Telescopic rocker arm, coal shearer and coal mining method of the coal shearer

Abstract

The invention discloses a telescopic rocker arm, a coal mining machine and a coal mining method of the coal mining machine. The telescopic rocker arm is rotationally arranged on the coal mining machine, and comprises a rotating part, a telescopic part and a first coal mining roller. The rotating part is rotationally arranged on one side of the coal mining machine. The telescopic part is arranged on the rotating part in a telescopic mode. The first coal mining roller is installed at one free end of the telescopic part. According to the coal mining machine, through the telescopic function of the telescopic rocker arm, the length of the rocker arm can be adjusted according to different mining demands. By additionally arranging a secondary rocker arm on the telescopic rocker arm of the coal mining machine, the top corner area and the bottom corner area of a tip can be further cut through cooperation of the rotating design of the secondary rocker arm and the telescopic adjustment function of the telescopic rocker arm, small residual triangle coal areas of the top corner area and the bottom corner area can be cut thoroughly, and the tunneling effect is further improved.

Description

technical field [0001] The invention relates to the technical field of coal mining equipment, in particular to a telescopic rocker arm, a coal shearer with the telescopic rocker arm and a coal mining method for coal mining using the coal shearer. Background technique [0002] Coal mining machine is one of the important equipment to realize the mechanization and modernization of coal mine production. Mechanized coal mining can reduce physical labor, improve safety, and achieve the purpose of high output, high efficiency and low consumption. refer to figure 1 , which represents a structural schematic diagram of an existing coal shearer, such as figure 1 As shown, the rocker arms on both sides of the fuselage of the existing coal mining machine are fixed rocker arms, that is, the length of the rocker arms is fixed. For example, in 121 and 110 coal mining methods, the ends on both sides of the coal mining face are tunnel roadways, which provide a certain space. The coal body ...

AI Technical Summary

Problems solved by technology

However, in the N00 construction method, for example, one side end does not have a roadway along the groove, and the existing shearer is limited by the defect of the fixed length of the rocker arm, and the mining space at the end of the side without the roadway along the groove is small. It cannot meet the space requirements of operations such as N00 construction method end cutting, support and grouting, and there are large triangular coal areas in the top corner area and bottom corner area of ​​the end head, which cannot achieve a good roadway forming effect

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