JPS6436827A - Controller for traveling of construction machine - Google Patents

Controller for traveling of construction machine

Info

Publication number
JPS6436827A
JPS6436827A JP62190319A JP19031987A JPS6436827A JP S6436827 A JPS6436827 A JP S6436827A JP 62190319 A JP62190319 A JP 62190319A JP 19031987 A JP19031987 A JP 19031987A JP S6436827 A JPS6436827 A JP S6436827A
Authority
JP
Japan
Prior art keywords
meter
traveling
valve
supplied
discharge oil
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
JP62190319A
Other languages
Japanese (ja)
Other versions
JP2520653B2 (en
Inventor
Kimio Nishida
Yukio Moriya
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP62190319A priority Critical patent/JP2520653B2/en
Publication of JPS6436827A publication Critical patent/JPS6436827A/en
Application granted granted Critical
Publication of JP2520653B2 publication Critical patent/JP2520653B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/421—Motor capacity control by electro-hydraulic control means, e.g. using solenoid valves

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

PURPOSE:To simplify the constitution of circuits by providing a meter-in side pilot control valve and a meter-out side pilot control valve which are operated concurrently by a pilot valve for before and behind a bilateral traveling motor. CONSTITUTION:Discharge oil from variable pumps 2 and 3 is supplied through meter-in side pilot valves 6, 8, and 31 from pilot valves 34 and 19 to left- and right-handed traveling motors 10 and 12 when the vehicle goes straight forwards. During the composite operation period of traveling and working machines, left- and right-handed traveling circuits are connected in parallel by the meter-in side pilot control valves 6 and 8. The discharge oil from one variable pump 2 is supplied to the motors 10 and 12, and the valve 31 is closed by the valve 34. The discharge oil from the other pump 3 is supplied through the meter-in side control valve 35 to working machine. The straight forward stability during the composite operation period can thus be obtained.
JP62190319A 1987-07-31 1987-07-31 Running control device for construction machinery Expired - Lifetime JP2520653B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62190319A JP2520653B2 (en) 1987-07-31 1987-07-31 Running control device for construction machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62190319A JP2520653B2 (en) 1987-07-31 1987-07-31 Running control device for construction machinery

Publications (2)

Publication Number Publication Date
JPS6436827A true JPS6436827A (en) 1989-02-07
JP2520653B2 JP2520653B2 (en) 1996-07-31

Family

ID=16256193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62190319A Expired - Lifetime JP2520653B2 (en) 1987-07-31 1987-07-31 Running control device for construction machinery

Country Status (1)

Country Link
JP (1) JP2520653B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100518770B1 (en) * 2003-02-12 2005-10-05 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 hydraulic system of heavy equipment option device
JP2014507609A (en) * 2010-12-27 2014-03-27 ボルボ コンストラクション イクイップメント アーベー Travel control system for construction machinery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100518770B1 (en) * 2003-02-12 2005-10-05 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 hydraulic system of heavy equipment option device
JP2014507609A (en) * 2010-12-27 2014-03-27 ボルボ コンストラクション イクイップメント アーベー Travel control system for construction machinery

Also Published As

Publication number Publication date
JP2520653B2 (en) 1996-07-31

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