By means of theory calculating and analyzing,increasing steel ball section and reality filling up rate(from 26% to 46%),raising tube body speed(from 26.1r/min to 37.3r/min),main bearing from sliding bearing changed ball-bearing are used.

• 通过理论计算与分析；采取了加大钢球(段)和实际充填率；由26%25增加到46%25; 提高工作转速；由26.；1r/min加快到37