Power drive device of coal winning machine cutting part

Abstract

The invention discloses a power drive device of a coal winning machine cutting part. The power drive device comprises a power source module arranged at the end part of a rocker arm and a speed reducing module arranged in a roller, wherein the power source module comprises a motor and a dynamic coupling wheel train, the motor is connected with a frequency converter by virtue of a cable; the dynamic coupling wheel train comprises a drive gear, an idle pulley and a drive gear ring; the drive gear is positioned at the inner side of the drive gear ring and fixedly sleeves an output shaft of the motor; the speed reducing module is a planetary gear train and comprises a sun wheel, a planetary gear, a planetary carrier and a speed reducing gear ring, wherein the sun wheel fixedly sleeves a drive shaft, and the speed reducing gear ring is fixedly connected with the roller. According to the power drive device, a drive chain is shortened, short-range and high-efficiency transmission of power is realized, the adaptability of a coal winning machine to a varied coal bed is improved, and a coal winning machine drive system is high in modularized degree, and convenient to assemble and maintain.

Description

technical field [0001] The invention belongs to the technical field of construction machinery and relates to a coal shearer, in particular to a power transmission device for a cutting part of the coal shearer. Background technique [0002] At present, the known power transmission device of the cutting part of the shearer is composed of a cutting motor, an idler transmission chain and a planetary reduction mechanism. The motor is installed at one end of the rocker arm close to the fuselage. The mechanism is output by the planet carrier to drive the roller to rotate. [0003] The power transmission route of the motor is long, and during the power transmission process, the power consumed due to the mechanical meshing of the gears increases, thereby reducing the overall efficiency of the transmission system. During the working process of the shearer, the coal quality is not uniform, and the cutting load changes frequently, causing torsional vibration of the transmission system,...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of long power transmission lines, low system efficiency, poor adaptability to changing coal seams and low modularization degree of the transmission system in the prior art, the present invention provides a shearer with high transmission efficiency, good adaptability to changing coal seams, Power transmission device of cutting section of coal shearer with high degree of modularization

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