A hoisting device and method for moving a ship to the shore or in a dry dock

Abstract

The invention provides a hoisting device and method for moving a ship to the shore or in a dry dock. The hoisting device includes a bow bracket, a channel steel frame and a stern bracket, and one end of the channel steel frame is connected to the The bow bracket is vertically connected, the other end of the channel steel frame is vertically connected with the stern bracket, and the sides of the bow bracket and the stern bracket are respectively vertically provided with positioning benchmarks; The hoisting steel cable is connected to both ends of the bow bracket or the stern bracket; the upper end of the hanging beam is connected to the hanging row of the trolley under the gantry crane through the hoisting steel cable, and the lower end of the lifting beam is connected to the lower end of the lifting beam through the lifting steel cable. The cables are connected to the stern bracket or the bow bracket. The device of the invention is not only simple in structure, but also easy to operate.

Description

technical field [0001] The invention relates to the field of shipbuilding, in particular to a device and a process method for moving a ship from the water surface to the shore or in a dry dock by using a gantry crane. Background technique [0002] When a ship is repaired, refitted, or needs to perform some special operations, it is generally necessary to move it from the water surface to the shore, dry dock or floating dock, and the ship is moved to the shore (also known as the upper row of the ship) generally using floating docks, etc. Facility operations, that is, laying rails on the lifting deck of the floating dock, placing trolleys and beams on the rails, connecting the front and rear trolleys into a whole, and placing pier wood on the beams of the trolleys that is consistent with the line shape of the hull. These preparations are completed Finally, tow the floating dock to the sinkhole of the harbor basin and sink to a certain depth, drag the upper row of ships to the ...

AI Technical Summary

Problems solved by technology

[0003] Obviously, there are some shortcomings no matter whether the floating dock is used to row the ship or dock the dock: (1) The requirements for the hardware facilities of the shipyard are relatively high, and there must be a dry dock, or a floating dock and its supporting facilities. Wharf rails, winches and other facilities

(2) The floating dock operation has certain requirements on the water depth of the harbor basin. If necessary, it needs to wait for the high tide. The operation also involves dock towing, anchoring, sinking and floating, etc. The operation cycle is long and the cost is high.

(3) Once entering the dry dock, it is necessary to fill the dock with water and pump water once, and it is necessary to take into account the time nodes of entering and leaving the dock for other ships under construction in the dock. The operation cycle is long and the cost is high

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