Straw crusher

The utility model belongs to the technical field of straw smashing, and particularly relates to a straw smashing machine which comprises a straw smashing machine body, a fixing frame is fixed to one side of the straw smashing machine body, a connecting mechanism is arranged at the end of the fixing frame, and a processing box is installed in the straw smashing machine body. And a rotating shaft is rotationally arranged in the processing box through a bearing, crushing rotating blades are fixed to the outer wall of the rotating shaft, a first tooth-shaped connecting rod is fixed to the end of the rotating shaft, and the outer wall of the first tooth-shaped connecting rod is sleeved with a connecting sleeve. The first handle is pulled, the limiting pin at the bottom of the disc is driven to slide upwards at the same time, the limiting disc extrudes the first spring upwards, a machine needing to be installed is aligned to the position above the through hole, and finally the first handle is loosened, so that the