Powerful crushing reamer

Abstract

The invention provides a powerful crushing reamer. The powerful crushing reamer comprises a bottom ring, a shaft hub, reamer arms, reamer teeth, a high-pressure flushing pipe system and a reamer transmission shaft. A high-pressure flushing pipe system is installed on a traditional reamer head, the soil breaking capacity of the reamer head and the capacity of removing viscous soil on a reamer are improved, and the purposes of reducing the abrasion loss of reamer teeth, reducing clay blockage and improving the digging efficiency of the reamer are achieved.

Description

technical field [0001] The invention belongs to the field of excavating machines for cutter suction ships in dredging engineering, and in particular relates to a powerful crushing reamer. Background technique [0002] In the dredging industry, self-propelled trailing suction dredgers are the mainstream ship type for large-scale port channel dredging. Modern trailing suction dredgers mainly use the rake teeth installed at the bottom of the rake head for mechanical cutting, supplemented by high-pressure flushing to ensure Larger dredging depth and soil breaking volume, and then sucked into the mud cabin through the mud pump. High-pressure water jets have been applied on trailing suction dredgers, but the reamer is a rotating part, and the rake head is a translational part. The arrangement of high-pressure water jets for reamer rotation has not yet been used in related applications. However, at present, the pressure of the high-pressure jet commonly used in domestic rake sucti...

AI Technical Summary

Problems solved by technology

[0005] First, when the soil is very hard, the reamer is difficult to penetrate into the soil, and it is difficult to obtain the ideal excavation effect only by increasing the cutting power of the reamer, and the soil breaking ability is poor;

[0006] Second, the hard clay with strong viscosity is easy to stick to the reamer or form balls to block the suction port, and the bridge needs to be retracted to clear the clogging of the reamer, resulting in frequent shutdowns and low efficiency

[0007] Third, with the increase of rock compressive strength, technical problems such as increased wear of cutter teeth and reduced service life of the cutter suction dredger will occur during the construction process of the cutter suction dredger, which will affect the excavation efficiency of the cutter

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