JPH0374290B2 - - Google Patents

Info

Publication number
JPH0374290B2
JPH0374290B2 JP60132020A JP13202085A JPH0374290B2 JP H0374290 B2 JPH0374290 B2 JP H0374290B2 JP 60132020 A JP60132020 A JP 60132020A JP 13202085 A JP13202085 A JP 13202085A JP H0374290 B2 JPH0374290 B2 JP H0374290B2
Authority
JP
Japan
Prior art keywords
pressure
main
valve
switching valve
relief valve
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 - Lifetime
Application number
JP60132020A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61294031A (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 JP60132020A priority Critical patent/JPS61294031A/ja
Publication of JPS61294031A publication Critical patent/JPS61294031A/ja
Publication of JPH0374290B2 publication Critical patent/JPH0374290B2/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
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Control And Safety Of Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)
JP60132020A 1985-06-19 1985-06-19 掘削機の油圧回路 Granted JPS61294031A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60132020A JPS61294031A (ja) 1985-06-19 1985-06-19 掘削機の油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60132020A JPS61294031A (ja) 1985-06-19 1985-06-19 掘削機の油圧回路

Publications (2)

Publication Number Publication Date
JPS61294031A JPS61294031A (ja) 1986-12-24
JPH0374290B2 true JPH0374290B2 (ko) 1991-11-26

Family

ID=15071640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60132020A Granted JPS61294031A (ja) 1985-06-19 1985-06-19 掘削機の油圧回路

Country Status (1)

Country Link
JP (1) JPS61294031A (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01102131A (ja) * 1987-10-16 1989-04-19 Hitachi Constr Mach Co Ltd 油圧式掘削機の油圧回路
JPH0728211Y2 (ja) * 1988-08-02 1995-06-28 株式会社小松製作所 油圧作業機
WO1990001588A1 (en) * 1988-08-02 1990-02-22 Kabushiki Kaisha Komatsu Seisakusho Moving speed regulator for hydraulically driven working machines
JPH0226652U (ko) * 1988-08-09 1990-02-21
US6282890B1 (en) 2000-01-21 2001-09-04 Komatsu Ltd. Hydraulic circuit for construction machines
JP5608252B2 (ja) 2013-02-26 2014-10-15 カヤバ工業株式会社 アクチュエータ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5616736A (en) * 1979-07-19 1981-02-18 Kobe Steel Ltd Hydraulic circuit for hydraulic power shovel
JPS5943567B2 (ja) * 1977-10-31 1984-10-23 大阪機工株式会社 精紡機又は撚糸機の玉揚機における管糸抜取り装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6131083Y2 (ko) * 1981-05-27 1986-09-10
JPS5943567U (ja) * 1982-09-08 1984-03-22 株式会社小松製作所 建設機械の作業機油圧回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943567B2 (ja) * 1977-10-31 1984-10-23 大阪機工株式会社 精紡機又は撚糸機の玉揚機における管糸抜取り装置
JPS5616736A (en) * 1979-07-19 1981-02-18 Kobe Steel Ltd Hydraulic circuit for hydraulic power shovel

Also Published As

Publication number Publication date
JPS61294031A (ja) 1986-12-24

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