Rape seed breeding and screening device

The utility model discloses a screening device for rape seed breeding, which relates to the field of seed processing and comprises a material collecting barrel, a primary screening frame movably inserted above the material collecting barrel, and a secondary screening mesh bag positioned in an inner cavity of the material collecting barrel, and a positioning rotating shaft is arranged in the center of the surface of the secondary screening mesh bag. The top of the positioning rotating shaft is sleeved with an extending scraping rod for increasing the flowing speed of the rape seeds on the surface of the second-stage screening net bag. And the extension rotating rod is fixedly arranged on the outer surface of the positioning rotating shaft in a sleeving manner. A large amount of materials can be stirred and flow, the screening and falling speed of rape seeds located on the surface of the screening mechanism is increased, meanwhile, the phenomenon that the rape seeds are blocked in hole grooves in the surface of