FIELD: transport.
SUBSTANCE: proposed device comprises belt section reeved on unloading roller and located on support surface. Skids connected with skidding rope are secured on the end of said belt section to interact with support surface. Skidding rope is articulated with winch drum via deflecting block. Idle roller is located parallel to said unloading roller and shifted towards belt conveyor tail part to allow belt section to bend around it. Belt section end is secured on unloading roller articulated with rotation drive. Note that unloading roller and winch drive are coupled by overrunning couplings to run free during belt section back and work travel. Total height of loop formed by unloading and idle rollers at the end of belt section unloading is defined by the following relationship: H≅D+[0.5L(l+πD)-1+3]δ, where H is loop height, D is roller diametre, L is length of subconveyor space overlapped by belt section and forming spillage, l is distance between loading and idle roller axes, δ is belt section thickness.
EFFECT: simplified design, higher reliability.
3 dwg
