Double-drill bit tunnel automatic drilling machine and method

Abstract

The invention discloses a double-drill bit tunnel automatic drilling machine and a method. The drilling machine comprises a crawler chassis, a control supporting box, a hydraulic control box, a centersupporting shaft, a transverse shaft, a main oil cylinder, a motor and a double-drill bit mechanism. The method comprises the following steps that 1, a hole position mark is arranged; 2, the drillingmachine carries out automatic drilling in a tunnel section by; 3, the drilling machine carries out tunnel automatic drilling; 4, percussion drill trouble shooting is carried out; and 5, steel bar drill trouble hunting is carried out. According to the double-drill bit tunnel automatic drilling machine and the method, by arranging the double-drill bit mechanism, unnecessary abrasion to a steel bardrill is reduced, and the production cost is reduced; and the working state of the drilling machine is identified through the drilling depth and the drilling speed, whether a steel bar is encounteredor not in the drilling process is detected in time, the drilling is continuously carried out by timely switching the drill bit when the steel bar is encountered, the drilling machine is prevented fromworking in an abnormal state or drilling a non-normal hole, the working reliability is high, and the drilling machine is convenient to popularize and use.

Description

technical field [0001] The invention belongs to the technical field of tunnel automatic drilling, and in particular relates to a double-drill tunnel automatic drilling machine and method. Background technique [0002] When the auxiliary facilities on the inner wall of the tunnel are installed on the inner wall of the tunnel, it is necessary to drill installation holes on the inner wall of the tunnel first. However, there are many types of auxiliary facilities on the inner wall of the tunnel, and the number is large. The demand for installation holes on the inner wall of the tunnel is large. Drilling is manual work, the construction is very dangerous, the construction is difficult, the work efficiency is low, the labor intensity is high, a large amount of dust is generated during construction, the environmental conditions are poor, and the health of the construction workers is greatly damaged; at the same time, due to the There are many steel bars buried, and only the steel b...

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Problems solved by technology

[0002] When the auxiliary facilities on the inner wall of the tunnel are installed on the inner wall of the tunnel, it is necessary to drill installation holes on the inner wall of the tunnel first. However, there are many types of auxiliary facilities on the inner wall of the tunnel, and the number is large. The demand for installation holes on the inner wall of the tunnel is large. Drilling is manual work, the construction is very dangerous, the construction is difficult, the work efficiency is low, the labor intensity is high, a large amount of dust is generated during construction, the environmental conditions are poor, and the health of the construction workers is greatly damaged; at the same time, due to the There are many steel bars buried, and only the steel bar drill is used to punch holes in the tunnel concrete and the steel bars in the tunnel. Production cost; in order to improve work efficiency, reduce safety risks, and reduce production costs, there is an urgent need for a double-bit tunnel automatic drilling machine and method to replace manual operations and assist manual tunnel drilling

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