| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to concrete mixers and may be used in other fields of construction. Said mixer comprises mixing chamber with material loading and discharge openings, vaned rotor, rotor drive, encased vibrator rigidly secured at mixing chamber center. Said encased bottom and top vibrators excite two equal-amplitude different-frequency vibration fields by top and bottom crank gears. Vibrator casing is composed of metal shell representing a corrugated thin-wall solid of revolution making a complex truncated geometrical figure in vertical plane cross-section formed by central intersection of three circles with centers making the regular triangle vertices and radii equal to height of said triangles. It allows generating opposite direction oscillations. Disc is secured at the said figure center in horizontal plane to create rod translation from translation pair composed of mixing chamber bottom post guide and crank mechanism rod and cylindrical ledge to be fitted and secured at spring ID, said spring being set to be contracted/released in the barrel, while said rod is rigidly secured at inner part top center. Pusher is attached to outer parts centers, opposite ends of said pushers being rigidly secured to inner parts forming smallest crimps of corrugated shells. Said disc can excite vibrations from vibrator casing central part by four pushers with their top part symmetrically secured to disc bottom part and their bottom part articulated with crank mechanism con-rod moving swivel.EFFECT: ruled out dead zones in mixing chamber, intensified mixing of components.2 dwg |
