The rolling technics of the big diameter sheave are introduced,the problems in rolling are analyzed,the methods for solving the problems are put forward.

• 文中提出了一种应用两根钢丝绳和一对滑轮组合的新夹丸机构 ,解决了在中药蜜丸沾蜡机工作过程中 ,夹丸机构会出现的自锁问题。