Reduction gearbox of split type coal mining machine rocker arm and split type coal mining machine rocker arm mounting structure

Abstract

The invention relates to a reduction gearbox of a split type coal mining machine rocker arm and a split type coal mining machine rocker arm mounting structure. The reduction gearbox comprises a shell, a transmission mechanism and a transmission shaft, wherein a high-speed shaft assembly, an idle wheel assembly and a low-speed shaft assembly of the transmission mechanism are all mounted on the shell; a first positioning spigot structure and a second positioning spigot structure are arranged on a large surface of a coal wall side of the shell; one end, close to a goaf side, of the transmission shaft is coaxially connected with the low-speed shaft assembly; one end, close to the coal wall side, of the transmission shaft is a power output end; the rocker arm mounting structure comprises a coal mining machine body large shell, a motor, an arm frame and the rocker arm reduction gearbox; the reduction gearbox shell is positioned and mounted on the machine body large shell through the second positioning spigot structure; the motor is positioned and mounted on the reduction gearbox shell through the first positioning spigot structure; an output shaft of the motor is connected with the high-speed shaft assembly through a flexible shaft; the arm frame is located on the coal wall side of the machine body large shell; and a power input end of the arm frame is in spline connection with the transmission shaft. The reduction gearbox of the split type coal mining machine rocker arm and the split type coal mining machine rocker arm mounting structure are used on a single-roller coal mining machine; a cutting motor is more convenient and safer to detach and mount.

Description

technical field [0001] The invention relates to a reduction box of a rocker arm of a coal shearer and an installation structure of the rocker arm of a coal shearer, and is especially suitable for a single-drum shearer. Background technique [0002] The traditional single-drum shearer adopts an integral rocker arm, that is, the cutting motor and the reduction transmission mechanism are all arranged in the rocker arm shell. Most of the rocker arm is located on the coal wall side of the shearer body, and the cutting motor can only be disassembled from the coal wall side of the shearer body. The disassembly and assembly of some gears is also very inconvenient, and it is more likely to cause production problems. Safety issues, and the overhanging size of the rocker arm to the side of the coal wall is large, so that the center of gravity of the shearer is more inclined to the side of the coal wall, which affects the stability of the shearer. Contents of the invention [0003] T...

AI Technical Summary

Problems solved by technology

Most of the rocker arm is located on the coal wall side of the shearer body, and the cutting motor can only be disassembled from the coal wall side of the shearer body. The disassembly and assembly of some gears is also very inconvenient, and it is more likely to cause production problems. Safety issues, and the overhanging size of the rocker arm to the side of the coal wall is large, so that the center of gravity of the shearer is more inclined to the side of the coal wall, which affects the stability of the shearer

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