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Shielding ball holing position positioning method and positioning device

The technology of a positioning device and a positioning method, which is applied in the direction of measuring devices, mechanical devices, mechanical measuring devices, etc., can solve the problems of low construction efficiency, high project cost, and difficult construction on the project site, and achieve the solution of difficult construction, The effect of increasing the project cost

Active Publication Date: 2015-11-18
PINGGAO GRP +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a positioning method for the position of the opening of the shielding ball, so as to solve the problems of difficulty in construction at the engineering site, low construction efficiency and high cost of the project due to the need for multiple tests to find the position of the opening; at the same time , the object of the present invention is also to provide a device for implementing the positioning method

Method used

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  • Shielding ball holing position positioning method and positioning device
  • Shielding ball holing position positioning method and positioning device
  • Shielding ball holing position positioning method and positioning device

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Embodiment Construction

[0021] Embodiment of the method for locating the opening position of the shielding ball:

[0022] The principle of the positioning method of the opening position of the shielding ball is as follows: figure 1 As shown, the following steps are included: firstly, on the outer surface of the shielding ball 1, a pointing device coincident with the extension line C1A of the radius of the shielding ball 1 is set, and then on the outer surface of the shielding ball 2, the extension line of the radius of the shielding ball 2 is set. C2A coincides with the pointing device, and then rotates the two pointing devices along C1 and C2 until C1A and C2A coincide. At this time, the coincident C1A and C2B coincide with the connecting line C1C2 of the two shielding balls, and the connection between C1A and shielding ball 1 The intersection point P1 is the position where the shielding ball 1 needs to be drilled, and the intersection point P2 between C2B and the shielding ball 2 is the position wh...

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Abstract

The invention relates to the technical field of a transformer station used for power supply and distribution, particularly relates to a shielding ball holing position positioning method and positioning device, and aims at solving problems of high project field construction difficulty, low construction efficiency and high project cost caused by the fact that a holing position is accurately found after multiple times of testing in field installation of shielding balls. In order to solve the problems, the invention provides the simple positioning method. In order to implement the method, the invention provides the preferable positioning device. The positioning device comprises positioning covers which comprise positioning surfaces of which the central axes constantly pass through the centers of spheres of the shielding balls. Internal diameter of the positioning surfaces is identical to diameter of a tubular bus requiring installation. The positioning covers are fixedly provided with pointing devices of which extension direction is overlapped with the central axes of the positioning surfaces. In field installation of the shielding balls, the two positioning covers arranged on the surfaces of the two shielding balls are moved and the two pointing devices are enabled to point to one straight line so that the position of the positioning surfaces is the position requiring holing.

Description

technical field [0001] The invention relates to the technical field of substations for power supply and distribution, in particular to a positioning method and a positioning device for opening positions of shielding balls. Background technique [0002] UHV DC transmission technology has been widely used in China in recent years, and many transmission lines have been built. The converter station is an important part of the DC transmission project. The valve hall of the converter station is a closed space for AC and DC conversion. The corona phenomenon at the end of the wire, the slot and the corner in the valve hall is serious. It will cause heat accumulation and cause a series of adverse effects. Therefore, it is necessary to add shielding fittings at the ends and corners of the tubular busbar to increase the anti-corona capability of the tubular busbar. [0003] During on-site construction, in order to connect the shielding ball to the tubular busbar, it is necessary to o...

Claims

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Application Information

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IPC IPC(8): G01B5/00
Inventor 徐健涛常林晶杨国华李俊辉宋铁创
Owner PINGGAO GRP
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