A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a slewing type hydraulic working machine which can appropriately distribute hydraulic oil to a slewing motor and a hydraulic actuator other than the motor.SOLUTION: A slewing type hydraulic working machine includes: a hydraulic pump 32; a slewing motor 36; a slewing control valve 42 interposed between the hydraulic pump 32 and the slewing motor 36; a specific actuator 26 other than the slewing motor 36, which receives a supply of the hydraulic oil from the hydraulic pump 32; an actuator flow rate restriction valve 40 interposed between the hydraulic pump 32 and the specific actuator 26; slewing operation members 55A and 55B to which a slewing operation is given; a slewing rate detection section 64; and actuator flow rate restriction parts 68 and 70 which actuate the actuator flow rate restriction valve 40 so as to restrict the actuator flow rate with a larger restriction degree as the slewing rate is smaller in slewing operation.SELECTED DRAWING: Figure 2
【課題】旋回モータ及びそれ以外の油圧アクチュエータへの作動油の適正な分配を行うことが可能な旋回式油圧作業機械を提供する。【解決手段】旋回式油圧作業機械は、油圧ポンプ３２と、旋回モータ３６と、油圧ポンプ３２と旋回モータ３６との間に介在する旋回制御弁４２と、旋回モータ３６以外の油圧アクチュエータであって油圧ポンプ３２からの作動油の供給を受ける特定アクチュエータ２６と、油圧ポンプ３２と特定アクチュエータ２６との間に介在するアクチュエータ流量制限弁４０と、旋回操作が与えられる旋回操作部材５５Ａ，５５Ｂと、旋回速度検出部６４と、旋回操作時に旋回速度が小さいほど大きな制限度でアクチュエータ流量を制限するようにアクチュエータ流量制限弁４０を作動させるアクチュエータ流量制限部６８，７０と、を備える。【選択図】図２
To provide a slewing type hydraulic working machine which can appropriately distribute hydraulic oil to a slewing motor and a hydraulic actuator other than the motor.SOLUTION: A slewing type hydraulic working machine includes: a hydraulic pump 32; a slewing motor 36; a slewing control valve 42 interposed between the hydraulic pump 32 and the slewing motor 36; a specific actuator 26 other than the slewing motor 36, which receives a supply of the hydraulic oil from the hydraulic pump 32; an actuator flow rate restriction valve 40 interposed between the hydraulic pump 32 and the specific actuator 26; slewing operation members 55A and 55B to which a slewing operation is given; a slewing rate detection section 64; and actuator flow rate restriction parts 68 and 70 which actuate the actuator flow rate restriction valve 40 so as to restrict the actuator flow rate with a larger restriction degree as the slewing rate is smaller in slewing operation.SELECTED DRAWING: Figure 2
【課題】旋回モータ及びそれ以外の油圧アクチュエータへの作動油の適正な分配を行うことが可能な旋回式油圧作業機械を提供する。【解決手段】旋回式油圧作業機械は、油圧ポンプ３２と、旋回モータ３６と、油圧ポンプ３２と旋回モータ３６との間に介在する旋回制御弁４２と、旋回モータ３６以外の油圧アクチュエータであって油圧ポンプ３２からの作動油の供給を受ける特定アクチュエータ２６と、油圧ポンプ３２と特定アクチュエータ２６との間に介在するアクチュエータ流量制限弁４０と、旋回操作が与えられる旋回操作部材５５Ａ，５５Ｂと、旋回速度検出部６４と、旋回操作時に旋回速度が小さいほど大きな制限度でアクチュエータ流量を制限するようにアクチュエータ流量制限弁４０を作動させるアクチュエータ流量制限部６８，７０と、を備える。【選択図】図２
SLEWING TYPE HYDRAULIC WORKING MACHINE
旋回式油圧作業機械
MAEDA KENGO (author)
2019-02-21
Patent
Electronic Resource
Japanese