| 摘要 |
A mixer drum driving device provided with a hydraulic motor that drives the rotation of a mixer drum, a first hydraulic pump that is driven by an engine and is capable of supplying hydraulic oil to the hydraulic motor, an electric motor, a power source connected to the electric motor, a second hydraulic pump capable of supplying hydraulic oil to the hydraulic motor by means of the drive force of the electric motor, and a flow dividing valve that divides the hydraulic oil discharged from the first hydraulic pump into flows that are respectively supplied to the hydraulic motor and the second hydraulic pump, wherein the second hydraulic pump is configured so as to drive the rotation of the electric motor by means of the hydraulic oil, and the electric motor is configured so as to generate power and charge the power source when rotationally driven by the second hydraulic pump. |
