| 摘要 |
<p>An apparatus 1 for connecting elongate components 6, 8 includes a pair of tong units 2, 4 for receiving and gripping respective elongate components 6, 8 and connecting the elongate components 6, 8 end-to-end. At least one of the tong units 2, 4 is adapted to rotate the gripped elongate component 6, 8 and each of the first and second tong units 2, 4 defines a central opening 10, 12 where the respective elongate component 6, 8 is gripped. The central opening 10, 12 has a substantially horizontal central axis 14 and a side access 16, 18 opening for inserting the elongate component 6, 8 into the central opening 10, 12 radially relative to the central axis 14. The tong units 2, 4 are spaced apart substantially horizontally so that the elongate components 6, 8 to be connected are inserted and gripped in the tong units 2, 4in a substantially horizontal orientation. An arrangement for controlling gripping force exerted on the elongate components 6, 8 by the tong units 2, 4 is also provided and where a tong unit includes rotary 30 and stationary parts 28 where a gripping portion 32 can grip the elongate component 6, 8 whether the rotary part 30 is rotating or at rest .</p> |
