| 摘要 |
A chip plow conveyor for conveying abrasive scrap includes an elongated trough having a flat bottom and sides, and a chip-motivating pusher bar. The pusher bar moves longitudinally and floats laterally as the pusher bar reciprocates to move scrap along the trough. Lateral floating of the pusher bar helps overcome binding caused by scrap material wedging between the pusher bar and one of the sides, but wedging still causes the pusher bar to engage the sides with substantial force. The pusher bar includes a bearing component with beveled front corners on a leading end of the pusher bar, with the inclined ramps providing angled engagement with the sides and characteristically providing a longitudinally-angled corner surface arrangement that cannot be sharpened into a knife-simulating edge even after substantial wear against the flat bottom and the sides of the trough.
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