Automatic device and method for simulating drilling of anchor rod hole in tunnel

Abstract

The invention relates to an automatic device for simulating drilling of an anchor rod hole in a tunnel. A conical driven gear and a conical driving gear, which are engaged with each other, are disposed in a head housing. The conical driven gear is coaxially provided with a vertical shaft, a drill bit clamp, and a drill bit. The outer part of the head housing is provided with a displacement sensor on the same side of the drill bit. The bottom part of the conical driving gear is disposed on a transmission shaft, which is coaxially provided with at least a group of supporting shoes. The transmission shaft is coaxially disposed on a mini-sized rotating motor and a rotating shaft. The angle positioning gear of the bottom part of the rotating shaft is engaged with a gear of a mini-sized stepping motor. A computer control system is connected with the mini-sized stepping motor, the mini-sized rotating motor, and the displacement sensor. The drilling of the anchor rod hole in the specific position of the tunnel can be simulated accurately, and the operation is simple, and therefore the tunnel simulation testing result is accurate and reliable, the device provided by the invention can be widely used for the drilling of the anchor rod hole in the tunnel surrounding rock and other rock masses, and device can be cooperated with the test and the research of the tunnel surrounding rock and other rock masses.

Description

Technical field [0001] The invention belongs to the technical field of rock mass mechanics model test equipment, and in particular relates to an automatic device for simulating bolt drilling in a tunnel and a use method thereof. Background technique [0002] With the rapid development of the national economy and society, many unprecedented large and super large projects have emerged at home and abroad to meet the needs of the rapid development of society, such as water conservancy, transportation, tunnels, and various national defense projects. In urban infrastructure construction, the available land resources are declining, and more and more infrastructures are moving underground. An underground tunnel is a complex project. Its surrounding rock is in a complicated geological environment. At the same time, the size of underground caverns is getting larger and larger, so the stability study of underground caverns is particularly important. It is of great theoretical significance ...

AI Technical Summary

Problems solved by technology

However, when the simulated tunnel is long, the diameter of the simulated tunnel is small, or there is concealed excavation, it is almost impossible to excavate the bolt holes with manual drilling or hand-held drilling rigs in the narrow and long simulated tunnels; It is almost impossible to accurately locate the drilling position and drilling depth

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