| 摘要 |
An ejector mechanism (20) adapted for use on a dredging apparatus (10) to remove silt from under the surface of a body of water and associated method, the dredging apparatus being operative in a forward and reverse direction and including first (32) and second (34) excavating wheel assemblies each having a plurality of silt retaining chambers (40) associated respectively therewith, the ejector mechanism urging the silt material from the respective chambers as the wheel assemblies rotate during a dredging operation and including a crankshaft member (56) rotatably mounted to the wheel frame assembly (24, 62, 64) and having first (58) and second (60) eccentric arm portions associated therewith, the crankshaft member (56) being operatively coupled to the first (32) and second (34) wheel assemblies for rotation in proportion to the rotation of the wheel assemblies, the crankshaft member (56) being rotatable in both a clockwise and counterclockwise direction based upon the direction of movement of the dredging apparatus (10), and first (70) and second (72) ejector members coupled to the first (58) and second (60) eccentric arm portions, the eccentric arm portions being oriented such that the ejector members (70, 72) will move into each of the silt retaining chambers (40) associated with both wheel assemblies (32, 34) during one revolution of the wheel assemblies (32, 34).
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