CO2 laser ablation device based on an off-axis RC lens group

Abstract

In order to solve the problems that a traditional high-voltage electric wire lap joint foreign matter removal mode is low in safety, high in maintenance cost and low in cleaning efficiency, and the existing CO2 laser ablation simple device is not suitable for removal of long-distance or relatively small foreign matter; the invention provides a CO2 laser ablation device based on an off-axis RC lensgroup. A CO2 laser beam expanding and focusing system, a visible light camera and a laser ranging system are realized in a three-path coaxial mode through a coaxial spectroscope group; the CO2 laserbeam expanding and focusing system is based on an off-axis RC mirror group, central shielding is avoided, the quality is light and the use requirement of a large caliber can be met; the optical axis of the visible light camera is kept coaxial with the optical axis of the CO2 laser beam expanding and focusing system, so that the best ablation effect can be ensured; the optical axis of the ranging system is kept coaxial with the optical axis of the CO2 laser beam expanding and focusing system, so that the long-distance focusing of the CO2 laser can be realized when the negative lens is focused in an adjustment lens group; and the visible light camera is combined with a two-dimensional rotating mechanism to realize the searching, capturing and locking of the foreign matter target.

Description

technical field [0001] The invention relates to an optical non-contact CO 2 Laser ablation device, in particular to a CO based off-axis RC mirror group 2 The laser ablation device can be used for foreign matter removal on high-voltage transmission lines, especially for long-distance high-voltage transmission line foreign matter removal. Background technique [0002] High-voltage and ultra-high-voltage power grids are important physical transmission networks for long-distance large-scale power transmission in power systems. The power transmission grid uses multiple high-voltage and ultra-high-voltage physical cables, which are insulated and overhead between towers with a height of 20m to 100m. Because cables are exposed to the natural environment all the year round, due to objective natural or human reasons, non-metallic foreign objects such as plastics are often lapped on cables, towers, insulators and other power grid facilities. It leads to poor insulation between high-...

AI Technical Summary

Problems solved by technology

[0006] Based on the above background, in order to solve the problem of low safety, high maintenance cost, low removal efficiency of the traditional high-voltage electric wire overlap foreign matter removal method, and the existing CO 2 The simple laser ablation device is not suitable for the technical problem of long-distance or small foreign matter removal. The present invention provides a CO based on off-axis RC mirror group 2 laser ablation device

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