Belt replacement disassembly-free tensioning device based on transmission belt type batching scale

The utility model discloses a belt replacement disassembly-free tensioning device based on a belt type batching scale. The belt batching scale comprises a belt batching scale body and a tensioning device, wherein the batching scale body comprises a fixed mounting rod, a movable mounting rod, a rotating roller, a transmission roller and a driving motor; the two sets of fixed mounting rods and the two sets of movable mounting rods are arranged and are parallel to each other, the movable mounting rods are inserted into the fixed mounting rods, a rotating roller and a transmission roller are mounted between the fixed mounting rods, a driven roller is mounted between the movable mounting rods, and a transmission belt is wound around the rotating roller, the transmission roller and the driven roller. The tensioning device comprises a mounting plate, a threaded adjusting rod and an adjusting nut, the mounting plate is fixedly mounted on the fixed mounting rod, the threaded adjusting rod is mounted on the mounting pl