A locking mechanism and locking method of a marine crane slewing device

Abstract

The invention relates to the field of marine engineering cranes, and particularly relates to a locking mechanism and a locking method of a rotary device of a marine crane. The locking mechanism comprises a locking device and a control device, wherein the locking device and the control device are connected by virtue of a brake cable; the locking device comprises a fixed base, a locking pin and a guide pin, a long hole is formed in the side wall of the fixed base relatively, a round hole is formed in the side wall of the locking pin relatively, the guide pin passes through the long hole of the fixed base and the round hole of the locking pin, and the locking pin can be movably installed in the fixed base; the control device comprises a servo motor which is arranged on a rotary table, both ends of the brake cable are respectively connected with the servo motor and an ear plate hole, and the locking pin can be driven to move up and down by the servo motor through the brake cable so as to lock the rotary table. The control device further comprises a handle which is arranged in a cab, so that locking can be realized in an abnormal power supply condition, the stability and the reliabilityof the marine crane in a non-operating state are effectively guaranteed, the safety of mechanical equipment and working personnel is guaranteed, and the working personnel can simply and convenientlyoperate the locking mechanism to lock.

Description

technical field [0001] The invention relates to the field of marine engineering cranes, in particular to a locking mechanism and a locking method for a slewing device of a marine crane. Background technique [0002] Offshore cranes are mainly cranes used on offshore platforms. They are equipment for loading and unloading goods on offshore platforms and hoisting personnel to platforms. They are one of the most important production and safety equipment in offshore oil production. They are important for safety and reliability. , maintainability, wind resistance and corrosion resistance have high requirements. [0003] Offshore cranes are usually pedestal cranes installed on offshore platforms or engineering ships. The settings include bases, rotatable turntable structures, truss booms, cabs, power rooms, and wire rope luffing and lifting mechanisms. The marine crane is fixed on the ship platform, and the movement of the platform itself will have a strong impact on the movement...

AI Technical Summary

Problems solved by technology

Although the locking device of this patent uses rack and pinion transmission to convert the rotary motion into the up and down motion of the locking pin, the locking is relatively labor-saving, but it still requires the staff to come to the side of the locking device to operate the locking, and the locking device cannot determine whether the locking pin is Align the lock hole on the base, the locking pin often hits the lock hole, which may cause the lock to fail and the locking device to be damaged

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