SAFETY COUPLING Russian patent published in 2014 - IPC F16D7/04 

FIELD: machine building.

SUBSTANCE: safety coupling comprises a casing, two cam half-couplings, the driven half-coupling is spring-loaded and can move along the splines in axial direction. The back side of the driven cam half-coupling is conical and can interact with the conical hole provided in the coupling casing. The driving half-coupling is installed on an axis with the possibility of free rotation and is kinematically coupled with it by a torsion spring, additionally a rectangular case extending in a telescopic manner is attached to its centre, and it axis is fitted by a wedge key consisting of a rod with a crosspiece set at its end, the crosspiece dimensions are less than the dimensions of the case hole. A flange is provided around the neck of the case hole. A spring is installed between the flange and the driving cam half-coupling and the compression force of this spring is greater than the compression force of the spring installed on the driven half-coupling, a thrust bearing is set on the latter and can interact with the flange of the rectangular case.

EFFECT: enhanced operating reliability of a safety coupling.

2 dwg