Rapid cutter conveying device for cutter changing operation of shield tunneling machine

The utility model relates to the technical field of building construction, and discloses a rapid cutter transportation device for shield cutter changing operation, which is characterized in that a pair of outer channel steel rails with inward openings are fixed on two sides above a main frame support, an inner channel steel rail is slidably mounted in each outer channel steel rail, and the notch of each inner channel steel rail faces the groove bottom of the corresponding outer channel steel rail outwards; horizontal channel steel is fixed to the groove bottom of the inner channel steel rail, a reinforcing cross rod is vertically fixed between the outer groove walls of the horizontal channel steel located on the two sides, a horizontal pulley is clamped in the same horizontal channel steel in a sliding mode, a hoisting transverse moving supporting leg is installed on a wheel shaft of the horizontal pulley, and the hoisting transverse moving supporting leg fixedly supports a hoisting horizontal support. The ho