Road roller oscillation starting device controlled by electromagnetic clutch

The utility model discloses a road roller oscillation starting device controlled by an electromagnetic clutch. A power drive mechanism comprises a drive pump, a transmission shaft, the electromagnetic clutch and a drive belt pulley, wherein the drive belt pulley is arranged on the electromagnetic clutch and opposite to an end cover of the clutch; an eccentric oscillation starting mechanism comprises an eccentric oscillation starting shaft and a driven belt pulley; the axle body of the eccentric oscillation starting shaft is cylindrical; a slide chute parallel to the axial direction is arranged inside the axle body; a notch of the slide chute is arranged in the circumference on one side of the axle body; an eccentric slide block is arranged inside the slide chute; the bottom end of the eccentric slide block is connected with the bottom of the slide chute through an extension spring; the gravity center of the eccentric oscillation starting shaft composed of the eccentric slide block and the axle body is arrange