A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a navy. On the condition that a plurality of hydraulic pumps driven by an engine enables walking hydraulic motors and hydraulic actuator except for the walking hydraulic motors to simultaneously and respectively work in hydraulic manner, an engine output can be effectively used. The navy of the embodiment of the invention is provided with a first pump (14L) driven by an engine (11), a second pump (14R), a pump motor (14A) and a walking straight advancing valve (56). On the condition that walking hydraulic motors (1L, 1R) and stick cylinders (8) act at the same time, the walking straight advancing valve (56) enable the first pump (14L) to be communicated with the walking hydraulic motors (1L, 1R), the walking hydraulic motors (1L, 1R) are driven by a first working oil discharged by the first pump (14L), and the stick cylinders (8) is driven by at least a second working oil in the second working oil discharged by the second pump (14R) and a third working oil discharged by the pump motor (14A).
The invention provides a navy. On the condition that a plurality of hydraulic pumps driven by an engine enables walking hydraulic motors and hydraulic actuator except for the walking hydraulic motors to simultaneously and respectively work in hydraulic manner, an engine output can be effectively used. The navy of the embodiment of the invention is provided with a first pump (14L) driven by an engine (11), a second pump (14R), a pump motor (14A) and a walking straight advancing valve (56). On the condition that walking hydraulic motors (1L, 1R) and stick cylinders (8) act at the same time, the walking straight advancing valve (56) enable the first pump (14L) to be communicated with the walking hydraulic motors (1L, 1R), the walking hydraulic motors (1L, 1R) are driven by a first working oil discharged by the first pump (14L), and the stick cylinders (8) is driven by at least a second working oil in the second working oil discharged by the second pump (14R) and a third working oil discharged by the pump motor (14A).
Working machinery
KAWASHIMA KOJI (author)
2015-11-25
Patent
Electronic Resource
English
IPC:
E02F
Baggern
,
DREDGING
Engineering Index Backfile | 1904
| European Patent Office | 2022
Building clay working machinery
Engineering Index Backfile | 1911