| 摘要 |
<p>The machine comprises a cylindrical envelope (1) consisting of two consecutively mounted head and tail sections (2, 3) interconnected by means of a mechanism (4) for their reciprocal rotation. The reciprocal rotation mechanism (4) consists of a planetary mechanism kinematically connected to a mechanism (16) for moving the tail section and with a rock removing mechanism (25). The head section (2) is provided with a working organ (21) and has a helical blade (22) on its external surface (m). The tail section (3) is provided with an arrangement (23) for preventing its rotation in the rock.</p> |
