Particle crushing device

The utility model relates to the technical field of particle smashing, and discloses a particle smashing device which comprises a bottom plate, first supporting rods are fixedly connected to the front end and the rear end of the left side of the top of the bottom plate, and a motor is fixedly connected to the top of the front end of the first supporting rod on the front side. The output end of the motor penetrates through the first supporting rod on the front side and is fixedly connected with a first rotating rod, second gears are fixedly connected to the positions, close to the edges, of the front end and the rear end of the first rotating rod, and the rear end of the first rotating rod is rotationally connected with the top of the front end of the first supporting rod on the rear side. Particles are placed in the first smashing groove, a motor is started to be matched with a first rotating rod, a second gear, a first gear, a threaded rod and the like to enable a rolling wheel to smash the particles, the pa