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Power transmission device of cutting part of coal mining machine

A technology for power transmission devices and shearer cutting parts, applied in transmission devices, gear transmission devices, driving devices, etc., can solve the problems of low modularization of the transmission system, poor adaptability to changing coal seams, and long power transmission lines. Achieve the effects of high modularization, improved adaptability and shortened transmission chain

Inactive Publication Date: 2016-08-17
CHONGQING UNIV
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  • Claims
  • Application Information

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

Method used

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  • Power transmission device of cutting part of coal mining machine
  • Power transmission device of cutting part of coal mining machine

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Embodiment Construction

[0021] The core of the present invention is to use a number of low-power motors with adjustable speed to jointly increase the cutting power. The power is transmitted through the power coupling gear train and the decelerating planetary gear train to shorten the transmission chain and realize the short-range and high-efficiency transmission of power. The speed of the motor is controlled by the generator to realize the stepless speed regulation of the cutting drum and improve the adaptability of the shearer to changing coal seams.

[0022] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0023] Such as figure 1 As shown, a power transmission d...

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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 engineering machinery, and relates to a coal shearer, in particular to a power transmission device for a cutting part of a 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, and the motor power is transmitted to the planetary reduction through the idler transmission chain Mechanism and output by the planet carrier to drive the drum to rotate. [0003] The power transmission route of the electric motor is long. During the power transmission process, the power consumed by the mechanical meshing of gears increases, thereby reducing the overall efficiency of the transmission system. During the working process of the shearer, the coal quality is uneven and the cutting load...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C31/02F16H1/32
CPCE21C31/02F16H1/32
Inventor 孙冬野李明舒锐志秦大同刘振军杨阳胡建军胡明辉刘永刚
Owner CHONGQING UNIV
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