Correcting device for movable beam of gate-type bucket wheel machine

The invention discloses a gate-type bucket wheel machine movable beam deviation rectifying device which comprises a controller, limiting switches, a first frequency converter and a second frequency converter, balance wheels at the two ends of a movable beam are provided with the limiting switches, and the first frequency converter is electrically connected with a first driving motor on the left side of a bucket wheel machine portal. The second frequency converter is electrically connected with a second driving motor on the right side of the bucket wheel machine portal. The first driving motor and the second driving motor are used for controlling lifting of the movable beam. The limiting switch, the first frequency converter and the second frequency converter are all electrically connected with the controller, and the controller is electrically connected with a control system of the bucket wheel machine. The limiting switches comprise the first limiting switch and the second limiting switch, and the first limi