JPH0245316Y2 - - Google Patents

Info

Publication number
JPH0245316Y2
JPH0245316Y2 JP1981101830U JP10183081U JPH0245316Y2 JP H0245316 Y2 JPH0245316 Y2 JP H0245316Y2 JP 1981101830 U JP1981101830 U JP 1981101830U JP 10183081 U JP10183081 U JP 10183081U JP H0245316 Y2 JPH0245316 Y2 JP H0245316Y2
Authority
JP
Japan
Prior art keywords
hydraulic
cylinder
switching valve
pilot
directional
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
Application number
JP1981101830U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5810960U (ja
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 filed Critical
Priority to JP1981101830U priority Critical patent/JPS5810960U/ja
Priority to DE8282106156T priority patent/DE3269163D1/de
Priority to US06/396,878 priority patent/US4534268A/en
Priority to KR2019820005421U priority patent/KR870000935Y1/ko
Priority to EP82106156A priority patent/EP0070005B1/en
Publication of JPS5810960U publication Critical patent/JPS5810960U/ja
Application granted granted Critical
Publication of JPH0245316Y2 publication Critical patent/JPH0245316Y2/ja
Granted 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
    • E02F9/2221—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
    • 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
    • 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
    • F15B2211/3059—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
    • F15B2211/70—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

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)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
JP1981101830U 1981-07-10 1981-07-10 油圧ショベルの油圧回路 Granted JPS5810960U (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1981101830U JPS5810960U (ja) 1981-07-10 1981-07-10 油圧ショベルの油圧回路
DE8282106156T DE3269163D1 (en) 1981-07-10 1982-07-09 Hydraulic fluid circuit of hydraulic shovel
US06/396,878 US4534268A (en) 1981-07-10 1982-07-09 Hydraulic fluid circuit of hydraulic shovel
KR2019820005421U KR870000935Y1 (ko) 1981-07-10 1982-07-09 유압셔블의 유압회로
EP82106156A EP0070005B1 (en) 1981-07-10 1982-07-09 Hydraulic fluid circuit of hydraulic shovel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981101830U JPS5810960U (ja) 1981-07-10 1981-07-10 油圧ショベルの油圧回路

Publications (2)

Publication Number Publication Date
JPS5810960U JPS5810960U (ja) 1983-01-24
JPH0245316Y2 true JPH0245316Y2 (en]) 1990-11-30

Family

ID=14311009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981101830U Granted JPS5810960U (ja) 1981-07-10 1981-07-10 油圧ショベルの油圧回路

Country Status (5)

Country Link
US (1) US4534268A (en])
EP (1) EP0070005B1 (en])
JP (1) JPS5810960U (en])
KR (1) KR870000935Y1 (en])
DE (1) DE3269163D1 (en])

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59186502U (ja) * 1983-05-31 1984-12-11 株式会社小松製作所 方向切換弁
JPS6233950A (ja) * 1985-08-06 1987-02-13 Hitachi Constr Mach Co Ltd 油圧機械の油圧回路
US4838756A (en) * 1987-02-19 1989-06-13 Deere & Company Hydraulic system for an industrial machine
US4984427A (en) * 1989-09-01 1991-01-15 Kabushiki Kaisha Kobe Seiko Sho Control circuit for hydraulic actuator
JP3019671B2 (ja) * 1993-05-27 2000-03-13 ダイキン工業株式会社 超高圧制御装置
JPH07238575A (ja) * 1994-02-28 1995-09-12 Komatsu Ltd 走行用油圧装置
JPH1113091A (ja) * 1997-06-23 1999-01-19 Hitachi Constr Mach Co Ltd 建設機械の油圧駆動装置
JP4721353B2 (ja) * 2006-06-29 2011-07-13 キャタピラー エス エー アール エル 弁制御装置
EP3660228B1 (en) * 2017-07-27 2022-04-20 Sumitomo (S.H.I.) Construction Machinery Co., Ltd. Shovel

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1431905A (fr) * 1965-02-05 1966-03-18 Auxitra Soc Perfectionnements à la commande d'engins de travaux publics à plusieurs moteurs ouvérins
DE2138986C3 (de) * 1971-08-04 1978-09-07 G.L. Rexroth Gmbh, 8770 Lohr Steuerventileinrichtung für mehrere hydraulische Antriebe
BE794481A (fr) * 1972-01-24 1973-05-16 Kubota Ltd Pelle mecanique pour travaux de terrassement
DE2203713A1 (de) * 1972-01-27 1973-08-09 Weyhausen Kg Maschf H Schaltung fuer hydrostatisch betriebene arbeitsvorrichtungen
US3760689A (en) * 1972-02-24 1973-09-25 Harnischfeger Corp Control system for automatically sequencing operation of a plurality of hydraulic pumps for supplying a plurality of hydraulic actuators
US4073141A (en) * 1977-03-17 1978-02-14 Caterpillar Tractor Co. Fluid control system with priority flow
US4142445A (en) * 1977-03-17 1979-03-06 Caterpillar Tractor Co. Crossover plural circuit fluid system
DE2856093A1 (de) * 1978-12-23 1980-06-26 Massey Ferguson Hanomag Inc & Hydraulikanlage zur betaetigung von auf fahrzeugen aufgebauten arbeitsgeraeten, wie z.b. hydraulikbaggern, ladevorrichtungen usw.
JPS55120802U (en]) * 1979-02-20 1980-08-27
US4207740A (en) * 1979-06-12 1980-06-17 Akermans Verkstad Ab Valve blocks, in particular for hydraulic excavators

Also Published As

Publication number Publication date
DE3269163D1 (en) 1986-03-27
EP0070005B1 (en) 1986-02-19
US4534268A (en) 1985-08-13
KR840000545U (ko) 1984-02-24
EP0070005A1 (en) 1983-01-19
KR870000935Y1 (ko) 1987-03-14
JPS5810960U (ja) 1983-01-24

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