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A platform for research: civil engineering, architecture and urbanism
HYDRAULIC CONTROL DEVICE OF WHEEL TYPE WORK MACHINE
PROBLEM TO BE SOLVED: To provide a hydraulic control device of a wheel type work machine capable of preventing or suppressing generation of a scattering phenomenon, and improving a fuel consumption amount.SOLUTION: A hydraulic control device of a wheel type hydraulic shovel 1 includes a hydraulic pump 6 configured to supply hydraulic oil to both of a hydraulic motor 16 for travel and hydraulic actuators 12-15 for work. A controller 32 is configured to, when the hydraulic actuators 12-15 are operated as a wheel type travel body 2 travels at low speed, operate a travel flow rate control valve 31 so as to reduce a flow rate of hydraulic oil flowing into the hydraulic motor 16 for travel; and when the hydraulic actuators 12-15 for work are operated as the wheel type travel body 2 travels at high speed, operate the travel flow rate control valve 31 so as to maintain the flow rate of hydraulic oil flowing into the hydraulic motor 16 for travel.SELECTED DRAWING: Figure 3
【課題】飛び出し現象の発生を防止又は抑制でき、かつ燃料消費量の改善も図れるホイール式作業機械の油圧制御装置を提供する。【解決手段】走行用油圧モータ１６及び作業用油圧アクチュエータ１２〜１５の両方に圧油を供給する油圧ポンプ６を備えたホイール式油圧ショベル１の油圧制御装置において、コントローラ３２は、ホイール式走行体２が低速で走行中に作業用油圧アクチュエータ１２〜１５が操作されたときには、走行用油圧モータ１６に流入する圧油の流量を低下させるように走行流量制御弁３１を操作し、ホイール式走行体２が高速で走行中に作業用油圧アクチュエータ１２〜１５が操作されたときには、走行用油圧モータ１６に流入する圧油の流量を維持するように走行流量制御弁３１を操作する。【選択図】図３
HYDRAULIC CONTROL DEVICE OF WHEEL TYPE WORK MACHINE
PROBLEM TO BE SOLVED: To provide a hydraulic control device of a wheel type work machine capable of preventing or suppressing generation of a scattering phenomenon, and improving a fuel consumption amount.SOLUTION: A hydraulic control device of a wheel type hydraulic shovel 1 includes a hydraulic pump 6 configured to supply hydraulic oil to both of a hydraulic motor 16 for travel and hydraulic actuators 12-15 for work. A controller 32 is configured to, when the hydraulic actuators 12-15 are operated as a wheel type travel body 2 travels at low speed, operate a travel flow rate control valve 31 so as to reduce a flow rate of hydraulic oil flowing into the hydraulic motor 16 for travel; and when the hydraulic actuators 12-15 for work are operated as the wheel type travel body 2 travels at high speed, operate the travel flow rate control valve 31 so as to maintain the flow rate of hydraulic oil flowing into the hydraulic motor 16 for travel.SELECTED DRAWING: Figure 3
【課題】飛び出し現象の発生を防止又は抑制でき、かつ燃料消費量の改善も図れるホイール式作業機械の油圧制御装置を提供する。【解決手段】走行用油圧モータ１６及び作業用油圧アクチュエータ１２〜１５の両方に圧油を供給する油圧ポンプ６を備えたホイール式油圧ショベル１の油圧制御装置において、コントローラ３２は、ホイール式走行体２が低速で走行中に作業用油圧アクチュエータ１２〜１５が操作されたときには、走行用油圧モータ１６に流入する圧油の流量を低下させるように走行流量制御弁３１を操作し、ホイール式走行体２が高速で走行中に作業用油圧アクチュエータ１２〜１５が操作されたときには、走行用油圧モータ１６に流入する圧油の流量を維持するように走行流量制御弁３１を操作する。【選択図】図３
HYDRAULIC CONTROL DEVICE OF WHEEL TYPE WORK MACHINE
ホイール式作業機械の油圧制御装置
OGURA KOHEI (author) / ODAKA KATSUAKI (author) / KAYANE MASAHIRO (author)
2018-04-05
Patent
Electronic Resource
Japanese