Cutting transmission main body part structure

Abstract

The invention relates to a cutting transmission main body part structure which comprises a fixed reduction gearbox shell, and an oil cylinder, a cutting motor and a preceding-stage cutting transmission mechanism which are positioned in an inner cavity of the fixed reduction gearbox shell; the preceding-stage cutting transmission mechanism comprises a high-speed-stage planetary mechanism, a central gear, a left and a right groups of gear reduction mechanisms which are in transmission connection in sequence; each gear reduction mechanism comprises a first fixed shaft gear transmission mechanism and a second fixed shaft gear transmission mechanism which are connected through a spline; the first fixed shaft gear transmission mechanisms and the second fixed shaft gear transmission mechanisms extend from the middle of the fixed reduction gearbox shell to the left side and the right side according to the power transmission sequence; the second fixed shaft gear transmission mechanisms are located in front of the first fixed shaft gear transmission mechanisms; the oil cylinder is located in front of the second fixed shaft gear transmission mechanisms; and a gap bridge structure installation connector is arranged at the rear end of the fixed reduction gearbox shell. According to the cutting transmission main body part structure, the problems of loading channels and underground transportation can be solved, the transmission mechanism is simple, and the overall layout is beneficial to improvement of the gravity center of a whole coal mining machine.

Description

technical field [0001] The invention relates to a cutting transmission main part structure, which is suitable for coal shearers with a short fuselage and a wide mining range. Background technique [0002] In the mining of thin coal seam lower limit or extremely thin coal seam conditions, in order to improve the adaptability of the cutting swing rocker to the coal seam, the cutting transmission system is usually set to consist of two parts: the fixed part of the short structure with power and the swing part of the output power . On this basis, some designs consider the structure of the loading channel on the side of the drum, and set a part of the fixed part of the transmission above the conveyor trough, which not only affects the coal passing space, but also the front and rear width of the fixed part is too large, which makes it difficult to transport in the mine. The space is limited; some also set the power and main deceleration part on the coal wall side in front of the ...

AI Technical Summary

Problems solved by technology

On this basis, some designs consider the structure of the loading channel on the side of the drum, and set a part of the transmission of the fixed part above the conveyor trough, which not only affects the coal passing space, but also the front and rear width of the fixed part is too large, which makes it difficult to transport in the downhole. The space is limited; some also set the power and main deceleration part on the coal wall side in front of the conveying trough (that is, between the left and right rollers). Although the mining height can be lower, the transmission is relatively complicated, and the center of gravity of the fixed part and the swing part are relatively biased. The coal wall has a certain adverse effect on the operation of the whole machine, especially in the condition of the undercut working face.

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