JPS60133128A - 油圧掘削機の油圧回路 - Google Patents

油圧掘削機の油圧回路

Info

Publication number
JPS60133128A
JPS60133128A JP58240868A JP24086883A JPS60133128A JP S60133128 A JPS60133128 A JP S60133128A JP 58240868 A JP58240868 A JP 58240868A JP 24086883 A JP24086883 A JP 24086883A JP S60133128 A JPS60133128 A JP S60133128A
Authority
JP
Japan
Prior art keywords
hydraulic pump
valve
control valve
directional
hydraulic
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
JP58240868A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0412335B2 (enrdf_load_stackoverflow
Inventor
Toichi Hirata
東一 平田
Seiji Tamura
誠二 田村
Yoshio Kunitoki
国時　芳夫
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 JP58240868A priority Critical patent/JPS60133128A/ja
Publication of JPS60133128A publication Critical patent/JPS60133128A/ja
Publication of JPH0412335B2 publication Critical patent/JPH0412335B2/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
    • 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
    • E02F9/2285—Pilot-operated systems

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)
JP58240868A 1983-12-22 1983-12-22 油圧掘削機の油圧回路 Granted JPS60133128A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58240868A JPS60133128A (ja) 1983-12-22 1983-12-22 油圧掘削機の油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58240868A JPS60133128A (ja) 1983-12-22 1983-12-22 油圧掘削機の油圧回路

Publications (2)

Publication Number Publication Date
JPS60133128A true JPS60133128A (ja) 1985-07-16
JPH0412335B2 JPH0412335B2 (enrdf_load_stackoverflow) 1992-03-04

Family

ID=17065889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58240868A Granted JPS60133128A (ja) 1983-12-22 1983-12-22 油圧掘削機の油圧回路

Country Status (1)

Country Link
JP (1) JPS60133128A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1384827A4 (en) * 2000-09-12 2009-04-01 Yanmar Co Ltd HYDRAULIC VEHICLE CIRCUIT FOR CARRYING OUT EXCAVATION AND PIVOTING OPERATIONS
CN104508330A (zh) * 2012-06-19 2015-04-08 特纳动力系统有限公司 变速箱液压回路
JP2018071572A (ja) * 2016-10-25 2018-05-10 株式会社竹内製作所 油圧式走行装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5370284A (en) * 1976-12-03 1978-06-22 Caterpillar Tractor Co Hydraulic device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5370284A (en) * 1976-12-03 1978-06-22 Caterpillar Tractor Co Hydraulic device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1384827A4 (en) * 2000-09-12 2009-04-01 Yanmar Co Ltd HYDRAULIC VEHICLE CIRCUIT FOR CARRYING OUT EXCAVATION AND PIVOTING OPERATIONS
CN104508330A (zh) * 2012-06-19 2015-04-08 特纳动力系统有限公司 变速箱液压回路
JP2018071572A (ja) * 2016-10-25 2018-05-10 株式会社竹内製作所 油圧式走行装置

Also Published As

Publication number Publication date
JPH0412335B2 (enrdf_load_stackoverflow) 1992-03-04

Similar Documents

Publication Publication Date Title
US4528892A (en) Hydraulic circuit system for construction machine
JP2003148407A (ja) 油圧回路
US4561824A (en) Hydraulic drive system for civil engineering and construction machinery
US4570441A (en) Hydraulic vehicle control system
KR20030008069A (ko) 굴삭기의 주행 및 프론트작업의 복합작업용 유압제어장치
JPH0216416B2 (enrdf_load_stackoverflow)
JPS60133128A (ja) 油圧掘削機の油圧回路
JPS61142235A (ja) 油圧ショベル等の建設機械の油圧回路
JP2745321B2 (ja) 建設機械の油圧回路
JP2635206B2 (ja) 掘削作業車の油圧回路構造
JPS60123629A (ja) 油圧ショベルの油圧回路
JPH0143098B2 (enrdf_load_stackoverflow)
JPH0411690B2 (enrdf_load_stackoverflow)
JPH09165796A (ja) 作業機械の油圧回路
JPH11131530A (ja) 建設機械の走行制御装置
JPH0133612B2 (enrdf_load_stackoverflow)
JPS5961633A (ja) 油圧作業機の油圧回路
JPS61113932A (ja) 建設機械の補助作業機用油圧回路
JPH0649644Y2 (ja) クローラ式油圧ショベルの油圧回路
JPS60233235A (ja) 自走式油圧機械の油圧制御回路
JPH062344A (ja) 油圧作業機の油圧回路
JPH0258412B2 (enrdf_load_stackoverflow)
JPH0643259Y2 (ja) 建設機械の油圧装置
JPS5811925Y2 (ja) 合流回路
JPS584035A (ja) 油圧作業機械の油圧回路

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term