利用龙门起重机的船舶下水方案,在国内还是首次应用。为此而设计的两台2×100 T龙门起重机已经安装在宁波渔轮修造厂使用,可以将一条600马力的渔轮吊起后上墩或下水。该起重机有两个吊点固定在门架主梁的两端,用起重量为100 T的两个主钩来起吊船舶。起重机的小跑车上有用双电动机驱动的30 T付钩,供造船时吊装船舶分段之用。如将付钩换成 The use of gantry crane ship launching program, the first time in the country. Two 2 × 100 T gantry cranes designed for this purpose have been installed at the Ningbo Fishing Vessel Repair Factory to lift a 600-horsepower fishing vessel onto the pier or into the water. The crane has two lifting points fixed at both ends of the gantry girder, the two main hook with a capacity of 100 T to lift the ship. There is a double motor-driven 30 T-hook on the small sports car of the crane for the purpose of hoisting the ship for segmenting. If the hook will be replaced