Resilient support for a high-speed rotor

Claim 1

A resilient support for a high-speed rotor mounted upon a rotor shaft for the spinning mechanism of an open-end spinning machine, said support including a housing for the spinning mechanism, said housing having a generally circular cylindrical passage therethrough, a central sleeve mounted within the passage in the housing coaxial thereof, the rotor shaft being disposed centrally within the central sleeve and coaxial therewith, a double-row rolling bearing for the rotor shaft, said bearing being disposed between the central sleeve and the rotor shaft, the rows of the rolling bearing being spaced substantially from each other along the length of the rotor shaft, resilient damping elements disposed near the respective ends of the central sleeve and between the central sleeve and the housing, the rotor having a hub with a circular cylindrical portion which is disposed within and end of the passage in the housing with a clearance between it and the wall of the portion of the passage through the housing in which it is disposed, annular seats at the opposite ends of the central sleeve receiving the resilient damping elements, the portion of the bore in the central sleeve disposed at the end thereof adjacent to the rotor having a diameter which is the same as the outer diameter of the double-row rolling bearing, the resilient damping elements each having an annular radially inner part and an annular radially outer part, there being an annular radially resilient intermediate part disposed between and bonded to the inner and outer parts of the resilient elements, the resilient damping means being provided with transverse shoulders which abut the end walls of the respective seats in the central sleeve, the housing having end orifices, said shoulders having their diameters reduced by the height of a limiting gap between them and the diameter of the end orifices of the housing of the spinning mechanism.