Centering and positioning device for GIS (Gas Insulated Switchgear) bushing and high-voltage bushing

By designing a centering positioning device including a high-pressure casing and a GIS casing, the laser head projected onto a transparent cylinder to determine whether the two are aligned, the problem of lack of intuitive alignment methods in transformer maintenance is solved, and a more intuitive alignment judgment and simple operation effect is achieved.

CN223021264UActive Publication Date: 2025-06-24CHINA YANGTZE POWER
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Patent Information

Application Number
CN202422072875.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2025-06-24
Estimated Expiration
2034-08-26

AI Technical Summary

Technical Problem

During the transformer maintenance process, there is a lack of intuitive methods to observe whether the high-pressure casing is aligned with the GIS casing.

Method used

A centering positioning device including a high-pressure sleeve and a GIS sleeve is designed. By providing a first cross frame and a lower positioning column on the high-pressure sleeve, and a 2nd cross frame and an upper positioning column under the GIS sleeve, a laser head is projected onto the transparent cylinder to determine whether the two are aligned.

Benefits of technology

This device makes it more intuitive to determine whether the high-pressure sleeve and the GIS sleeve are aligned, simple to operate, easy to disassemble and assemble, and has strong practicality.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

A centering and positioning device for a GIS sleeve and a high-voltage sleeve comprises the high-voltage sleeve fixedly connected to a main transformer box and the GIS sleeve arranged in the air, a first cross-shaped frame is arranged at the upper end of the high-voltage sleeve, a lower positioning column is arranged at the center of the first cross-shaped frame, and a transparent cylinder is arranged at the upper end of the lower positioning column; the lower end of the GIS sleeve is provided with a second cross-shaped frame, the center of the second cross-shaped frame is provided with a vertically downward upper positioning column, and the lower end of the upper positioning column is provided with a laser lamp holder. According to the centering and positioning device for the GIS sleeve and the high-voltage sleeve, whether the high-voltage sleeve and the GIS sleeve are aligned or not is judged by projecting laser onto the transparent cylinder, judgment can be made more visually, and the centering and positioning device is easy to operate, convenient to disassemble and assemble and high in practicability.
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Description

Technical Field

[0001] The utility model relates to the technical field of transformer maintenance, in particular to a centering and positioning device for a GIS bushing and a high-voltage bushing. Background Art

[0002] When maintaining a large transformer, the transformer box body needs to be moved out on the guide rail, and after the maintenance is completed, the transformer box body needs to be moved back to the installation position. When moving the main transformer box body back to the installation position, the high-voltage bushing on the main transformer box body needs to be aligned with the GIS bushing in the air, and then installed. In the prior art, alignment is carried out by the naked eye and feeling, lacking an intuitive observation method. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a centering and positioning device for a GIS bushing and a high-voltage bushing, which can observe whether the high-voltage bushing and the GIS bushing are aligned.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a centering and positioning device for a GIS bushing and a high-voltage bushing, including a high-voltage bushing fixedly connected to the main transformer box body and a GIS bushing arranged in the air. A first cross-shaped frame is arranged at the upper end of the high-voltage bushing, a lower positioning column is arranged at the center of the first cross-shaped frame, and a transparent cylinder is arranged at the upper end of the lower positioning column;

[0005] A second cross-shaped frame is arranged at the lower end of the GIS bushing, a vertically downward upper positioning column is arranged at the center of the second cross-shaped frame, and a laser lamp head is arranged at the lower end of the upper positioning column.

[0006] Preferably, the first cross-shaped frame and the second cross-shaped frame are respectively fixedly connected to the flange at the upper end of the high-voltage bushing and the flange at the lower end of the GIS bushing through bolts.

[0007] Preferably, the surface of the first cross-shaped frame is provided with scales.

[0008] Preferably, the upper positioning column is a telescopic column.

[0009] The utility model provides a centering and positioning device for a GIS bushing and a high-voltage bushing, which can more intuitively judge whether the high-voltage bushing and the GIS bushing are aligned by projecting the laser onto the transparent cylinder. The device is simple to operate, convenient to disassemble and assemble, and has strong practicability. Brief Description of the Drawings

[0010] The following further illustrates the utility model in conjunction with the drawings and embodiments:

[0011] Figure 1 is a schematic structural diagram of the utility model;

[0012] Figure 2 For Figure 1 The enlarged structural schematic diagram at position A in

[0013] Figure 3 The bottom view of the present utility model;

[0014] Figure 4 The structural schematic diagram when the present utility model is in use. Specific embodiments

[0015] As Figures 1-3 shown, a centering and positioning device for a GIS bushing and a high-voltage bushing includes a high-voltage bushing 1 fixedly connected to the main transformer box body and a GIS bushing 2 arranged in the air. A first cross-shaped frame 3 is provided at the upper end of the high-voltage bushing 1, a lower positioning column 4 is provided at the center of the first cross-shaped frame 3, and a transparent cylinder 5 is provided at the upper end of the lower positioning column 4;

[0016] A second cross-shaped frame 6 is provided at the lower end of the GIS bushing 2, a vertically downward upper positioning column 7 is provided at the center of the second cross-shaped frame 6, and a laser lamp head 8 is provided at the lower end of the upper positioning column 7. When the light of the laser lamp head enters the transparent cylinder, it means that the centering is successful.

[0017] Preferably, the first cross-shaped frame 3 and the second cross-shaped frame 6 are respectively fixedly connected to the flange at the upper end of the high-voltage bushing 1 and the flange at the lower end of the GIS bushing 2 by bolts.

[0018] Preferably, the surface of the first cross-shaped frame 3 is provided with scales. It is convenient to observe the offset amount.

[0019] Preferably, the upper positioning column 7 is a telescopic column. The telescopic column enables the laser lamp head to be close to the transparent cylinder and can be applicable to high-voltage bushings 1 and GIS bushings 2 with different spacing distances.

[0020] When in use, as Figure 4 shown, after installing this device, move the main transformer box body. When the light beam of the laser lamp head enters the transparent cylinder, the transparent cylinder emits red light, which proves that the centering is completed. If the laser beam does not enter the transparent cylinder, it means that it is not aligned.

[0021] The above embodiments are only the preferred technical solutions of the present utility model and should not be regarded as limitations to the present utility model. The protection scope of the present utility model should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present utility model.

Claims

1. A device for centering and positioning a GIS bushing and a high-voltage bushing, comprising a high-voltage bushing (1) fixedly connected to a main transformer box and a GIS bushing (2) arranged in the air, characterized in that: A first cross-shaped frame (3) is provided at the upper end of the high-voltage bushing (1), a lower positioning column (4) is provided at the center of the first cross-shaped frame (3), and a transparent cylinder (5) is provided at the upper end of the lower positioning column (4); A second cross-shaped frame (6) is provided at the lower end of the GIS casing (2), an upper positioning column (7) extending vertically downward is provided at the center of the second cross-shaped frame (6), and a laser lamp head (8) is provided at the lower end of the upper positioning column (7).

2. The centering and positioning device for a GIS bushing and a high-voltage bushing according to claim 1, characterized in that: The first cross-shaped frame (3) and the second cross-shaped frame (6) are respectively fixedly connected to the flange at the upper end of the high-voltage bushing (1) and the flange at the lower end of the GIS bushing (2) by bolts.

3. The centering and positioning device for GIS bushing and high-voltage bushing according to claim 1, characterized in that: The surface of the first cross-shaped frame (3) is provided with scales.

4. The centering and positioning device for a GIS bushing and a high-voltage bushing according to claim 1, characterized in that: The upper positioning column (7) is a telescopic column.