Pipe bundle extracting/inserting device
AssigneeN.V. Machinefabriek Stork-Jaffa
InventorBarend van der Woerd
Life of this patent
Estimating the term…
Abstract
For withdrawing a bundle of pipes from a heat exchanger and for inserting such bundle the required tractive forces should be exerted on the bundle in a direction in line therewith by means of a key. In order to engage the pipe bundle at its front end and to firmly grip it in a manner that hanging through of the pipes is restricted to an admissible value, the gripper comprises a clamp having at least two clamping jaws adapted to engage the outer circumference of a front flange of the bundle of pipes.
Claims6
A pipe bundle extracting/inserting device comprising a gripper capable of engaging a bundle of pipes and pulling means coupled with said gripper for moving said gripper along a predetermined axis, the gripper comprising a clamp having at least two clamping jaws adapted to engage the outer circumference of a front flange of the bundle of pipes and means rotatably mounting said clamp for rotation about said axis, said clamp including support means and a pair of levers pivotally engaged between their ends by said support means, said levers being engaged by said support means considerably closer to one end thereof than to the opposite end thereof, a clamping jaw at said one end of each lever, and a jack reacting between said opposite ends of said levers.
An extractor/inserter for pipe bundles comprising, in combination:
- a main frame including an elongate longitudinal rail;
- a gripper carrier suspended from said rail and movable back and forth therealong;
- a gripper frame rotatably mounted on said gripper carrier about an axis parallel to said rail and projecting forwardly from said gripper carrier;
- a clamp assembly at the forward end of said gripper frame for clampingly engaging a header plate to which a pipe bundle is attached;
- and
- means for moving said gripper carrier back and forth along said rail to extract and insert a pipe bundle.
Dependencies are inferred from the claim text.