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Constant pressing device for drying transformer windings

A transformer winding and constant voltage device technology, applied in coil manufacturing, etc., can solve problems such as expensive, time-consuming and laborious, and complex equipment structure, and achieve the effects of simple and convenient clamping operation, low device cost, and simple structure

Active Publication Date: 2012-10-03
CHONGQING NARI BORUI TRANSFORMER CO LTD
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AI Technical Summary

Problems solved by technology

[0003] At present, the compression device used in the vacuum drying process of the winding is a hydraulic device. Although the hydraulic device can apply a constant compression force to the winding, the structure of the device is complex, bulky, expensive, and requires maintenance. The production cost of the transformer winding is reduced, and the clamping operation of the winding on the hydraulic equipment is very troublesome, time-consuming and laborious

Method used

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  • Constant pressing device for drying transformer windings
  • Constant pressing device for drying transformer windings
  • Constant pressing device for drying transformer windings

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing.

[0020] Such as Figure 1 to Figure 8 As shown, the transformer winding drying constant voltage device includes an upper pressure plate 1, a lower pressure plate 4, four pull rods 3, a force transmission frame 7 and four legs 9, and the upper and lower pressure plates 1 and 4 are circular discs body, the force transmission frame 7 is a cross, and four first hinged plates 8 arranged in a cross are welded at the center of the force transmission frame 7, and the four first hinge plates 8 are located in the plane where the force transmission frame 7 is located. Power frame 7 becomes 45 ° of angles. The outer end of the tripod 9 is equipped with a roller 10, and its inner end is hinged with the force transmission frame 7 through the first hinge plate 8, so that the tripod 9 is evenly arranged on the force transmission frame 7. Four second hinged plates 11 are welded on the bott...

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PUM

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Abstract

The invention discloses a constant pressing device for drying transformer windings. The constant pressing device comprises an upper pressing disc, a lower pressing disc, pull rods, a force transmitting frame and at least three tripods, wherein rolling wheels are mounted at the outer ends of the tripods, and the inner ends of the tripods are simultaneously hinged with the force transmitting frame and the lower pressing disc; the tripods and the force transmitting frame are positioned right below the lower pressing disc; the outer end of the force transmitting frame is sleeved at the lower ends of the pull rods; and the upper pressing disc positioned right above the upper pressing disc is sleeved at the upper ends of the pull rods. The pressing device can exert a continuous and constant pressing force to the windings when the transformer windings are subject to vacuum drying.

Description

technical field [0001] The invention relates to a device for compressing windings in a vacuum drying process of transformer windings. Background technique [0002] During the vacuum drying process of transformer windings, a constant compressive force must be applied to the windings to improve the mechanical strength and geometric stability of the windings, and enhance the short-circuit resistance of the windings. At the same time, it can avoid the use of windings after vacuum drying. The process of pressing the winding with a press to improve production efficiency. [0003] At present, the compression device used in the vacuum drying process of the winding is a hydraulic device. Although the hydraulic device can apply a constant compression force to the winding, the structure of the device is complex, bulky, expensive, and requires maintenance. The production cost of the transformer winding is increased, and the clamping operation of the winding on the hydraulic equipment i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/04
Inventor 孙江刘朝宏刘峰
Owner CHONGQING NARI BORUI TRANSFORMER CO LTD
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