturm Elevator fluid control valve mechanism
DE1807171A1 (de) * 1968-11-06 1970-06-18 Bosch Gmbh Robert Einrichtung zur elektrohydraulischen Fernsteuerung hydraulischer Wegeventile
US3736958A (en) * 1972-04-13 1973-06-05 Lockheed Aircraft Corp Four-way solenoid selector valve
DE2835771A1 (de) * 1978-08-16 1980-02-28 Schwelm & Towler Hydraulics Anordnung zur aussteuerung eines cartridgeelementes

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR559284A (fr) * 1922-01-19 1923-09-12 Buehler Ag Geb Piston différentiel pour cylindres hydrauliques
FR1309571A (fr) * 1961-12-20 1962-11-16 Bergomi Spa Dispositif pour la variation automatique, en fonction de la charge extérieure, de la vitesse d'expansion et de la force exercée pendant l'expansion de vérins hydrauliques à double effet
DE2140972B2 (de) * 1970-09-30 1978-07-13 Sperry Rand Corp., Troy, Mich. (V.St.A.) Indirekt steuerbares Servoventil
DE2112813B2 (de) * 1971-03-17 1980-07-03 Robert Bosch Gmbh, 7000 Stuttgart Elektrohydraulische Steuereinrichtung
US3863672A (en) * 1973-09-06 1975-02-04 B W B Controls Inc Dual action pilot
FR2273178A1 (fr) * 1974-05-31 1975-12-26 Bennes Marrel
FR2312675A1 (fr) * 1975-05-29 1976-12-24 Bennes Marrel Sa Dispositif de commande d'un gros distributeur hydraulique, notamment pour engins de travaux publics
DE2533829A1 (de) * 1975-07-29 1977-02-17 Bosch Gmbh Robert Elektrohydraulische steuereinrichtung
DE3043935A1 (de) * 1979-11-21 1981-06-04 Diesel Kiki Co. Ltd., Tokyo Vehtilvorrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388635A1 (fr) * 1989-03-22 1990-09-26 Robert Bosch Gmbh Dispositif de commande électrohydraulique
DE4011908A1 (de) * 1990-02-06 1991-08-08 Festo Kg Mehrwegeventil
DE4042518C2 (de) * 1990-02-06 1996-05-23 Festo Kg Mehrwegeventil
DE4011908C3 (de) * 1990-02-06 1996-08-14 Festo Kg Mehrwegeventil

Also Published As

Publication number Publication date
EP0092064A3 (en) 1984-07-25
EP0092064B1 (fr) 1987-02-25
US4519573A (en) 1985-05-28
JPS5917005A (ja) 1984-01-28
DE3214845C2 (fr) 1990-03-15
DE3369872D1 (en) 1987-04-02
DE3214845A1 (de) 1983-11-03

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