He Design and Application of the Self-Adaptive Automatic Control Shearer Drum

Abstract

In order to solve the current situation that under geological change, the shearer cannot self-adaptively adjust to the memory of the cutting track, thereby reducing the efficiency of the coal shearer, an adaptive 3D fine geologic model based on the method of complex geological structures is proposed. In the study, a mathematical model of the cutting trajectory of the shearer drum is set up by three coordinate transformations, and the relatively high precision of the cutting trajectory of the shearer drum is obtained. Then, the circular coordinate transformation method is used to plan the cutting path of the shearer, and the calculation formula of the adjustment and the angle of the pitch angle for every shearer of the shearer is derived. In the end, according to the requirements of the mining technology of the shearer, the correction method of the theoretical planning path of the shearer based on the interpolation algorithm and the cyclic coordinate transformation algorithm is put forward. The research shows that the method proposed in this paper can not only adapt to complicated geological structures such as folds, but it also can achieve greater recovery rate.