| 摘要 |
<p>A mobile rail grinding machine for grinding the running surface and inside of the railhead of the track rails comprises a forward, an intermediate and a rear grinding module spacedly arranged in an operating direction. The forward and rear modules each includes a carrier associated with each running surface half of each rail, a power drive for vertically moving the carriers, and two grinding wheels spaced on each carrier in the operating direction, each of the wheels having a circumferential grinding surface for grinding the associated running surface half. Flanged wheels guide each grinding module along the track rails. The intermediate grinding module has a carrier associated with each track rail, a power drive for moving the carriers parallel with respect to the track, and at least one grinding wheel on each carrier associated with the inside of the railhead of the associated rail for grinding the associated inside. Shaping tools are mounted on the carriers for profiling the grinding surfaces of the grinding wheels. At least the forward and rear modules are centered with respect to the track rails and their flanged wheels are pressed without play against the track rails they engage.</p> |
