To prevent main working devices and auxiliary working devices from being influenced by large load on a crushing device and to prevent working efficiency of the main working devices from falling even when load on any working device increases, in a self-traveling crusher which is provided with the crushing device, main working devices such as a feeding device and a carrying out device mounted in advance on a machine body and auxiliary working devices such as an externally attached optional device.
While providing a first hydraulic pump 12 used as a pressurized oil supply source of a hydraulic motor 22 for the crushing device and a second hydraulic pump 13 used as a pressurized oil supply source of hydraulic motors 23 to 26 for main working devices and hydraulic motors 27 to 29 for auxiliary working devices, pressurized oil of the second hydraulic pump 13 is preferentially supplied to the hydraulic motors 23 to 26 for main working devices via a priority valve 59.
IWASHITA MASARU
MATOBA NOBUAKI
| JP2003159546A | 2003-06-03 | |||
| JPH073726U | 1995-01-20 | |||
| JPH0681641U | 1994-11-22 | |||
| JP2002239409A | 2002-08-27 | |||
| JPH08299838A | 1996-11-19 |