FR2486121A1 - Circuit hydraulique pour pelle retrocaveuse - Google Patents

Circuit hydraulique pour pelle retrocaveuse Download PDF

Info

Publication number
FR2486121A1
FR2486121A1 FR8021019A FR8021019A FR2486121A1 FR 2486121 A1 FR2486121 A1 FR 2486121A1 FR 8021019 A FR8021019 A FR 8021019A FR 8021019 A FR8021019 A FR 8021019A FR 2486121 A1 FR2486121 A1 FR 2486121A1
Authority
FR
France
Prior art keywords
cylinder
valve
hydraulic
control valve
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
FR8021019A
Other languages
English (en)
French (fr)
Other versions
FR2486121B1 (US07655688-20100202-C00086.png
Inventor
Norihiro Aikawa
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Publication of FR2486121A1 publication Critical patent/FR2486121A1/fr
Application granted granted Critical
Publication of FR2486121B1 publication Critical patent/FR2486121B1/fr
Granted legal-status Critical Current

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
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using 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
    • E02F9/22—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
    • 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
    • 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
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-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
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30585—Assemblies of multiple valves having a single valve 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
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
    • 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)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
FR8021019A 1980-07-07 1980-10-01 Circuit hydraulique pour pelle retrocaveuse Granted FR2486121A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980095532U JPS6129813Y2 (US07655688-20100202-C00086.png) 1980-07-07 1980-07-07

Publications (2)

Publication Number Publication Date
FR2486121A1 true FR2486121A1 (fr) 1982-01-08
FR2486121B1 FR2486121B1 (US07655688-20100202-C00086.png) 1984-01-13

Family

ID=14140160

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8021019A Granted FR2486121A1 (fr) 1980-07-07 1980-10-01 Circuit hydraulique pour pelle retrocaveuse

Country Status (7)

Country Link
US (1) US4561341A (US07655688-20100202-C00086.png)
JP (1) JPS6129813Y2 (US07655688-20100202-C00086.png)
CA (1) CA1143252A (US07655688-20100202-C00086.png)
DE (1) DE3037281C2 (US07655688-20100202-C00086.png)
FR (1) FR2486121A1 (US07655688-20100202-C00086.png)
GB (1) GB2079377B (US07655688-20100202-C00086.png)
NL (1) NL180535C (US07655688-20100202-C00086.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694604A1 (fr) * 1992-08-07 1994-02-11 Kubota Kk Structure de circuit hydraulique pour une rétropelle.
EP0798422A3 (en) * 1996-03-28 1998-02-04 Clark Equipment Company Multifunction valve stack
CN103842663A (zh) * 2011-10-07 2014-06-04 沃尔沃建造设备有限公司 用于施工机械的操作工作装置的控制系统

