Combined component for railway construction

The utility model relates to the technical field of railway engineering, in particular to a combined component for railway construction, which comprises a supporting top plate, a through groove is arranged in the middle of the top surface of the supporting top plate, a moving component is arranged on the top surface of the supporting top plate, and the moving component comprises a sliding rail, a sliding seat, a screw rod, a first motor and a vertical plate. A lifting assembly is installed on the moving assembly and comprises a second motor, a winding wheel, a steel cable and a hook, supporting legs are arranged at the corners of the bottom of the supporting top plate, moving wheels are arranged at the bottoms of the supporting legs, and an iron ring on a sleeper is hooked through the arranged hook. A steel cable is wound through an arranged second motor and a winding wheel, so that the sleepers can be driven to move up and down, a sliding base can be driven to move on a sliding rail through an arranged first