▎ 摘　　要

NOVELTY - The utility model claims a graphene lubricating oil grading filter device, comprising a filter box, the upper outer wall of the filter box is fixedly connected with the top cover through the first hinge, and the upper side wall of the top cover is provided with a feeding port; the inner part of the feeding port is embedded with a feeding disc; and the front side outer wall of the filter box is provided with an observation groove; and the inner part of the observation groove is embedded with a glass plate; the right outer wall of the filter box is embedded with a stage liquid outlet pipe; and the lower part of the first stage liquid outlet pipe is embedded with a second stage liquid outlet pipe; the lower part of the second stage liquid outlet pipe is embedded with a third stage liquid outlet pipe; and the lower part of the three-stage liquid outlet pipe is embedded with a four-stage liquid outlet pipe; the outer wall of the tail end of the feeding plate is sleeved with a feeding pipe. The utility model is provided with a series of structure solves the existing graphene lubricating oil filtering device when using, it only can filter the large particles in the graphene lubricating oil when using, so as to generate serious filtering is not sufficient, the limitation is large.