EP0277602A3 - Hydraulikanlage zur Betätigung von Arbeitsgeräten an Fahrzeugen - Google Patents

Hydraulikanlage zur Betätigung von Arbeitsgeräten an Fahrzeugen Download PDF

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Publication number
EP0277602A3
EP0277602A3 EP88101298A EP88101298A EP0277602A3 EP 0277602 A3 EP0277602 A3 EP 0277602A3 EP 88101298 A EP88101298 A EP 88101298A EP 88101298 A EP88101298 A EP 88101298A EP 0277602 A3 EP0277602 A3 EP 0277602A3
Authority
EP
European Patent Office
Prior art keywords
circuit
hydraulic
beiden
pumps
check valve
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.)
Withdrawn
Application number
EP88101298A
Other languages
English (en)
French (fr)
Other versions
EP0277602A2 (de
Inventor
Christian Anderson
Rolf Teibtner
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.)
Xaver Fendt and Co
Original Assignee
Xaver Fendt and Co
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 Xaver Fendt and Co filed Critical Xaver Fendt and Co
Publication of EP0277602A2 publication Critical patent/EP0277602A2/de
Publication of EP0277602A3 publication Critical patent/EP0277602A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2004—Control mechanisms, e.g. control levers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • 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
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
    • F15B2211/30595—Assemblies of multiple valves having multiple valves for multiple output members with additional valves between the groups of valves for multiple 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
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41563—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a return line
    • 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
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
    • 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
    • F15B2211/78—Control of multiple output members

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Hydraulikanlagen zur Betätigung von Arbeitsgeräten, die von einem Fahrzeug mitgeführt sind und zwei je von einer Pumpe gespeiste Hydraulikstromkreise aufweisen, sind bis­ her in energetisch günstiger Weise nicht derart miteinander verknüpfbar, daß zusätzlich jeder Hydraulikstromkreis ent­ weder nur von der Pumpe des anderen Hydraulikstromkreises oder von beiden Pumpen beliefert werden kann.
Um dieses zu ermöglichen, ist
  • a) beiden Pumpen 2, 11 eine Bypassleitung 8 mit einem elek­ trisch ansteuerbaren Kurzschlußventil 9 zugeordnet,
  • b) erfolgt die Verknüpfung der beiden Hydraulikstromkreise über ein aktives, elektrisch ansteuerbares, im nicht an­ gesteuerten Zustand geschlossenes Verknüpfungselement (Sperrventil 19) das einen Druckmitteldurchfluß in beiden Richtungen erlaubt und
  • c) erfolgt die Ansteuerung der Kurzschlußventile 9, 16 sowie des Sperrventils 19 über eine logische Schaltung 22 in Abhängigkeit von Schaltstellung eines Betätigungselementes mit mehreren Schaltstellungen.
    • EP88101298A 1987-02-04 1988-01-29 Hydraulikanlage zur Betätigung von Arbeitsgeräten an Fahrzeugen Withdrawn EP0277602A3 (de)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE3703297 1987-02-04
    DE19873703297 DE3703297A1 (de) 1987-02-04 1987-02-04 Hydraulikanlage zur betaetigung von arbeitsgeraeten an fahrzeugen

    Publications (2)

    Publication Number Publication Date
    EP0277602A2 EP0277602A2 (de) 1988-08-10
    EP0277602A3 true EP0277602A3 (de) 1989-03-22

    Family

    ID=6320180

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP88101298A Withdrawn EP0277602A3 (de) 1987-02-04 1988-01-29 Hydraulikanlage zur Betätigung von Arbeitsgeräten an Fahrzeugen

    Country Status (2)

    Country Link
    EP (1) EP0277602A3 (de)
    DE (1) DE3703297A1 (de)

    Families Citing this family (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2639384B1 (fr) * 1988-11-21 1991-02-22 Case Poclain Dispositif de commande d'un engin de travaux publics
    JPH07116721B2 (ja) * 1989-01-31 1995-12-13 油谷重工株式会社 油圧ショベルの油圧回路
    DE4100988C2 (de) * 1991-01-15 2001-05-10 Linde Ag Hydraulisches Antriebssystem
    US5063739A (en) * 1991-02-19 1991-11-12 Caterpillar Inc. Load sensing hydraulic control system
    KR0185493B1 (ko) * 1996-03-30 1999-04-01 토니헬샴 중장비용 유량 합류장치
    DE19622095A1 (de) * 1996-06-01 1997-12-04 Wabco Gmbh Druckmittelanlage
    WO2001073300A2 (en) * 2000-03-28 2001-10-04 Hydraulic Controls, Inc. Speed regulated oil delivery system
    DE102005031971A1 (de) * 2005-07-08 2007-01-11 Wilhelm Karmann Gmbh Hydraulische Betätigungsanordnung
    JP5066987B2 (ja) * 2007-04-10 2012-11-07 コベルコ建機株式会社 油圧ショベルの油圧制御装置
    DE102012209142A1 (de) 2012-05-31 2013-12-05 Putzmeister Engineering Gmbh Hydrauliksystem
    DE102014226666B3 (de) * 2014-12-19 2015-12-24 Voith Patent Gmbh Stellantrieb für ein Regelventil, insbesondere Dampfturbinenregelventil und Verfahren zum Betreiben desselben
    DE102016102387A1 (de) * 2015-07-31 2017-02-02 Voith Patent Gmbh Hydraulischer Antrieb zum Ausführen einer linearen Bewegung

    Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPS57177407A (en) * 1981-04-21 1982-11-01 Toshiba Mach Co Ltd Flow regulation valve and hydraulic control valve for injection molding machine employing said valve
    EP0104613A2 (de) * 1982-09-23 1984-04-04 Vickers Incorporated Kraftübertragung
    US4449365A (en) * 1979-11-19 1984-05-22 Allis-Chalmers Corporation Lift, tilt and steering control for a lift truck
    EP0235545A2 (de) * 1986-01-25 1987-09-09 Hitachi Construction Machinery Co., Ltd. Hydraulisches Antriebssystem

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4449365A (en) * 1979-11-19 1984-05-22 Allis-Chalmers Corporation Lift, tilt and steering control for a lift truck
    JPS57177407A (en) * 1981-04-21 1982-11-01 Toshiba Mach Co Ltd Flow regulation valve and hydraulic control valve for injection molding machine employing said valve
    EP0104613A2 (de) * 1982-09-23 1984-04-04 Vickers Incorporated Kraftübertragung
    EP0235545A2 (de) * 1986-01-25 1987-09-09 Hitachi Construction Machinery Co., Ltd. Hydraulisches Antriebssystem

    Non-Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Title
    PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 24 (M-189)[1169], 29. Januar 1983; & JP-A-57 177 407 (TOSHIBA KIKAI K.K.) 01-11-1982 *

    Also Published As

    Publication number Publication date
    EP0277602A2 (de) 1988-08-10
    DE3703297A1 (de) 1988-08-18

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