Coal mining device and crushing mechanism thereof

Abstract

The invention discloses a crushing mechanism for a coal mining device, comprising a main body part (1), a power component installed on the main body part (1) and a work component (2) driven by the power component, wherein the power component is used for driving the work component (2) to do the reciprocating straight line motion. In the work process of the crushing mechanism, the straight line motion does not generate a centrifugal force, thereby preventing the crushed coals from flying out in crushing process and guaranteeing the personal safety of the staffs in the tunnel; meanwhile, the coal crushed by the straight line motion is not cut into powders so as to prevent coal dusts from flying in the tunnel and to improve the air quality in the tunnel; in addition, the single motion stroke of the straight line motion is large so as to improve the crushing efficiency of the crushing mechanism. The invention further discloses a coal mining device including the crushing mechanism.

Description

technical field [0001] The invention relates to the technical field of mining equipment, in particular to a crushing mechanism for coal mining equipment. The present invention also relates to a coal mining equipment comprising the above crushing mechanism. Background technique [0002] With the rapid development of my country's economic construction, the coal industry continues to develop in the direction of mechanization and automation, and comprehensive mechanized coal mining equipment is more and more widely used in coal production under various geological conditions. [0003] In the process of comprehensive mechanized coal mining, due to the hardness of the coal seam and the complexity of the structure of the coal seam, the phenomenon of "slabs" often occurs in the coal wall, that is, the phenomenon that the coal wall is deformed, damaged or even shed under the action of mine pressure. , the coal rocks produced by the "flanks" will accumulate on the scraper machine. Whe...

AI Technical Summary

Problems solved by technology

However, since the crushing head of this kind of crushing mechanism rotates during the working process, the centrifugal force on the periphery of the crushing head will be transmitted to the coal rock it cuts, causing the coal rock to fly out, affecting the safety of the surrounding workers; at the same time, the rotary crushing Most of the coal and rocks cut by the head are in the form of powder, and these light powders are more likely to fly out under the action of centrifugal force and external wind, and float in the air of the roadway, affecting the working environment of the roadway and the health of the staff; Moreover, the crushing head is prone to fatigue work during the continuous rotating motion, resulting in a short service life of the crushing mechanism and low working reliability; in addition, due to the rotating motion, the crushing mechanism must be crushed in a small area before continuing downwards. Broken, resulting in lower work efficiency

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