A coil tightening device in the process of transformer production

Abstract

The invention relates to a wire reel tightening device used in the production process of a transformer. The wire reel tightening device comprises a plurality of wire reel tightening units on a rack, wherein the rack is a cuboid framework, and the wire reel tightening units are uniformly distributed at the top and the bottom of the cuboid framework in the long shaft direction of the rack in one-to-one vertical correspondence; each wire reel tightening unit comprises a clamping disc A and a clamping disc B which are matched with each other and respectively supported on the two sides of the long shaft direction of the rack, the clamping disc A can be adjusted by an adjusting rod and is driven to approach or depart from the clamping disc B, and accordingly, a wire reel is axially clamped and supported on a polished rod A and a polished rod B; a clasping mechanism is further arranged on the clamping disc B. The wire reel tightening device has the advantages that the wire reel tightening device ensures coil winding tightness, improves tightening effect and ensures that the coil size meets diagram requirements, and meanwhile, further saves materials, reduces the production cost and reduces transformer load losses.

Description

technical field [0001] The invention relates to the field of transformer manufacturing, in particular to a coil tightening device in the transformer production process. Background technique [0002] Winding reels are mainly used for coil winding in the production process of transformers. Due to the relatively high requirements for transformer winding, it is necessary to have a certain tension on the cables and a relatively stable winding speed in the actual winding process. Make sure the tightness of the wound coil. [0003] Patent No. 201120343079.X mentions a winding reel tightening device, which includes a base and a bracket fixed on the base. The top ends of the bracket are provided with two adjacent small Bearings, grooves are formed between the adjacent small bearings, a horizontal shaft is placed in the groove, a large bearing is fixed at one end of the horizontal shaft, and an iron sheet is arranged outside the large bearing layer, the said iron layer is connected ...

AI Technical Summary

Problems solved by technology

[0004] (1) The tightening device, through the combined action of the iron layer, rubber friction layer and spring, enables the large bearing to control the stable rotation of the horizontal axis, thereby ensuring the tightness of the coil winding. The tightening effect of the device is poor, so that the winding The expansion size of the coil on the iron core is too large, which does not meet the requirements of the drawing; due to poor tightening effect, more wire materials are used, which wastes materials and increases production costs; at the same time, due to the large outer diameter of the coil, the load loss of the transformer increases ;

[0005] (2) The tightening device can only tighten one winding reel at a time, and cannot tighten the winding reels with various specifications of coils wound on the transformer core at the same time, which reduces the winding efficiency; at the same time, if by increasing The tightening device is used to tighten the winding reels of coils of various specifications, which is inconvenient to use

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