Automatic underground coal bunker arch breaking equipment

Abstract

A fully automatic underground coal bunker arch breaking equipment, including a coal bunker, a drill pipe mechanism is arranged in the coal bunker, the drill pipe mechanism includes an outer casing, a hollow shaft hydraulic motor is fixed in the middle of the outer casing, and a rotating shaft is suspended inside the outer casing. shaft, the side wall of the rotating shaft is provided with a shaft key, and the center hole of the hollow shaft hydraulic motor is provided with a keyway corresponding to the shaft key, the rotating shaft passes through the hollow shaft hydraulic motor and can move up and down, the bottom of the rotating shaft One end is fixedly connected to the connecting shaft, and the lower end of the connecting shaft passes through the outer shell and is fixedly connected to the drill pipe. The present invention realizes automatic arch breaking by hanging the drill bit, which replaces the need for manual on-site operation in the past, and solves the safety problem; the present invention erects the outer shell, and erects a hollow power device in the middle to provide rotational power, and hangs the rotating shaft inside Through the hollow power device, it can move up and down while rotating, so that the drill bit can move up and down freely in the coal bunker.

Description

technical field [0001] The invention relates to a coal bunker arch breaking technology, in particular to a fully automatic underground coal bunker arch breaking device. Background technique [0002] With the continuous improvement of fully mechanized mining and the continuous realization of centralized production in mining areas, the capacity of coal bunkers has gradually increased, and the use efficiency has become higher and higher. However, the coal bunkers in the mining area of ​​almost all mines are blocked to varying degrees in the process of production and use, and need to be dealt with frequently. This will not only fail to give full play to the role of the coal bunker, but also affect production. [0003] At present, most of the common blockages in coal bunkers are arched, so it is called arching phenomenon. The reason for this is that when the coal feeder discharges coal, the coal flows down in the bunker to form a stable material flow. When the lumps of coal inter...

AI Technical Summary

Problems solved by technology

[0005] 1. Manual dredging: it is the most widely used method at present. Manually use some kind of long rod to dredge the broken arch. If it is not enough, use a drilling machine to dredge the broken arch. These operations are dangerous and time-consuming and inefficient.

[0006] 2. Blasting and dredging: the arch is very strong, and manual drilling is used for blasting. There are many adverse consequences of blasting, and the danger and impact on production are self-evident.

[0007] 3. Other methods: high-pressure water and rubber bullets, etc. There are small-scale experiments, but limited by the actual effect, they have not been promoted

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