Self-adaptive pipe-jacking intelligent heading machine head

By designing the knife cartridge and teeth grinding system in the head of the top tube, the function of switching different cutting heads according to the geological environment is realized, the problem of long construction cycles in the existing technology is solved, and construction efficiency and adaptability are improved.

CN119572255AActive Publication Date: 2025-03-07SHENZHEN ROAD & BRIDGE CONSTR GRP
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Patent Information

Application Number
CN202411782860.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-03-07
Estimated Expiration
2044-12-05

AI Technical Summary

Technical Problem

In the case of complex underground structures, existing pipe headers are difficult to quickly adapt to different geological environments, resulting in an extended construction cycle.

Method used

Design an adaptive top tube intelligent boring head. By installing a knife cartridge in the head, different cutting heads or crushing heads can be switched according to the geological conditions, and soil and gravel are processed through grinding discs and grinding systems.

Benefits of technology

It improves the adaptability of the machine head to complex environments, significantly improves the efficiency of pipe head construction, shortens the construction cycle, and simplifies operation by automatically replacing the tool head.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of underground tunneling equipment, and discloses a self-adaptive pipe-jacking intelligent tunneling machine head which comprises a fixed cylinder, a movable cylinder, a movable frame, a cutter head and a cutter bin, the movable cylinder is funnel-shaped, the small-diameter section of the movable cylinder extends into the fixed cylinder, the movable frame is rotatably mounted in the movable cylinder, a transmission shaft is mounted in the middle of the movable frame, and the cutter head is mounted in the transmission shaft. The transmission shaft penetrates through the movable cylinder and then is connected with an output shaft of the motor through a universal coupling, the cutter head is installed at the end of the transmission shaft, the cutter bin is installed between the cutter head and the supporting frame, the movable cylinder is provided with a rotating disc bearing seat for supporting the cutter bin, cutting tool bits and crushing tool bits are evenly installed in the cutter bin, and an installation groove is formed in the cutter head. A tool changing mechanism enabling the cutting tool bit or the crushing tool bit to participate in excavation is further installed in the tool bin. The tool bin is installed in the machine head, the corresponding cutting tool bit or crushing tool bit can be replaced according to the geological condition of tunneling, the adaptation effect of the machine head to the complex environment is improved, and the efficiency of pipe jacking construction is effectively improved.
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Citation Information

Patent Citations

  • Muddy water balance push bench

    CN103398214A

  • Tool bit replacing device capable of being used for tube push bench

    CN113236277A

  • Full-section rock tunnel boring machine

    CN114412490A

  • Pipe jacking machine capable of changing tool at normal pressure

    CN216518015U

  • Center cutter for tunneling machine

    JP2021098969A