COUPLING Russian patent published in 2012 - IPC F16D25/12 

FIELD: machine building.

SUBSTANCE: coupling includes housing that consists of cylinder with flanges on ends and connected to it input and output covers. In the central hole of input cover there fixed is a coupling position stabiliser that is connected to air pipe-line. Inside the housing there is an internal part of hollow rod with piston fixed on it. Input cover with fixed levers has central hole with sealing for passing of hollow rod external part. At the external part of hollow rod there fixed is a disk with slots on the periphery, with annular recess in the hub and projections closed by partition from gas permeable material. The cavity formed between disk and partition is connected to internal cavity of the rod via hole in annular recess wall and hole in hollow rod wall. The end of external part of hollow rod is made in a form of external cone contacting the internal cone made in the bush fixed in the cage at pneumatic unit shaft. Flat end of the bush contacts permeable partition on disk, in the periphery slots of which there inserted are the levers fixed at the input cover.

EFFECT: increase of coupling pressurisation, extension of sealing element service life, structure simplification.

3 dwg