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Pipe drilling machine, has clamping roller rotated around clamping roller axis and movably supported at clamping roller frame at side such that roller is aligned along running direction of drilling band at different angular positions
Pipe drilling machine, has clamping roller rotated around clamping roller axis and movably supported at clamping roller frame at side such that roller is aligned along running direction of drilling band at different angular positions
The machine has a drilling band (4) guided around a cylindrical shaped exchangeable working roller (6) and a drive roller. A clamping roller is freely rotated around a clamping roller axis. The clamping roller is movably supported at a clamping roller frame at a side such that the clamping roller is aligned along a running direction of the drilling band between the drive roller and the working roller at different angular positions. The clamping roller and the drive roller include a bearing surface that is curved in an inward direction.
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