| 摘要 |
FIELD: foundry, in particular, sieving of sand and other bulk materials and extraction of metal and nonmetal inclusions from reusable sand mixtures. SUBSTANCE: apparatus has main fixed shaft and adjusting nut which may be rotated to compress or release springs positioned between rods on main shaft and to vary space between rods. Limiter is mounted between cheeks of rotary frame to prevent upward jump and hovering of rod or rotation of rod or group of rods through 180 deg to inoperative position. It may occur in case concentrated loading (stone, metal lump etc) acts upon sieving belt. EFFECT: increased efficiency, reduced readjustment time by simultaneous regulation of space between rods in sieving belt. 2 cl, 5 dwg |
