Particle collecting device

The utility model relates to the field of veterinary drug production, and discloses a particle collecting device which comprises a bottom frame, protective side plates, a collecting cover and a conveying belt body, sliding grooves are formed in the two sides of the bottom of the bottom frame through bolts, T-shaped sliding blocks are arranged in the sliding grooves in a sliding mode, and the collecting cover is arranged at the bottoms of the T-shaped sliding blocks through screws. Protection side plates are welded to the two sides of the top of the bottom frame, servo motors are installed on the two sides of the ends of the protection side plates through installation bases, output shafts of the servo motors are connected with lead screws through couplings, the lead screws are sleeved with screw blocks, a conveying belt body is arranged between the protection side plates, and installation end plates are welded to the two ends of each protection side plate. A driving shaft and a driven shaft of the conveying be