A kind of drag head device used for dredging suction boat

Abstract

The invention discloses a drag head device used for a silt drag-suction dredger, and relates to the technical field of desilting and dredging devices. The drag head device comprises a drag-suction head fixedly connected with a guide pipe. The inner surface of the guide pipe is in sliding fit with two fixing rods which are symmetrically arranged. Multiple connection rods are arrayed on the circumferential faces of the fixing rods. The fixing rods are connected with telescopic devices through rotation connection pieces and connection blocks. According to the drag head device, by arranging the fixing rods and fixedly connecting the fixing rods with the connection rods provided with rake teeth, the problem that sundries enter an existing drag head and block silt conveying pipes or silt pumps is solved; and the guide pipe and the telescopic devices are arranged, leftward-rightward movement of the fixing rods is achieved through cooperation of the fixing rods, the guide pipe and the telescopic devices, and the problems that it is difficult to clean existing gratings which are blocked, time and labor are consumed, and the work efficiency is influenced are solved.

Description

technical field [0001] The invention belongs to the technical field of dredging and dredging equipment, and in particular relates to a drag head device used for dredging and suctioning mud and sand boats. Background technique [0002] Rake-suction dredgers will encounter various soil conditions during the construction process. In order to prevent debris from entering the rake-suction head and blocking the mud pipeline or mud pump, the rake-suction head is generally equipped with a grille. The traditional The grille is generally in the form of a hard grille, that is, a rigid structure welded by steel plates or round steel. However, garbage or stones are still blocked on the grille under the action of suction, which will greatly reduce the production efficiency of the rake suction ship. Blockage, there are practical construction problems such as difficult to remove, time-consuming and labor-intensive, unable to maintain the continuity of construction, reducing time utilization...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a drag head device for a mud rake suction ship. By setting a fixed rod, the fixed rod is fixedly connected to the connecting rod with rake teeth, which solves the problem that the existing sundries enter the drag head and block the mud delivery pipe. road or mud pump; by setting the guide pipe and telescopic device, using the fixed rod to cooperate with it, the left and right movement of the fixed rod is realized, which solves the problem that the existing grid block is difficult to remove, time-consuming and labor-intensive, and affects work efficiency.

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