Iron core fastening structure for reactor with magnetic core

The utility model discloses an iron core compressing device with a magnetic core reactor. The utility model comprises an upper steel pressing beam, a lower steel pressing beam, a disk-shaped spring, a washer, a transverse positioning piece, a screw seat, a pulling threaded rod, a tubule, nuts, pipe nuts and nut caps, wherein, the center of the upper steel pressing beam is provided with a plurality of permeable screw holes except for unthreaded holes; the center of the lower steel pressing beam is also provided with a plurality of permeable unthreaded holes in a vertical direction except for screw holes; except for an unthreaded hole through which the pulling threaded rod can pass, a plurality of permeable unthreaded holes in the vertical direction and the unthreaded holes in a horizontal direction are also arranged on a cylinder of the screw seat, and the unthreaded holes in the horizontal direction are corresponding to and are communicated with the permeable unthreaded holes in the vertical direction; a plurality of permeable unthreaded holes in the horizontal direction are arranged on the circumference of the nut cap tightly near a top cap, and the nut caps and the upper steel pressing beam are fixed by a stop-motion which is composed of an arresting disk, a catch bolt and the nuts. The utility model with simple structure avoids tens of times of interruption maintenance because of looseness in the whole life cycle of products, and saves a good deal of operating costs.