KR980009676A - 2피스 붐형 건설기계의 스트로크 엔드 쇼크 완화장치 - Google Patents

2피스 붐형 건설기계의 스트로크 엔드 쇼크 완화장치 Download PDF

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Publication number
KR980009676A
KR980009676A KR1019970024832A KR19970024832A KR980009676A KR 980009676 A KR980009676 A KR 980009676A KR 1019970024832 A KR1019970024832 A KR 1019970024832A KR 19970024832 A KR19970024832 A KR 19970024832A KR 980009676 A KR980009676 A KR 980009676A
Authority
KR
South Korea
Prior art keywords
boom
angle
flow rate
cylinder
stroke end
Prior art date
Application number
KR1019970024832A
Other languages
English (en)
Korean (ko)
Inventor
노리타카 나가타
타케시 나카모리
Original Assignee
안자키 사토루
카부시키가이샤 고마쓰세사쿠쇼
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 안자키 사토루, 카부시키가이샤 고마쓰세사쿠쇼 filed Critical 안자키 사토루
Publication of KR980009676A publication Critical patent/KR980009676A/ko

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
    • E02F9/2214—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing the shock generated at the stroke end
    • 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
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/301—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
    • 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
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)
KR1019970024832A 1996-07-19 1997-06-16 2피스 붐형 건설기계의 스트로크 엔드 쇼크 완화장치 KR980009676A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP96-190901 1996-07-19
JP19090196A JP3734189B2 (ja) 1996-07-19 1996-07-19 ２ピースブーム型建設機械のストロークエンドショック低減装置

Publications (1)

Publication Number Publication Date
KR980009676A true KR980009676A (ko) 1998-04-30

Family

ID=16265610

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970024832A KR980009676A (ko) 1996-07-19 1997-06-16 2피스 붐형 건설기계의 스트로크 엔드 쇼크 완화장치

Country Status (4)

Country Link
EP (1) EP0919670A4 (de)
JP (1) JP3734189B2 (de)
KR (1) KR980009676A (de)
WO (1) WO1998003739A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7357143B2 (en) 2004-12-20 2008-04-15 Samsung Electronics Co., Ltd. Regulator and gas supply method using the same
KR200475536Y1 (ko) * 2013-12-30 2014-12-09 두산인프라코어 주식회사 관절식 붐 장착 굴삭기의 오토 아이들 해제장치

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100974275B1 (ko) * 2007-12-17 2010-08-06 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 소 선회식 굴삭기의 붐 충격 완화장치 및 그 제어방법
KR101911090B1 (ko) * 2011-12-27 2018-10-25 두산인프라코어 주식회사 인양력 증대 자세교정 장치
CN102591221B (zh) * 2012-02-07 2014-07-09 三一汽车制造有限公司 控制器、多节臂架设备的控制系统和方法、工程机械设备
SG11201608725YA (en) 2014-04-25 2016-11-29 Shire Human Genetic Therapies Methods for purification of messenger rna
KR102054666B1 (ko) * 2017-04-06 2020-01-22 두산인프라코어 주식회사 건설 기계의 유량 제어 방법 및 이를 수행하기 위한 시스템

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4910673A (en) * 1987-05-29 1990-03-20 Hitachi Construction Machinery Co., Ltd. Apparatus for controlling arm movement of industrial vehicle
JPH0257703A (ja) * 1988-08-18 1990-02-27 Kobe Steel Ltd 油圧シリンダの制御方法
JPH02253002A (ja) * 1989-03-27 1990-10-11 Hitachi Constr Mach Co Ltd 作業機械の油圧回路
JPH02135779U (de) * 1989-04-15 1990-11-13
JPH02279841A (ja) * 1989-04-19 1990-11-15 Yutani Heavy Ind Ltd 建設機械の油圧緩衝制御装置
JPH02279838A (ja) * 1989-04-19 1990-11-15 Yutani Heavy Ind Ltd 建設機械の油圧緩衝制御装置
JPH02292420A (ja) * 1989-05-08 1990-12-03 Hitachi Constr Mach Co Ltd 建設機械の故障診断装置
JPH03257229A (ja) * 1990-03-07 1991-11-15 Kubota Corp バックホウの制御装置
JPH07197485A (ja) * 1993-12-28 1995-08-01 Komatsu Ltd 建設機械の作業機制御装置
EP0900886B1 (de) * 1994-03-07 2004-06-02 Hitachi Construction Machinery Co., Ltd. Schwenkbagger
JP3012461B2 (ja) * 1994-09-09 2000-02-21 株式会社クボタ バックホウ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7357143B2 (en) 2004-12-20 2008-04-15 Samsung Electronics Co., Ltd. Regulator and gas supply method using the same
KR200475536Y1 (ko) * 2013-12-30 2014-12-09 두산인프라코어 주식회사 관절식 붐 장착 굴삭기의 오토 아이들 해제장치

Also Published As

Publication number Publication date
WO1998003739A1 (fr) 1998-01-29
EP0919670A1 (de) 1999-06-02
JPH1037246A (ja) 1998-02-10
JP3734189B2 (ja) 2006-01-11
EP0919670A4 (de) 2000-04-05

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