通过对《9D—600型》干打浆机两轮样机的试制和生产考核以及参数正交试验分析的结果,本文集中论述了两个问题。关于物料的加工质量问题,具体讨论了筒腔结构、主轴转速和气流速度等参数的影响;关于刀杆轴的设计和经济性问题,通过建立计算简图、强度设计和制造成本的经济分析,可以认为刀杆轴分段设计成短轴的方案是可行的。 Through the trial production and production evaluation of the “9D-600” dry beater two round prototype and the results of orthogonal test, the paper focuses on two problems. With regard to the quality of material processing, the effects of parameters such as barrel structure, spindle speed and air flow velocity are discussed in detail. With regard to the design and economic problems of the arbor, by establishing the economic analysis of the calculation diagram, strength design and manufacturing cost, It is considered feasible to design the cutter bar shaft as a short shaft.