| 摘要 |
<p>The bolted coupling is for an underground coal cutter frame of channel sections. It has hooks engaging behind the frame flanges, with distance bolts secured to them and fastening adjacent frames together. The claws (2) and the ends of the bolts each have a bore (8, 9) accommodating a fixing screw (11). In the section of each claw, furthest from the frame (1), is a curved elongated hole (12) accommodating a further fixing screw (14) at the bolt end. The claws and the bolts (10) have teeth (15) in their faces meshing with each other.</p> |
