Study on a clamping device of leveling equipment mounted on jacket

JIANG Pei-ran¹, FANG Xiao-ming², ZHU Shao-hua², LI Huai-liang², GONG Hai-xia¹

1.College of Mechanical and Electrical Engineering,Harbin Engineering University,Harbin 150001,China;2.Offshore Oil Engineering CO.,Ltd.,CNOOC,Tianjin 300452,China



Abstract:

This paper proposes a novel clamping device for leveling equipment mounted on offshore oil platform jacket,which solves the problem of leveling equipment clamping lifting force of more than 2000 tons.The main features are that lifting force transmits to clamp claw through wedge force amplifier,embed the teeth of claw into the pile,and the embedded depth increases with the lifting force,resulting in a gravitational self-locking function.This theoretical model of clamping device was established,and the force and material characteristic were analyzed,and the feasibility of the theoretical model was verified by thin shell elastic-plastic stability theory and thin-walled structures theory.An experimental prototype of clamping device was produced to test gravity self-locking function and bearable leveling force.Compared with the theoretical model and the experimental results,it proved that the embedded clamping devices have gravitational self-locking function and can meet the need of actual leveling equipment.

Key words:  Leveling equipment  wedge force amplifier  embedded clamping device  self-locking

DOI：10.11916/j.issn.1005-9113.2011.04.009

Clc Number:TE951

Fund: