Control device for hydraulic system of fuel oiling machine

The utility model relates to a control device for a hydraulic system of a fuel oiling machine, comprising a motor, a volumetric pump, an oil-gas separator, a flow measurement converter, a control mainboard with a counter, an oil gun, a manual input system, an electric control valve, a voltage control device and a transducer. An oil tank is sequentially connected with the volumetric pump, the oil-gas separator, the electric control valve, the flow measurement converter and the oil gun; the oil tank is also sequentially connected with the flow measurement converter and the control mainboard with the counter; the output of the manual input system is connected with the input of the voltage control device; the output of the control mainboard with the counter is respectively connected with the input of the voltage control device and the input of the electric control valve; the output of the voltage control device is connected with the input of the transducer; the output of the transducer is connected with the motor; and the motor is connected with the volumetric pump. The utility model controls the rotate speed of the motor through the transducer to adjust the rotate speed of the volumetric pump, thereby enabling the oiling machine to operate in the optimum condition, improving the energy utility ratio and reducing the energy loss.