FIELD: transport.
SUBSTANCE: conveyor device includes closed-loop conveyor, frame made of three adjacent parts, sprocket installed on the first end-part of frame and driving sprocket installed on the third end-part of frame, the first tension device and the second tension device, supplemental conveyor to which one of the first conveyor parts is attached. The conveyor device is made capable to measure tension in the first conveyor, to control the first tension device and the second tension device for adjustment tension in the first conveyor and control the first tension device and the second tension device to maintain position of driving sprocket relative to reactive sprocket in response to movement of one of the first and the third parts of frame.
EFFECT: possibility of independent adjustment of conveyor ends relative to each side of unworked coal with keeping at the same time proper tension and control of chain.
17 cl, 11 dwg
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Authors
Dates
2014-07-20—Published
2010-04-26—Filed