Navigation mark recycling and hoisting device and method

Abstract

The navigation mark recycling and hoisting device comprises a bracket, a clamping arm, a hoisting portal, a portal turnover mechanism and a bracket lifting turnover mechanism, the hoisting portal comprises a stand column, a base, an annular track and a crane, the bottom of the stand column is hinged to the base, the annular track is arranged at the top of the stand column, and the crane moves along the annular track; the gantry turnover mechanism is installed on the base, the ends of telescopic rods are connected with the stand columns, the bracket lifting turnover mechanism comprises a connecting cross beam, telescopic guide rails, a lifting oil cylinder and a bracket turnover oil cylinder, the telescopic guide rails are symmetrically arranged on the ship body, the bottom of a bracket is hinged to the connecting cross beam, and the two ends of the connecting cross beam are connected with inner sleeves of the telescopic guide rails; the lifting oil cylinder is fixed to the outer sleeve, the end of the telescopic rod is connected with the inner sleeve, the bracket overturning oil cylinder is fixed to the connecting cross beam, and the end of the telescopic rod is connected with the bottom of the bracket. The problems of automatic recovery and lifting water outlet hoisting of the navigation mark are solved, and fall-free hooking or maintenance operation on the navigation mark on a deck is achieved.

Description

technical field [0001] The invention belongs to the technical field of floating body recovery, and in particular relates to a hoisting device and method for recovering a navigation mark. Background technique [0002] During the buoy recovery operation, personnel usually need to use a rope to trap the buoy or hook the buoy with a long hook on the side of the open deck without guardrails. For large-diameter buoys, sometimes it is even necessary for personnel to jump directly on the buoy or approach it through a small boat. After boarding the buoy, fasten the hook to the buoy, and finally use the crane to lift the buoy onto the ship. When the sea state is high, these operating methods have problems such as high difficulty in personnel operation, low degree of mechanization, long operation time, and high risk factor. In order to solve these problems, although some new navigation mark recovery devices have been developed in various places in recent years, such as L-shaped arm pl...

AI Technical Summary

Problems solved by technology

When the sea conditions are high, these operating methods have problems such as difficult operation by personnel, low degree of mechanization, long operation time, and high risk factor.

In order to solve these problems, although some new navigation mark recovery devices have been developed in various places in recent years, such as L-shaped arm plus bracket recovery device, navigation mark catching fork device and clamping magnetic attraction device, etc., the L-shaped arm plus bracket recovery device The bracket needs to move up and down along the channel steel guide rail under the control of the winch. Not only is the operation process complicated, but also the length of the fixed guide rail is affected by the depth of the ship and the curvature of the outer plate. It cannot be installed and used for the navigation mark ship with a small depth. Going deep underwater will increase the driving resistance of the ship, which will lead to a decrease in the speed of the ship. Moreover, if it is soaked in water for a long time, it will easily cause the bracket to slip and get stuck in the guide rail after being attached to sea creatures, and it will be difficult to maintain, and it will not be possible to realize the automatic hooking of navigation marks and lifting

The navigation mark catching fork device is generally installed on the bow of the ship, which is only suitable for low sea conditions. It occupies a larger deck area during storage, and cannot realize the automatic hooking and lifting of the navigation mark

The installation position of the clamping magnetic device can adapt to high sea conditions and can automatically capture the buoy, but it still cannot realize the automatic hooking and lifting of the buoy

Therefore, the current existing buoy recovery devices have their own advantages and disadvantages, but the common problem is that the automatic hooking and lifting of the buoy has not been realized. The work is still dangerous

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