Method for hoisting and launching large barges based on double gantry cranes of different tonnages
A technology of gantry cranes and barges, applied in transportation and packaging, load hanging components, cranes, etc., can solve the problem of high cost of hoisting and launching, and achieve the effect of reducing costs
Active Publication Date: 2021-11-30
JIANGSU HAITONG OFFSHORE ENG EQUIP
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a method for hoisting and launching large barges based on double gantry cranes of different tonnages, which can solve the problem of borrowing a gantry crane of a certain tonnage or changing the position of the lifting lugs on the barge when hoisting and launching large barges in the prior art , The problem of high cost of hoisting and launching
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[0051] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The following examples can enable those skilled in the art to understand the present invention more comprehensively, but the present invention is not limited to the scope of the described examples.
[0052] like figure 1 As shown, eight lifting lugs are fixed on the deck of the large barge, and two symmetrical lifting lugs are respectively set on the left and starboard sides of the bow of the barge, which are EP3P, EP4P, EP3S, and EP4S lifting lugs, which are 2 groups The lifting points and the longitudinal span of the lifting lugs are both 13.2 meters. There are two symmetrical lifting lugs on the left and starboard sides of the stern of the barge respectively, which are EP1P, EP2P, EP1S, and EP2S lifting lugs, which are two sets of lifting...
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The invention discloses a hoisting and launching method for a large barge, which relates to the technical field of ship launching. It specifically includes the following steps: the gantry crane spans over the harbor basin; the barge is closed near the harbor basin; the rated load of the existing gantry crane is compared with the total weight of the barge, and if the rated load of at least one gantry crane is greater than the total weight of the barge*n, Use a single gantry crane for hoisting, and judge whether the inclination angle of the steel rope of the lifting unit exceeds the limit allowable value. If it does not exceed the limit, a single gantry crane can hoist the barge into the water. If it exceeds the limit allowable value, or the rated load of any one of the gantry cranes The total weight * n, but the total rated load of the two gantry cranes > the total weight of the barge * n, then use two gantry cranes to coordinate the lifting operation. The advantage of the present invention is that: under the condition that the unloading lugs of the barge have been determined and there is no additional addition or replacement of the lifting lugs, two existing gantry cranes can be used to cooperate to carry out the lifting operation, reducing the cost of hoisting and launching.
Description
technical field [0001] The invention relates to the technical field of ship launching, in particular to a method for hoisting and launching large barges based on double gantry cranes of different tonnages. Background technique [0002] When the completed barge is launched into the water, it usually adopts the method of hoisting into the water. This method has a short operation cycle and few preparations in the early stage. It only needs to weld the lifting ring, and it does not occupy the dock operation cycle. It does not need to open the dock door and do The water pressure leveling of the ship body and the towing operation do not require tugboats to assist in towing in and out of the dock, so this method is widely used. [0003] Existing large barges are large in size and heavy in hull. For example, a batch of completed barges has a molded depth of 4.5M, a molded width of 11.41M, a length of 109.79M, and a hull structure weight of 718T. After designating the location, use ...
Claims
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IPC IPC(8): B66C19/00B66C1/14B66C13/16B66C13/18B66C13/08
Inventor 金勇飞金炼
Owner JIANGSU HAITONG OFFSHORE ENG EQUIP