Tracto-technik Paul Schmidt Spezialmaschinen

Tracto-technik Paul Schmidt Spezialmaschinen Kg

Custom Made Rigs Gmbh

Joachim Schmidt

Alfons Hesse

Dieter Wurm

Klaus Zerbs

A ground drilling device with a wheel undercarriage, comprising wheels and wheel carriers for the wheels, wherein the wheel undercarriage makes possible a towing of the ground drilling device in highway traffic by a towing vehicle, and no tracked undercarriage is present.

Ground drilling device, use of a ground drilling device and method for the movement of a ground drilling device

Method and apparatus for sinking pipes (8) or cables into a pilot borehole (4) by use of a drill string (3) including an expansion drill bit driven to rotate and pull is disclosed. The expansion drill bit is supplied with a wash fluid and is coupled with the pipe or cable (10) to be sunk into the borehole. The pulling force between the expansion drill bit (5) and the pipe or cable is continuously measured and the measurement values are transmitted to a drive for the drill string in real time. The advance speed and/or the advance force and/or the rotational speed and/or the torque and/or the wash fluid quantity and/or the wash fluid viscosity are adjusted as a function of the measurement values to be within predetermined values determined by the load capacity of the pipe (8) or cable.

Method and apparatus for sinking pipes or cables into a pilot borehole

The invention relates to a device for locating percussion boring machines using a transmitter and a receiver which allows the radio transmitter to be connected to the percussion boring machine in a simple manner and preferably without breaking the connection between the compressed air line and the percussion boring machine; which does not hinder the manoeuvrability of the hammer drill; which is less susceptible to mechanical influences during the boring; and which can easily be disassembled. This is achieved by fastening a housing with a receptacle for the transmitter or the receiver on a fluid line.

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Lennestadt, Germany

Joachim Schmidt