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

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and may be used in machining the parts in containers vibrated at low frequency. Proposed unit comprises toroidal working chamber resiliently mounted on bed and composed of sections. The latter are made up of strips bent along straight crease edges, arranged at an angle to strip edges and jointed together. Every section represents a circular sector composed of strip. Different-size quadrangles are formed on said strip. Said quadrangles have two parallel sides made up of crease edges arranged in parallel and equidistantly on the strip. The latter is bent along crease edges and coiled up to make curvilinear seats there inside. Sections are jointed together by free sides of said quadrangles to make, on working chamber inner and outer surfaces, unidirectional helical lines and surfaces with seats of different curvilinear shape and sizes.

EFFECT: ease of manufacture, expanded performances.

9 dwg