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A kind of cable bending radius measuring device and measuring method

A technology of bending radius and measuring device, which is applied in the direction of measuring device, optical device, instrument, etc., can solve the problems of unfavorable measurement and large error, and achieve the effect of convenient measurement and high measurement accuracy

Active Publication Date: 2021-08-10
GUANGDONG POWER GRID CO LTD DONGGUAN POWER SUPPLY BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of measurement method has large errors and is not conducive to measurement in narrow spaces and environments where cables pass through obstacles

Method used

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  • A kind of cable bending radius measuring device and measuring method
  • A kind of cable bending radius measuring device and measuring method
  • A kind of cable bending radius measuring device and measuring method

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Embodiment Construction

[0031] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0032] In order to make the scheme of this embodiment easy to understand and explain, the bending section on the cable 5 in this embodiment is bent along the horizontal plane, and the plane where the axis of the bending section is located is the bending plane, that is, the bending plane is parallel to the horizontal plane, and the bending section of the bending section The radius is R. Of course, in other embodiments, the bending plane on the cable 5 may form an included angle with the horizontal plane.

[0033] Such as Figure 1 to Figure 3 As shown, a cable bending radius measurement device provided by the present invention includes two parallel and ...

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Abstract

The invention relates to a cable bending radius measuring device and a measuring method, comprising two parallel and spaced clamping pieces, a positioning assembly, an elastic piece and a stretchable connecting piece are arranged between the two clamping pieces, and the positioning assembly includes Two equal-length connecting rods and a positioning piece, the first ends of the two connecting rods are pivotally connected to the two clamping pieces, the second ends of the two connecting rods are pivotally connected to the positioning piece, and the two ends of the connecting piece are respectively It is fixed with two clamping parts, and the two clamping parts are elastically connected by elastic parts. By arranging two elastically connected clamping pieces, and pivoting the positioning piece through a connecting rod between the two clamping pieces, the positioning piece is always at the symmetrical center of the two clamping pieces, thereby realizing the positioning of the axis of the cable . The structure has the characteristics of convenient measurement and high measurement accuracy.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to a cable bending radius measuring device and method. Background technique [0002] High-voltage cables are prone to thermal expansion during operation. In the bending section of the cable, the internal stress of the cable is generated due to expansion, so that the side wall of the cable is subjected to extrusion or tensile force. Especially in the bending section with a small bending radius, if the internal stress on the inner and outer sides of the bending radius exceeds the design critical value, it will cause damage to the cable structure, seriously affecting the service life and operation safety of the cable. In order to ensure the safe operation of the cable, national standards and industry regulations stipulate that the bending radius of the power cable should not be less than 20 times its diameter during laying. [0003] At present, in the measurement of the ben...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/255G01B11/24
CPCG01B11/2433G01B11/255
Inventor 马永强张国锐钟建基胡仲成
Owner GUANGDONG POWER GRID CO LTD DONGGUAN POWER SUPPLY BUREAU