Ship stabilization crane

Abstract

The invention discloses a ship stabilization crane. The ship stabilization crane comprises a crane body, a lifting hook with a stabilization disc, folding stabilization arms and a lifting cable. The crane body is installed on a ship body, the lifting hook is connected with a main motor of the crane body through the lifting cable; the crane body self carries a stabilization device; the stabilization disc is fixedly connected to the lifting hook; the folding stabilization arms are symmetrically fixedly connected on the two sides of a crane jib in a hinged mode and controlled through hydraulic cylinders to expand and draw back; and the folding stabilization arms are connected with three lifting lugs in the circumferential direction of the outer wall of the stabilization disc of the lifting hook in the way that three additionally installed stabilization hydraulic motors and rollers are matched with corresponding steel wire cables and guiding pulleys, swinging is reduced in the way that movement of the corresponding motors is controlled to pre-tighten a stabilization rope, and traction stabilization of a stereoscopic triangle can be directly achieved through installation of equal division of circumference of the three lifting lugs. The ship stabilization crane is novel in structure, convenient to machine and use and safe and reliable and prevent a lifting tool and goods from swinging.

Description

technical field [0001] The invention relates to a ship anti-sway crane, in particular to a ship anti-sway crane with an anti-sway device. Background technique [0002] A crane refers to a multi-action hoisting machine that lifts vertically and carries heavy objects horizontally within a certain range, also known as a crane, and belongs to material handling machinery. Usually, a hoist consists of a lifting mechanism (to move the load up and down), a running mechanism (to move the hoist), a luffing mechanism and a slewing mechanism (to move the load horizontally), plus necessary metal structures, power devices, Manipulation control and necessary auxiliary devices are combined. The working characteristics of the crane are intermittent and cyclical movements. A working cycle includes: the pick-up device lifts the load from the pick-up place, then moves horizontally to the designated place to lower the load, and then performs reverse movement to make the pick-up device return to...

AI Technical Summary

Problems solved by technology

Since the steel wire rope is a flexible part, the load will perform a single pendulum movement during the luffing and slewing motion, which will increase the difficulty of the operation and the time of the working cycle

Especially for marine cranes, due to the influence of marine environmental factors such as wind, waves, and currents, the ship will produce six degrees of freedom motion of rolling, pitching, yaw, sway, surge, and heave, which is even more serious. The swing of the load is reduced, and it is almost impossible to work in bad sea conditions

For the swaying problem of the crane, the Maryland rigging mechanism and comprehensive compensation device are usually used to solve the problem, but the mechanism and control are relatively complicated

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