The present invention consists of a lifting tool (1) for internally flanged bodies comprising: a body (8) consisting of a solid supporting structure; means (19) to ensure the rotation of a lever (10); means (10) for moving rods (9): these means consist of a lever (10) placed in rotation on the pin (19) by at least one hydraulic cylinder (14), which is connected to said lever (10) by means of a hinge (13) and to said body (8) by means of a hinge (11); means (14) for moving the lever (10); means (9) for pushing petals (5) radially outwards: these means consist of a rod (9) for each petal (5): said rods (9) are connected to the lever (10) by means of hinges (12) and to the petals (5) by means of hinges (20); means (5) to ensure the centering of the body (8) with respect to the pipe (2); to also ensure the lifting of said pipe (2) by engaging the flange (3), welded to the pipe (2): such means consist of at least three petals (5), constrained in movement by at least one sliding block (16) for each petal (5): each such sliding block (16) being slidable in a guiding slot (15) machined into the body of the petal (5); means (16) to ensure the radial movement of the petal (5) with respect to the geometric axis of the body (8); these means consist of at least one sliding block (16) for each petal (5) : each such sliding block (16) being slidable relative to the petal (5) in a guiding slot (15) machined into the body of the petal (5) itself; means (6) to ensure that during the lifting of the petals (5) the petals (5) do not leave their seat; these means consist of supports (6) able to counteract the upward force that is generated on the back of the petal (5) during the lifting operation.
INTERNALLY FLANGED BODY LIFTING TOOL
INNENFLANSCHKÖRPERHEBEWERKZEUG
OUTIL DE LEVAGE DE CORPS À BRIDE INTERNE
2025-02-12
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |