针对粮食颗粒气力输送过程中易造成破碎的问题。本文分析了输送过程中易造成粮食破碎的原因;采用单颗粒球形模型对粮食输送速度与粮食颗粒破碎之间的内在联系进行了研究;最后,基于能量理论建立了气力输送过程中小麦颗粒破碎率的数学模型。本文研究成果将为气力输送机械的研发提供理论指导。 Aiming at the problem of grain fragmentation easily caused during grain conveying. In this paper, we analyze the reasons that cause grain crushing easily during the transportation process. The single particle model is used to study the relationship between the grain conveying speed and grain crushing. Finally, based on the energy theory, the grain crushing rate Mathematical model. The research results of this paper will provide theoretical guidance for the development of pneumatic conveying machinery.