VIBRATION MACHINE Russian patent published in 1994 - IPC

FIELD: machine tool manufacture. SUBSTANCE: toroidal container has a cylindrical throat with an inner radius equal to the radius of curvature of the container toroidal surface cross section, the toroidal surface is tangentially joined to the throat. A lower unbalance is positioned on the lower stage of an unbalance shaft for resetting and fixing the most lower unbalance on both sides relative to the upper unbalance fixed to the shaft. Two arc hollows for engagement with the lock of the lower unbalance are made on the end of the same lower stage of the unbalance shaft. While working and unloading the direction of rotation of the unbalance shaft remains unchanged. Reversing of the load motion direction in a toroidal bowl of the container is provided by varying the position of the lower unbalance to an opposite one before discharge. A cover is removed from the throat in advance. EFFECT: simplified structure and improved output. 2 cl, 4 dwg