SMALL-SIZE VIBRATION UNIT FOR PREPARATION OF MORTARS Russian patent published in 2015 - IPC B28C5/48 

FIELD: construction.

SUBSTANCE: vibration unit for preparation of mortars comprises a body installed elastically on a base and equipped with a drive. The body is made as hollow in the form of a square, with a curvilinear helical surface along the inner perimeter in the form of pockets of semicircular shape. The body is made of four hollow sections stiffly connected in turns with each other, which are made in the form of a hollow circular sector with four hollow rectilinear sections. Four sections made in the form of a hollow circular sector are made from a strip, to form quadrangles of different size with two parallel sides in the form of bending lines arranged on the strip at equal distances from each other and in parallel to each other. The strip is rolled into a ring-subsection, along the perimeter of which there are pockets of semicircular shape placed, and subsections are connected to each other by free sides of the specified quadrangles in the form of a hollow circular sector, with formation of helical lines and helical inner surfaces in the form of pockets of semicircular shape directed towards one side at the sharp angle to the axis of the hollow circular sector along the outer and inner surface. Distances between bending lines are equal to each other and are equal to the sum of lengths of perimeters of geometric figures of pockets of inner surfaces. Four hollow rectilinear sections are made at least from one strip bent along straight lines arranged at the angle to the edges of the strip. The strip is rolled into cylindrical turns, to form helical lines along the outer and inner surface, and also helical surfaces of curvilinear shape in the form of pockets of inner surface of semicircular form. Distances between bending lines are equal to each other and are equal to the sum of lengths of perimeters of geometric figures of pockets of inner surfaces.

EFFECT: increased efficiency.

14 dwg