▎ 摘　　要

NOVELTY - A micro-friction abrasion device for preparing graphene. belonging to the technical field of preparation of new carbon material. opposite two planetary gear mechanisms, two planetary gear mechanism is provided with four roller assembly, each roller assembly comprising a roller, end cover and sealing ring, and two end faces of two rotating shaft, roller are respectively fixed with a rotating shaft; two rotating axis of each roller set; each roller of two rotating shafts corresponding to two planetary gear mechanism of the planetary gear is fixed connection, one end of each roller is a sealed end, and the other end of each roller is provided with a end cover and a sealing ring; end cover and sealing ring and the roller, and the other end can be detachably sealed connection, each roller is provided with diamond fine powder and the gear ring of the planetary gear mechanism is fixed on the frame, the output shaft of the motor and the sun wheel centre of one planetary gear mechanism is fixed connection. The utility model can fast prepare the graphene nanosheet, and simple structure, environment-friendly and can be produced continuously.