Mechanical device for positioning drill hole in soil, has drilling rod, at which drilling tool with cutting coil is arranged, and has drill drive unit for driving drilling tool with drilling rod around drilling axis
摘要
<p>The mechanical device has a drilling rod (7), at which a drilling tool (10) with a cutting coil (11) is arranged, and has a drill drive unit (2) for driving the drilling tool with the drilling rod around a drilling axis (9). The drilling tool is supported at the drilling rod in an axially moving manner and is moved along the drilling rod by a tool lifting unit. The tool lifting unit is connected with the drilling rod.</p>
