Testing device for marine crane anti-oscillation and heave compensation

Abstract

The invention relates to a testing device for marine crane anti-oscillation and heave compensation. The testing device comprises a ship motion simulation platform, a crane hoisting mechanism and an anti-oscillation mechanism; the anti-oscillation mechanism comprises a pull block (8), a transverse pull rope (14), a transverse pull winch (15), a lifting rope (9) and a lifting winch (13); the pull block (8) is fixed at the lower part of the lifting rope (9) and is connected with one end of the transverse pull rope (14); the other end of the transverse pull rope (14) is wound on the transverse pull winch (15) after direction change with a fixed pulley which is fixed on the platform to be used for controlling a transverse force applied to the pull block; the lifting winch (13) of the pull blockis connected with the lifting rope (9); the lifting rope (9) is directly connected with a pull block (8) main body to be used for controlling and regulating the height of the pull block; and the lifting winch (13) of the pull block controls the lifting rope (9) through a drum to enable the lifting rope (9) to pass through a pulley at a hoisting point and a hoisting boom (11) to lift the pull block (8).

Description

technical field [0001] The invention relates to a test device for anti-shaking and heave compensation of a marine crane, which belongs to the technical field of marine cranes. The test device can simulate the movement of the ship with six degrees of freedom, monitor the movement of the marine crane in real time, focus on the inspection of the swing angle and range of the hoisted objects of the marine crane, and reduce the shaking of the cargo during the hoisting process. Compensation completes the fit. Background technique [0002] Marine hoisting equipment is a special hoisting machinery used in specific engineering links at sea. Due to the comprehensive effect of environmental loads such as sea waves, wind waves, etc., the marine crane may swing greatly during the working process, causing the suspended object to collide with the replenished ship or other devices. In the process of offshore hoisting, the damage caused by the collision of oversized and overweight cargo is ...

AI Technical Summary

Problems solved by technology

[0005] 1. Domestic and foreign marine crane land test devices are mainly used for related research on active wave compensation, discussing the influence of different wave compensation methods on the swing of suspended objects, and the function is relatively single

In practice, there are many factors and methods that affect the swing of hanging objects, and it is impossible to use a unified test device for testing

[0006] 2 The current active heave compensation system test device can only simulate three degrees of freedom when simulating ship motion, which is far from the real sea state, and the reliability of the test data is insufficient

[0008] There are domestic test devices, such as a research on hydraulic drive for active heave compensation cranes (Patent No.: CN200910226788), active heave compensation control system and control method (Patent No.: CN201210219968), active heave compensation test device ( Patent No.: CN201510083754), etc., only studied the test device of the active heave compensation system, and can only simulate three degrees of freedom of ship motion

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