Probe and method for online detection of crimping quality of ny hydraulic tension clamp aluminum stranded wire
A technology for detecting probes and strain clamps, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of crimping quality degradation of aluminum stranded wires, affecting the safety of transmission lines, heating of strain clamps, etc., to reduce errors , high-precision online detection, and easy-to-operate effects
Active Publication Date: 2019-03-12
XI AN JIAOTONG UNIV
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Problems solved by technology
Due to the complex field working environment such as strong wind and vibration, the tension clamp will loosen, causing the crimping quality of the aluminum stranded wire to decline, which will cause local heating of the tension clamp to damage the wire, or even a disconnection accident, which will seriously affect the safety of the transmission line. , so it is necessary to carry out on-line detection of the crimping quality of the strain clamp aluminum stranded wire
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[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] Such as figure 1 with figure 2 As shown, a NY hydraulic tension clamp aluminum stranded wire crimping quality online detection probe of the present invention includes an external detection probe module 2 that is wound and attached to the outer wall of the aluminum tube 12 and placed in the detection hole of the steel anchor 11 The internal built-in detection probe module 1; the external detection probe module 2 is composed of a strip-shaped rubber support 8 and three metal rubber modules fixed at the bottom of the long side of the rubber support 8 with the same parameters and arranged at equal intervals. It is the first metal rubber module 5, the second metal rubber module 6 and the third metal rubber module 7. When the external detection probe module 2 is wound and attached to the outer wall circumference of the aluminum tub...
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The invention discloses a probe and a method for online detecting the aluminum stranded conductor crimping quality of an NY hydraulic strain clamp. The probe comprises an external detecting probe module wound around and attached to the circumference of the outer wall of an aluminum tube and a built-in detection probe module arranged in a steel anchor detection hole; the external detection probe module is composed of an elongated rubber support and metal rubber modules equidistantly fixed at the bottoms of the long edges of the rubber support and having three same parameters, every metal rubbermodule is connected with an impedance analyzer through a lead, and buckles are fixed at two sides of the rubber support to make the external detection probe module closely attached to the aluminum tube; and the built-in detection probe module is composed of a metal rubber probe and a guiding wire with a plastic shell, which are connected, and is connected with the impedance analyzer through a lead. The invention also provides the detection method of the probe. The method can quickly and highly-accurately detect the aluminum stranded conductor crimping quality of NY hydraulic strain clam, andhas great engineering application values.
Description
technical field [0001] The invention belongs to the technical field of non-destructive testing, and relates to a probe and method for on-line testing of crimping quality of aluminum stranded wires with NY hydraulic tension clamps. Background technique [0002] High-voltage power transmission is the main way of modern power long-distance transmission. As an important power fitting, strain clamps are widely used in the construction of high-voltage power grids. The tension clamp not only bears the tension of the transmission line, but also plays the role of overcurrent. Due to the complex field working environment such as strong wind and vibration, the tension clamp will loosen, causing the crimping quality of the aluminum stranded wire to decline, which will cause local heating of the tension clamp to damage the wire, or even a disconnection accident, which will seriously affect the safety of the transmission line. , so it is very necessary to carry out on-line detection of t...
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IPC IPC(8): G01N27/04
CPCG01N27/041
Inventor 陈振茂李勇闫贝
Owner XI AN JIAOTONG UNIV