High precision welding method for rudder horn, propeller shaft bracket and intermediate shaft bracket of long shaft ship
A technology of hanging rudder arm and tail shaft frame, which is applied in ship construction, welding equipment, ship parts, etc., can solve the problems of long occupancy of dock, poor construction environment of dock, and difficulty in ensuring installation accuracy.
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[0064] The present invention will be further described below in conjunction with specific examples.
[0065] Taking the 50000T semi-submersible ship as an example, a high-precision welding method for the rudder arm, tail shaft frame and intermediate shaft frame of a long-shafted ship in this embodiment is to pull out the ship according to the design requirements when installing the general assembly. Shaft centerline, after checking the shaft centerline, do the following three parts at the same time:
[0066] 1. Welding of rudder arm
[0067] 2. Welding of tail shaft frame
[0068] 3. Welding of intermediate shaft frame
[0069] The first part of the welding of the rudder arm includes the following steps:
[0070] 1. First remove the outer plate connected to the rudder arm, and then position the rudder arm;
[0071] 2. Use a crane to lift the rudder arm above the installation position, then slowly lower it vertically, and use a pump or hoist to adjust it in place. According...
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