SU40305A1 - Mining harvester - Google Patents

Description

The invention relates to a mining combine with two horizontal pairs of solid bars and a vertical cutting bar.

In the proposed mining combine, both horizontal bars are equipped with a single cutting chain bending in two directions in order to cut coal near the soil and at the roof.

In the schematic drawing of FIG. 1 is a side view of the mining machine and FIG. 2 is the same section along the line J. B in FIG. one.

The proposed mining harvester is provided with a cutting part consisting of two horizontal bars - the top 7 and the bottom 8. provided with a single cutting chain 9, bent in two directions.

The cutting chain 9, running away from the drive sprocket 4, bends around the upper guide roller 5 and passes the longitudinal creamer of the upper bar 7 along the rounding, then, rounding off the rounding with which the bar 7 is bloated from the rear side, the cutting chain 9 returns towards the drive unit along the rear idle edge of the upper cutting bar 7, from which along a curve similar to the input one, it descends along the vertical guide onto the guide roller 6. After rounding the roller 6, the cutting chain passes into the horizontal idle edge A moving bar, in which the chain goes successively in the direction from the drive device, bends around the rounding, which ends the lower

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bar on the side of the rear sight, and along the longitudinal cutting edge of the lower bar returns to the drive unit, where, by turning the roller 5, runs onto the drive sprocket 4-. Thus, horizontal bars 7 and 8 allow cutting the coal from the soil and from the roof, leaving it welded with the whole. This kind of preparation makes sense when the coal seam is strongly spas n with the roof (dryness) and when coal simultaneously has the ability to split off completely from the pillar with the formation of a relatively flat wall (cleavage). If, when using such a device, there is a need for a piece and from the rear sight, it can be carried out by a vertical rod 11, which can be installed between two asterisks placed at the tips of both bars. There is a similar trimming scheme in front of the ring bar because bar 11 can be used to make a narrower cutting slit.

The drive unit refers to the motor 1, which drives the entire device through the gearbox 2, by means of an asterisk 4. The guide rollers 5-5 deflect the cutting chain 9 in the right direction, which, according to the chute 10, carries out the notch pin 3 to the conveyor. The described cutting device serves for preliminary preparation of the coal (trimming it) for further crushing with the help of one or other breaker devices. Preparation of coal by cutting depends on its mechanical properties and structure, and on

the nature of its cleavage with the whole and surrounding rocks.

The subject matter of the invention.

Mountain to mbayn with two horizontal parallel bars and a vertical cutting rod, characterized in that, for the purpose of cutting the coal at the night and at the roof, both horizontal bars, upper 7 and lower 8, are equipped with one cutting chain 9, bent in two directions and the envelope in successively the rollers of the upper bar 7, and then the lower bar 8.

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