Installation process of square hopper door of dredger

Abstract

The invention discloses an installation process of a square hopper door of a dredger. The installation process comprises ten steps. According to the installation process of the square hopper door of the dredger, during the assembly process of the square hopper door, after hopper door lug plates are connected with hopper door bodies through pin shafts, the horizontal positions of the lug plates andthe hopper door bodies are adjusted to reach the consistent horizontal position; and then the hopper door bodies are pushed into a hopper doorway and are leveled by a jack, and the lug plates are subjected to spot welding. The operation directly adjusts the horizontal positions of the lug plates and the hopper door bodies, shaft holes reach the same position, the shaft holes are not required to be subjected to secondary machining after installation, the operation procedures are reduced, the workload of the staff is reduced, and the work efficiency is higher.

Description

technical field [0001] The invention relates to the field of steel structure assembly, in particular to an installation process of a dredger square mud door. Background technique [0002] The square mud door on the hull is composed of two square mud doors at the side and the square mud door at the midship. The two square mud doors have the same structure except for the difference between the boss and the rubber strip splint. The main structural parts of the square mud door are composed of upper and lower panels, ear plates, adjusting webs, internal ribs and splints for fixing sealing strips. During the installation process of the square mud door, it is necessary to focus on the coaxiality of the lug plate at the hinge point in the square door structure, as well as the levelness of the panel and the adjustment web, so as to ensure the installation accuracy of the square mud door. The prior art CN 104625452 A is disclosed An installation process for a square mud door of a dre...

AI Technical Summary

Problems solved by technology

During the installation process of the square mud door, it is necessary to focus on the coaxiality of the lug plate at the hinge point in the square door structure, as well as the levelness of the panel and the adjustment web, so as to ensure the installation accuracy of the square mud door. The prior art CN 104625452 A is disclosed An installation process for a square mud door of a dredger is proposed. This patent adopts the method of first installing ear plates on the mud door and fixing them by spot welding. After adjusting the horizontal position of the two mud doors, the mud door is positioned and assembled on the mud door. During the installation process, due to the welding deformation, it is necessary to reserve a 20mm machining allowance for the shaft hole before the ear plate is fixed and assembled, and then after the welding between the assembly parts on the square mud door is completed, the finishing of the shaft hole on the lug plate is required , there are many processes, the operation is troublesome, and the labor force of workers is increased

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