Cutting part of thin-coal-layer double-connection cutting-loading coal mining machine

Abstract

The invention relates to a thin-coal-layer double-connection cutting-loading cutting part and relates to the field of hard thin-coal-layer coal mining machine. The cutting part comprises a cutting part shell, a cutting motor, a clutch, a gear transmission system and a cutting roller. The cutting motor, the clutch, the gear transmission system and the cutting roller are arranged on the cutting part shell. The cutting motor is connected with the gear transmission system through the clutch. The power of the cutting motor is output to the cutting roller after speed reduction is conducted through the gear transmission system. Integrated cutting-loading of a traditional single cylindrical roller is converted into two rollers which are transversely arranged and used for breaking coal and containing coal respectively. Cutting teeth of a conical roller of the thin-coal-layer double-connection cutting-loading cutting part are concentrated in distribution, the coal breaking capacity of a single cutting tooth is high under the condition of constant power, and a hard coal layer can be effectively cut; the cylindrical roller is good in the coal containing effect, the cutting depth and cutting width of the cylindrical roller are the same as those of the conical roller, the rotation directions are opposite to each other, the cutting strength of the cylindrical roller in secondary cutting can be effectively reduced through cooperation of the cylindrical roller and the conical roller, and waste-free exploitation of the thin coal layer is achieved.

Description

technical field [0001] The invention relates to a double-connected cutting part, in particular to a cutting part of a thin coal seam double-cutting shearer suitable for a hard thin coal seam shearer. Background technique [0002] At present, 19% of coal seams in my country are thin coal seams, but the mining space of thin coal seams is small, the operating conditions are harsh, and the output is low, which is a problem that plagues my country's coal industry. In recent years, with the improvement of the degree of mechanization, the reserves of thick and medium-thick coal seams in my country are decreasing day by day, or even exhausted. Therefore, the research on thin coal seam mining technology must be paid attention to. Drum coal mining is a relatively traditional coal mining technology for mining thin coal seams. The cutting part is the core component of the shearer, and its performance directly affects the cutting ability and economic benefits of the shearer. The thickn...

AI Technical Summary

Problems solved by technology

The thickness of the thin coal seam is usually less than 1.3m, and the hardness of the coal seam is high. The distribution of the traditional cylindrical drum picks is not concentrated, and the cutting ability is weak; and due to the narrow space of the thin coal seam, the shearer body is required to be lower. At the same time, the limit The size of the drum is reduced, resulting in reduced coal production and high costs

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