Positioning method and positioning device of shielding ball opening position
A technology for positioning devices and shielding balls, which is applied in the direction of measuring devices, mechanical measuring devices, and mechanical devices, etc., can solve problems such as low construction efficiency, high project cost, and difficult construction on the project site, so as to solve the problem of difficult construction Effect
Active Publication Date: 2019-01-11
PINGGAO GRP +3
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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 positioning device implementing the positioning method
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[0024] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0025] A specific embodiment of the shielding ball opening position positioning device of the present invention, such as Figure 1 to Figure 6 As shown, it includes a projection point calibration piece 3, a connecting rod 4, a positioning ruler 5, a radius rod 6 and a drawing needle 7.
[0026] The projection point marking member 3 includes an annular positioning seat 31 and a positioning rod 32 extending forward and backward arranged at the middle of the rear end surface of the positioning seat 31 . The front end surface of the positioning seat 31 is provided with two positioning columns 35 at intervals from left to right, and the two positioning columns are symmetrically distributed on the ring surface of the positioning seat 31 along the diameter of the positioning seat 31. The plane extending in the direction is used for hooking on the outer circle ...
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The invention relates to a shielding ball perforating position locating method and a locating device, which are used to solve problems of an engineering site such as large construction difficulty, low construction efficiency, and high construction costs caused by identification of a perforating position requiring multiple times of tests. During the use of the locating device, an excircle positioning planar hook of a lower end of a locating column is hung on an excircle surface of a lower shielding ball, and then the excircle positioning planar hook and the excircle surface of the lower shielding ball are coplanar. The locating device is moved, and a tubular busbar locating plane of a front side of a locating ruler is tightly attached to an outer surface of a tubular busbar, and then the relative position relation between the axis of the tubular busbar and the excircle surface of the lower shielding ball is recorded by the locating device. The excircle locating planar hook of the upper end of the locating column is hung on a corresponding position of an excircle surface of an upper shielding ball, and then the excircle locating planar hook and the excircle surface of the upper shielding ball are coplanar, and then the point of the intersection between the front end surface of the locating ruler and the excircle surface of the upper shielding ball is a point of an edge of a hole required to be perforated, and by taking the above mentioned point as a reference, the central position of the hole to be perforated can be identified. The position of the hole required to be perforated can be identified accurately once.
Description
technical field [0001] The invention relates 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 open holes at the corresponding positions of the shielding ball. Due to the large struct...
Claims
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IPC IPC(8): G01B5/00
CPCG01B5/00
Inventor 常林晶雷咸伦李春迎杨国华乐波祝全乐王卫朱咏璋徐磊
Owner PINGGAO GRP