| 摘要 |
<p>A roller assembly (7) for a harvesting machine (1) which comprises two rollers (12, 13) mounted to two respective frames (10, 11) for rotation about their longitudinal axes. The rollers (12, 13) are driven by a belt arrangement (16) and the rollers (12, 13) are spaced at an axial distance (X) providing a longitudinal space therebetween through which harvested material passes. One frame (10) is moveable with respect to the other frame (11) for adjustment of the axial distance (X) and a minimum axial distance is set by adjustable spacing means (33). The belt arrangement (16) is based towards keeping the rollers (12, 13) at the minimum axial distance (X) whilst permitting movement of one frame (10) to increase the axial distance (X) should a foreign body or high volume harvest pass through the longitudinal space.</p> |
