DE69511985T2 - Vorrichtung für Geradeausfahrt bei schweren Baumaschinen - Google Patents

Vorrichtung für Geradeausfahrt bei schweren Baumaschinen

Info

Publication number
DE69511985T2
DE69511985T2 DE69511985T DE69511985T DE69511985T2 DE 69511985 T2 DE69511985 T2 DE 69511985T2 DE 69511985 T DE69511985 T DE 69511985T DE 69511985 T DE69511985 T DE 69511985T DE 69511985 T2 DE69511985 T2 DE 69511985T2
Authority
DE
Germany
Prior art keywords
construction machinery
straight ahead
heavy construction
driving straight
driving
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 - Fee Related
Application number
DE69511985T
Other languages
English (en)
Other versions
DE69511985D1 (de
Inventor
Dae Seung Chung
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.)
Volvo Construction Equipment AB
Original Assignee
Volvo Construction Equipment Korea 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 Volvo Construction Equipment Korea Co Ltd filed Critical Volvo Construction Equipment Korea Co Ltd
Application granted granted Critical
Publication of DE69511985D1 publication Critical patent/DE69511985D1/de
Publication of DE69511985T2 publication Critical patent/DE69511985T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
    • F15B2211/30595—Assemblies of multiple valves having multiple valves for multiple output members with additional valves between the groups of valves for multiple output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/355—Pilot pressure control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
DE69511985T 1994-10-29 1995-07-11 Vorrichtung für Geradeausfahrt bei schweren Baumaschinen Expired - Fee Related DE69511985T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940028044A KR100200028B1 (ko) 1994-10-29 1994-10-29 중장비의 직진주행장치

Publications (2)

Publication Number Publication Date
DE69511985D1 DE69511985D1 (de) 1999-10-14
DE69511985T2 true DE69511985T2 (de) 2000-01-20

Family

ID=19396446

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69511985T Expired - Fee Related DE69511985T2 (de) 1994-10-29 1995-07-11 Vorrichtung für Geradeausfahrt bei schweren Baumaschinen

Country Status (6)

Country Link
US (1) US5568727A (de)
EP (1) EP0709579B1 (de)
JP (1) JP2769800B2 (de)
KR (1) KR100200028B1 (de)
CN (1) CN1072321C (de)
DE (1) DE69511985T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100518748B1 (ko) * 1998-10-02 2005-11-25 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 중장비의 주행직진 유압회로
JP4212225B2 (ja) * 2000-07-28 2009-01-21 株式会社小松製作所 建設機械における走行油圧回路
KR100406277B1 (ko) * 2000-12-27 2003-11-17 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 주행 독립밸브를 갖는 건설기계용 유압회로
DE10255738A1 (de) * 2002-11-07 2004-05-27 Bosch Rexroth Ag Hydraulisches Zweikreissystem
JP4380643B2 (ja) * 2006-02-20 2009-12-09 コベルコ建機株式会社 作業機械の油圧制御装置
US7614225B2 (en) * 2006-04-18 2009-11-10 Volvo Construction Equipment Holding Sweden Ab Straight traveling hydraulic circuit
KR101276982B1 (ko) * 2006-04-19 2013-06-19 두산인프라코어 주식회사 굴삭기의 주행복합동작 제어용 유압시스템
JP4979491B2 (ja) * 2007-07-09 2012-07-18 カヤバ工業株式会社 建設機械用車両の走行制御装置
JP6334885B2 (ja) * 2013-10-15 2018-05-30 川崎重工業株式会社 油圧駆動システム
JP6307292B2 (ja) * 2014-01-31 2018-04-04 Ｋｙｂ株式会社 作業機の制御システム
KR102461679B1 (ko) * 2015-06-03 2022-11-01 현대두산인프라코어 주식회사 건설기계의 제어 시스템
KR102388136B1 (ko) * 2016-05-18 2022-04-19 현대두산인프라코어(주) 건설 기계의 안전 시스템
JP6732650B2 (ja) * 2016-12-22 2020-07-29 株式会社クボタ 作業機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5667028A (en) * 1979-11-06 1981-06-05 Hitachi Constr Mach Co Ltd Hydraulic circuit of hydraulic shovel
JPS60115730A (ja) * 1983-11-25 1985-06-22 Kayaba Ind Co Ltd 建設車両の制御回路
JPS62117923A (ja) * 1985-11-15 1987-05-29 Kobe Steel Ltd 建設機械の走行制御回路
JPH07122276B2 (ja) * 1989-07-07 1995-12-25 油谷重工株式会社 建設機械の油圧ポンプ制御回路
JPH03187422A (ja) * 1989-12-18 1991-08-15 Komatsu Ltd 油圧回路
SE512653C2 (sv) * 1997-11-21 2000-04-17 Sandvik Ab Anordning för jordförstärkning, verktyg och metod

