THE WORKING ROBOT SYSTEM OF LNGC CARGO HOLD AND CLEANING METHOD USING IT

摘要

The present invention relates to a robot system (100) capable of working in an LNGC cargo tank (1), including a first body (110) installed at a front end to move along invar tongues (2), which are installed in the LNGC cargo tank (1) at regular intervals, by a guide rail; a second body (120) installed at a rear end to move along the invar tongues (2) by the guide rail; a mechanism (130) coupled to the first and second bodies (110, 120) and having a translation module and a rotation module so that the first and second bodies (110, 120) can translate and rotate; and a working module (140) installed on the first or second body (110 or 120). Therefore, under special environments of the LNGC cargo tank, it is possible to carry out the working of cleaning, welding and inspection while automatically traveling along the invar tongues (2) by the guide rail. Since the system can repeatedly carry out the working after crossing the invar tongue (2) through the left and right translation movement and the rotation movement, the workability is improved, and the safety accident is prevented.