Modular geological exploration core drilling rig

Through modular design and adaptive axial compensation of the compensator, the difficulties of relocation and drill rod thread damage of traditional core drilling rigs in complex terrain areas have been solved, enabling rapid deployment and stable drilling, and improving the efficiency and safety of geological exploration.

CN122039988BActive Publication Date: 2026-07-24BEIJING INST OF EXPLORATION ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF EXPLORATION ENG
Filing Date
2026-03-27
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing core drilling rigs for geological exploration are difficult to relocate in complex terrain areas. Traditional tower drilling rigs require large site areas, have long assembly and disassembly cycles, and involve high labor intensity for workers. Furthermore, the drill rod threads are easily damaged during tripping operations, resulting in poor synchronization and affecting the service life of the drill rods and construction safety.

Method used

The core drilling rig adopts a modular design and is equipped with a screw-off compensation device. The compensator realizes axial adaptive elastic compensation between the power head and the drill pipe, automatically matches the thread pitch feed for thread engagement/disengagement, avoids thread damage and extrusion deformation, and ensures the continuity of the mud delivery channel.

Benefits of technology

It enables rapid relocation and deployment of drilling rigs in complex terrain areas, reduces operational difficulty, extends the service life of drill pipes, improves the stability and safety of drilling operations, and reduces construction risks.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122039988B_ABST
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Abstract

The application relates to the technical field of core drilling machines for geological exploration, and discloses a modular core drilling machine for geological exploration, wherein the bottom end of a driving rod is connected with a drill rod through a compensator, an orifice holder for clamping the drill rod is installed on the drill base, a connecting seat is connected to the top of a limiting seat, a guide seat for transmitting rotary torque is longitudinally slidably arranged in the limiting seat, a mud pipe is slidably arranged in the connecting seat, the bottom end of the mud pipe is fixed to the top of the guide seat, a traction spring is fixedly connected between the top of the guide seat and the bottom of the connecting seat, the traditional transmission mode of rigid straight connection between an existing power head and a drill rod is broken, the compensator simultaneously satisfies three core requirements of circumferential rigid torque transmission, axial self-adaptive elastic compensation and full-stroke high-pressure mud channel through sealing, the core pain point of easy damage of the drill rod thread in the tripping operation of the core drilling machine is solved from the root, and the problems of thread strain and extrusion deformation are completely avoided.
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