| 摘要 |
<p>A rail tamper apparatus is provided, including a chassis configured for being hitched to a semi-tractor trailer for road travel, and also configured for travel on rails of a railroad track, at least one ballast tamping unit mounted to the chassis, a turntable unit mounted to the chassis, and a pivoting axle assembly mounted to the chassis that is retractable relative to the chassis in a road travel position for highway travel, and is extendable from the chassis into a track travel position for operation on the rails, and including a rail wheel drive motor being extendable with the axle assembly.</p> |
