Synchronous rectangular shallow hole drilling machine with horizontal cantilever and haunch

CN117027644BActive Publication Date: 2026-07-07CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED
Filing Date
2023-08-29
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing drilling rigs cannot simultaneously drill rectangular pile holes with horizontal cantilever and vertical pile body in rock mass, and the low integration of drilling and slag removal equipment leads to low construction efficiency and high cost.

Method used

A rectangular shallow hole drilling rig with a horizontal cantilever and a haunch is used, which combines a drilling rig with a vertical drill rod, a sliding horizontal drilling assembly, and a vertical drilling device. It is fixed by an electromagnetic device to achieve synchronous construction. The rig is equipped with a mixing, crushing, slag suction and grouting system to achieve simultaneous drilling and slag removal.

Benefits of technology

It enables efficient drilling of rectangular pile holes with haunches and horizontal cantilever structures in rock strata, improving construction efficiency, reducing construction costs, avoiding other mechanical assistance, and achieving high integration of the drilling rig, thus reducing construction procedures.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117027644B_ABST
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Abstract

The application discloses a synchronous rectangular shallow hole drilling machine with a horizontal cantilever with a haunch suitable for rock stratum, which comprises a drilling rig with a vertical drilling rod, wherein the lower end of the vertical drilling rod is sequentially provided with a pipeline fixing frame, a rock slag treatment mechanism, a sliding horizontal drilling assembly and a vertical drilling device; the rock slag treatment mechanism comprises a stirring device, a crushing device, a slag suction system, a slag discharge system and a grouting system; the grouting system is connected to the sliding horizontal drilling assembly and the vertical drilling device; the sliding horizontal drilling assembly comprises a horizontal drilling device, a horizontal hydraulic cylinder and a horizontal drilling reaction force frame; the sliding horizontal drilling assembly and the vertical drilling device are fixed through an electromagnetic device. The application has the advantages that the shallow rock mass is drilled and dug to form a rectangular pile hole with a horizontal cantilever with a haunch through the drilling rod, the electromagnetic device and the telescopic horizontal cylindrical drill with a reamer and a rolling cutter; the haunch, the horizontal cantilever and the vertical pile body can be formed at one time, other mechanical aids are not needed, the construction efficiency is improved, and the construction and equipment costs are saved.
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