Differential memory coal cutting method and system for coal cutter

Abstract

The invention discloses a differential memory coal cutting method and system for a coal cutter. The differential memory coal cutting method comprises the steps that a current inclination angle value of a rocker arm of the coal cutter and a current pitching angle value of the coal cutter are obtained, the current dinting amount of a following roller of the coal cutter and an influence value of the current posture of the coal cutter on the following roller are calculated respectively, and the further calculation is carried out to obtain an adjustment value; and the coal cutter is controlled by using the obtained adjustment value as a parameter so as to adjust the dinting quantity of the following roller. According to the differential memory coal cutting method and system for the coal cutter, cutting parameters can be automatically stored and applied to subsequent cutting operation, the cutting parameters are automatically adjusted along with changes of a working face, a memory cutting mode does not need to be quitted, good adaptability is achieved for different cutting faces and complex working face conditions, and the coal cutting effect is improved. The coal cutting efficiency and the overall productivity are improved.

Description

technical field [0001] The invention belongs to the technical field of coal cutting, and in particular relates to a method and system for coal cutting with differentiated memory of a coal mining machine. Background technique [0002] Since traditional memory coal cutting requires manual teaching, the learning mode must be selected before inputting, and the shearer is operated manually. The controller records the running speed and direction of the shearer based on the current actual position, as well as the front and rear drum cutting. Angle, select the operation mode after learning, the controller calls the coal machine operating parameters stored in the learning mode, and automatically performs the operation direction, speed and cutting angle of the front and rear drums of the coal machine. This method has the following defects: manual operation demonstration is required before putting into operation, so that the system can record the demonstration parameters, which takes u...

AI Technical Summary

Problems solved by technology

This method has the following defects: manual operation demonstration is required before putting into operation, so that the system can record the demonstration parameters, which takes up a lot of production time and affects the overall output to a certain extent; the traditional memory cutting coal, after putting into the memory cutting, the speed of the coal machine , direction, and front and rear roller angles call the data records stored by the demonstration knife, each knife runs according to the demonstration knife, and cannot be automatically adjusted. In the case of changes in the working surface, the automatic coal cutting may not be applicable and the memory coal cutting mode must be exited. It is considered to be manually adjusted; because after the automatic coal cutting is put into operation, the parameters of the system operation are the parameters stored by the demonstration knife, and the operation of the coal machine adopts a repetitive mode. If there is a mistake, it will continue to repeat, which is not conducive to the increase of production capacity.

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