The internal shape of planetary ball mill jars was modified to increase the efficiency of the milling process. Four new jar designs are presented, where obstacles on the surface of a traditional cylindrical jar modify the ratio of normal-to-tangential transferred mechanical action, thus improving the comminution of the mill charge and reducing the process time. Multibody dynamics simulations, validated by operando video recordings of the process, were employed to investigate modified ball motion regimes promoting the increase of the number of high-energy impacts. Moreover, experimental grinding of calcium fluoride powder was performed to assess the effect of milling time and jar-to-plate velocity ratio, through the evaluation of size and microstrain of the end product deduced from X-ray diffraction line profile analysis.

修改了行星式球磨机罐的内部形状，以提高研磨过程的效率。提出了四种新的震击器设计，其中传统圆柱震击器表面上的障碍物改变了法向与切向传递的机械作用的比率，从而改善了磨粉机的粉碎程度并减少了处理时间。多体动力学模拟，以验证operando该过程的视频录像被用于研究改进的球运动机制，以促进高能冲击次数的增加。此外，通过评估由X射线衍射线轮廓分析得出的最终产品的尺寸和微应变，对氟化钙粉末进行了实验研磨，以评估研磨时间和罐对板速度比的影响。