Deep Well High Stress Coal Rock Ladder Roller

Abstract

Disclosed is a deep-well high-stress coal rock stepped drum, comprising a rear cylinder hub (1), a front cylinder hub (2), a spiral blade (3), an end plate (4), nozzles (5) and pick-shaped cutters (6). The end plate (4) is arranged at the joint of the rear cylinder hub (1) and the front cylinder hub (2), the spiral blade (3) connected to the end plate (4) is arranged on the rear cylinder hub (1), a plurality of pick-shaped cutters (6) and nozzles (5) are distributed on the outer edge of the spiral blade (3) and the end plate (4) at intervals, and the pick-shaped cutters (6) in spiral arrangement are fixed on the front cylinder hub (2); and the end plate (4) is provided with an annular water delivery channel (4-5), and is provided with a nozzle water delivery channel (4-3), a wheel hub water delivery channel (4-4) and an end plate blade water delivery channel (4-6) which are in communication with the annular water delivery channel (4-5). With the drum, the mechanical mining problem of deep-well high-stress coal rock is solved, and deep-well high-stress coal rock cutting efficiency is increased in the case that explosion-proof motor power is not greatly increased. The structure uses an explosion-proof motor drive, such that underground explosion-proof requirements can be satisfied, and the shearer drum has a simple and compact structure.

Description

technical field [0001] The invention relates to a pre-cut shearer drum, in particular to a shearer drum suitable for cutting high-stress coal rocks in deep wells. Background technique [0002] The existing shearer drum cuts and breaks the coal rock through the rotation of the pick-shaped pick on the helical blade and the end plate. However, considering the narrow mining space and harsh mining conditions of the actual coal mine, the mining of high-stress coal rock in deep wells During the process, due to the limitation of the working space, the size of the shearer should not be too large, which leads to the limitation of the size of the cutting motor of the shearer, which cannot meet the needs of high-stress coal and rock cutting in deep wells. Therefore, there is an urgent need for a new shearer drum that can cut high-stress coal rocks under a certain power situation. Contents of the invention [0003] Technical problem: The purpose of this invention is to overcome the pr...

AI Technical Summary

Problems solved by technology

[0002] The existing shearer drum cuts and breaks the coal rock through the rotation of the pick-shaped pick on the helical blade and the end plate. However, considering the narrow mining space and harsh mining conditions of the actual coal mine, the mining of high-stress coal rock in deep wells During the process, due to the limitation of the working space, the size of the shearer should not be too large, which leads to the limitation of the size of the cutting motor of the shearer, which cannot meet the needs of high-stress coal and rock cutting in deep wells

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