Study on design of operating mechanism of auger mining machine

To raise the cutting efficiency and percentage of lumps for the auger mining machine, two cutting models (the axial cutting and the radial cutting) were proposed according to the mining technique of the auger mining machine. Picks installed on different positions of the operating mechanism were optimized. The operating mechanism was developed according to the optimized result. For comparison, trials were carried out with the existing operating mechanism of the same model of auger mining machine. The results indicate that the production efficiency and the advance speed of the new operating mechanism are increased, and the axial resistance is reduced in the same conditions as the existing operating mechanism. And the drilled hole is flatness, there are no obvious cross-sections on the wall of the hole, which indicates that the stability of the new operating mechanism is good, and taking full advantage of coal collapsing during cutting with picks. Simultaneously, the percentage of lumps of the new operating mechanism is increased, while wear on the picks is uniform.