An insulator surface rtv spraying thickness measuring device
A thickness measurement and insulator technology, applied in the field of power equipment, can solve the problems of one-sided measurement, large measurement error, low efficiency, etc., and achieve the effect of fast measurement and simple operation
Active Publication Date: 2018-06-12
STATE GRID CORP OF CHINA +1
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Problems solved by technology
This method must ensure that the probe is perpendicular to the surface of the insulator, and the measurement error is large
The second method is to cut a slice on the surface of the insulator after the coating is completely dry, and then use a vernier caliper to measure the thickness of the slice. This method not only destroys the RTV coating, but also cannot slice and sample various parts. The measurement results one-sided
It can be seen that the existing measurement technology has large errors, one-sided measurement and low efficiency
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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0025] Please refer to figure 1 with figure 2 , figure 1 It is a schematic structural diagram of the mechanical measuring mechanism of the RTV spraying thickness measuring device on the surface of the insulator provided in the specific embodiment of the present invention, figure 2 It is a block diagram of the layout of the signal processing module in the specific embodiment of the present invention.
[0026] In a specific embodiment, th...
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The invention discloses an insulator surface RTV spraying thickness measuring device, which comprises a first lever arm and a second lever arm hinged together, a first pressure head and a sensor are arranged on the first lever arm, and a first pressure head and a sensor are arranged on the second lever arm. There is a second indenter arranged opposite to the first indenter and a measuring head arranged opposite to the sensor, and also includes an elastic clamping device for pressing the first indenter and the second indenter into contact, and the sensor is connected with signal processing module. When measuring, the two indenters are separated and the insulator sheet is placed between the two indenters, the distance change between the two indenters is converted into the distance change between the sensor and the measuring head and the sensor The signal processing module can calculate the thickness of the insulator sheet according to the change of the sensing signal. The measured difference in thickness of the insulator sheet before and after spraying RTV is the thickness of the RTV coating. The invention does not need to destroy the RTV coating, and can accurately and rapidly measure the thickness of the RTV coating.
Description
Technical field [0001] The invention relates to the technical field of power equipment, in particular to a device for measuring the thickness of RTV spraying on the surface of an insulator. Background technique [0002] In the case of long-term operation of the insulator, some dirt will adhere to the surface. In severe weather such as dew, fog, drizzle, etc., the soluble substances in the dirt will gradually dissolve in water, forming a dirt layer on the surface of the insulator, making the surface of the insulator conductive The leakage current increases and the partial discharge on the surface of the insulator develops into an arc flashover (pollution flashover) under the action of an external electric field. RTV coating has excellent hydrophobicity and hydrophobicity migration. After the RTV coating is sprayed on the surface of the insulator, the coating is cured into a film after contacting with water molecules in the air, which makes the outer insulating surface of the insul...
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IPC IPC(8): G01B7/06
Inventor 孙为民魏福军刁彦平王建伟魏海军商力新刘玉明吴思源韩旭孟庆大毛婷张伟田霖杨坡杨建李旸董冠初侯宜男张宇宁琳
Owner STATE GRID CORP OF CHINA