SYSTEM FOR CONNECTION OF TWO SHAFTS IN RECIPROCAL MOTION Russian patent published in 2009 - IPC F16B7/04 F16B7/06 F16L25/01 F16D1/00 C25C3/06 C25C3/14 

FIELD: machine building.

SUBSTANCE: invention is related to system of mechanical and electric connection between ends of two substantially coaxial shafts, to equipment of electrolytic cell for electrolytic production of aluminium and to device for piercing and measurement. In system of mechanical and electric connection between ends of two substantially coaxial shafts every end of shaft comprises annular groove next to axial end extension. Mentioned ends are connected inside coupling, comprising the first annular collar, shape of which complements shape of annular groove of the first shaft, the second annular collar, shape of which complements shape of annular groove of the second shaft, cavity intended for installation of mentioned ends of shafts, and axial height of which exceeds sum of axial heights of axial end extensions and in which axial end extensions of both shafts remain in permanent mechanical and electric contact, due to availability of elastic electroconducting facility. Equipment of electrolytic cell for electrolytic production of aluminium comprises mentioned system of mechanical and electric connection between ends of two substantially coaxial shafts. Device for piercing and measurement is intended to measure temperature and level of electrolyte in electrolytic cell bath after piercing of bath hardened surface crust for production of aluminium by means of fire electrolysis of alumina dissolved in mentioned electrolyte. It comprises mentioned system of mechanical and electric connection between ends of two substantially coaxial shafts. At that master shaft is stem of breakdown pneumatic power cylinder, and slave shaft is stem-extender, on which part is installed that is intended for submersion in electrolyte.

EFFECT: provision of wear resistance, reliability of electric contact.

13 cl, 2 dwg