Middle -size and small -size steering wheel hydraulic power unit

The utility model provides a middle -size and small -size steering wheel hydraulic power unit, relate to marine machinery technical field, including the main tank body, a power devic, a fixed base, level gauge and master control case, be equipped with draining device and air cleaner on the main tank body, be connected with power device on the fixing base, power device includes the upper portion motor, shaft coupling and hydraulic pump, be connected with an oil pipe and the 2nd oil pipe on the hydraulic pump, be equipped with the switching -over device between upper portion motor and the shaft coupling, the main tank is internal to be equipped with the oil feed chamber and to go out the oil pocket, be equipped with filter equipment between oil feed chamber and the play oil pocket, the 2nd oil pipe goes up and is connected with back flow and the 3rd oil pipe through the three -way valve, the back flow is connected with the oil feed chamber, the 3rd oil pipe is connected with the play oil pocket, it has rational