Automatic lifting and lowering controller for bridge of cutter suction dredger

Abstract

The invention discloses an automatic lifting and lowering controller for a bridge of a cutter suction dredger, and belongs to the technical field of engineering ship automation control. The automaticlifting and lowering controller for the bridge of the cutter suction dredger comprises automatic control over the depth deviation of a cutterhead and automatic linkage control over a trolley advancingon the bridge; the automatic control over the depth deviation of the cutterhead calculates the actual excavation depth according to the length of the bridge, the angle of lowering the bridge, the draft of a trunnion, the radius of the cutterhead and the tide level, a calculated deviation value and a set deviation value are used as the input of the automatic lifting and lowering controller for thebridge, and the bridge is controlled to be lifted and lowered automatically; and the automatic linkage control over the trolley advancing on the bridge is to raise the bridge for the trolley to advance, and after the advancing of the trolley are completed, the bridge is automatically lowered to the set depth. The automatic lifting and lowering controller can realize the automatic control over thebridge, the labor of dredging workers is greatly reduced, the operation difference between different operators is reduced, the construction precision is improved, the safety of the equipment is ensured, the fuel consumption of ships is reduced, and the construction economical efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of automatic control of engineering ships, in particular to an automatic controller for lifting and lowering bridge frames of cutter suction dredgers. Background technique [0002] After the 1990s, with the development of computer and network technology, the "whole ship integrated monitoring system" of dredgers has been gradually applied. Construction personnel can control the dredging equipment and monitor the dredging process through a remote workstation. However, traditional dredging operations rely heavily on the experience of dredging operators. When different personnel perform the same operation, there are large differences in construction efficiency and construction accuracy, which seriously affects the progress and economy of construction. The lowering depth of the bridge frame directly affects the construction accuracy (over-excavation, under-excavation). Because over-excavation will significantly...

AI Technical Summary

Problems solved by technology

Because over-excavation will significantly increase the amount of engineering, resulting in economic decline; under-excavation will lead to rework, and economic efficiency will further decrease

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