EP1452744B1 - Dispositif de contrôle hydraulique - Google Patents

Dispositif de contrôle hydraulique Download PDF

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Publication number
EP1452744B1
EP1452744B1 EP04004260A EP04004260A EP1452744B1 EP 1452744 B1 EP1452744 B1 EP 1452744B1 EP 04004260 A EP04004260 A EP 04004260A EP 04004260 A EP04004260 A EP 04004260A EP 1452744 B1 EP1452744 B1 EP 1452744B1
Authority
EP
European Patent Office
Prior art keywords
pressure
control
inlet
nozzle
arrangement according
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
EP04004260A
Other languages
German (de)
English (en)
Other versions
EP1452744A1 (fr
Inventor
Armin Stellwagen
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
Bosch 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 Bosch Rexroth AG filed Critical Bosch Rexroth AG
Publication of EP1452744A1 publication Critical patent/EP1452744A1/fr
Application granted granted Critical
Publication of EP1452744B1 publication Critical patent/EP1452744B1/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
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/365—Directional control combined with flow control and pressure control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F15B2211/50572—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using a pressure compensating valve for controlling the pressure difference across a flow control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/57—Control of a differential pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/575—Pilot pressure control
    • F15B2211/5756—Pilot pressure control for opening a valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member
    • F15B2211/761—Control of a negative load, i.e. of a load generating hydraulic energy

Definitions

  • the axial lengths of the above-described frets and grooves are selected such that in the illustrated spring-biased home position of the working port P is shut off (see Figure 2) and the two working ports A, B and the LS port to the tank port T are connected.
  • a hydraulic arrangement with a Zulaufmessblende and a drain metering orifice wherein at least the inlet orifice is associated with a pressure compensator.
  • the pressure compensator is acted upon in the opening direction by a control pressure which is tapped off on a control channel which extends between sections located downstream of the inlet measuring orifice and the drain metering orifice.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Fluid Pressure (AREA)

Claims (10)

  1. Dispositif de commande hydraulique pour l'activation d'un consommateur avec deux diaphragmes de mesure réglables (16, 18) disposés dans une arrivée de fluide sous pression et dans une évacuation de fluide sous pression, une balance de pression (20), laquelle est soumise en direction de la fermeture à une pression en amont du diaphragme de mesure d'arrivée et en direction de l'ouverture à une pression de signalisation plus faible et à la force d'un ressort, étant associée au moins au diaphragme de mesure d'arrivée (16), caractérisé en ce que la pression de signalisation est prélevée sur un canal de commande (24) qui relie entre elles des sections d'arrivée de fluide sous pression et d'évacuation de fluide sous pression qui se trouvent en amont des diaphragmes de mesure (16, 18).
  2. Dispositif de commande selon la revendication 1, une vanne de descente freinée (36) qui peut être déverrouillée par la pression régnant dans l'arrivée étant disposée dans l'écoulement.
  3. Dispositif de commande selon la revendication 1 ou 2, une buse fixe (22) et une buse réglable (28) étant disposées en série dans le canal de commande (24) et la pression de signalisation étant prélevée entre les buses (26, 28).
  4. Dispositif de commande selon la revendication 3, la buse réglable (28) pouvant être ajustée en fonction du réglage des diaphragmes de mesure (16, 18).
  5. Dispositif de commande selon la revendication 4, les diaphragmes de mesure (16, 18) étant formés par un élément de vitesse d'un distributeur LS à réglage proportionnel (6) et le canal de commande (24) avec les buses (26, 28) étant de préférence intégré dans un tiroir de distribution (38) du distributeur (6).
  6. Dispositif de commande selon la revendication 5, le tiroir de distribution (38) comprenant une rainure annulaire à peu près centrale (62), qui est disposée dans la zone d'un raccord de pression (P) du distributeur (6) et par le déplacement de laquelle il est possible de réaliser la commande d'ouverture d'une liaison vers une arrivée ou vers un retour du consommateur.
  7. Dispositif de commande selon la revendication 6, sachant que dans un collet de commande (66) qui est attribué au retour et qui vient à la suite de la rainure annulaire, est prévue une forure radiale de buse (94) dont la section d'écoulement de l'huile de commande peut être réduite lors de la commande de l'ouverture du diaphragme de mesure d'arrivée (16) et qui aboutit dans une forure axiale du tiroir de distribution (38), qui est reliée au moyen d'un orifice d'arrivée d'huile de commande (92) du tiroir de distribution (38) avec un compartiment sous pression (52) disposé en aval du diaphragme de mesure (16) et relié avec le raccord de pression (P) et qui conduit à un raccord LS pour le prélèvement de la pression de signalisation.
  8. Dispositif de commande selon la revendication 7, les orifices d'arrivée (92) étant configurés sur le collet de commande (66) entre les forures des buses (94) et la rainure annulaire (62).
  9. Dispositif de commande selon la revendication 7 ou 8, les forures de diffuseurs (94) comprenant respectivement une section radiale de forure, qui aboutit dans une section d'extrémité large d'une entaille (96) qui s'étend dans le sens axial et qui se rétrécit et s'aplatit en s'écartant de la rainure annulaire (62).
  10. Dispositif de commande selon l'une quelconque des revendications précédentes, caractérisé par une pompe à cylindrée variable (4) qui peut être activée au moyen de la pression de signalisation.
EP04004260A 2003-02-26 2004-02-25 Dispositif de contrôle hydraulique Expired - Lifetime EP1452744B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10308484 2003-02-26
DE10308484A DE10308484A1 (de) 2003-02-26 2003-02-26 Hydraulische Steueranordnung

Publications (2)

Publication Number Publication Date
EP1452744A1 EP1452744A1 (fr) 2004-09-01
EP1452744B1 true EP1452744B1 (fr) 2007-02-21

Family

ID=32748079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04004260A Expired - Lifetime EP1452744B1 (fr) 2003-02-26 2004-02-25 Dispositif de contrôle hydraulique

Country Status (3)

Country Link
EP (1) EP1452744B1 (fr)
AT (1) ATE354734T1 (fr)
DE (2) DE10308484A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014208825A1 (de) * 2014-05-12 2015-11-12 Robert Bosch Gmbh Steueranordnung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005011395A1 (de) 2005-03-11 2006-09-14 Bosch Rexroth Ag Hydraulische Steueranordnung
DE102006040234A1 (de) * 2006-08-28 2008-03-06 Robert Bosch Gmbh LS-Steueranordnung
DE102007055377A1 (de) * 2007-11-19 2009-05-20 Robert Bosch Gmbh Hydraulische Steueranordnung und Wegeventilsektion

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3436246C2 (de) * 1984-10-03 1986-09-11 Danfoss A/S, Nordborg Steuereinrichtung für einen hydraulisch betriebenen Verbraucher
US5203678A (en) * 1990-01-11 1993-04-20 Hitachi Construction Machinery Co., Ltd. Valve apparatus and hydraulic drive system
DE4241846C2 (de) * 1992-12-11 1996-09-26 Danfoss As Hydraulisches System
DE19800721A1 (de) * 1998-01-12 1999-07-15 Danfoss As Steuervorrichtung für einen hydraulischen Motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014208825A1 (de) * 2014-05-12 2015-11-12 Robert Bosch Gmbh Steueranordnung

Also Published As

Publication number Publication date
DE502004002931D1 (de) 2007-04-05
EP1452744A1 (fr) 2004-09-01
DE10308484A1 (de) 2004-09-09
ATE354734T1 (de) 2007-03-15

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