Sawing impact head

CN117211810BActive Publication Date: 2026-07-07ANHUI CHUANGBO JIAYING RAIL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI CHUANGBO JIAYING RAIL EQUIP CO LTD
Filing Date
2023-08-30
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing technologies suffer from over-excavation and under-excavation issues in tunnel construction, leading to increased construction safety and costs. Furthermore, existing equipment has high requirements for telescopic adjustable arms and mobile trolleys, and the uneven rock fracture surfaces affect subsequent processes.

Method used

The sawing impact head, including a sawing component and an impact blade component, is used to cut the saw kerf with a saw blade and to precisely control the stone fracture by using a stepped impact blade and a conical crushing blade to form a regular cross-section.

Benefits of technology

It enables rapid and precise adjustment of the tunnel outline during tunnel construction, ensuring construction quality and progress, and avoiding impact on subsequent procedures.

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Abstract

The present application relates to a sawing and impacting head. The sawing and impacting head comprises a mounting base, a sawing assembly, an impacting knife assembly and a breaking hammer arranged in sequence on the mounting base. The sawing assembly cuts a sawing seam on the stone during movement of the mounting base. The impacting knife assembly is driven by the breaking hammer to impact the sawing seam so as to break the stone. The sawing assembly comprises a plurality of saw blades arranged concentrically and at equal intervals, and the saw blades are driven by a motor. The present application can effectively solve the overbreak and underbreak problems of the existing tunnel contour line by reserving underbreak and then cutting the reserved surrounding rock by the sawing and impacting head, so as to ensure the construction progress and construction quality.
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