Drag suction dredger drag head ensuring mud passing ability

Abstract

The invention relates to a drag suction dredger drag head ensuring the mud passing ability. The drag suction dredger drag head comprises an outer shell, and an inner shell nested in the outer shell. The inner shell and the outer shell are connected in a hinged manner through two rotating shafts located on the two sides. A water guide box is arranged on the bottom of the outer shell. A water inputpipe is installed on the top of the outer shell. The lower end of the water input pipe extends to enter the shell, and the end portion of the water input pipe is connected with the water guide box ina penetrating manner. Multiple water spraying holes are formed in the bottom of the water guide box. Side plates are fixedly welded to the left side and the right side of the front portion of the inner shell. A cross beam is arranged between the two side plates. Two inner side bases are arranged on the cross beam. A front portion framework is arranged on the bottom of the cross beam. The drag suction dredger drag head further comprises a cover plate. Two outer side bases are arranged on the cover plate. The drag suction dredger drag head further comprises two hoisting arms provided with connecting holes. Multiple installing bases provided with thread holes are arranged in the length direction of the bottom of the cross beam. Harrow teeth are installed on the installing bases through fastening screws correspondingly. The drag suction dredger drag head is simple and compact in structural design and convenient to use, and ensures the passing ability of mud slurry.

Description

technical field [0001] The invention belongs to the technical field of dredging construction equipment, and in particular relates to a drag head of a trailing suction dredger which ensures mud passage. Background technique [0002] The trailing suction dredger is one of the suction dredgers. It sucks mud through the rake heads placed on both sides or stern of the hull, and works in a way of sucking mud while sailing. It uses a mud rake to loosen the soil, and a bottom mud tank is set in the middle of the ship. The volume of the tank indicates the size of the ship. Trailer suction dredger is a large self-propelled, bin-loaded dredger equipped with a drag head excavator and a hydraulic suction device. When dredging, lower the rake suction pipe to the bottom of the river, and use the vacuum of the mud pump to absorb mud from the river bottom through the rake head and suction pipe and enter the mud bin of the dredger. When the mud bin is full, lift the rake and sail to dump the...

AI Technical Summary

Problems solved by technology

Because the underwater situation is usually more complicated, if there are sundries such as rocks, the rocks will enter the rake head and the pipeline during the process of raking and sucking by the rake head. suction construction process

After the rake head is clogged, it is difficult to ensure the passage of mud, which leads to the reduction of the timeliness of the equipment and the extension of the construction period of the project

Therefore, it is necessary to optimize the design of the structure of the rake head to solve the above-mentioned problem of insufficient mud passage

Images