VIBRATORY UNIT WITH WORKING CHAMBER DISPLACEMENT Russian patent published in 2012 - IPC B24B31/73 

FIELD: machine building.

SUBSTANCE: working chamber is resiliently mounted on bed and made up of torus with multistart screw triangular surface and multistart one-way screw lines arranged along torus inner and outer edges. Working chamber is composed of sections, each consisting of circular sector made up of strip. The latter is bent along creases made on strip at equal spacing at angle to strip edges to make different-size quadrangles with two parallel sides arranged on strip alternately and in parallel. Strip is coiled into ring with multiface surface. Said sections are interconnected by free sides of said quadrangles in the form of hollow case to make multistart screw triangular surfaces and multistart one-way screw lines.

EFFECT: higher efficiency of processing, expanded performances.

9 dwg