Self-driven belt power-assisted counterweight tensioning device

The utility model discloses a self-driven belt power-assisted counterweight tensioning device, and belongs to the technical field of belt conveying wheel equipment. The power assisting device comprises a motor, a power assisting wheel, a connecting plate, a fixing plate and a connecting block. The power-assisted wheel is arranged on an output shaft of the motor; the motor and the connecting block are arranged at the left end and the right end of the connecting plate respectively, a through hole used for being connected with the fixing plate is formed in the left end of the connecting plate, the connecting plate is connected with the fixing plate through screws and nuts, and the diameter of the through hole is slightly larger than that of each screw. The fixing plate is installed on the side wall of the belt conveying wheel through a bolt. According to the device, the lever principle and the gravity effect are utilized, the belt conveying wheel is assisted and tensioned through the motor and the assistance whe