Automatic height adjusting drum shearer for coal and rock identification and based on multi-sensor data fusion

Abstract

The invention discloses an automatic height adjusting drum shearer for coal and rock identification and based on multi-sensor data fusion. The automatic height adjusting drum shearer comprises a shearer drum, a cutting motor, a piezoelectric-type acceleration sensor, a drum connecting shaft, a rotation speed and torque sensor, a traction motor, a Hall large current sensor and a microprocessor, thecutting motor is connected with the piezoelectric-type acceleration sensor, the drum connecting shaft is connected with the rotation speed and torque sensor, the traction motor is connected with theHall large current sensor, during cutting of the coal wall by the shearer drum, the piezoelectric-type acceleration sensor collects the vibration signal of a rocker arm, the rotation speed and torquesensor collects the torque signal of the drum, and the Hall high current sensor collects the current signal of the traction motor. According to the automatic height adjusting drum shearer, each sensortransmits the collected signal to the microprocessor in real time, the microprocessor extracts the information characteristics comprehensively and conducts fusion analysis to judge the coal rock interface, the obtained control signal is transmitted to the cutting motor to realize the automatic height adjustment and unmanned control of the drum shearer, and the efficiency of the shearer is effectively improved.

Description

technical field [0001] The invention relates to an automatic height adjustment drum shearer for coal rock identification based on multi-sensor data fusion. Background technique [0002] Coal is the main body of conventional energy in our country, and the coal industry occupies a pivotal position in the entire national economy. The mechanization of coal mining has become a key technology for the coal industry to increase output, increase labor productivity, reduce serious accidents and improve labor conditions. The coal shearer is one of the main equipments of the comprehensive mechanized coal mining face, and the automation of the coal shearer is the central part of the automation of the entire working face. [0003] The automation of the shearer mainly includes two parts: the automatic control of the traction speed and the cutting height of the drum. At present, the traction speed of most shearers at home and abroad has realized manual and automatic control, and the contr...

AI Technical Summary

Problems solved by technology

However, due to the large amount of coal dust produced by the shearer during work, the visibility of the working face is very low, and the machine itself is very noisy, it is actually difficult for the operator to accurately and timely judge the cutting status of the shearer

If it is on the thin coal seam working face, it is inconvenient for the workers to walk, which makes it more difficult for the operator to adjust the height of the drum in time, so the shearer often cuts the rocks of the roof and floor during the working process

The continuous cutting of rock by the shearer will aggravate the wear of the drum pick and the damage of other parts; for high-gas mines, it is easy to generate sparks and cause gas explosions, forming a vicious accident; the cut rocks are mixed into the raw coal, resulting in a decline in the quality of the raw coal; in addition, Improper adjustment of the drum position may also result in too thick top and bottom coal residues, reducing the recovery rate

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