▎ 摘　　要

NOVELTY - The system has a fixing seat (201) that is fixedly installed on the mounting hole, and a second propeller and a third motor for driving the second propeller to rotate are fixedly installed on the fixing seat. The bottom of the fixing seat is provided with a circular through hole. The circular through hole is in communication with the arc-shaped through groove. A brush mechanism is installed on the circular through hole of the fixing seat. The brush mechanism includes a graphene conductive rod, a spring, and a mounting seat. One end of the graphene conductive rod is fixedly installed on the mounting seat. One end of the spring is fixedly connected to the bottom of the mounting seat. A brush diverter is arranged in a fuselage (101). The edge of the brush diverter is attached to the end of the graphene conductive rod that extends into the interior of the fuselage. USE - Underwater robot system based on graphene brush power supply in marine environment investigation, submarine salvage exploration, installation and maintenance of marine structure, water conservancy and hydropower engineering and scientific investigation fields. ADVANTAGE - The wear rate is reduced. The operation is stable. The power supply in the fuselage is need to install. The weight and volume of the robot are greatly reduced. The endurance is improved. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of the underwater robot system based on graphene brush power supply. Fuselage (101) First driving mechanism (102) Second driving mechanism (103) Circular tooth ring (106) Fixing seat (201)