Deviation-preventing vertical roll assembling tool for belt conveyor

An anti-deviation vertical roll assembly tool for a belt conveyor belongs to the technical field of vertical roll assembly and comprises a positioning component and a welding auxiliary component, the positioning component comprises a limiting sleeve, a supporting spring, a pressing plate and a fastener, the height of the limiting sleeve is equal to that of a vertical roll shell, the supporting spring is mounted in the limiting sleeve, and the pressing plate is mounted on the supporting spring. The supporting spring is provided with a containing space for containing the vertical roll shell, the pressing plate is arranged above the limiting sleeve, and the fastening piece is used for fixing the pressing plate to the limiting sleeve; the welding auxiliary component comprises an electromagnetic speed-regulating motor, an electromagnetic speed-regulating motor controller and an auxiliary shaft, the electromagnetic speed-regulating motor is electrically connected with the electromagnetic speed-regulating motor cont