JPS57205638A - Oil-pressure circuit for oil-pressure shovel - Google Patents

Oil-pressure circuit for oil-pressure shovel

Info

Publication number
JPS57205638A
JPS57205638A JP56089245A JP8924581A JPS57205638A JP S57205638 A JPS57205638 A JP S57205638A JP 56089245 A JP56089245 A JP 56089245A JP 8924581 A JP8924581 A JP 8924581A JP S57205638 A JPS57205638 A JP S57205638A
Authority
JP
Japan
Prior art keywords
oil
pressure
control valve
boom
slewing
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
JP56089245A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6238498B2 (enrdf_load_stackoverflow
Inventor
Hideaki Yoshimatsu
Toshio Sora
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP56089245A priority Critical patent/JPS57205638A/ja
Publication of JPS57205638A publication Critical patent/JPS57205638A/ja
Publication of JPS6238498B2 publication Critical patent/JPS6238498B2/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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12—Slewing or traversing gears
    • E02F9/121—Turntables, i.e. structure rotatable about 360°
    • E02F9/123—Drives or control devices specially adapted therefor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
JP56089245A 1981-06-09 1981-06-09 Oil-pressure circuit for oil-pressure shovel Granted JPS57205638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56089245A JPS57205638A (en) 1981-06-09 1981-06-09 Oil-pressure circuit for oil-pressure shovel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56089245A JPS57205638A (en) 1981-06-09 1981-06-09 Oil-pressure circuit for oil-pressure shovel

Publications (2)

Publication Number Publication Date
JPS57205638A true JPS57205638A (en) 1982-12-16
JPS6238498B2 JPS6238498B2 (enrdf_load_stackoverflow) 1987-08-18

Family

ID=13965360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56089245A Granted JPS57205638A (en) 1981-06-09 1981-06-09 Oil-pressure circuit for oil-pressure shovel

Country Status (1)

Country Link
JP (1) JPS57205638A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056796A (ja) * 1983-09-09 1985-04-02 日立建機株式会社 クレ−ンにおける巻上合流油圧回路
JPS63147021A (ja) * 1986-12-10 1988-06-20 Kubota Ltd バツクホウの油圧回路
EP0816577A1 (en) * 1996-07-04 1998-01-07 FKI Fai Komatsu Industries S.p.A. Hydraulic control circuit for working components, in particular in earth-moving machines
EP0927794A4 (en) * 1996-09-19 2000-03-22 Yanmar Diesel Engine Co HYDRAULIC CIRCUIT FOR A ROTATING EXCAVATOR
EP2728204A4 (en) * 2011-07-01 2014-08-27 Kobelco Constr Mach Co Ltd CONSTRUCTION MACHINE
EP2980325A4 (en) * 2013-03-28 2016-06-08 Kobe Steel Ltd HYDRAULIC SCOOP

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056796A (ja) * 1983-09-09 1985-04-02 日立建機株式会社 クレ−ンにおける巻上合流油圧回路
JPS63147021A (ja) * 1986-12-10 1988-06-20 Kubota Ltd バツクホウの油圧回路
EP0816577A1 (en) * 1996-07-04 1998-01-07 FKI Fai Komatsu Industries S.p.A. Hydraulic control circuit for working components, in particular in earth-moving machines
EP0927794A4 (en) * 1996-09-19 2000-03-22 Yanmar Diesel Engine Co HYDRAULIC CIRCUIT FOR A ROTATING EXCAVATOR
EP2728204A4 (en) * 2011-07-01 2014-08-27 Kobelco Constr Mach Co Ltd CONSTRUCTION MACHINE
EP2980325A4 (en) * 2013-03-28 2016-06-08 Kobe Steel Ltd HYDRAULIC SCOOP
US9790659B2 (en) 2013-03-28 2017-10-17 Kobe Steel, Ltd. Hydraulic shovel

Also Published As

Publication number Publication date
JPS6238498B2 (enrdf_load_stackoverflow) 1987-08-18

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