| 摘要 |
Mounted auger ditcher that is arranged as frame, guide pipes, screws in the lower parts of which cutting edges are arranged, with possibility of axial and circular displacement in pipe, drive. Guide pipes are rigidly combined into one skeleton with frame with possibility of axial and angular displacement, and the screws are installed to rotary pipes in which at lower end cuts are provided for milling solid rocks with possibility of axial and circular rotation in direction opposite to that of the auger. At that number of augers is equal to width of the hole with which those are in interaction, besides that at beneath guide pipes are sharpened at acute angle. |
