JP2677983B2 - 掘削機の流量制御装置 - Google Patents

掘削機の流量制御装置

Info

Publication number
JP2677983B2
JP2677983B2 JP8162733A JP16273396A JP2677983B2 JP 2677983 B2 JP2677983 B2 JP 2677983B2 JP 8162733 A JP8162733 A JP 8162733A JP 16273396 A JP16273396 A JP 16273396A JP 2677983 B2 JP2677983 B2 JP 2677983B2
Authority
JP
Japan
Prior art keywords
flow rate
swing
control
boom
arm
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
JP8162733A
Other languages
English (en)
Japanese (ja)
Other versions
JPH093977A (ja
Inventor
鍾 文 チョ
Original Assignee
大宇重工業株式会社
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 大宇重工業株式会社 filed Critical 大宇重工業株式会社
Publication of JPH093977A publication Critical patent/JPH093977A/ja
Application granted granted Critical
Publication of JP2677983B2 publication Critical patent/JP2677983B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves including an electronic controller
    • 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
    • E02F9/2242—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance including an electronic controller
    • 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
    • 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
JP8162733A 1995-06-23 1996-06-24 掘削機の流量制御装置 Expired - Lifetime JP2677983B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1995-17192 1995-06-23
KR1019950017192A KR0162960B1 (ko) 1995-06-23 1995-06-23 굴삭기의 조작성 향상 유량제어장치

Publications (2)

Publication Number Publication Date
JPH093977A JPH093977A (ja) 1997-01-07
JP2677983B2 true JP2677983B2 (ja) 1997-11-17

Family

ID=19418109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8162733A Expired - Lifetime JP2677983B2 (ja) 1995-06-23 1996-06-24 掘削機の流量制御装置

Country Status (2)

Country Link
JP (1) JP2677983B2 (ko)
KR (1) KR0162960B1 (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100805058B1 (ko) * 2001-07-06 2008-02-20 두산인프라코어 주식회사 굴삭기의 도랑파기작업용 유압제어장치
KR101281232B1 (ko) * 2006-09-29 2013-07-02 두산인프라코어 주식회사 가변용량형 유압펌프의 용량 제어장치
JP2008115989A (ja) * 2006-11-07 2008-05-22 Hitachi Constr Mach Co Ltd 建設機械の油圧駆動装置
JP2008115990A (ja) * 2006-11-07 2008-05-22 Hitachi Constr Mach Co Ltd 建設機械の油圧駆動装置
US20130291530A1 (en) * 2010-12-27 2013-11-07 Volvo Construction Equipment Ab Boom-swivel compound drive hydraulic control system of construction machine
WO2022209920A1 (ja) * 2021-03-29 2022-10-06 日立建機株式会社 作業機械
CN115030246B (zh) * 2022-05-23 2024-01-16 中联重科土方机械有限公司 正流量挖掘机及其控制方法、控制装置和控制器

Also Published As

Publication number Publication date
KR970001761A (ko) 1997-01-24
JPH093977A (ja) 1997-01-07
KR0162960B1 (ko) 1999-01-15

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