| 摘要 |
A cleaner structure (10), composed of brush elements, for a root crop digger with drum assembly rear. On the shaft of the cleaner structure (10) has been mounted a plurality of brush elements (11). The brush elements (11) comprise a body component (11a) with a cross section substantially shaped like a circular ring, intended to be mounted on the shaft by its central aperture (15), and a plurality of pin-like members (13) projecting from the body component (11a). In order to preclude in an effective and reliable manner the freedom of the brush elements (11) to rotate about the shaft, there has been placed between the brush elements (11) on the shaft at least one spacer element (12) made of a material with a hardness substantially superior to that of the material used in the brush elements (11). The opposed end faces of the spacer element (12) have been provided with peripheral annular depressions (16) adapted to receive the substantially circular ring-shaped body components (11a) of the brush elements (11). |
