Offshore crane vessel and its moving method
A technology of marine cranes and cranes, which is applied in the direction of cranes, etc., can solve the problems of large wind resistance, large windward surface of the crane boom, unfavorable hull stability and navigation, and achieve the effect of reducing production costs and ensuring safety and reliability
Active Publication Date: 2015-10-28
JIANGSU HUAXICUN OFFSHORE ENG SERVICE
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Problems solved by technology
[0002] At present, in marine construction operations, floating cranes need to be used for lifting construction operations. Generally, a 1,000-ton crane is equipped with two 500-ton main hooks, one 300-ton auxiliary hook, and 15-ton rigging. One hook, the maximum lifting height of the main hook is 70 meters above the deck, and the auxiliary hook is 76 meters above the deck; the maximum amplitude of the main hook is 69.3 meters, the auxiliary hook is 75.2 meters, the total length of the jib is 87 meters; the total length of the hull is 90 meters , with a molded width of 30 meters and a molded depth of 7 meters. Since the ship is an offshore crane, according to the CCS offshore crane regulations, it is required that the force generated by the ship’s motion acceleration and the static load force of the components must meet the wind speed requirement of 55m / S; while the conventional The crane jib of the crane ship is installed vertically on the hull, because when the hull sails to the designated position, the crane jib has a large windward surface and large wind resistance, which is not conducive to the stable navigation of the hull
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[0046] see Figure 1~6 , a kind of marine crane ship that the present invention relates to, said marine crane ship includes:
[0047] a hull 1 on which a crane is installed;
[0048] A sliding track 4 installed on the hull 1;
[0049] A sliding base 3 hinged to the bottom of the crane jib 2 and slidably connected to the sliding track 4;
[0050] A sliding traction mechanism 5 for pulling the sliding base 3 on the sliding track 4;
[0051] A luffing mechanism 6 connected to the top of the crane jib 2 to pull it up (the luffing mechanism 6 is an inherent mechanism of the crane, which is used for sliding in this patent);
[0052] A jib shelving frame 7 installed on the hull 1 for shelving the crane jib 2;
[0053] Its basic movement method is:
[0054] When moving back and lowering:
[0055] Step A1: Start the action of the luffing mechanism 6 so that the crane boom 2 forms an angle of 60° with the horizontal plane, and then stop the luffing mechanism 6;
[0056] Step A2: ...
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The invention relates to an ocean crane ship and a moving method thereof. The ocean crane ship comprises a ship body (1) provided with a crane, a sliding rail (4) mounted on the ship body (1), a sliding base (3) which is hinged with the bottom of a crane boom (2) and is slidingly connected with the sliding rail (4), a sliding hauling mechanism (5) which is used for hauling the sliding base (3) on the sliding rail (4), and a luffing mechanism (6) which is connected with the top of the crane boom (2) and is used for hauling the crane boom to be lifted. The ocean crane ship and the moving method thereof provided by the invention are good for stabilizing the sailing of the ship body.
Description
technical field [0001] The invention relates to a marine lifting ship and a moving method thereof, belonging to the technical field of marine engineering operations. Background technique [0002] At present, in marine construction operations, floating cranes need to be used for lifting construction operations. Generally, a 1,000-ton crane is equipped with two 500-ton main hooks, one 300-ton auxiliary hook, and 15-ton rigging. One hook, the maximum lifting height of the main hook is 70 meters above the deck, and the auxiliary hook is 76 meters above the deck; the maximum amplitude of the main hook is 69.3 meters, the auxiliary hook is 75.2 meters, the total length of the jib is 87 meters; the total length of the hull is 90 meters , with a molded width of 30 meters and a molded depth of 7 meters. Since the ship is an offshore crane, according to the CCS offshore crane regulations, it is required that the force generated by the ship's motion acceleration and the static load for...
Claims
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IPC IPC(8): B66C23/52B66C23/62
Inventor 周宏勤冯建伟孔祥华张亚东涂梦生
Owner JIANGSU HUAXICUN OFFSHORE ENG SERVICE