Lubricant delivering and containment overload shearable coupling

Details Lubricant delivering and containment overload shearable coupling Lubricant delivering and containment overload shearable coupling

1984-08-22

1987-06-02

Levy, Stuart S.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Having lubricating means

For overload release coupling

137 681, 184 64, 403 2, 464 32, F16N 736, F16D 900

Patent

active

046699996

ABSTRACT:
A lubricant delivering coupling adapted to interconnect a power transfer unit and a load having a rotary input. The coupling is comprised of a pair of concentrically disposed inner and outer hollow members. The outer member is in a torque transmitting relationship between the power transfer unit and the load. The inner hollow member is secured at both ends to an inner surface of the outer member and is adapted to receive lubricant from a lubricant source within the transfer device for delivery to and through the hollow inner member.
The inner and outer members each have intermediate the respective ends thereof a shear section. Upon overloading of the outer member and the shearing failure thereof, the inner member continues to twist until rupture at the inner member shear section. The twisting reduces the inner flow area of the inner member to zero, thereby preventing the continued flow of lubricant from the power transfer device through the inner member whereby loss of lubricant in the power transfer device as a consequence of coupling failure is prevented.

REFERENCES:
patent: 3050939 (1962-08-01), Morley
patent: 3200616 (1965-08-01), Hawkins
patent: 3637049 (1972-01-01), Butterfield et al.
patent: 3889489 (1975-06-01), Casey et al.
patent: 3963055 (1976-06-01), DeRosa
patent: 3982408 (1976-09-01), Wright
patent: 4361165 (1982-11-01), Flory

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