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Constant pressing device for drying transformer windings

A technology of transformer winding and constant voltage device, which is applied in coil manufacturing and other directions, can solve the problems of high price, time-consuming and laborious, complex equipment structure, etc., and achieve the effects of simple and convenient clamping operation, low device cost, and reliable compression.

Active Publication Date: 2013-10-30
CHONGQING NARI BORUI TRANSFORMER CO LTD
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  • Abstract
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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 the drawings.

[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 tie rods 3, a force transmission frame 7 and four tripods 9. The upper and lower pressure plates 1, 4 are circular discs. The force transmission frame 7 is a cross. Four first hinge plates 8 arranged in a cross are welded in the center of the force transmission frame 7. The four first hinge plates 8 are located in the plane where the force transmission frame 7 is located. The force frame is at an angle of 45°. A roller 10 is installed at the outer end of the tripod 9, and the 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 hinge plates 11 are welded on the bottom surface of the lower pressur...

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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 of transformer windings in a vacuum drying process. Background technique [0002] In the vacuum drying process of the transformer winding, a constant pressing force must be applied to the winding to improve the mechanical strength and geometric stability of the winding, enhance the short-circuit resistance of the winding, and at the same time, avoid the use of the winding after the vacuum drying. The process of pressing the windings by the 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 device is complex in structure, bulky, and 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 troubles...

Claims

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Application Information

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Patent Type & Authority Patents(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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