| 摘要 |
A screen and rotor assembly for a grain husking, decorticating, polishing and whitening machine, and including an abrading screen supported by a screen holder, and an abrading rotor concentrically arranged within the abrading screen. The spacing between working surfaces of the abrading screen and the abrading rotor is maintained at a constant value, despite wear of the abrading surfaces thereof, by a plurality of axially extending channels in the screen holder for housing a corresponding plurality of abrading members such that the abrading members in turn support the edges of a plurality of alternate screen members located between each pair of consecutive channels, the channels being provided with a plurality of adjustable fasteners for holding the abrading members and for adjusting the radial position thereof. A pair of axially extending grooves is formed on the rotor means, each groove housing an abrading insert and being provided with adjustable fasteners for holding the inserts and for adjusting the radial position thereof, whereby regardless of wear the spacing between the abrading members and the abrading inserts can be maintained at a constant value. |
