Self-propulsion trailing suction hopper dredger

Abstract

The invention discloses a self-propulsion trailing suction hopper dredger. The self-propulsion trailing suction hopper dredger comprises a dredger body; a movable cover is provided with a driving pressing block; a second driving device is arranged at the top of the driving pressing block; the movable cover is internally provided with a translation mechanism; the translation mechanism is provided with a movable through hole; a rake tooth shell is arranged in the movable cover; the rake tooth shell is internally provided with an engagement block; rake teeth are arranged on an inclined plane of the engagement block; a fixed plate is arranged on the top surface of the engagement block; positioning shafts are arranged on the two sides of the fixed plate; a first high-pressure water spraying device is vertically arranged on the inner side of the movable cover; and a second high-pressure water spraying device is obliquely arranged at the outer end of the movable cover. The first high-pressure water spraying device and the second high-pressure water spraying device are matched with each other and spray water to each other, so that underwater soil blocks are loosened; meanwhile, the rake teeth are driven to move up and down; one section of notch is opened underwater, and hard sludge can be conveniently raked when the rake teeth rake the sludge, so that digging resistance of a rake head is reduced, and the digging capability and dredging efficiency of the rake head are improved; and the self-propulsion trailing suction hopper dredger has the effects of high sludge digging efficiency and low production cost.

Description

technical field [0001] The invention belongs to the technical field of dredger design, in particular to a self-propelled trailing suction dredger. Background technique [0002] The self-propelled trailing suction dredger is a large self-propelled, bin-loaded dredger equipped with a rake head excavator and a hydraulic dredging device. The mud pump, with the rake head lowered into the water, uses the rake head to suck the mud into the cabin, and works in a way of suction and sailing. The specific work of the self-propelled trailing suction dredger is as follows: when dredging, put the suction pipe down the river bottom, and use the vacuum effect of the mud pump to absorb mud from the bottom of the river through the rake head and suction pipe and enter the mud bin of the dredger , After the mud bin is full, lift the rake and sail to the mud throwing area to open the mud door to unload the mud, or directly discharge the dredged mud out of the ship. The self-propelled trailing ...

AI Technical Summary

Problems solved by technology

[0003] For some rivers, due to the turbidity of the river water, it is difficult for self-propelled trailing suction dredgers to observe the rake head under the river water, and it is impossible to know the position of the rake head in the river channel and the dredging depth , resulting in poor dredging effect of the rake head; moreover, the bottom of different river channels sometimes encounters dense compacted silt, fine sand and hard clay. Production Efficiency and Construction Progress of Air Trailer Suction Dredger

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