JPH0261579B2 - - Google Patents

Info

Publication number
JPH0261579B2
JPH0261579B2 JP57151762A JP15176282A JPH0261579B2 JP H0261579 B2 JPH0261579 B2 JP H0261579B2 JP 57151762 A JP57151762 A JP 57151762A JP 15176282 A JP15176282 A JP 15176282A JP H0261579 B2 JPH0261579 B2 JP H0261579B2
Authority
JP
Japan
Prior art keywords
valve
pilot
swing
accumulator
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.)
Expired - Lifetime
Application number
JP57151762A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5941532A (ja
Inventor
Kimio Katsuki
Kazuhiko Ootsubo
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 JP57151762A priority Critical patent/JPS5941532A/ja
Publication of JPS5941532A publication Critical patent/JPS5941532A/ja
Publication of JPH0261579B2 publication Critical patent/JPH0261579B2/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
    • E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating

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)
  • Jib Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)
JP57151762A 1982-09-02 1982-09-02 旋回用油圧回路 Granted JPS5941532A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57151762A JPS5941532A (ja) 1982-09-02 1982-09-02 旋回用油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57151762A JPS5941532A (ja) 1982-09-02 1982-09-02 旋回用油圧回路

Publications (2)

Publication Number Publication Date
JPS5941532A JPS5941532A (ja) 1984-03-07
JPH0261579B2 true JPH0261579B2 (en, 2012) 1990-12-20

Family

ID=15525736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57151762A Granted JPS5941532A (ja) 1982-09-02 1982-09-02 旋回用油圧回路

Country Status (1)

Country Link
JP (1) JPS5941532A (en, 2012)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60154457U (ja) * 1984-03-23 1985-10-15 新キャタピラ−三菱株式会社 カツテイングエツジ取付構造
JPS61112069U (en, 2012) * 1984-12-25 1986-07-15
JPH0412078Y2 (en, 2012) * 1985-12-09 1992-03-25

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199279U (en, 2012) * 1981-06-12 1982-12-17

Also Published As

Publication number Publication date
JPS5941532A (ja) 1984-03-07

Similar Documents

Publication Publication Date Title
KR101932304B1 (ko) 작업 기계의 유압 구동 장치
JPH0366838A (ja) 油圧掘削機における直線掘削制御装置
JP7297596B2 (ja) 建設機械の油圧システム
EP0638690A4 (en) HYDRAULIC CONTROL DEVICE FOR A SITE MACHINE.
WO2014091684A1 (ja) 建設機械
JP5083202B2 (ja) 建設機械の旋回ブレーキ装置
EP1088995A1 (en) Hydraulic circuit device
JP2021032317A (ja) 建設機械の油圧システム
JPH0261579B2 (en, 2012)
JPS63138026A (ja) 油圧シヨベルの油圧回路
KR0169880B1 (ko) 굴삭기의 붐 상승속도 및 선회속도 조절장치
JP2721383B2 (ja) 作業機械の油圧回路
JP3469980B2 (ja) ブームスイング式油圧ショベル
JP2871112B2 (ja) 建設機械の旋回回路
JPH0442368Y2 (en, 2012)
JP2020139573A (ja) 油圧ショベル駆動システム
JP2000096631A (ja) 油圧ショベルの油圧回路
JPH07317713A (ja) 建設機械の油圧回路
JPS58203202A (ja) 油圧回路
JP4220328B2 (ja) 建設機械の運転室干渉防止装置
JPH0442367Y2 (en, 2012)
JP3163308B2 (ja) 再生回路用弁装置
JP3834522B2 (ja) 流体圧回路
JP3250417B2 (ja) 油圧ショベルの油圧回路
JP3460277B2 (ja) 作業機械の油圧装置