EP2287472A3 - Hydraulische Anordnung - Google Patents

Hydraulische Anordnung Download PDF

Info

Publication number
EP2287472A3
EP2287472A3 EP10172292.4A EP10172292A EP2287472A3 EP 2287472 A3 EP2287472 A3 EP 2287472A3 EP 10172292 A EP10172292 A EP 10172292A EP 2287472 A3 EP2287472 A3 EP 2287472A3
Authority
EP
European Patent Office
Prior art keywords
supply
consumer
priority
level
hydraulic pump
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
EP10172292.4A
Other languages
English (en)
French (fr)
Other versions
EP2287472A2 (de
EP2287472B1 (de
Inventor
Josef Peters
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.)
Deere and Co
Original Assignee
Deere 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 Deere and Co filed Critical Deere and Co
Publication of EP2287472A2 publication Critical patent/EP2287472A2/de
Publication of EP2287472A3 publication Critical patent/EP2287472A3/de
Application granted granted Critical
Publication of EP2287472B1 publication Critical patent/EP2287472B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/162—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for giving priority to particular servomotors or users
    • 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
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
    • 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
    • F15B11/055—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 by adjusting the pump output or bypass
    • 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
    • F15B2211/20546—Type of pump variable 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
    • F15B2211/25—Pressure control functions
    • F15B2211/253—Pressure margin control, e.g. pump pressure in relation to load 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
    • F15B2211/40—Flow control
    • F15B2211/41—Flow control characterised by the positions of the valve element
    • F15B2211/413—Flow control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a 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
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members
    • F15B2211/781—Control of multiple output members one or more output members having priority

Landscapes

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

Abstract

Eine hydraulische Anordnung (12) umfasst eine Hydraulikpumpe (21) und wenigstens einen ersten, zweiten und dritten von der Hydraulikpumpe (21) über jeweilige Lastdruckleitungen (43, 46, 48, 52, 54) bedarfsgesteuert versorgten Verbraucher (30, 32, 34), wobei jeder Verbraucher (30, 32, 34) durch wenigstens ein Steuerventil (36, 38, 40) über eine eigene Versorgungsleitung (24, 26, 28) hydraulisch parallel mit der Hydraulikpumpe (21) verbunden ist und dem ersten Verbraucher (30) eine Versorgungspriorität erster Stufe, dem zweiten Verbraucher (32) eine der ersten Stufe untergeordnete Versorgungspriorität zweiter Stufe und dem dritten Verbraucher (34) eine der zweiten Stufe untergeordnete Versorgungspriorität dritter Stufe zugeordnet ist. Um eine kostengünstige Prioritätssicherung für die hydraulischen Verbraucher (30, 32, 34) zu schaffen wird vorgeschlagen, dass zur Steuerung der Versorgungsprioritätsstufen die Versorgungsleitungen (26, 28) des zweiten und dritten Verbrauchers (32, 34) über eine Verbindungsleitung (60) verbunden sind und zwischen der Hydraulikpumpe (21) und der Verbindungsleitung (60) in der Versorgungsleitung (28) zum dritten Verbraucher (34) ein lastdruckgesteuertes Prioritätsventil (66) und in der Versorgungsleitung (26) zum zweiten Verbraucher (32) Volumenstrom reduzierende Mittel (58) angeordnet sind, wobei ferner die Verbindungsleitung (60) Mittel (62) aufweist, die einen Volumenstrom von der zweiten Versorgungsleitung (26) in Richtung der dritten Versorgungsleitung (28) sperren.
EP10172292.4A 2009-08-21 2010-08-09 Hydraulische Anordnung Active EP2287472B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009028816A DE102009028816A1 (de) 2009-08-21 2009-08-21 Hydraulische Anordnung

Publications (3)

Publication Number Publication Date
EP2287472A2 EP2287472A2 (de) 2011-02-23
EP2287472A3 true EP2287472A3 (de) 2014-09-03
EP2287472B1 EP2287472B1 (de) 2016-02-17

Family

ID=43033415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10172292.4A Active EP2287472B1 (de) 2009-08-21 2010-08-09 Hydraulische Anordnung

Country Status (6)

