Crushed stone replacement vehicle and roadbed replacement device

Abstract

To efficiently recover old crushed stones and scatter new crushed stones.SOLUTION: A crushed stone replacing work vehicle comprises: a replacing work vehicle body 11 running on a rail of a railway; a backhoe 12 mounted on the replacing work vehicle body 11 and excavating a track bed by a bucket 12b to scoop up old crushed stone; an under-cutter mechanism part 13 having an under-cutter 13a detachably provided on both right and left sides of the replacing work vehicle body 11 and scraping out old crushed stone under a sleeper; an old crushed stone conveyor mechanism part 14 provided in the center of the replacing work vehicle body 11 for moving the old crushed stone scraped out by the under-cutter mechanism part 13 and scooped up by the bucket 12b of the backhoe 12 toward an old crushed stone recovery vehicle; and a conveyor mechanism part 15 for new crushed stones which is detachably provided on the other side opposite to the under-cutter mechanism part 13 out of both right and left sides of the replacing work vehicle body 11, receives unused new crushed stones, and carries the new crushed stones to a new crushed stone scattering part 15b of the new crushed stones.SELECTED DRAWING: Figure 3

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