Special cutting tool for transformer oil-resistant sealing ring

Abstract

The invention discloses a special cutting tool for a transformer oil-resistant sealing ring. The special cutting tool comprises a framework, the framework comprises a transverse framework and at leastone longitudinal framework fixed with the transverse framework in a crossed manner; a positioning needle A is arranged at a crossed fixing point of the transverse framework and the longitudinal framework and / or the central point of the transverse framework; measuring arms A are hinged to the two ends of the transverse framework respectively and can rotate relative to the transverse framework witha hinge point as the circle center; the two ends of the longitudinal framework are each provided with at least one group of measuring arms B, and the measuring arms B can reciprocate in the length direction of the longitudinal framework; the measuring arms A and the measuring arms B are provided with scales and rails in the length direction of the measuring arms A and the measuring arms B respectively; and the rails penetrate through the measuring arms, at least one group of cutting knife assemblies are arranged in the rails, each cutting knife assembly comprises a cutting knife and a lockingpiece, and the locking pieces can fix the cutting knives to the rails. The cutting efficiency and precision of the transformer oil-resistant sealing ring can be improved through the cutting tool.

Description

technical field [0001] The invention specifically relates to a special cutting tool for an oil-resistant sealing ring of a transformer. Background technique [0002] As a kind of seal, the transformer oil-resistant sealing ring plays a key role in the operation of the transformer. If the sealing ring is aging and is not replaced in time, it will cause oil leakage at the transformer connection. Therefore, maintenance personnel need to carry out regular inspections on the transformer sealing ring. Check and replace. [0003] At present, due to the variety of specifications and sizes of the flanges at the transformer connection, there are often situations where there is no spare seal ring or the size of the spare seal ring is not suitable. Therefore, maintenance personnel are required to carry rubber sheets and cutting tools for on-site cutting. The function of the cutting tool is not perfect, and maintenance personnel need to use a meter ruler to measure the inner diameter an...

AI Technical Summary

Problems solved by technology

[0003] At present, due to the variety of specifications and sizes of the flanges at the transformer connection, there are often situations where there is no spare seal ring or the size of the spare seal ring is not suitable. Therefore, maintenance personnel are required to carry rubber sheets and cutting tools for on-site cutting. The function of the cutting tool is not perfect, and maintenance personnel need to use a meter ruler to measure the inner diameter and outer diameter of the connecting flange sealing ring; then mark the scale on the rubber sheet, and then cut the outer diameter and inner diameter separately. The precision of the sealing ring produced is not enough, and the error is large. At the same time, most of the cutting instruments with high precision on the market are bulky and need to be powered on for operation, which is not conducive to the application of on-site emergency repairs. Based on the above analysis, this application provides a simple structure Special cutting tool for transformer oil-resistant seal ring

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