Novel cutting part of thin seam mining machine

Abstract

The invention relates to a novel cutting part of a thin seam mining machine, which comprises a motor, a first-stage straight gear mechanism, a middle planetary gear mechanism, a second-stage straight gear mechanism, a third-stage straight gear mechanism, an output shaft and a roller which are connected in sequence, the motor, the first-stage straight gear mechanism, the middle planetary gear mechanism, the second-stage straight gear mechanism and the third-stage straight gear mechanism are arranged in an inverted S shape, the input end of the second-stage straight gear mechanism is connected with a torque shaft of the middle planetary gear mechanism, and the second-stage straight gear mechanism is connected with the third-stage straight gear mechanism through a long through shaft. The second-stage straight gear mechanism is located on the old Tang side of the cutting part, and a coal discharge port is formed in the opposite side of the second-stage straight gear mechanism; the method has the advantages that the mechanical mining problem of the thin coal seam can be solved; the coal mining efficiency is improved, the labor intensity of workers is reduced, the production cost is reduced, and the safety level and economic benefits of a mine are improved.

Description

technical field [0001] The invention relates to the technical field of coal mine shearers, in particular to a cutting part of a novel thin coal seam shearer. Background technique [0002] my country's thin coal seam resources are widely distributed and rich in reserves. At present, the proven recoverable reserves of thin coal seams in the country account for about 19% of the total coal recoverable reserves. In some areas, thin coal seam reserves account for a large proportion, such as Sichuan Province accounts for 60%, Shandong Province accounts for 54%, Heilongjiang Province accounts for 51%, Guizhou Province accounts for 37%, and other coal-producing provinces such as Henan, Shanxi, Inner Mongolia, Hebei, and Jilin also have rich thin coal seam resources. However, due to factors such as the height of the machine surface and the length of the fuselage of the conventional coal mining machine, mining in the lower limit coal seam cannot be carried out, and mining has to be aban...

AI Technical Summary

Problems solved by technology

Since the planetary mechanism is arranged in the middle of the cutting part, and the third-stage spur gear mechanism is a single output shaft structure, when the shearer drum is undercover, the output shaft of the single output shaft structure falls on the side of the conveyor groove, and the undercover amount Small, unable to adapt to the undulating coal seam working face, there are more triangle coal left in the nose and tail of the machine

In addition, because the shell of the cutting part blocks the coal discharge port on one side of the drum, coal loading is affected, and the rotation of the drum is inwardly rotating. When cutting, coal lumps are thrown towards the middle of the shearer, which may hit the operator and cause safety hazards. ACCIDENT

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