EP1300519B1 - Baumaschine mit einem hydraulischen kreislauf und notbetriebsverfahren eines anbaugerätes. - Google Patents

Baumaschine mit einem hydraulischen kreislauf und notbetriebsverfahren eines anbaugerätes. Download PDF

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Publication number
EP1300519B1
EP1300519B1 EP01934472A EP01934472A EP1300519B1 EP 1300519 B1 EP1300519 B1 EP 1300519B1 EP 01934472 A EP01934472 A EP 01934472A EP 01934472 A EP01934472 A EP 01934472A EP 1300519 B1 EP1300519 B1 EP 1300519B1
Authority
EP
European Patent Office
Prior art keywords
pilot
control valve
pressure
pressure oil
boom
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
EP01934472A
Other languages
English (en)
French (fr)
Other versions
EP1300519A4 (de
EP1300519A1 (de
EP1300519A9 (de
Inventor
Hiroshi Onoue
Yasushi Tanaka
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
Publication of EP1300519A1 publication Critical patent/EP1300519A1/de
Publication of EP1300519A9 publication Critical patent/EP1300519A9/de
Publication of EP1300519A4 publication Critical patent/EP1300519A4/de
Application granted granted Critical
Publication of EP1300519B1 publication Critical patent/EP1300519B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • E02F9/2282—Systems using center bypass type changeover valves
    • 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

Definitions

  • the front attachment includes a boom capable of rotating along an upward/downward direction relative to a main body of said construction machine and the pressure oil injection port is provided at the pilot line located on a boom-down side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)

Claims (6)

  1. Baumaschine mit einem Hydraulikkreis, der umfasst:
    durch einen Motor angetrieben wird, einen Betätigungszylinder (1; 101), der durch von der Hydraulikpumpe (11; 111) gefördertes Öl angetrieben wird,
    ein Frontanbaugerät (FA), das durch den Betätigungszylinder (1; 101) angetrieben wird,
    ein fremdgesteuertes Hydraulik-Steuerventil (12; 112), das durch einen Steueröldruck geschaltet wird, um das Einströmen/Ausströmen von Drucköl zum/vom Betätigungszylinder (1; 101) zu steuern,
    dadurch gekennzeichnet, dass
    ein Drucköl-Einspritzeingang (25; 70b) an einer Steuerleitung (23b; 123b) vorgesehen ist, durch die der Steueröldruck zum Steuerventil (12; 112) geleitet wird, der mit einer manuellen Hydraulikpumpe (30) verbunden werden kann, um so ein Schalten des Steuerventils (12; 112) durch von der manuellen Hydraulikpumpe (30) durch den Drucköl-Einspritzeingang (25; 70b) zur Steuerleitung (23b; 123b) geliefertes Drucköl zu ermöglichen.
  2. Baumaschine nach Anspruch 1, wobei das Frontanbaugerät (FA) einen Ausleger (2; 102) aufweist, der sich längs einer Aufwärts/AbwärtsRichtung relativ zu einem Hauptteil der Baumaschine drehen kann, und der Drucköl-Einspritzeingang (25; 70b) an der Steuerleitung vorgesehen ist, die sich an der Seite zum Absenken des Auslegers befindet.
  3. Baumaschine nach Anspruch 1 oder 2, wobei der Drucköl-Einspritzeingang (25; 70b) an einer Position vorgesehen ist, die sich außerhalb des Arbeitsbereichs des Frontanbaugeräts (FA) befindet.
  4. Baumaschine nach einem der Ansprüche 1 bis 3, wobei die manuelle Hydraulikpumpe eine Fettpresse (30) ist.
  5. Baumaschine nach einem der Ansprüche 1 bis 4, die ferner aufweist:
    ein Öffnungs- und Schließventil (70), das zwischen dem Drucköl-Einspritzeingang (70b) und einer Hydraulikquelle (30) vorgesehen ist, von welcher der Steueröldruck herrührt.
  6. Verfahren zum Notantrieb eines Anbaugerätes zum Antrieb eines Frontanbaugerätes (FA) der Baumaschine nach einem der Ansprüche 1 bis 5 durch Steuern von Öl, das von der vom Motor angetriebenen Hydraulikpumpe (11; 111) gefördert wird, durch das Steuerventil (12; 112), das durch den Steueröldruck geschaltet wird,
    gekennzeichnet durch
    Einführen eines Not-Steueröldrucks, der an der manuellen Hydraulikpumpe (30) erzeugt wird, in die Steuerleitung (23b; 123b) durch den Drucköl-Einspritzeingang (25; 70b)
    und
    Antreiben des Frontanbaugerätes (FA) durch Beaufschlagen des Steuerventils (12; 112) mit dem Not-Steueröldruck. REVENDICATIONS
EP01934472A 2000-05-31 2001-05-31 Baumaschine mit einem hydraulischen kreislauf und notbetriebsverfahren eines anbaugerätes. Expired - Lifetime EP1300519B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000161468 2000-05-31
JP2000161468A JP2001336177A (ja) 2000-05-31 2000-05-31 建設機械の油圧回路およびアタッチメント緊急駆動方法
PCT/JP2001/004625 WO2001092651A1 (fr) 2000-05-31 2001-05-31 Circuit hydraulique et procede d'entrainement d'urgence de fixation pour machines de construction

