Drilling drive unit for propelling drill pipe, comprises drill pipe, adjustable between release position, in which fuse element is at distance from drill pipe, where drill pipe is positively contacted form-fit by fuse element

摘要

The drilling drive unit (30) comprises a safety device (50) is arranged additional to the plug-in connection mechanism, with a fuse element arranged radially adjustable to a drill pipe (70). The drill pipe is adjustable between a release position, in which the fuse element is at a distance from the drill pipe, and a safeguard position by using an operating unit. The drill pipe is positively contacted form-fit by a fuse element for axial safety. Independent claims are also included for the following: (1) a drilling equipment comprises a rod, at which a drilling drive unit is adjustably arranged (2) a drilling pipe element e.g. drilling screw element with a final range which is formed as a part of a torque proof plug-and-socket connection (3) a drilling method for manufacturing a drilling with drill pipes.