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HYDRAULIC SYSTEM OF WORKING MACHINE AND WORKING MACHINE
A hydraulic system of a working machine includes: a hydraulic actuator; a direction switching valve; the solenoid proportional valve; a controller to control a current to be supplied to the solenoid proportional valve; an operation member for a worker to operate the hydraulic actuator; and a permission operation actuator capable of performing a switching operation between a permission operation for permitting driving of the hydraulic actuator and a non-permission operation for not permitting the driving, in which, when the permission operation actuator is subjected to the non-permission operation and a temperature of the hydraulic fluid is lower than a predetermined temperature, the controller supplies, to the solenoid proportional valve, a first standby current of a first current value defined in a range in which a switching position of the direction switching valve is not switched.
HYDRAULIC SYSTEM OF WORKING MACHINE AND WORKING MACHINE
A hydraulic system of a working machine includes: a hydraulic actuator; a direction switching valve; the solenoid proportional valve; a controller to control a current to be supplied to the solenoid proportional valve; an operation member for a worker to operate the hydraulic actuator; and a permission operation actuator capable of performing a switching operation between a permission operation for permitting driving of the hydraulic actuator and a non-permission operation for not permitting the driving, in which, when the permission operation actuator is subjected to the non-permission operation and a temperature of the hydraulic fluid is lower than a predetermined temperature, the controller supplies, to the solenoid proportional valve, a first standby current of a first current value defined in a range in which a switching position of the direction switching valve is not switched.
HYDRAULIC SYSTEM OF WORKING MACHINE AND WORKING MACHINE
HORII HIROSHI (author) / MORI HIROYA (author)
2024-10-03
Patent
Electronic Resource
English
IPC:
E02F
Baggern
,
DREDGING
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