Hoisting device and method for transferring ship on to bank or in dry dock

Abstract

The invention provides a hoisting device and method for transferring a ship on to a bank or in a dry dock. The hoisting device comprises a fore poppet, a channel steel frame and a stern poppet, wherein one end of the channel steel frame is vertically connected with the fore poppet, and the other end of the channel steel frame is vertically connected with the stern poppet; positioning marker posts are vertically arranged on the side surfaces of the fore poppet and the stern poppet; an upper trolley lifting bar of a gantry crane is connected with two ends of the fore poppet or the stern poppet through hoisting wires; the upper end of a hoisting beam is connected with a lower trolley lifting bar of the gantry crane through the hoisting wires, and the lower end of the hoisting beam is connected with the fore poppet and the stern poppet through the hoisting wires. The hoisting device is simple in structure and convenient 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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