WORKING MACHINE CONTROL SYSTEM

摘要

A working machine control system includes: a split-flow fluid pressure pump configured to discharge a working fluid from a first discharge port and a second discharge port; a communication switching valve configured to be switched by a switch signal when any one of a first operation valve and a second operation valve is switched so as to allow a first neutral passage and a second neutral passage to communicate with each other; a neutral cut valve configured to be switched by the switch signal so as to block communication between a tank and one of the first neutral passage and the second neutral passage for the first operation valve or the second operation valve that is not switched; and a discharge flow rate adjusting device configured to adjust the fluid pressure pump so as to reduce a discharge flow rate thereof when the switch signal is inputted from any one of the first operation valve and the second operation valve.

主权项

1. A working machine control system configured to control a working machine including a first actuator and a second actuator, the working machine control system comprising:
a split-flow fluid pressure pump configured to discharge a working fluid from a first discharge port and a second discharge port; a first circuit system to which the working fluid discharged from the first discharge port is supplied, the first circuit system including a first operation valve and a first neutral passage, the first operation valve being configured to control the first actuator, the first neutral passage allowing the first discharge port to communicate with a tank in a state where the first operation valve is placed at a normal position; a second circuit system to which the working fluid discharged from the second discharge port is supplied, the second circuit system including a second operation valve and a second neutral passage, the second operation valve being configured to control the second actuator, the second neutral passage allowing the second discharge port to communicate with the tank in a state where the second operation valve is placed at a normal position; a communication switching valve configured to be switched by a switch signal when any one of the first operation valve and the second operation valve is switched so as to allow the first neutral passage and the second neutral passage to communicate with each other; a neutral cut valve provided in at least one of the first circuit system and the second circuit system, the neutral cut valve being configured to be switched by the switch signal so as to block communication between the tank and one of the first neutral passage and the second neutral passage for the other of the first operation valve and the second operation valve that is not switched; and a discharge flow rate adjusting device configured to adjust the fluid pressure pump so as to reduce a discharge flow rate of the fluid pressure pump in a case where the switch signal is inputted from any one of the first operation valve and the second operation valve.