A Modular Underground Down-the-hole Drilling Rig Adaptable to Low Environment

Abstract

The invention discloses a modular underground down-the-hole drill adaptable to a low environment, which comprises a main engine and a chassis assembly, wherein the chassis assembly is connected with the main engine through a drill arm assembly, and a leg assemblies are mounted on the chassis assembly; the main engine comprises a rotary head assembly, an upper jacking oil cylinder, a propeller assembly, a drill stem unloading device assembly, a dust collection cover assembly, a lower jacking mechanism and a compensating cylinder; the rotary head assembly is mounted above the front part of the propeller assembly, the drill stem unloading device assembly is mounted below the front part of the propeller assembly, the lower jacking mechanism is mounted below the side face of the propeller assembly and is connected with the dust collecting cover assembly, the dust collecting cover is positioned right below the drill stem unloading assembly, an upper jacking cylinder is mounted above the side face of the propeller assembly, and two ends of the compensating cylinder are connected with a drill boom assembly and the propeller assembly respectively. The modular underground down-the-hole drill adaptable to the low environment has a compact structure, and can be suitable for low roadways and narrow construction spaces; each independent unit can be modularly and freely combined and has the self-movement capability, the dust collection effect is high, and the stability is strong.

Description

technical field [0001] The invention belongs to the technical field of mining machinery, in particular to a modular underground down-the-hole drilling machine adaptable to low-level environments. Background technique [0002] Restricted by geological environment, construction cost and other factors, there are a large number of low-profile and narrow wells, which put forward higher requirements for the structural size of underground DTH drilling rigs; in view of complex and changeable construction conditions, the drilling range of DTH drilling rigs At the same time, due to the change of the aperture size, higher requirements are put forward for the modular design of the drilling rig, that is, by replacing a certain module of the drilling rig, rock drilling and breaking holes with different apertures and different torques can be realized, which greatly saves costs. [0003] At present, dust leakage during the working process of down-the-hole drilling rigs is an important facto...

AI Technical Summary

Problems solved by technology

At present, there are several problems in the actual work of the domestic dust collection cover: short life, serious damage, impact and crushed rock particles, blown out from the bottom of the hole with high speed and force by high-pressure airflow, and continuously hit the dust collection cover, especially It is serious when opening holes; serious leakage problems, vibration during work, etc. will affect the fit of the dust cover to the rock surface, resulting in a gap with the rock surface, and dust leaks out; will cause dust to escape from the pores

Although this patent can remove dust to a certain extent, when the dust collection cover is severely impacted, there will be a gap with the rock surface, the dust will leak, and the dust collection cover will be damaged at the same time

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