Conducting magnet core cake rolling machine of electric reactor

Abstract

The invention relates to a conducting magnet core cake rolling machine of an electric reactor, which comprises a frame, an upper jig, a lower jig, a tension device and a bandage disk, wherein the upper jig and the lower jig are arranged on the frame; the upper jig and the lower jig are in a shrinkable flat nose plier structure and are respectively fastened on the shaft ends of a drive rotating shaft and a driven rotating shaft; the drive rotating shaft and the driven rotating shaft are concentrically arranged in opposite, and a containing space is arranged between the opposite surfaces of the upper jig and the lower jig; the tension device and the bandage disk are sequentially arranged on one side of the frame , on which the jigs are arranged; and the containing space, the tension surface of the tension device and a bandage groove of the bandage disk are in a horizontal line. The invention can directly carry out machine rolling on a silicon steel sheet cake before resin soaking by a weftless tape, and the weftless tape really plays a role of fastening, thereby laying the foundation for producing a high-quality iron core cake.

Description

【Technical field】 [0001] The invention belongs to a pressing machine for making a reactor conductive core cake by means of pressing. 【Background technique】 [0002] The traditional method of making reactor core cakes generally adopts the core-piercing screw clamping and resin-dipping curing molding process: first punch a through hole in the middle of each cut silicon steel sheet, and then use a screw covered with an insulating layer to seal the core cake. All the silicon steel sheets are strung together, and then the two ends of the screw are clamped and fixed with nuts to make a core cake blank, which is impregnated with fat and solidified to form an iron core cake. The defect of this manufacturing process is: after the silicon steel sheet is punched, the hole area occupies the effective magnetic cross section of the silicon steel sheet, which not only reduces the magnetic cross section of the iron core cake, increases the machining loss, but also has too much iron core ins...

AI Technical Summary

Problems solved by technology

The defects of this production process are: after the silicon steel sheet is punched, the hole area occupies the effective magnetic cross section of the silicon steel sheet, which not only reduces the magnetic cross section of the iron core cake, increases the machining loss, but also has more insulation of the iron core. point grounding hazard

The defects that this method exists are: the one, need to reserve a large amount of fat-dipping curing moulds, a core cake is equipped with a fat-dipping curing mold to complete the fat-dipping curing molding process, the manufacturing process is loaded down with trivial details, and the production cost is high; The resin is solidified, and then the non-weft tape is manually bound. The core cake is completely formed by the resin adhesion. The hand-bound non-weft tape essentially only serves as a limit to prevent the core cake from loosening.

Therefore, the reactor products produced by this process are difficult to resist the repulsive force generated between the silicon steel sheets due to the inrush current during use, resulting in loosening between the silicon steel sheets and making noise, which will directly affect the safety of the product in severe cases operation, causing personal injury to operators and seriously polluting the environment

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