本研究利用自行设计的秸秆粉碎试验台,在直式动刀和切碎式定刀组合下,以壳体包角、刀辊转速及动定刀间隙为3个试验因素,以粉碎质量、粉碎功耗为试验指标,对小麦秸秆进行了粉碎试验,建立了粉碎质量和粉碎功耗的数学模型,分析了粉碎装置结构、运动参数对粉碎质量及粉碎功耗的影响规律,优化确定了粉碎装置的最佳结构和运动参数,为秸秆还田机参数选择提供了依据。 In this study, a self-designed straw crushing test bench was used. Under the combination of a straight knife and a chopper fixed knife, the shell angle, the speed of the knife roll and the fixed knife gap were taken as three experimental factors, Power consumption as the test index, the wheat straw was smashed, and the mathematical model of the grinding quality and the power consumption of the grinding was established. The influence of the structure and movement parameters of the grinding device on the grinding quality and grinding power consumption was analyzed. The best structure and movement parameters of straw returning machine provide the basis for parameter selection.