A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DRILLING TOOL AND METHOD FOR PRODUCING A BOREHOLE IN THE GROUND
The invention relates to a drilling tool for producing a borehole in the ground, having a rotatably driveable basic body, a removal device at a lower end of the basic body for removing soil material, and at least one adjustable removal element which can be adjusted between a radially inner retracted position and a radially outer widening position, in which the removal element projects radially outwards with respect to the basic body to widen a borehole diameter. According to the invention, there is provision that, to adjust the removal element, there is provided an adjusting mechanism with a rotary member which can be rotated on the basic body so as to be rotatable about the drilling axis between a first rotary position and a second rotary position, that the at least one removal element is arranged on a pivot arm which can be pivoted with respect to the basic body between a first pivoting position, in which the at least one removal element is in its retracted position, and a second pivoting position, in which the at least one removal element is in its widening position, and that an actuating cam is provided on the rotary member and/or on the at least one pivot arm, by means of which actuating cam a rotary movement of the rotary member can be converted into a pivoting movement of the at least one pivot arm.
DRILLING TOOL AND METHOD FOR PRODUCING A BOREHOLE IN THE GROUND
The invention relates to a drilling tool for producing a borehole in the ground, having a rotatably driveable basic body, a removal device at a lower end of the basic body for removing soil material, and at least one adjustable removal element which can be adjusted between a radially inner retracted position and a radially outer widening position, in which the removal element projects radially outwards with respect to the basic body to widen a borehole diameter. According to the invention, there is provision that, to adjust the removal element, there is provided an adjusting mechanism with a rotary member which can be rotated on the basic body so as to be rotatable about the drilling axis between a first rotary position and a second rotary position, that the at least one removal element is arranged on a pivot arm which can be pivoted with respect to the basic body between a first pivoting position, in which the at least one removal element is in its retracted position, and a second pivoting position, in which the at least one removal element is in its widening position, and that an actuating cam is provided on the rotary member and/or on the at least one pivot arm, by means of which actuating cam a rotary movement of the rotary member can be converted into a pivoting movement of the at least one pivot arm.
DRILLING TOOL AND METHOD FOR PRODUCING A BOREHOLE IN THE GROUND
DENK FABIAN (author) / LAUERER ROBERT (author) / STOHL MICHAEL (author)
2024-06-13
Patent
Electronic Resource
English
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