| 摘要 |
The present new, improved rock screed bucket has a solid rectangular back plate together with a framework having a rectangular bottom and a pair of generally triangular shaped sides. The solid rectangular back plate acts as a backstop. The rectangular bottom supports a heavy duty grading screen. A mounting frame is mounted to the rear of the solid rectangular back plate through a plurality of shock absorbing spacers. The conventional arm structures and conventional hydraulic system of a conventional tractor or skid loader connect to the mounting frame. By rapidly moving the conventional arm structure and conventional hydraulic system any material in the rock screed bucket can be shaken and thus screened. In a second embodiment, a hydraulic shaker may be attached to the top of the rock screed bucket to shake the rock screed bucket. The hydraulic shaker is conventional and derives its power from the conventional hydraulic system of the tractor or skid loader.
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