TH24481B - Tool for throttling - Google Patents

Abstract

It is provided as a tool for thrusting holes for axial pressure formation. For a long, tapered body that protrudes into a preformed bore in the clay, the tool consists of at least one rotatable body part that is provided with a roller. Many children Each roller can be extending close to the wall of the drilled hole with great force. Make the selected touch between the roller and the wall of the drilled hole. The rollers are aligned when It has been extended up close to the wall of the drill hole to roll along the spiral trajectory on the wall of the drilled hole, and a motor is provided for each rotating body part. Such tools are included as well. Measuring device for measuring axial pressure arising. This is due to the tools and control systems for regulating the axial pressure that arise. The instrument by controlling the rotational torque of the rotating body in response to the measured axial pressure.

Claims (1)

1.Perforated tool for axial pressure impregnation for long body sections A taper that extends into a bore that has been formed into the soil, a tool consisting of at least one rotatable body part, provided with a number of rollers. By roller but Each roller can be extended against the wall of the drill hole with the contact force chosen between the rollers. And the walls of the drilled holes, the rollers are positioned when widened against the wall of the drilled holes. For rolling along the spiral trajectory