A leg locking mechanism

Abstract

The invention discloses a pile leg locking mechanism, and belongs to the field of ocean platforms. The pile leg locking mechanism comprises two locking devices which are fixed on a self-elevating platform, wherein the two locking devices are symmetrically arranged on two sides of a pile leg; each locking device comprises a locking base frame, a jack and a locking block; each jack and the corresponding locking block are respectively arranged in the corresponding locking base frame; a retractable end of each jack faces the top surface of the corresponding locking block; an inclined plane which faces a rack is arranged at the bottom of each locking base frame; and when the retractable end of each jack extends out and tightly presses the top surface of the corresponding locking block, a tooth surface of the corresponding locking block is engaged with the corresponding rack. Each jack provides a force in the vertical direction to tightly press the corresponding locking block on the inclined plane of the corresponding locking base frame, each inclined plane transforms the force in the vertical direction into a force in the horizontal direction to tightly press the corresponding locking block on the corresponding rack of the pile leg, load on the pile leg is transmitted to the self-elevating platform through the locking mechanism, and through the locking mechanism, friction between the pile leg and a lifting gear in a lifting system is reduced. The pile leg locking mechanism is simple in structure and convenient to mount.

Description

technical field [0001] The invention relates to the field of offshore platforms, in particular to a leg locking mechanism. Background technique [0002] The rack and pinion lifting system is an important device of the jack-up platform. Under the conditions of platform towing and storms, friction damage will occur between the rack on the leg and the climbing gear that matches it, and the climbing gear will gradually be damaged. Gears and racks. Therefore, a locking device is usually configured on the jack-up platform, which can lock the legs and the jack-up platform together to resist the load under platform towing and storm conditions, and reduce the rack and climbing gear. friction between. [0003] The existing locking devices include two sets of locking devices symmetrically arranged on both sides of the leg rack. The locking devices are installed on the self-elevating platform. Each set of locking devices includes a gear block, an upper jack, and a lower Jack, two hor...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of complex structure and difficult operation of the existing jack-up platform leg locking device, the embodiment of the present invention provides a leg locking mechanism

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