| 摘要 |
FIELD: conveyors. ^ SUBSTANCE: invention relates to conveyors, in particular, to roller supports of belt conveyors carrying coal, ore and other materials. The roller support incorporates a central and side rollers with bearings fitted in supports and a load carrying concave belt. The outer surface of each roller is formed by rotation of a portion of a concave arc about the roller rotation axis. The central roller is fitted shifted relative to side rollers along the conveyor at a distance from latter allowing a free rotation and overlapping them at the edges of end faces. The side roller rotation axis inclination angle is set so that, in the conveyor face crosswise projection, the arcs of the surfaces of the side and central rollers form a continuous arc of identical radius. The points of intersection of normals drawn through the centres of bearings of the central roller and lower bearings of the side rollers are aligned with the axes of rotation of these rollers in the front crosswise projection of the conveyor. ^ EFFECT: longer life of the conveyor. ^ 2 dwg. |
