JPH0329930B2 - - Google Patents

Info

Publication number
JPH0329930B2
JPH0329930B2 JP8918483A JP8918483A JPH0329930B2 JP H0329930 B2 JPH0329930 B2 JP H0329930B2 JP 8918483 A JP8918483 A JP 8918483A JP 8918483 A JP8918483 A JP 8918483A JP H0329930 B2 JPH0329930 B2 JP H0329930B2
Authority
JP
Japan
Prior art keywords
valve
pressure
hydraulic
cylinder
boom
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
JP8918483A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59217839A (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 JP8918483A priority Critical patent/JPS59217839A/ja
Publication of JPS59217839A publication Critical patent/JPS59217839A/ja
Publication of JPH0329930B2 publication Critical patent/JPH0329930B2/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)
  • Fluid-Pressure Circuits (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
  • Jib Cranes (AREA)
  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)
JP8918483A 1983-05-23 1983-05-23 クレ−ン兼用の油圧シヨベルの油圧回路 Granted JPS59217839A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8918483A JPS59217839A (ja) 1983-05-23 1983-05-23 クレ−ン兼用の油圧シヨベルの油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8918483A JPS59217839A (ja) 1983-05-23 1983-05-23 クレ−ン兼用の油圧シヨベルの油圧回路

Publications (2)

Publication Number Publication Date
JPS59217839A JPS59217839A (ja) 1984-12-08
JPH0329930B2 true JPH0329930B2 (en, 2012) 1991-04-25

Family

ID=13963654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8918483A Granted JPS59217839A (ja) 1983-05-23 1983-05-23 クレ−ン兼用の油圧シヨベルの油圧回路

Country Status (1)

Country Link
JP (1) JPS59217839A (en, 2012)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4711793B2 (ja) * 2005-09-26 2011-06-29 株式会社加藤製作所 ブーム起伏用油圧回路
JP6982517B2 (ja) * 2018-02-27 2021-12-17 Ｋｙｂ−Ｙｓ株式会社 流体圧制御装置
CN108773784A (zh) * 2018-07-17 2018-11-09 北京市第三建筑工程有限公司 提升器

Also Published As

Publication number Publication date
JPS59217839A (ja) 1984-12-08

Similar Documents

Publication Publication Date Title
US4007845A (en) Swing mechanism
US5642616A (en) Fluid pressure control system for hydraulic excavators
KR20140034214A (ko) 작업 기계의 유압 구동 장치
US5063741A (en) Engine-speed responsive cavitation preventing system
JP4037308B2 (ja) カウンタバランス弁
JP2001082406A (ja) 作業機械と関連するアタッチメント又はツールの操作を制御する油圧システム
JPH0329930B2 (en, 2012)
JP7161465B2 (ja) 建設機械の油圧回路
JP2607258B2 (ja) 作業機の油圧制御回路
JP7498851B2 (ja) 作業機械
CN119234069A (zh) 用于工程机械的液压回路
JPS60215931A (ja) クレ−ン兼用の油圧シヨベルの油圧回路
JPH0329931B2 (en, 2012)
JP2002294759A (ja) 建設機械の作業アタッチメント制御装置
JP2686106B2 (ja) ショベルローダのブーム及びバケット制御装置
JP2576314Y2 (ja) 作業機のカウンタウェイト着脱用油圧回路
JPS6233947A (ja) 油圧駆動装置
JPH0932044A (ja) バックホウの油圧回路
JP3062171B1 (ja) 産業機械の油圧装置
KR970009532B1 (ko) 굴삭기의 붐 복합동작 제어용 유량토출 제어장치
JP4367728B2 (ja) 建設機械におけるブームシリンダ制御装置
JPH0765323B2 (ja) ショベルローダのブーム及びバケット制御装置
JPH0637091Y2 (ja) 土木・建設機械の油圧駆動装置
SU653356A1 (ru) Гидравлический привод механизма копани
KR20240049523A (ko) 작업기계