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216249C2 (de) * 1981-05-02 1986-08-21 Hitachi Construction Machinery Co. Ltd., Tokio/Tokyo Hydrauliksystem für Hoch- und Tiefbaumaschinen
JPS58146630A (ja) * 1982-02-25 1983-09-01 Hitachi Constr Mach Co Ltd 油圧作業機械の油圧回路
DE3516429A1 (de) * 1985-05-08 1986-11-13 Rudolf Hausherr & Söhne GmbH & Co KG, 4322 Sprockhövel Schaltungsanordnung fuer die hydraulische beaufschlagung der aggregate eines laders
DE3605140A1 (de) * 1986-02-18 1987-08-20 Rexroth Mannesmann Gmbh Aus mehreren ventileinheiten bestehender steuerblock fuer mehrere hydraulische antriebe, insbesondere gabelstapler
JPH076530B2 (ja) * 1986-09-27 1995-01-30 日立建機株式会社 油圧ショベルの油圧回路
US4838756A (en) * 1987-02-19 1989-06-13 Deere & Company Hydraulic system for an industrial machine
JPH078601Y2 (ja) * 1987-11-10 1995-03-01 株式会社クボタ バックホウの油圧回路
US5046311A (en) * 1989-12-14 1991-09-10 Cartner Jack O Hydraulic control system
GB2251232B (en) * 1990-09-29 1995-01-04 Samsung Heavy Ind Automatic actuating system for actuators of excavator
US5251442A (en) * 1991-10-24 1993-10-12 Roche Engineering Corporation Fluid power regenerator
US5319932A (en) * 1993-04-28 1994-06-14 Roche Engineering Corporation Power sensing regenerator
JPH0754803A (ja) * 1993-08-12 1995-02-28 Komatsu Ltd 可変容量型油圧ポンプの容量制御装置
US5471837A (en) * 1993-09-03 1995-12-05 Caterpillar Inc. Hydraulic system using multiple substantially identical valve assemblies
JP3511425B2 (ja) * 1995-09-18 2004-03-29 日立建機株式会社 油圧システム
US6018895A (en) * 1996-03-28 2000-02-01 Clark Equipment Company Valve stack in a mini-excavator directing fluid under pressure from multiple pumps to actuable elements
FI101365B (fi) * 1996-09-25 1998-06-15 Plustech Oy Liikkuvan koneen paineväliaineen syöttöpiiri
US6430850B1 (en) * 2000-07-25 2002-08-13 Deere & Company Seat switch activated pump
JP4151597B2 (ja) * 2004-03-31 2008-09-17 コベルコ建機株式会社 油圧制御回路および建設機械
US9074352B2 (en) * 2006-03-27 2015-07-07 John R. Ramun Universal control scheme for mobile hydraulic equipment and method for achieving the same
US8806862B2 (en) * 2007-12-20 2014-08-19 Parker-Hannifin Corporation Smart flow sharing system
US20120117959A1 (en) * 2010-11-17 2012-05-17 Illinois Tool Works Inc. Remote Control Circuit for a Hydraulically Operated Device
US9394924B2 (en) * 2011-02-07 2016-07-19 Caterpillar Inc. Hydrostatic system configured to be integrated in an excavator
US8966890B2 (en) 2011-07-29 2015-03-03 Caterpillar Inc. Method and arrangement for active make-up in an overrunning actuator
US8984873B2 (en) * 2011-10-21 2015-03-24 Caterpillar Inc. Meterless hydraulic system having flow sharing and combining functionality
WO2016056675A1 (ja) * 2015-10-28 2016-04-14 株式会社小松製作所 建設機械の駆動装置
US10677269B2 (en) * 2018-08-30 2020-06-09 Jack K. Lippett Hydraulic system combining two or more hydraulic functions
DE102020110821A1 (de) 2020-04-21 2021-10-21 Liebherr-Werk Telfs Gmbh Planierraupe
US20230175234A1 (en) * 2020-05-01 2023-06-08 Cummins Inc. Distributed pump architecture for multifunctional machines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2142926A1 (US07655688-20100202-C00086.png) * 1971-06-25 1973-02-02 Mitsubishi Heavy Ind Ltd
FR2163588A1 (US07655688-20100202-C00086.png) * 1971-12-13 1973-07-27 Caterpillar Tractor Co
FR2169397A1 (US07655688-20100202-C00086.png) * 1972-01-27 1973-09-07 Weyhausen Kg Maschf
FR2376258A1 (fr) * 1976-12-28 1978-07-28 Kubota Ltd Engin a commande hydraulique, notamment engin de construction
FR2407300A1 (fr) * 1977-10-31 1979-05-25 Kubota Ltd Montage de circuit pour engin pouvant fonctionner comme chargeuse-pelleteuse ainsi que comme bouteur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1952034A1 (de) * 1969-10-15 1971-04-22 Linde Ag Steuereinrichtung fuer eine hydraulische Anlage und Ventil hierzu
US3922855A (en) * 1971-12-13 1975-12-02 Caterpillar Tractor Co Hydraulic circuitry for an excavator
US4179981A (en) * 1975-10-30 1979-12-25 Poclain Device for sequentially supplying several hydraulic motors
US4210061A (en) * 1976-12-02 1980-07-01 Caterpillar Tractor Co. Three-circuit fluid system having controlled fluid combining
US4112821A (en) * 1976-12-03 1978-09-12 Caterpillar Tractor Co. Fluid control system for multiple circuited work elements

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2142926A1 (US07655688-20100202-C00086.png) * 1971-06-25 1973-02-02 Mitsubishi Heavy Ind Ltd
FR2163588A1 (US07655688-20100202-C00086.png) * 1971-12-13 1973-07-27 Caterpillar Tractor Co
FR2169397A1 (US07655688-20100202-C00086.png) * 1972-01-27 1973-09-07 Weyhausen Kg Maschf
FR2376258A1 (fr) * 1976-12-28 1978-07-28 Kubota Ltd Engin a commande hydraulique, notamment engin de construction
FR2407300A1 (fr) * 1977-10-31 1979-05-25 Kubota Ltd Montage de circuit pour engin pouvant fonctionner comme chargeuse-pelleteuse ainsi que comme bouteur

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694604A1 (fr) * 1992-08-07 1994-02-11 Kubota Kk Structure de circuit hydraulique pour une rétropelle.
EP0798422A3 (en) * 1996-03-28 1998-02-04 Clark Equipment Company Multifunction valve stack
US6029446A (en) * 1996-03-28 2000-02-29 Melroe Company Multifunction valve stack
CN103842663A (zh) * 2011-10-07 2014-06-04 沃尔沃建造设备有限公司 用于施工机械的操作工作装置的控制系统

Also Published As

Publication number Publication date
GB2079377B (en) 1984-03-07
NL180535B (nl) 1986-10-01
JPS5722551U (US07655688-20100202-C00086.png) 1982-02-05
FR2486121B1 (US07655688-20100202-C00086.png) 1984-01-13
GB2079377A (en) 1982-01-20
DE3037281A1 (de) 1982-01-28
NL8005444A (nl) 1982-02-01
DE3037281C2 (de) 1983-09-15
US4561341A (en) 1985-12-31
JPS6129813Y2 (US07655688-20100202-C00086.png) 1986-09-02
CA1143252A (en) 1983-03-22
NL180535C (nl) 1987-03-02

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