Country Link
US (1) US20110146258A1 (de)
EP (1) EP2287472B1 (de)
CN (1) CN101994725A (de)
BR (1) BRPI1002967A2 (de)
DE (1) DE102009028816A1 (de)
ES (1) ES2566638T3 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011089017B4 (de) 2011-12-19 2022-11-17 Zf Friedrichshafen Ag Hydrauliksystem eines landwirtschaftlichen oder kommunalen Nutzfahrzeugs, sowie Verfahren zum Betreiben eines Hydrauliksystems
JP5901378B2 (ja) * 2012-03-23 2016-04-06 Ｋｙｂ株式会社 走行制御バルブ
CN102720710B (zh) * 2012-06-26 2015-09-16 中联重科股份有限公司 液压系统、液压系统的控制方法和工程机械
CN104214150B (zh) * 2014-06-04 2016-03-23 上海中联重科桩工机械有限公司 双卷扬液压控制系统及具有其的工程机械
US10001147B2 (en) * 2015-05-15 2018-06-19 Caterpillar Inc. Independent metering valve priority in open center hydraulic system
CN106050768A (zh) * 2016-06-30 2016-10-26 江苏大学 一种拖拉机电液悬挂系统
CN110217737B (zh) * 2019-06-20 2020-09-04 江苏建筑职业技术学院 高空作业平台控制阀分工况随动系统及控制方法
CN110285102B (zh) * 2019-07-01 2020-05-15 燕山大学 具有主动悬挂的多轴应急救援车辆液压转向控制系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821416A1 (de) * 1988-06-24 1989-12-28 Rexroth Mannesmann Gmbh Hydraulik-steuerschaltung fuer ein anhaenger-bremsventil
DE202004010530U1 (de) * 2004-07-06 2004-12-09 Deere & Company, Moline Hydraulischer Schaltkreis

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892311A (en) * 1958-01-08 1959-06-30 Deere & Co Hydraulic apparatus
US3520231A (en) * 1968-10-23 1970-07-14 Gen Signal Corp Hydraulic supply systems with flow rate-limiting control
BE755815A (fr) * 1969-09-08 1971-02-15 Clark Equipment Co Systeme hydraulique d'un chariot elevateur
US4023646A (en) * 1975-11-24 1977-05-17 Allis-Chalmers Corporation Load sensitive hydraulic system
US4070857A (en) * 1976-12-22 1978-01-31 Towmotor Corporation Hydraulic priority circuit
US4923362A (en) * 1988-06-06 1990-05-08 Deere & Company Bucket leveling system with dual fluid supply
DE59104897D1 (de) * 1990-12-15 1995-04-13 Barmag Barmer Maschf Hydrauliksystem.
DK167322B1 (da) * 1991-10-28 1993-10-11 Danfoss As Hydraulisk kredsloeb
US5950429A (en) * 1997-12-17 1999-09-14 Husco International, Inc. Hydraulic control valve system with load sensing priority
DE19904616A1 (de) * 1999-02-05 2000-08-10 Mannesmann Rexroth Ag Steueranordnung für wenigstens zwei hydraulische Verbraucher und Druckdifferenzventil dafür
DE10308289B4 (de) * 2003-02-26 2010-11-25 Bosch Rexroth Aktiengesellschaft LS-Wegeventilblock
DE102004005606B3 (de) * 2004-02-05 2005-10-06 Hydac Fluidtechnik Gmbh Schaltungsanordnung
SE527434C8 (sv) * 2004-07-28 2006-03-28 Volvo Constr Equip Holding Se Hydraulisksystem och arbetsmaskin innefattande ett sådant system
DE202004014030U1 (de) * 2004-09-08 2006-01-12 Hawe Hydraulik Gmbh & Co. Kg Elektrohydraulische Steuervorrichtung
DE102004048684A1 (de) * 2004-10-06 2006-04-13 Bosch Rexroth Ag Hydraulische Steueranordnung
JP5042471B2 (ja) * 2005-06-30 2012-10-03 コベルコ建機株式会社 建設機械の油圧制御装置
GB0603991D0 (en) * 2006-02-28 2006-04-05 Agco Gmbh Hydraulic systems for utility vehicles, in particular agricultural vehicles
GB2435501A (en) * 2006-02-28 2007-08-29 Agco Gmbh Hydraulic system with priority assigned to different consumers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821416A1 (de) * 1988-06-24 1989-12-28 Rexroth Mannesmann Gmbh Hydraulik-steuerschaltung fuer ein anhaenger-bremsventil
DE202004010530U1 (de) * 2004-07-06 2004-12-09 Deere & Company, Moline Hydraulischer Schaltkreis

Also Published As

Publication number Publication date
BRPI1002967A2 (pt) 2012-04-17
CN101994725A (zh) 2011-03-30
ES2566638T3 (es) 2016-04-14
EP2287472A2 (de) 2011-02-23
US20110146258A1 (en) 2011-06-23
EP2287472B1 (de) 2016-02-17
DE102009028816A1 (de) 2011-02-24

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