| 摘要 |
A conveyor apparatus (2), so-called injector head, for feeding e.g. continuous tubing (7) or coiled tubing through the conveyor apparatus (2), to and from a wellhead and a well below and related to use of well tools. A pair of oppositely located, co-operatively movable, segmented continuous belts (28; 29) are in the apparatus, each belt comprising a plurality of interconnected gripper shoe carriers (30) carried and movable by means of a pair of continuous belt drive chains (31; 32), wherein a rear side (30″) of the carrier (30) has at least one roller (35) configured to roll about a shaft (36) attached to the carrier (30) against an elongate counter-force member (37) associated with an apparatus frame (21) and extending between said drive sprockets (33; 34), and wherein a gripper shoe (38; 52) to engage and feed the tubing is located at a front side of each carrier (30), The shaft (36) of the at least one roller (35) is resiliently supported transversely of its longitudinal axis by means of a plurality of resilient members (48) fitted in the rear side (30″) of the carrier (30) to lie about the shaft (36) at spaced apart locations. |
