Digging machine for ore mining
By setting up a protection unit on the drilling machine, including the impact structure on the top of the protective tube and drill head, the problems of collapse of the hole wall of the soft ore layer and insufficient pre-cracking of the hard rock layer are solved, and stable drilling and efficient crushing are achieved.
CN120444021AActive Publication Date: 2025-08-08LIANYUAN LUOJIAPING QUARRYING CO LTD
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Patent Information
- Application Number
- CN202510941126.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2045-07-09
AI Technical Summary
Technical Problem
The existing drilling machines can easily lead to collapse of the hole wall when drilling in soft ore layers, affecting the drilling depth and subsequent blasting effect, and insufficient pre-cracking of the hard rock layer, resulting in a small crushing range and low energy utilization.
Method used
The protection unit is adopted, including the impact structure of the protection tube and the top of the drill bit, and by supporting the hole wall and pre-crack, the hole wall collapses and improves the stability and crushing efficiency of the drill bit.
Benefits of technology
Effectively prevent hole wall collapse, improve the stability and crushing effect of drill bits in soft ore layers, enhance the pre-cracking capacity of hard rock layers, and improve energy utilization.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a digging machine for ore mining, and relates to the technical field of mining decomposition, the digging machine comprises a connecting arm and a digging unit; the digging unit is arranged at the front end of the connecting arm, the digging unit comprises a drill bit, the drill bit is arranged on the side portion of the connecting arm, the top of the drill bit is in transmission connection with the driving unit through a drill shaft, and the digging device further comprises a protection unit which is arranged on the outer side of the drill shaft in a sleeving mode. Large-range collapse of the hole is avoided through supporting of the protection pipe barrel, the hole wall is compacted and reinforced to a certain degree through outward pushing movement of the multiple outward pushing faces arranged on the surface of the protection pipe barrel, the influence of collapse of the hole wall on drill bit construction is further avoided, the top face of the drill bit is impacted and vibrated, impacting and chiseling of the drill bit are more concentrated, and the drilling efficiency is improved. The drill bit is prevented from being stuck, the influence on the hole wall is reduced, longitudinal and transverse buffering arranged at the top of the drill bit ensures the movement stability of the drill bit in the hole, and after the drill bit is withdrawn, the hole wall is relatively compact and not prone to collapse.
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