Modified asphalt stability maintaining device

The invention discloses a modified asphalt stability maintaining device which comprises a fixed cavity, an embedded notch is formed in the side face of the fixed cavity, the bottom end of the fixed cavity is sleeved with a fixed sleeve in a communicating mode, the top end of the embedded notch is sleeved with a feeding square pipe in a communicating mode, and a fixed rotating opening is formed in the side face of the fixed cavity. And a fixed material leakage groove is formed in one side of the bottom end face of the fixed cavity. By arranging a linkage mechanism, a synchronizing mechanism and a driving motor, the driving motor is turned on, then the driving motor drives a driving rotating shaft to rotate until a first rotating rod and a second rotating rod revolve around the fixed disc under the action of the fixed disc, and meanwhile, the first rotating rod and the second rotating rod are driven to rotate through a first reverse rotating side tooth and a second reverse rotating side tooth. The fixed gear ro