| 摘要 |
A grain husking and polishing machine includes a grain treatment chamber 50 defined by an abrasive rotor mounted on a hollow rotating shaft 13 and a screen assembly 44 surrounding the rotor 45. The screen 44 is mounted on a movable annular plate 25 actuated by a sidewardly movable mechanism 62-65 capable of changing the eccentricity of the screen assembly 44 with respect to the rotor 45. This arrangement improves the versatility of the machine in that it can be adjusted to treat different types of grain as required; the adjustment can take place while the machine is running. In addition, a more efficient combined husking and polishing action is accomplished by providing the rotor with a plurality of cam-like abrasive discs 47 spaced apart by a corresponding plurality of spacer rings 79 having a diameter smaller than that of the discs so as to form grain expansion chambers therebetween, whereby an energetic husking action followed by a moderate abrading polishing action are effected along the treatment chamber. |
