Take overspeed device tensioner's belt conveyor

The utility model discloses a take overspeed device tensioner's belt conveyor, it includes support, a plurality of bracing piece, motor, belt and an overspeed device tensioner. The bracing piece is fixed the below of support, the both ends of support are equipped with the pivot, are equipped with the gear in this pivot, the belt cover is in on the gear, the motor is fixed the side of support, the output shaft of this motor extremely the pivot. Overspeed device tensioner includes adjusting screw, slider and bearing, and this adjusting screw rotationally fixes on the support, the mobilizable setting of slider is in on the support, be equipped with the screw hole on this slider, adjusting screw inserts in this screw hole, the bearing is fixed in the slider, the pivot is inserted in this bearing. But rotate screw rod adjust the slider's position, and then change belt tensioning degree, convenient operation. Adjusting screw slides simple structure along the support at locating plate internal rotation, slider under the guide of extension.