Portal crane becomes rail device built-in fitting

The utility model discloses a portal crane becomes rail device built-in fitting, including setting up the track clamping device on the base, be provided with two mutually perpendicular's movable track bar slot on this track clamping device, two movable track bar slots intersect and be' ten' the font, the outer end of the track bar slot that moves about is connected with the orbit determination way respectively, track clamping device includes two mutually perpendicular's splint subassembly, and the splint subassembly includes two just rail clamps to setting up, and formation activity track bar slot between two rail clamps is equipped with movable track and supports bottom activity track bar slot adopt the utility model discloses an it is to show the effect, two mutually perpendicular's forming through the rail clamp movable track bar slot, for detachable activity track provides the mounted position of two orientations in advance, only need with detachable activity track two ascending grafting in side, can realize becoming the rail, and the movable track of detachable has good stability