JPH0251011B2 - - Google Patents

Info

Publication number
JPH0251011B2
JPH0251011B2 JP12824481A JP12824481A JPH0251011B2 JP H0251011 B2 JPH0251011 B2 JP H0251011B2 JP 12824481 A JP12824481 A JP 12824481A JP 12824481 A JP12824481 A JP 12824481A JP H0251011 B2 JPH0251011 B2 JP H0251011B2
Authority
JP
Japan
Prior art keywords
cylinder
arm
rod
side oil
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
Application number
JP12824481A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5833649A (ja
Inventor
Takashi Yagyu
Takeshi Yamaguchi
Sotaro Tanaka
Yasuo Sakaki
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP12824481A priority Critical patent/JPS5833649A/ja
Priority to DE8282107325T priority patent/DE3276124D1/de
Priority to US06/407,630 priority patent/US4504185A/en
Priority to EP82107325A priority patent/EP0072539B1/fr
Priority to KR8203694A priority patent/KR870000507B1/ko
Publication of JPS5833649A publication Critical patent/JPS5833649A/ja
Publication of JPH0251011B2 publication Critical patent/JPH0251011B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • E02F3/437—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
JP12824481A 1981-08-18 1981-08-18 ロ−デイングシヨベルの油圧回路 Granted JPS5833649A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP12824481A JPS5833649A (ja) 1981-08-18 1981-08-18 ロ−デイングシヨベルの油圧回路
DE8282107325T DE3276124D1 (en) 1981-08-18 1982-08-12 Hydraulic circuit of hydraulic power shovel
US06/407,630 US4504185A (en) 1981-08-18 1982-08-12 Hydraulic circuit of hydraulic power shovel
EP82107325A EP0072539B1 (fr) 1981-08-18 1982-08-12 Circuit hydraulique pour pelle hydraulique
KR8203694A KR870000507B1 (ko) 1981-08-18 1982-08-17 유압 셔블의 유압회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12824481A JPS5833649A (ja) 1981-08-18 1981-08-18 ロ−デイングシヨベルの油圧回路

Publications (2)

Publication Number Publication Date
JPS5833649A JPS5833649A (ja) 1983-02-26
JPH0251011B2 true JPH0251011B2 (fr) 1990-11-06

Family

ID=14980055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12824481A Granted JPS5833649A (ja) 1981-08-18 1981-08-18 ロ−デイングシヨベルの油圧回路

Country Status (1)

Country Link
JP (1) JPS5833649A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175133A (ja) * 1984-09-20 1986-04-17 Sekitan Rotenbori Kikai Gijutsu Kenkyu Kumiai ロ−デイングシヨベルの油圧回路
JPS6175129A (ja) * 1984-09-20 1986-04-17 Sekitan Rotenbori Kikai Gijutsu Kenkyu Kumiai ロ−デイングシヨベルの油圧回路
JPS6175131A (ja) * 1984-09-20 1986-04-17 Sekitan Rotenbori Kikai Gijutsu Kenkyu Kumiai ロ−デイングシヨベルの油圧回路
US5106233A (en) * 1989-08-25 1992-04-21 Breaux Louis B Hazardous waste containment system

Also Published As

Publication number Publication date
JPS5833649A (ja) 1983-02-26

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