EP0817918B1 - Distributeur a commande hydraulique - Google Patents

Distributeur a commande hydraulique Download PDF

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Publication number
EP0817918B1
EP0817918B1 EP96905853A EP96905853A EP0817918B1 EP 0817918 B1 EP0817918 B1 EP 0817918B1 EP 96905853 A EP96905853 A EP 96905853A EP 96905853 A EP96905853 A EP 96905853A EP 0817918 B1 EP0817918 B1 EP 0817918B1
Authority
EP
European Patent Office
Prior art keywords
control
valve
tank
channel
pilot
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
EP96905853A
Other languages
German (de)
English (en)
Other versions
EP0817918A1 (fr
Inventor
Rainer Biener
Richard Rauscher
Winfried RÜB
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 EP0817918A1 publication Critical patent/EP0817918A1/fr
Application granted granted Critical
Publication of EP0817918B1 publication Critical patent/EP0817918B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • F15B13/0435—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being sliding 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
    • Y10T137/87233—Biased exhaust valve
    • Y10T137/87241—Biased closed
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49405—Valve or choke making
    • Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
    • Y10T29/49416—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting
    • Y10T29/49417—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting including molding or casting

Definitions

  • the invention relates to an electromagnetically actuated Pilot valves with small nominal widths to be controlled hydraulically Actuated directional valve, in particular proportional directional valve.
  • pilot valves on the side of the directional valve housing attach the pilot valves as cartridge assemblies train and parallel to the actuating axis of the control piston screw the directional valve into the directional valve housing and the pilot valves through separate holes in the directional valve housing connect hydraulically to the directional control valve.
  • Such Training and arrangement of the pilot valves in the directional control valve housing requires complex production of the connecting holes, especially since they are sealed leak-free and pressure-tight on the outside Need to become.
  • the pilot valves are concerned are proportional adjustable throttle valves with only two Connections.
  • the object of the invention is therefore to provide training and to arrange the pilot valves on the directional control valve, which an inexpensive manufacture of the directional control valve with pilot valves guaranteed especially in large series production. This is achieved with the features of claim 1.
  • 1 is the cast housing of the directional control valve designated, in a through bore 2, a control piston 3 records.
  • the control piston is at its end faces 3a, 3b fixed by springs 4, 5 in its starting position shown.
  • the Springs are supported with their ends facing away from the control piston on hollow end screws 6, 7.
  • the face of the control piston limit control rooms to which control fluid can be applied 8, 9, the channels 10, 11 with the respective exit spaces 12, 13 of the electromagnetically actuated as cartridges trained pilot valves 14, 15 are connected.
  • the Pilot valves are designed as pressure control valves and in corresponding recesses 16, 17 screwed into the cast housing 1.
  • the control pressure acting in the control rooms 8, 9 shifts the Control piston 3 against the force of the respective spring 4, 5, wherein depending on the direction of displacement of the control piston, the consumer connection duct 20 either with the pump or the tank connection P, T is connected.
  • the actuation axes 21, 22 of the pilot valves run parallel to each other and perpendicular to the actuation axis 23 of the control piston 3. This results in a special simple ducting for the supply and discharge of the Control fluid to and from the pilot valves.
  • standing connection bores 25 of the pilot valves are on cast channels 26, 27 running parallel to each other Cast housing adapted, the supply channel 26 with the control pressure medium source P1 and the tank channel 27 with the tank T in Connection is established.
  • the supply channel is a transverse one channel-shaped recess 30 with the through hole 2 for the control piston 3 connected.
  • the control piston 3 is at the junction 3c tapers in a neck shape and therefore points to it Set up a smaller diameter. This results in a control edge 3d, with a corresponding control edge 2d the through hole cooperates.
  • the control edge 2d results by extending the through hole to a control room 32, via a connecting channel 31 with the control room 33 of a control piston 34 for a check valve Holding piston 35 for the consumer, not shown communicates.
  • the control piston has a blind bore 34a with two radially running bores 34b, 34c, the control chamber 33 of the control piston via the bore 34b with open control edge 3d of the control piston 3 control fluid can be fed from the connecting channel 31 and via the bore 34c acting as a throttle small diameter to Resetting the control piston control fluid from the Control room 33 for the connection to the tank connection T. Room 37 should be displaced.
  • the control piston 3 has grooves milled in the control piston formed control edges 3e, 3f, depending on the direction of displacement of the control piston the connection of the holding piston 35 control room 38 connected to the consumer with that associated with the work equipment source P. Control room 39 or with that connected to the tank Establish control room 40.
  • actuating one actuating magnet at a time of the pilot valve in question is one of the supplied electrical current corresponding control pressure at the pilot valve 14, 15 set in the control room concerned 8, 9 of the control piston 3 the latter against the force of each opposite spring 4, 5 moves, to the extent that the increasing spring force corresponds to a control pressure.

