| Patent application number | Description | Published |
|---|
| 20080301891 | Robot mechanism for cleaning and inspection of live-line insulators - A robot mechanism adopts a dry cleaning method to clean the surface of live-line insulators without: using water and can perform cleaning and inspection of the surface of the live-line insulators while automatically moving along an insulator string. The robot mechanism includes a main unit having upper and lower wing frames connected with each other by a connecting bracket to surround the insulator string, a cleaning unit disposed between the upper and lower wing frames and including a base frame to perform dry cleaning with a rotational brush and a CM guide, a lift unit including a clamp and a ball-bearing screw to move the main unit up or down, and an inspection unit to electrically inspect the insulators; and a coupling unit to couple a pair of the main units to allow the pair of main units to move along a tension insulator string or a suspension insulator string. | 12-11-2008 |
| 20090052605 | HANDLING SYSTEM FOR IN-CORE DETECTOR THIMBLE TUBE OF REACTOR - A handling system for an in-core detector thimble tube of a reactor is disclosed. The handling system serves to withdraw and retract a thimble tube so as to provide a movement path of a movable detector used to measure a neutron flux within a reactor. For this, the handling system basically includes a thimble tube withdrawing/retracting device, which grips the thimble tube using a plurality of synthetic resin pinch rollers to withdraw and retract the thimble tube without any damage to the thimble tube, a thimble tube tensioning device, which applies a constant tensile force to the thimble tube to prevent the thimble tube from shaking or bending upon withdrawing/retracting operations, and a thimble tube platform, which temporarily keeps the withdrawn thimble tube at a fixed position without a risk of shaking of the thimble tube and provides a movement path of the thimble tube tensioning device. With automatic withdrawal/retraction of the thimble tube without damage provides advantages of an extended thimble tube exchange interval, improved safety of system facilities, reduced labor costs and working time, and reduced worker radiation exposure, shortened precaution/maintenance period, and enhanced reactor use efficiency. | 02-26-2009 |
| 20100100239 | ROBOT MECHANISM FOR INSPECTION OF LIVE-LINE SUSPENSION INSULATOR STRING - Disclosed herein is a robot mechanism for inspection of a live-line suspension insulator string. A robot body of the robot mechanism reciprocates along the live-line suspension insulator string and includes upper and lower robot frames configured to encircle the insulator string, a battery module provided to either end of the robot body, an actuation module for moving the robot body along the insulator string, an inspection module for electrically inspecting an insulator, a connection module for coupling the robot body to an installation/dismantlement mechanism, a wing opening/closing module for manually separating the robot body from the insulator string, a measurement module for measuring electrical properties of the insulator, a controller for controlling operation of the robot body, and a crack detection unit for detecting cracks formed in the insulator. | 04-22-2010 |
| 20100145517 | ROBOT MECHANISM FOR NONDESTRUCTIVE AGING EVALUATION OF CABLE - The present disclosure relates to a robot mechanism for nondestructive aging evaluation of a cable. The robot mechanism includes at least two inspection modules, and a coupler disposed between the at least two inspection modules and connected to each of the inspection modules to adjust a separation between the inspection modules. Each of the inspection modules approaches a cable and automatically inspects an aged state of the cable. The robot mechanism automatically measures an aged state of a cable in a nondestructive manner and establishes a database of cable aging, so that normal operation of the cable can be ensured through stable management of the cable by evaluating a replacement time and the aged state of the cable based on the database. | 06-10-2010 |
| 20110037482 | Nondestructive inspection method of insulator using frequency resonance function - A nondestructive inspection method of testing insulators using frequency resonance function that can inspect an anomaly of an insulator by vibrating the insulator with a force having the characteristic of white noise, measuring the change in motion of the insulator according to the vibration and calculating the frequency resonance function of the insulator is disclosed. | 02-17-2011 |
