Double-medium high-pressure rotating joint

Abstract

The invention relates to a double-medium high-pressure rotating joint. A main shaft is supported and arranged in a shell through a bearing assembly; a second core tube is arranged above the bearing assembly, and the lower end of the second core tube is spaced from the upper end of the bearing assembly through a first spacer bush; an upper blocking ring, a thrust ball bearing and a lower blocking ring are sequentially arranged in the core tube and sleeve the main shaft, and the upper blocking ring and the lower blocking ring cling to an upper seat ring and a lower seat ring of the thrust ball bearing; an upper seat is connected with the upper end of the shell, a first core tube is connected to the upper end of the main shaft, a connecting tube is arranged in an inner hole of the main shaft, the upper end of the connecting tube is connected with the lower end of the core tube through a first joint, and the lower end of the connecting tube is connected with a second joint; and a small cover is connected to the upper end of the upper seat, the upper end of the core tube extends into the small cover, the upper seat is provided with an air inlet joint, and a cement slurry port in the small cover is connected with a cement slurry joint assembly. By using the double-medium high-pressure rotating joint, mediums can be replaced or overlaid under the condition that a device is not replaced and parts are also not disassembled or replaced; in addition, double mediums can be simultaneously injected, so that the working time is shortened, and the work efficiency is increased.

Description

technical field [0001] The invention relates to a high-pressure rotary joint, in particular to a double-medium high-pressure rotary joint, and belongs to the technical field of construction tools in construction machinery foundation equipment. Background technique [0002] In foundation construction, the soil layer is sometimes treated with anti-seepage, water-proof or reinforcement treatment, so fixed spraying, pendulum spraying or rotary spraying grouting will be carried out into the soil layer to achieve the purpose of anti-seepage and strengthening the bearing capacity of the foundation. Most of the conventional nozzles can only realize the use of one high-pressure medium. When the medium needs to be replaced, the device needs to be adjusted, and sometimes it needs to be shut down for modification, which prolongs the auxiliary time of construction and reduces the overall work efficiency. Contents of the invention [0003] The purpose of the present invention is to over...

AI Technical Summary

Problems solved by technology

Most of the conventional nozzles can only realize the use of one high-pressure medium. When the medium needs to be replaced, the device needs to be adjusted, and sometimes it needs to be shut down for refitting, which prolongs the auxiliary time of construction and reduces the overall work efficiency.

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