JPS57201434A - Oil-pressure circuit for hydraulic shovel - Google Patents

Oil-pressure circuit for hydraulic shovel

Info

Publication number
JPS57201434A
JPS57201434A JP8510681A JP8510681A JPS57201434A JP S57201434 A JPS57201434 A JP S57201434A JP 8510681 A JP8510681 A JP 8510681A JP 8510681 A JP8510681 A JP 8510681A JP S57201434 A JPS57201434 A JP S57201434A
Authority
JP
Japan
Prior art keywords
oil
control valve
turning
pressure
pressure 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
JP8510681A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6238497B2 (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 JP8510681A priority Critical patent/JPS57201434A/ja
Publication of JPS57201434A publication Critical patent/JPS57201434A/ja
Publication of JPS6238497B2 publication Critical patent/JPS6238497B2/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

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)
JP8510681A 1981-06-02 1981-06-02 Oil-pressure circuit for hydraulic shovel Granted JPS57201434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8510681A JPS57201434A (en) 1981-06-02 1981-06-02 Oil-pressure circuit for hydraulic shovel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8510681A JPS57201434A (en) 1981-06-02 1981-06-02 Oil-pressure circuit for hydraulic shovel

Publications (2)

Publication Number Publication Date
JPS57201434A true JPS57201434A (en) 1982-12-09
JPS6238497B2 JPS6238497B2 (enrdf_load_stackoverflow) 1987-08-18

Family

ID=13849356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8510681A Granted JPS57201434A (en) 1981-06-02 1981-06-02 Oil-pressure circuit for hydraulic shovel

Country Status (1)

Country Link
JP (1) JPS57201434A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188008A (ja) * 1984-10-08 1986-05-06 Kayaba Ind Co Ltd 油圧制御装置
JPS62165003A (ja) * 1986-01-10 1987-07-21 Tech Res Assoc Openair Coal Min Mach 油圧シヨベル等の油圧回路における作動油配分装置
JPS62225633A (ja) * 1986-03-26 1987-10-03 Tech Res Assoc Openair Coal Min Mach 油圧シヨベル等の油圧回路における作動油配分装置
US5067321A (en) * 1989-02-23 1991-11-26 Kabushiki Kaisha Kobe Seiko Sho Hydraulic hoisting circuit with electrical control for relief valve adjustment pilot and pilot disable valve
JP2009156323A (ja) * 2007-12-26 2009-07-16 Kubota Corp 制御弁装置
JP2015206420A (ja) * 2014-04-21 2015-11-19 日立建機株式会社 建設機械の油圧駆動装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188008A (ja) * 1984-10-08 1986-05-06 Kayaba Ind Co Ltd 油圧制御装置
JPS62165003A (ja) * 1986-01-10 1987-07-21 Tech Res Assoc Openair Coal Min Mach 油圧シヨベル等の油圧回路における作動油配分装置
JPS62225633A (ja) * 1986-03-26 1987-10-03 Tech Res Assoc Openair Coal Min Mach 油圧シヨベル等の油圧回路における作動油配分装置
US5067321A (en) * 1989-02-23 1991-11-26 Kabushiki Kaisha Kobe Seiko Sho Hydraulic hoisting circuit with electrical control for relief valve adjustment pilot and pilot disable valve
JP2009156323A (ja) * 2007-12-26 2009-07-16 Kubota Corp 制御弁装置
JP2015206420A (ja) * 2014-04-21 2015-11-19 日立建機株式会社 建設機械の油圧駆動装置

Also Published As

Publication number Publication date
JPS6238497B2 (enrdf_load_stackoverflow) 1987-08-18

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