DEVICE FOR HYDRAULICALLY ADJUSTING THE ROLLERS OF STRAND GUIDING SEGMENTS OF A CONTINUOUS CASTING INSTALLATION

摘要

The invention relates to a device for hydraulically adjusting components, especially the rollers of strand guiding segments of a continuous casting installation with hydraulic cylinders (2) which are subdivided into a cylind er chamber (9) and an annular cylinder chamber (11) by each one piston (12) comprising a piston rod (13). The cylinder chambers (9, 11) can be alternatively, reciprocally and simultaneously connected to a pressure sourc e (7) and to a pressure sink (5) by control elements. The disadvantages of pri or art continuous valves used as control elements, primarily their high level o f sensitivity with regard to cleanness and lubricity of the working fluid, are avoided in that control valves are provided as control elements. Said contro l valves are non-sensitive with regard to cleanness and to the use of an oil-i n- water emulsion used as a working fluid.