| 摘要 |
<p>A portable cutting apparatus (1) for the in situ truncation of railway rails (9) comprises a rail saw (2) having a motor (3) with a cyclic movement output member (4), a plate holder (5) adapted to carry an abrasive blade (6) and a movement transmitter (7) engaging the motor output member (4) and the plate holder (5) to set the plate holder (5) in a cyclic movement, a linkage structure (27) with a rail connector (29) and a saw connector (31) and a sawing position alternator (45) to autonomously and alternately move the plate holder (5) to and fro.</p> |
