JPS57140434A - Oil-pressure circuit for oil-pressure shovel - Google Patents

Oil-pressure circuit for oil-pressure shovel

Info

Publication number
JPS57140434A
JPS57140434A JP2478681A JP2478681A JPS57140434A JP S57140434 A JPS57140434 A JP S57140434A JP 2478681 A JP2478681 A JP 2478681A JP 2478681 A JP2478681 A JP 2478681A JP S57140434 A JPS57140434 A JP S57140434A
Authority
JP
Japan
Prior art keywords
oil
pressure
turning
control valve
shovel
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
JP2478681A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6330452B2 (enrdf_load_stackoverflow
Inventor
Hideaki Yoshimatsu
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 JP2478681A priority Critical patent/JPS57140434A/ja
Publication of JPS57140434A publication Critical patent/JPS57140434A/ja
Publication of JPS6330452B2 publication Critical patent/JPS6330452B2/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
    • E02F9/2278—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
    • E02F9/22—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)
JP2478681A 1981-02-20 1981-02-20 Oil-pressure circuit for oil-pressure shovel Granted JPS57140434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2478681A JPS57140434A (en) 1981-02-20 1981-02-20 Oil-pressure circuit for oil-pressure shovel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2478681A JPS57140434A (en) 1981-02-20 1981-02-20 Oil-pressure circuit for oil-pressure shovel

Publications (2)

Publication Number Publication Date
JPS57140434A true JPS57140434A (en) 1982-08-31
JPS6330452B2 JPS6330452B2 (enrdf_load_stackoverflow) 1988-06-17

Family

ID=12147862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2478681A Granted JPS57140434A (en) 1981-02-20 1981-02-20 Oil-pressure circuit for oil-pressure shovel

Country Status (1)

Country Link
JP (1) JPS57140434A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6334304A (ja) * 1986-07-29 1988-02-15 Toshiba Mach Co Ltd 油圧シヨベルの油圧回路
JP2007071237A (ja) * 2005-09-05 2007-03-22 Shibusho Kensetsu:Kk 油圧回路及び電気制御回路並びに油圧モータ切断装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3681833B2 (ja) * 1996-09-19 2005-08-10 ヤンマー株式会社 掘削旋回作業機の油圧回路

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5774441A (en) * 1980-10-27 1982-05-10 Daikin Ind Ltd Construction machinery such as power shovel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5774441A (en) * 1980-10-27 1982-05-10 Daikin Ind Ltd Construction machinery such as power shovel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6334304A (ja) * 1986-07-29 1988-02-15 Toshiba Mach Co Ltd 油圧シヨベルの油圧回路
JP2007071237A (ja) * 2005-09-05 2007-03-22 Shibusho Kensetsu:Kk 油圧回路及び電気制御回路並びに油圧モータ切断装置

Also Published As

Publication number Publication date
JPS6330452B2 (enrdf_load_stackoverflow) 1988-06-17

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