PERMANENT CONNECTION Russian patent published in 2011 - IPC F16B7/00 B64G1/22 F16L13/10 

FIELD: machine building.

SUBSTANCE: permanent connection consists of tip in form of bushing with tail piece at one end and face circular slot at another and of tubular element out of composite material fixed in slot of tip by means of glue. In whole length of the tip there are made axial slots forming pairs of leaves each including an internal and external leaves drawn to corresponding surface of the tubular element by means of radial fixing elements; also, the slots divide the tip into sectors. A transit bushing with the tail piece on one end and the face circular slot on another is inserted into the connection; the tail piece of each sector is installed in the circular face slot of the transit bushing with an internal and external gap relative to walls of the slot by means of radial fixture elements; the tail piece slides relative to these elements. The tail piece of each sector can be equipped with a spherical insertion in the point of radial fixture element location.

EFFECT: increased operational stability of design.

2 cl, 5 dwg