Landscapes

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

Claims (2)

  1. Un distributeur actionné par voie hydraulique, en particulier un distributeur proportionnel actionné par voie hydraulique, dont le tiroir (3) de commande peut être piloté par deux valves (14, 15) de pilotage de faible calibre, lesquelles sont conçues sous forme de valves en cartouche, sont positionnées dans des forages (16, 17) d'insertion dans le corps (1) du distributeur moulé et sont actionnées par voie électromagnétique,
       cependant que chacune des deux valves (14, 15) de pilotage possède un axe (21, 22) de fonctionnement, lequel est orienté perpendiculairement à l'axe (23) de fonctionnement du tiroir (3) de commande et parallèlement à l'axe (21, 22) de fonctionnement de l'autre valve (14, 15) de pilotage et lequel est placé, dans la direction de l'axe (23) de fonctionnement, à une certaine distance de l'axe (21, 22) de fonctionnement de l'autre valve (14, 15) de pilotage selon le cas, ainsi qu'un raccord (24) d'alimentation, un raccord (25) de réservoir et un raccord (12, 13) de commande, lequel est raccordé selon le cas à une chambre (8, 9) de commande au niveau du tiroir (3) de commande,
       caractérisé en ce
       que les raccords (24) d'alimentation des deux valves (14, 15) de pilotage sont raccordés entre eux et avec la source de fluide de pression de commande au travers d'un canal (26) d'alimentation commun, moulé dans le corps (1) du distributeur et allant d'un forage (16, 17) d'insertion à l'autre, que les raccords (25) de réservoir des deux valves (14, 15) de pilotage sont raccordés entre eux et avec le réservoir au travers d'un canal (27) de réservoir commun, moulé dans le corps (1) du distributeur et allant d'un forage (16, 17) d'insertion à l'autre, que le canal (26) d'alimentation et le canal (27) de réservoir sont parallèles entre eux et parallèles à l'axe (23) de fonctionnement du tiroir (3) de commande et que les raccords (24) d'alimentation et les raccords (25) de réservoir des valves (14, 15) de pilotage sont adaptés à la disposition du canal (26) d'alimentation et du canal (27) de réservoir.
  2. Un distributeur actionné par voie hydraulique, conforme à la revendication n°1, avec un clapet (35) anti-retour déverrouillable servant de valve de retenue au récepteur hydraulique raccordé, caractérisé en ce que le fluide de pression de commande pour le dispositif (34, 43) de déverrouillage de la valve (35) de retenue est alimenté vers la chambre (33) de commande du dispositif (34) de déverrouillage par un canal (30, 31) supplémentaire, qui débouche dans le canal (26) d'alimentation, qui est orienté perpendiculairement à celui-ci et qui est moulé dans le corps (1) du distributeur, et qu'une même source (P1) de fluide de pression est dédiée au canal (26) d'alimentation et au canal (30, 31) supplémentaire, cependant que l'embouchure de la source de fluide de pression est prévue dans la suite du canal (30, 31), entre les deux valves (14, 15) de pilotage.
EP96905853A 1995-03-31 1996-03-02 Distributeur a commande hydraulique Expired - Lifetime EP0817918B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19512007 1995-03-31
DE1995112007 DE19512007A1 (de) 1995-03-31 1995-03-31 Hydraulisch betätigbares Wegeventil
PCT/EP1996/000886 WO1996030653A1 (fr) 1995-03-31 1996-03-02 Distributeur a commande hydraulique

