CONVEYOR TROUGH SECTION Russian patent published in 2007 - IPC B65G19/28 E21F13/08 

FIELD: mining industry; face and drift conveyors.

SUBSTANCE: proposed section contains lower run 2 and upper run 3 for driving chain scrapers, welded frame structure 1 with interconnected sides, transport bottom 8 and connecting appliances 60. according to invention, sides consists of mirror turned-over solid rolled sections 10 of asymmetric form constant along length of section. Sections 10 are turned outwards and they include lower and upper shelves and raised intermediate shelf connecting lower and upper shelves and provided with bend on which at least one step is made from inner side to support and weld-to at least one intermediate sheet 40A reinforcing rolled sections 10. Transport bottom 8 is welded to two rolled side sections 5 to form replaceable tray 4.

EFFECT: simplified design owing to reduction of number of components, and facilitated manufacture owing to automatic mounting and welding operations.

26 cl, 7 dwg