EP1550774A3 - Steuersystem eines Stempels eines Radladers - Google Patents

Steuersystem eines Stempels eines Radladers Download PDF

Info

Publication number
EP1550774A3
EP1550774A3 EP04030864A EP04030864A EP1550774A3 EP 1550774 A3 EP1550774 A3 EP 1550774A3 EP 04030864 A EP04030864 A EP 04030864A EP 04030864 A EP04030864 A EP 04030864A EP 1550774 A3 EP1550774 A3 EP 1550774A3
Authority
EP
European Patent Office
Prior art keywords
signal
cylinder control
ram cylinder
ram
valve
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
EP04030864A
Other languages
English (en)
French (fr)
Other versions
EP1550774A2 (de
EP1550774B1 (de
Inventor
Dong Jae Lee
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.)
HD Hyundai Infracore Co Ltd
Original Assignee
Daewoo Heavy Industries and Machinery 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 Daewoo Heavy Industries and Machinery Ltd filed Critical Daewoo Heavy Industries and Machinery Ltd
Publication of EP1550774A2 publication Critical patent/EP1550774A2/de
Publication of EP1550774A3 publication Critical patent/EP1550774A3/de
Application granted granted Critical
Publication of EP1550774B1 publication Critical patent/EP1550774B1/de
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
    • 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
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • 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
    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump

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)
EP04030864A 2003-12-29 2004-12-28 Steuersystem eines Stempels eines Radladers Ceased EP1550774B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020030098611A KR100988420B1 (ko) 2003-12-29 2003-12-29 휠타입 굴삭기의 램실린더 제어장치
KR2003098611 2003-12-29

Publications (3)

Publication Number Publication Date
EP1550774A2 EP1550774A2 (de) 2005-07-06
EP1550774A3 true EP1550774A3 (de) 2005-08-10
EP1550774B1 EP1550774B1 (de) 2008-03-26

Family

ID=34567846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04030864A Ceased EP1550774B1 (de) 2003-12-29 2004-12-28 Steuersystem eines Stempels eines Radladers

Country Status (5)

Country Link
EP (1) EP1550774B1 (de)
JP (1) JP2005194870A (de)
KR (1) KR100988420B1 (de)
CN (1) CN100591871C (de)
DE (1) DE602004012700T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100753988B1 (ko) * 2006-06-09 2007-08-31 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 건설중장비용 엑슬 록킹 실린더 구조
JP4944537B2 (ja) * 2006-08-09 2012-06-06 日立建機株式会社 油圧駆動車両の走行制御装置
DE102007018405B4 (de) * 2007-04-17 2022-09-15 Alpha Fluid Hydrauliksysteme Müller GmbH Elektrohydraulische Ansteuerung
CN102338134B (zh) * 2011-10-24 2013-08-21 中联重科股份有限公司 混凝土泵送设备及其泵送油缸的换向控制方法
KR102042285B1 (ko) * 2013-12-26 2019-11-27 두산인프라코어 주식회사 휠 타입 건설기계의 램실린더 제어 장치 및 그 방법
US9663335B2 (en) * 2014-08-27 2017-05-30 Caterpillar Inc. Hydraulic winch control system and method
CN105351272B (zh) * 2015-12-11 2017-05-24 重庆纳川山隅重工设备有限公司 液压凿岩钻机的自适应阀组
KR102533655B1 (ko) * 2016-09-05 2023-05-17 에이치디현대인프라코어 주식회사 건설 기계
CN116241516B (zh) * 2022-12-26 2025-08-15 中国铁建重工集团股份有限公司 掘锚机泵站的控制系统、掘锚机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835970A (en) * 1985-08-13 1989-06-06 Nissan Motor Co. Ltd. Pneumatic power brake system
US5919243A (en) * 1995-12-29 1999-07-06 Volvo Construction Equipment Korea Co., Ltd. Work brake apparatus for wheel type excavator
US20030011240A1 (en) * 2001-07-11 2003-01-16 Deere & Company, A Delaware Corporation Secondary brake system with electrohydraulic proportional valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55114610A (en) * 1979-02-21 1980-09-04 Kubota Ltd Working car
NL8200556A (nl) * 1982-02-13 1983-09-01 Rotterdamsche Droogdok Mij Voertuig.
JPS6361621A (ja) 1986-09-02 1988-03-17 Hitachi Constr Mach Co Ltd 作業車両のラムロツク制御装置
JP2937329B2 (ja) * 1987-10-26 1999-08-23 日立建機株式会社 作業車両のラムロック制御装置
JPH0662269B2 (ja) * 1989-04-21 1994-08-17 株式会社神戸製鋼所 移動式クレーンの変位抑制装置
KR200315168Y1 (ko) 2003-02-19 2003-06-02 정권철 굴삭기의 차축 록킹제어장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835970A (en) * 1985-08-13 1989-06-06 Nissan Motor Co. Ltd. Pneumatic power brake system
US5919243A (en) * 1995-12-29 1999-07-06 Volvo Construction Equipment Korea Co., Ltd. Work brake apparatus for wheel type excavator
US20030011240A1 (en) * 2001-07-11 2003-01-16 Deere & Company, A Delaware Corporation Secondary brake system with electrohydraulic proportional valve

Also Published As

Publication number Publication date
JP2005194870A (ja) 2005-07-21
CN1637211A (zh) 2005-07-13
DE602004012700D1 (de) 2008-05-08
KR100988420B1 (ko) 2010-10-18
KR20050067620A (ko) 2005-07-05
CN100591871C (zh) 2010-02-24
EP1550774A2 (de) 2005-07-06
DE602004012700T2 (de) 2009-04-16
EP1550774B1 (de) 2008-03-26

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