Radial Conductive Magnetic Core Cake Forming Machine

Abstract

A radial magnet conducting iron core cake forming machine is composed of a machine frame, a rotating tray and a forming assembly. The forming assembly comprises a bearing plate, an outer ring, a central fixed circular pipe, a plurality of subarea partition plates and a steel wire rope ring. The bearing plate is placed on the rotating tray through a mortise and a tenon, and the edge of the bearing plate is provided with a protruding ring and concave-shaped grooves of the protruding ring; the subarea partition plates are vertically positioned on the plate surface of the bearing plate in the radial height direction; grooves in opposite directions are formed in the outer ring; two ends of the steel wire rope ring are linked with mechanical power arms respectively, and the central fixed circular pipe is vertically arranged in the middle of the plate surface of the bearing plate. When the radial magnet conducting iron core cake forming machine is used for manufacturing iron core cakes, the radial magnet conducting iron core cake forming machine has the advantages of being time-saving, labor-saving, high-efficiency, and low in cost. Products have the obvious characteristics of being high in laminated coefficient and high in effective magnet conducting cross section. According to practical experience, the phenomenon of inter-plate vibration and the phenomenon of making electromagnetic noise can not occur even when an electric reactor device which is formed by the iron core cakes is influenced by electromagnetic force in the alternating magnetic field.

Description

【Technical field】 [0001] The invention belongs to a radially conductive core cake forming machine. 【Background technique】 [0002] figure 1 It shows the cross-sectional structure of a radial iron core cake, which is composed of 16 groups of magnetically conductive silicon steel sheets, and each group of magnetically conductive silicon steel sheet materials decreases in turn from the longest piece b to the shortest piece c, and all the pieces The material is highly extruded radially. Before the present invention was made, the sheets were manually inserted into the prefabricated casting and curing mold in sequence, and then the resin filler was cast and solidified to form. This radial iron core cake has the following problems: 1. The production is time-consuming, laborious and inefficient, and each iron core cake needs to be equipped with a casting and curing mold, which is costly. 2. Due to relying on manual insertion, there is no external force in the radial direction. Th...

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Problems solved by technology

This radial iron core cake has the following problems: 1. The production is time-consuming, laborious and inefficient, and each iron core cake needs to be equipped with a casting and curing mold, which is costly

2. Due to relying on manual insertion, there is no external force in the radial direction. Therefore, the sheets are relatively loose, and can only be filled and solidified by resin fillers, which cannot achieve the lamination coefficient required by the design, and the effective magnetic cross section is low.

3. During the operation of the reactor made of this iron core cake, due to the inconsistent expansion coefficients of the silicon steel sheet and the resin filler, cracks will appear in the resin filler after the temperature rises, which seriously affects the reliable operation of the equipment.

4. From figure 1 It can be seen that first, only the longest piece b is arranged radially with the center hole a as the center, while other silicon steel sheets have an off-angle relative to the center hole a, that is, the same as figure 2 There is a deflection angle in the amplitude magnetic field lines, so there is a defect that the amplitude magnetic force lines pass through the silicon steel sheet to generate eddy current loss

The second is that on the outer circumference, the outer end surface of each piece of material does not form a perfect circle, which is uneven, so that the pieces cannot be compressed tightly, so that the equipment is affected by the fundamental wave of the alternating current in the alternating magnetic field, and the pieces are prone to vibration. , while emitting electromagnetic noise

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