Coal rock character identification system and method based on multiple parameters of cutting motors of coal cutter

Abstract

The invention relates to a coal rock character identification method based on multiple parameters of cutting motors of a coal cutter. The coal rock character identification method is achieved by virtue of a coal rock character identification system based on the multiple parameters of the cutting motors of the coal cutter. The coal rock character identification system comprises a large-volume data storage device, an electrical main controller of the coal cutter, an intrinsically safe vibration acceleration sensor, a vibration data transmission cable, a communication data transmission wire and an onboard power supply of the coal cutter. The coal rock character identification method and the coal rock character identification system are achieved in the manners that working parameters consisting of vibration signals, the voltages, currents and temperature torques of left and right cutting motors and a traction motor of the coal cutter, the pressures of left and right rocker arm lifting oil cylinders of the coal cutter as well as speed signals of the traction motor are collected and stored, the signal features of coal and rock cut by cutting teeth of a roller of the coal cutter at different top and base plates are analyzed, the energy features of the vibration signals at different frequency bands are analyzed by virtue of a wavelet packet, the feature distribution of the working parameters of the cutting motors is analyzed by virtue of probability statistic samples, and different coal rock character databases are established by virtue of a multi-sensor information fusion technique.

Description

technical field [0001] The invention relates to an instrument for collecting working state parameters of electromechanical equipment and a method for identifying the load medium of the electromechanical equipment, in particular to a system and method for identifying the properties of cut coal rocks for underground coal mining machines in coal mines. Background technique [0002] Coal mine underground large-scale mining equipment refers to various coal mining machines used in coal mine fully mechanized mining face and various roadheaders used in fully mechanized mining face. It is the most critical large-scale equipment in coal comprehensive mechanized production. [0003] Working underground, the working environment is harsh, the amount of dust is large, the visibility is low, the working space is narrow, and it is easy to deviate from the working direction and cause loss of mechanical equipment, so the requirements for equipment performance are high. Coal production is an i...

AI Technical Summary

Problems solved by technology

[0003] Working underground, the working environment is harsh, the amount of dust is large, the visibility is low, the working space is narrow, it is easy to deviate from the working direction and cause the loss of mechanical equipment, so the requirements for equipment performance are high

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