Main arm mechanism of rock drill

Abstract

The invention provides a main arm mechanism of a rock drill. The main arm mechanism comprises a main arm mounting seat, wherein a rotary mechanism for driving the rotary action of a main arm is mounted on the main arm mounting seat; a main arm connecting seat is mounted on a main shaft of the rotary mechanism, lug plates are fixed on the end face of the main arm connecting seat; the main arm is mounted between the lug plates through a swing mechanism; a telescopic arm for mounting the rock drill is slidably mounted on the main arm in a matched mode, and a first linear driving mechanism for driving the telescopic arm to slide along the main arm is mounted between the telescopic arm and the main arm; the rock drill is slidably mounted on the telescopic arm through a second linear driving mechanism in a matched mode; and an output shaft of the rock drill is connected with a drill pipe, and a drill bit is mounted on the head of the drill pipe. The main arm mechanism can adjust the length of the rock drill conveniently, the rotation angle of the rock drill is further adjusted conveniently, and the drilling accuracy is high, thus the drilling efficiency of shot holes is greatly improved.

Description

technical field [0001] The invention relates to the field of mining machinery, in particular to a main arm mechanism of a rock drilling machine. Background technique [0002] In the mining process of mines, directional blasting technology needs to be adopted, and blastholes need to be drilled at the initial stage of blasting. At present, the commonly used equipment for drilling blastholes is mainly rock drilling trucks, whose main arm length, rotation angle and rotation direction cannot be adjusted. In order to realize For drilling blastholes in different positions, the slight movement and adjustment can only be realized by means of the movement of the rock drilling truck body. The above-mentioned position adjustment is inconvenient, and the adjustment accuracy is not high, which may easily lead to skewed defects in the drilled holes, and cannot meet the needs of directional blasting. Contents of the invention [0003] In order to solve the above technical problems, the p...

AI Technical Summary

Problems solved by technology

[0002] In the mining process of mines, directional blasting technology needs to be adopted, and blastholes need to be drilled at the initial stage of blasting. At present, the commonly used equipment for drilling blastholes is mainly rock drilling trucks, whose main arm length, rotation angle and rotation direction cannot be adjusted. In order to realize For blasthole drilling requirements at different positions, its subtle movement and adjustment can only be realized by means of the movement of the rock drilling truck body

The above-mentioned positions are inconvenient to adjust, and the adjustment accuracy is not high, which may easily lead to skewed defects in the drilled holes, which cannot meet the needs of directional blasting

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