Importance

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Abstract

The coiled tubing handling apparatus includes a base and a frame. First and second pairs of plate members are coupled to the frame. A drive sprocket and an idler sprocket are coupled to the first pair of plate members for supporting a first continuous gripper chain with gripper members for movement along a first path. A drive sprocket and an idler sprocket are coupled to the second pair of plate members for supporting a second continuous chain with gripper members for movement along a second path. A drive system is provided for moving the gripper chains together along the two paths for gripping and moving a tube. Two pairs of idler sprockets are coupled to each of the first and second pairs of plate members for supporting a linear bearing chain within each of the two gripper chains. A linear bearing race engages each linear bearing chain for causing the two linear bearing chains to engage the two gripper chains respectively for causing the two gripper chains to move linearly along the first and second paths. A unique slack adjusting means is provided for each of the linear bearing chains and a unique slack adjuster is provided for each of the gripper chains. The base includes structure which allows one pair-of plate members to be moved laterally relative to the other pair of plate members and also which allows both pairs of plate members to be moved laterally relative to the frame.

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First Claim