A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To perform an appropriate hydraulic pressure supply to each of several hydraulic actuators as required when they are simultaneously operated.SOLUTION: When operation levers 20 for operating any one of first and second hydraulic actuators AG1, AG2 are operated, a first change-over valve 31 is released to allow operation oil to supply from the first control valves 40 to the second control valves 50, a second change-over valve 35 is closed to restrict operation oil supply from the third control valves 60 to the second control valves 50. When operation levers 20 for operating together at least one hydraulic actuator of the first hydraulic actuators AG1 and the second hydraulic actuators AG2 are operated, a first change-over valve 31 is closed to restrict operation oil supply from the first control valves 40 to the second control valves 50, the second change-over valve 35 is released to allow the operation oil supply from the third control valves 60 to the second control valves 50.SELECTED DRAWING: Figure 3
【課題】複数の油圧アクチュエータの同時作動が行われるときに、それぞれに必要に応じた適切な油圧供給を行う。【解決手段】第１および第２油圧アクチュエータ群ＡＧ１，ＡＧ２のいずれか一方を作動させる操作レバー類２０の操作の時には、第１切換バルブ３１を開放して第１制御バルブ群４０から第２制御バルブ群５０への作動油供給を許容し、第２切換バルブ３５を閉止して第３制御バルブ群６０から第２制御バルブ群５０への作動油供給を規制し、第１油圧アクチュエータ群ＡＧ１および第２油圧アクチュエータ群ＡＧ２のそれぞれ少なくとも一つの油圧アクチュエータを一緒に作動させる操作レバー類２０の操作の時には、第１切換バルブ３１を閉止して第１制御バルブ群４０から第２制御バルブ群５０への作動油供給を規制し、第２切換バルブ３５を開放して第３制御バルブ群６０から第２制御バルブ群５０への作動油供給を許容する。【選択図】図３
PROBLEM TO BE SOLVED: To perform an appropriate hydraulic pressure supply to each of several hydraulic actuators as required when they are simultaneously operated.SOLUTION: When operation levers 20 for operating any one of first and second hydraulic actuators AG1, AG2 are operated, a first change-over valve 31 is released to allow operation oil to supply from the first control valves 40 to the second control valves 50, a second change-over valve 35 is closed to restrict operation oil supply from the third control valves 60 to the second control valves 50. When operation levers 20 for operating together at least one hydraulic actuator of the first hydraulic actuators AG1 and the second hydraulic actuators AG2 are operated, a first change-over valve 31 is closed to restrict operation oil supply from the first control valves 40 to the second control valves 50, the second change-over valve 35 is released to allow the operation oil supply from the third control valves 60 to the second control valves 50.SELECTED DRAWING: Figure 3
【課題】複数の油圧アクチュエータの同時作動が行われるときに、それぞれに必要に応じた適切な油圧供給を行う。【解決手段】第１および第２油圧アクチュエータ群ＡＧ１，ＡＧ２のいずれか一方を作動させる操作レバー類２０の操作の時には、第１切換バルブ３１を開放して第１制御バルブ群４０から第２制御バルブ群５０への作動油供給を許容し、第２切換バルブ３５を閉止して第３制御バルブ群６０から第２制御バルブ群５０への作動油供給を規制し、第１油圧アクチュエータ群ＡＧ１および第２油圧アクチュエータ群ＡＧ２のそれぞれ少なくとも一つの油圧アクチュエータを一緒に作動させる操作レバー類２０の操作の時には、第１切換バルブ３１を閉止して第１制御バルブ群４０から第２制御バルブ群５０への作動油供給を規制し、第２切換バルブ３５を開放して第３制御バルブ群６０から第２制御バルブ群５０への作動油供給を許容する。【選択図】図３
HYDRAULIC ACTUATION DEVICE
油圧作動装置
SHIMIZU KOICHI (author)
2018-07-05
Patent
Electronic Resource
Japanese