| 摘要 |
<p>There is a shuttering tube and a vibrator which is eccentrically arranged at axial spacing from the top edge of the tube and transmits vibrations onto the tube via a connecting piece. The connecting piece (16) is releasably fixed on the tube (10) with a tensioning device (20, 30). This tensioning device has two elements (22, 24), which engage with the tube on a cylindrical section of the outer face by means of a friction pairing. Each element (22, 24) encloses the tube (10) in the form of half shells and has a friction coating (18) on the surface facing the tube. The tensioning device is hydraulically operated and there are hydraulic cushions (64) to act on the friction coating.</p> |
