Fish underwater propulsor is imitated to velocity of flow self -adaptation

The utility model belongs to biomimetic mechanical designs field, concretely relates to fish underwater propulsor is imitated to velocity of flow self -adaptation. Including casing, group battery, control module, afterbody and drive arrangement, drive arrangement includes motor, motor mounting panel, base, supporting shoe, connection of after section pole, guide rail, rail slider, action wheel, follows driving wheel and transfer line, characterized by still includes velocity of flow sensor, steering wheel, lead screw, poker rod, shift fork and drive wheel. The during operation detects the water velocity around the imitative fish underwater propulsor through velocity of flow sensor to give control module through the wire with velocity of flow data transfer, control module rotates according to velocity of flow data control steering engine, makes the amplitude of fluctuation and the swing frequency of connection of after section pole concur the change. The utility model discloses can reduce the resistance that i