Also Published As

Publication number Publication date
JPH08128077A (ja) 1996-05-21
CN1122415A (zh) 1996-05-15
KR960014683A (ko) 1996-05-22
CN1072321C (zh) 2001-10-03
EP0709579A2 (de) 1996-05-01
KR100200028B1 (ko) 1999-06-15
DE69511985D1 (de) 1999-10-14
EP0709579A3 (de) 1997-04-16
EP0709579B1 (de) 1999-09-08
US5568727A (en) 1996-10-29
JP2769800B2 (ja) 1998-06-25

Similar Documents

Publication Publication Date Title
DE69526674D1 (de) Eintreibewerkzeug-einsatz für befestigungsmittel
DE69408435T2 (de) Eintreibewerkzeug für Befestigungsmittel
DE69941021D1 (de) Vorrichtung zum Erkennen von Hindernissen für Kraftfahrzeuge
DE69609221D1 (de) Navigationsgerät für Fahrzeuge
DE19681283T1 (de) Elektronisch gesteuerte Kühlvorrichtung für einen Fahrzeugmotor
ID16276A (id) Alat pengeluaran untuk mesin penyejuk udara.
DE69807400T2 (de) Neigungskontrollvorrichtung für industrielle Fahrzeuge
DE69525519T2 (de) Steuervorrichtung für Fahrzeuge
DE59404109D1 (de) Antriebsvorrichtung für ein verstellbares fahrzeugteil
DE69623857T2 (de) Tiefenanschlagsystem für krattangetriebenes Werkzeug
DE69527426T2 (de) Eingangswerkzeug für bohrloch
DE59601854D1 (de) Eintreibgerät für Befestigungsmittel
DE69518507T2 (de) Fahrantriebsvorrichtung für arbeitsfahrzeug
DE69511985T2 (de) Vorrichtung für Geradeausfahrt bei schweren Baumaschinen
DE69510723D1 (de) Arbeitsfahrzeug
DE59503608D1 (de) Eintreibgerät für Befestigungsmittel
DE59207530D1 (de) Eintreibgerät für Heftmittel
DE69841447D1 (de) Stabilitätsregelvorrichtung für Industriefahrzeuge
DE69607552D1 (de) Stabilitätsregelvorrichtung für Kraftfahrzeuge
DE59800026D1 (de) Schaltvorrichtung für Wechselgetriebe von Kraftfahrzeugen
DE59803753D1 (de) Schaltvorrichtung für Wechselgetriebe von Kraftfahrzeugen
DE69100945D1 (de) Antriebsvorrichtung für zieh-drück-schweissbrenner.
DE59601176D1 (de) Stirnseitenmitnehmer für Werkzeugmaschinen
DE69635839D1 (de) Ansteuervorrichtung für arbeitsfahrzeug
DE59604936D1 (de) Schaltvorrichtung für Wechselgetriebe von Kraftfahrzeugen

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: VOLVO CONSTRUCTION EQUIPMENT HOLDING SWEDEN AB, ES

8339 Ceased/non-payment of the annual fee