| 摘要 |
A work machine, comprising a load sensing system to control the discharge pressure of a hydraulic pump (P1) so that the differential pressure, which is obtained by subtracting the maximum load pressure of a plurality of hydraulic actuators (C2 to C5) from the discharge pressure of the hydraulic pump (P1), is a constant pressure, is provided with a first load pressure flow channel (77) to import the load pressure of the hydraulic actuators (C2 to C5) when starting the hydraulic actuators (C2 to C5) and output to a PLS transfer line (44) that transfers the maximum load pressure of the hydraulic actuators (C2 to C5), and a second load pressure flow channel (78) that is a flow route to import the hydraulic actuator (C2 to C5) load pressure during operations after starting the hydraulic actuators (C2 to C5) and output to the PLS transfer line (44) and for which the flow rate of the hydraulics is reduced to less than the first load pressure flow channel (77). |
