Straw crushing system for agricultural machinery

The straw smashing system for the agricultural machinery comprises a shell, a supporting transverse plate is placed in the shell, a braking assembly used for power transmission is placed below the supporting transverse plate, and material lifting assemblies used for receiving materials are placed on the two sides of the braking assembly; a material receiving and crushing assembly used for conveying is placed on one side of the traction part, a dehumidification assembly used for dehumidification is placed on the upper side of the supporting transverse plate, and a compression assembly used for compression is placed on one side of the partition material receiving bin; the other end of the arc-shaped short rod is connected with the lifting plate and drives the lifting plate to ascend and descend, the lifting plate descends to drive the connecting plate to receive materials downwards, meanwhile, the discharging bin descends to the lowest state and makes contact with the ground, workers can push straw into the dev