Compaction technology and compaction device for iron core of electric reactor

Abstract

The invention discloses compaction technology and a compaction device for an iron core of an electric reactor. Firstly, a screw which is fixed on a lower yoke and passes through a coil and an upper yoke is firmly screwed by a nut; a pressure transfer device passes through the screw until the pressure transfer device contacts the upper yoke; a lower platen is arranged on the pressure transfer device through the screw, and is at least provided with two guide posts, and the guide posts are symmetrically arranged relative to the screw or are evenly arranged along the periphery of the screw; each guide post is provided with a small tonnage hollow jack, and the jack is fastened by an upper platen through a transition nut; a hydraulic system of each jack is simultaneously supplied with oil, the jack acts downward, and the nut is firmly screwed when a clearance appears between the nut and the upper yoke; and finally the whole compaction work is finished after the transition nuts, the upper platen, the jacks, the lower platen and the pressure transfer device are orderly removed. The compaction technology and the compaction device flexibly combine the quantity of small jacks according to the needed jack tonnage and the tonnage of the prior small jacks, and have the characteristics of simple structure, low processing cost, and convenient use.

Description

technical field [0001] The invention relates to a reactor iron core pressing process and a pressing device. Background technique [0002] During the compression process of the reactor iron core, in order to control the height of the iron core, it is necessary to use a hollow jack to press the iron yoke on the iron core to tighten the coil after the coil is assembled. Due to the different specifications of the reactor, the pressure applied when tightening the coil is different, so the tonnage of the hollow jack used for tightening the coil is also different. A jack of less than 100 tons is most commonly used to compress the coil, and for a large reactor, a pressure of more than 100 tons will be required, and the tonnage of the equipped jack should be more than 100 tons. However, there are very few manufacturers producing large-tonnage jacks of more than 100 tons on the market. Even if there are, there are no off-the-shelf products. After buying, they may be idle for a long t...

AI Technical Summary

Problems solved by technology

However, there are very few manufacturers producing large-tonnage jacks of more than 100 tons in the market. Even if there are, there are no off-the-shelf products. After buying them, they may be idle for a long time due to infrequent use, which wastes equipment resources.

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