Screw device for high-adjusting a track span

摘要

The invention relates to a screw device for high-adjusting and aligning rails on a track infrastructure comprising a transversal cantilever beam which clamps the rail on the underside and is fixed to a long nut ( 4 ) which is variably high guided along a high-adjusting screw ( 3 ). The inventive screw device is characterised in that the transversal cantilever beam is embodied in the form of a horizontal screw plate ( 7 ) which is pivotally arranged around a horizontal axis ( 20 ) on the long nut and on which a truck provided with a clamp fixing device ( 10,11 ) for a rail base can perpendicularly move with respect to the high-adjusting screw with the aid of a second screw device ( 14,16,17 ).