Publications (4)

Publication Number Publication Date
EP1300519A1 EP1300519A1 (de) 2003-04-09
EP1300519A9 EP1300519A9 (de) 2003-08-06
EP1300519A4 EP1300519A4 (de) 2009-03-11
EP1300519B1 true EP1300519B1 (de) 2010-12-22

Family

ID=18665488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01934472A Expired - Lifetime EP1300519B1 (de) 2000-05-31 2001-05-31 Baumaschine mit einem hydraulischen kreislauf und notbetriebsverfahren eines anbaugerätes.

Country Status (4)

Country Link
EP (1) EP1300519B1 (de)
JP (1) JP2001336177A (de)
DE (1) DE60143698D1 (de)
WO (1) WO2001092651A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013095926A1 (en) * 2011-12-23 2013-06-27 Caterpillar Inc. Hydraulic system for controlling a work implement
US9708796B2 (en) 2014-09-25 2017-07-18 Cnh Industrial America Llc Hydraulic valve
US9790964B2 (en) 2014-09-25 2017-10-17 Cnh Industrial America Llc Hydraulic system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4294563B2 (ja) * 2004-09-10 2009-07-15 日立建機株式会社 作業機械
JP2011226104A (ja) * 2010-04-16 2011-11-10 Hitachi Constr Mach Co Ltd 長尺フロントの動力異常停止時降下装置と降下方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976659A (ja) 1982-10-25 1984-05-01 Nippon Kokan Kk <Nkk> 地金洗浄用バ−ナ−
JPH0617885Y2 (ja) * 1987-04-14 1994-05-11 セイレイ工業株式会社 バツクホ−における作業機の降下に対する安全装置
JPH0693630A (ja) * 1992-09-11 1994-04-05 Hitachi Constr Mach Co Ltd 作業機用バケット制御装置
JPH07317713A (ja) * 1994-05-27 1995-12-08 Yutani Heavy Ind Ltd 建設機械の油圧回路
JP2000096631A (ja) * 1998-09-18 2000-04-04 Hitachi Constr Mach Co Ltd 油圧ショベルの油圧回路

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013095926A1 (en) * 2011-12-23 2013-06-27 Caterpillar Inc. Hydraulic system for controlling a work implement
US9085873B2 (en) 2011-12-23 2015-07-21 Caterpillar Inc. Hydraulic system for controlling a work implement
US9708796B2 (en) 2014-09-25 2017-07-18 Cnh Industrial America Llc Hydraulic valve
US9790964B2 (en) 2014-09-25 2017-10-17 Cnh Industrial America Llc Hydraulic system

Also Published As

Publication number Publication date
EP1300519A4 (de) 2009-03-11
EP1300519A1 (de) 2003-04-09
JP2001336177A (ja) 2001-12-07
DE60143698D1 (de) 2011-02-03
EP1300519A9 (de) 2003-08-06
WO2001092651A1 (fr) 2001-12-06

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