VIBRATION PLANT WITH SOUND SUPPRESSION Russian patent published in 2012 - IPC B24B31/12 

FIELD: machine building.

SUBSTANCE: invention relates to sound suppression in part surface machining. Vibration plant comprises top movable frame, bottom frame with drive motor secured thereon, struts with dampers jointed with top movable frame supporting unbalanced assemblies coupled with motor. Vibration plant is furnished with casing made up of steel carcass covered by top sliding, lateral swinging and top fixed three-layer panels with air inlet channel and oval opening to receive motor shaft. Motor is provided with casing made up of base with steel frame, three-layer panels fitted thereon, and covers. Motor casing cover is made from steel frame supporting different diameter arcs made from three-layer panels to form sound absorption channel. Cavities of said top and bottom frames are filled by sound absorbing foamed material. Three-layer panels have outer bearing layer, medium layer from sound-insulation material and inner layer from perforated steel or aluminium sheet.

EFFECT: access to vibration plant assemblies.

2 cl, 8 dwg