Chain online pitch abnormity inspection device

The utility model mainly discloses a chain on-line abnormal pitch checking device, which adopts the technical scheme that the chain on-line abnormal pitch checking device comprises a rack, a bedplate, a plurality of guide wheels, a guide mechanism and a detection mechanism, the bedplate is mounted on the upper side of the rack, and the guide wheels are mounted on the bedplate and are positioned at the inlet and outlet ends of the guide mechanism; a guide mechanism for guiding the chain to move is mounted on one side of the chain driving mechanism on the bedplate; and the detection mechanism is positioned above the guide mechanism for cooperative detection. The guide mechanism comprises a bearing, a bearing seat, a second chain wheel and an arc-shaped guide plate, when the chain driving mechanism drives the chain, the chain moves along the second chain wheel, and the arc-shaped guide plate is installed on one side of the second chain wheel and can be attached to the chain at the inlet. When the chain with the