Coal mining machine and supporting device thereof

Abstract

The invention discloses a supporting device of a coal mining machine, and the supporting device comprises a supporting leg connected on a machine body of the coal mining machine and a supporting sliding shoe for supporting the supporting leg, wherein a telescopic sleeve device arranged along the vertical direction and a driving device for driving the supporting leg to move up and down are connected between the supporting leg and the supporting shoe. Based on the arrangement, in the supporting device of the coal mining machine disclosed by the invention, the inclination angle when the machine body of the coal mining machine is in underhand mining or overhead mining can be adjusted, so that the coal mining machine can adapt to a working surface with a coal bed inclination angle. The invention also discloses the coal mining machine comprising the supporting device.

Description

Technical field [0001] The invention relates to the field of engineering machinery, and more specifically to a coal shearer and its supporting device. Background technique [0002] my country's economic construction has achieved rapid development in recent years, and economic development is inseparable from the exploitation and utilization of natural energy. my country's coal resources are particularly rich, so the reasonable exploitation and utilization of coal resources plays a vital role in my country's economic development. The mining methods of coal mines include underground mining and open-pit mining. Shearers are the most commonly used coal mining machinery among the two mining methods. [0003] Please refer to figure 1 with figure 2 , figure 1 Schematic diagram of undercut mining by shearer; figure 2 Schematic diagram of the shearer overhead mining. [0004] The shearer generally includes a shearer body 01 and a supporting device 02. The main body of the coal machine inc...

AI Technical Summary

Problems solved by technology

When down mining, if the angle of down mining is too large, the guide shoe will be seriously worn on the gear rail, the traveling gear will slip on the gear, and the shearer cannot walk; If the angle is too large, the shearer may fall into the support space of the support, and the coal seam is severely sloughed, and the coal pieces that fall directly enter the support, posing a threat to the miner's personal safety. The meshing force of the pin row is very large, which may easily cause the wear and tear of the traveling gear

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