A four-drum shearer with a double-drum cutting section

Abstract

The invention discloses a four-drum shearer adopting a double-drum cutting part, which comprises a right cutting part and a left cutting part with the same structure, a right traction part and a left traction part with the same structure, and a right running part with the same structure And the left walking part, and the middle control box, each of the cutting parts includes two cutting drums, and the two cutting drums are respectively recorded as right-handed cutting drums and left-handed cutting drums, and the right-handed cutting drums The drums and left-handed cutting drums rotate in opposite directions. In the coal shearer adopting the double-drum cutting part provided by the present invention, two drums are arranged on each cutting part, so that the total coal capacity ratio increases; the steering of the two cutting drums is opposite, which can effectively prevent coal The radial projection of the blocks is more conducive to coal loading; the efficiency of coal cutting and coal loading is greatly improved, the utilization rate of the pick is improved, and the life of the whole machine is extended; the whole machine runs smoothly, the coal loading effect is good, and the failure rate is low.

Description

technical field [0001] The invention relates to a coal shearer, in particular to a four-drum shearer with a double-drum cutting section. Background technique [0002] The double-drum thin coal seam shearer has been adopted by various large, medium and small coal mines due to its safety and high efficiency advantages, such as figure 1 The double-drum thin coal seam shearer shown includes the right cutting part a7 and the left cutting part a8 with the same structure, the right traction part a9 and the left traction part a10 with the same structure, the right traveling part a11 and the left traveling part with the same structure part a12, and the middle control box a13, the right travel part a11 and the left travel part a12 are respectively fixedly installed on the sides of the right traction part a9 and the left traction part a10, and the right traction part a9 and the left traction part a10 are respectively docked on On both sides of the middle control box a13, the right cut...

AI Technical Summary

Problems solved by technology

[0003] When this kind of double-drum shearer is used in the mining process of thin or extremely thin coal seams less than or equal to 1.3 meters, problems will appear. Due to the thin average coal seam, the height of the shearer is low, the diameter of the drum is small, and the coal flow Due to the small unloading cross-section and other reasons, the coal loading effect is not good and the amount of floating coal is large, which seriously restricts the further increase of production.

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