| 摘要 |
<p>This hole-former broadly comprises: a unit composed of a rotatable auger vertically-depending from a motorized shaft mounted on a horizontal rotary sweep and surrounded by a close-fitting sleeve mounted on the sweep. In one embodiment, the auger projects from both ends of the sleeve. When a sweep with this one embodiment is raised during a silo filling operation, the sleeve and auger function as a cylindrical hole-forming barrier, the sleeve functions as an auger wobble-restricting guide, while the auger functions to prevent any appreciable leakage of incoming silage downwardly through the sleeve.</p> |
