Transformer coil winding and pressing device

Abstract

The invention discloses a transformer coil winding and pressing device. The device comprises a piston cylinder, wherein a compression spring is arranged in the piston cylinder, the portions, located on the two sides of the compression spring, in the piston cylinder are provided with a piston and a pressing screw rod respectively, a limiting flange is installed on the end face of the piston cylinder, and a limiting step is formed between the limiting flange and the piston; the end face of the piston is connected with a pressing flange through a sunk screw; the portion, stretching out of the piston cylinder, of the pressing screw rod is provided with a force application rod. The device is simple in structure and convenient to operate. As the probation shows, after the device is adopted, the outer diameter of a wound coil changes small, the wound coil is stable in size, the using amount of silicon steel sheets and the using amount of transformer oil are reduced, and the purpose of reducing product cost is achieved. The transformer coil winding and pressing device is low in manufacturing cost and suitable for large-batch manufacturing.

Description

technical field [0001] The invention relates to a device for transformer production, in particular to a device for realizing compression during the coil winding process of a transformer. Background technique [0002] Transformer coils are wound with flat copper wires and round copper wires. No matter what kind of copper wires, the copper wires must be in a tight state during the winding process, otherwise the outer diameter of the coil will exceed the drawing size due to loose winding. , thus occupying too much insulation distance, resulting in insufficient insulation distance, which poses a serious threat to the withstand voltage characteristics of the product. Therefore, special compaction devices are generally used for transformer coil winding. The existing pressing device is composed of a large frame, a pneumatic device, a brake pad, etc., and a special air compressor unit is also required, and the cost is relatively high. In order to save costs, many manufacturers can...

AI Technical Summary

Problems solved by technology

In order to save costs, many manufacturers can only adopt a simple method to increase the insulation distance margin in the design to compensate for the adverse effects caused by the possible increase of the coil, but this increases the material cost and is not conducive to quality control.

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