Samson Aktiengesellschaft

Hartmut Hirt

Wilfried Gerk

Gerhard Klee

Dieter Eysel

The invention involves a tool head , which can be rotated around an axis of rotation , with a tool-holding fixture for a tool having a cutting edge and with equipment for adjustment of the radial position of the tool cutting edge with regard to the axis of rotation . The invention distinguishes itself by the fact that the tool-holding fixture is divided up into a base element , which is supported in a first bearing system in a carrier sleeve so as to be able to rotate around the axis of rotation , and a tool-holding element , which is supported in a second bearing system in the carrier sleeve so as to be able to rotate around an eccentric axis that is positioned in an eccentric fashion, as well as in parallel to, the axis of rotation

Tool head

A pressure controlled cutter bit or drill bit retainer in the form of a revolving drill head with hydraulic precision adjustment of the drill bit arranged at a central extension, which is displaceable from its original position by small amounts around a pivot axis by a pressure motor, wherein this displacement occurs without any parts mechanically rubbing against each other and the dimensioning of the pressure motor and extension defining the transmission ratio conditions are selected in such a way that the travel of the drill bit guided along a curved path is greater than the travel of the pressure motor output produced by volume change, and wherein the overall volume of the pressure motor is selected to be slightly greater than the volume required for moving the pressure motor output.

Pressure controlled cutter bit retainer with precision adjustable cutter

A cutting chisel holder which is controlled by pressure and constructed as a rotary drill head which can be precisely adjusted by hydraulic means has a cutting chisel, which can be clamped in, with a base and a driven member which is movable relative to the base, and has a pressure chamber arranged between the base and driven member, as well as a pressure medium feed. The driven member moves parallel to itself under the influence of the pressure medium and, in doing so, causes a movement of the cutting chisel on a curved path extending approximately vertically to the axis of rotation of the drill head by parts acting mechanically without friction.

Rotating drill head with a boring bar which is pivotable by a slight

A fine adjustment device for turning tool bits in the form of a pneumatic/hydraulic converter for converting of control signals into proportional actuating or adjusting forces with a combination of an oil pump and pneumatically controlled overflow valve, whose outlet pressure is adjustable with the help of control air.

Growing community of inventors

Konigstein, Germany

Hartmut Hirt