To avoid nonconformity that, when load on a crushing device increases, supply of pressurized oil to a hydraulic actuator for a discharging device decreases and discharging capability falls in a self-traveling crusher which is provided with the crushing device, a feeding device for feeding matter to be crushed to the crushing device and a discharging device for discharging the matter subjected to crushing treatment by the crushing device.
While providing a first hydraulic pump 12 used as a pressurized oil supply source of a hydraulic motor 19 for the crushing device and a second hydraulic pump 13 used as a pressurized oil supply source of a hydraulic motor 20 for a vibrating feeder and a hydraulic motor 21 for a carrying out conveyor, a definite flow rate of pressurized oil of the second hydraulic pump 13 is preferentially supplied to the hydraulic motor 21 for the carrying out conveyor via a priority valve 47.
IWASHITA MASARU
MATOBA NOBUAKI
| JPH11226444A | 1999-08-24 | |||
| JPH08299838A | 1996-11-19 | |||
| JPH0681641U | 1994-11-22 |