Spiral driving device and grain leveling robot

The invention relates to the technical field of mechanical automation, in particular to a spiral driving device and a grain leveling robot, the spiral driving device comprises a roller, a driving motor and a planetary gear mechanism, the driving motor is rotatably arranged in the roller, the planetary gear mechanism comprises a planet carrier, a sun gear and a gear ring, and the gear ring is rigidly connected with a shell of the driving motor; the sun gear is circumferentially fixed with a driving shaft of the driving motor, a circular groove is formed in the middle of the roller, the planet carrier is arranged in the circular groove and circumferentially fixed with the roller, planet gears are rotationally arranged on the planet carrier, and any planet gear is arranged between the gear ring and the sun gear and is respectively meshed with the gear ring and the sun gear; and a spiral blade is arranged on the outer side of the roller. The spiral driving device is sealed in the roller, materials can be prevente