Combined spring sweeper of belt conveyor and cleaning method

The invention provides a combined spring sweeper of a rubber belt conveyor and a cleaning method, and relates to the technical field of auxiliary equipment of the rubber belt conveyor. The sweeper comprises a fixed cleaning plate, stand columns, an adjustable side plate, an adjusting lead screw, a tensioning cleaning plate and a tensioning pull rod, the stand columns are arranged at the two ends of the fixed cleaning plate, the adjusting lead screw is arranged at the upper ends of the stand columns and matched with the adjustable side plate, a plurality of connecting holes are formed in the adjustable side plate, and the tensioning cleaning plate is hinged to the adjustable side plate through a connecting rod. The two tightening pull rods are arranged on the two sides of the tensioning cleaning plate respectively and fixed, cleaning strip plates are arranged on the fixed cleaning plate and the tensioning cleaning plate, and each tightening pull rod comprises a spring and a pull rod. The sweeper is arranged be