High-tension porcelain insulator flaw-detection creeping wave probe clamp

Abstract

The invention discloses a high-tension porcelain insulator flaw-detection creeping wave probe clamp. The high-tension porcelain insulator flaw-detection creeping wave probe clamp comprises a retractable rotating porcelain insulator clip with a movable part and a fixing part, and a compacting crank arm, wherein the movable part and the fixed part define a ring structure when being closed, the compacting crank arm is used for fixing a probe, rubber wheels are arranged at intervals along the annular directions of the fixed part and the movable part, and the rubber wheels rotate along the direction of an annular plane defined by the fixed part and the movable part. According to the high-tension porcelain insulator flaw-detection creeping wave probe clamp, the creeping wave probe is fixed on the stable rotating porcelain insulator clip, and the moving of the probe is realized through the integral sliding of the rotating porcelain insulator clip, so that the detecting range is wide, the probe moves more smoothly, the speed is more uniform, and the problem of high possibility of detection dead angles caused by the conventional detection method that a probe is held by a hand is solved; moreover, the compacting crank arm is used for providing the pressure applied to the probe, so that the attaching between the probe and the porcelain insulator is compact, and stress is more uniform, and detection errors caused by different pressing force degrees of different detectors are reduced to the greatest extent.

Description

technical field [0001] The invention relates to a probe holder, in particular to a special holder suitable for ultrasonic flaw detection creeping wave probes of 110kV to 220kV high-voltage pillar porcelain bottles. Background technique [0002] As an important part of the isolation switch, the high-voltage pillar porcelain bottle is directly related to the operation safety of the power grid. Due to the influence of the manufacturing process of the high-voltage pillar porcelain bottle and the long-term operation force, there have been many power grid failures caused by the breakage of the pillar porcelain bottle during operation in recent years. In order to find defective high-voltage pillar porcelain bottles in time and prevent them from accidentally breaking during operation, the power system has carried out ultrasonic flaw detection on high-voltage pillar porcelain bottles in operation, focusing on the use of creeping wave testing to detect glued parts of hig...

AI Technical Summary

Problems solved by technology

Due to the constraints of the detection location and on-site operating conditions, non-standard, inaccurate, and inadequate detection often occur during operation due to insufficient contact between the creeping wave probe and the surface of the porcelain bottle, different pressing forces of the testing personnel, and uneven moving speed of the probe. The phenomenon seriously affects the accuracy and efficiency of the detection of high-pressure pillar porcelain bott

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