A method for repairing the stern springboard hinge of a rolling ship

Abstract

The invention discloses a method for repairing the stern springboard hinge of a rolling ship. The method is based on a special support device for the stern springboard. The device includes an upper support seat, a lower support seat, and multiple hydraulic oil pumps. The support base is installed on the stern ramp corresponding to the hinge position, the lower support base is installed on the stern deck, and the hydraulic oil pump is installed between the upper support base and the lower support base. The method includes the following steps: S1 Close and fix the stern ramp, so that the hinge of the stern ramp is exposed; the S2 hydraulic oil pump is lifted upwards, so that the hydraulic oil pump bears the full weight of the stern ramp. In the method of the present invention, the use of the upper support seat and the lower support seat plays the role of increasing the support point of the jacking, so that the stern ramp is vertically stressed during the jacking process, and the risk of overturning caused by the oblique force of the stern ramp is avoided. It can make the construction safety of the stern springboard hinge of the rolling ship ship higher, reduce the construction strength and difficulty, and shorten the construction period.

Description

technical field [0001] The invention belongs to the technical field of ship building, and in particular relates to a method for repairing a stern springboard hinge of a rolling ship. Background technique [0002] Since the stern ramp is the only channel for vehicles to enter and exit on the ro-ro ship, it is used more frequently, and it is easy to cause damage to the stern ramp hinge after long-term use. Once damaged, it is difficult to repair. For the lack of effective support for the complex structure of the stern ramp, usually lifting equipment is used to lift the stern ramp to a certain height during maintenance, and steel pipes and other materials are used for support. This form has the following disadvantages: [0003] 1. The structure of the stern ramp itself is complex, and there are great safety hazards when lifting it with lifting equipment; [0004] 2. Use hoisting equipment to lift, which is subject to great constraints on the site and high cost; [0005] 3. I...

AI Technical Summary

Problems solved by technology

[0003] 1. The structure of the stern ramp itself is complex, and there are great safety hazards when lifting it with lifting equipment;

[0004] 2. Use hoisting equipment to lift, which is subject to great constraints on the site and high cost;

[0005] 3. It is impossible to completely correspond the support to the strong structure, which may easily cause deformation of the hull structure

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