Publications (2)

Publication Number Publication Date
EP0817918A1 EP0817918A1 (fr) 1998-01-14
EP0817918B1 true EP0817918B1 (fr) 2000-05-10

Family

ID=7758370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96905853A Expired - Lifetime EP0817918B1 (fr) 1995-03-31 1996-03-02 Distributeur a commande hydraulique

Country Status (4)

Country Link
US (1) US5913333A (fr)
EP (1) EP0817918B1 (fr)
DE (2) DE19512007A1 (fr)
WO (1) WO1996030653A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19646425A1 (de) * 1996-11-11 1998-05-14 Rexroth Mannesmann Gmbh Ventilanordnung
PL333366A1 (en) * 1996-11-11 1999-12-06 Mannesmann Rexroth Ag Arrangement of check valves
DE19646447A1 (de) * 1996-11-11 1998-05-14 Rexroth Mannesmann Gmbh Ventilgehäuse
US6990999B2 (en) * 2003-05-05 2006-01-31 Kjp Investments Llc Digitally controlled modular valve system
CN106122141B (zh) * 2016-05-31 2018-04-03 上海人豪液压技术有限公司 采用模块化可配组插装阀rhcv组合的电液控制终端
USD902969S1 (en) * 2019-04-29 2020-11-24 The Boeing Company Hydraulic manifold for semi-levered gear actuator
USD900897S1 (en) * 2019-05-09 2020-11-03 The Boeing Company Return boss for a hydraulic manifold for actuator control with dual solenoids
USD900895S1 (en) * 2019-05-09 2020-11-03 The Boeing Company Mounting pads for a routing box on a hydraulic manifold for actuator control with dual solenoids
USD900899S1 (en) * 2019-05-09 2020-11-03 The Boeing Company Flow passage contours for a hydraulic manifold for actuator control with dual solenoids
USD900898S1 (en) * 2019-05-09 2020-11-03 The Boeing Company Supply port boss and return port boss for a hydraulic manifold for actuator control with dual solenoids
USD900894S1 (en) * 2019-05-09 2020-11-03 The Boeing Company Hydraulic manifold for actuator control with dual solenoids
USD900896S1 (en) * 2019-05-09 2020-11-03 The Boeing Company Supply boss for a hydraulic manifold for actuator control with dual solenoids

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046165A (en) * 1975-06-04 1977-09-06 Ibec Industries, Inc. Valve-positioning apparatus
US4126293A (en) * 1976-07-16 1978-11-21 Control Concepts, Inc. Feathering valve assembly
US4290447A (en) * 1979-10-05 1981-09-22 Dynex/Rivett Inc. Electrohydraulic proportional valve
DE2943256A1 (de) * 1979-10-26 1981-05-07 Erwin Hengstler Hydraulik GmbH, 7613 Hausach Elektrohydraulische steuerung
DE3214845A1 (de) * 1982-04-21 1983-11-03 Mannesmann Rexroth GmbH, 8770 Lohr Vorrichtung zum betaetigen eines schiebekoerpers, insbesondere des kolbenschiebers eines wegeventils
US4569273A (en) * 1983-07-18 1986-02-11 Dynex/Rivett Inc. Three-way proportional valve
WO1991014121A1 (fr) * 1990-03-05 1991-09-19 Komatsu Zenoah Kabushiki Kaisha Soupape hydraulique de commande
JPH06193750A (ja) * 1992-12-22 1994-07-15 Komatsu Ltd 油圧バルブ装置

Also Published As

Publication number Publication date
WO1996030653A1 (fr) 1996-10-03
DE59605189D1 (de) 2000-06-15
US5913333A (en) 1999-06-22
EP0817918A1 (fr) 1998-01-14
DE19512007A1 (de) 1996-10-02

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