Drilling and planing part of thin coal seam drilling and planing combined coal mining machine

Abstract

The invention discloses a drilling and planing part of a thin coal seam drilling and planing combined coal mining machine. Two sets are symmetrically arranged front and back relative to a coal miningmachine fixing box, the two sets of thin coal seam drilling and planing combined coal mining machine drilling and planing parts are installed on the front portion and the rear portion of the coal mining machine fixing box through drilling and planing box shells respectively, each drilling and planing part of the thin coal seam drilling and planing combined coal mining machine comprises a transmission device and a drilling and planing coal mining device, and each drilling and planing coal mining device comprises a hollow drilling part, a crushing drilling part and a coal planing disc part. Thedrilling and planing part of the thin coal seam drilling and planing combined coal mining machine adopts two-stage planetary reduction transmission, and the modes of high-speed stage planetary carrierfloating and low-speed stage sun wheel shaft floating are adopted in the two-stage planetary reduction transmission process, so that the drilling and planing combined coal mining machine is compact in structure, small in size, large in transmission ratio and stable in operation; the mode that drilling and planing combined coal mining is conducted through the drilling and planing coal mining device is adopted, the thin coal seam mining production efficiency can be improved on the premise that the machine body length is effectively shortened, the coal loading effect is improved, the lump coal rate is increased, and the drilling and planing part of the thin coal seam drilling and planing combined coal mining machine is particularly suitable for thin coal seam mining.

Description

technical field [0001] The invention relates to a cutting working part of a coal shearer, in particular to a drilling and planing part suitable for a thin coal seam drilling and planing combined coal shearer, and belongs to the technical field of coal shearers. Background technique [0002] Coal mining machine is one of the important equipment to realize the mechanization and modernization of coal mine production. It is a coal mining machine that uses the working mechanism to break the coal from the coal body (broken coal) and load it into the working face conveyor (coal loading). The machine can walk (tract) according to the set traction speed, so that the coal breaking and coal loading processes can be carried out continuously. [0003] The proven recoverable reserves of thin coal seams less than 1.3m in thickness in the country account for about 20.4% of the total recoverable coal reserves. High labor intensity, many safety accidents, low efficiency and other issues. At...

AI Technical Summary

Problems solved by technology

However, coal pillars need to be kept in the coal drilling interval, and the recovery rate of coal mine resources is low; and the coal drilling rod is long, resulting in slow speed, poor rigidity, easy drill sticking, drilling tool deviation, and low mining efficiency

[0007] Existing equipment suitable for thin coal seam mining can not meet the needs of coal mine production well

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