Vertical tensioning deviation rectifying device and belt conveyor

The utility model discloses a vertical tensioning deviation rectifying device and a belt conveyor. The vertical tensioning deviation rectifying device comprises a foundation frame, a mounting frame, a tensioning frame and a driving assembly. A foundation roller is installed in the center of the foundation frame through the installation frame, tensioning rollers are symmetrically arranged on the two sides of the foundation roller, the tensioning rollers are obliquely arranged, and the tensioning rollers rotate on the tensioning frame; the tensioning frame is installed in a sliding mode, the driving assembly is installed on the foundation frame, the lifting end of the driving assembly is connected to the bottom of the tensioning frame, and the driving assembly drives the tensioning roller to move in the vertical direction. The belt conveyor comprises the vertical tensioning deviation rectifying device. The self-aligning carrier roller solves the problem that in the prior art, a self-aligning carrier roller cann