| 摘要 |
A clamping device (1) for internally centring pipes with respect to one another comprises two clamping heads (5, 6) which can be placed into the mutually facing ends of the pipes. The clamping heads each have radially displaceable clamping shoes (7) which are evenly distributed over its external periphery and a drive mechanism (8) for causing the radial displacements of said clamping shoes (7). Furthermore, adjusting means (14) are provided for adjusting the mutual positions of the clamping heads (5, 6) in the axial direction and a guide means (11) for guiding the clamping heads in the axial direction with respect to one another. Bearings (13) are provided on at least one (5) of the clamping heads and on said guide means (11). The guide means (11) has several guide bodies (12) wherein the guide bodies (12) are positioned in an eccentric manner in connection with the stability of the clamping heads. |
