FIELD: machine building.
SUBSTANCE: tensioning device comprises tensioning drum (1) connected with sliders (3), for slide rails (5), pushing screws (8) interacting with slides and screwed into nuts (6, 7). Device is equipped with arms (9) with notches "b", each of which is mounted on respective slide through small shafts (10) being offset relative to longitudinal axis "d" of pushing screws (8) passing through centre of axis of rotation (2) of tensioning drum . Sliders are provided with stops (4) and nuts (6). Pushing screws are provided with a two-sided thread (left and right). Axis of tensioning drum is made with flats "a" and is installed in slots "b" interconnected with help of handle (11) of arms.
EFFECT: enabling fast movement of tensioning drum, its removal and return into initial position without change of tension force of conveyor belt and without using any tools, as well as reduced time of preliminary tension of tape.
1 cl, 5 dwg
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