| 摘要 |
<p>The appts. is used in a mine for suspending and moving a pipe lead for pneumatic backfilling. The pipe is held in flat and sloping mounting positions on cantilevered caps of hydraulic striding support frames, using chains and hydraulic cylinders. Use is made of guiding rails (6) attached at intervals and parallel to their length on the caps (5). These contain a displaceably mounted guiding shoe (7) engaged by a movement cylinder (8) supported on the cap and by the chain (16) of a thrust cylinder (18) lying on the pipe duct (20).</p> |
